JPS63285747A - Timer device for recording and reproducing machine - Google Patents

Abstract

PURPOSE:To obtain a timer which can be used for both recording and reproduction, by giving a function which can set a reproducing time to a recording time setting switch provided for a timer function at the time of the recording mode of a recording and reproducing device. CONSTITUTION:A logic switch 13, recording mode memory 14, and reproducing mode memory 15 are additionally installed to a conventional recorder and reproducing device composed of a calendar 1 with clock, sequence section 12, etc. At the time of recording, this device operates similarly to conventional recording operations by means of the memory 14 at the time of recording. At the time of reproduction, the sequence section 12 designates the reproducing mode and the memory 15 connects a switch relay 19 and actuates a display 20. When a switch 10 is depressed thereafter, the logic switch 13 is actuated and drives a time step setting circuit 9. The time set by the circuit 9 is displayed in a displaying section 5 as shown in the frame 5A. After the time is set, a subtraction timer 11 is actuated and, when the set time is subtracted, the timer 11 outputs a stop signal so as to stop the reproduction. When such simple circuits are added, a timer which can be used for both recording and reproduction can be obtained.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a timer device for a recording/reproducing device applied to a magnetic recording/reproducing device (hereinafter referred to as a VTR) or the like.

[Prior Art] Fig. 2 is a block diagram showing the configuration of a timer device of a recording/reproducing machine that has been widely used in VTRs. (2) is the display part of the calendar (1), (3) is the start time setting RAM, (4) is the display part that displays the start time, (
5) is a display unit that displays the recording time, (6) is a digital comparator, (7) is a time step discrimination circuit that discriminates steps, for example, every 30 minutes, (8) is a button switch that sets the recording start time, ( 9) sets the recording time to 30, for example.
A step setting circuit that sets a step every minute, (10) a button switch that sets the recording time, (11) a subtraction timer that subtracts the set time every minute using the clock signal of the clocked calendar (1), (12) is a sequence section that operates the entire VTR.

Next, the operation of the above configuration will be explained.

First, the current time is created by a clocked calendar (1) having a crystal oscillator and displayed on the display section (2). Here, for example, Sunday, March 15, 1962, 8 p.m.
The time shall be 17 minutes. In this state, if you want to record a program for 1 hour and 30 minutes from 9:30 p.m., when you close the button switch (8), the current time of 8:17 is input to the step discrimination circuit (7), and the program is discriminated in 30-minute increments. It will be 8:30. At the same time, the start time is input to the start time setting RAM (3), and 8:30 PM is displayed on the display section (4). This is purpose 9
When the button switch (8) is pressed again, 9:00 PM will be displayed on the display (4). This is also different from the desired start time, so when the button switch (8) is pressed again, 9:30 PM will be displayed on the display section (4), making it the desired start time. This target start time is the start time setting RAM
(, 3), and the display section (4) displays 9:30 PM.
is displayed.

Then, by pressing the button switch (lO) once, the step time setting circuit (9) sets the set time, such as 30 minutes, and by pressing the button switch (10) twice, the setting time is set to 1 hour, and by pressing the button switch (10) a third time, the setting time is set to 1 hour. A time of 30 minutes is set.

Since the target recording time here is 1 hour and 30 minutes, the setting is completed by pressing the button switch (10) three times. This set time is displayed on the display section (5) after a subtraction timer (1 count).

As described above, press the two button switches (8), (10)
When all the settings are completed, the carenge with clock (1)
The time digital information signals are sequentially input to the digital comparator (6) over time. On the other hand, start time setting RA
The digital information signal of 9:30 am stored in M (3) is also input to the comparator (6), and when both digital information signals are compared by the comparator (6) and they match, That is, when the clock reaches 9:30, the output signal from the comparator (6) is input to the sequence section (12), and the loading and recording operations of the VTR are started.

From this point on, the subtraction timer (11) operates and sequentially subtracts the timer setting time of 1 hour and 30 minutes. The reference clock signal at this time uses the timer drive clock signal of calendar (1). That is, PM9:3 on March 15, 1962.
Recording starts from 0, one display (2) advances with the time, the other display (4) always displays 9:30 PM, and the display (5) changes as time passes.
l:29.1:28,...---0: 59%
Axis -------0:01 is displayed, and it becomes 0:00 at PMII:00 after 1 hour and 30 minutes. When this subtraction timer (11) reaches 0:00, a stop signal output from the subtraction timer (11) is sent to the sequence section (2).
The loading operation and recording operation of the VTR are stopped, and after a few seconds, the power of the entire VTR is also turned off.

In this way, 1 hour 30 from 9:30 to 11:00
A timer recording of minutes is performed.

[Problems to be Solved by the Invention] Since the timer device of the conventional recording/reproducing machine is configured as described above, it is very effective as a timer device in the recording mode and is frequently used. It does not function as a timer at all, and can only be used as a recording-based timer.

This invention was made to solve the above-mentioned problems, and provides a timer for a recording/reproducing machine that can effectively utilize the timer function during recording as a sleeve timer during playback by simply adding a circuit. The purpose is to provide equipment.

[Means for solving problems] A timer device for a recording/reproducing machine according to the present invention.

The present invention is characterized in that the playback time is also specified by a switch for setting the recording time from the set start time, and the power supply is cut off after the specified time has elapsed.

[Function] According to the present invention, in addition to the timer function in the recording mode, it can also be operated as a timer function in the playback mode, that is, as a sleeve timer during playback.

[Embodiment of the Invention] Hereinafter, an embodiment of the present invention will be described based on the drawings.

FIG. 1 is a block diagram showing the configuration of a timer device of a recording/reproducing machine according to an embodiment of the present invention.
1) to (12) are the same as the configuration of the conventional example shown in FIG. 2, so they are given the same reference numerals and their explanation will be omitted.

In FIG. 1, (i3) is a logic switch, (14
) is a recording mode memory that records the status when a recording mode is specified, and is generally formed by a sequence section. (
15) is the playback mode memory that stores and maintains the state when the playback mode is specified.This is also the record mode memory (
14), it is formed by a sequence section.

Reference numeral (16) denotes a power supply section for the VTR body, which generally consists of a transformer, a rectifier circuit, and a regulator circuit. (
17) is a plug for supplying AC power to the VTR. (18
) is an AC outlet for power supply that supplies AC power to display equipment, and (19) is the above AC outlet (18).
) is a switch relay that is inserted in series with the power supply to turn on/off the supplied AC power. Further, (20) is a display device, generally a color television receiver, to which AC power is supplied from the AC power supply plug (17).

Next, the operation of the above Jlj will be explained.

The timer operation in the recording mode operates exactly the same as the conventional example shown in FIG. At this time, the recording mode memory (14) is activated, and by pressing the button switch (10), the logic switch (13) is activated and the step setting circuit (9) is activated.
is operated in exactly the same manner as the conventional example shown in FIG.

Next, in the playback mode, the sequence unit (iz) instructs the playback mode, holds the playback mode in the playback mode memory (15), connects the switch relay (19), and turns on the AC.
By supplying power to the outlet (18), the display device (20) is operated to display the reproduced image of the VTR. During this playback, the button switch (10)
When pressed, the logic switch (13) operates to drive the step setting circuit (9). At this time, similarly to the time setting in the recording mode, the step setting circuit (9) allows step setting in 30 minute increments such as 30 minutes when pressed once and 1 hour when pressed twice.

Now, if the desired playback time is 1 hour, the display section (
4), nothing is displayed as shown in (4A), and the display section (5)
) displays (IH00-) as per (5A).

After setting, the subtraction timer (11) is IHOO in the same way as when recording.
M, OH59 supplement, 0H58... are sequentially subtracted over time, and when it reaches 01100-, the subtraction timer (11
) outputs a stop signal, causing both the sequence section (12) and the playback mode memory (15) to shift to the stop mode. That is, at the same time as stopping the loading operation for transitioning from playback mode to stop mode and stopping playback, the switch relay (19) is also opened to turn off the display device (20). Next, the VTR is moved to a stop mode as a sleeve timer, and the power to the display device (20) is also turned off.

It should be noted that it would be easy to configure the VTR so that the power to the VTR body is also turned off at the time of the above-mentioned stop, or even in that case, it is desirable to maintain the operation of the clocked calendar (1).

Furthermore, although the above embodiment shows an electronic circuit, it is also possible to configure the calendar, comparator, step discrimination circuit, step setting circuit, and subtraction timer with one microcomputer tC, which is similar to the above embodiment. be effective.

Further, in the above embodiment, the step is set in 30 minute increments, but it can be freely set in 15 minute increments.

Furthermore, although the power supply section has been described using an AC power source, it may also be constructed from a DC power source, and it can be used not only for VTRs but also for a wide range of devices capable of recording and reproducing.

[Effects of the Invention] As described above, according to the present invention, the timer device of the recorder/player can be used for both the timer function during recording and the timer function during playback, so it is particularly effective as a sleeve timer during playback. It can be utilized. Moreover, most of the circuit configuration for the timer function during recording can be shared with the circuit configuration for the timer function during playback, so the overall cost increase is minimal, and even though it has a timer function for both recording and playback, Can be configured at low cost.

[Brief explanation of drawings]

FIG. 1 is a block diagram showing the structure of a timer device of a recording/reproducing machine according to an embodiment of the present invention, and FIG. 2 is a block diagram showing the structure of a conventional timer device. (2), (4), (5)...Display section, (3)...Start time setting RAM, (6)--Comparator, (7)
...step discrimination circuit, (8), (10)--first
．． Second switch, (9) --- Step setting circuit, (
11)...Subtraction timer, (+2)-...Sequence section, (13)...Logic switch, (14), (15
) --- Memory, (16) --- Power supply section. Note that the same reference numerals in the figures indicate the same or corresponding parts.

Claims (1)

[Claims] (1) A first switch for setting a recording start time, a second switch for setting a recording time from the start time set by the first switch, and a display power supply unit, The first switch specifies the recording start time in the recording mode, the second switch specifies the recording time and the playback time, and after the time specified by the second switch elapses, the power supply from the power supply unit is supplied. A timer device for a recording/reproducing machine, characterized in that the timer device is configured to shut off.