JPH01140842A - Telephone set system - Google Patents

Abstract

PURPOSE:To attain response and communication in a place apart from a telephone set main body by providing a portable remote controller. CONSTITUTION:When the ringing tone of the telephone set main body 100 is heard and the earphone 303 of the remote controller 300 is pulled out from a casing, a switch 306 is turned on, and power switches 354 and 355 are successively turned on, whereby a reception unit 301 and a transmission unit 305 are fed. When the modulation signal of 1kHz is transmitted from the transmission unit 305 of the remote controller 300, the reception unit 112 of the telephone set main body 100 receives the signal, and FF 118 is turned on. The transmission unit 105 comes to an operation state, and a relay 106 is energized, whereby a response is made to a telephone line. Thus, the holder of the remote controller 300 can attain communication through the telephone set main body 100.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a telephone device, and in particular, it has a small portable remote control, and the telephone device is connected to a telephone line from the remote control via the telephone body. This invention relates to a telephone device that allows telephone calls at a location away from the main body.

[Conventional technology]

Conventionally, various types of wireless telephones have been provided. One example is one in which the telephone main body and the telephone handset are wirelessly connected at all times without a cord, and another example is one in which they are connected by a cord and when the cord is disconnected, the connection is made wirelessly.

[Problem that the invention seeks to solve]

All of these devices are constructed as a combination of a telephone main body and a handset, and a call can only be made when the handset is picked up.

Therefore, it is difficult to talk on the phone at a location far from the main body of the telephone, and it is inappropriate for a housewife to receive a telephone call while doing housework, for example.

The present invention has been made in consideration of the above-mentioned points, and an object of the present invention is to provide a telephone device that is configured to be able to make a telephone call even at a location remote from the main body of the telephone.

[Means for solving problems]

To achieve the above object, the present invention includes: a telephone main body having two sets of wireless transmitting units and two wireless receiving units each connected to a telephone line; a wireless transmitting unit connected to a microphone and a wireless receiving unit connected to a speaker; and a remote control having a wireless transmitting unit connected to a microphone and a wireless receiving unit connected to a speaker, and means for detecting that the cord between the telephone body and the handset is disconnected. When the detection means performs a detection operation, the wireless transmitting unit and the wireless receiving unit are activated to communicate with each other wirelessly, and when the remote controller is activated, a transmission signal from the remote controller is transmitted. the handset is configured to receive the radio signal and operate the wireless transmitting unit and the wireless receiving unit to communicate with each other in a wireless manner, and the handset includes means for detecting that the cord between the handset and the telephone main body is disconnected. The detection operation of the means activates the wireless transmitting unit and the wireless receiving unit to communicate with the telephone main body, and the remote controller is activated by operation and activates the wireless transmitting unit and the wireless receiving unit. and a telephone device configured to communicate with the telephone main body.

[For production]

The telephone body and the handset exchange signals using a wired method, and also send and receive signals using a wireless method. Wireless signal transmission and reception is performed by a wireless transmitting unit and a wireless receiving unit provided in the telephone body and the handset, respectively, when the cord connecting the telephone body and the handset is disconnected.

The telephone itself also communicates wirelessly with the remote control. This is done by another set of transmitting and receiving units provided on the telephone body and a transmitting and receiving unit provided on the remote control. The remote control is activated by operating a switch and is connected to the telephone line via the telephone body.

〔Effect of the invention〕

As described above, the present invention provides a telephone that is more convenient than conventional wireless telephones because it is possible to use a portable remote control to make calls at a location away from where the telephone body is installed. can do. That is, when the user hears the ringing tone of the telephone, he or she can operate the remote control and make a call using the remote control instead of using the handset. Therefore, it becomes possible to use the device so that housewives can answer telephone calls while continuing to do housework.

〔Example〕

FIG. 1 is a circuit diagram of an embodiment of the present invention, in which reference numeral 100 indicates a telephone main body, 200 a handset, and 300 a remote control.

The telephone main body 100 is connected to a telephone line via a hook switch 101, and the audio signal from the telephone line is extracted via an amplifier 102 and a matching transformer 103.
It is transmitted to the handset 200 via the code, and also transmitted to the handset 200 and the remote control 300 via the two transmitting units 104 and 105.

On the other hand, the audio signal from the handset 200 is sent to one of the two receiving units 11 by wire or wirelessly.
0 to the input side of the amplifier 111 and transmitted to the amplifier 102 side of the hook switch 101. Furthermore, the audio signal from the remote control 300 reaches the input side of the amplifier 111 via another receiving unit 112.

The operation of each transmitting unit and receiving unit is controlled according to the state of the handset or remote control.

That is, the transmitting unit 104 and the receiving unit 110, which exchange signals with the handset 200, are activated by the output of the switch 153, which is turned on when the cord connecting the telephone main body 100 and the handset 200 is disconnected. The transmitting unit 105 and the receiving unit 112 that exchange /j signals with the remote controller 300 are activated by a flip-flop 118 that generates an output upon receiving a signal from the remote controller.

This flip-flop 118 performs an inverting operation according to the output of the receiving unit 112, and is turned on by a transmission start signal from the remote controller and turned off by a transmission end signal. The output of this flip-flop 118 is further applied to the relay 106 and used to open/close the relay contact 106x, while it is applied to one input terminal of the AND circuit 107 to signal that the remote control and handset are being used simultaneously. Used for generation.

The second broadcast signal is formed by the multi-by-break 108 and the oscillation circuit 109, and the two transmitting units 104,
105.

The output of the receiving unit 112 is the audio control circuit 11
3 to the amplifier 111.

The power switch 153 supplies the DC component supplied via the charging circuit 151 and the rechargeable battery 152 to the transmitting unit 104.
and to the receiving unit 110.

Next, the handset 200 includes a speaker 20B, a microphone 204, a receiving unit 201, and an amplifier 20.
2. In addition to what the transmitting unit 205 does, it also includes a rechargeable battery 251 and a power switch 252 as a power supply circuit.

The rechargeable battery 251 is charged by the charging circuit 151 of the telephone body 200. This handset 200 sends and receives audio signals to and from the telephone main body 100 by wire or wirelessly.

Furthermore, the remote control 300 includes a receiving unit 301 and an amplifier 3.
02 and an audio signal receiving system including the earphone 303, and an audio signal transmitting system including the microphone 304, the transmitting unit 305, and the oscillating circuit 314. In order to control the operation of each prefecture, a control circuit is provided that responds to the on/off of the switch 306. This control circuit includes inverters 307 and 308, integration circuits 309 and 3]1, AND circuits 310 and 312, and an oscillation circuit 31.
3, and power switches 354, 355 and 356, and among these power circuits, power circuit 354, 355
is supplied with the DC component from the main rechargeable battery 352, and the power supply circuit 356 is supplied with the DC component from the auxiliary rechargeable battery 353. These rechargeable batteries are then charged by a charging circuit 351.

357 is the auxiliary rechargeable battery 35 when the main rechargeable battery 352 is exhausted.
This is a switch for supplying power from 3.

FIG. 2 shows the telephone main body 100 and the handset 200, and FIG. 3 shows the external appearance of the remote control 300.

In these figures, a telephone main body 100 is connected to a telephone line 10 as shown in FIG. 2, and is also connected to a commercial power source via an AC cord 20. The telephone main body 100 and the handset 200 are connected by a cord 30.

Further, as shown in FIG. 3, the remote control 300 has a microphone 304 on its outer circumferential surface, is connected to a commercial power source through a power cord 40, and the casing of the remote control and the earphone 303 are connected through a cord 50. The earphone 303 can be inserted into the casing,
When inserted, the tip of the protruding part of the earphone 303 is connected to the switch 3.
06 to turn off the switch 306, and when the earphone 303 is removed from the casing, the switch 306 is turned off.
is configured to be turned on.

-Motion work- Next, the operation of each of these circuits as a whole will be explained.

Assume that a calling signal is now given to the telephone main body 100 from the telephone line 10.

1) Nowadays, the telephone body 100 and the handset 20
0 is connected by the cord 30, when the handset 200 is picked up, the hook switch 101 is turned on and audio signals are exchanged via the cord 30. This is the operation of a normal telephone and is not unique to the present invention, so a detailed explanation will be omitted.

2) On the other hand, if the cord 30 connecting the telephone main body 100 and the handset 200 is disconnected when a ringing signal is given, the power switch 153 is turned on in the telephone main body ○O, and the power is turned on in the handset 200 as well. Switch 252 is turned on. These power switches 153
．． Reference numeral 252 turns on when the cord 30 is disconnected, and utilizes the fact that, among the four wires of the cord 30, for example, a microphone wire is disconnected and a potential change occurs.

In other words, a well-known switch using an element such as a transistor may be used, which turns on when the potential becomes zero when the cord is disconnected.

When the power switch 153 is turned on, the telephone body 100
A power supply voltage is applied from the rechargeable battery 152 to the transmitting unit 104 and the receiving unit 110, and these units are put into operation. On the other hand, when the power switch 252 is turned on, a power supply voltage is applied from the rechargeable battery 251 of the handset 200 to the receiving unit 201, amplifier 202, and transmitting unit 205 through the power switch 252, and these elements become operational.

This allows wireless signals to be exchanged between the telephone main body 100 and the handset 200.

Therefore, the user can carry the handset 200 and make calls.

3) Furthermore, suppose that there is no one near the telephone when a call signal is given, and for example, a housewife who is cooking in the kitchen has to answer the call. Assume that this housewife carries a remote control.

In this case, the housewife hears the ringing tone from the phone, takes out the remote control 300, and pulls out the earphone 303 from the casing to turn on the switch 306 and put the remote control 300 into operation.

When the switch 306 is turned on, the input of the inverter 307 becomes L (low) and the output becomes H (/1). Therefore, the input of another inverter 308 is H and the output is L.
becomes. The outputs of both inverters 307 and 308 are applied to AND circuits 310 and 312, and the output of inverter 307 is applied to power switches 354 and 355.

Then, the L output of the inverter 308 is used to power the switch 35.
4.355 is turned on, power is supplied from the main rechargeable battery 352 to the receiving unit 301 and amplifier 302 by the power switch 355, and power is also supplied from the main rechargeable battery 352 to the transmitting unit 305 by the power switch 354.

Regarding the AND circuits 310 and 312, the AND circuit 310 generates an H output for a predetermined period of time, for example, about 1 second, using the H output of the inverter 307 and the L output of the inverter 308 provided via the integrating circuit 309.
Activate. This oscillation circuit 313 has a frequency of, for example, 1kHz.
The signal is superimposed on the signal from the microphone 304 and sent to the transmitting unit 305 to transmit the signal to the telephone body 100.
Sends a Hz modulated signal. Another AND circuit 31
2 produces an output when the remote control 300 is turned off, and does not produce an output because the L output is given from the inverter 308.

The 1 kHz modulated signal from the transmitting unit 305 of the remote control 300 is received by the receiving unit 112 of the telephone body 100. The receiving unit 112 is equipped with a constantly rechargeable battery 152.
connected to and ready to receive. Upon receiving the carrier, the receiving unit 112 immediately activates the voice control circuit 113.
is activated, and the received output is applied to bandpass filters 114 and 115. The band pass filter 114 is for 1 kHz, and the band pass filter 115 is for 100 Hz.
An output is given to produce a DC output.

This turns on flip-flop 118.

By turning on the flip-flop 118, the transmitting unit 10
5 is activated and can transmit data to the remote control 300, and the relay 106 is energized to connect the telephone line 10 and the transmitting units 104 and 105. Furthermore, the output of the flip-flop 118 is also given to the AND circuit 107, and if the hook switch 101 is on, the output from the AND circuit 107 is transmitted to the multivibrator 108.
For example, one pulse is given to the oscillation circuit 109 every 30 seconds or one minute to send out a signal of, for example, 1.5 kHz. This is because the transmission unit 104, 105 sends the signal to the handset 200 and remote control 300 to notify each other that the other communication means is in operation. Therefore, when the handset 200 is placed on the telephone main body 100 and the hook switch 101
If it is open, this is not necessary and the AND circuit 107 does not produce an output.

As a result, it is possible to make a call by adding the telephone main body 100 and the remote control 300 or the handset 200 thereto.

Next, when the earphone 303 is stored in the casing using the remote control 300, the switch 306 opens and the inverter 30
The output of inverter 7 changes from H to L, and the output of inverter 308 changes from L to H. Therefore, the AND circuit 310 does not produce an output when one input becomes L, and the other AND circuit 312 receives the H output from the inverter 308 and the output from the inverter 307 gradually from H to L via the integrating circuit 311. A signal changing to , for example, is applied for one second to produce an output, and the power switch 356 operates the transmitting unit 305 and the oscillation circuit 314 . Since the oscillation circuit 314 forms a 100 Hz signal, for example, the transmitting unit 305 sends out a 100 Hz modulated signal for about 1 second.

This 100Hz modulated signal is received by a receiving unit 112, detected by a bandpass filter 116, and filtered by a diode 1.
17, and this detection output is sent to the flip-flop 11.
8 reset terminal. As a result, the voice control circuit 113, the relay 106 and the AND circuit 10
7 becomes inactive. Then, the communication between the remote control 300 and the telephone main body 100 is stopped.

Next, the operation of the remote control 300 when the main rechargeable battery 352 is exhausted will be described. For example, if the main rechargeable battery 352 is exhausted during a call, the call becomes impossible. Then, while the push button switch 357 is kept pressed, the auxiliary rechargeable battery 35
3 to the receiving unit 301, amplifier 302, and transmitting unit 305 via the push button switch 357. This power supply stops as soon as the push button switch 357 is released.

[Brief explanation of the drawing]

FIG. 1 is a circuit diagram of an embodiment of the present invention, FIG. 2 is a diagram showing the external appearance of a telephone main body and a handset in the same embodiment, and FIG. 3 is a diagram showing the external appearance of a remote control in the same embodiment. 100...Telephone body, 101...Hook switch, 102.107,117...Amplifier, 104°10
5... Transmission unit, 106... Relay, 108.
...Multi-by-break, 109...Oscillation circuit, 11
0.112... Receiving unit, 113... Audio control circuit, 114, 115... Band pass filter, 118... Flip-flop, 151... Charging circuit, 152... Rechargeable battery, 153... ...Power switch. 200... Handset, 201... Receiving unit, 202... Amplifier, 203... Speaker, 204
... Microphone, 205 ... Transmission unit, 2
51... Rechargeable battery, 252... Power switch. 300... Remote control, 301... Receiving unit, 3
02...Amplifier, 303...Earphone, 304...
・Microphone, 305... Transmission unit, 306
... Switch, 307, 308 ... Inverter, 3
09゜311...Integrator circuit, 310.312...AND circuit, 313.314...Oscillation circuit, 351...
・Charging circuit, 352.353... Rechargeable battery, 354,
355°356...Power switch, 357...Push button switch. 10...Telephone line, 20.40...Power cord, 3
0, 50... code. Applicant's agent Mr. Sato Figure 3 Procedural amendment form) March 2, 1988 1, Display of the case 1988 Patent Application No. 299090 2, Name of the invention Telephone device 3, Person making the amendment Case Relationship with Patent applicant Sho Iwai 34, agent (zip code 100) February 3, 1988 (Shipping date: February 23, 1988)

Claims (1)

[Claims] 1. A telephone main body having two sets each of a wireless transmitting unit and a wireless receiving unit connected to a telephone line, and a wireless transmitting unit connected to a microphone and a wireless receiving unit connected to a speaker. a handset; a remote control having a wireless transmitting unit connected to a microphone; and a wireless receiving unit connected to a speaker; When the detection means performs a detection operation, the wireless transmitting unit and the wireless receiving unit are activated to communicate with each other wirelessly, and when the remote controller is activated, it receives a transmission signal from the remote controller. the handset is configured to operate the wireless transmitting unit and the wireless receiving unit to communicate with each other in a wireless manner, and the handset has means for detecting that the cord between the handset and the telephone main body is disconnected; The detection operation of the means is configured to activate the wireless transmitting unit and the wireless receiving unit to communicate with the telephone main body, and the remote control is activated by operation to activate the wireless transmitting unit and the wireless receiving unit. A telephone device configured to communicate with the telephone body. 2. In the device according to claim 1, the remote control has two batteries as power sources, one of the batteries is used at all times, and when the constant battery is exhausted, power is supplied from the other battery. telephone equipment. 3. The telephone device according to claim 1, wherein the remote control transmits a start signal at the time of starting operation. 4. The telephone device according to claim 1, wherein the remote control transmits a termination signal when the operation is completed. 5. The device according to claim 1, wherein the telephone main body is provided with means for connecting a telephone line when receiving a signal from the remote controller. 6. The telephone device according to claim 1, wherein the main body transmits a notification signal to the transmitting unit when receiving a signal from the remote controller. 7. The telephone device according to claim 1, wherein the main body has means for supplying power for charging to the handset.