JPS63222526A - Radiotelephony equipment - Google Patents

Abstract

PURPOSE:To attain multifunction without deteriorating the mobility of a mobile set in operation by providing a radio channel and a wired line attached and detached freely between a radiotelephony equipment main body and a handset. CONSTITUTION:A radiotelephony equipment is separated into a main body A and a handset B and the radiotelephony equipment main body A and the handset B are connected via the 2nd radio channel C different from the 1st radio channel to transmit/receive a control signal and a talking signal and a wired line D connecting freely the radiotelephony equipment main body A and the handset B is provided to attain the transmission/reception of at least the control signal and the talking signal. Thus, the multifunction is attained without deteriorating the mobility of the set in operation so as to enhance the operability of a radiotelephony equipment and sure operation regardless of the state of battery.

Description

[Detailed Description of the Invention] [Object of the Invention] (Field of Industrial Application) The present invention provides a wireless telephone device (
Regarding this.

(Prior Art) A wireless telephone device called a so-called cordless telephone has conventionally included a connecting device 2 connected to a subscriber line 1 as a wired telephone line, and this connecting device 2, as shown in FIG.
A wireless telephone 4 is connected to the wireless telephone 4 via a wireless line 3.

The connection device 2 includes a control circuit 21 that performs connection control,
Based on instructions from the control circuit 21, the oscillation frequency of the synthesizer 22 is variably set to designate the control channel and speech channel of the transmitter 23 and receiver 24. Then, the call signal that has arrived via the subscriber line 1 is guided to the transmitter 23 via the line relay 25 and the hybrid circuit 26,
The signal is modulated by the transmitter 23 and transmitted from the transmitting antenna 27 to the wireless line 3. Also, a call signal that has arrived from the wireless telephone 4 via the wireless line 3 is received and demodulated by the receiver 24 via the receiving antenna 28, and the received call signal is sent to the subscriber line 1 via the hybrid circuit 26 and the line relay 25. Send to.

On the other hand, the radio telephone 4 includes a control circuit 41 for connection control, and according to instructions from the control circuit 41, the transmission frequency of the synthesizer 42 is variably set to designate the control channel and communication channel of the transmitter 43 and receiver 44. Here, the control channel of the wireless line 3 is designated as one predetermined control channel, and on the other hand, the communication channel is selected from among the plurality of communication channels, which is determined to be free by the connection device 2. specified. Then, the wireless telephone 4 receives and demodulates the call signal that has arrived from the connection device 2 via the wireless line 3 via the receiving antenna 45 with the receiver 44,
The received signal is supplied to the receiver 46 and output as audio. Also, the audio signal input from the transmitter 47 is transmitted to the transmitter 4.
3 and transmits it from the transmitting antenna 48 to the wireless line 3.

Note that the connection device 2 is a commercial power supply output (ACLOOV).
is rectified and stabilized in a power supply circuit 29, and this output is used as a power source.On the other hand, the radio telephone 4 uses a battery 49 such as a dry cell as a power source. The wireless telephone 4 also includes a key switch 50 such as a call switch and a push button dial key.
and an indicator 5 for indicating low voltage, out of communication range, etc.
1 is provided.

Incidentally, in recent years, it has been considered to provide the wireless telephone 4 with a large number of key switches and indicators to provide it with many functions, such as a button telephone.

However, adding many key switches, displays, and associated circuits increases the size of the wireless telephone, and increases current consumption, which requires a large battery with a large capacity. becomes heavier, which causes deterioration in operability. This problem is extremely serious in a wireless telephone device whose main feature is that it can be freely moved while being held.

(Problems to be Solved by the Invention) As described above, the conventional devices have the problem that the operability of the radio telephone is significantly deteriorated due to the increase in size and weight of the radio telephone. Focusing on the points,
To provide a radio telephone device which can be made multi-functional without deteriorating its mobility during use, improves the operability of the radio telephone, and can be used reliably regardless of the state of the battery.

[Structure of the Invention] (Means for Solving the Problems) The present invention comprises a connecting device connected to a wired telephone line, and a wireless telephone connected to the connecting device via a first wireless line. In the radiotelephone device configured, as shown in FIG. A second wireless line C different from the wireless line of
to send and receive control signals and call signals, and separately from this m2 wireless line C, a wired line is provided to detachably connect the wireless telephone main body A and the handset part, At least control signals and communication signals can be exchanged through this wired line.

(Function) As a result, even if wireless telephones become larger and heavier due to multi-functionality, subscribers can still make calls and the various attendant functions by holding only the handset section B while leaving the main body A of the wireless telephone on the desk. This allows for improved operability. In addition, if it becomes impossible to make a call using the second wireless line C due to exhaustion of the handset/receiver battery, etc., a wired line is used to connect the wireless telephone body A and the handset/receiver B. This allows you to make a phone call.

(Embodiment) FIG. 2 shows the configuration of a wireless telephone device in an embodiment of the present invention. In this figure, the same parts as those in FIG. 3 are given the same reference numerals and detailed explanations will be omitted.

The radiotelephone 5 of this device consists of a radiotelephone main body 6 excluding the handset 46.degree. 47, and a handset section 7 containing the handset 46.degree. 47, and the two are structurally separated.

Now, the radio telephone body 6 is equipped with a power supply circuit 61, which rectifies and stabilizes a commercial power supply output (AC 100V) and uses the output as a power supply. In addition to the first transmitting/receiving circuit used for communication with the connecting device 2, the wireless telephone main body 6 includes a synthesizer 62, a transmitter 6,
3. A second transmitting/receiving circuit consisting of a receiver 64 and transmitting/receiving antennas 65 and 66 is provided. This second transmitting/receiving circuit is used for communication with the handset section 7,
It operates under the control of the control circuit 67 to form a second wireless line 8 with the handset section 7 . Furthermore, a connector 56 for wired line connection is provided on one side of the housing of the wireless telephone main body 6.
is the provision. The connector 56 has a signal terminal for inputting and outputting a transmitting signal and a receiving signal, and a power supply terminal for supplying the output power of the power supply circuit 61 to the handset unit 7.

On the other hand, the handset unit 7 includes a transmitter 46 and a receiver 47, as well as a transmitter/receiver circuit that forms a wireless line 8 with the wireless telephone main body 6, a battery 77 consisting of a rechargeable secondary battery, and a terminal. A talk switch 78 is provided. Among these, the transmitting/receiving circuit includes a control circuit 75 with a built-in synthesizer,
It has a transmitter 73 and a receiver 72, and a control circuit 7
The transmitter/receiver 73, 72 is set to the operating state according to the instruction in step 5. Then, a call signal arriving from the radio telephone main body 6 via the second radio line 8 is received and demodulated by the receiver 72 via the receiving antenna 71, and this received signal is transferred to the receiver 4.
6 to output it as voice, and transmitter 4.
7 is modulated by the transmitter 73 and sent from the transmitting antenna 74 to the second radio line 8. Furthermore, a connector 79 for wired line connection is provided on one side of the casing of the handset unit 7. This connector 79
has a signal terminal for inputting and outputting a transmitting signal and a receiving signal, and a charging terminal for inputting charging power supplied from the wireless telephone main body 6, and is connected to a wired line 9 made of a curl cord, for example. It is detachably connected to the connector 56 of the radio telephone main body 6.

With such a configuration, first of all, when the wired line 9 is not connected, the wireless telephone main body 6 and the handset section 7
Each operates in wireless connection mode. That is,
The control circuit 67 of the wireless telephone main body 6 performs a search for empty channels of a plurality of wireless channels for the second wireless line 8 at regular intervals while saving the battery during standby. The wireless channel determined as such is stored. On the other hand, the control circuit 75 of the handset section 7 monitors the arrival of a connection request from the radio telephone body 6 while conducting a reception search for each radio channel' for the second radio line 8.

In this state, for example, when the subscriber goes off-hook with the handset section 7, this is detected by, for example, an off-hook detector (not shown), and the control circuit 67 is notified of this. Then, the control circuit 67 specifies an empty radio channel to the synthesizer 62 and operates the transceivers 63 and 64, thereby transmitting a connection request to the handset section 7. On the other hand, when the control circuit 75 of the handset unit 7 detects a connection request from the radio telephone main body 6 in a reception search for an arbitrary radio channel, it sets this reception channel as a communication channel and sets the reception channel to the transmitter 73 and the receiver 72. are respectively set in a continuous operating state, and a response signal is sent back to the radio telephone main body 6. After confirming the return of this response signal, the radio telephone main body 6 executes connection control of the first radio line 3 with the connection device 2 according to a well-known predetermined procedure. In this state, when the subscriber operates the dial key 68 to input the other party's telephone number, the control circuit 67 of the wireless telephone main body 6 transmits the dial code to the connecting device 2 via the first radio, thereby transmitting the dial code to the connecting device 2. A dial signal is sent from subscriber line 2 to subscriber line 1. When the other party's telephone responds to this call, a communication path is formed between the other party's telephone and the handset section 7 via the first and second wireless lines 3.8, and from then on, communication between the two is established. Calls can be made.

On the other hand, when an incoming call occurs via the subscriber line 1 in the standby state, the control circuit 67 of the wireless telephone body 6 controls the connection with the connection device 2 in response to the connection request from the connection device 2. At the same time, an empty radio channel is designated to the synthesizer 62, the transmitter 63 and the receiver 64 are operated, and a connection request is sent to the handset section 7. On the other hand, when the control circuit 75 of the handset unit 7 detects a connection request from the wireless telephone main body 6 in the reception search of an arbitrary wireless channel as in the case of the above-mentioned outgoing call, it sets this reception channel as the communication channel. At the same time, the transmitter 73 and receiver 72 are set to the operating state, and a response signal is sent back to the radio telephone main body 6. When the control circuit 67 of the wireless telephone main body 6 detects the above response signal, the control circuit 67 of the wireless telephone main body 6
sends a response signal back to. Then, when the subscriber takes the handset section 7 off-hook in this state, the control circuit 67 of the radio telephone main body 6 sends an off-hook signal to the connection device 2. As a result, the line relay 24 of the connection bag vI12 is closed, and as a result, the first
A communication path is formed via each of the second wireless lines 3 and 8, and communication between the two is possible thereafter.

When the call ends and the subscriber turns on-hook the handset section 7, the control circuit 67 of the wireless telephone main body 6 detects this using an off-hook detector and sends a call end signal to the connecting device f/2 and the handset section 7, respectively. Send out. As a result,
The line relay 24 of the connection bag &f2 is released and the subscriber line 1 is terminated, and the control circuit 75 of the handset section 7 turns off the power supply to the transmitter 73 and receiver 72, returning to the standby state. .

Furthermore, during a call, if the incoming radio waves from the handset part 7 to the wireless telephone main body 6 drop below a specified level for a certain period of time or more, for example, due to a drop in the battery voltage of the handset part 7, being out of the communication range, or fading. In this case, the control circuit 67 of the radio telephone main body 6 detects this using a received electric field detection circuit (not shown), sends a call termination signal to the connection device 2, and performs call termination processing. As a result, the communication path between the handset section 7 and the subscriber line 1 is cut off, and when the subscriber who is no longer able to make a call operates the call end switch 78 of the handset section 7, the handset section 7 is put into standby mode. returns to the state. Also, the wireless telephone body 6
If the radio waves arriving at the handset unit 7 from
The transmitter/receiver 73, 72 becomes inactive, this is detected by the radio telephone body 6, a call termination signal is sent to the connection device 2, and the standby state is restored.

By the way, if the handset/receiver unit 7 is used for a long time, the battery 7
7 may wear out and become inoperable.

In this case, the wireless telephone main body 6 and the handset section 7 are connected by a wired line 9 made of a curl cord. Then, the output of the power supply circuit 61 of the wireless telephone main body 6 is supplied to the battery 77 of the handset section 7 via the wired line 9, thereby charging the battery 77. Also,
The receiver 46 and the transmitter 47 of the handset section 7 are directly connected to the transmitting and receiving signal lines of the wireless telephone main body 6 via the wired line 9, respectively. Therefore, at this time, the radio telephone 5 operates in the same manner as a normal radio telephone in which the handset section 7 is connected to the radio telephone main body 6 by a curl cord. Further, in this state, the connection of the wired line 9 is detected by a detector (not shown) and is transmitted to the control circuits 67, 75 of the radio telephone main body 6 and the handset section 7, and as a result, the control circuits 67, 75 are connected to the radio telephone. The power supply to the transmitting/receiving circuit for the second wireless line of the main body 6 and the transmitting/receiving circuit of the handset section 7 is turned off and set to a non-operating state. Therefore, unnecessary power is not consumed while using the wired line 9.

In this embodiment, the wireless telephone 65 is structurally separated into the wireless telephone main body 6 and the handset section 7, and these are connected by the second wireless line 8 or the detachable wired line 9. Therefore, even if the main body 6 of the radio telephone becomes larger and heavier due to the multifunctionality of the radio telephone 5, the subscriber can still make a call by holding the handset part 7, which makes the call operation easier. properties are maintained well. Further, even if it becomes impossible to make a call via the second wireless line 8 due to the battery 77 of the handset unit 7 being exhausted, the wireless telephone main body 6 and the handset unit 7 can be connected using the wired line 9 instead. This allows you to make calls. Moreover, in this case, while making a call via the wired line 9, power output can be supplied from the power supply circuit 61 of the wireless telephone main body 6 to the battery 77 of the handset section 7 via the wired line 9 to charge the battery 77. can.

Note that the present invention is not limited to the above embodiments. For example, if the number of wireless channels of the first wireless line is large,
i. Out of these channels, an empty channel may be selected and used for the second wireless line 8. Also,
If each wireless channel of the first wireless line 3 and each wireless channel of the m2 wireless line are paired, and the wireless channel of the first wireless line 3 is selected when making or receiving a call, the second wireless line 8 is automatically connected. channels may also be set. In this way, there is no need to search for an empty channel in order to set a wireless channel to be used in the second wireless line 8, and the control circuits 67 and 75 of the wireless telephone main body 6 and handset section 7 are controlled accordingly. The content can be simplified. Furthermore, the handset unit 7 may be provided with an indicator that issues a warning of low battery voltage or out of communication range, and the gist of the present invention also concerns the connection control procedure and connection contents of the second wireless line, the configuration of the wired line, etc. Various modifications can be made without departing from the above.

[Effects of the Invention] As described in detail above, according to the present invention, a wireless telephone is configured of a connecting device connected to a wired telephone line and a wireless telephone connected to the connecting device via a first wireless line. In the radio telephone device, the radio telephone is separated into a main body and a handset part, and the radio telephone main body and the handset part are connected via a second radio line different from the first radio line. In addition to transmitting and receiving control signals and call signals, a wired line is provided separately from the second wireless line to connect the wireless telephone main body and the handset section in a detachable manner. By making it possible to send and receive control signals and call signals, it is possible to increase the operability of the wireless telephone by making it possible to make it multi-functional without deteriorating its mobility during use. Therefore, it is possible to provide a wireless telephone device that can be used reliably.

[Brief explanation of the drawing]

FIG. 1 is a functional block diagram showing the configuration of a wireless telephone device according to the present invention, FIG. 2 is a circuit block diagram showing the configuration of a wireless telephone device according to an embodiment of the present invention, and FIG. 3 is a functional block diagram showing the configuration of a wireless telephone device according to an embodiment of the present invention. FIG. 2 is a circuit block diagram showing the configuration. DESCRIPTION OF SYMBOLS 1...Subscriber line, 2...Connection device, 3...First radio line, 5...Wireless telephone, 6...Radio telephone body, 7...Handset unit, 8... ...Second wireless line, 9
... wired line, 42.62 ... synthesizer, 43
, 63° 73... Transmitter, 44, 64.72... Receiver, 46... Receiver, 47... Transmitter, 56.7
9... Connector for wired line connection, 61... Power supply circuit, 67.75... Control circuit, 77... Battery,
78...End switch. Applicant's agent Patent attorney Takehiko Suzue First wireless line diagram 1

Claims (3)

[Claims] (1) In a wireless telephone device consisting of a connecting device connected to a wired telephone line and a wireless telephone connected to the connecting device via a first wireless line, the wireless telephone is connected to a main body and a handset. a second radio line different from the first radio line for transmitting and receiving control signals and call signals between the radio telephone main body and the handset; What is claimed is: 1. A wireless telephone device comprising: a wired line that is detachably connected to a section of the telephone and that transmits and receives at least control signals and call signals. (2) The radio telephone device according to claim (1), wherein the main body of the radio telephone is powered by a commercial power source, and the handset unit is powered by a rechargeable battery. (3) Claims characterized in that the wired line not only transmits and receives control signals and call signals, but also supplies power from the wireless telephone main body to each circuit of the handset and charges the battery. The wireless telephone device according to paragraph (2).