JP2524664B2 - Telephone with recording function - Google Patents

Abstract

PURPOSE:To offer the telephone set provided with the automatic answering recording function securing privacy in the outside and in the home. CONSTITUTION:The telephone set is provided with a modulator-demodulator circuit (19) modulating a voice signal at recording and demodulating a voice signal modulated at reproduction. Moreover, a changeover device (22) is provided to select whether the voice signal is recorded through the modulator-demodulator circuit (19) or the modulator-demodulator circuit (19) is bypassed. When the automatic answering recording is commanded, a microcomputer (6) connects a voice control section (22) to the modulator-demodulator circuit (19), which modulates the voice signal and the voice signal after modulation is recorded by a cassette tape recorder (3). When the reproduction of the automatic answering recording is instructed by a reproduction key (26), the modulated message recorded by the cassette tape recorder (3) is demodulated and reproduced by the modulator-demodulator circuit (19).

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a telephone having an answering / recording function, which is equipped with a recording means (for example, a cassette tape deck) for recording an audio signal sent from an external telephone.

[0002]

2. Description of the Related Art Conventionally, there is known a telephone having an answering / recording function, which is equipped with a cassette tape deck for answering / recording a voice signal sent from an outside line telephone. You can record a message from the outside to a cassette tape with a cassette tape recorder.

Further, recently, cordless telephones having a plurality of cordless handsets have come into widespread use, and cordless telephones having an absence recording function have come into widespread use. In this cordless telephone, confidential communication is performed to prevent wiretapping. A device that transmits radio waves to a child device has been put into practical use.

FIG. 4 is a perspective view showing an appearance of a cordless telephone having a general absence recording function, and FIG. 5 is a block diagram showing a configuration of a base unit of a conventional cordless telephone having an absence recording function. FIG. 6 is a block diagram showing the configuration of a cordless telephone handset having a general absence recording function.

As shown in FIG. 5, the master unit (1) is an NCU.
The audio control unit (4) is connected to (2) and switches an audio signal to the transmitting side or the cassette tape recorder (3) side. The audio control unit (4) includes an NCU.
(1) A cassette tape recorder (3) for recording the voice signal that has passed through is connected, a confidential circuit (5) that modulates the voice signal that has passed through the NCU (1) is connected, and an answering machine setting key (18) (See FIG. 4A) ON /
A microcomputer (6) for switching control of the voice control unit (4) when turned off is connected.

An RF modulator (7) for transmitting and receiving is connected to the confidential communication circuit (5), and an antenna (8) is connected to the RF modulator (7).

Further, the microcomputer (6) is provided with an input button (9) for inputting a dial and the like, a display (10), an answering machine setting key (18) for setting an absence recording, and an instruction for reproducing a recorded message. The playback key (26) is connected.

On the other hand, as shown in FIG. 6, the slave unit (11) has an antenna (12) for receiving a radio wave transmitted from the antenna (8) of the master unit (1).
An RF modulator (13) for transmitting and receiving is connected to 2).

The RF modulator (13) has
A confidential circuit (14) for demodulating the received signal is connected, and the confidential circuit (14) has a microcomputer (15) for controlling the confidential circuit (14) and an amplifier (16) for amplifying the demodulated audio signal. Is connected to the amplifier (16), and the amplifier (16) converts the voice signal into a voice and produces a speaker (17).
Is connected.

Next, the operation will be described.

When talking with an external telephone connected to the telephone line from the handset (11), that is, when the recorded message setting key (18) is OFF, the microcomputer (6) operates from the recorded message setting key (18). The voice control unit (4) is switched to the confidential circuit (5) side by the OFF signal of.

The voice signal transmitted from the outside line telephone via the NCU (2) is sent to the confidential communication circuit (5) by the voice control unit (4) connected to the transmitting side.

Then, the voice signal is scrambled by the confidential circuit (5) to prevent eavesdropping, and then RF
The signal is transmitted from the antenna (8) to the slave unit (11) through the modulator (7).

Then, in the slave unit (11), the signal received by the antenna (8) is the RF modulator (1
3) is sent to the confidential circuit (14), and the confidential circuit (1
It is demodulated by 4) and becomes an audio signal.

Further, the demodulated voice signal is sent to the amplifier (1
It is amplified by 6) and is uttered by the speaker (17).

When the answering machine setting key (18) is in the ON state, the microcomputer (6) sends the voice control unit (4) to the cassette tape recorder (3) side by an OFF signal from the answering machine setting key (18). Switch.

The audio signal transmitted from the outside line telephone through the NCU (2) is sent to the cassette tape recorder (3) by the audio control unit (4) connected to the cassette tape recorder (3) side. , Messages are sequentially recorded on a cassette tape in analog (see FIG. 7).

[0018]

Since the conventional telephone having the absence recording function is constructed as described above, the cassette tape can be easily taken out and all the messages can be reproduced by other cassette tape recorders. There was a problem that it was difficult to protect privacy. Also,
At home, you can freely play messages,
There was a problem that it was difficult to protect privacy between parents and children and between siblings.

The present invention has been made to solve the above problems, and an object thereof is to obtain a telephone having an absence recording function capable of protecting privacy outside and at home.

[0020]

A telephone having an answering / recording function according to the present invention includes a recording means for answering / recording a voice signal sent from an outside line telephone, and a voice signal for modulating the voice signal and the voice signal modulated at the time of reproduction. From the modulation / demodulation circuit for demodulation, the switcher that switches between recording the voice signal through the modulation / demodulation circuit or bypassing the modulation / demodulation circuit, the answering recording instruction key for instructing whether or not to perform absence recording, and the absence recording instruction key or the playback key. And a control means for controlling the switching of the switching device by the signal of. When the absence recording is instructed by the absence recording instruction key, the control means connects the switching device to the modulation / demodulation circuit to modulate the voice signal by the modulation / demodulation circuit before recording, and by the absence recording instruction key, the absence recording is performed. When not instructed, the switch is connected to the bypass side to talk.

Further, the telephone is a cordless telephone, and the modulation / demodulation circuit is used as a secret communication circuit for cordless communication.

Further, the control means is provided with a memory for storing a secret ID, a message and the like, and at the time of recording, the secret ID and the message sent from the outside line telephone are recorded in the head portion of the recording portion of the recording means, Alternatively, the secret recording ID and the address of the recording portion of the recording means are recorded in the built-in memory, and the message is recorded in the recording means. It may be configured to control.

[0023]

In the telephone having the absence recording function according to the present invention, when the absence recording is instructed by the absence recording instruction key, the switching means is connected to the modulation / demodulation circuit by the control means, and the voice signal is modulated by the modulation / demodulation circuit. The recorded voice signal is recorded by the recording means. When reproducing, the modulated message recorded in the recording means is demodulated and reproduced. When the absence recording is not instructed by the absence recording instruction key, the controller connects the switching device to the bypass side to talk.

[0024]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings.

FIG. 1 is a block diagram showing the configuration of a telephone having an answering machine recording function according to the present invention.

A base unit of a telephone having an absence recording function (1)
Has an NCU (2) and is connected to a changeover switch (25) for switching a voice signal sent from an external telephone via the NCU (2) to a modulation / demodulation circuit (19) side or a reproduction signal to a speaker (24) side. ing.

The changeover switch (25) is provided with a changeover section (20) for changing over to a modulation / demodulation circuit (19) side for modulating / demodulating an audio signal or a cassette tape recorder (3) side.
The audio signal modulated by the modulation / demodulation circuit (19) is converted into an RF modulator (7) or a cassette tape recorder (3).
A voice control unit (22) as a switch including a switching unit (21) for switching to is connected. A speaker (24) is connected to the changeover switch (25) via an amplifier (23).

Further, the voice control unit (22) is connected to a cassette tape recorder (3) for recording a voice message, and the voice control unit is controlled by an ON / OFF signal of the voice mail setting key (18) and a secret ID. A microcomputer (6) for switching and controlling (22) is connected, an RF modulator (7) for transmitting and receiving is further connected, and an antenna (8) for transmitting radio waves is connected to the RF modulator (7).

An input button (9) for inputting a dial is connected to the microcomputer (6), and a display device (10) is also connected (see FIG. 4A).

Further, the microcomputer (6) is connected to an answering machine setting key (18) for instructing the absence recording, and a reproduction key (26) for instructing the reproduction of the recorded message (see FIG. 4 (a)), the microcomputer (6) has a built-in memory (6a) for storing data and the like.

On the other hand, the slave unit (11) is similar to the above-mentioned conventional example.
As shown in FIG. 6, it has an antenna (12) for receiving radio waves transmitted from the antenna (8) of the base unit (1), and the RF modulator (13) is connected to the antenna (12). There is.

The RF modulator (13) has
The confidential circuit (14) for demodulating the received signal is connected, and the confidential circuit (14) includes a microcomputer (15) for controlling the confidential circuit (14) and an amplifier (16) for amplifying a voice signal. A speaker (17) is connected to the amplifier (16).

Next, the operation of this embodiment will be described.

When the answering machine setting key (18) is in the ON state, the microcomputer (6) switches the switching key (25) to the voice control section (22) side, and at the same time, the ON signal from the answering machine setting key (18). Switching unit (2) of the voice control unit (22)
Switch 1) to the cassette tape recorder (3) side.

Then, when a confidential ID (a secret code number, a telephone number, or a telephone number, which will be referred to as a telephone number hereinafter) is input from an outside line telephone (for example, "* 2 as shown in FIG. 3A). (* Is input), the microcomputer (6) stores the recording address of the cassette tape and the secret ID (phone number) in the built-in memory (6a) (for example, as shown in FIG. 2A). The address of B is stored in), the voice control unit (22)
The switching section (20) is switched to the modulation / demodulation circuit (19) side.

Then, the voice signal is transferred to the changeover switch (2
It is switched to the voice control unit (22) by 5), is sent to the modulation / demodulation circuit (19) through the route b of the switching unit (20), and is modulated by the modulation / demodulation circuit (19).

Further, the modulated voice signal is transferred to the switching unit (2
1) is sent to the cassette tape recorder (3), and the messages to the station 2, that is, the handset 1 are sequentially recorded on the cassette tape from the address B (FIG. 2A).
reference).

By the same operation, for example, a message for everyone is recorded from addresses A to B, and an address C is recorded.
From D to D, the message to the station 1, that is, the master unit is recorded, and from D, the message for all is recorded.

Then, when reproducing the confidentially processed message, the microcomputer (6) which receives the ON signal from the reproduction key (26) causes the switching unit (20) to operate the modulation / demodulation circuit (1).
At the same time as switching to the 9) side, the switching section (21) is connected to the cassette tape recorder (3). Furthermore, input button (9)
When the confidential ID (phone number) is input, the microcomputer (6) inputs the confidential ID (phone number).
Play only the data (message) at the recording address corresponding to.

For example, when the reproduction of the data of the recording address corresponding to the secret ID (phone number) of "* 1 *" is instructed, the data of the recording address not corresponding to the secret ID (phone number) (for example, FIG. (Data from addresses B to C shown in b) are skipped, and the reproduction time can be shortened.

When only the message for the slave unit 1 is reproduced, if the secret ID "* 2 *" is input, only the data from the addresses B to C are reproduced.

On the other hand, when the answering machine setting key (18) is in the ON state, and when the confidential ID (phone number) is not input from the outside line telephone, the microcomputer (6) switches the voice control unit (22) to the switching unit (20). Is switched to the cassette tape recorder (3) side, that is, the bypass side.

Then, the audio signal is sent to the cassette tape recorder (3) through the path a of the switching section (20),
It is recorded as an analog signal, that is, so that everyone can listen to the recording freely.

When reproducing a message recorded by an analog signal, the microcomputer (6) which receives the ON signal from the reproduction key, switches the switching unit (20) of the audio control unit (22) to the cassette tape recorder (3) side. That is, the reproduction is switched to the bypass side.

On the other hand, when talking with an external telephone connected to the telephone line from the handset (11), that is, when the recorded message setting key (18) is OFF, the microcomputer (6) sets the recorded message setting key (18). ), The changeover switch (25) is changed to the speaker side, the changeover section (20) of the voice control section (22) is changed to the modulation / demodulation circuit (19) side, and the changeover section (21) is changed to the RF modulator (7). )
Switch to the side.

The voice signal transmitted from the outside line telephone via the NCU (2) is sent to the modulation / demodulation circuit (19) by the switching unit (20) of the voice control unit (22).

Then, the voice signal is modulated / demodulated (19).
Is modulated to prevent wiretapping by the switching unit (21).
Then, the signal is transmitted from the antenna (8) to the slave unit (11) through the RF modulator (7).

Then, in the slave unit (11), the signal received by the antenna (8) is transmitted to the RF modulator (1
3) is sent to the confidential circuit (14), and the confidential circuit (1
It is demodulated by 4) and becomes an audio signal.

Further, the demodulated voice signal is sent to the amplifier (1
Amplified by 6) and generated by the speaker (17).

In the above embodiment, the telephone number is used as an example of the secret ID, but the secret number is not limited to this, and the secret code number (for example, "*" as shown in FIG. 3B).
1, 2, 3, 4, * ”) or preset telephone ID
Etc. may be used as the secret story ID. Further, in the above-mentioned embodiment, the recording address of the cassette tape and the secret ID (phone number) are stored in the built-in memory (6a), but not limited to this, each data recorded on the cassette tape. Secret message ID in the (message) header
May be recorded.

Furthermore, in the above-mentioned embodiment, the voice signal modulated by the modulator / demodulator (19) is demodulated, but the present invention is not limited to this, and it may be demodulated by another demodulator.

[0052]

As described above, according to the present invention, when the absence recording is instructed by the absence recording instruction key, the voice signal is secretly processed by the modulation / demodulation circuit and recorded, and by the absence recording instruction key. When the recording is not instructed, the modulation / demodulation circuit is configured to bypass the conversation so that the cassette tape cannot be easily reproduced by another device and privacy can be protected.

Further, since the modulation / demodulation circuit is configured to be used as a secret communication circuit for cordless communication, a device such as an IC can be shared and an increase in cost can be prevented.

Further, the control means is provided with a memory for storing a secret ID, a message, etc., and at the time of recording, the secret ID and the message sent from the external telephone connected to the network control unit are stored in the head portion of the recording portion of the recording means. The secret story I which is input at the time of recording or recording the secret story ID and the address of the recording portion of the recording means and the message is recorded in the recording means and is reproduced.
Since the recording means is controlled so as to reproduce only the data corresponding to D, the data of the corresponding part is reproduced only when the confidential ID is input to protect the privacy at home. It is also possible to shorten the reproduction time.

[Brief description of drawings]

FIG. 1 is a block diagram showing a configuration of a telephone having an absence recording function according to the present invention.

FIG. 2 is a diagram for explaining the operation of a telephone having an answering machine recording function according to the present invention.

FIG. 3 is a diagram for explaining the operation of a telephone having an answering machine recording function according to the present invention.

FIG. 4 is a perspective view showing a telephone having a general absence recording function.

FIG. 5 is a block diagram showing a configuration of a base unit of a telephone having a conventional absence recording function.

FIG. 6 is a block diagram showing a configuration of a slave unit of a telephone having a general absence recording function.

FIG. 7 is a diagram for explaining the operation of a conventional telephone having an absence recording function.

[Explanation of symbols]

 (2) NCU (3) Cassette tape recorder (6) Microcomputer (6a) Memory (18) Answering recording instruction key (19) Modulation / demodulation circuit (20) Switching unit (21) Switching unit (22) Voice control unit

Claims (3)

(57) [Claims] 1. In a telephone having an answering / recording function, which comprises a recording means for answering / recording a voice signal sent from an outside line, a modulation / demodulation circuit for modulating the voice signal and demodulating the voice signal modulated during reproduction, and the voice. A switch for switching whether to record a signal through the modulation / demodulation circuit or bypassing the modulation / demodulation circuit, an answering recording instruction key for instructing whether or not to perform absence recording, and a signal from the absence recording instruction key or the reproduction key And a control means for controlling the switching of the switching device, wherein the control means connects the switching device to the modulation / demodulation circuit to modulate an audio signal when the absence recording is instructed by the absence recording instruction key. It is characterized in that the switching device is connected to the bypass side when the recording is performed from the user and the absence recording is not instructed by the absence recording instruction key. Phone having a protect recording function. 2. A telephone having an answering machine recording function according to claim 1, wherein the telephone is a cordless telephone having a plurality of cordless handsets, and the modulation / demodulation circuit is used as a confidential communication processing circuit for cordless communication. 3. The control means comprises a memory for storing a secret ID, a message and the like, and at the time of recording, the secret ID and the message sent from an outside line telephone are recorded in a recording head portion of a recording medium of the recording means. Or the secret ID and the address of the recording portion of the recording means are recorded in the memory, the message is recorded in the recording means, and only the data of the portion corresponding to the secret ID is reproduced at the time of reproduction. A telephone having an absence recording function according to claim 1, wherein the telephone is controlled.