JPS5853412B2 - Dictation record playback device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a dictation recording and reproducing apparatus capable of processing different information and effectively selectively processing the same type of information.

Conventionally, when recording different information on a magnetic tape, the information signal and the control signal were recorded on separate tracks by separate magnetic heads.

Then, the control signal recorded at the position corresponding to the beginning position of the information signal is detected and the running of the magnetic tape is stopped.
The information signal was cued.

By the way, this method uses the same type of control signal for different information, so it is possible to cue each piece of information, but it is impossible to selectively process only the same type of information. The disadvantage is that processing cannot be done quickly.

The present invention records information signals and control signals on dedicated tracks using dedicated magnetic heads in accordance with the types of information, and when cuing up information signals, the information signals are recorded on dedicated tracks using the dedicated magnetic heads. The purpose of this system is to perform information processing accurately and quickly by detecting control signals from the magnetic tape. The apparatus includes a type changeover switch for changing over the circuit depending on the type of information to be recorded, and a state changeover switch for changing over recording or reproduction, and each of the two types of information to be recorded or reproduced has a control signal for cueing. A control signal for second information of the same type as the first information of the same type is recorded on a first track of the magnetic tape, and a control signal of second information of the same type is recorded on a second track of the magnetic tape.
This is a dictation recording and reproducing device characterized in that information of the first information and a control signal of the first information are recorded.

Embodiments of the present invention will be described with reference to the drawings.

FIG. 1 is a block diagram showing the configuration of an apparatus according to the present invention.

In the figure, 1 is a cue signal generator, 2 is an analog switch for auto scanning, 3 is a low-pass filter, 4 is a control signal detection circuit, 5 is a recording amplifier, 6 is a microphone, and 7 is a playback amplifier. 8 is a speaker, and 9.10 is a magnetic head.

Reference numeral 11 denotes a type changeover switch for switching between two types of information (secretary message and business message), which is controlled by classification relay RYl (FIG. 2).

Reference numeral 12 denotes a state changeover switch for switching between recording and playback, which is controlled by changeover relay RY2 (Fig. 3), and its record side contact allows two types of recording (telephone recording and dictation recording).

Now, when the state changeover switch 12 is connected to the recording side contact NO, the outputs of the cue signal generator 1 and the micro are connected to the magnetic heads 9 and 10, respectively.

In FIG. 3, when the telephone recording switch S3 is turned on, the output of the flip-flop composed of the two-man NAND gate Q3 and the three-man NAND gate T1 becomes low level.

Also, if you turn on the dictation switch S4, two-person NA
The output of the flip-flop composed of the ND gate Q and the three-way NAND gate T2 becomes low level.

Therefore, if either the telephone recording signal or the dictation recording signal enters the OR circuit constituted by gate Q4, the output of gate Q4 becomes high level, and switching relay RY2 operates.

Note that the telephone recording switch S3 and the dictation recording switch S4 cannot be operated at the same time.

Subsequent operations take priority.

When the stop switch S is turned on when recording is completed, the recording operation is stopped, and at the same time, RY2 is restored, and the state changeover switch 12 is connected to the contact NC on the playback side.

Depending on whether the information to be recorded is the first information (business message) or the second information (secretary message), the classification relay RYI switches the type changeover switch 11 to select the magnetic head corresponding to the type of message. Do this.

In Figure 2, in the case of a business message, the business message switch S
When Q1.1 is turned on, two two-man power NAND gates Q1. Q
The output of the gate Q1 of the flip-flop consisting of 2 becomes high level, the display lamp L1 lights up to indicate that it is a business message, and RY1 operates and the type selector switch 11 is set to the NO side. The magnetic head 9 records business messages, and the magnetic head 10 records control signals.

In addition, in the case of a secretary message, when the secretary message switch S2 is turned on, the output of gate Q2 becomes high level, the display lamp L2 lights up to indicate that it is a secretary message, and the output of gate Q becomes low level. The indicator lamp L1 goes out, RYI returns, the type changeover switch 11 is connected to the contact NC side, the magnetic head 10 records the secretary's message, and the magnetic head 9 records its control signal.

FIG. 5 is a diagram showing the state of recording on the magnetic tape 13, in which the first track 14 scanned by the magnetic head 9 includes a secretarial message control signal 16 for second information and a business message signal 19 for first information. In the second track 15, which is scanned by the magnetic head 10, a secretarial message signal 17 of second information and a control signal 18, 20 for message of first information are recorded.

Note that if a message signal and a control signal of the same type of information are recorded on the same track, the beginning of the message signal may be missing or the control signal may overlap with the beginning of the message signal. Message signals and control signals are recorded on separate tracks.

When reproducing only the message 19.21, when the message switch S1 is turned on, the classification relay RY1 is operated and the type changeover switch 11 is set to contact N.
Connected to O side.

Next, when the auto-scanning switch S6, fast-forward switch S7, or rewind switch S8 in FIG. Only the control signal 18.20 passes through the low-pass filter 3.

The control signal has a lower frequency than the audio signal (e.g. 40Hz)
, the secretary message 11 recorded on the same second track 15 is blocked by the filter 3.

Then, the output of the filter 3 is detected by the detection circuit 4, and the cueing operation and fast forwarding or rewinding operation are stopped.

At this time, since the reproduction amplifier T and the speaker 8 are connected to the magnetic head 9, the first track 14 can also be reproduced.

If you wish to perform fast forward and rewind operations independently without performing this high-speed automatic cueing operation (auto scanning), you can do so by turning on only S7 or S8.

That is, when S6 is turned on, the output of gate Q6 becomes high level and indicator lamp L3 lights up to display auto scanning.

Then, an OR circuit for fast forwarding and rewinding is created using the gate QIO, an AND circuit for cue operation and fast forwarding or rewinding operation is constructed using the gate Q8, and the analog switch 2 is operated through the inverter H.

Note that A and B in FIG. 1 are connected to AI and B/ in FIG. 4, respectively.

Fast-forwarding and rewinding operations are not performed at the same time; the operation performed later takes precedence.

That is, the output of the detection circuit 4 stops the cue operation and fast forward or rewind operation that are in progress through B-B'.

Then, the reproduction operation is started by turning on a reproduction switch (not shown).

As described above, according to the device of the present invention, only messages of the same type, such as business messages, can be processed quickly, so that excellent dictation playback can be achieved without the drawbacks of the conventional device mentioned at the beginning. It can be a device.

[Brief explanation of the drawing]

FIG. 1 is a block diagram showing the configuration of the device of the present invention; FIG.
3 and 4 are explanatory diagrams of the operation of the apparatus of the present invention, and FIG.
The figure shows a state in which various signals are recorded on a magnetic tape. 1... Cue signal generator, 2... Analog switch, 3... Low pass filter, 4...
...Detection circuit, 5...Recording amplifier, 6.
...Microphone, 7...Regeneration amplifier, 8...
...Speaker, 9.10 ...Magnetic head,
11... Type selection switch, 12...
Status changeover switch, 13...Magnetic tape, 14
...First track, 15...Second track, 16...Secretary message control signal, 17...
... Secretary message, 18, 20 ... Control signal for business message, 19, 21 ... Business message.

Claims (1)

[Scope of Claims] 1. Two magnetic heads that scan different tracks on a magnetic tape, a type changeover switch that switches circuits depending on the type of information recorded or reproduced by these magnetic heads, and a recording or reproduction type switch. The two types of information to be recorded or reproduced each have a control signal for cueing, and the first track of the magnetic tape has the same type of first information. A control signal of the same type of second information is recorded thereon, and a control signal of the second information and the first information is recorded on a second track of the magnetic tape. A dictation record reproducing device. 2. Two magnetic heads that scan different tracks on a magnetic tape, a type selector switch that switches the circuit depending on the type of information recorded or reproduced by these magnetic heads, and a state switch that switches between recording and reproduction. The two types of information to be recorded or reproduced each have a control signal for cueing, and the first track of the magnetic tape has the same type of first information and the same type of first information. A control signal for the second information is recorded on the second track of the magnetic tape, and a control signal for the second information and the first information is recorded on the second track of the magnetic tape. When detecting a control signal for the information desired by the return operation, the control signal is separated from other information recorded on the same track by a low-pass filter, and the output of the filter is used to perform cueing, fast forwarding, or A dictation recording and reproducing device characterized in that it is configured to stop a rewinding operation.