JPS6049992B2 - VTR control device - Google Patents

Description

[Detailed description of the invention]

The present invention relates to operation control of a VTR. Conventionally, the CTL pulses on a tape have been counted and the operation of the VTR has been controlled based on the counted value.For example, when searching for the beginning of an arbitrary part of a tape, the number of CTL pulses up to that part is counted. When set, CTL pulses are counted in the fast-forward state, and when this value matches the above-mentioned setting value, the tape is stopped or the normal playback state is started. 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 a plurality of 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 of these segments are counted. This method measures the value and performs control based on this count value. Using a so-called microcomputer, the above-mentioned count value is stored in memory, and by specifying the number assigned to each segment, that segment can be controlled. This allows you to find the beginning of a scene. Furthermore, missing portions are provided in the above-mentioned CTL pulse at intervals of j segments, and the CTL counter is corrected using these missing portions and data in the memory. Hereinafter, an embodiment of the present invention will be explained with reference to the drawings. By the way, this embodiment as a whole performs the following control. That is, the recorded content on the tape is divided into a maximum of 63 segments, and each segment is assigned a number from 1 to 63 (segment number). A segment memory for 6 minutes is provided, and the 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, a program memory for 8 addresses is provided, and by specifying an arbitrary segment number according to the desired playback order, the corresponding segment data is read from the segment memory, and these segment data are reproduced in the specified order. are stored at each address. 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. Further, when a cue is operated during the search or repeat mode, the count value of the CTL pulse at that point (cue point) 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 an arbitrary time, data in the cue memory (cue 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 at 5 o'clock is read out again, that segment is located, and playback is resumed. Also, if any 4 segment numbers are specified and a search operation (interruption) is performed during search or repeat mode, the segment data corresponding to the specified number is read from the segment memory, and the segment is cue
C) 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 cueing. 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. 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 there. Further, 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. When the tape is loaded, the tape is first rewound, and when the rewind reaches the beginning, it enters the playback state, the played audio signal is inversely converted, the data is read into the segment memory, and when the reading is finished, it is re-recorded. The tape is rewound, and when it reaches the end, it is stopped. Also, a two 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 count value of the CTL pulse is replaced with the value at the end of the segment data. This corrects errors in count values due to dropouts during the process. As is well known, the CTL counter may count more than it actually does due to noise, or when there is a sudden change in the tape running system, such as when changing from playback mode to rewind mode, the CTL counter may
There is a drawback that the sliding movement of the TL head is not proper, which causes the count to be lower than in practice. Therefore, if the CTL count is continuously counted over each segment, counting errors will accumulate and accurate cueing will not be possible. Therefore, a place where no CTL is recorded is provided between each segment, and when the absence of the CTL is detected, the CTL count value at least at the beginning of each segment is replaced with data stored in the memory (RAM). There is. In this way, since the CTL count value is corrected for each segment, errors will not accumulate and a correct count value will always be obtained. Furthermore, clock signals are counted to perform time measurement in timer mode. A timer memory for one area is also provided, and two addresses are paired to store the start and end times (timer data) of the timer operation. In the timer record mode, first, timer data l (start) at the first 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 entered. At the same time, the count value of the CTL pulse 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, C at this time
If the TL pulse count value is the first in the program memory,
It is stored in the part corresponding to the end of the segment of the address.
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 a cassette type V
It is configured as a remote control device for TR. 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 CPU11 are written, and a random access memory (RAM) for storing data. ) 13, an input/output circuit 14, etc. And CPUll, ROMl2, RAMl3
are connected by an address bus line 15, a data bus line 16, and a control bus line 17, respectively. Further, the CPU 11 and the input/output circuit 14 are connected by a data bus line 15 and a control bus line 15. Note that these are composed of one chip LSI. Further, a time base generator 2 is connected to the CPUll. Further, an input/output circuit 14 is connected to the keyboard 3 and the display device 4. Here, the keyboard 3 consists of 20 number and function push buttons as shown in the figure. 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. Input/output circuit 14 through 32
supplied to Further, the display device 4 is provided with two 5-digit number display sections, and colon display sections 4c, 4d, 4e, and 4f are provided between every two digits from the bottom of each display section 4a and 4b, and three other numeric display sections are provided. Function display sections 4g, 4h, and 41 are provided. Then, the same five-phase clock signal as the row line of the keyboard 3 described above is supplied to each digit of the number display portions 4a and 14b.
Data signals from the input/output circuit 14 are supplied through decoder circuits 41 and 42 for each number display section 4a and 4b,
Each digit is displayed in a time-divided manner. Further, a control signal from the input/output circuit 14 is supplied to each colon 7 and the function display sections 4c to 41 through a line 43. Furthermore, the input/output circuit 14
is connected to the VTR 5. Here, input/output circuit 14 and VT
The following connection line is provided between R5 and R5.
9 First, an audio signal is supplied from the input/output circuit 14 to the VTR 2 through a line 21, a control signal for tape transport (stop, run, rewind, fast forward) of the VTR 5 is supplied through a line 22, and a control signal for audio dubbing is supplied through a line 22. , recording control signals, pause control signals, etc. are on line 2.
Supplied through 3. ■The CTL signal is supplied from the TR5 to the input/output circuit 14 through the line 24, and the audio signal is supplied through the line 24.
5, and a signal indicating the state of tape transport is supplied via line 26, a signal indicating that a cassette is installed, a signal indicating that remote control is prohibited, a signal for determining the recording method, and an indication that the tape has been rewound to the leading edge. Signals etc. are line 2
Supplied through 7. Of these, the audio signal lines 21 and 25 are shared by a single lead wire for input and output by using a switch circuit 28. Furthermore, by using a coupling circuit 29, the tape transport control signal line 22 and the display signal line 26 share their input and output through a single lead wire. Furthermore, Figure 2 shows RAMl
3 shows the address structure. Reference numeral 51 is a segment memory area in which six addresses from 0 to 6 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. Reference numeral 53 is a time memory area in which addresses of one hat from 0 to 1 are provided, and 16 (eight times) timer data are stored. A program pointer area 54 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. Reference numeral 55 is a timer pointer, which is composed of a 4-bit register and can be used at any address (
0~! 15) is stored. 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. Further, 58 is a CTL counter area for counting CTL pulses, and 59 is a timer counter area for counting clock pulses. In addition, temporary or registers used for calculations, various flag registers, etc. are provided. 4, and the following program is stored in ROM12. The flowchart in Figure 3 below (
The explanation will be given according to the flowchart. In addition, in the figure, alphabetical symbols mean that the same alphabetic characters are consecutive. In the figure, when the power is turned on in step [1], the CPU 11 and the like are reset in step [2], and a standby time (2.) is provided until the VTR 2 starts up in step [3]. After that, in step [4], the counters 58, 5 of RAMl3
9 is reset to 0, and in step [5], the flag register of the RAM and the like are preset to the initial state. Further, in step [6], it is determined whether or not a tape cassette is attached. If the cassette flag F1 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, take an additional step.

At [9], a determination 7 is made as to whether or not the cassette flux is 1. When the lower flag is 1, the process proceeds to step [8]. Also, when the lower flag is O, the cassette flag F1 is set to 1 in step [10],
At step [100], a data reading routine is executed. This data reading routine (step [1
00)) is programmed as shown in the flowchart of FIG. That is, in step [101], the VTR 5 is placed in a rewinding state. Further, in step [102], it is determined whether the tape is at the leading edge position. If the tip has not been reached, it is further determined in step [103] whether or not the stop button (S'IOP) 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 it is at the tip position in step [102],
In step [104], the VTR 5 is put into a playback state, and the segment data recorded on the audio track at the leading end of the tape is played back and transferred to the RAM 13. Further, in step [105], it is determined whether the data transfer is completed. If the data transfer is not completed, it is further determined in step [106] whether two times have elapsed since the start of reproduction. If the data transfer is not completed, the process returns to step [105] and the operation is repeated. Further, when the data transfer is completed in step [105], the entire apparatus is put into a control system based on segment instructions in step [107], and the CTL flag F2 is set to 0. Then, in step [108], the VTR 5 is brought into a rewinding state. Further, in step [109], it is determined whether the tape has been rewound at the leading end. If the rewinding is not completed, step [1]
09] and the operation is repeated. If rewinding has been completed, the VTR 5 is brought to a halt in step [110], and the process proceeds to step [8] in FIG. Also, when the stop button was pressed in step [103], ■TR5 is brought to a stopped state in step [111],
In step [112], the entire device is put into a control system based on the conventional CTL instruction, the CTL flag F2 is set to 1, and the third
The process proceeds to step [8] in the figure. Also, when 2!8 elapses in step [106], it is a case that the specified data has not been recorded at the leading edge of the tape, and in this case, in step [113], the control system is set based on the CTL instruction, and the CTL flag F2 is set. It is set to 1 and the process proceeds to step [108]. Then, the tape is rewound to the leading edge, brought to a stopped state, and the process proceeds 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 lower is 1 or not. When flag lower 3 and flag F4 are both O, step [
11). Also under the flag. , F4 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. That is, in step [201], it is determined whether the CTL flag F2 is 1 or not, and when the flag F2 is 1, the process proceeds to step [202]. Further, when the flag F2 is 0, further step [203
] to lower the search stop flag. It is determined whether or not is 1. When flag F3 is 1, step [20
4]. Further, when the flag bottom is 0, it is determined in step [205] whether the queue search flag F6 is 1 or not, and when this flag F6 is 1, the top flag F7 is further set to 1 in step [206]. A determination is made as to whether or not. When the flag F7 is 1, the data of the cue point in the cue memory 56 is transferred to the temporary memory of the calculation section in step [207], and the process proceeds to step [202]. If the lower flag is 0, the data at the end of the segment in the queue memory 56 is temporarily transferred in step [208], and the process proceeds to step [202].
Also, if flag F6 is 0 in step [205], the interruption search flag is set to 0 in step [209]. is 1 or not, and under this flag. When is 1, it is further determined in step [210] whether or not the top flag is 1. When the flag F7 is 1, the interrupt memory 57 is stored in step [211].
The data at the beginning of the segment in the segment memory 51 at the address specified by is temporarily transferred and the process proceeds to step [202]. When the flag F7 is 0, the data at the end of the segment in the segment memory 51 at the address specified in the interruption memory 57 is temporarily transferred in step [212], and the process proceeds to step [202]. Further, when the flag F8 is O in step [209], it is determined whether the top flag F7 is 1 or not in step [213]. And when flag F7 is 1, step [
214], the data at the beginning of the segment in the program memory 52 at the address specified by the program pointer 54 is temporarily transferred and the process proceeds to step [202]. Also, if flag) bottom is 0, step [21
5], 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. Further, in step [202], the 5 count value of the CTL counter 58 is transferred to register Z for calculation, and in step [216], it is determined whether or not the temporary contents match the contents of register Z. If they do not match, take another step [217
], a determination is made as to whether the search play flag F9 is 1 or not, and the flag is lower. When is 1, the process proceeds to step [218]. Further, when the flag F9 is O, the contents of the temporary and the contents of the register Z are further compared in magnitude in step [219]. When the content of register Z is larger, the VTR 5 is put into a rewinding state at step [220] and the process proceeds to step [218]. If the contents of register Z are smaller, the VTR 5 is put into fast forward mode at step [221] and the process 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. Then, when the lower flag is 1, an additional step [22
3], it is determined whether the CTL flag F2 is 1 or not, and the flag is lowered. When is 0, the top flag lower is set to 0 in step [224], and the search play flag lower is set. is set to 1 and the process proceeds to step [225]. Also step [2
23] and the CTL flag F2 is 1, step [22
6], the search flag F3 is set to 0, the search play flag F9 is set to 0, and the process proceeds to step [225].
Further, in step [225], the timer search flag Fl
A determination is made as to whether O is 1 or not. When the flag FlO is O, the VTR 5 is put into the playback state at step [227] and the process proceeds to step [218]. Further, when the flag FlO is 1, step [22
8], the VTR 5 is brought to a stopped state, the search flag F3 is set to 0, and the process proceeds to step [218]. Further, when the top flag F7 is O(7)- in step [222], the search play flag F, is set to 0 in step [229], and further, in step [230], it is determined whether or not the VTR 5 is in fast forward mode. be exposed. If it is not in fast forward mode, step [231. ) to stop the search. is set to 1 and stored in register T. 4 is set and the process proceeds to step [218]. Further, in step [204], it is determined whether the contents of register T are 15 or not. Here, register T is processed by an interrupt in CPUll,
It is increased by 1:, every 0 seconds. And the content is 15
If not, the process proceeds to step [218]. Further, in step [218], it is determined whether the contents of register A are 15 or not. Here, register A, like register T, is processed by four interrupts by CPUll, 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 process proceeds to step [11] in FIG. Also, when the content of register A is 15, step [233
], it is determined whether the search stop flag F5 is 1 or not, and if the flag F5 is 0, the step [11] in FIG.
You can proceed to And below the flag. When is 1, the value of the CTL counter 58 is corrected in step [233] with the segment data at the end of the segment being reproduced at that time, and the process proceeds to step [234]. Further, when the content of the register T is 15 at step [204] and when the VTR 5 is in fast forward mode at step [230], the process proceeds to step [234]. And this step [23
4], ■TR5 is stopped and the search-on flag F is set.
ll is set to O. Further, in step [235], the search stop flag F5 is set to O, and the top flag F7 is set to 1. Further, in step [236], it is determined whether the queue search flag F6 or the interruption search flag F8 is 1 or not. If either the flags F6 or F8 is 1, the queue search flag F6 and the interruption search flag F8 are set to 0 in step "[237], and the process proceeds to step [238].Furthermore, flags F6 and F8 are set to 0. When both are 0, step [
239], the numerical value of the program pointer 54 is incremented by 1, and further, in step [240], it is determined whether the numerical value of the pointer 54 is 8 or not. If the number is not 8, the process proceeds to step [238]. When the value is 8, the value of the pointer 54 is set to O in step [241], and then in step [24
2], it is determined whether the repeat flag F4 is 1 or not. When the 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 FlO is 1, and if it is 0, the process returns to step [218]. When the flag FlO is 1, the search flag F3 and repeat flag F are set to 0 in step [243], and the process returns to step [218]. Also step [242
], if the repeat flag F4 is 0, step [30
0], a clearing routine to be described later is executed. 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 the button is not pressed, the process proceeds to step [12]. Further, when the search button is pressed, it is further determined in step [13] whether or not the cue memory 56 has stored data. Then, when it is stored, the cue search flag F6 is set to 1 in step [14].
, and the process proceeds to step [15]. If no data is stored in the queue memory 56 in step [13], it is further determined in step [16] whether or not data is stored in the interruption memory 57. If the data has been stored, the interruption search flag F8 is set to 1 in step [17], and the process proceeds to step [15]. Further, if the information is not stored in the interruption memory 57 in step [16], the process proceeds to step [15]. and step [
15], the search flag F3 is set to 1, and the search play flag is lowered. is set to O 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 the button is not pressed, the process proceeds to step [18]. Also, if the repeat button is pressed, the step
19], the repeat flag F4 is set to 1, and the search play flag is lowered. is set to O and the process proceeds to step [18]. Further, in step [18], it is determined whether or not the clear button (CL) has been pressed. Then, if the clear button is not pressed, step [20
]. Also, when the clear button is pressed,
Under the clear flag in step [21]. is set to 1 and returns to step [6]. Furthermore, in step [20], press the clear flag F button. is 1 or not, and if it is 0, step [22
]. Further, when 2 is 1 under the flag, a clearing routine is executed at step [310]. This clearing routine (step 310) is programmed as shown in the flowchart of FIG. That is, clear flag Fl2 is set to 0 in step [311].
be made into Furthermore, in step [312], Kyu Search Flak is lowered. Or under the Interruption Search flag. It is determined whether or not is 1. If either the ζ flag F6 or F8 is 1, the process proceeds to step [313], where the queue search flag F6 and the interruption flag F8 are set.
is set to 0 and the process returns to step [6] in FIG. Further, when flags F6 and F8 are both O, step [314
], the search flag F3 and repeat flag F4 are set to O, and in step [315], the timer play flag is lowered. Then, the timer record flag Fl3 is set to 0, and in step [316], the temporary and register Z of the arithmetic unit are cleared, and the process returns to step [6] in FIG. The clearing routine (step [310)] is executed as described above. Furthermore, in step [n], it is determined whether or not a numeric button (0 to 9) has been pressed, and if it has not been pressed, 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, and when it is 1, the process returns to step [6] in FIG. In addition, when the lower flag is 0, it is further determined whether or not the number set in step [323] is correct, that is, whether or not an interruption search is possible with the number of segments stored in the segment memory 51 or less. A determination is made. And if the number is correct, step [324
], the temporary contents are changed to interruption memory 5.
7 and then returned to step [6] in FIG.
If the number is incorrect, an error message (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. O The number setting routine (step [320]) is executed as described above. Further, in step [23], it is determined whether or not the cue button (CU) has been pressed, and if it has not been pressed, the process proceeds to step [24]. Also, if the cue button is pressed, step [330]
The queue setup routine is executed. This queue setting routine (step 330) is programmed as shown in the flowchart of FIG. That is, in step [331], the search flag F3 or the repeat flag is lowered. It is determined whether or not is 1. And under the flag. , F4 is 1, the contents of the program pointer 54 are read out in step [332], and the data at the end of the segment in the program memory 52 at the address specified by the pointer 54 is read out in step [333]. The data is stored in a portion corresponding to the end of the output memory 56, and the process proceeds to step [334]. Further, when flags F3 and F4 are both 0, step [3
35], the portion corresponding to the end of the queue memory 56 is blanked, 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 start 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: the number button 7 is pressed successively after the function button (F) is pressed) is pressed. And when the program button is not pressed, step [
25]. If the program button is pressed, the program flag Fl4 is set to 1 in step [26] and the process returns to step [6]. Further, in step [25], it is determined whether the program flag Fl4 is 1 or not, and if it is O, the process proceeds to step [27]. Further, when flag 4 is 1, a program setting routine is executed at step [400].
, this program settings 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. Then, if the number button is pressed and it is not 4, step [40
2]. Also, when a number button is pressed,
In step [403], the number in flag Fl5 is set to 1, the number of the pressed button is temporarily set, and the process proceeds to step [402]. Further steps [40
2], it is determined whether or not the enter button (ENTER: F-+R) has been pressed. And if the enter button is not pressed, the evening will step [
404]. Further, when the enter button is pressed, it is further determined in step [405] whether or not the timer mode is set. When in timer mode, further step [406] lowers the number in flag,
It is determined whether 5 is 1 or not, and if it is 1, step [
407], the temporary contents are stored in the timer memory 53, the number in flag Fl5 is set to O, and the process proceeds to step [404]. Also step [406]
When flag 5 is 0, the evening contents of the timer memory 53 are temporarily read out, displayed on the numerical display section 4a, and the process proceeds to step [404]. Further, if the timer mode is not set in step [405], it is further determined in step [409] whether the number in flag Fl5 is 1 or not, and if it is 1), the address corresponding to the temporary content is segment memory 5
Data of 1 is stored in the program memory 52, 5 is set to 0 under the number ink, and the process proceeds to step [404]. Further, in step [409], when the flag 5 is 0, the contents of the program memory 52 are temporarily read out and displayed on the numeric display section 4a, and the step [409] is performed.
404). Further, in step [404], it is determined whether or not the end button (END: F→8) has been pressed, and if it has not been pressed, the process returns to step [6] in FIG. Also, when the end button is pressed, step [412
], the program flag 4 is set to 0 and the process returns to step [6] in FIG. The program setting routine (step [400)] is executed as described above. Further, in step [27], it is determined whether or not a pause button (PAUSE) has been pressed. If the pause button is not pressed, step [28
]. Also, when the pause button is pressed,
At step [29], the pause flag Fl6 is set to 1, and the process proceeds to step [28]. Further step [28]
Then, it is determined whether the pause flag 6 is 1 or not, and if it is 0, the process proceeds to step [30]. Further, when flag 6 is 1, a pause routine is executed at step [500]. This pose routine (step [500)] is programmed as shown in the flowchart of FIG. 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, step [50
2]. If it is not in the stopped state, further step [503]
At ①, it is determined whether or not the TR5 is in the playback state, and if it is in the playback state, it is advanced to the steering wheel knob [502]. Then, in step [502], the VTR 5 is put into a pause state, the pause flag Fl6 is set to O, and the process returns to step [6] in FIG. Further, if it is determined in step [503] that the reproduction state is not present, it is further determined in step [504] whether the search flag F3 or repeat flag F4 is 1 or not. If either flag F3 or F4 is 1, the process proceeds to step [30] in FIG. Also flag F3
, F4 are both 0, the pause flag 6 is set to 0 in step [505] and the process proceeds to step [30] in FIG. The pose routine (step [500)] is executed as described above. Furthermore, in step [30], it is determined whether or not the tape inserted into the VTR 5 is at the leading end position. If it is not at the leading end position, the process proceeds to step [31]. Also, when it is at the tip, step [32]
The contents of the CTL counter 58 are set to O in step [3].
You can proceed to 1). Furthermore, 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, step [33]
You can proceed to If the timer record button is pressed, the timer record flag Fl3 is set to 1 in step [34] and the process returns to step [6]. Further step [33]
It is determined whether or not 3 under the timer record flag is 1. If it is 0, the process proceeds to step [35]. Further, when flag 3 is 1, a timer record routine is executed at step [600]. This timer record routine (step [600)) is the 11th
It is programmed as shown in the flowchart in the figure. That is, in step [601] the timer pointer 55
The timer data in the timer memory 53 at the address specified by is temporarily transferred, and the count value of the timer counter 59 is transferred to the register z in step [602]. Furthermore, in step [603], it is determined whether the temporary contents and the contents of register Z match.
If they do not match, the process returns to step [6] in FIG. Furthermore, when the contents of the temporary register and the contents of register Z match, the value of the timer pointer 55 is incremented by 1 in step [604], and then the value of the timer pointer 55 is incremented by 1 in step [604].
5], it is determined whether the pointer 55 has overflowed or not. And when there is an overflow, step [60
6], TR5 is brought to a halt state and step [300]
The clearing routine is executed. If there is no overflow, it is determined in step [607] whether or not 7 is 1 under the timer top flag, and if it is 1, further step [608] is carried out to determine whether the timer record flag
A determination is made as to whether l3 is 1 or not. When flag Fl3 is 1, step [609]
The timer top flag Fl7 is set to 0, the value of the corresponding program pointer 54 is calculated from the value of the timer pointer 55, and the starting end of the segment at the address of the program memory 52 corresponding to this value is set to the CTL counter (at that time). The contents of step 58 are memorized and step [
610], the VTR 5 is put into a recording state, and the process returns to step [6] in FIG. Further, when the timer top flag Fl7 is 0 in step [607], step [611
), the timer 5 flag Fl7 is set to 1, the value of the corresponding program pointer 54 is calculated from the value of the timer pointer 55, and the CTL counter at that time is stored at the end of the segment at the address of the program memory 52 corresponding to this value. The contents of 58 are stored, and the VTR 5 is brought to a halt state in step [612]. Further, in step [613], the VTR 5 is put into the playback state, and in step [614], the elapse of 2 seconds is detected, and in step [615], the VTR 5 is put into the stopped state again, and the process returns to step [6] in FIG. Further step [608]
When the timer record flag Fl3 is 0, the search flag is lowered in step [616]. is set to 1, the value of the timer pointer 55 is increased by 1, and step [617
], the TR5 is put into the playback state and step [6] in Figure 3 is performed.
]. The timer record routine (step [600)] is executed as described above. Furthermore, in step [35], press the timer play button (T6PL).
It is determined whether or not AY:F→l) has been pressed, and if it has not been pressed, the process advances to step [36]. When the timer play button is pressed, the timer play flag is lowered in step [37]. is set to 1 and returns to step [6]. Further, in step [36], it is determined whether the timer play flag FlO is 1 or not.
If it is 0, the process proceeds to step [38]. Further, when the flag FlO is 1, a timer play routine is executed in step [700]. This timer play routine (step 700) is programmed as shown in the flowchart of FIG. That is, in step [701], the search on flag Fll is
It is determined whether or not is 1. When the flag Fll is O, step [702]
Under the search on flag, 1 is set to 1, and the search flag F
, is set to 1 and the process returns to step [6] in FIG. If the flag F3 is 1 in step [701], it is further determined in step [703] whether the search flag F3 is 1, and if it is 1, the search flag F3 in FIG. Tipu [6]
will be returned to. Further, when the flag F3 is O, a timer record routine is executed in step [600]. As described above, the timer play routine (step [700)]
is executed. Furthermore, in step [38], press the data write button (WRIT).
It is determined whether or not E:F→9) has been pressed, and if it has not been pressed, the process proceeds to step [39]. Further, when the data write button is pressed, a data write ≦ routine is executed in step [800]. This data writing routine (step [800]
) is programmed as shown in the flowchart of FIG. That is, in step [801], the VTR 5 is put into a rewinding state, and in step [802], it is determined whether the tape is at the leading edge position or not. And until the tip position is not reached, this step [802
] is repeated. Also, when it is at the tip position, step [803]
The VTR 5 is put into an audio dubbing state, and the contents of the segment memory 51 are converted into an audio signal and supplied to the audio input terminal of the VTR 5. Further, in step [804], it is determined whether or not data write has been completed, and this step [804] is repeated as long as it has not been completed. Also, when data writing is completed, step [
805], the VTR 5 is placed in a rewinding state. Further, in step [806], it is determined whether or not the tape is at the leading edge position 7, and this step [806] is repeated until the tape is not at the leading edge position. When the VTR 5 is at the leading end position, the VTR 5 is brought to a halt in step [807] and the process proceeds to step [39] in FIG. As described above, the data writing routine (step [800)] is executed. Further step [39
] It is determined whether the stop button has been pressed or not. If the stop button has been pressed, the VTR 5 is brought to a halt state in step [40] and the process returns to step [6]. If the stop button is not pressed, the process proceeds to step [41]. At this step [41], press the fast forward button (FF)
It is determined whether or not has been pressed, 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 returns to step [6]. Also, if the fast forward button is not pressed, step [43]
You can proceed to At this step [43], press the rewind button (R
It is determined whether or not EW) has been pressed, and if it has been pressed, the VTR 5 is put into a rewind state in step [44], the top flag lower is set to 1, and the process returns to step [6]. . Also, if the rewind button is not pressed, step [45
]. At this step [45], press the drive button (PL).
It is determined whether or not AY) has been pressed, and if it has been pressed, the VTR 5 is put into a running state in step [46], the top flag F7 is set to 0, and the process returns to step [6]. Also, if the run button is not pressed, step [6]
]. The above programs are stored in the ROM12. Therefore, in this device, when the switch is turned on, the device is brought to an initial state in steps [2] to [5]. Normally, 4-8, 8→C in Figure 3. C-[F], [
The program is running on the main route F]-3. Then, when the stop button, fast forward button, rewind button, and run button are pressed, steps [39], [41), [43], [45]
They are detected in steps [40], J[42],
At [44] and [46], TR5 is put into its respective operating state. Also, when the pause button is pressed, it is detected in step [27], and the pause flag Fl6 is set to 1 in step [29].
be made into Then, when the lower flag 6=1 is detected in step [28], the VTR 5 is put into a pause state in step [500]. Note that in step [500], step [5
01), [503], the stopped state or running state of the VTR 5 is detected, and only in these cases, the step, [502]
is put into a pause state. In addition, in a fast forward state or a rewind state other than these, the pause flag Fl6 is set to 0 in step [505] to prevent a pause state. Further, in step [504], the search or repeat mode is detected, and at that time, the pause flag Fl6 is kept at 1 even in the fast forward or rewind state, and is set in the pause state when the machine next stops or moves. 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 F is pressed in step [26].
l4 is set to 1. If flag 4=1 is detected in step [25], a program is set in step [400].
That is, in step [400], when a segment number is pressed with the number button, it is detected in step [401], and in step [403], the number of the pressed button is temporarily set, and the number in flag Fl5 is set. is set to 1. Furthermore, when the enter button is pressed, it is detected in step [402], and the data in the segment memory 51 at the address corresponding to the number temporarily set in step [410] is stored in the program memory 52, and the number input Flag Fl5 is set to O. Then, when the number button is pressed again, the data of that segment is stored in the program memory 52 in the same manner, 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, this is detected in step [404], and the lower program flag 4 is set to 0 in step [412].
When the search button is pressed in this state, step [1]
This is detected in step 1), and the search flag F3 is set to 1 and the search play flag F is set to O in step [15]. Also, when the repeat button is pressed, it is detected in step [12] and the repeat flag is lowered in step [19]. is set to 1, and the search play flag F9 is set to 0. When flag F3=1 or flag F4=1 is detected in step [8], reproduction according to the program memory 52 is performed in step [200]. That is, step [20
0], the top flag F7 is 1 in the initial state.
, the search stop flag F5 is set to 01, and the content of the program pointer 54 is set to O. Then, in step [213], flag F7=1 is detected, and in step [21a], 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 in step [216], the contents of the CTL counter 58 are compared with the data at the start of the first segment. If they do not match, the magnitude relationship between them is detected in step [219], and TR5 is rewound or fast-forwarded in the direction of matching in step [220] or step [221]. Further step [2
32], the search stop flag F5=0 is detected and the route is returned to the main route. When these match, top flag F7=1 is detected in step 0 [222], top flag F7 is set to 0 and search play flag F9 is set to 1 in step [224], and V
TR5 is put into play and the first segment is played back to the main route. In this state, the top flag F7 is set to O, so flag F7=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 moved temporarily in step [216]. It is compared with the contents of counter 58. If they do not match, the search play flag F=1 is detected in step [217], and the route is returned to the main route. When these match, the top flag F7=0 is detected in step [222], the search play flag F9 is set to O in step [229], and the search stop flag F5 is set to 1 in step [231]. Furthermore, flag F5=1 is detected in step [232], the VTR 5 is stopped in step [234], top flag F7 is set to 1 and search stop flag F5 is set to O in step [235], and step [239] The contents of the program pointer 54 are incremented by one. Then, in step [232], search stop F5=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], which is detected in step [240], and the content of the program pointer 54 becomes 8 in step [240].
41), the contents of the program pointer 54 are set to 0. In the repeat mode, this is detected in step [242] and the program is repeated from the beginning. In the search mode, the operation is cleared in step [310]. Note that in step [310], step [31
4] under the search flag. Then, the repeat flag F4 is set to O, and the contents of the temporary register 5 and register Z are set to 0 in step [316]. Furthermore, in this apparatus, if a missing part of a CTL pulse of 2 seconds or more is provided at the interval between segments of the tape to be loaded, in the search mode or repeat mode, step 4 [21
8], the missing portion is detected. That is, register A is normally reset to 11 by the CTL pulse, and is incremented by 1 every 0.5 seconds after the end of the segment and at the aforementioned dropout. When the contents of register A become 15 two seconds later, this is detected in step [218]. Here, the contents of the CTL counter 58 should have correctly become the data at the end of the segment just before the CTL pulse is lost. However, the numerical values may be incorrect due to dropouts, etc. Therefore, in step [233], the contents of the CTL counter 58 are replaced with data at the end of the segment, thereby correcting the contents of the CTL counter 58. Furthermore, if the missing part is not detected even after 5.5 seconds have passed after the end of the segment, it is detected in step [204]. That is, in step [231] the search stop flag F
5 is set to 1, and the contents of the register T are reset to 4, and thereafter incremented by 1 every 0 seconds. When the contents of register T become 15 after 5.5 seconds,
Step [218], [233]
234], and the search or repeat program is restarted. Thus, according to the present invention, by specifying the number assigned to each segment, the beginning of that segment can be found, and by providing a missing part of a CTL pulse of a predetermined length at the interval between segments, The contents of the CTL counter can be corrected by detecting the missing portion. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a configuration diagram of an example of the present invention, and FIG.
Figure 3 shows the address structure of random access memory.
Figures 1 to 13 are flowcharts showing programs stored in 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 VTR11 is a central processing circuit, 12 is a read-only memory, 13 is a random access memory, and 14 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 a 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 content 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 a missing part of a CTL pulse of a predetermined length is provided between the segments, and this missing part is detected during playback, and when this detection is made, the random A control device for a VTR, wherein the count value of the CTL pulse is corrected using count value data of the access memory, and programs for these operations are stored in the read-only memory.