JPH02210945A - Recorder remote controller for wireless telephone - Google Patents

Abstract

PURPOSE: To improve reliability by allowing the user of a transmitter/receiver who talks from a place far from the master device to control a recorder provided at the master device for recording a conversation content, and transmitting a confirmation signal from the master device to the transmitter/receiver. CONSTITUTION: When it is necessary for a user to record a conversation content during telephone conversation, the user presses any of recorder control switches Ss3 -S8 in order to remote control a recorder 27 at a transmitter/receiver side. Then, input terminals D1 -D6 of a corresponding encoder IC4 are turned into an H level, and a corresponding binary number is outputted to an output terminal. A serial data output is demodulated by a multiplexer ICa3 and matched with an address in a signal received in the states of address inputs A1 -A5 selected by switches S14 -S18 , the same binary data as the data transmitted from the transmitter/receiver side are outputted to data output terminals D1 -D3 . Then, the binary data are converted into decimal by a decoder IC7 so that the recorder 27 can be driven.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a device for remotely controlling a recorder attached to a base unit of a wireless telephone using a handset.

[Conventional technology]

2. Description of the Related Art Conventionally, there is a device in which a recorder is attached to a telephone to record notes to be taken during a telephone conversation.

[Problem to be solved by the invention]

By the way, since the recorder is attached to the base unit, when the base unit and handset are separated, such as in a wireless telephone, it is possible to take notes during a call from a place far away from the base unit of the telephone. There was the inconvenience of having to go to the base of the telephone and turn on the recorder whenever the need arose.

The present invention has been made focusing on the above problems,
A recorder control circuit provided in the base unit to operate the recorder attached to the base unit of the wireless telephone by wireless remote control from the handset, and a confirmation signal transmission circuit that wirelessly transmits the control status of the recorder to the handset. The object of the present invention is to provide a recorder remote control device for a wireless telephone equipped with a wireless telephone recorder.

[Means for Solving the Problems] The configuration of the radio telephone recorder remote control device of the present invention to achieve the above object is as follows: A recording remote control device for a radio telephone comprising a handset and a receiver having a control switch for the recorder, wherein the base unit is operated by receiving a wireless recorder control signal from the handset. and a confirmation signal transmitting circuit that wirelessly transmits the control state of the recorder to the handset, the recorder control circuit supplies the output signal of the detection circuit of the received radio wave to a demultiplexer, and the output signal of the demultiplexer is applied to a decoder that converts it into a control signal for the recorder, and a control signal output from the decoder is applied to a drive control terminal of the recorder and the confirmation signal generation circuit, and the confirmation signal generation circuit converts the control signal to the control signal of the recorder. The signal is applied to a multiplexer to convert it into corresponding binary data, and the binary data is applied to an adder circuit provided in the wireless transmission circuit of the base unit to be superimposed on the audio side transmission signal to be transmitted, and the demultiplexer and A common switch is used for address control of each multiplexer.

(Example〕 Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

On the base unit side, as shown in Figure 1, in the base unit of a normal wireless telephone, the output valid display terminal of the demultiplexer IC connected to the FM detector 19 is connected via an inverter G and a transistor Q. The data output terminals D1 to D1 are connected to a control terminal (not shown) of a conventional electronically driven recorder 27 via a decoder IC+, and are also connected to a data output terminal -03 of a multiplexer ICs, and the data output terminals D1 to D1 are connected to a control terminal (not shown) of a conventional electronically driven recorder 27 through a decoder IC+. The coupler 23 is connected to the transmission enable terminal TE of the multiplexer IC through an inverter G8, and the output terminal 011T of the multiplexer is connected to the output of the buffer multiplier 24 as well as the adder IC.

The demultiplexer IC is connected to the input terminal of the demultiplexer IC.

and multiplexer IC, address terminals A + -A
s is commonly connected to the switches S, ~Sll.

That is, FM detector 19, demultiplexer rct, decoder IC? , a drive control terminal (not shown) of the recorder 27 constitutes the recording control circuit of this embodiment, a multiplexer IC and an adder IC7 constitute the confirmation transmission circuit of this embodiment, and switches S14 to S18 constitute the recording control circuit of this embodiment. The switch used for address control is configured.

On the handset side, as shown in FIG. 2, in a normal wireless telephone, the output valid display terminal of the demultiplexer IC connected to the output of the FM detector 5 is connected to the tone oscillator 9 via the inverter G1. connected to the input of the NOR gate G, the output of which is connected to the standby switch Sob, and simultaneously connected to the input of the NOR gate G, together with the standby switch S2a;
Its output and the output terminal M[ITE of the dialer IO is connected to the input of the OR gate G6, which is connected to the muting 7, and the data output terminals D1 to D3 are connected to the decoder IC2.
are connected to the light emitting diode LED, ~LEDh, and the recorder control switch S, ~Sll is connected to the encoder IC.
, to the data input terminal of multiplexer IC3 through
~D3, and the output terminal OPL of the dialer 10 is connected to the transmission enable terminal TB of the multiplexer via an inverter G, and the output terminal OU of the multiplexer
T is connected to the input terminal of adder IC3 together with the output of audio amplifier 12, and address terminals A1 to A of demultiplexer IC and multiplexer IC5 are switch S,
- S13 are commonly connected.

That is, in FIG. 2, an FM detector 5, a demultiplexer IC, a decoder IC2, a light emitting diode LED, . . .
The LED 6 and the switches S and 313 constitute a circuit for checking the control state of the recorder by the base unit on the handset side, and the recorder control switch S.

~S&, encoder C4, multiplexer IC, adder IC2, and switches S and ~S13 constitute a circuit for transmitting signals to control the recorder.

Among the unexplained symbols in the drawing, ■, 15 is a high frequency amplifier, 2, 16 is a mixer, 3, 17 is a local oscillator, 4, 1
8 is an intermediate frequency tank intermediate device, 8 is an audio tank intermediate device, 11 is a keyboard, 13.25 is a modulator, 14.26 is a high frequency power amplifier, 20 is a [--n trap, 6゜21 is a buffer amplifier. vessel,
22 is a hybrid transformer, Gt, Gs are inverters, G4 is a band gate, R7-R2, is a resistor, C, -
C, is a capacitor, SL is a power switch, SP is a speaker, old C is a microphone, BAT is a battery, ^NTl
-ANTa is a transmitting/receiving antenna, A is a receiving section on the handset side, and B is a transmitting section on the handset side.

Next, the operation of the present invention will be explained in detail.

Normally, the output (JOPI) of the dialer 10 on the handset side is at a high (H) level, and the multiplexer I
C8 is in a transmittable state. A recorder control switch S is provided to remotely control the recorder 27 on the handset side when the user needs to record the contents of the call during a telephone conversation.
When any one of -S8 is pressed, the corresponding input terminal -D of the encoder IC becomes high (H) level, and the corresponding binary number is outputted to the output terminal.

For example, when switch S is pressed, the binary number "101" corresponding to the lO base number "5" is outputted from the encoder.

At this time, even if two or more switches are pressed at the same time, the binary number corresponding to the higher priority switch becomes the encoder output according to the internal priority order of the encoder IC.

Then, in the multiplexer IC, the resistor R3.

The oscillation frequency determined by RI6 and capacitor C4 is divided to output data, -D, and address input At.
The state of As is converted into serial data and output in a predetermined order. At this time, data input is high (H) and low (L)
The address input is selected from three states: high (11) and low (L) levels, and an open state.

That is, when switch S is pressed, switch S, ~SI
, when the state of multiplexer I is as shown in FIG.
The output of C3 is as shown in FIG. The output signal of the multiplexer IC and the output of the audio tank intermediate unit 12 are connected to the adder r.
c, and is FM modulated by the FM modulator 13 and transmitted wirelessly.

On the mother's side, this signal is received and F? Detected by a detector 19, a portion of the signal passes through a tone trap 20, removes the oscillation signal from the multiplexer IC, and transmits only the audio signal to the telephone line via a hybrid transformer 22, and a portion passes through the demultiplexer IC6. is input.

Resistance R21R! 3 and capacitor C3, the oscillation frequency of the demultiplexer IC & is determined by the multiplexer IC
Demodulates the serial data output of the input multiplexer IC□, which is matched with the oscillation frequency of 3, and outputs it to the switch S+a.
If the address matches the address in the signal received in the state of A, ~A5 selected by Sea, the received data in binary digits, which is exactly the same as that sent from the handset, is sent to the data output terminal D + 〜Ds, so this binary data is converted to 1 by the decoder IC.
This will be converted into a 0-decimal number and used to drive the normal recorder 27. At the same time, the output of the demultiplexer IC is also connected to the multiplexer IC, and is converted back into serial data by the above-mentioned action and sent to the hybrid transformer 2.
It is added to the output signal of No. 2 by an adder IC9, is FM-modulated by a gate modulator 25, and is transmitted wirelessly.

The second signal is again demodulated into binary data through the demultiplexer IC on the handset side and sent to the decoder IC! is converted into a decimal number and the corresponding light emitting diode LED lights up.
This will display whether the recorder control signal on the handset side has been accurately transmitted to the base unit side.

In addition, the standby switch 82i + 3211 on the handset side
If a call is received from outside while the device is in standby (STBY) state, the photocoupler 23 detects that current is applied to the telephone line, and in response to the interruption, the transmission enable terminal of the multiplexer IC3 is activated. The state of ■ is high (
H) and low (L) level, but if it is high (H) level, the multiplexer IC
, is interrupted, and in the case of low (L) level, the sending is continued and the corresponding demultiplexer IC,
The status of the output valid display terminal level is high (H) and low (L).
) is converted to level, low (L)
Tone oscillator 9 and NOR gate G only if the level.

When the input becomes high (H) level, the tone oscillator 9
is oscillated and muting is released at the same time, so that a tone oscillator signal is intermittently output from the speaker SP to notify that an external call has been received.

Furthermore, when making a call from the handset side, the output terminal OPL of the dialer 10 is intermittently set to low (L) level, and the demultiplexer I on the base side is activated by the above-mentioned action.
C, terminal ■ becomes low (L) Rehe/L/, and relay I? A call can be made by intermittent y.

〔Effect of the invention〕

Since the present invention is configured as described above, the following effects can be obtained.

That is, the recorder control circuit provided in the base unit allows a user of the handset who makes a call from a place far away from the base unit to control the recorder installed in the base unit in order to record the content of the call. Moreover, since the control state of the recorder can be transmitted from the base unit to the handset, a highly reliable recorder remote control device for a wireless telephone can be provided.

[Brief explanation of the drawing]

FIG. 1 is a circuit diagram of a wireless telephone recorder remote control device of the present invention according to an embodiment, and FIG. 2 shows a confirmation circuit and a recording control transmission circuit provided in the handset used in the embodiment shown in FIG. The circuit diagram and FIG. 3 are time charts of binary signals corresponding to the recorder control support contents shown in FIG. 1. IC &... demultiplexer, IC ma... decoder, Ice... multiplexer, IC9... adder,
314-31M...Switch, 19...FM detector, 27...Recorder. Agent Patent Attorney Nobuo Ogawa −

Claims (1)

[Scope of Claims] A recording remote control device for a wireless telephone comprising a base unit equipped with a recorder and a handset that transmits and receives data wirelessly between the base unit and has a control switch for the recorder. The base unit is provided with a recorder control circuit that operates upon receiving a wireless recorder control signal from the handset and a confirmation signal transmission circuit that wirelessly transmits the control state of the recorder to the handset, and the recorder. The control circuit supplies the output signal of the detection circuit of the received radio wave to a demultiplexer, supplies the output signal of the demultiplexer to a decoder that converts it into a control signal for the recorder, and converts the control signal output from the decoder to the recorder. and the confirmation signal transmission circuit, the confirmation signal transmission circuit supplies the control signal to a multiplexer to convert it into corresponding binary data, and transmits the binary data to the wireless transmission circuit of the base machine. A recorder remote control device for a radio telephone, comprising a common switch which is applied to an adder circuit provided in the adder circuit to be superimposed on the audio side transmission signal to be transmitted, and which is used for address control of each of the demultiplexer and the multiplexer.