JPH026032B2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention enables various electrical equipment such as a VTR to start or stop operating after a predetermined time,
Alternatively, the present invention relates to a timer device used to set both the start and end times of an operation.

Conventionally, when setting the operation start time and operation end time using a timer, the operation time is set by moving the pointer or indicator relative to the clock scale, and the operation time is set by moving the pointer or indicator relative to the clock scale and the pointer or indicator. The time set on the timer was displayed regardless of the relative position.

However, if you want to increase the number of times to set,
It is necessary to increase at least the number of guidelines or indicators, and it is also necessary to differentiate the types of guidelines or indicators used depending on the type of program and its start and end times. There was a drawback that it became complicated.

Furthermore, the above-mentioned timer is provided with a mechanism for displaying the current time. It may be considered that this current time display mechanism is composed of, for example, a clock signal generation section that generates a current time signal, and a time display section that displays the current time based on this current time signal. Further, in order to set the display of the current time in such a current time display mechanism to a correct value based on a time signal or the like, it may be considered to provide a time setting switch and an increment switch. In this case, for example, when setting the time, the desired time is displayed by pressing the time setting switch to set the counter of the clock section to an adjustment state, and then pressing the step switch to fast forward the counter. At times, the step switch is returned to its original position so that the desired time is continuously displayed, and then, when the accurate current time known from a time signal or the like matches the desired time, the time adjustment switch is returned to its original position. The time can be set using the .

However, with this method, it is necessary to fast-forward the counter by holding down both the time setting switch and the step switch, and then return only the step switch when the desired time is displayed. It is cumbersome to operate and there is a risk of erroneous operation. It may also be considered to display the desired time on the time display section, but it is difficult to distinguish between the display of the desired time and the display of the current time.
This increases the risk of erroneous operation.

The present invention was invented to correct all of the above-mentioned deficiencies, and in particular, even when there are many operation times to be set, the setting operation is easy and the configuration is simple. In addition, the time setting operation is simple, and the time can be set accurately and reliably.

The timer device of the present invention includes numeric keys _K0 to _K9 for respectively setting an operation time for performing a timer operation and an adjustment time for adjusting the current time;
Time storage memory means (program memory circuit 38, clock preset circuit 69) for storing the operating time and adjustment time set by the numeric keys _K0 to _K9 , and a clock preset circuit 69 for displaying the current time. (clock section 37); time display section (time display section 28) capable of displaying the current time by emitting light; and the time display section is connected to the current time signal generation section. display content selection and supplying the output of the current time signal generating means to the time display means so as to continuously display the current time based on the current time signal from the
When the adjustment time is set in the time storage memory means by the drive circuits 42, 52 and the number keys, the adjustment time signal from the time storage memory means is sent in place of the current time signal. A time display blanking circuit and a flash display circuit 48 are connected to the display content selection/drive circuit so as to supply the time display means via the display content selection/drive circuit and display the adjustment time in blinking light. 49, an operating means operated in the blinking light emitting state, which corrects the contents of the current time signal generating means to the adjustment time set in the time storage memory means, and also controls the time display blanking circuit and the time display blanking circuit. A time adjustment operating means (time setting switch 33) which stops the operation of the flash circuit and supplies the adjusted current time signal from the current time signal generation means to the time display means to continuously display the current time. and.

This configuration allows time to be easily preset.

Next, an embodiment in which the present invention is applied to a VTR will be described.

FIG. 1 is a front view of the operating mechanism of a VTR to which the present invention is applied. Figure 1 shows the operating mechanism shown above.
The VTR 1 has a built-in electronic timer, and can automatically start and end recording operations at preset times. Note that it may be configured so that playback and other operations can be performed automatically, and in this case, the mode may be selected by the recording/playback operation section 4.

The operating mechanism 2 of this VTR 1 includes a timer operating section 3;
Recording/playback operation section 4 and program operation operation section 5
It is equipped with Further, a power switch 22 is provided at the lower left end of the operating section 2, and a tape counter 23 is provided at the upper right end.

The recording/playback operation section 4 in the center of the operation mechanism 2 has a playback button 7, a record button 8, a fast forward button 9, a rewind button 10,
A stop button 11, a pause button 12, and a cassette eject button 13 are provided. Note that these operation buttons 7 to 13 may operate electrical contact switches, and the VTR 1 performs predetermined recording/reproducing operations in response to opening/closing of these contact switches. And these operation buttons 7 to 10 and 12,
Display lamps 7a to 10a and 12a, 13 are provided at the top of 13 to indicate that the operation buttons 7 to 13 have been operated.
a is installed. For VTR1, operation button 7
It operates in response to electrical signals from the opening and closing of switches 1 to 13, and also operates in response to electrical signals from the VTR's built-in program operating section and timer.

The program operation operation section 5 is provided with various operation switches for operating the built-in program operation section. That is, search switches 15, 16
A search switch 15 is used to search in the tape forward direction, and a search switch 16 is used to search in the tape return direction. If the search switch 15 or 16 is pressed after pressing the program search switch 17 of the operating section 5, cueing is performed by detecting the signal recorded at the beginning of each recording band.
When the counter search switch 18 is pressed, cueing is performed using a signal for returning the tape counter 23 to zero count [000]. The repeat switch 19 is for automatically repeatedly reproducing recorded images between the time when the reset button 24 of the tape counter 23 is operated and the time when the repeat switch 19 is operated. In addition, pause switch 2
0 indicates that the VTR is in operation when the program operation section is in operation.
This is to pause (pause) the .

A timer operation section 3 provided on the left side of the recording/playback operation section 4 of the VTR 1 is an operation section for a timer built into the VTR 1, and includes a display section 25 and a key input section 26. The display section 25 includes a time display section 28 for displaying the time, a start/end display section 29 for indicating whether the display on the time display section 28 is the start time or end time of recording, and a channel display section 30. It is completed. And each display section 28~
The front of the 30 is a translucent (dark tone) display panel, and the display panel of the start/end display section 29 shows "REC START" and "REC END".
The characters are printed on the top and bottom of each.

A start time indication lamp 31 and an end time indication lamp 32 are provided behind each of the above characters on the display panel. Also, behind the display panel of the time display section 28 is provided a 4-digit numeric display tube for displaying "hours" and "minutes," and behind the display panel of the channel display section 30, channel numbers are displayed. A two-digit numeric display tube is provided for this purpose. Further, on the right side of the time display section 28, there is provided a time setting switch 33 for setting the current time on the clock section of the timer.

A key input section 26 is arranged below the display section 25. This key input section 26 has numbers 0, 1 to
Numeral key switches K ₀ , K ₁ to _{K 9 corresponding to 9} , channel key switch CH, hour key switch H,
Minute key switch M, clear key switch C, 1st
and second program key switches A and B, and a program cancel key switch PC. Preset indicator lamps 34A and 34B are provided above the program key switches A and B to indicate that a program has been set in the timer.

Further, on the left side of the preset indicator lamps 34A and 34B, a program time over indicator lamp 35 is provided which lights up when the total programmed time exceeds a predetermined reference value. Furthermore, on the left side thereof, there is provided a program inappropriateness indicator lamp 36 that lights up when programs A and B are set to overlap in time.

Next, FIG. 2 is a block circuit diagram of a timer built into the VTR 1. As shown in FIG. 2, the timer mainly includes a clock section 37, a program memory circuit 38, a state control circuit 39, a program time correct/incorrect determination circuit 40, a current time/program time comparison circuit 41, and a decoder/display drive circuit 42. has been done. The clock section 37 is a digital clock consisting of a crystal oscillator, a counter, and a memory. The program memory circuit 38 is a circuit that stores data on the channel start time and end time of each of recording programs A and B, which are set by key operations on the key input unit 26 shown in FIG.
The state control circuit 39 is a circuit for reading input data from the key input section 36, determining and controlling the state of each block of the timer, distributing data to each block, and controlling the sequence of each of these functions.

The program time correctness determination circuit 40 compares the total time programmed in the timer with the recordable time of the loaded cassette tape, and determines whether the program time is appropriate or not.
This circuit determines whether or not there is a time period overlap between two programs A and B. The current time/program time comparison circuit 41 includes the clock section 3
This circuit compares the current time obtained from 7 with the program time stored in the program memory circuit 38, and when the respective times match, provides a recording start signal and an end signal to the VTR. The decoder/display drive circuit 42 includes a key input section 26, a program memory circuit 38, and a clock section 37.
This is a circuit for decoding the data from the decoder into a displayable signal and lighting the numeric display tube of the time display section 28 in FIG. 1 based on this signal.

Next, the program operation of the timer shown in FIG. 2 will be explained based on the flowcharts shown in FIGS. 3 to 6. Note that the diamond boxes in the flowchart indicate decision branching matters, and the square boxes indicate processing matters. Judgment and branching matters are performed by the state control circuit 39 in FIG. 2, and processing matters are performed in each circuit block in FIG. 2 under the control of the state control circuit 39.

First, the state control circuit 39 determines whether program key switch A or B has been operated.
1 and J2 are performed. That is, when key A is pressed, a key input signal is supplied to the state control circuit 39 via the key reading circuit 43 of FIG. 2, and this input generation signal is temporarily stored in the function input memory circuit 45. Along with this, the state control circuit 3
9, it is determined whether program A or B has already been executed J3, J3' (FlagA=1?,
Flag=1? ) is carried out. Then, when you press key A, if FlagA = 1, program A has already been programmed.
is stored, so a check routine L2, which will be described later, is performed for program A. Also
If FlagB=1, program B is already stored, so check routine L2 is performed for program B. If program A has not yet been executed, flip-flop FlagA is set in state control circuit 39 (process P1). Note that if keys A and B are not pressed, the current time/program time comparison routine L1 is performed in the current time/program time comparison circuit 41 shown in FIG.

Next, when FlagA=1, the start time indication lamp 31 of the start/end display section 28 in FIG.
The preset indicator lamp 34A above is turned on. Also, the time display blanking circuit 48 in FIG.
Then, the flash display circuit 49 operates, and the time display on the time display section 28 is branched, and the lamps 31 and 34A flash. Further, the memory for the start time A of the program memory circuit 38 is selected by the memory write circuit 50 of FIG. 2 (process P2). In addition, lamps 31, 34A
The blinking indicates that the program is ready for input.

Next, the channel to be recorded is set.
First, channel numbers are input using the numeric key switches _K0 to _K9 (decision J4). This data is temporarily stored in the numeric input memory circuit 46 via the key reading circuit 41 and the state control circuit 39 shown in FIG. 2 (processing P3). Then channel key switch
When CH is pressed, the state control circuit 39 makes a judgment J5, and the channel data stored in the numeric input memory circuit 46 is transferred to the program A of the program memory circuit 38 via the memory write circuit 50.
channel memory. At the same time, the memory readout circuit 51 operates, and the display content selection/
The timing circuit 52 is controlled by the state control circuit 39, and the channel data is displayed on the channel display section 30 via the decoder/display drive circuit 42 (process P4).

Note that even when using the VTR 1 in manual mode by operating the record/playback operation section of the VTR 1 without using the timer, the channel can be specified using the numeric keys K ₀ to _{K 9} .
and channel key CH. In this case, the channel data stored in the program memory circuit 38 in the same manner as described above is displayed on the channel display section 30 and is also supplied to the DA converter (not shown) via the memory read circuit 51. Here, the voltage is converted to an appropriate DC voltage and then supplied to the variable capacitance diode of the electronic tuner's tuning circuit.

Next, the program is set by program routine L3, the detailed flowchart of which is shown in FIG. First, when the numeric key switches K ₀ to K ₉ are pressed, the input data is temporarily stored in the numeric input memory circuit 46 via the key reading circuit 44 and the state control circuit 39 shown in FIG. 2 based on the judgment J6 of the state control circuit 39. (processing P3). In addition, the number key
If K ₀ to K ₉ are not pressed, the current time/
A program time comparison routine L1 is being performed. Next, when the second digit numeric key K ₀ to K ₉ is pressed,
As a result of decision J5, the input data is stored in the numeric input memory circuit 46 as the second digit number. If the hour key switch H is pressed after the numeric keys _K0 to _K9 , the hour data is sent from the numeric input memory circuit 46 to the state control circuit 33 according to judgment J8, where the hour data is Judgment of suitability J1
0 is performed.

If the time data is appropriate, the "hour" data of the start time of program A is stored in the program memory circuit 38 via the state control circuit 39 and the memory write circuit 50. Furthermore, the flip-flop flag "hour" is set in the state control circuit 39 (process P5). As a result, the memory readout circuit 51 and display content selection/timing circuit 52 shown in FIG. (Process P9). In this case, the flash display circuit 49
The time display is blinking depending on the time. Note that if the hour data is inappropriate, such as "30 o'clock," processing P7 is not performed based on judgment J10, so that the hour data is not stored or displayed. In this case, the operator presses the clear key switch C to clear the data in the numeric input memory circuit 46, and then returns to the program routine L3.
I do.

Next, the process returns to the beginning of the program routine L3, and minute data is input in the same way as the hour data. Minute data has already been input using the numeric keys _K0 to _K9 (judgment J6, processing P5, judgment J7, processing P6), and then when the minute key switch M is pressed,
A judgment J11 is made as to whether the minute data is appropriate. If the minute data is appropriate, the data for the start time of program A is stored in the program memory circuit 38. Also, a flag "minute" is set in the state control circuit (process P8). As a result, the start time of program A is displayed blinking on the time display section. Note that if the minute data is inappropriate, such as "70 minutes," processing P8 is not performed based on judgment J11, so the operator needs to press the clear key C and input the minute data again. be.

Next, in the state control circuit 39, the Flag “time” and
Judgment J12 is made as to whether or not the Flag “minutes” are both 1, and if both are 1, it is approximately 1 as shown in FIG.
After the second time is displayed (process P10), the start time indication lamp 31 is turned off and the end time indication lamp 32 is turned on (flashing). This notifies the operator that data on the end time of program A can be input. At the same time, the time display blanking circuit 48 operates,
The time display of the previously set start time of program A is turned off. The memory for end time A of the program memory circuit 38 is also selected by the memory write circuit 50. In the current time/program time comparison circuit 41, the current time and program time comparison routine L1 shown in FIG.
is always being done.

Next, the end time is set by operating the number key switches _K0 to _K9 , the hour key switch H, and the minute key switch M. Similar to the setting of the start time, this setting is performed by a program routine L3 as shown in FIG. and program routine L3
When this is completed, that is, when the minute key M is pressed and data input is completed, the end time indication lamp 32 is turned off, and the end time display on the time display section 28 is blanked. Also, the flash display circuit 49
is turned off and the preset display lamp 34A is lit continuously. This indicates that the setting of the start time and end time of program A has been completed.

Next, after the time display section 28 is blanked for about 0.2 seconds (process P13), the state control circuit 39
The current time data from the clock section 37 is selected in the display content selection/timing circuit 52 based on a command from the clock section 37. This current time data then passes through the decoder/display drive circuit 42 to the time display unit 2.
8 (process P14).

When the settings for program A are completed, program key A is pressed again to confirm the contents of program A. That is, when key A is pressed (judgment J13),
A check routine L2, the detailed flowchart of which is shown in FIG. 5, is executed. In this case, the check routine L2 may be automatically executed when the settings of the program A are completed.

FIG. 5 is a flowchart of check routine L2. First, when it comes to check routine L2,
Based on a command from the state control circuit 39 shown in FIG. 2, a program time correctness determination circuit 40 compares the program time T _P with the recordable time _TR (tape remaining amount) of the loaded cassette tape. (Judgment J21) If program B has already been set, the total program times T _P and T _R of programs A and B are compared. If T _P > T _R , the program time over indicator lamp 3
5 is lit. Furthermore, a determination J22 is made in the determination circuit 40 as to whether or not there is an overlapping portion between the time periods of the programs A and B. If there is an overlapping portion, the program inappropriateness indicator lamp 36 is lit. If the program time has exceeded or there is an overlapping portion, a check end F/F is set in the state control circuit 39.

If the program time correctness determination circuit 40 determines that the program time is correct, the display of the current time on the time display section 28 is blacked out for about 0.2 seconds (processes P23 and P24). Next, the preset lamp 34A is flashed on and off, and the start time indication lamp 31 on the start/end display section 29 is flashed on and off. At the same time, the channel and start time of program A are displayed blinking. This display is performed for about 1 second (process P26), and then the start time indication lamp 31 is turned off and the time display is blanked (process P27). Approximately 0.2 seconds later (process P28), the end time indication lamp 32 blinks and lights up, and the program A
The end time is displayed blinking (process P29). This display is performed for about one second (process P30), and then the end time indication lamp 32 is turned off and the end time display is blacked out. Furthermore, since the flash display circuit 49 is turned off (process P31), the preset display lamp 34A is lit continuously.

Check routine L2, the details of which are shown in FIG.
When the above operation is completed, the check end F/F of the state control circuit 39 is set (process P32). Then, the program cancel key PC is pressed and at this time the program key A
If is pressed (judgments J32, J34), program A set as described below is canceled (cleared) (process P34). Also, if the cancel key PC is not pressed, about
After 0.2 seconds, the current time is displayed instead of the end time of program A. Thereafter, the current time/program time comparison routine L1 is continued, and the timer is in a functioning state.

Note that the check routine L2 can be inserted into any part of the flowchart of FIG. That is, even during programming, by pressing key A or B, the already programmed time is displayed, so that the program can be set by checking this.

Next, the settings for program B will be explained. First, when you press program key B, judgment J1 in Fig. 3 is executed.
2 (Is FlagB=1?) is performed. If program B has already been set, flip-flop FlagB has been set in the state control circuit 39, so check routine L2 (FIG. 5) for program B is performed (normal check). In addition, if program B has not been set yet, judgment J13 is made as to whether IlagA=1 or not.
is performed, and if program A is set, check routine L2 for program A is performed. That is, when key B is pressed to set program B, the other program A that has already been set is automatically displayed. The setting is made so that the recording times of A and B do not exceed the recordable time. After the check routine L2 is completed, settings for the program B are performed according to the same flowchart as the process P1 and subsequent steps in FIG.

Next, the operation of the current time/program time comparison circuit 41 shown in FIG. 2, that is, the timer operation will be explained. The timer operation is performed based on the flowchart of the current time/program time comparison routine shown in FIG. First, if program A is set, judgment J40 is made since Flag A=1, and then flip-flop Flag Rec A, which is set when the VTR 1 is recording according to the program, is set. A judgment J42 is made as to whether or not this is the case. If Flag RecA=0, the current time t _o and the start time t _s of program A are compared.

When t _o =t _s , the preset display lamp 34A blinks and lights up based on judgment J43, and a recording start signal is sent from the comparator circuit 41 to the VTR 1.
The VTR 1 enters recording mode (process P40). Also, since Flag Rec A is set at this time, the current time _to and end time _te are compared based on decision J42. Then, when program A is executed and t _o = t _e , a stop signal is sent from the comparator circuit 41 to the VTR 1 based on judgment J44.
VTR1 is stopped. At the same time, the preset display lamp 34A, which had been blinking during recording, turns off, and the flip-flop Flag Rec
A and FlagA are reset (process P41).

In this way, the predetermined recording by program A is executed, and then, if program B is set, judgment J41 is made. After judgment J42, the procedure is the same as the execution of program A (J42→J4
3→P40...) Program B is executed. Note that the time zone relationship between programs A and B may not be particularly defined. For example, the time slot for program B may be set before the time slot set based on program A. In this case, if judgments J40 and J41 in FIG. 6 are made in parallel, the earlier of programs A or B will be executed first.

Next, canceling a set program will be explained. As mentioned above, to cancel a program, first check the program contents, and when the check end F/F is set at the end of check routine L2 (Fig. 4) (P3).
This can be done by pressing the program cancel key PC in 2). At this time, the program is canceled only if the key A or B of the program to be canceled is pressed. 7th
Figure A shows only the circuits related to program cancellation of the state control circuit 39. Further, FIG. 7B shows waveforms at various parts in FIG. 7A.

First, when program key A, numeric keys _K0 to _K9 , etc. are pressed to set program A, the input signal of key A is supplied to the set input of Flag A flip-flop 56 via AND gate 54, and this flip-flop Flop 56 is set. Therefore, if you press key A after setting program A,
Since Flag A=1, the input signal of key A is supplied to check routine control circuit 61 through AND gate 58 and OR gate 60. Then, a check routine L2 shown in FIG. 5 is performed, and a check end signal is generated in the check routine control circuit 61. This signal and the key A input signal are supplied via an OR gate 62 and an AND gate 63 to a check termination flip-flop 65, which is set. The output of the check end flip-flop 65, the key A input signal, and the output signal of the Flag A flip-flop 56 are then supplied to an AND gate 66, which outputs the program A.
A clear signal is formed. This clear signal is the second
The signal is supplied to the program memory circuit via the memory write circuit 50 shown in the figure, and program A is canceled. Note that canceling program B is performed in the same manner.

In this way, as shown in Figure 7B, the time point
By pressing program key A at t ₁ , the channel display, start time and end time are displayed by time t ₂ . When this check is completed, the check end F/F is set,
At this time, by holding down the program key A and pressing the cancel key PC, for example at time _t3, a program clear signal A is generated, and the program A is canceled by this signal.

Note that the check termination flip-flop 65 may be in the set state for a predetermined period of time (for example, 2 seconds) after the check routine L2 is completed, and the program may be canceled only if the cancel key PC is pressed during this period. good. Further, the program may be canceled by pressing the cancel key PC at any time after the check is completed.

Next, FIG. 8 is a flowchart for setting the current time in the clock section 28 of the timer shown in FIG. To set the current time, first press the time setting switch 3 next to the time display section 28 shown in FIG.
Press 3. Judgment J50 is then performed in the state control circuit 39, and as a result, processing P51 is performed and the time display blanking circuit 48 is turned on, thereby blanking the time display section 28, and at the same time, the flash display circuit 49 is turned on. turns on. Next, in the same manner as the program routine L3 in FIG. 4, the hour and minute data are stored in the clock preset circuit 69, and the
Both Flag “minutes” become 1 (judgments J51-56,
Processing P52-55). In this state, the clock preset circuit 6 is activated under the control of the state control circuit 39.
Input data is read from the display content selection/timing circuit 52 and the decoder/display drive circuit 4.
2, the input data is displayed blinking on the time display section 28 (process P56).

If both the flag "hour" and the flag "minute" are 1, judgment J57 is made and it is determined that the input is completed. In this state, when the time setting switch 33 is operated again in accordance with the external time signal, the state control circuit 39 makes a judgment J58, and the clock preset circuit 6 is set to the parallel load 70.
An instruction is given to load the hour and minute data stored in the clock section 37 into the clock section 37. Then, the clock section 37 is set to the current time, and at this time, the second reset circuit 71 is operated to correctly reset the second counter (not displayed) of the clock section 37 to 0 seconds. Then, based on judgment J58, the time is displayed on the time display section 28. Note that since the flash display circuit 49 is turned off, the time display becomes a continuous display (process 57).

Note that the timer configured as described above can be a separate timer from the VTR 1, and when the timer is used for a purpose other than that of the above-described embodiment, the timer configured as described above can be changed from the set operation start time to the operation end time. Instead of having the timer turn on only during the operating period up to, the timer may turn off.
In addition, in the above embodiment, two program keys A and B are provided, but there is only one program key, and a combination of this program key and a numeric key (for example, a program key and a numeric key K ₁ or K ₂ ) is used. It is also possible to select a program based on a combination of Further, in the above embodiment, an hour key H and a minute key M are provided, but if the time input data is, for example, 4-digit data, and the upper two digits are predetermined as hours and the lower two digits are predetermined as minutes, the hour key H The program time or current time can be set without using the and minute keys H.

As described above, the present invention uses the numeric keys to set the operating time to perform the timer operation and the adjustment time to adjust the current time, and the operating time set by the numeric keys. Since the adjustment time is stored by the time storage memory means, the setting operation is easy and the configuration is simple, especially when there are many operation times to be set.

When adjusting the current time, the adjustment time set using the numeric keys is stored in the time storage memory means, and the time display means blinks instead of the current time, and the time adjustment operation means is operated. When the time adjustment operation is performed, the current time adjusted according to the adjustment time is displayed in continuous light. Therefore, the current time and the adjustment time can be selectively displayed by emitting light in the common time display means, and since the former is a continuous light-emitting display and the latter is an intermittent light-emitting display, the configuration is simple. , and each time can be displayed clearly and reliably. In addition, when setting the current time based on a time signal, etc., after setting the adjustment time using the numeric keys in advance, when the accurate current time known from the time signal, etc. matches the above adjustment time, the time is set. All that is required is to operate the adjusting operation means, and therefore, the time setting operation is simple, and the time can be set accurately and reliably.

[Brief explanation of drawings]

The drawings show an embodiment of a VTR to which the present invention is applied, in which Fig. 1 is a front view of the operating mechanism of the VTR, Fig. 2 is a block circuit diagram of a timer incorporated in the VTR, and Fig. 3 is a block circuit diagram of a timer incorporated in the VTR. is a flowchart of the timer program operation, FIG. 4 is a flowchart of the timer program routine, FIG. 5 is a flowchart of the timer check routine, and FIG. 6 is a flowchart of the timer current time/program time comparison routine. FIG. 7A is a circuit diagram of the program cancel circuit, FIG. 7B is a waveform diagram showing waveforms at various parts in FIG. 7A, and FIG. 8 is a flowchart for setting the current time in the clock section of the timer. In addition, in the symbols used in the drawings, 26...
Key input section, 28... Time display section, 29... Start/end display section, 33... Time setting switch, 37... Clock section, 38... Program memory circuit, 42... Decoder/display drive circuit, 48... Time display blanking circuit , 49...flash display circuit, 52...display content selection/timing circuit, 69...clock preset circuit.

Claims (1)

[Claims] 1. A number key for setting an operation time for performing a timer operation and an adjustment time for adjusting the current time, and a number key for setting an operation time and an adjustment time for adjusting the current time. A time storage memory means for storing an adjustment time; a current time signal generating means for generating a current time signal for displaying the current time; a time display means capable of displaying the current time by emitting light; and the time display. a display content selection/driving circuit that supplies the output of the current time signal generation means to the time display means so that the means continuously displays the current time based on the current time signal from the current time signal generation means; When the adjustment time is set in the time storage memory means using the numeric key, the adjustment time signal from the time storage memory means is used in place of the current time signal to select the display content. a time display blanking circuit and a flash display circuit connected to the display content selection/drive circuit so as to supply the time display means via a drive circuit and display the adjustment time in a blinking light-emitting state; and in the blinking light-emitting state; An operating means for adjusting the contents of the current time signal generating means to the adjustment time set in the time storage memory means, and stopping the operation of the time display blanking circuit and the flashing circuit. and a time adjustment operating means for supplying the adjusted current time signal from the current time signal generating means to the time display means to cause the current time to be continuously displayed by emitting light.