JPS6120949B2 - - Google Patents

Description

[Detailed description of the invention]

The present invention relates to VTR operation control. Traditionally, CTL pulses on tape are counted,
The operation of the VTR is controlled based on this value. For example, if you want to cue a certain part of the tape, you can set the number of CTL pulses to reach that part.The CTL pulses will be counted in fast forward mode, and when this number matches the above setting value, the tape will start. The playback is stopped or returned to normal playback mode. However, in this method, when selecting a desired portion, the corresponding numerical value of the CTL pulse must be set each time, and the operation is extremely complicated and requires skill. In consideration of these points, the present invention is designed to facilitate operations such as cueing. That is, in the present invention, the recorded content on the tape is divided into multiple segments (parts) depending on the continuity of the content, etc., and the CTL pulses from the tape tip corresponding to the start and end of each segment are counted. This method measures the value and performs control based on this count value, using a so-called microcomputer to store the above count value in memory and specifying the number assigned to each segment. This allows you to locate the beginning of a segment. Furthermore, the count value of CTL pulses at an arbitrary point is stored, and this point is cued up as desired during playback, and then returned to the original segment after playback. An embodiment of the present invention will be described below with reference to the drawings. By the way, this embodiment performs the following control as a whole. This means that the recorded content on the tape is divided into up to 63 segments, each segment containing one
A number (segment number) of ~63 is attached.
And segment memory for 63 addresses is provided,
Count values (segment data) of CTL pulses at the start and end of each segment are stored at each address in the order of the segment number. In addition, program memory for address 8 is provided,
By specifying an arbitrary segment number according to a desired playback order, the corresponding segment data is read from the segment memory, and these segment data are stored at each address in the specified order. In the search mode, first, the segment data at the first address of the program memory is read out, the segment is located at the beginning, and playback is started. Further, when this playback reaches the end of the segment, the playback is stopped. At the same time, the segment data at the next address in the program memory is read out, that segment is cued up, and playback is resumed. This operation is performed sequentially at eight addresses in the program memory, and when the operation associated with the eighth address is completed, the program is stopped. In the repeat mode, the same operations as in the search mode are performed, and when the operation related to the eighth address is completed, the operation is repeated again from the first address. Furthermore, if a cue operation is performed during search or repeat mode, that point (queue point)
The count value of CTL pulses and the end data of the segment data of the segment being reproduced are stored in the cue memory. When a search operation is performed at any time, data in the cue memory (queue data) is read out, the cue point is located, and playback is started. Furthermore, when this playback reaches the end of the segment or when a clear operation is performed, the playback is stopped. At the same time, the segment data in the program memory that was being played back when the search operation was performed is read out again, that segment is located, and playback is resumed. Also, if a search operation (interruption) is performed with an arbitrary segment number specified during search or repeat mode, the segment data corresponding to the specified number is read from the segment memory, and the segment is moved to the beginning. and playback begins. Furthermore, when this playback reaches the end of the segment or when a clear operation is performed, the original segment is cued up and playback is resumed, as in the case of a queue. Furthermore, if a fast-forward operation is performed during search or repeat mode, the normal fast-forward state is entered, and when this fast-forward reaches the end of the segment, the segment data at the next address in the program memory is read, and the segment data is read out. The beginning of the segment is cued and the segment is played. Further, if a rewind operation is performed during the search or repeat mode, the normal rewind state is entered, and when the rewind reaches the beginning of a segment, playback is resumed from that point. Furthermore, the segment data is converted into an audio signal according to a predetermined standard, and this audio signal is recorded on an audio track at the leading end of the tape. Then, when the tape is installed, the tape is first rewound,
When rewinding reaches the beginning, the tape enters the playback state, the played audio signal is inversely converted and the data is read into the segment memory, and when reading is complete, the tape is rewound again, and when the rewinding reaches the end, the tape enters the stop state. be made into Also, a 2 second gap is provided in the CTL pulse between segments on the tape. When the playback reaches the end of the segment, this missing portion is detected, and at the time of detection, the CTL pulse count value is replaced with the end value of the segment data. This corrects errors in count values due to dropouts during the process. Further, the clock signal is counted to perform time measurement in the timer mode. In addition, timer memory for 16 addresses is provided, and 2
Each address is paired and the start and end times (timer data) of the timer operation are stored. In the timer record mode, the timer data (start) at the first address of the timer memory is first read out, and when this data and the count value of the clock signal match, the recording state is entered. At the same time, the CTL pulse count value at this time is stored in the portion of the program memory corresponding to the beginning of the segment at the first address. When the recording state is entered, the timer data (end) at the second address of the timer memory is read out, and when this data and the count value of the clock signal match, the recording state is brought to a halt state. At the same time, the CTL at this time
The pulse count value is stored in the program memory at the first address corresponding to the end of the segment. This operation is performed in sequence at 16 addresses in the timer memory, that is, eight timer records are performed, and the count values of the CTL pulses at the beginning and end of each time are stored in the program memory. In the timer play mode, the operation start time is stored in each odd-numbered address of the timer memory, and the data of the segment to be played is stored in the program memory. During operation, the device is first put into a search mode, the first segment is cued up, and the device is stopped. At the same time, the timer data at the first address of the timer memory is read out, and when this data and the count value of the clock signal match, reproduction is started. Furthermore, when this reproduction reaches the end of the segment, the second segment is cued and stopped. At the same time, the timer data at the third address of the timer memory is read out. This operation is performed in order at address 8 of the program memory and each odd-numbered address of the timer memory, and eight timer plays are performed. These operations are performed in the following embodiment. FIG. 1 is a configuration diagram, and this example is configured as a remote control device for a cassette type VTR. In the figure, 1 indicates a control circuit. This control circuit 1 is a so-called microcomputer, and includes a central processing circuit (CPU) 11, a read-only memory (ROM) 12 in which operating programs for the CPU 11 are written, and a random access memory (RAM) for storing data. ) 13, an input/output circuit 14, etc. And CPU11,
The ROM 12 and RAM 13 are connected by an address bus line 15, a data bus line 16, and a control bus line 17, respectively. Also CPU
11 and the input/output circuit 14 are connected by a data bus line 15 and a control bus line 16. Note that these are composed of one-chip LSI. Further, a time base generator 2 is connected to the CPU 11. Further, an input/output circuit 14 is connected to the keyboard 3 and the display device 4. Here keyboard 3 is 20 as shown in the figure.
It consists of numbers and function push buttons. These pushbuttons are connected in a 5x4 matrix, and a 5-phase clock signal from the input/output circuit 14 is supplied to each row line through the line 31, and a signal obtained on each column line by the operation of the pushbutton is connected to the line 31. The signal is supplied to the input/output circuit 14 through 32. In addition, the display device 4 is provided with two 5-digit number display sections, and colon display sections 4c, 4d, 4e,
4f, and three other function display sections 4g, 4
h, 4i are provided. And the number display section 4a,
A five-phase clock signal, which is the same as the row line of the keyboard 3 described above, is supplied to each digit of the keyboard 3, and a data signal from the input/output circuit 14 is supplied to each numeric display section 4a, 4b through the decoder circuits 41, 42. ,
Each digit is displayed in a time-divided manner. Further, a control signal from the input/output circuit 14 is supplied through the line 43 to each colon and function display section 4c to 4i. Further, an input/output circuit 14 is connected to the VTR 5. Here, the following connection line is provided between the input/output circuit 14 and the VTR 5. First, an audio signal is supplied from the input/output circuit 14 to the VTR 2 through a line 21.
5 control signals for tape transport (stop, run, rewind, fast forward) are supplied through line 22;
Audio dubbing control signals, recording control signals, Bose control signals, etc. are supplied through the line 23. A CTL signal is also supplied from the VTR 5 to the input/output circuit 14 through a line 24.
an audio signal is provided through line 25;
An indication signal indicating the tape transport status is supplied through line 26, and an indication signal indicating that a cassette is installed, an indication signal indicating that remote control is prohibited, a recording system determination signal, an indication signal indicating that the tape has been rewound to the leading edge, etc. are supplied through line 27. Supplied through. Of these, audio signal lines 21 and 25 are connected to a switch circuit 28.
By using , input and output are shared by a single lead wire. Also, line 2 of the tape transport control signal
By using a coupling circuit 29, the input and output of the display signal line 2 and the display signal line 26 are shared by a single lead wire. Furthermore, FIG. 2 shows the address structure of the RAM 13. 51 is a segment memory area,
63 addresses from address 0 to address 62 are provided, and 63 segment data are stored. 52 is a program memory area, which is provided with eight addresses from 0 to 7, and stores 8 segment numbers and segment data. 53 is a time memory area, which is provided with 16 addresses from 0 to 15, and stores 16 (eight times) timer data. Reference numeral 54 denotes a program pointer area, which is composed of a 4-bit register, and stores a numerical value specifying an arbitrary address (0 to 8) in the program memory area 52. 55 is a timer pointer, which is composed of a 4-bit register.
Any address (0 to 0) in the time memory area 53
15) is memorized. Reference numeral 56 is a queue memory area, which is provided with an address of 1 and stores queue data. Reference numeral 57 is an interruption memory area in which the segment number specified in the interruption search is stored. 58 also counts CTL pulses
CTL counter area 56 is a timer counter area for counting clock pulses. In addition, temporary or registers used for calculations, various flag registers, etc. are provided. The following program is stored in the ROM 12. The process will be explained below according to the flowchart shown in FIG. Note that in the figure, alphanumeric characters mean consecutive alphabets. In the figure, when the power is turned on in step [1], the CPU 11 etc. are reset in step [2], and a waiting time (2.5 seconds) is provided until the VTR 2 starts up in step [3]. After that, in step [4], the counters 58 and 59 of RAM13 are
is reset to 0, and in step [5], the RAM flag register etc. are preset to the initial state. Further, in step [6], it is determined whether or not a tape cassette is attached. If it is not installed, the cassette flag _F1 is set to 0 in step [7], and the process proceeds to step [8]. Also, if it is installed, there are additional steps.

At [9], it is determined whether the cassette flag _F1 is 1 or not. When the flag _F1 is 1, the process proceeds to step [8]. Also, flag F ₁ is 0
, set the cassette flag F ₁ in step [10].
is set to 1, and a data reading routine is executed at step [100]. This data reading routine (step [100]) is programmed as shown in the flowchart of FIG. That is, in step [101], the VTR 5 is put into a rewinding state. Further, in step [102], it is determined whether or not the tape is at the leading end. If the tip has not been reached, it is further determined in step [103] whether or not the stop button (STOP) on the keyboard 3 has been pressed.
If the stop button is not pressed, the process returns to step [102] and the operation is repeated. Also, when the tape is at the leading end position in step [102], the VTR 5 is put into playback mode in step [104], and the segment data recorded on the audio track at the leading end of the tape is played back to the RAM.
Further, in step [105], it is determined whether or not the data transfer is completed. If the data transfer is not completed, it is further determined in step [106] whether 25 seconds have elapsed since the start of playback. If the data transfer is not completed, the process returns to step [105] and the operation is repeated. Furthermore, when the data transfer is completed in step [105], the entire device is put into a control system based on segment instructions in step [107], and the CTL flag F ₂
is set to 0. And in step [108] VTR5
is put into rewind state. Further, in step [109], it is determined whether the tape has been rewound at the leading end. If the rewinding is not completed, the process returns to step [109] and the operation is repeated. When the rewinding is completed, the VTR 5 is stopped at step [110], and the process proceeds to step [8] in FIG. If the stop button was pressed at step [103], the VTR 5 is brought to a halt state at step [111], and the entire device is switched to the conventional CTL mode at step [112].
A control system is established based on instructions, and CTL flag F ₂ is set to 1.
Then, the process proceeds to step [8] in FIG. Also, if 25 seconds have elapsed in step [106], this means that the specified data has not been recorded at the leading edge of the tape, and in this case, in step [113]
A control system is established based on CTL instructions, and the CTL flag F ₂
is set to 1 and proceeds to step [108]. Then, the tape is rewound to the leading edge, brought to a stopped state, and proceeded to step [8] in FIG. The data reading routine (step [100]) is executed as described above. Further, in step [8], it is determined whether the search flag _F3 or the repeat flag _F4 is 1 or not. When flags F ₃ and F ₄ are both 0, the process proceeds to step [11]. flag again
When either F ₃ or F ₄ is 1, a search/repeat routine is executed at step [200]. This search repeat routine (step [200]) is programmed as shown in the flowchart of FIG. In other words, at step [201], the CTL flag _F2 is set to 1.
It is determined whether the flag F2 is 1 or not, and if the flag _F2 is 1, the process proceeds to step [202]. flag again
When _F2 is 0, it is further determined in step [203] whether the search stop flag _F5 is 1 or not. When the flag _F5 is 1, the process proceeds to step [204]. Also, when flag _F5 is 0, step [205]
In step [206], it is determined whether the key search flag _F6 is 1 or not, and when this flag _F6 is 1, it is further determined in step [206] whether the top flag _F7 is 1 or not. When the flag _F7 is 1, the data at the queue point in the queue memory 56 is transferred to the temporary memory of the arithmetic unit in step [207], and the process proceeds to step [202]. Also, when the flag _F7 is 0, the queue memory 56 is set at step [208].
The data at the end of the segment is temporarily transferred and the process proceeds to step [202]. Furthermore, if the flag _F6 is 0 in step [205], it is determined in step [209] whether or not the interruption search flag _F8 is 1, and if this flag _F8 is 1, a further step is performed. At [210], it is determined whether the top flag _F7 is 1 or not.
When the flag _F7 is 1, the data at the beginning of the segment in the segment memory 51 at the address specified in the interruption memory 57 is temporarily transferred in step [211] and the process proceeds to step [202]. When the flag _F7 is 0, the segment memory 51 at the address specified in the interrupt memory 57 is processed in step [212].
The data at the end of the segment is temporarily transferred and the process proceeds to step [202]. If the flag _F8 is 0 in step [209], it is determined whether the top flag _F7 is 1 or not in step [213]. If the flag _F7 is 1, the program pointer 5 is set at step [214].
of the program memory 52 at the address specified in 4.
The data at the beginning of the segment is temporarily transferred and the process proceeds to step [202]. flag again
When _F7 is 0, the data at the end of the segment in the program memory 52 at the address specified by the program pointer 54 is temporarily transferred in step [215]. Further, in step [202], the count value of the CTL counter 58 is transferred to register Z for calculation, and in step [216], it is determined whether the temporary contents and the contents of register Z match. If they do not match, it is further determined in step [217] whether the search play flag _F9 is 1 or not, and if the flag _F9 is 1, the process proceeds to step [218]. When the flag _F9 is 0, the temporary contents and the contents of the register Z are further compared in magnitude in step [219]. If the content of register Z is larger, the VTR 5 is put into a rewinding state at step [220] and the program proceeds to step [218]. Also, if the contents of register Z are smaller, step [221]
is put into fast forward mode and proceeds to step [218]. If the temporary contents match the contents of register Z in step [216], it is determined in step [222] whether the top flag _F7 is 1 or not. When the flag _F7 is 1, it is further determined in step [223] whether the CTL flag _F2 is 1, and when the flag _F2 is 0, the top flag _F7 is set to 0 in step [224]. Then, the search play flag _F9 is set to 1 and the process proceeds to step [225]. Also, in step [223], the CTL flag is set.
When F ₂ is 1, search flag is set at step [226].
_F3 is set to 0, search play flag _F9 is set to 0, and the process proceeds to step [25]. Further, in step [225], it is determined whether the timer search flag _F10 is 1 or not. When the flag _F10 is 0, the VTR 5 is put into a playback state at step [227] and the program proceeds to step [218]. Also, if flag _F10 is 1, step [228]
Then, the VTR 5 is stopped, the search flag _F3 is set to 0, and the process proceeds to step [218]. Also, if the top flag _F7 is 0 at step [222], the search play flag is set at step [229].
_F9 is set to 0, and then VTR5 is set at step [230].
A determination is made as to whether or not the current state is in fast forward mode. If it is not in the fast forward state, the search stop flag _F5 is set to 1 in step [231], 4 is set in register T, and the process proceeds to step [218]. Also, in step [204], the contents of register T are set to 15.
A determination is made as to whether or not. Here, register T is
Interrupts are handled by CPU 11, and 1 every 0.5 seconds
Increased by increments. If the content is not 15, proceed to step [218]. Furthermore, in step [218], the contents of register A are
No. 15 is determined. Here register A
is processed by the CPU 11 in the same way as register T, is incremented by 1 every 0.5 seconds, and is reset to 11 every time a CTL pulse is detected. If the contents of register A are not 15, the third
Proceed to step [11] in the figure. Also, when the contents of register A are 15, it is determined in step [233] whether the search stop flag _F5 is 1 or not.
If flag _F5 is 0, go to step [11] in Figure 3.
You can proceed to And when flag F ₅ is 1,
At step [233], the value of the CTL counter 58 is corrected with the segment data at the end of the segment being reproduced at that time, and the process proceeds to step [234]. Also, in step [204], the contents of register T are set to 15.
Also when the VTR 5 is in fast forward mode at step [230], the program proceeds to step [234]. Then, in this step [234], the VTR 5 is brought to a stopped state, and the search-on flag _F11 is set to 0.
Also, in step [235], search stop flag _F5
is set to 0, and the top flag _F7 is set to 1. Furthermore, in step [236], the key search flag is
F ₆ or Interruption Search Flag F ₈
It is determined whether or not is 1. and flag
If either F ₆ or F ₈ is 1, the queue search flag F ₆ and the interruption search flag F ₈ are set to 0 in step [237], and the process proceeds to step [238]. If flags F ₆ and F ₈ are both 0, the numerical value of the program pointer 54 is incremented by 1 in step [239], and it is further determined whether the numerical value of the pointer 54 is 8 or not in step [240]. If the number is not 8, the process proceeds to step [238]. When the number is 8, the value of the pointer 54 is set to 0 in step [241], and further, it is determined whether the repeat flag _F4 is 1 or not in step [242]. When flag _F4 is 1, the process proceeds to step [238]. Further, in this step [238], it is determined whether or not the timer play flag _F10 is 1, and if it is 0, the process returns to step [218]. Also, when flag _F10 is 1, search flag _F3 is set in step [243].
Then, the repeat flag _F4 is set to 0 and the process returns to step [218]. Also, in step [242], repeat flag _F4 is set to 0.
In this case, a clearing routine to be described later is executed at step [300]. The search repeat routine (step [200]) is executed as described above. Further, in step [11], it is determined whether or not the search button (S) has been pressed. If it is not pressed, it will proceed to step [12]. Further, when the search button is pressed, it is further determined in step [13] whether or not the data is stored in the cue memory 56. If the memorization is done, the key search flag is set in step [14].
_F6 is set to 1 and the process advances to step [15].
Furthermore, if the data is not stored in the queue memory 56 in step [13], it is further determined in step [16] whether or not the data is stored in the interruption memory 57. If the memory has been stored, the interruption search flag _F8 is set to 1 in step [17] and the process proceeds to step [15]. Further, if no data is stored in the interruption memory 57 in step [16], the process proceeds to step [15]. Then, in step [15], search flag _F3 is set to 1.
, the search play flag _F9 is set to 0, and the process proceeds to step [18]. Further, in step [12], it is determined whether or not the repeat button R has been pressed. If it is not pressed, it will proceed to step [18]. Also, when the repeat button is pressed, the repeat flag _F4 is set to 1 in step [19], and the search play flag is set to 1.
_F9 is set to 0 and the process proceeds to step [18]. Further, in step [18], it is determined whether or not the clear button CL has been pressed. If the clear button is not pressed, the process advances to step [20]. If the clear button is pressed, the clear flag _F12 is set to 1 in step [21] and the process returns to step [6]. Furthermore, in step [20], clear flag F ₁₂ is set to 1.
A determination is made as to whether the value is 0 or not, and if it is 0, the process proceeds to step [22]. Further, when the flag _F12 is 1, a clearing routine is executed at step [310]. This clearing routine (step [310]) is programmed as shown in the flowchart of FIG. That is, the clear flag _F12 is set to 0 in step [311]. Further, in step [312], it is determined whether the queue search flag _F6 or the interruption search flag _F8 is 1 or not. If either flag F ₆ or F ₈ is 1, the process advances to step [313] and the key search flag is set to 1.
_F6 and interruption flag _F8 are set to 0 and the process returns to step [6] in FIG. When flags F ₆ and F ₈ are both 0, the search flag F ₃ and repeat flag F ₄ are set to 0 in step [314], and the timer play flag F ₉ is set to 0 in step [315].
Then, the timer record flag _F13 is set to 0, and in step [316], the temporary and register Z of the arithmetic section are cleared, and the process returns to step [6] in FIG. The clear routine (step [310]) is executed as described above. Further, in step [22], it is determined whether or not a numeric button (0 to 9) has been pressed, and if it has not been pressed, the process proceeds to step [23]. Further, when the number button is pressed, a number setting routine is executed at step [320]. This number setting routine (step [320]) is programmed as shown in the flowchart of FIG. That is, the number of the button pressed in step [321] is temporarily set. Note that the numerical settings are performed by shifting sequentially from the lowest order. Further, the temporary contents are displayed on the numerical display section 4a. Further, in step [322], it is determined whether the CTL flag _F2 is 1 or not.
will be returned to. When the flag _F2 is 0, it is further determined whether the number set in step [323] is correct or not, that is, whether or not an interruption search is possible with the number of segments stored in the segment memory 51 or less. will be held. If the numbers are correct, the temporary contents are stored in the interruption memory 57 at step [324], and the process returns to step [6] in FIG. If the number is incorrect, an error display E is displayed on the number display section 4a in step [325], the temporary contents are cleared, and the process returns to step [6] in FIG. The number setting routine (step [320]) is executed as described above. Further, in step [23], it is determined whether or not the queue button CU has been pressed, and if it has not been pressed, the process proceeds to step [24]. Further, when the cue button is pressed, a cue setting routine is executed at step [330]. This queue setting routine (step [330])
is programmed as shown in the flowchart of FIG. That is, in step [331], it is determined whether the search flag _F3 or the repeat flag _F4 is 1 or not. If either flag F ₃ or F ₄ is 1, the contents of the program pointer 54 are read out in step [332], and the contents of the program memory 52 at the address specified by the pointer 54 are read out in step [333]. Data at the end of the segment is stored in a portion of the queue memory 56 corresponding to the end, and the process proceeds to step [334]. If flags F ₃ and F ₄ are both 0, the portion corresponding to the end of the queue memory 56 is blanked out in step [335] and the process proceeds to step [334]. Then, in step [334], the contents of the CTL counter 58 are stored in the portion corresponding to the starting end of the queue memory 56, and the process is returned to step [6] in FIG. The queue setting routine (step [330]) is executed as described above. Further, in step [24], it is determined whether or not a program button (PRGM: number button 7 is pressed successively after function button F is pressed) is pressed. If the program button is not pressed, the program advances to step [25]. If the program button is pressed, the program flag _F14 is set to 1 in step [26] and the process returns to step [6]. Furthermore, in step [25], program flag F _{14 is set} .
It is determined whether or not is 1, and if it is 0, the process proceeds to step [27]. Further, when the flag _F14 is 1, a program setting routine is executed at step [400]. This program setting routine (step [400]) is programmed as shown in the flowchart of FIG. That is, in step [401], it is determined whether or not a numeric button has been pressed. If the number button is not pressed, the process advances to step [402].
When a number button is pressed, the number in flag _F15 is set to 1 in step [403], the number of the pressed button is temporarily set, and the process advances to step [402]. Further, in step [402], it is determined whether or not the enter button (ENTER: F→R) has been pressed. If the enter button is not pressed, the process advances to step [404]. Further, when the enter button is pressed, it is further determined in step [405] whether or not the timer mode is set. In the timer mode, it is further determined in step [406] whether the number in flag _F15 is 1 or not. If it is 1, the temporary contents are stored in the timer memory 53 in step [407], and the number The infrag _F15 is set to 0 and the process proceeds to step [404]. Also step [406]
When the flag _F15 is 0, the contents of the time memory 53 are read out temporarily and the number display section 4a is read out.
will be displayed and you can proceed to step [404]. If the timer mode is not set in step [405], it is further determined in step [409] whether the number in flag _F15 is 1 or not, and if it is 1, the address corresponding to the temporary content is determined in step [410]. The data in the segment memory 51 is stored in the program memory 52, the number in flag _F15 is set to 0, and the process proceeds to step [404]. If the flag _F15 is 0 in step [409], the contents of the program memory 52 are temporarily read out, displayed on the numeric display section 4a, and the process proceeds to step [404]. Furthermore, at step [404], press the end button (END:F).
→It is determined whether or not 8) has been pressed, and if it has not been pressed, the process returns to step [6] in FIG. If the end button is pressed, the program flag _F14 is set to 0 in step [412] and the process returns to step [6] in FIG. The program setting routine (step [400]) is executed as described above. Furthermore, press the pause button (PAUSE) at step [27].
A determination is made as to whether or not the button has been pressed. If the pause button is not pressed, the process advances to step [28]. Also, when the pause button is pressed,
At step [29], the pause flag _F16 is set to 1, and the process proceeds to step [28]. Furthermore, in step [28], pause flag F ₁₆ is set to 1.
A determination is made as to whether the value is 0 or not, and if it is 0, the process proceeds to step [30]. When the flag _F16 is 1, the pause routine is executed at step [500]. This Bose routine (step [500]) is programmed as shown in the flowchart in Figure 10. That is, in step [501] it is determined whether or not the VTR 5 is in a stopped state, and if it is in a stopped state, the step [500] is programmed as shown in the flowchart in FIG. If the VTR 5 is not in the stopped state, it is further determined in step [503] whether or not the VTR 5 is in the playback state, and if it is in the playback state, the step is moved to step [502].Then, in step [502] The VTR 5 is put into a pause state, the pause flag _F16 is set to 0, and the process returns to step [6] in Figure 3.If it is not in the playback state at step [503], the search flag F is set at step [504]. ₃ or repeat flag F ₄ is 1. If either flag F ₃ or F ₄ is 1, the process proceeds to step [ ₃₀ ] in FIG. When both _F4 are 0, the pause flag _F16 is set to 0 in step [505] and the third
Proceed to step [30] in the figure. The pose routine (step [500]) is executed as described above. Further, in step [30], it is determined whether or not the tape inserted into the VTR 5 is at the leading edge position, and if it is not at the leading edge position, the process proceeds to step [31]. Also, when it is at the tip position, the CTL counter 5 is set in step [32].
The contents of 8 are set to 0 and the process proceeds to step [31]. Further, in step [31], it is determined whether or not the timer record button (T.REC: F→3) has been pressed, and if it has not been pressed, the process proceeds to step [33]. If the timer record button is pressed, the timer record flag _F13 is set to 1 in step [34] and the process returns to step [6]. Further, in step [33], it is determined whether the timer record flag _F13 is 1 or not, and if it is 0, the process proceeds to step [35]. Also, flag F ₁₃ is 1
In this case, the timer record routine is executed at step [600]. This timer record routine (step [600] is programmed as shown in the flowchart in Fig. 11. In other words, in step [601], the timer data in the timer memory 53 at the address specified by the timer pointer 55 is temporarily transferred. Then, in step [602], the count value of the timer counter 59 is transferred to register Z.Furthermore, in step [603], it is determined whether or not the temporary contents match the contents of register Z. If they do not match, the process returns to step [6] in Figure 3. If the contents of the temporary and register Z match, the value of the timer pointer 55 is incremented by 1 in step [604]. Further, in step [605], it is determined whether or not the pointer 55 has overflowed.If it has overflowed, step [606]
The VTR 5 is stopped and the clearing routine in step [300] is executed. If there is no overflow, it is determined in step [607] whether the timer top flag _F17 is 1 or not, and if it is 1, it is further determined in step [608] whether the timer record flag _F13 is 1 or not. A determination is made. When the flag _F13 is 1, the timer stop flag _F17 is set at step [609].
is set to 0, the value of the corresponding program pointer 54 is calculated from the value of the timer pointer 55, and the program memory 52 corresponding to this value is
The starting end of the segment at the address of
The contents of the CTL counter 58 are stored, the VTR 5 is put into a recording state at step [610], and the process returns to step [6] in FIG. Also, in step [607], the timer stop flag is set.
When _F17 is 0, the timer top flag _F17 is set to 1 in step [611], and the corresponding program pointer 5 is set from the value of the timer pointer 55.
A value of 4 is calculated, and the contents of the CTL counter 58 at that time are stored in the end portion of the segment at the address of the program memory 52 corresponding to this value, and the VTR 5 is brought to a halt state in step [612]. Further, in step [613], the VTR 5 is put into a playback state, and in step [614], the elapse of 2 seconds is detected, and in step [615], the VTR 5 is put into a stop state again, and the process returns to step [6] in FIG. Further, when the timer top flag _F13 is 0 in step [608], the search flag _F3 is set to 1 in step [616], the value of the timer pointer 55 is incremented by 1, and the VTR 5 is in the playback state in step [617]. The process is then returned to step [6] in FIG. The timer record routine (step [600]) is executed as described above. Further, in step [35], it is determined whether or not the timer play button (T.PLAY: F→1) has been pressed, and if it has not been pressed, the process proceeds to step [36]. If the timer play button is pressed, the timer play flag _F10 is set to 1 in step [37] and the process returns to step [6]. Furthermore, in step [36], the timer play flag is set.
It is determined whether _F10 is 1 or not, and if it is 0, the process proceeds to step [38]. Further, when the flag _F10 is 1, a timer play routine is executed at step [700]. This timer play routine (step [700]) is programmed as shown in the flowchart of FIG. In other words, the search on flag is set at step [701].
A determination is made as to whether F ₁₁ is 1 or not. and flag
When _F11 is 0, the search-on flag _F11 is set to 1 in step [702], the search flag _F3 is set to 1, and the process returns to step [6] in FIG. Furthermore, if the flag _F11 is 1 in step [701], it is further determined whether the search flag _F3 is 1 in step [703], and if it is 1, the process returns to step [6] in FIG. It can be done. When the flag _F3 is 0, a timer record routine is executed at step [600]. As described above, the timer play routine (step [700]) is executed. Further, in step [38], it is determined whether or not the data write button (WRITE: F→9) has been pressed, and if it has not been pressed, the process advances to step [39]. Further, when the data write button is pressed, a data write routine is executed at step [800]. This data writing routine (step [800]) is programmed as shown in the flowchart in Figure 13. That is, in step [801] the VTR 5 is put into the rewind state, and in step [802] the tape is brought to the leading position. Then, this step [802] is repeated until the tip position is reached.When the tip position is reached, the VTR 5 is placed in the audio dubbing state in step [803]. The content of the segment memory 51 is converted into an audio signal and supplied to the audio input terminal of the VTR 5.Furthermore, in step [804], it is determined whether or not data writing has been completed. This step [804] is repeated.Also, when the data writing is completed, the VTR 5 is put into the rewinding state in step [805].Furthermore, in step [806], the tape is at the leading edge position. This step [806] is repeated until the tip position is reached. When the tip position is reached, the VRR 5 is stopped in step [807] and the third The program advances to step [39] in the figure. The data writing routine (step [800]) is executed as described above. Further, in step [39], it is determined whether or not the stop button has been pressed. When the stop button is pressed, the VTR 5 is stopped at step [40] and the process returns to step [6]. When the stop button is not pressed, the process proceeds to step [41]. This step [41] It is determined whether the fast forward button (FF) has been pressed or not, and if it has been pressed, the VTR 5 is put into fast forward mode at step [42], the top flag _F7 is set to 0, and the process proceeds to step [6]. Also, if the fast forward button is not pressed, it advances to step [43]. In this step [43], it is determined whether or not the rewind button (REW) has been pressed. In step [44], the VTR 5 is put into the rewind state, the top flag _F7 is set to 1, and the process returns to step [6].If the rewind button is not pressed, the process proceeds to step [45]. In this step [45], it is determined whether or not the run button (PLAY) has been pressed. If it has been pressed, the VTR 5 is put into a running state in step [46], and the top flag _F7 is set to 0. The process returns to step [6].If the run button is not pressed, the process returns to step [6]. The programs described above are stored in the ROM 12. Therefore, in this device, when the switch is turned on, the device is brought to the initial state in steps [2] to [5]. And usually →, → in Figure 3
The program is being executed on the main routes , →, and →. Then, when the stop button, fast forward button, rewind button, and run button are pressed, steps [39], [41], [43],
They are detected in [45], and step [40],
At [42], [44], and [46], the VTR 5 is put into its respective operating state. Also, when the pause button is pressed, it is detected in step [27], and the pause flag is flagged in step [29].
F ₁₆ is set to 1. Then, when the flag F 16 =1 is detected at step [28], the flag F ₁₆ =1 is detected at step [500].
The VTR 5 is put into a pause state. Incidentally, in step [500], a stopped state or a running state of the VTR 5 is detected in steps [501] and [503], and only in these cases, it is put into a pause state in step [502]. In other fast-forward or rewind states, the pause flag _F16 is set to 0 in step [505] to prevent the pause state. Furthermore, the search or repeat mode is detected in step [504], and in that case, the pause flag _F16 remains at 1 even in fast forward or rewind mode, and is set to the pause state the next time the vehicle stops or travels. . Furthermore, reproduction using segment data is performed as follows. First, when the program button is pressed, it is detected in step [24], and the program flag _F14 is set to 1 in step [26]. When flag F ₁₄ =1 is detected in step [25], a program is set in step [400]. That is, when a segment number is pressed using the number button at step [400], it is detected at step [401], and the number of the pressed button is temporarily set at step [403], and the number in flag F is set. ₁₅ becomes 1. Furthermore, when the enter button is pressed, it is detected in step [402], and in step [410], the data in the segment memory 51 at the address corresponding to the temporarily set number is stored in the program memory 52, and the number input Flag _F15 is set to 0. Then, when the number button is pressed again, the data of that segment is stored in the program memory 5 in the same way.
2, and up to eight segment data are stored in the program memory 52. Furthermore, when the end button is pressed after the necessary segment data has been stored, it is detected in step [404],
At step [412], the program flag _F14 is set to 0. When the search button is pressed in this state, it is detected in step [11], and the search flag _F3 is set to 1 and the search play flag _F9 is set to 0 in step [15]. Also, when the repeat button is pressed, it is detected in step [12], and in step [19] the repeat flag _F4 is set to 1 and the search play flag F9 is set _{to 1} .
is set to 0. And flag in step [8]
When F ₃ =1 or flag F ₄ =1 is detected,
At step [200], reproduction according to the program memory 52 is performed. That is, in step [200], in the initial state, the top flag _F7 is set to 1, the search stop flag _F5 is set to 0, and the contents of the program pointer 54 are set to 0. Then, in step [213], flag F ₇ =1 is detected, and in step [214], the data at the beginning of the segment stored at the first address of the program memory 52 is temporarily moved. Further, in step [202], the value of the CTL counter 58 is moved to register Z, and then in step [216]
The contents of the CTL counter 58 are compared with the data at the beginning of the first segment. If they do not match, the magnitude relationship between them is detected in step [219], and the VTR 5 is rewound or fast-forwarded in the direction in which they match in step [220] or [221]. Further, in step [232], the search stop flag F ₅ =0 is detected and the process is returned to the main route. When these match, the top flag F ₇ =1 is detected in step [222], the top flag F ₇ is set to 0 and the search play flag F ₉ is set to 1 in step [224], and the VTR is set in step [227].
5 is put into play and the first segment is played back to the main route. In this state, the top flag F ₇ is set to 0, so flag F ₇ =0 is detected in step [213], the data at the end of the first segment is temporarily moved in step [215], and the data at the end of the first segment is temporarily moved in step [216]. It is compared with the contents of CTL counter 58. If they do not match, the search play flag=1 is detected in step [217], and the route is returned to the main route. When these match, the top flag F ₇ =0 is detected in step [222], the search play flag F ₉ is set to 0 in step [229], and the search stop flag F ₅ is set to 0 in step [231].
is set to 1. Further step [232] flags
F ₅ =1 is detected, the VTR 5 is stopped in step [234], the top flag F ₇ is set to 1 and the search stop flag F ₅ is set to 0 in step [235], and the program pointer 5 is set in step [239].
The contents of 4 are increased by 1. Then, in step [232], search stop F ₅ =0 is detected and the process is returned to the main route. This program is repeated, and now that the contents of program pointer 54 have been incremented by one, the segment at the next address in program memory 52 is played. Furthermore, when this program is executed 8 times, the content of the program pointer 54 becomes 8 in step [239], it is detected in step [240], and the program pointer 54 becomes 8 in step [241].
The contents of 4 are set to 0. In repeat mode, it is detected in step [242] and the program is repeated from the beginning. In search mode, the operation is cleared at step [310]. In addition, in step [310], the search flag F ₃ and repeat flag F ₄ are set in step [314].
is set to 0, and the contents of the temporary and register Z are set to 0 at step [316]. Furthermore, in this device, when the cue button is pressed, it is detected in step [23], and a cue point is set in step [330]. In other words, in step [330], when in search or repeat mode, step [331]
It is detected at step [332], the contents of the program pointer 54 at that time are read out, and at step [333] the contents of the program memory 52 at the address specified by this program pointer 54 are read out.
The data at the end of the segment is stored in queue memory 5.
It is stored in the part corresponding to the end of 6. Further, in step [334], the count value of the CTL counter 58 is stored in the portion of the queue memory 56 corresponding to the starting end. For example, if the search button is pressed after several segments have been played, it will be detected in step [11], and the cue memory 5 will be searched in step [13].
6 is detected, and the queue search flag _F6 is set to 1 in step [14]. Further, in step [15], the search flag _F3 is set to 1 and the search play flag _F9 is set to 0. Then, in step [8], flag F ₃ =1 is detected,
A queue point is detected in step [200]. That is, in step [205], the queue search flag F ₆ =1 is detected, and in step [207], the data at the beginning of the queue memory 56 is temporarily moved. Then, in step [216], the content is compared with the contents of the CTL counter 58, and if they do not match, the VTR 5 is rewound or fast-forwarded in the direction of matching in step [220] or [221]. Furthermore, when these match at the cue point, the top flag _F7 is set to 0 and the search play flag _F9 is set to 1 at step [224], and the VTR 5 is put into the playback state at step [227]. In this state, the top flag F ₇ =0 is detected in step [206], and the end data of the queue memory 56 is temporarily moved and compared with the contents of the CTL counter 58 in step [206]. If these match, the VTR 5 is stopped in step [234], the key search flag F ₆ =1 is detected in step [236], and the flag F ₆ is set to 0 in step [237] to perform normal operation. Returns to search or repeat mode. At this time, since the contents of the program pointer 54 remain the same as before, the segment that was being played when the search button was pressed is located. If the clear button is pressed during playback from the queue point, the process advances to step [310], where the queue search flag F ₆ =1 is detected at step [312], and the process advances to step [313]. with flag
_F6 is set to 0. Therefore, the mode is returned to the normal search or repeat mode, and the segment that was being played when the search button was pressed is cued up in the same way as when the playback by the cue memory 56 ends. Furthermore, if the cue button is pressed when the mode is not search or repeat mode, the part corresponding to the end of the cue memory 56 is blanked out in step [335], and only the count value of the CTL counter 58 at that time is stored in the cue memory in step [334]. 56
is stored in the part corresponding to the start end of. When the search button is pressed at any time, the cue point is cued at step [200], and the CTL flag F ₂ =1 is detected at step [223], and the search flag F ₃ is set to 0. . In this way, according to the present invention, by specifying the number assigned to each segment, it is possible to locate the beginning of that segment, and the count value of the CTL pulse at an arbitrary point is memorized, so that when reappearing, this point can be set as desired. You can cue and then return to the original segment after playing. In other words, while playing a predetermined segment, if you come across a place that you want to see or show again, press the memory key at that point and the CTL count value will be memorized, so that you can watch the predetermined portion as soon as you have finished viewing it. This has the advantage that it is possible to go back to a place you want to see or show again and reproduce the same place by simply pressing the search key.

[Brief explanation of the drawing]

FIG. 1 is a block diagram of an example of the present invention, FIG. 2 is a diagram showing the address structure of a random access memory, and FIGS. 3 to 13 are flowcharts showing programs stored in the read-only memory. 1 is a control device, 2 is a time base generator, 3 is a keyboard, 4 is a display device, 5 is a
VTR, 11 is a central processing circuit, 12 is a read-only memory, 13 is a random access memory, 1
4 is an input/output circuit.

Claims (1)

[Claims] 1. A VTR control device that counts the number of CTL pulses from the leading edge of the tape and performs control based on this count value, which has a central processing circuit, a read-only memory, and a random access memory, and has a central processing circuit, a read-only memory, and a random access memory, By dividing the contents into a plurality of segments, storing data of the count value of the CTL pulse at the start and end of each segment at each address of the random access memory, and specifying the address of the random access memory, Any of the above segments is cued and played, and by operating the count value memory key during playback, the count value of the CTL pulses at that point is memorized, and after that point and other By operating the search key while playing the segment section, the tape is fed to the tape position corresponding to the memorized count value.
A playback operation is performed from this tape position to the end point of the arbitrary segment, the tape is fed from the end point of this segment to the start point of the other segment, and playback is started from that start point; A program for these operations is stored in the read-only memory.
VTR control device.