JPH083082Y2 - Voice recording / playback device - Google Patents

Description

[Detailed Description of the Invention] [Technical Field of the Invention] The present invention relates to a voice recording / reproducing apparatus used for message transmission.

[Conventional technology]

2. Description of the Related Art Conventionally, a recording / reproducing apparatus for recording a message to be recorded on a cassette tape or the like and receiving the message by another person reproducing the recorded message is known.

[Problems of conventional technology]

Since a microphone and a speaker are built in the main body of the recording / reproducing apparatus, for example, there is a problem that external noise is also recorded during recording and the sound quality is deteriorated. Also, when listening to a recorded message, the sound is emitted from the speaker attached to the main body of the apparatus, so that there is a problem that other users can hear the message content.

[Purpose of device]

The present invention has been made in view of the above problems, and an object thereof is to provide a voice recording / reproducing apparatus capable of recording / reproducing a message with a simple structure.

[Key points of device]

The present invention provides a voice recording / reproducing apparatus with a handset having a built-in microphone and speaker, and can record a message from the microphone of the handset of the handset, and listen to the recorded message from the speaker of the handset. Is something that can be done.

〔Example〕

 An embodiment will be described below with reference to the drawings.

FIG. 3 is a view showing the external appearance and internal structure of a voice recording / reproducing apparatus according to an embodiment of the present invention. The voice recording / reproducing apparatus is composed of a main body 1 having a control board for recording / reproducing and a handset 2 having a microphone 2c and a speaker 2d described later in a transmitter 2a and a receiver 2b, respectively. 2 is connected by a cord 3. A hook switch 4 for detecting that the handset 2 is placed is provided on the upper part of the device main body 1. When the handset 2 is separated from the device main body 1, the hook switch 4 detects the state and further records. Switch (RE
When you operate C) 5, the recording of the message input from the microphone of handset 2 is started, and the playback switch (RLA
When Y) 6 is operated, the reproduction of the message recorded before that is started, and the message can be heard from the speaker of the handset 2. In addition, this device can display the time and set the alarm time, and the time measured is displayed on the digital display unit 7. When the mode switch SW1 is operated, for example, the time display mode is switched to the alarm time display mode. "Hour" and "Minute" setting switch SW2,
The alarm time can be set freely by operating each SW3. When the current time reaches the set alarm time, the buzzer 8 issues an alarm sound. A photo or the like can be attached to the front surface 9 of the main body 1.

Inside the main body 1, there is a control board 10 equipped with an LSI (not shown) for recording and playing voice and timing the time, and on the board there is a tone ring IC 10a for generating a ringing tone of a telephone, a DC The / DC converter 10b etc. are mounted. In addition to this, a cassette section 11 for recording and reproducing sound on the cassette tape 10c, a battery compartment 12 for accommodating a battery for supplying a power supply voltage V ₀ to the control board, and a boosting voltage V ₁ for a DC / DC converter And a storage portion 13 for the battery.

FIG. 1 is a circuit block diagram of the above-mentioned LSI, that is, a voice recording / reproducing apparatus including time, alarm and the like. The oscillator 21 creates a clock signal of a constant cycle and outputs it to the frequency dividing circuit 22. The frequency dividing circuit 22 divides the clock signal to divide it into a reference clock signal having a predetermined frequency and a DC / DC converter described later. This is a circuit that creates a boosting clock signal f that is supplied to the 34, and uses the created reference clock signal as a clock count circuit.
Output to 23. The total clock number circuit 23 creates time data of hours, minutes, and seconds based on the reference clock signal given from the frequency dividing circuit 22, and outputs it to the display switching control circuit 24 and the coincidence detection circuit 25. The alarm time storage unit 26 is a memory for storing the alarm time set by operating the switches SW2 and SW3 for setting the "hour" and "minute" of the switch unit 27, and the stored alarm time data is displayed on the display switching control circuit 24. And to the coincidence detection circuit 25. The display switching control circuit 24 selects one of the time data from the total clock circuit 23 and the alarm time data from the alarm time storage unit 26 according to the signal from the mode switch SW1 of the switch unit 27 and displays it on the display unit 7.

The coincidence detection circuit 25 is a circuit that detects when the clocked time reaches the alarm time, and outputs a low-level signal i to the AND gate 28 at times other than the alarm time. The AND gate 28, the fall detection circuit 29, and the rise detection circuit 30 are pulled up to the power supply voltage V ₀ via the resistor R ₁ and further grounded via the hook switch 4. When the handset 2 is placed on the recording / reproducing apparatus main body 1, the hook switch 4 is in an off state, and the inputs of the AND gate 28, the fall detection circuit 29, and the rise detection circuit 30 are at high level (V ₀ ).
Has become. The output signal of the AND gate 28 is input to the set terminal (S) of the RS flip-flop 31, and the Q output signal of the RS flip-flop 31 is input to the ringing tone generation circuit 32 and AND gates 33 and 36.

The DC / DC converter 34 converts the voltage V _{1 of} about 4.5V supplied from the battery housed in the battery housing 13 into the voltage V ₂ of 17V or more which is the operating voltage of the tone ringer IC 11a of the ringing sound generation circuit 32. It is a circuit for boosting, and when the AND gate 33 is open, it performs a boosting operation in accordance with a clock signal f of a constant frequency given from the frequency dividing circuit 22. That is, if the clocked time does not match the alarm time, RS
The Q output signal C of the flip-flop 31 remains at the low level in the reset state, the AND gate 33 is closed, the DC / DC converter 34 stops operating, and the ringing tone generating circuit 32 is not supplied with the voltage V ₂ . On the other hand, when the clocked time reaches the alarm time, the coincidence detection circuit 25 outputs a high level signal, the RS flip-flop 31 is set, and the Q output signal C becomes high level. As a result, the AND gate 33 is opened, and the input clock signal f having a constant frequency is supplied to the DC / DC converter 34. And DC according to this signal f
The / DC converter 34 performs a boosting operation and supplies the voltage V ₂ to the ringing sound generation circuit 32. The ringing tone generation circuit 32 is the above-described tone ringer IC 10a, which outputs the frequency signal of the ringing tone of the telephone, and when the ringing tone generation circuit 32 operates, an alarm sound is generated from the buzzer 35 with the same tone as the ringing tone of the telephone, for example. Be sounded.

The fall detection circuit 29 is a circuit that detects that the handset 2 has been disconnected from the hook switch 4, that is, a circuit that detects that the input signal has fallen from the high level (V ₀ ) to the ground level. When the signal does not fall, the low-level signal h is normally output. When the handset 2 is detached and the hook switch 4 is turned on, and it is detected that the signal a falls to the low level, a high level signal b having a constant width is output to the AND gate 36. The output of the AND gate 36 passes through the delay circuit 37 and is input to the reset terminal (R) of the RS flip-flop 31 and the set terminal of the RS flip-flop 38. The Q output of the RS flip-flop 38 is given to the recording / reproducing circuit 40 as a signal for instructing reproduction through the OR gate 39. That is, the output of the OR gate 39 works as a signal for reproducing the voice message recorded in advance on the cassette tape from the speaker 2d of the handset 2.

The output of the fall detection circuit 29 is input to the AND gate 41, and the output signal of the RS flip-flop 31 is also input to the AND gate 41. The output of AND gate 41 is
It is input to the set terminal of the RS flip-flop 42, and the Q output signal of the RS flip-flop 42 is input to the AND gates 43 and 44. The AND gate 43 is connected to the power supply voltage V ₀ via the recording switch 5, and the AND gate 44 is connected to the power supply voltage V ₀ via the reproduction switch 6.

That is, if the recording switch 5 is operated while the RS flip-flop 42 is set and the Q output signal d is at high level, the output of the AND gate 43 becomes high level and is given to the recording / reproducing circuit 40 as a recording start signal. A voice message can be recorded from the microphone 2c of the transmitter 2a of the handset 2. When the reproduction switch 6 is operated, the output signal g of the AND gate 44 becomes high level, reproduction is started, and the message recorded before that can be heard from the speaker of the handset 2b of the handset 2.

The rising detection circuit 30 is a circuit for detecting that the handset 2 is set again on the hook switch 4, and when the handset 2 is set and the hook switch 4 is turned off, the rising edge detection circuit 30 detects a signal a rising to a high level and has a constant width. It outputs a high-level signal h. This signal h is given to the reset terminals of the RS flip-flops 38, 42 to reset the respective RS flip-flops 38, 42 to the initial state, and also given to the recording / reproducing circuit 40 to instruct the rewinding of the cassette tape and at the time of reproducing. Play from the beginning of the tape again.

The recording / reproducing circuit 40 controls recording / reproducing of the cassette tape 10C shown in FIG. 3, and is supplied with the ground voltage and the power supply voltage V ₁ .

Next, the operation of the audio recording / reproducing apparatus configured as described above will be described with reference to the time chart of FIG.

When recording a voice message in advance on the cassette tape 10C, first remove the handset 2 from the hook switch 4. Thus, as shown in FIG. 2 t _1, signal a falls, the signal b from falling detection circuit 29 is outputted,
The RS flip-flop 42 is set, and the Q output signal d becomes high level. When the recording switch 5 is operated in this state, the recording signal e becomes high level during the operation, the recording / reproducing circuit 40 starts the recording operation, and the message from the microphone 2C of the hunt set 2 can be recorded. Similarly, when the reproduction switch 6 is operated, the recorded message can be heard from the speaker 2a.

After that, when the handset 2 is returned to the hook switch 4, the rising edge of the signal a is detected, the rising edge detection circuit 30 outputs the signal h that is at the high level for a certain period of time, and the respective parts of the circuit are reset. Also, the recording / playback circuit 40 is driven by signal h.
Rewinds the tape and prepares for the next playback.

Thus, total current time obtained by the coincidence circuit 23 has reached the alarm time of the alarm time storage unit 26 has been set in advance, the output signal i of the coincidence detection circuit 25 as shown in FIG. 2 t ₂
Goes high and is output from the AND gate 28. The RS flip-flop 31 is set by this high level signal, the signal C of the Q output becomes high level, the ringing tone generating circuit 32 operates, and the alarm tone is sounded. When the handset 2 is detached from the hook switch 4 during the alarm sound, the signal a falls from the high level to the low level as shown in t ₃ in FIG. The fall of this signal a is the fall detection circuit.
The signal b detected by 29 and output from the fall detection circuit 29 becomes high level. The RS flip-flop 38 is first set by this high level signal b, the signal J of the Q output becomes high level, the recording / reproducing circuit 40 operates, and the recorded message is automatically reproduced. Signal b
After a delay time determined by the delay circuit 37 from the rising edge of, the RS flip-flop 31 is reset, the signal C becomes low level, and the alarm sound is stopped.

In this way, it is possible to record and listen to a message from the microphone 2c and the speaker 2d built in the handset 2a and the transmitter 2b of the handset 2, so that it is possible to record and listen to a personal message just like talking on the telephone. Playback can be performed. Moreover, since a message can be recorded from the transmitter 2b of the handset 2, it is possible to make a clearer recording by preventing external noise from entering.

In the above embodiment, the time is displayed on the digital display unit 7.
However, it is also possible to use an analog timepiece that displays hands as shown in FIG. In this case, the alarm time may be set with the reference hand 50, and the recorded content may be reproduced from the handset 2 when it overlaps with the hour hand 51. In addition, 52 is a minute hand and 53 is a second hand. Further, in the above-described Embodiment ₀ , the voice message is recorded on the cassette tape, but the voice may be encoded and stored / reproduced in a disk such as a compact cassette or a semiconductor memory such as RAM.

Further, by using a semiconductor memory or the like, it may be made smaller and a recording / reproducing device may be built in the handset. In this case, a push button switch may be provided in place of the hook switch 4 to record / reproduce only by holding the handset,
You can record and play anywhere.

[Effect of device]

As described above, according to the present invention, it is possible to record and reproduce a message to be transmitted from the microphone and speaker built in the transmitter and receiver of the handset, so that the influence of external noise during recording can be reduced. In addition, the sound quality can be improved, and at the time of playback, only one person can listen to the message while holding the handset in his ear, so that the confidentiality of the message can be maintained. In addition, the recorded message can be played back by hooking the handset off during the alarm sound.

[Brief description of drawings]

FIG. 1 is a circuit block diagram of a recording / reproducing apparatus according to an embodiment of the present invention, FIG. 2 is a timing chart showing its operation, FIG. 3 is a diagram showing its external appearance and internal configuration, and FIG. It is a figure which shows the external appearance of an Example. 1 ... Recording / playback device main body, 2 ... Handset, 4 ...
Hook switch, 40 ... Recording / playback circuit.

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Yoshihide Yanagihara, Aichi Casio Co., Ltd. 1 2233, Kamisama, Komaki City, Aichi Prefecture (56) References JP 62-290254 (JP, A)

Claims (1)

[Scope of utility model registration request] 1. A handset having a built-in microphone and a speaker, a device body having a built-in voice recording / reproducing circuit and having a mounting portion for the handset, and the handset mounted on the mounting portion of the device body. Detection means for detecting whether the handset is placed or not, and the recording / playback of the sound input through the microphone of the handset when the detection means detects that the handset is not placed on the apparatus body. Storage control means for storing in the circuit, playback switch means for instructing playback of the voice stored in the recording / playback circuit, timing means for counting the current time, alarm time setting means for setting the alarm time, and the timing An alarm sound is issued when the current time measured by the means reaches the alarm time set by the alarm time setting means. Lam sound generating means, when the alarm sound is not reported, the detecting means detects that the handset is not mounted on the apparatus main body, and when the reproduction switch means is operated and the alarm is generated. When the handset is detected not to be mounted on the main body of the apparatus by the detecting means during the sound reporting, the voice stored in the recording / playback circuit is reported from the speaker built in the handset. A voice recording / playback apparatus comprising: playback control means.