JPH02202751A - Cordless telephone set - Google Patents

Abstract

PURPOSE:To use a cordless telephone set as an automatic answering telephone, as well by providing a base set with an equipment which sends a preliminarily recorded response message to a trunk line at the time of incoming call and records a business message from an originating subscriber. CONSTITUTION:In the automatic answering set state, a base set 1 closes the trunk line, and a recording and reproducing device 18 of the set 1 sends the preliminarily recorded response message to the trunk line and records the business message from a caller thereafter. When the automatic answering state is set, the automatic answering set commanding means of a handset 2 is operated to send an automatic answering set signal to the handset 1, the automatic answering state is easily set. When the business message is recorded, a reproducing command signal is sent to the set 1 by operating a reproducing commanding means of the handset 2 to reproduce the business message by the device 18 of the set 1, and this message is sent from the call transmission part 11 of the set 1 to the call reception part 22 of the handset 2 and reproduced from the speaker 29 of the handset 2.

Description

DETAILED DESCRIPTION OF THE INVENTION <Field of Industrial Application> The present invention relates to a cordless telephone equipped with an answering machine function.

<Prior Art> In recent years, cordless telephones have become popular, in which a handset with a built-in microphone and speaker is provided with a dial and a function switch, and a base set connected to a central office line and the handset are connected wirelessly. In addition, as another type of telephone, answering machines, which automatically answer a ringing call and send out a pre-recorded response message, and then automatically record a message from the caller, are becoming widely used. be.

<Problem to be solved by the invention> However, there is no cordless telephone with an answering machine function or a cordless answering machine, so if you want to use both functions, you have to purchase the answering machine and the cordless telephone separately. It is necessary to connect the telephones in parallel to the central office line and use each telephone independently, and there is a demand for a cordless telephone that is equipped with an answering machine function and allows the handset to be moved freely while making calls. It had been.

<Means for Solving the Problems> The present invention solves the above-mentioned iI! The purpose of the present invention is to provide a cordless telephone equipped with an answering machine function and capable of performing various operations such as answering the answering machine and recording calls from the handset.

For this purpose, the cordless telephone of the present invention has a central office line circuit connected to a central office line, a call transmitter, and a call receiver, and transmits and receives calls to and from the handset wirelessly while making calls to the central office line. It has a base set for making and answering calls, a pushbutton dial switch, a speaker and a microphone for calls, a call receiving section, and a call transmitting section, and transmits and receives calls wirelessly between the base set and the base set via an antenna. A cordless telephone equipped with a handset and, when receiving a call from a caller, plays a prerecorded response message and sends it to the central office line, and then receives and records a message from the caller. A playback device is provided on the base set.

Further, in the above-mentioned cordless telephone, the handset is provided with a call recording command means for generating a call recording command signal for recording the voice during the call and sending it to the base set.

Further, in the above-mentioned cordless packing machine, a reproduction command means for generating a reproduction command signal for reproducing the business message and transmitting it to the base set is provided in the handset, and the reproduced business message is transmitted to the base set. The information is transmitted from the transmitting section of the base set to the receiving section of the handset, and is configured to be played from the speaker of the handset.

Further, in the above-mentioned cordless telephone, the handset is provided with an answering set command means for generating an answering set command signal for setting an answering machine recording state and sending it to the base set.

Furthermore, the cordless telephone is provided with a display means on the handset that operates in response to an operation display signal output from the base set to the handset and displays the operating state of the recording/reproducing device.

Function: This cordless phone allows you to make and receive calls using the handset at a location away from the base set.
In addition to being able to make phone calls, it can also be used as an answering machine.In other words, when the answering machine is set and there is an incoming call, the base set will block the central office line.
The recording and reproducing device of the base set transmits a prerecorded response message to the central office line, and then records the business message from the caller. Note that when setting the handset to be away, the answering setting can be easily set by operating the answering setting command means of the handset and sending an answering setting signal to the base set.

In addition, when the message is recorded, when the playback command means of the handset is activated and a playback command signal is sent to the base set, the recording and playback device of the base set plays the message, and the reproduced message is is sent from the transmitting section of the base set to the receiving section of the handset and played from the handset's speaker. Therefore, even if the handset is located far from the base set (
Typically, the base set is installed in a fixed location, and the handset is placed at a user's desired location remotely from the base set. )−
The user can play back the message and listen to the message without having to visit the base set.

Furthermore, when making a telephone call, or during a telephone call, there may be cases in which the user wishes to record the telephone call, and in such a case, the telephone recording command means of the handset may be operated to generate a telephone recording command signal. If you send it to the base set, you can automatically operate the recording and playback device to record a call without having to go to the base set. In addition, if the display means provided on the handset displays the operating status of the recording/playback device on the base set side, such as recording, playback, rewinding, etc., the user can record the recording on the base set from the handset. The operating status of the playback device can be easily checked.

<Example> Embodiments of the present invention will be described below based on the drawings.

FIG. 1 shows a block diagram of a base set 1 of a cordless telephone. The main components include a bell receiving circuit 14 that receives a bell signal from a telephone line, a data signal input section 1 that receives a data signal, a recording/reproducing device 18, and a CPU 13 that performs control processing such as making and receiving calls.

The call transmitter 11 includes a bandpass filter, an oscillator, and an FM
It consists of a modulator, etc., and its transmission output side is connected to the antenna 16, and outputs a specific frequency signal that is FM-modulated according to the call tone and data signal arriving via the central office line to the antenna 16, and transmits it to the handset 2.

The call receiving unit 12 includes a bandpass filter, an FLF amplifier, a mixer, a local oscillator, an intermediate frequency circuit, a demodulation circuit, a filter, etc., and receives a transmission signal (call tone and data signal) from the handset 2 via an antenna 16. , the audio signal is output to the central office line circuit 15, and the data signal is output to the C
Output to PU13.

The CPU 13 is a one-chip CPU that incorporates a ROM, etc. on the same chip.Based on program data written in the ROM in advance, the CPU 13 performs telephone outgoing and incoming calls, recording and playback processing, and when a bell call is received, as described below. The 0 office line circuit 15, which performs control processing such as an answering machine function that automatically responds and sends out a prerecorded response message, and then records a message from the caller, receives a control signal from the CPtJ 13. In response to this, the office line is blocked or opened, and the call signal from the office line is output to the call transmitter 11, and the call receiver 1
The communication signal from 2 is configured to be transmitted to the central office line.

Further, the bell receiving circuit 14 is connected to the office line terminal, receives a bell signal coming from the office line, and sends the signal to the CPU 13.

The data signal input unit 1f inputs a coded call recording command signal and playback command signal sent from the handset 2, which will be described later, via the call receiving unit 22, and sends the signal to the CPU 13.

Reference numeral 18 denotes a tape deck type recording and reproducing device, which has a response tape 18a for recording a response message and a message tape 18b for recording a business message, and a response tape drive circuit 31 or a business tape drive according to a signal from the CPU 13. The circuit 32 is activated to record and reproduce the response tape 18a and the business tape 113b. Reference numeral 19 denotes a recording and reproducing amplifier connected to the recording and reproducing device 18, which amplifies the voices reproduced and output from the response tape 18a and the business tape 18b and sends the amplified voices to the office line circuit 15 or the call transmission section 11.
The audio signal from the connected microphone 34 is recorded on the response tape IB.
a, and the voice signals from the office line circuit 15 and the call receiving section 12 are recorded on the message tape 18b for recording the message or the call.
Output as recorded. This recording/playback amplifier 19 is controlled to switch between recording and playback according to a signal from CPU t3.

FIG. 2 shows a block diagram of the handset 2. As shown in the figure, the circuits of the handset 2 include a call transmission section 21, a call reception section 22, a data signal input section 23, a data signal output section 24, and each circuit. The call transmission unit 21, which is mainly composed of a CPU 20 that performs control processing, includes a bandpass filter, an oscillator, an FM modulator, etc., and the transmission output side is connected to an antenna 26, and receives input through a microphone 27 and an amplifier 41. A specific frequency signal that is FM-modulated according to the call tone and the data signal from the data signal output unit 24 is output to the antenna 26 and transmitted to the base set 1 side.

The call receiving unit 22 includes a bandpass filter, an RF amplifier,
It consists of a mixer, local oscillator, intermediate frequency circuit, demodulation circuit, filter, etc., and is connected to the base set 1 via the antenna 26.
It receives and demodulates the transmission signal (call tone and data signal) from the , and the call tone is sent to the speaker 28 through the amplifier 42 .
The data signal is sent to the CPU 20 through the data signal input section 23.
connected to be sent to.

40 is a hook switch provided on the handset, which outputs hook-on and hook-off signals to the CPU 20. 4
5 is a central office line lamp that lights up when the central office line is blocked, 46 is an absentee lamp that lights up when an absentee setting is performed, and the CPU
20, and 47 is a display device such as an LCD provided in the handset 2, which is turned on by a signal indicating the operating status of the recording/playback device 18 sent from the CPU 13 of the base set 1 to the CPU 20 of the handset 2. Accordingly, characters such as "Playing", "Recording", and "Rewinding by 1" are displayed.

The CPU 20 is a one-chip CPU that incorporates a ROM, etc. on the same chip.Based on program data written in the ROM in advance, the CPU 20 sends hook-on and hook-off signals to the data signal output section 24, and receives an incoming signal from the data signal input section 23. A rechargeable battery 43 is provided as a power source within the handset 1 that performs control processing such as making the ringtone speaker 29 sound when input.

44 is a push-button dial switch provided on the handset 2, which has number buttons from "0" to "9" and "*" and "#".
Buttons (key switches) such as function buttons for "" and "shortcut" are provided, and when a button is pressed, a signal corresponding to the button is sent to the CPU 20. Then, in response to a command from the CPU 20, a so-called PB scratch signal, which is a combination of two different audible frequency signals, is sent from the data signal output section 24 to the call transmission section 21 according to the operated push button.This push button dial switch 44 is used to input various command signals in addition to generating dial signals.
For example, codes such as "3" and "*" are used as a call recording command signal, "4Jr*J" is used as a message playback command signal, and "5" and "*" are used as an answering machine command signal. When you input a command by operating a switch, that command, that is, a command signal, is sent to the base set l.
sent to. Therefore, the above-mentioned call recording command means, playback command means, and answering machine command means are composed of the push button dial switch 44, the CPU 20, the data signal output section 24, and the call transmission section 21.

Next, I will explain the basic operation of a cordless phone.
First, when making a call outside, the user operates the hook switch 40 of the handset 2 to the off-hook side.

As a result, the hook-off signal is sent from the data signal output section 24 to the call transmitting section 21, and the hook-off signal is sent from the call transmitting section 21 to the base set 1 via the antenna 26. In the base set 1, this hook-off signal is received by the call receiving section 12 via the antenna 16, and the hook-off signal is received by the CPU 1.
3 sends a control signal to the office line circuit 15 to block the office line.

In this state, the user inputs the telephone number of the telephone light using the push button dial switch 44. Then,
PB corresponding to that dial from the data signal output section 24
The signal is sent to the double signal call transmission section 21. The call transmission section 21 of the handset 2 transmits the PB multiplied signal to the base set 1 via the antenna 26, the PB multiplied signal is received by the call reception section 12 of the base set 1, and the PB damaged signal is transmitted via the central office line circuit 15. Sent to the central office line. When the person on the other end of the line answers the phone, the call begins.

The user's voice is input from the microphone 27 of the handset 2, transmitted to the base set l via the call transmitter 21 and the antenna 26, this audio signal is received by the call receiver 12 of the base set 1, and then The audio signal is sent from the office line circuit 15 to the office line.

On the other hand, the voice from the other party's telephone is sent from the office line circuit 15 of the base set 1 to the call transmitter 11, and then transmitted to the handset 2 via the antenna 16. In the handset 2, this audio signal is received by the antenna 26 and the call receiving section 22, and the audio signal is sent to the speaker 28 via the amplifier 42, so that the user can hear the other party's voice from the speaker 28.

On the other hand, when a call is received from outside and a bell signal arrives at the office line terminal, the bell receiving circuit 14 of the base set 1 receives this and outputs the signal to the CPU 13. At this time, the CPU
13 sends a signal to the office line circuit 15 to block the office line, and also sends an incoming call signal to the call transmitter 11. This results in
The incoming call signal is transmitted to the handset 2 from the call transmitter 11 and the antenna 16, and the antenna 2 of the handset 2
6. Received by the call receiving section 22. This incoming call signal is sent to the CPU 20 from the data signal input 81S23, and the CPU 20 causes the ring tone speaker 29 to sound. The user now knows that there is an incoming call from outside and operates the hook switch 40 of the handset 2 to the off-hook side.

At this time, a hook-off signal is sent to the CPU 20, and the
20 sends this hook-off signal to the call transmitter 21 via the data output unit 24;
is transmitted to the base set 1 via the antenna 26.

In the base set 1, when this hook-off signal is received in the call receiving section 12, the CPU 13 operates the central office line circuit to block the central office line, and the user is now able to talk to the caller from an external telephone. becomes.

By the way, when the user wishes to record a telephone call, the user inputs a command for recording the telephone call, r3" r$, using the pushbutton dial switch 44. Then, data signal output section 2
4, a PB damage signal command signal corresponding to that push button is sent to the call transmitter 21. The call transmitting section 21 of the handset 2 transmits the command signal to the base set 1 via the antenna 26, this signal is received by the call receiving section 12 of the base set 1, and the CPU 13 receives the command signal via the data signal human power section 17. Input command signal.

As shown in the flowchart of FIG. 3, the CPU 13
When a command is input manually, a request flag corresponding to the command is set in step 7o, and further, as shown in the flowchart of FIG. 4, mode switching is performed according to the set request flag.

Since the call recording request flag is set here, the process advances from step 80 to step 84, and the call recording mode is entered.

When entering the call recording mode, the CPU 13 of base set 1
As shown in FIG. 5, in step 9O, a signal is output to the message tape drive circuit 32 to drive the message tape 18b, and in step 92, the recording/playback amplifier 19 is switched to the recording side to start recording/playback. The message tape side of the device 18 is placed in a recording state.

In this state, the call tone of the other party arriving via the office line is input from the office line circuit 15 to the recording and playback amplifier 19, and the call sound from the handset side is input from the call receiving section 12 to the recording and playback amplifier 19. Recording is done. In addition, while recording a call, the CPU 13 of base set 1
A signal indicating that recording is in progress is output to the CPU 20 of the device, and "Recording in progress" is displayed on the display 47 on the handset side.

Then, when the call ends and the user operates the hook switch 40 of the handset 2 to the on-hook side, a hook-on signal is transmitted to the base set 1 through the data signal output section 24 and the call transmission section 21. Base set 1 CPU
13, when a hook-on signal is input, the process proceeds from step 94 to step 96, and recording is stopped. At step 98, the call recording flag is reset and the call recording mode is exited. On the other hand, when a hook-on signal is input, the central line circuit 15
Operate to open the central line.

When operating the answering machine function, the user operates the push button dial switch 44 of the handset 2 and inputs commands such as "5" and "*" manually. Then, in the same way as above, this command is sent to the CPU 13 of the base set 1 &: This sets the request flag for the answering set, and the CPU 13 sends the command to the CPU 20 of the handset.
outputs a signal to turn on the absentee lamp 46, and
The user enters an absentee mode 82 as shown in FIG. 4, and performs processing as shown in FIG.

That is, in the absence mode, when a bell signal is input from the outside, the bell receiving circuit 14 receives the bell signal and transmits it to the C.
The CPU 13 proceeds from step 100 to step 110 to block the central office line, and then to step 1.
At step 20, the response tape drive circuit 31 is operated to drive the recording and reproducing device 18, reproducing the response tape 18a, and transmitting a response message to the central office line through the recording and reproducing amplifier 19 and the central office line circuit 15, thereby automatically responding.

When the response message is completed, the process advances from step 130 to step 140, where the response tape is rewound, the recording/reproducing amplifier 19 and the recording/reproducing device 18 are switched to the recording state, and the station j11 circuit! The business message received from the caller via 5 is recorded on the business tape tab. When the recording of the business message is completed, the process proceeds from step 150 to step 160, and when it is determined that a valid message for a certain period of time or more has been recorded, the process proceeds to step 170, where a signal is output to the CPU 20 on the handset 2 side and the handset is set. The absentee lamp 46 of No. 2 is turned on and off, and the central office line is opened at step 180. On the other hand, if it is determined in step 160 that the message is not valid for more than a certain period of time, the process immediately jumps to step 180 and the central office line is released.

In this way, the telephone that is set to answering automatically answers every time there is an incoming call, and records the message from the caller on the message tape tab.

On the other hand, if the user wants to play back the recorded business message, the user presses the pushbutton dial switch 44 of the handset 2.
For example, input the command "r4" r$ for playback mode. At this time, as above, C of base set 1
This command is sent to the PU 13, which sets a request flag for the playback mode, and the CPU 13 enters the playback mode 86 (FIG. 4) and executes the playback process shown in FIG. 7.

That is, first, in step 230, it is determined whether or not there has been a recording of a business message. If there is a recorded business message, the process then proceeds to step 240, where the CPU 13 operates the business tape drive circuit 32. The message tape tab is returned one time, and when it is determined in step 250 that the first return is completed, the process proceeds to step 260, and the message tape drive circuit 32 is operated to drive the message tape 18b, and at the same time, recording and playback are performed. The amplifier 19 is operated for regeneration. It should be noted that the CPU 13 of the base set 1 operates while the recording/playback device 18 is operating.
The operation display signal is transmitted to the CP of handset 2 according to the state.
It is output to U20, and the display 47 displays "Rewinding by 1" or "Reproducing".

The reproduced audio signal is sent to the call transmitter 11 of the base set 1.
is sent wirelessly to the call receiving section 22 of the handset 2,
The reproduced sound is emitted from the speaker 28 via the amplifier 42. This allows the user to listen to the message at the location of the handset 2. When the reproduction is completed, the reproduction of this business message is terminated in step 270.

In the above embodiment, various commands are input through the pushbutton dial switch, but in addition to the dial switch, the handset 2 is provided with a switch for answering, a switch for recording calls, and a switch for playback. You may also manually issue commands from
In the above embodiment, a recording/playback device using a recording tape was used, but a device that uses a voice synthesis circuit and a semiconductor memory to encode the voice signal or its characteristic parameters, store the encoded information in the memory, and record the same is used. Of course, this is also possible.

<Effects of the Invention> As explained above, according to the cordless telephone of the present invention, when a call is received from a caller, a pre-recorded response message is played back and sent to the central office line, and the caller receives a message from the caller. Since the base set is equipped with a recording/playback device that receives and records messages, one cordless telephone can also be used as an answering machine. In addition, the handset is equipped with a call recording command means that generates a call recording command signal for recording the voice during a call and sends it to the base set, so the user can hold the handset and record the voice during a call if desired. To easily record a call by performing a call recording operation on the spot.

Furthermore, since the handset is provided with a reproduction command means for generating a reproduction command signal for reproducing the business message and sending it to the base set, the user can operate the handset without having to go to the base set. You can easily listen to business messages by operating from a certain location.

Additionally, the handset is equipped with an answering command means that generates an answering command signal and sends it to the base set to set the answering machine to a state where recording is performed. Therefore, the handset can be easily set to the answering mode from the position where the handset is located. can. This is convenient because if the user has something to do and does not want to receive a call, that is, if the user wants to be away for a certain period of time, the user can easily set the phone to the away mode from the handset's position.

[Brief explanation of the drawing]

The figures show one embodiment of the present invention. FIG. 1 is a block diagram of a base set of a telephone, FIG. 12 is a block diagram of the handset, FIG. FIG. 5 is a flowchart of the call recording mode, FIG. 's6 is a flowchart of the absentee mode, and FIG. 7 is a flowchart of the playback mode. DESCRIPTION OF SYMBOLS 1... Base set, 2... Handset, 11... Call transmitter, 12... Call receiver, 15... Office line circuit, 18... Recording/playback device, 21-... Call Transmitting unit, 22... Call receiving unit, 27... Microphone, 28... Speaker. Patent application Person 10IJ-+l +I-IN clllN CSJ figure figure figure

Claims (5)

[Claims] (1) A base set that has a central office line circuit connected to the central office line, a call transmitter, and a call receiver, and that makes and responds to the central office line while transmitting and receiving calls wirelessly to the handset. , a handset having a push-button dial switch, a speaker and microphone for calling, a call receiving section, and a call transmitting section, and wirelessly transmitting and receiving calls to and from the base set via an antenna. In the cordless telephone, when a call is received from a caller, a recording and playback device is provided in the base set to play a prerecorded response message and send it to the central office line, and to receive and record a business message from the caller. A cordless telephone characterized by: (2) The cordless telephone set according to claim 1, wherein said handset is provided with a call recording command means for generating a call recording command signal for recording voice during a call and sending it to said base set. (3) The handset is provided with a reproduction command means for generating a reproduction command signal for reproducing the business message and sending it to the base set, and the reproduced business message is transmitted from the transmission section of the base set to the handset. 2. The cordless telephone set according to claim 1, wherein said telephone set is configured to be transmitted to a receiving section of said handset and reproduced from a speaker of said handset. (4) The cordless telephone set according to claim 1, wherein the handset is provided with answering set command means for generating an answering set command signal for setting an answering machine recording state and sending it to the base set. (5) The cordless telephone set according to claim 1, wherein the handset is provided with display means that operates in response to an operation display signal output from the base set to the handset and displays the operating state of the recording and reproducing device.