JPH048488Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Technical Field of the Invention] This invention relates to an automatic reciprocating magnetic recording and reproducing device that is capable of recording while the user is away at a time set by a timer.

[Technical background of the invention]

A conventional automatic reciprocating magnetic recording device of this type is shown in FIG. In Fig. 1, 1 is a pulse generation circuit, _S1 is a timer mode selector switch connected to this pulse generation circuit 1,
D ₁ ~ _{D 3} are connected to this timer switch S ₁ ,
Diode for reverse current prevention, S ₂ ~ _{S 3} are diodes
_{2 is a mechanism control circuit connected to diodes D 1 to D 3 and operation} switches S _{2 to S 3} to cause mechanism 3 to operate; .

In the device configured in this way, the transistor Q1 is turned on by the resistors _R1 to _R2 of the pulse generation circuit 1 and the capacitor C when the power is turned on, and after a certain period of time, when the capacitor C is fully charged, the transistor _Q1 is turned on again.
It is turned off. The pulses generated by the transistor _Q1 provide a signal to the mechanical control circuit ₂ , which is equivalent to pressing the operating key switch _S2 or _S3 , according to the mode selected by the timer switch S1. Accordingly, the mechanical control circuit 2 instructs the mechanism 3 to perform a predetermined operation.

With conventional equipment, for example, when recording three non-consecutive sources of 15 minutes, 20 minutes, and 30 minutes using a magnetic tape that lasts 45 minutes each way, the magnetic tape may be reversed in the middle of the 30-minute source. The problem was that the song would cut out when the song started.

[Purpose of invention]

In order to eliminate the above-mentioned drawbacks, this invention was developed to record the nth source specified in advance.
The purpose of this is to provide a function that allows the user to fast forward the remainder of side A of the tape and start the next recording from the beginning of side B.

[Embodiment of the invention] An embodiment of the invention will be described based on the drawings.
In FIG. 2, 2 is a mechanism control circuit; 5 is a key switch that instructs the mechanism control circuit 2 to operate the mechanism; 3 is a mechanism operated by the mechanism control circuit 2; 4 is a key switch that turns on and off the power of the entire device; Also, a program timer capable of instructing the mechanical control circuit 2 to perform an absence recording (timer REC) and a second recording function;
6 is an operation switch connected to the program timer 4 to program the second recording function, and 7 is a power supply circuit which can also be turned on and off by the program timer and mechanism control circuit 2. 8 is an answer recording switch connected to the mechanism control circuit 2. FIG. 4 shows the configuration of the program timer 4, including a clock circuit 41 that sends a reference time signal to a control circuit 43, and a display device 42 that is connected to the control circuit 43 and displays the time, timer setting time, etc. and a storage device 44 connected to the control circuit 43 and storing timer operation times, operation details, etc.
A keyboard 45 connected to the control circuit 13 and used to input time correction, timer time, operation details, etc.
, an input key 6 connected to the control circuit 43 for operating this function, and an input key 6 connected to the control circuit 43,
Input key 8 for inputting timer REC operation
and a control circuit 43 that gives instructions to the mechanical control circuit 2 and the power supply 7 circuit according to the program.

Next, the operation and effect of this invention will be explained. In Fig. 2, first the program timer 4
Set the start and end times for recording when you are away from home twice or more. At this time, the operation switch 6 (not shown) is programmed to instruct the operation of this function as well as setting the end time of the absentee recording that you want to operate (this is considered the nth time). When the recording start time arrives, the program timer 4 turns on the power supply circuit 7.
ON, and the power to the device is turned ON. Mechanism 3
The mechanical control circuit 2 detects by the switch 8 that it is timer recording, and puts the mechanism 3 into the recording state. After a predetermined period of time, the timer 4 instructs the mechanical control circuit 2 to turn off the power, and also instructs the mechanical control circuit 2 to operate this function since it is the nth time. In response to this input, the mechanical control circuit 2 causes the mechanism 3 to fast forward (FF), detects that the mechanism 3 has reached the end of the tape, and instructs the mechanism 3 to change the direction of the magnetic tape.
The mechanical control circuit 2 detects that the mechanism 3 has completed the direction change, and supplies power to the power supply circuit 7.
Instruct it to turn off. The power supply circuit 7 turns off the power of devices other than the program timer 4.
For times other than the nth time, the process is the same as the nth time until the power is turned on and recording starts. After a predetermined period of time, the timer 4 instructs the mechanical control circuit 2 to turn off the power, but since it is not the nth time, it does not instruct the operation of this function. As a result, the mechanical control circuit 2 instructs the power supply circuit 7 to turn off the power. The power supply circuit 7 turns off the power of devices other than the program timer 4.

FIG. 3 shows a time chart based on the above operation.

In the above embodiment, the answering machine recording switch 8 is connected to the control circuit 2, but the answering machine recording switch 8 can also be connected to the second recording switch 6 for programming the operation instructions of this function. When connected to program timer 4 instead of control circuit 2 and set to turn on the power at a certain time,
The control circuit 2 does not decide whether to record while you are away or timer playback, but at the same time programs the time in the timer, it also programs whether to start recording or playback at that time if the power is on, and whether to turn it off without doing anything if the power is off. A timer that can be programmed to activate this function may also be used (see Figure 4).

[Effect of idea]

As described above, according to this invention, when recording three sources of 20 minutes, 15 minutes, and 30 minutes on a 45-minute one-way tape while you are away, you can prevent a break from occurring in the middle of the third source. In addition, when the recording of the second source is completed, the beginning of side B is searched, so that recording of the third source can be started immediately.

[Brief explanation of the drawing]

Fig. 1 is a diagram showing the configuration of a conventional automatic reciprocating magnetic recording device having an absence recording function, Fig. 2 is a diagram showing the configuration of an automatic reciprocating magnetic recording device showing an embodiment of this invention, and Fig. 3 is a flowchart of the control circuit according to this invention, and FIG. 4 is a block diagram of the program timer. 2... Mechanical control circuit, 3... Mechanism, 4...
...Program timer, 5...Operation switch, 6
...Second recording switch, 7...Power supply circuit, 8...
...Timer recording switch.

Claims (1)

[Scope of utility model registration request] An automatic reciprocating magnetic recording device capable of reciprocating magnetic tape recording includes a control circuit that sets the magnetic tape running mode, detects the end of the tape in the recording mode, and instructs to change the direction of the magnetic tape, and a control circuit that instructs to change the direction of the magnetic tape. Turn the power on and off to
You can set the time multiple times, and
and a timer configured to control the control circuit when the absence recording operation is completed for a preset number of times, and the control circuit receives a control signal from the timer and sets the time a plurality of times after an arbitrary number of times. Set the magnetic tape running mode to fast forward,
This automatic reciprocating magnetic recording device is configured so that after changing the direction of the magnetic tape at the end of the magnetic tape, the power is turned off and recording is performed from the beginning of the reversed magnetic tape at the next recording setting time.