JPH0750877A - Radio telephone equipment - Google Patents

Abstract

PURPOSE:To allow the equipment to have a multi-function without deteriorating the freedom of a movement in the course of speech, and also, to improve the reliability of its operation, and to constitute a battery so that its small capacity or long service life can be realized. CONSTITUTION:A radio telephone set 5 is divided into a radio telephone set main body 6 and a transmitter/receiver part 7 and both of them are connected by a second radio channel 8, and also, this second radio channel is set by selecting an idle speech channel from in plural channels prepared in advance, and using this idle speech channel.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a radiotelephone device for enabling multi-functionalization.

[0002]

2. Description of the Related Art A wireless telephone device, which is a so-called cordless telephone, is conventionally connected to a connection device 2 connected to a wired telephone line 1 and a connection to the connection device 2 via a wireless line 3, as shown in FIG. The wireless telephone 4 is used. The connection device 2 includes a control circuit 21 for performing connection control, and variably sets the transmission frequency of the synthesizer 22 according to an instruction from the control circuit 21 to specify a control channel and a communication channel for the transmitter 23 and the receiver 24. Then, the call signal arriving via the wired telephone line 1 is guided to the transmitter 23 via the line relay 25 and the hybrid circuit 26, and from this transmitter 23, the antenna 27 is transmitted.
To the wireless line 3 via. Further, a call signal arriving from the wireless telephone 4 via the wireless line 3 is received by the receiver 24 via the antenna 28, and the received call signal is sent to the wired telephone circuit 1 via the hybrid circuit 26 and the line relay 25. .

On the other hand, the radiotelephone 4 is provided with a control circuit 41 for connection control, and the reception frequency of the synthesizer 42 is variably set according to an instruction from the control circuit 41 to control channels of the transmitter 43 and the receiver 44 and a communication channel. Is specified. Here, the control channel of the wireless line 3 is designated as a predetermined one control channel, while the call channel is selected from the call channels which are determined to be free by the connection device 2 among the plurality of call channels. It is specified. The wireless telephone 4 is connected to the connection device 2 via the wireless line 3.
The call signal coming from the receiver is passed through the antenna 45 and the receiver 44.
The received signal is supplied to the handset 46 and output as a voice. Further, the voice signal input by the transmitter 47 is transmitted from the transmitter 43 to the wireless line 3 via the antenna 48.

The connection device 2 rectifies the output (100 V AC) of a commercial power source by a power source circuit 29 and uses this as a power source, while the radio telephone 4 uses a battery 49 such as a dry battery as a power source. Further, the wireless telephone 4 is provided with a key switch 50 such as a push button dial and a display unit 51 for displaying a low voltage, an out-of-range display or the like.

[0005]

By the way, recently, it has been considered to provide the radio telephone 4 with many functions such as a button telephone by providing a large number of key switches and indicators. However, adding such a large number of key switches and display circuits to the wireless telephone makes the wireless telephone larger and consumes more current, which requires a large battery with a large capacity. This causes a problem that the wireless telephone becomes heavy. This problem is extremely serious in a wireless telephone device whose greatest feature is that the user can freely move during a call.

The present invention has been made in view of the above circumstances, and it is possible to realize a multi-function without lowering the flexibility of movement during a call, and to improve the operation reliability and the battery capacity. Another object of the present invention is to provide a radiotelephone device which has a long service life and can always perform high quality communication without causing radio interference such as interference.

[0007]

In order to achieve the above object, the present invention separates a radio telephone into a radio telephone main body and a handset unit, and connects the radio telephone main unit and the handset unit to each other. The second wireless line different from the first wireless line connecting between the connection device and the wireless telephone is used to connect the second wireless line and the second wireless line.
By connecting the wireless line of No. 1 and the first wireless line in the main body of the wireless telephone, a communication path is formed between the connection device and the handset unit, and the setting of the second wireless line is performed.
An empty call channel is selected from a plurality of call channels prepared in advance, and the empty call channel is used for the call.

[0008]

As a result, according to the present invention, the wireless telephone is separated into the wireless telephone main body and the handset portion and the two are connected by the second wireless line, so that the switch necessary for controlling the operation of the wireless telephone. Most of the main components such as the input unit and the control circuit can be provided in the main body of the wireless telephone, which allows the handset unit, which is a substantial moving unit, to be significantly reduced in size and weight. Therefore, not only the portability can be improved, but also the battery can have a small capacity or a long life.

Further, according to the present invention, the second wireless line connecting the wireless telephone main body and the handset unit is different from the first wireless line among a plurality of call channels prepared in advance. By selecting the call channel of the wireless communication terminal and setting it by using this empty call channel, not only for communication between the connection device and the main body of the wireless telephone, but also for other terminals that are relatively close to each other. With respect to the communication of the same type of wireless telephone device, wireless interference such as interference does not occur, and thus high quality communication can always be performed.

[0010]

FIG. 2 is a circuit block diagram showing the configuration of a wireless telephone device according to an embodiment of the present invention. In the figure, the same parts as those in FIG. 1 are designated by the same reference numerals and detailed description thereof will be omitted.

The wireless telephone 5 of this wireless telephone device includes a wireless telephone body 6 excluding the handsets 46 and 47, and a handset 4.
6 and 47, the handset unit 7 is built in, and both are structurally separated.

The main body 6 of the wireless telephone has a power supply circuit 61.
The power supply circuit 61 is provided with an output (AC10
0V) is rectified and the output is used as a power source.
In addition, the wireless telephone body 6 includes a synthesizer 62 and a transmitter 6 which are different from the transmitting / receiving circuit used for communication with the connection device 2.
3, second receiver 64 and antenna 65, 66
The control circuit 67 controls the transmission / reception circuit of the second wireless circuit 3 which is different from the first wireless circuit 3 for connecting the connection device 2 to the handset unit 7. The wireless line 8 is formed.

Further, the handset unit 7 of the radio telephone main body 6
A connection terminal 55 for the control line and a terminal 56 for the power supply output are provided at the contact portion with the contact point, that is, the contact portion when the handset unit 7 is hooked on. The control terminal 55 is for transmitting a channel designation instruction from the control circuit 67 to the handset unit 7 when the handset unit 7 is in the on-hook state. Note that reference numerals 68 and 69 in the figure denote a key switch group and a display group for multi-functionalization.

On the other hand, the transmitter / receiver unit 7 includes, in addition to the transmitter 46 and the receiver 47, a transmission / reception circuit forming a second wireless line 8 with the wireless telephone body 6 of the wireless telephone, and a battery circuit. I have it. The transmission / reception circuit receives a call signal coming from the wireless telephone body 6 via the second wireless line 8 at the receiver 72 via the antenna 71, supplies the received signal to the handset 46, and transmits the signal. 47
The transmitter 73 receives the call signal input from the antenna 7
4 to the second wireless line 8. The transmitter / receiver circuit has a synthesizer 75, and the transmitter 73 and the receiver 72 are used by the synthesizer 75 according to a control signal supplied from the control circuit 67 of the wireless telephone body 6 via the control terminals 55 and 76. Specify the call channel.

On the other hand, the battery circuit comprises a battery 77 such as a dry battery and a switch 78, and the power supply circuit 61 of the radio telephone main body 6 when the handset unit 7 is on-hook.
The battery 77 is charged by the power output supplied from the terminals 56 and 79, and the switch 78 is turned on at the time of off-hook to supply the output of the battery 77 to the transmitter 43 and the receiver 42. There is. The output of the battery 77 is supplied to the synthesizer 75 even during on-hook.

Next, the operation of the apparatus of this embodiment will be described based on the above-mentioned configuration. First, when the handset unit 7 is in the on-hook state, the control circuit 67 of the wireless telephone main body 6 detects an empty channel among a plurality of communication channels available on the second wireless line 8 by monitoring the carrier, and designates this empty channel. A control signal to be transmitted is sent to the synthesizer 75 of the handset unit 7 via the control terminals 55 and 76, whereby the speech channel in the second wireless line 8 is designated.

In this state, for example, when the subscriber picks up the handset unit 7, that is, when it goes off-hook, the switch 78 becomes conductive and the output of the battery 77 is supplied to the transceivers 73 and 72 of the handset unit 7. By transceiver 7
The second and third wireless lines are formed between the wireless telephone main body 6 and the handset unit 7 when the mobile telephones 3 and 72 are in the operating state. At the same time, a control channel is first set between the wireless telephone main body 6 and the connection device 2. When a dial operation is performed on the wireless telephone main body 6 in this state, dial information is sent to the connection device 2 via the control channel. After that, connection control at the time of making a call and responding to the call is performed by a well-known control procedure, and a call channel is set between the connection device 2 and the wireless telephone body 6 via the first wireless line 3. However, a call path is formed between the wired telephone line 1 and the handset unit 7 via the first and second wireless lines 3 and 8, respectively, so that the subscriber can talk with the subscriber of the partner telephone. Become.

By the way, the subscriber during the call has only the small and lightweight handset unit 7, and the handset unit 7 and the radio telephone main body 6 are connected by the second radio line 8. . Therefore, the subscriber can always talk in a comfortable state without taking an unreasonable posture even if the posture is changed or slightly moved.

On the other hand, when the call is ended and the handset unit 7 is returned to a predetermined position of the wireless telephone body 6, that is, when it is on-hook, the switch 78 of the handset unit 7 is turned off and the transmitter 73 and the receiver 72. The power supply to the device is cut off, and as a result, the transmission of radio waves is stopped. At the same time, the wireless telephone body 6 determines that the call has ended when it detects that the radio wave from the handset unit 7 has been cut off for a certain period of time, and thereafter disconnects the connection with the connection device 2 by a well-known control procedure. Return to standby mode.

As described above, according to this embodiment, the wireless telephone 5 is separated into the wireless telephone body 6 and the handset portion 7 and the two are connected by the second wireless line 8. The posture and position can be freely changed only by having the lightweight handset unit 7. Therefore, it is possible to add a large number of key switches, indicators, control circuits, etc. to the wireless telephone body 6 as in a button telephone, for example, and to make the telephone multifunctional. That is, it is possible to achieve multi-functionality without impairing the portability of the wireless telephone. Furthermore, the wireless telephone body 6
Since it is no longer necessary to carry
A commercial power source can be used as the power source of the wireless telephone, and as a result, the operational stability of the wireless telephone body can be improved. Also,
The handset unit 7 need only be equipped with a power source for operating the transceivers 73 and 72, and since the wireless telephone body 6 and the handset unit 7 are close to each other, the output of the transmitter 72 is small. Therefore, a small-sized and small-capacity battery can be used as the power source used in the handset unit 7, and the life can be extended.

The present invention is not limited to the above embodiment. For example, in the above-described embodiment, when the handset unit 7 is hooked on, it is determined that this is an immediate end call and the end call process is performed. However, before the end call process, the on-hook handset unit 7 self-hooks. It is also possible to determine whether or not it is compatible with the telephone set, that is, whether or not the wireless telephone body and the handset unit match.

As means for realizing this, for example, when the handset unit 7 is on-hook, the handset unit 7 outputs an identification code signal unique to the set of the wireless telephone device, and this signal is passed through the control terminal to the wireless telephone main body 6 The control circuit 67 may be configured to judge the identification code.
Then, as a result of the above determination, when it is determined that the wireless telephone main body and the handset unit match, the call ending process is performed, and when it is determined that they do not match, an alarm may be issued.

In the above operation, the wireless line between the wireless telephone body and the handset unit is maintained until the call ends. By doing so, even if a plurality of sets are used side by side, the handset unit is mistakenly placed on the other wireless telephone body, and the other set does not end the call. .

Further, an end switch is provided in the handset unit,
You may make it switch to an end process by operating this end switch. This can be realized by interrupting the transmission radio wave for a certain time or longer by operating the end call switch, recognizing this by the carrier monitoring in the radio telephone body, recognizing the end call, and performing the end call process.

Further, in this case, if the off-hook state is formed by operating the end-of-call switch once after ending the call by the end-of-call switch, this end-of-call switch can be used as a hook switch. However, in this case, the second wireless line is kept as it is. The reason is that when the wireless line is disconnected, the control terminals of the wireless telephone main body and the handset unit are kept apart from each other, so that the channel designation from the wireless telephone main body cannot be performed. It should be noted that as means for transmitting to the main body of the wireless telephone that the operation of the call end switch has been performed, transmission of call end data may be performed.

[0026]

As described in detail above, according to the present invention, the radio telephone is separated into the radio telephone main body and the handset unit,
By connecting the two via the second wireless line, it is possible to achieve multi-functionality without impeding the freedom of movement during a call, and to improve the operation stability and battery capacity. It is possible to provide a radiotelephone device capable of increasing the capacity or extending the life.

Further, according to the present invention, the setting of the second wireless line is performed by selecting an empty call channel from a plurality of call channels prepared in advance and using the empty call channel. Therefore, of course, not only for communication between the connection device and the main body of the wireless telephone, but also for communication of other wireless telephone devices of the same type that are relatively close to each other, without causing radio interference such as interference. It is possible to provide a wireless telephone device that can always perform high quality communication.

[Brief description of drawings]

FIG. 1 is a circuit block diagram showing a configuration of a conventional wireless telephone device.

FIG. 2 is a circuit block diagram showing a configuration of a wireless telephone device according to an embodiment of the present invention.

[Explanation of symbols]

 1 ... Wired telephone line 2 ... Connection device 3 ... First wireless line 5 ... Wireless telephone 6 ... Wireless telephone body 7 ... Handset part 8 ... Second wireless line 46 ... Handset 47 ... Handset 55, 76 ... Control Line connection terminals 56, 79 ... Power output terminals 61 ... Power circuit 62, 75 ... Synthesizer 63, 73 ... Transmitter 64, 72 ... Receiver 65, 66, 71, 74 ... Antenna 67 ... Control circuit 68 ... Key switch group 69 ... Display group 77 ... Battery 78 ... Switch

─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. ⁶ Identification code Office reference number FI Technical display location H04M 1/00 N 7406-5K 7304-5K H04B 7/26 110 A

Claims (4)

[Claims] 1. A connection device connected to a wired telephone line, a wireless telephone body connected to the connection device via a first wireless line, and a first wireless line connected to the wireless telephone body. Comprises a handset unit connected via a different second wireless line, and the wireless telephone body has a switch input unit for inputting an operation related to a call, and a call request is made by the switch input unit. In order to set a call channel determined to be empty among a plurality of call channels prepared in advance in cooperation with the connection device as the first wireless line with the connection device when input. Of the first wireless connection control means and an empty call channel selected from a plurality of call channels prepared in advance prior to the call are linked with the control operation by the first wireless connection control means. Second wireless connection control means for setting between the handset unit as the second wireless connection, the first wireless connection set by the first wireless connection control means, and the second wireless connection control means. Wireless line connection means for connecting to the second wireless line set by the wireless connection control means and forming a communication path between the connection device and the handset unit. Wireless telephone device. 2. The wireless telephone main body is powered by a commercial power source,
2. The wireless telephone device according to claim 1, wherein the handset unit is powered by a battery that is charged by the power output of the wireless telephone body when on-hook. 3. The connection device selects a plurality of empty call channels from a plurality of call channels prepared in advance,
One of the selected plurality of available call channels is first
Wireless line and another one as a second wireless line to the wireless telephone body, and the wireless telephone body is designated as the first wireless line by the first wireless connection control means. The established empty call channel is set with the connection device, and the empty call channel designated as the second wireless line is set with the handset unit by the second wireless connection control means. The wireless telephone device according to claim 1, wherein 4. The connection device selects one empty call channel from a plurality of call channels prepared in advance and designates it as the wireless telephone body, and the wireless telephone body is controlled by the first wireless connection control means. An empty call channel designated by the connection device is set as a first wireless line between the connection device and the idle call channel, and the second wireless connection control means sets the empty call channel designated by the connection device. The wireless telephone device according to claim 1, wherein a telephone channel associated in advance is set as a second wireless line between the telephone channel and the handset unit.