JPS6318244B2 - - Google Patents

Description

[Detailed description of the invention]

The present invention relates to a record player equipped with an automatic program selection function. DESCRIPTION OF THE PREFERRED EMBODIMENTS The record player of the present invention will be described below with reference to drawings of embodiments. 1 and 2 show an embodiment of the record player of the present invention, and in the figures, 1 is the record player main body, and 2 is the record player main body 1.
A record player lid is rotatably attached via a hinge 3, 4 is a stop button, 5 is a start button, 6 is a cueing button, 7 is a repeat button, 8 is a power button, 9 is a group of program key buttons, 10 is a Stop operation display element, 11
is a start operation display element, 12 is a cueing operation display element, 13 is a repeat operation display element, 14
is a group of program operation display elements provided corresponding to each program key button. As shown in FIG. 2, the record player main body 1 has a turntable 16 mounted on a turntable shaft 15 rotated by a motor (not shown), and the turntable 16 is mounted around the turntable shaft 15. An EP adapter 17 is provided on the top surface of the EP adapter 16 and is always biased by a spring in the direction of protrusion.
On the other hand, the record player lid 2 is provided with a linear tone arm device 18, a record disk holding device 19, and a track interval detection device 20 on its inner surface. The linear tone arm device 18 has guide rails 2 disposed opposite to each other as shown in FIG.
A support base 24 is attached to a moving base 23 that moves on 1 and 22.
A tone arm 26 is supported on this support base 24 by a pivot bearing 25 so as to be movable in angle. A plate 28 having a pointer 27 is protruded from the movable base 23, and the pointer 27 is located on the axis of the tone arm 26 and corresponds to the display window 29 provided on the record player lid 2. There is. The movable base 23 has a plunger 30 for vertically moving the tone arm 26.
The plunger 30 is connected to the tone arm 26 via a link mechanism (not shown).
It is designed to drive a lift shaft 31 placed opposite to the upper surface of the. The moving base 23 is provided with a light receiver 46 and a light emitter 47 facing each other,
A shutter plate 48 provided on the tone arm 26 is positioned between the light receiver 46 and the light emitter 47. These light receivers 46 and emitters 4
When the tone arm 26 swings during the performance of the tone arm 26, the signal from the photocoupler consisting of the shutter plate 7 and the shutter plate 48 is transmitted.
It is used to control the opposing relationship with the moving base 21 to maintain a substantially parallel relationship. A balance weight 49 is attached to one end of the tone arm 26, and a pickup cartridge 50 is attached to the other end. On the other hand, the rotational force of the motor 51 as a driving source for moving the tone arm 26 is applied to a pulley 5 provided on the motor shaft.
2 and a pulley 54 provided on the shaft of the worm gear 53.
and is transmitted to a drum 57 coaxial with a gear 56 meshing with the worm gear 53. The tone arm 26 is moved by connecting a connecting rod 61 provided on the movable base 23 to a rope 60 stretched between the drum 57 and the other pulleys 58, 59. Further, the tone arm 26 corresponds to a rest switch 62, and is configured to move approximately linearly by the guide rails 21, 22, and its rest position is 30 cm, which is the maximum diameter mounted on the turntable 6.
This corresponds to the performance start position on the record disc 42. The record disc holding device 19 is attached to the inner surface of the record player lid 2 with a ball bearing at the center, and the record disc holding device 19 is attached to the inner surface of the record player lid 2, and the record disc holding device 19 is mounted on the turntable 16. 42 is biased by a spring so as to press it against the turntable 16 side. Then, it is rotated together with the turntable 16. As shown in FIG. 3, the song interval detection device 20 has the rope 60 installed in the radial direction of the record disc 42 using separate pulleys 32 and 33, and can be adjusted by an adjuster 34 on the rope 60. installed on. The track interval detection device 20 houses a light emitting element 36 and a light receiving element 37 in a holder 35, and is adapted to be moved linearly in the radial direction of the record disc 42 by the rope 60.
Therefore, when the record player lid 2 is closed, the song interval detection device 20 faces the record disc 42 on the turntable 16, moves in conjunction with the tone arm device 18, and detects the light emitting element 36. The light beam emitted from the record disc 42 hits the record disc 42, and the light receiving element 37 receives the reflected light. At this time, the non-recording part of the record disc 42 has a high reflectance of light and a large amount of light enters the light receiving element 37, while in the sound groove part the light is diffusely reflected and the amount of light entering the light receiving element 37 is small. The gap between songs is detected based on the difference in light reflectance between the groove and the groove. The signal from the song interval detection device 20 is processed by a microcomputer serving as a control circuit to control the operation of the tone arm device 18. In addition, the record player lid body 2
A switch 38 is provided between the inner surface of the record player body 1 and the switch 38.
8 is used as a stop signal to the drive circuit of the linear tone arm device 18 when the record player lid 2 is opened while the linear tone arm device 18 is in operation. Although not shown, the tone arm 26 includes a tone arm 2.
A switch is provided for detecting that 6 itself is down. Further, a slit disk 41 is provided on the shaft of the worm gear 53 so as to be rotated between a light receiving element 39 and a light emitting element 40 which are provided facing each other. The signal from the photocoupler made up of the photocoupler 40 and the slit disk 41 is processed by a microcomputer as a control circuit and used to control the position of the tone arm device 18. FIG. 5 shows an electrical block diagram of the record player of the present invention, in which 71
is a microcomputer as a control circuit,
Start, stop, queueing, repeat,
Operation signals from the operation display unit 72 including program keys and a group of display elements thereof are input, and lighting and blinking signals are output to the display elements corresponding to the operated buttons. Further, the control circuit 71 receives an open/close detection signal from an open/close detection section (corresponding to the switch 38) 73 that detects the open/close state of the record player lid 2, and receives an open/close detection signal from an opto-sensor as the song interval detection device 20. A song interval detection signal and a record size detection signal are input from a song interval detection circuit 74 driven by the reflected signal. The control circuit 71 also receives a tone arm position detection signal from the tone arm device 18 (corresponding to the signal from the light receiving element 39) and a tone arm down detection signal (corresponding to the switch built in the tone arm 26). A drive signal is output to the plunger 30 for vertically moving the tone arm device 18, and a drive signal is output to the drive circuit 75 (corresponding to the motor 51) for moving the tone arm device 18. be done. Incidentally, an offset angle detection signal (corresponding to the signal from the light receiving element 47) from the tone arm device 18 is inputted to the drive circuit 75. The control circuit 71 is a muting switch circuit 26 provided in the transmission system of the cartridge output from the tone arm device 18.
A drive signal for driving is output. 77 is a motor 79 for rotating the turntable 16.
The drive circuit 78 is a rotation speed switching circuit for switching the rotation speed (45 rpm or 33 rpm) of the motor 79, and these drive circuit 77 and rotation speed switching circuit 78 are also controlled by the output from the control circuit 71. It's becoming like that. Microcomputer 7 as the above control circuit
1 exchanges signals with the various circuits 72 to 78 described above, and is pre-equipped with routines for various functions described below. In other words, the RAM in the microcomputer as the control circuit 71 has a counter for detecting between songs, a counter for waiting time, a counter (SELECT CUNTER) for detecting the end of a song, and a counter for recognizing the lead-in position. , a counter (A counter) to recognize that the tone arm has been pulled back by a preset distance when moving in the reverse direction, A counter (B counter) to prevent the inter-track detection signal from being read at the edge of a particular record disc when detecting a disc interval, a counter to detect the end of a record disc, and a counter to prevent the inter-track detection signal from being read at the edge part of a certain record disc. A counter (WORKING) that temporarily works to recognize the distance between songs.
COUNTER), a counter (LEDFLASH COUNTER) for flashing the display element corresponding to the operated repeat key or program key, and a memory (KEYSCAN) for reading the operation status of each key such as stop, start, repeat, cueing, program, etc. ), and the following memories are also used.

[Table] On the other hand, the ROM in the microcomputer as the control circuit 71 has an initial mode routine, a standby routine, a program mode routine, an auto mode routine, a plain loop routine, and a skip routine, as shown in FIGS. 6 to 13. It is equipped with a mode routine, deck search routine, search mode routine, etc., and these control circuits 7
1 allows the record player to perform various functions such as an automatic program selection function, a program repeat function, an intermittent cue function, an inter-song cue function, and an inter-song search function. Here, the initial mode routine of the ROM in the microcomputer is as shown in FIG. That is, after the initial setting process 101, it is determined whether or not the tone arm is at the rest position, and if it is at the rest position, the process moves to the M-9 position of the next standby mode routine. If it is not at the rest position, the open/closed state of the lid is determined and key input reading processing 102 is performed. Then, processing 103 is executed to determine the operation status of the forward key (corresponding to the start button) and reverse key (corresponding to the stop button), and following this process 103, the operation status of the repeat key is determined by M (φ.6 ) position in the memory, and also determines the operation status of the program key by checking the M memory of the RAM.
(φ.7) Judging from the program flag in the memory at the position, when these keys are operated, the corresponding display element is lit, and the initial setting process 10
A process 104 of returning to the RETURN position of 1 is executed. On the other hand, if the repeat key is not operated based on the repeat flag, the RAM M
The operation status of the start key is determined based on the start flag in the memory at the (φ.5) position, and the M(φ.
A) The position register is connected to the display element for repeat, and the operation status of the program key is judged by the program flag in the memory at the M (φ.7) position of the RAM. Process 105 of lighting and blinking the corresponding display element and returning to the RETURN position of initial setting process 101
Execute. Then, in process 105, if the start key is not operated as determined by the start flag, process 106 turns off the corresponding display element and returns to the RETURN position of initial setting process 101.
Execute. Also, in the microcomputer
The standby mode routine of the ROM is as shown in FIG. That is, following the initial setting process 101 of the initial mode routine, a queuing up operation is performed to determine whether the lid is open or closed, and when the lid is open, the process 201 of returning to the INITAL position of the initial mode routine is executed. do. Repeat flag when the lid is closed,
A process 202 is executed to determine the operating states of the repeat key and start key based on the start flag.
If it is determined in this process 202 that no key has been operated, the memory contents of the memory at positions M (φ.φ) to M (1.c) in the RAM, that is, the contents of the program corresponding to the program key, are cleared. After determining the open/closed state of the lid body and writing the key input, a process 203 is executed to determine the writing status of the inter-musical data by the inter-musical detector 20. And this process 203
When it is determined that the lid is open, the process returns to the INITAL position of the initial mode routine. If it is determined in the above process 202 that a key has been operated, REFRAN in process 206 described later
transferred to the position. If it is determined in the above process 203 that inter-song data has been written, the operating state of the program key is determined and the key input is written or the contents of the memory at the M (φ.5) position in the RAM are canceled. 204 is executed. Following this process 204, the operation state of each of the reverse, forward, and queuing keys is determined, and a process 205 is executed in which the start flag of the M (φ.5) position memory in the RAM is operated. In this process 205, if the reverse key is operated, the process returns to the CLI position in the same routine, and if the forward and queuing keys are operated, the process moves to the next process. Following this process 205
If it is determined that the start (forward) key is not being operated based on the start flag in the M (φ.5) position memory in RAM, the process returns to the STBY position in process 203, and if it is determined that it is being operated, it is stored in the RAM. Process 206 for determining the operating state of the program key based on the program flag in the M (φ.7) position memory.
is executed, then it is determined whether there is a record disc on the turntable, it is determined whether the contents have been written to the M (1.c) position memory in the RAM, and the next program mode routine is executed. Process 20 to move to
Execute step 7. If it is determined in this process 206 that the program key has not been operated, the process moves to the next auto mode routine, and if it is determined in process 207 that there is no record disc or that there is a number of reserved songs, the same routine is executed. Return to CLI position within. On the other hand, when it is determined in process 203 that inter-track data has not been written, the record size is determined, the presence or absence of a record is determined, and the operating state of the program key is determined and the key input is written. A process 208 for transitioning to the process is executed. If it is determined in this process 208 that there is no record disc, the process returns to the CLI of the same routine, and if it is determined that no program key has been operated, the process returns to the STBY8 position of the same routine. Further, the program mode routine in the ROM of the microcomputer is as shown in FIG. That is, following the process 207 of the standby routine, the start flag of the M (φ.5) position memory in the RAM is canceled, the number of reserved songs is retained, and the first song number is changed to the current song number and the song number. Transfer to the movement counter. Then, the process 30 sets the current number of songs, the performance song number order to 1, and rotates the turntable only after setting the lead-in and end counters.
Execute 1. Following this process 301, it is determined whether the record disc is a 30cm record,
If it is a 30cm record, it is determined whether the song to be played is the first song, and if it is determined to be the first song, the same routine is performed after a waiting period.
Processing 302 for moving to the PRO7 position is executed. If it is determined in this process 302 that it is not the first song, conditions are set so that the pulse between songs is not read while the tone arm advances a certain distance, and the process 303 of the same routine moves to the PRO70 position. Execute. (See Figure 8a). Also,
After playing a song in program mode, the program mode routine is as shown in FIG. 8b. That is, if the songs to be played next are consecutive, no queuing is performed, and if the songs are not consecutive, the process 304 is performed in which the queuing is performed. Following this process 304, a process 305 is executed in which the display of completed songs is turned off and 1 is subtracted from the number of reserved songs. Following this process 305, if the result of subtracting the number of reserved songs is 0 and it is not in the repeat state, or if the first number of reserved songs is not 1 even if it is in the repeat state, the RETRN2 position of the initial mode routine is Transfer process 3
Execute 06. If the first number of songs reserved in this process 306 is one song, next set the conditions for inter-song repeat, turn on the display element that was just turned off again, and if the song number is the first song, the repeat condition will be set. The process moves to the PRO20 position of the routine, and if not, the process 307 of moving to the PRO62 position of the routine is executed. In process 305, if the result of subtracting the number of reserved songs is not 0, the current number of songs and the number of songs are
1 is added to the number, and if the next song number is not 1, the current song number is subtracted from the next song number, and processing 308 is executed to judge the result of the subtraction. If the subtraction result is 0 in this process 308, the next song number is
Move the song number you are about to play to the current song number, subtract the current song number from the next song number,
If it is 1, a condition indicating that the order of the programmed songs is continuous is given, and if not, a process 309 is executed to proceed to the next process 320 without giving the condition. If the subtraction result in process 308 is not 0, determine whether it is positive or negative, and if it is positive, move the number to the inter-song movement counter, rotate the tone arm motor in the positive direction, and detect the inter-song pulse while detecting the position. Determine whether it is within the reading conditions,
If it is within that condition, the inter-song pulse is detected,
A process 310 that moves on to the next process 322 is executed. If the positive/negative determination result in this process 310 is negative, 1 is added to the result, the addition result is transferred to the inter-music movement counter, the tone arm motor is reversely rotated, and the PRO48 position in the process 310 is Processing 311 is executed. If the next song number in process 308 is 1, the tone arm motor is rotated in reverse, the position is detected, the key input is read, it is determined whether or not the reverse (stop) key has been operated, and it is determined whether the reverse (stop) key has been operated or not. If so, the process 312 of moving to the PRO51 position of the same routine is executed. In this process 312, if the reverse (stop) key is not operated, repeat key input processing is performed to determine whether the lid is open or closed, and if it is not in the search mode, it is determined whether or not it is a 30cm record, and the tone arm is A process 313 is executed to determine whether or not is at the rest position. This process 313
Subsequently, if it is the rest position, queuing is performed, the lead-in and end counts are set, and the process 314 of moving to the PRO7 position of the same routine is executed. In process 313, if the lid is open, the process returns to the INITAL position of the initial mode routine, if it is in the search mode, the direction of movement of the tone arm is determined, and if it is in the reverse direction, the tone arm is within the sound groove of the record. Decide whether or not
If it is within the sound groove, proceed to PRO201 of the same routine Process 3
Execute step 15. Also, in process 313, 30cm
If the tone arm is not on the record, it is determined whether or not the tone arm is on the record, and if it is not on the record, the condition is set so that the pulse between songs is not read for a certain distance, the routine moves to the PRO72 position, and the tone arm is placed on the record. If it is, the process 316 of the same routine to move to the PRO201 position is executed. Then, process 31
3, if it is not in the rest position, the same routine
Move on to PRO201. If the determination result of the direction of movement of the tone arm in process 315 is not the reverse direction, it is determined whether or not it is the end of the song, and if it is not the end of the song, the process moves to PRO201 of the same routine, and if it is the end of the song, it is determined whether or not it is the end of the song. Process 31 to proceed to next process 318
Execute step 7. If the judgment result in process 315 is that the tone arm is not within the sound groove, or if it is the end of the song in process 317,
Subtract 1 from the inter-song movement counter, judge the result, and if the subtraction result is 0, repeat the same routine.
A process 318 for moving to the PRO71 position is executed. In this process 318, if the subtraction result is not 0, the direction of movement of the tone arm is determined, and if it is the forward direction, it moves to the PRO70 position of the same routine, and if it is the reverse direction, it moves to the PRO62 position of the same routine Process 31
Execute step 9. Following process 309, the song width data is set, and if it is a 30cm record, the song interval counter is set to 0, the up/down state of the tone arm is determined, and if it is up, a cueing down command is given and the play loop begins. mode routine
Move to the PLAY position, and if it is down, activate the servo circuit controlled by the offset surface detection signal and start the play loop mode routine.
A process 320 of moving to the PL4 position is executed. In this process 320, if it is not a 30cm record, the current song number is determined, and if it is not the first song, the same process 320 is performed.
If it is the first song, it is determined whether or not the tone arm is on the record, and if it is on the record, it is moved to the PRO45 position of the same process 320, and if it is determined that it is not on the record. Next, the process 321 of moving to the A22 position of the auto mode routine is executed. (See Figure 8C). Processing 310
Subsequently, it is determined whether or not there is an inter-song pulse,
If there is an inter-song pulse, 1 from the inter-song movement counter
is subtracted, and if the subtraction result is 0, the tone arm motor is stopped, and processing 322 is executed to determine the traveling direction of the tone arm. In this process 322, if there is no inter-song pulse or if it is determined that the subtraction result of the inter-song movement counter is not 0, the traveling direction of the tone arm is determined, and then it is determined whether or not it is at the rest position, and the determination result is If is not in the forward direction or the rest position, determine whether it is the end of the record, if it is not the end of the record, determine whether the lid is open or closed, and if the lid is closed, read the key input. , the operating state of the reverse (stop) key is determined, and if it is not in the operating state, the rebeat key input is read and processing 323 is executed to move to the PRO48 position of the program mode routine. In this process 323, if it is determined that it is the rest position, the end position of the record, or the reverse (stop) key is being operated, the repeat flag of the M (φ, 6) position memory in the RAM The process 324 is executed to cancel the `` and return to the RETRN2 position of the initial mode routine. If the determination result of the direction of movement of the tone arm in process 322 is the forward direction, overrun detection process 325 is performed to move to the PRO7 position of the program mode routine. If the determination result of the direction of movement of the tone arm in process 322 is the reverse direction, conditions are set so that inter-track pulses are not read for a certain distance, the tone arm motor is reversely rotated, and if the tone arm moves a certain distance, the tone After the process 326 of stopping the arm motor, an overrun detection process 327 is executed, and 1 is added to the inter-song movement counter.
and executes the process of moving to the PRO70 position in the same routine. (See Figure 8C). On the other hand, the above process 3
After processing in the auto mode routine following 21, overrun detection processing 328 is performed,
Clear the search ladder of the M (φ, B) position memory in RAM and start the program mode routine.
Execute the process of moving to the PRO45 position. Further, the auto mode routine in the ROM of the microcomputer is as shown in FIG. In other words, if you are determining the size of the disks, determine whether there is a desk or not, and if there is no desk, then the standby routine
Execute process 401 to return to the CL1 position, and if the disk size has not been determined, determine whether it is a 30cm record, and if it is not a 30cm record, set the end counter and execute the disk search routine.
Move to the SLCT2 position, and if it is a 30cm record, process 402 is executed to set the conditions. Processing 4
If there is a disc in 01, or if there is a 30cm record and the conditions have been set, then the turntable is rotated and after the waiting time has elapsed, the lead-in and end counters are set, and the 30cm record is set.
Processing 403 is executed to determine whether or not it is a cm record. In this process 403, when it is determined that it is a 30 cm record, it is determined whether the program mode is set, and if it is not the program mode, a cueing down command is given and the process moves to the PLAY position of the play loop mode routine. The process 404 of moving to the PRO80 position of the mode routine is executed. If it is determined in process 403 that it is not a 30cm record, then the tone arm motor is reversely rotated, and the open/closed state of the lid body is determined, and if it is open, it moves to the INITAL position of the initial mode routine, and if it is not closed, it moves to the INITAL position of the initial mode routine. It judges whether the tone arm is on the record or not, and if it is not on the record, it reads the key input while detecting the position and reverses (stops).
If the key operation status is judged and the key is not operated, the repeat key input is read and the process returns to the A25 position in the same process, and if the reverse (stop) key is operated, the M (φ, 6) position memory in the RAM is executed. Processing 405 is executed to cancel the repeat flag of and return to the RETRN2 position of the initial mode routine. After processing in the disk search mode routine described later, it remembers that the disk has been sized, determines whether there is a disk, and if there is no disk, it
Clear the repeat flag of the M (φ, 6) position memory in RAM and start the initial mode routine.
A process 406 of returning to the RETRN2 position is executed.
If it is determined in this process 406 that there is a disc, then the turntable is rotated, lead-in and end counters are set, and then the lead-in counter and end counter are compared with preset values, and the current The tone arm position is corrected, and if the lead-in position has been reached as a result of the correction, the tone arm motor is stopped and the process moves to process 404; if the lead-in position has not been reached, the tone arm position is moved to the A22 position in the same routine. A moving process 407 is executed, and if the tone arm is on the record in process 405, the tone arm motor is stopped in the same way as when the tone arm had reached the lead-in position, and the process moves to process 404. The play loop mode routine in the ROM of the microcomputer is as shown in FIG. In other words, it determines whether the lid is open or closed, and if the lid is open, the initial mode routine starts.
Moves to the INITAC position, if the lid is closed, reads the key input, processes the re-hint key input, determines the operation status of the reverse (stop) key, and if it is operated, starts the search mode routine.
Moves to the REV position, if not operated, then determines the operating state of the forward (start) key, if operated, moves to the FWD position of the search mode routine, if not operated, determines whether it is in program mode or not. A process 501 for determining is executed. In this process 501, if it is not the program mode, it is stored that the program key was not operated last time, a cueing key input process is performed, and a process 502 is executed to determine whether or not the cueing key has been operated. . Processing 501
If it is in the program mode, it is determined whether or not the program key has been operated, and if it has not been operated, the process moves to the beginning of process 502, and if it has been operated, it is determined whether or not the program key was operated last time. If so, the process moves on to the cueing key input process in step 502, and if the program key has not been operated previously, it is determined whether the program key corresponds to a previously reserved song that has not yet finished playing. However, if the program key does not correspond to a song whose performance has not yet been completed, the process moves to step 502 for inputting a cueing key, and if the program key is not a program key corresponding to a previously reserved program whose performance has already been completed. If so, process 5 to remember that the program key was operated this time and move to the Skip position of the skip mode routine.
Execute 03. If there is a chewing down command in process 502, it is determined whether or not it is the end of the record, and if it is the end of the record, it is determined whether or not it is in program mode, and if it is in program mode, M (φ, 6) The rebeat flag of the position memory is canceled and the process 504 of moving to the RETRN2 position of the initial mode routine is executed. In this process 504, if it is not the end of the record, it is determined whether the tone arm is up or down, and if it is down, it moves to the PL4 position of the same routine.
If it is up, the tone arm motor is stopped, the key input is read, the cueing key input processing is performed, a cueing down command is determined, and if there is no cueing down command, the cueing is turned up. Processing 505, which is the beginning of processing 508 to be described later, is executed. In this process 505, if there is a cueing command, the cueing is performed down, and it is determined whether the stylus at the tip of the tone arm has fallen onto the record disk.
Also, if the tone arm has not finished falling down, the process moves to step 505 to read the key input, and if it has finished falling down, after the waiting time has elapsed, it is determined whether the stylus at the tip of the tone arm has fallen onto the record disc again. If it has not finished down again, process 505.
If the tone arm has finished going down, it will be remembered that it has finished going down, the servo circuit controlled by the offset angle detection signal will be operated, and it will be remembered that the tone arm will move forward. Processing 506 is executed. In process 502, if there is no cueing down command, the tone arm motor is stopped, and the tone arm is determined to be up and down, and if it is down, it is cued up, and in process 508, which will be described later.
Processing 507 that moves to the beginning of is executed. Processing 50
5, 506, and 507, the position of the tone arm is detected, and it is determined whether or not it is in program mode. If it is program mode, it is determined whether it is in search mode, and whether it is in search mode or not. For example, the display element corresponding to the song currently being played will flash, the routine will move to the PLAY position, and if it is not in program mode, the routine will start immediately.
Move to the PLAY position, if it is not in search mode, determine whether it is the end of the song on the record, and if it is the end of the song, move to the PRO40 position of the program mode routine, and if it is not the end of the song, display within the same process Processing 508 is executed to move to processing for causing the element to blink. The skip mode routine in the ROM of the microcomputer is shown in FIG. In other words, the display element corresponding to the operated program key is lit, the cueing is performed, and the search mode is memorized, and whether the operated program key is the program key corresponding to the song currently being played or not. Process 60 for determining whether
Execute 1. If it is determined in this process 601 that the operated program key is not the one currently being played, then the operated program key is selected from the reserved tune currently stored in the M (1, c) position memory in the RAM. By subtracting the number of skipped songs according to the order of
B) Make a correction by replacing the next song number currently stored in the position memory with the song reserved next to the song corresponding to the operated program key,
A modification is made to add the number of songs skipped according to the operated program key to the current number of songs currently stored in the M (2, c) position memory in RAM, and the program key reserved in advance is added. Among the display elements that are lit corresponding to the program key, the display element corresponding to the skipped song is turned off, and the currently played song number is subtracted from the song number corresponding to the program key that was just operated. The sign of the subtraction result is determined, and if the operated program key is the one currently being played, the inter-music movement counter is set to 1, and the process 602 of moving to the SK1 position of process 604, which will be described later, is executed. If the subtraction result is positive in this process 602, the subtraction result is set in the inter-song movement counter,
Displays the song number corresponding to the program key you just operated.
The current song number is stored in the M (1, φ) position memory in RAM.
, rotate the tone arm motor in the forward direction, and execute the program mode routine.
Processing 603 for moving to the PRO201 position is executed. In process 602, if the subtraction result is negative, 1 is added to the subtraction result and set in the song movement counter, and the song corresponding to the program key that was just operated is added.
No. is stored in the M (1, φ) position memory in the RAM as the current song number, and if the program key number just operated is the first song, the search mode is canceled and the program mode routine PRO20 is entered. If the currently operated program key number is other than the first song, processing 604 is immediately executed to move to the PRO20 position of the program mode routine. Further, the disk search routine in the ROM of the microcomputer is as shown in FIG. In other words, it remembers that it is in disk search mode, sets the end counter, sets the B counter, clears the WORKing counter, and
Clear M(2,6) position memory in RAM,
Determine whether it is a 30cm record, remember that it is a 30cm record, and store it in RAM.
Store the data that the distance from the left to the first song is 0 in the position data memory in M(2,
6) Add 1 to the position memory and move the tone arm motor forward while keeping the turntable stopped.If it is not a 30cm record, immediately move the tone arm motor forward while keeping the turntable stopped. 701 is executed. Following this process 701, it is determined whether the lid is open or closed, and if the lid is open, the process moves to the iNiTAL position of the initial mode routine, and if the lid is closed, it is determined whether or not the end of the record has been reached, and the record is If it is the end, process 7 described later
05, if the record is not at the end, the key input is read, repeat key input is processed, it is determined whether or not the disk search mode is selected, and if the disk search mode is selected, the white (start) key is operated. If the reverse (stop) key has been operated, it will memorize the start command.
Clear the repeat flag of the M (φ, 6) position memory in RAM and start the initial mode routine.
It moves to the RETRN2 position, and if it is not operated, it executes a process 702 that moves to the beginning of process 704, which will be described later. Continuing to process 702, it is determined whether a program key has been operated or not, and if it has been operated, input processing is performed for that program key, and if it has not been operated, it is stored that the program key was not operated this time, and the next step is to If the reverse (stop) key has been operated, it is determined whether or not the reverse (stop) key has been operated, and if so, the data indicating the program order and each flag of the program key are cleared, the start command, repeat command, and program mode are cleared, and the program is Turn off all display elements for
If the program key is not operated, a process 703 is executed which immediately moves on to the next process 704. Following process 703, the position is detected and it is determined whether the tone arm has advanced a certain distance or not. If it has not advanced, the process moves to the beginning of process 702. If it has advanced, the inter-song pulse is detected and the inter-song pulse is detected. If there is no inter-song pulse, the process moves to the beginning of process 702, and if there is an inter-song pulse, 1 is added to the M (2, 6) position memory, and whether the addition result is 12 or not. If it becomes 12, it is M.
(2, 6) Subtract 1 from position memory and process 70
2, if it does not reach 12, stores the song width data in the position data memory, clears the working counter, determines whether or not it is in the disk search mode, and if it is in the disk search mode, goes to step 702. First, a process 704 is executed to proceed to the next process 705 if it is not in the date search mode. If it is the end of the record in process 702 or if it is not the disk search mode in process 704, the tone arm motor is stopped, the disk size is determined, and it is determined whether or not the disk search mode is in effect. If it is not in disk search mode, it moves to the AUTO2 position of the auto mode routine, and if it is in disk search mode, it recognizes that the inter-track data has been stored once, processes the number of reserved songs, cancels disk search mode, and resets the tone arm. A process 705 for rotating the motor in the reverse direction is executed. Following this process 705, it is determined whether the tone arm is in the rest position, and if it is not in the rest position, it is determined whether the lid is open or closed, and if it is open, it moves to the INITAL position of the initial mode routine, and the lid is opened. If it is closed, reads the key input, intermittents whether it is a program key, performs program key input processing if it is a program key, remembers that it was not operated this time if it is not a program key, Next, it is determined whether or not the forward (start) key has been operated, and if it has been operated, the start command is memorized, and it has been determined whether or not the reverse (stop) key has been operated, and if it has been operated, the program order is stored. It clears all the data and status flags, performs the repeat key input process, and returns to the beginning.Meanwhile, if it is at the rest position, the tone arm motor is stopped and a check is made to see if a start command has been given. If a start command has been given, it moves to the REFRAN position of the standby mode routine, and if a start command has not been given, it moves to the standby mode routine REFRAN position.
A process 706 of moving to the STBY position is executed. Further, the search mode routine in the ROM of the microcomputer is as shown in FIG. That is, following the determination result of the reverse (stop) key in process 501 in the play loop routine, the raising and lowering state of the tone arm is determined,
If it is down, turn up the queuing, read the key input, judge whether the reverse (stop) key has been operated, and if it has not been operated, cancel the repeat command and return to the RETRN2 position of the initial mode routine. If it is up, processing 801 is executed to immediately move on to the next processing.
Following this process 801, it is determined whether the tone arm is at the rest position, and if it is at the rest position, it is determined whether the current song number is 1, and if it is not 1, a repeat command is issued in process 801. Move on to cancellation, 1
If so, stop the tone arm motor,
Processing 802, which moves to RE8 of the same routine, is executed.
In this step 802, if the tone arm is not in the rest position, it is determined whether or not it is in the program mode, and if it is not in the program mode, it is determined whether or not it is a 30cm disc, and if it is a 30cm record, it immediately moves to the next process; In program mode, it is determined whether or not the tone arm is within the sound groove of the record, and if it is within the sound groove, it immediately moves to the next process, and if the tone arm is not within the sound groove or the tone arm is If it is not on the record, processing 803 is executed which moves on to the tone arm motor stop processing of processing 802 described above. Following process 803, the search mode is recognized, the tone arm motor is reversely rotated, the tone arm is memorized to advance in the reverse direction, the position is detected, and a display table corresponding to the programmed song currently being played is displayed. A process 804 is executed to reduce points from the child and move to the PLAY position of the play loop routine. Further, following the judgment result of the forward (start) key in process 501 in the play loop routine, the cueing hold command is canceled, the up/down state of the tone arm is judged, and if it is down, the cueing is brought up, and the key input , determines whether or not the forward (start) key has been operated, and if it has not been operated, gives a start command, relights all display elements corresponding to the pre-programmed track, and enters the initial mode. routine
The process moves to the RETRN2 position, and if the tone arm is up, immediately executes process 805 to proceed to the next process. Following this process 805, it is determined whether or not it is the end of the record, and if it is the end of the record, the process moves to process 802 to stop the tone arm motor, and if it is not the end of the record, it is determined whether or not it is in the program mode. If it is program mode, it determines whether it is the end of the song or not.
If it is the end of the song, the process moves to step 802 to stop the tone arm motor, and if it is not the end of the song, the search mode is recognized, the tone arm motor is rotated in the forward direction, and the tone arm moves in the forward direction. of the same routine.
Processing 806 of moving to RE8 is executed. Therefore, in this record player, the program automatically detects the song interval on the record disc 42 by the song interval detection device 20, and automatically moves the tone arm device 18 to the beginning of the song on the record disc 42 by the action of the microcomputer 71. Demonstrates song selection function. The opto-sensor as the song interval detection device 20 is of a type that detects the number of songs and the song position in conjunction with the running mechanism of the arm at a position apart from the mounting part of the tone arm and the cartridge, so that the cartridge is compatible. Furthermore, by making it possible to adjust the offset sensor, the dropping position of the tone arm device 18 can be arbitrarily adjusted. This program automatic song selection function is such that when the record disc 42 is set on the turntable 16 and the program key is pressed, the tone arm device 18 will move once to the inner circumference of the record disc 42, and at that time, the tone arm device 18 will move to the inner circumference of the record disc 42, and at that time select the song that is linked to the tone arm device 18. The interval detection device 20 reads the number of songs and the song position on the record disc 42,
When the start key is pressed, the tone arm device 18 plays the programmed songs in the order in which the keys were pressed. For example, if you set the program keys in the order of 2, 5, 3, 1, 4 and press the start key, you can select the 2nd track, 5th track, etc.
Play the first song, then the third song, then the first song, then the fourth song. During this performance, the display element for displaying the number of songs provided corresponding to the program key blinks, so that it is possible to confirm which song is currently being played. Furthermore, the display element for displaying the program number corresponding to the program number set by the program key lights up, so that the program program number in the current program can be confirmed. However, for example, if you set up a record disc with only 6 songs recorded on it, 7, 8,
Even if program keys 9 and 10 are pressed, the light-emitting elements for displaying the track number corresponding to those program keys do not light up and are not programmed. All contents of the program once set are canceled by pressing the stop key. Also, it is linked with other repeat keys, and if you link this repeat key, for example, the second song,
It has a program repeat function that repeatedly plays the 5th song, 3rd song, 1st song, and 4th song in the programmed order. This program repeat operation can be confirmed by the display element for repeat lighting up, and when the repeat key is pressed again, the program repeat function is canceled. If you want to play only the third song repeatedly, press the program key 3 and link the repeat key to play only the third song. To cancel a program key, pressing the stop key cancels all programs, but if you press the program key again before pressing the start key, only the program by that program key is canceled. It also has an intermittent cue function that allows you to play one of the multiple programmed songs first. for example,
After programming 2, 5, 3, 1, 4, if you want to skip other songs from the 2nd song and skip to the 4th song while playing, press program key 4 again. , 1 can be skipped and the performance can be started from the fourth song. In other words, if you press the program key of the song you want to listen to while playing a program, you can jump to the previously programmed song and play it. This intermittent cueing function can only be performed for pieces of music that have been programmed once, and the function is not performed for pieces of music that have not been programmed. It also has an inter-song cue function that allows you to cue the beginning of the programmed song that is currently being played. For example, in programs such as the 2nd, 5th, 3rd, 1st, and 4th songs, in the middle of the 3rd song currently being played (at this time, the display element corresponding to program key 3 is flashing), By pressing the program key 3 again, the player can return to the beginning of the selected song. After the performance of this song (the third song) is finished, the program can be played in the order of the first and fourth songs programmed in advance. It also provides an inter-song search function that allows the tone arm device 18 to move forward and backward between the programmed songs currently being played. For example, in programs such as the 2nd, 5th, 3rd, 1st, and 4th songs, in the middle of the 3rd song currently being played (at this time, the display element corresponding to program key 3 is flashing), By continuing to press the start key or stop key, the tone arm device 18 can be moved forward or backward between songs of a programmed song during play, allowing the tone arm device 18 to be played from a desired position in the song. After the performance of the songs based on this inter-song search function is completed, the program can be performed in the order of the first and fourth songs programmed in advance. The automatic program selection function, program repeat function, inter-song cue function, inter-song cue function, and inter-song search function are functions that can only be activated by operating the program key, and do not operate the program key. When the other start, stop, repart, and cueing operation keys are operated, the normal auto lead-in function, search function, cue function, auto stop function, and repeat function are activated. By the way, as shown in Fig. 14, the song selection method for this record player is to sweep a reflective opto-sensor over the record once before playing to detect the song interval, rather than reading the absolute position from the reference position. Then, the distance between songs, that is, the sound groove width, is digitized using a screwdriver and a photocoupler, and the width of the song is stored in the memory (disc search routine). Then, when the target song, which is the first song to start playing, and the instruction to start playing are given (standby routine), the lead-in between songs is started, and this operation is performed using a reflective opto-sensor. The interval between songs on the record surface is detected, and the target song is accessed (FIG. 8c).
When it is detected that the beginning of the target song has been reached, the width data of the song to be played is read from the memory, the song width counter is reset, and preparations are made to detect the performance end position (see Figure 8). b, c) Drop the stylus at the tip of the tone arm between the tracks on the record surface. The end of a song is recognized by counting position pulses with a song width counter for position detection and comparing them with the song width data in memory, and based on this recognition result, the tone arm is led out (Figure 10). ). For example, when playing only the third song on the record, a reflective opto-sensor is used to detect the song interval from the rest position, the number of song gaps is counted, and the lead-in is performed at the third song. After moving to the performance state of the third song, the position pulses are counted and the position detection count corresponds to the song width data of the third song. For example, when the count reaches 233, it recognizes the end of the song and moves on to the next lead-out operation. As described above, according to the present invention, the signal from the song interval detection means is counted to lead-in to an arbitrary song, and the lead-in is performed using the data of the storage means that stores the distance between the songs. Even if you make a mistake in counting the position pulse while playing, when you move on to the next song, the position counter will be initialized and the error will not accumulate.
Furthermore, since the end of a song is detected by the position detecting means, it is possible to provide a record player that can select songs unaffected by ambient light.

[Brief explanation of the drawing]

Part 1 is an external perspective view showing an embodiment of the record player of the present invention, Fig. 2 is an external perspective view of the player when the lid is opened, Fig. 3 is an enlarged configuration diagram of the main parts of the player, and Fig. 4 5 is a system block diagram of the player, and FIGS. 6 to 14 are flowcharts for explaining the operation of the player. 19... Tone arm device, 20... Song interval detection device, 39, 40, 41... Position detection section.

Claims (1)

[Claims] 1 A track interval detection means for detecting a track interval, a position detection means for detecting the position of the tone arm, and the length of each song obtained by sweeping the track interval detection means over a record prior to performance. A storage means for storing distance data between songs, and a lead-in to an arbitrary song by counting signals from the inter-song detection means, and a length of the arbitrary song stored in the storage means. 1. A record player comprising a music selection performance control means for comparing distance data representing a lead-in position with position data from a lead-in position obtained by a position detection means in a performance state, and performing a lead-out when they match.