JPS6393243A - Sound recording and reproducing device for telephone set - Google Patents

Abstract

PURPOSE:To preferentially communicate with an originating subscriber by automatically stopping the reproducing operation to connect a telephone set and a telephone line if a call signal comes when a reproduced sound signal is listened with the handset of the telephone. CONSTITUTION:If the call signal comes to a first connection terminal part 1 through the telephone line when the reproduced sound signal is listened through the handset 3 of a telephone set 4, a call signal detecting circuit 32 detects the call signal and applies the output signal to an a stable multivibrator circuit 35 and a reset circuit 37. When the output signal of the call signal detecting circuit 32 is applied to the reset circuit 37 over three seconds, the circuit 37 stops the reproducing operation of a sound recording and reproducing means 5 and connects the telephone line to the telephone set 4 so that the user communicates with the originating subscriber through the handset 3.

Description

[Detailed description of the invention] (a) Industrial application field The present invention is applicable to the recording and recording of signals etc. that can be input and output via telephone lines.
The present invention relates to a telephone recording/playback device for performing playback operations.

(B) Conventional technology Generally speaking, telephone answering machines and call content recording and reproducing devices are used as recording and reproducing devices for telephones to record and reproduce signals input and output through telephone lines. etc. The answering machine is equipped with a response tape for playing back and sending a response message to a caller, and a recording tape for recording a message from the caller. The machine runs the machine, plays a prerecorded response message on the playback device, sends the response message to the caller, and then allows the recording tape to run to record the message from the caller. Such an answering machine is described in Japanese Patent Publication No. 56-16987. On the other hand, a call content recording and reproducing device records the call content by manually or automatically running one recording tape simultaneously with the call operation. To play back the content recorded on the recording tape as described above,
The recorded content is played back from the recording tape, amplified, and emitted as sound through the speaker, so that the operator and people around the device can hear the sound emitted from the speaker. can.

(c) Problems to be Solved by the Invention Conventional telephone recording and reproducing devices emit reproduced audio through a speaker. Therefore, even if the recorded content is an important confidential message or a private message that you do not want others to hear, the only way to listen to it is to emit the sound from the speaker, so it cannot be heard by anyone other than the operator. There was a problem with putting it away. Therefore, the present applicant has already developed a telephone recording and reproducing device that allows only an individual to listen to the audio played back from the telephone recording and reproducing device through the handset of the telephone connected to the telephone recording and reproducing device. Invented and applied for patent. According to the present invention, when a calling signal is transmitted via the telephone line while listening to the voice being played back using the handset of the telephone in such a telephone recording/playback device, the present invention automatically detects the sound when a calling signal is transmitted via the telephone line. The purpose of the present invention is to connect the telephone to a telephone line and make a telephone conversation preferentially through the handset of the telephone.

(d) Means for solving the problem The telephone recording and reproducing device of the present invention connects to a telephone line,
A first connection terminal section to which signals transmitted and received via the telephone line are applied; and a recording/playback device capable of recording the signal applied to the first connection terminal section and also reproducing the recorded signal. and a second connection terminal portion for connecting a telephone that performs a telephone conversation operation using a handset through the telephone line; When the handset is up, the telephone is switched to a first state in which a signal reproduced by the recording and reproducing means is applied, and when the handset is down, the telephone line is connected to the telephone. The state switching means is switched to a second state, and the state switching means is switched to and held in the second state by detecting a ringing signal transmitted through the telephone line, and the telephone is connected to the telephone line. The device is composed of a ringing signal detecting circuit for reading directly, and a reset circuit that receives an output signal from the ringing signal detecting circuit, switches the state switching means to the second state, and stops the operation of the recording and reproducing means. ing.

(E) Function The recording and reproducing device for a telephone according to the present invention is effective when listening to audio being reproduced by the reproducing operation of the device via the handset of the telephone that is not connected to the second connection terminal. , when a calling signal arrives via the telephone line connected to the first connecting terminal section, the calling signal detection circuit provided in parallel to the first connecting terminal section performs a detection operation and outputs it. By using the output signal to stop the playback operation of this device and automatically connect the telephone line to the telephone, the transmission that was used to listen to the audio being played back can be stopped. The user can communicate with the caller through the handset.

(F) Embodiment Hereinafter, an embodiment of the telephone recording and reproducing apparatus of the present invention will be described in detail with reference to the drawings. (1) is a first connection terminal section provided for directly connecting a telephone line, and has two terminals, a T terminal and an R terminal. (?) is a telephone set (4) which has two terminals, T'terminal R'terminal, like the first reading terminal part (1), and is used for making calls using a handset (3).
) is a recording/reproducing means for recording and reproducing signals input/output from a telephone line, and a magnetic tape (6) for recording and retaining the signals and a magnetic tape (6) for recording and retaining the signals. A drive motor (7) for running the tape (6)
), an operation switch (8) for switching between operation and non-operation of the drive motor (7), a recording switch (9) for performing a recording operation on the magnetic tape (6), and
A recording amplifier circuit (11) that amplifies the signal from the telephone line applied to the reproduction head (10) and the recording head (9) for performing a reproduction operation, and an operating voltage to the recording amplifier circuit (11>). First recording switch (12) for supplying
and a second recording switch (13) for inputting a signal from a telephone line to the recording amplifier circuit (11) in conjunction with the first recording switch (2); and a playback head (13) for performing the playback operation. 10), and two fixed terminals (15a) and (15b) for switching the terminal to which the signal amplified by the first amplifier circuit (14) is applied. a first switch (15) comprising a first switch (15), a second amplifier circuit (16) connected to one fixed terminal (15a) of the first switch (15) and performing amplification for sound emission, and the second amplifier circuit. A speaker (17) for emitting the amplified signal in (16) to the outside is connected to the other fixed terminal (tsb) of the first switch (15), and is connected to the first amplifier circuit (14). supplying operating power to a third amplifier circuit (18) that performs an amplification operation of the output signal of the second amplifier circuit (18), and to the second amplifier circuit (16) and the third amplifier circuit (18) in conjunction with the first switch (15); The second switch (19) is configured with a terminal (19a) connected to the second amplifier circuit (16) and a terminal (19a) connected to the third amplifier circuit (18). (20) is a line transformer whose one end is connected to the output side of the third amplifier circuit (18) of the recording/reproducing means (21) is the second connection terminal (19b). Terminal part (
2) is an off-hook detection circuit for detecting an off-hook state of a telephone (4) connected to a telephone (4), and in this embodiment, it is composed of a coil and a capacitor. (22) is
A relay circuit (24), which is controlled by an interlocking switch (23) that turns on at the same time as the off-hook detection circuit (21) detects an off-hook state, starts when the relay circuit (22>) starts and The first switch (15) and the second switch (19) are connected to the third amplifier circuit (
A switch control circuit (25) switches the terminals (15b) and (19b) in contact with the relay circuit (22) and the switch control circuit (24).
) is used to cut off the power supply voltage applied to the telephone (4), and is used in the off state when the handset (3) of the telephone (4) is used for a telephone conversation via the telephone line. (2
6), (27), (28), (29) are
The first relay circuit (22) performs a switching operation when activated. Second. Third. The movable terminals (26a), (27a), (28a), (
29a) and the first fixed terminal (26b), (27b)
, (28b).

(29b) and second fixed terminal (26c), (27c)
, (28c) and (29C). The movable terminal (26a) of the first changeover switch (26) is connected to the T' terminal of the second connection terminal section (2), and is connected to the power supply voltage VC.
The first fixed terminal (26b) to which C is applied via the first resistor (30), the T terminal of the first connection terminal section (1), and the second fixed terminal (28c) of the third changeover switch (28). However, when the relay circuit (22) is not in operation, it is always in contact with the second fixed terminal (26c). The movable terminal (27a) of the second changeover switch (27) is connected to the off-hook detection circuit (21>), and is connected to the first fixed terminal (27b) which is grounded and the R of the first connection terminal portion (1).
It is in contact with one of the second fixed terminals (27C) connected to the terminal, but when the relay circuit (22) is not in an operating state, it is always in contact with the second fixed terminal (27c). The movable terminal (2) of the third changeover switch (28)
8a) is connected to the line transformer (20) and has a first fixed terminal (28b) connected to the movable terminal (27a) of the second changeover switch (27) and the first connection terminal portion (
1) and the second fixed terminal (26c) of the first changeover switch (26).
c) The relay circuit (22) is in contact with either
is not in operation, the second fixed terminal (
28c). Said fourth changeover switch (29)
The movable terminal (29a) is connected to the line transformer 21), and the movable terminal (29a) of the first changeover switch (26) is connected to the line transformer 21).
6a) via a first capacitor (31>) and a movable switch (3) which will be described later.
8) is connected to the second fixed terminal (29c) connected to the second fixed terminal (38c), but when the relay circuit (22> is not in the operating state, the second fixed terminal
It is connected to the fixed terminal (29c). (32> is a calling signal detection circuit for detecting a calling signal transmitted from the telephone line to the first connection terminal 1>;
It is connected to the first connection terminal section (1) via a second resistor (33) and a second capacitor (34). (3
5) is an astable multi-circuit for converting the output signal of the calling signal detection circuit (32) into a notification signal, and (36) is an astable multi-circuit that blinks in response to the notification signal output from the astable multi-circuit (35). A light emitting diode (37) is a light emitting diode (37) that notifies the arrival of a calling signal.
By receiving the output signal of 2) for a certain period of time or more (3 seconds or more in this embodiment), the operation of the recording/reproducing means (2) is stopped and the relay circuit (22) and switch control circuit (24) are deactivated. A reset circuit (38) is a movable switch for setting the movable terminal (38a) connected to the R terminal of the first connection terminal section (↓).
) and a first fixed terminal (32) connected to the calling signal detection circuit (32) via the second capacitor (34).
38b) and the recording/reproducing means (38a) are connected to the movable terminal (38a) when recording messages and calls from the other party sent via the telephone line, and a recording signal is applied to the line transformer (20). The second fixed terminal (38c) is connected to the second fixed terminal (29c) of the fourth changeover switch (29). The second fixed terminal (38c) is connected to the movable terminal (3
8a), and in the standby state and playback state of the device in this embodiment, the movable terminal (38a)
is connected to the first fixed terminal (38b).

The present invention is constructed as described above, and the operation of this embodiment will be explained next with reference to the drawings. First, the telephone (4) connected to the second connection terminal section (2) of the device of the present invention
A case will be described in which a telephone conversation operation is performed using the handset (3). The relay circuit (22) and switch control circuit are configured so that the relay circuit (22) and switch control circuit (24) will not operate due to activation of the off-hook detection circuit (21) even if the handset (3) of the telephone set (4) is lifted. 1 for (24)! When the call switch (25) is turned off to stop the supply of power supply voltage,
The relay circuit (22), the switch control circuit (
24) becomes completely inactive. Therefore, even if the handset (3) is off-hook, the off-footer detection circuit (21) detects the off-hook state of the telephone (4), and the interlocking switch (23) is turned on, the relay circuit (2z
) and the switch control circuit (24) remain inactive and do not operate at all. Therefore, the relay circuit (2
2), the switching operation is performed by the activation of 1st. Second. Third. Fourth
Changeover switch (26), (27), (2B>
, (29) is that since the relay circuit (22) is always in an inactive state, the movable terminal (26a) of the first changeover switch (26) is connected to the second switch regardless of whether the telephone (4) is on-book or off-hook. Attach the second terminal to the fixed terminal (26c). Third. 4th changeover switch (27), (28)
, (29) movable terminals (27a), (28a)
, (29a) and each second fixed terminal (27c)
, < 28e) , (29c) Since the telephone (4) is always connected to the telephone line, the telephone (4) can be used in the same way as a telephone connected directly to the telephone line. All dial call operations can be performed at any time. Furthermore, when a call signal is received and a call operation is performed, the movable switch (38) corresponds to the off state of the interlocking switch (25) and connects the movable terminal (38a) to the second fixed terminal (
38c), the call signal applied to the first reading terminal section (1) via the telephone line is transmitted to the movable switch (38c).
38) and is not detected by the calling signal detection circuit (32). Therefore, in such a state, the first connection terminal portion (1)
The call signal applied to the first connection terminal section (1) is transferred from the second fixed terminal (26c) to the movable terminal (26a) of the first changeover switch (26) connected to the T terminal of the first connection terminal section (1). Path for applying voltage to the phantom T terminal and the first connection terminal section (↓)
The second fixed terminal (27c) of the second changeover switch (27) connected to the R terminal of Connection terminal section (telephone in on-footer state connected to phantom (4
). Thereby, a calling bell (not shown) built into the telephone set (4) is operated to notify the user of the arrival of the calling signal. The user notices the arrival of the calling signal and takes the handset (3) off-hook to talk to the caller.

Next, a case will be described in which the above-described operation is used to record the content of a call made using the telephone (4). In such a state, the first connection terminal portion (1) receives an audio signal input/output to/from the telephone line due to a telephone call operation being performed via the telephone line. Therefore, first, the recording head (9) is brought close to the magnetic tape (6) and set to a position where mechanical recording is possible, the operation switch (8) is turned on, and the drive motor (7) is operated to record the magnetic tape. (6) and turn on the first recording switch (12) to turn on the recording amplifier circuit (11).
) is activated, the second recording switch (13) is turned on in conjunction with the first recording switch (12).

Further, the movable switch (38) is linked to the off state of the call switch (25), and connects the movable terminal (38a) to the second fixed terminal (
38c). Thereby, the audio signal applied to the first connection terminal section (1) is divided between the second fixed terminal (28c) of the third changeover switch (28) and the movable terminal <28a.
) and the movable terminal (38) of the movable switch (38).
a) - Second fixed terminal (38c) - Fourth changeover switch (2
9) is applied to the line transformer (20) through the path passing through the second fixed terminal (29c) and the movable terminal (29a). Thereby, the line transformer (20) applies the audio signal to the recording amplifier circuit (11) via the second recording switch (13).

The recording amplifier circuit (11) amplifies the applied audio signal and applies it to the recording head (9).Therefore, the recording head (9) connects the running magnetic tape (6) to the first connection terminal. The recording operation of the audio signal added to section (1) is performed.

Next, the operation of reproducing and emitting sound signals recorded on the magnetic tape (6) as described above will be explained. First, close the call switch (25), and then connect the relay circuit (22).
The power supply voltage is supplied to the switch control circuit (24). In this state, the playback head (10) is placed at a position where the audio signal recorded on the magnetic tape (6) can be played back.
) are set closer to each other by mechanical means, and the operation switch (8) is turned on to operate the drive motor (7) to run the magnetic tape (6), thereby causing the audio signal to be transmitted through the playback head (10). It will be played. The reproduced audio signal is input to the first amplifier circuit (14), amplified, and output. In such a state, if the telephone (4) connected to the second connection terminal (N) is in the on-footer state, the off-footer detection circuit (21) first detects the usage state of the telephone (4); ) is in an on-footer state, it does not output any detection output and maintains a standby state. Therefore, since the telephone 1 (4) is in the on-hook state, the interlocking switch (23), which is turned on when the off-footer detection circuit (21) detects the off-hook state, remains in the off-state, and the relay circuit (
Since both the switch control circuit (22) and the switch control circuit (24) are not activated and are in an inoperative state, the first switch (22), which switches when the switch control circuit (24) is activated,
15) and the second switch (19) correspond to the inoperative state of the switch control circuit (24), and respectively:
Terminal (15g) connected to the second amplifier circuit (16>),
(19a). Therefore, the second amplifier circuit (1
Since the switch 6) is in operation by receiving the power supply voltage through the second switch (19), the audio signal amplified by the first amplifier circuit (14) is input through the first switch (15). . The input audio signal is passed through the second amplifier circuit (16
) is amplified for sound emission and added to the speaker (17), and the sound reproduced from the magnetic tape (6) is emitted to the outside via the speaker (17).On the other hand, the second connection terminal part ( The handset (
When the telephone (4) is placed off-hook in order to listen to the audio that has been reproduced privately using The off-hook voltage between the telephone lines is switched to the second transfer switch (27
), the off-hook detection circuit (21) detects the off-hook state of the telephone (4) and turns on the interlock switch (23). As a result, when the communication switch (25) is closed, the first relay circuit (22) and the switch control circuit (24) receiving the electric current and pressure are activated and become operational. Therefore, the first relay circuit (22) is switched by activation of the first relay circuit (22). Second. 3rd and 4th changeover switch (26)
, (27), (2g), (29) are each first
Fixed terminals (26b), (27b), (28b)
, (29b), each movable terminal (26a)
, (27a), (28a), and (29a). Thereby, the telephone (4) connected to the second connection terminal section (2) is switched to the second terminal of the first changeover switch (26).
The fixed terminal (26c) and the second switch (27)
The first fixed terminal (26) of the first changeover switch (26) switched by the switching operation becomes incapable of receiving the operating voltage supplied from the telephone line via the fixed terminal (27c).
In b), the power supply voltage of VCC is applied through the first resistor (30) and the second changeover switch (27).
Since the first fixed terminal (27b) of ) is connected to the ground, the telephone (4) is in an operating state regardless of the switching operation. Furthermore, the switch control circuit (24)
1. Second switch (15), (19
) is the terminal in contact with the third amplifier circuit (18)<15b),
(19b), and the third amplifier circuit (18) receives the power supply voltage via the second switch (19) and is activated.Therefore, the reproduction signal amplified by the first amplifier circuit (14) is activated. The audio signal is sent to the terminal (15b) of the first switch (15).
) to the third amplifier circuit (18), and via the line transformer (20), from the movable terminal (28a) of the third changeover switch (28) to the first fixed terminal (28b) and into the second
A path that connects to the R' terminal of the connection terminal section (2) and a line transformer (20) passes from the movable terminal (29g) of the fourth changeover switch (29) to the first fixed terminal (29b).
The second connection terminal part (?
) to the operative telephone (4). Thereby, the reproduced audio signal is emitted from the handset (3) of the telephone (4) as a reproduced voice, so that it can be heard personally. When the handset (3) is returned and the telephone (4) is placed on-hook in order to end the listening operation via the handset (3), the off-footer detection circuit (21) returns to the standby state and the interlocking switch is turned off. (23) is turned off. As a result, the relay circuit (22>) and the switch control circuit (24) become inoperative.Therefore, the first, second, third, and third switches are switched at the same time as the relay circuit (22) is activated.
Fourth changeover switch (26), (27), (28
), (29) movable terminals (26a), (27a
), (28a), (29a) are the respective second fixed terminals (26c), (27c), (28c), (
29c) and connect. Furthermore, the first. The second switches (15) and (19) are also switched to be in contact with the terminals (15a) and (19a) that are in contact with the second amplifier circuit (16) due to the inoperation of the switch control circuit (24). At this time, if the operation switch (8) is still in the ON state, the magnetic tape (6) is running, and the reproduction operation is being performed, the reproduction sound will be emitted again through the speaker (17). Furthermore, in order to stop the reproduction operation of this embodiment in such a state, the running of the magnetic tape (6) is stopped by turning off the operation switch (8) and making the drive motor (7) inactive. At the same time, the reproducing operation is stopped by separating the reproducing head (10) from the magnetic tape (6).

Next, an explanation will be given of the operation when a calling signal arrives while the above-described playback/sound emitting operation is being performed. First, when sound is emitted through the speaker (17),
Since the call switch (25) is in the on state, the movable terminal <38a> of the movable switch (38) is connected to the first fixed terminal (
38b), and the first. Second. Third
．． Fourth changeover switch (26), (27), (2
8), (29) movable terminal (26a), (27
a), (28a).

(29a) is the second
Fixed terminal (26c), (27c), (28c)
, (29c). Furthermore, the first. The second switches (15) and (19) are terminals (15a) that are in contact with the second amplifier circuit (16) when the switch control circuit (24) is not activated.

(19a) is connected. In such a state, the audio signal being reproduced from the magnetic tape (6) via the reproduction head (10) is amplified by the first amplifier circuit (14), and then sent to the first switch (15) and the second amplifier circuit (16). )
The sound is emitted through the speaker (17). The sound reproduced through the above-mentioned route is emitted, but when a calling signal arrives at the first connection terminal section (1) via the telephone line in such a state, the calling signal is transmitted to the first connection terminal section (1). The movable terminal (38a) of the movable switch (38) - the first fixed via the path passing through the second resistor (33) via the T terminal of the terminal section (1) and the R terminal of the first connection terminal section (1). Terminal (38b
) - a path passing through the second capacitor (34) to the ringing signal detection circuit (32). The calling signal detection circuit (
32) detects the calling signal and applies an output signal to the astable multi-circuit (35) and the reset circuit (37). In the astable multi-circuit (35), the calling signal detection circuit (3
The output signal of 2) is converted into a notification signal and the light emitting diode (
36) to indicate that a calling signal has arrived. Furthermore, when the output signal of the calling signal detection circuit (32) is input for 3 seconds or more, the reset circuit (37) performs an operation to stop the operation of the recording/reproducing means (3) which is performing the reproducing operation. At the same time, the relay circuit (22) and the switch control circuit (24), which are not activated in such a state, are maintained in an inoperative state.

Further, the calling signal is transmitted to the second connecting terminal section ( ?
) and the path for applying voltage to the T' terminal of the first connection terminal (
It passes through the second fixed terminal (27c) of the second changeover switch (27) connected to the R terminal of 1) and the path where the movable terminal (27a) applies the voltage to the R' terminal of the second connection terminal section (?). Second
It also joins the telephone (4) in the on-footer state connected to the connection terminal (?) and operates the built-in call bell of the telephone (4), using the arrival of the call signal together with the light emitting diode (36). Notify the person. When the user notices the arrival of the calling signal and takes the handset (3) off-hook,
The notification operation by the light emitting diode (36) and the call bell is stopped. At the same time as the operation, the movable terminal (38a) of the movable switch (38) comes into contact with the second fixed terminal portion (38c). Further, the off-hook detection circuit (21) is connected to the telephone (4).
) is detected and the interlocking switch (23) is turned on, but the relay circuit (22) and switch control circuit (24) are held inactive by the output signal of the ringing signal detection circuit (32). It won't start because it's running.

Therefore, the first switch which should be switched by activation of the relay circuit (22). Second. Third. 4th changeover switch (26),
Since (27), (28), and (29) are not switched, a conversation can be made with the caller using the handset (3). When the handset (3) is turned on-hook after the end of the call, the off-hook detection circuit (21) switches the interlocking switch (23) from the on state to the off state, thereby causing the relay circuit (22) and the switch control circuit (24) to switch from the on state to the off state. The inoperable state is released, and the device of the present invention enters the standby state.

Next, when listening to the fully reproduced audio signal via the handset (3) of the telephone (4), first the call switch (25) is turned on as described above, so the movable switch (38) is turned on. The movable terminal (38a) is the first fixed terminal (
38b). Further, in such a state, since the handset (3) of the telephone (4) is off-hook, the off-hook detection circuit (21) detects that the handset (3) of the telephone (4) is off-hook.
detects the off-hook state of the first . Second. Third.
Fourth changeover switch (26).

(27), (28), (29) movable terminals (2
6a), (27a), (28a), (29
a) to each first fixed terminal (26b), (27b),
(28b), (29b) and the first
．． The second switches (15) and (19) are connected to terminals (15b) and (19b) connected to the third amplifier circuit (18). Therefore, the audio signal being played back from the magnetic tape (6) by the playback head (10) is amplified by the first amplification circuit (14) and then passed through the first switch (15) to the third switch.
Amplifier circuit (18) - Added to line transformer (20).

Further, in the line transformer (20), the movable terminal (28a) of the third changeover switch (28) - the first fixed terminal (28)
b) - Route of the R' terminal of the second connection terminal section (?) and the movable terminal (29a) of the fourth changeover switch (29) - the first fixed terminal (29b) - the first capacitor (31) - the second connection An audio signal is added to the second connection terminal section (?) via the T' terminal path of the terminal section (?), and is emitted from the handset (3) of the telephone (4). In such a state, when a calling signal arrives at the first connecting terminal section (1) via the telephone line, the calling signal is transferred to the second resistor (33) which is fully connected to the T terminal of the first connecting terminal section (L). The route passing through and the first connection terminal part (↓)
Input to the calling signal detection circuit (32) via a path passing through the movable terminal (37a) of the movable switch (37) connected to the R terminal of the movable switch (37), the first fixed terminal (37b), and the second capacitor (34). do. As a result, the calling signal detection circuit (
32) detects the ringing signal and applies the output signal to the astable multi-circuit (35) and the reset circuit (37). In the astable multi-circuit (35), the calling signal detection circuit (32)
) converts the output signal of the light emitting diode (3
6) is lit to indicate that a calling signal has arrived.

Furthermore, the reset circuit (37) stops the playback operation of the recording and playback means (5) which is performing the playback operation when the output signal of the call signal detection circuit (32) is applied for 3 seconds or more, and the relay circuit (22) In order to activate the switch control circuit (24), the light emitting diode (36) lights up for 3 seconds to notify the user of a calling signal, and the reset circuit (37) activates the recording/reproducing means (mutual). The regeneration operation is stopped and the relay circuit (2
2) and the switch control circuit (24) are rendered inactive.Thereby, the first, second, third, and fourth changeover switches (26), (27).

(28), (29) movable terminals (26a), (
27a), (28a), (298) are the second fixed terminals (26c), (27c), (28c),
(29c), and the first . The second switches (15) and (19) also connect to the second amplifier circuit (1
6) so as to be in contact with the terminals (15a) and (19a) connected to the terminals (15a) and (19a). Furthermore, at that time, the movable switch (38
) is in contact with the second fixed terminal (38c). By this switching operation, a telephone line is connected to the telephone set (4), and the user can talk to the caller via the handset (3). Then, after the call ends, turn the handset (
3), the device of the present invention goes into a standby state.

(G) Effects of the Invention The telephone recording and reproducing device of the present invention is capable of transmitting the audio signal being played back by the recording and reproducing means to the telephone during listening operation using the handset of the telephone connected to the device. When the calling signal is transmitted over the line, the playback operation of the recording and playback means is automatically stopped and the telephone is connected to the telephone line, so that the caller can be contacted preferentially via the handset. Call operation is now possible. Therefore, even when listening to the voice signal being reproduced using a handset, it is now possible to reliably recognize the low tone of the calling signal.

[Brief explanation of the drawing]

The figure is a block diagram showing an embodiment of the telephone recording and reproducing device of the present invention. Explanation of main drawing numbers (3)...Telephone receiver, (21)...Off-hook detection circuit, (22)...Relay circuit, (23)...
・Interlocking switch, (32)...Call signal detection circuit,
(37)...Reset circuit.

Claims (1)

[Claims] (1) A first connection terminal connected to a telephone line and to which signals transmitted and received via the telephone line are applied; and a recording operation of the signal applied to the first connection terminal; A recording and reproducing means that can also perform a signal reproducing operation, a second connecting terminal section for connecting a telephone that operates using a handset through the telephone line, and a second connecting terminal section for connecting a telephone that operates by using a handset, and a second connecting terminal section for connecting a telephone that operates by using a handset, and a second connecting terminal section for connecting the handset of the telephone through the second connecting terminal section. When the handset is in a raised state when the handset is in a raised state when the handset is raised or lowered, the telephone is switched to a first state in which a signal reproduced by the recording and reproducing means is applied to the telephone;
and a state switching means that switches to a second state in which the telephone line is connected to the telephone when the handset is hung up; a ringing signal detection circuit that switches and holds the state switching means in a second state and connects the telephone to a telephone line; and upon receiving an output signal from the ringing signal detection circuit, the state switching means is switched to the second state. A recording and reproducing device for a telephone, comprising a reset circuit for stopping the operation of the recording and reproducing means.