JPS63219253A - Radio telephone connecting device - Google Patents

Abstract

PURPOSE:To perform radio communication by using an existing radio telephone set as it is, by using an adaptor provided with a radio transmission/reception means radio-connected to a connection master device, a telephone set control means, a DC power supplying means, etc. CONSTITUTION:When a wire telephone set is connected to the connection mechanism B1 of a radio telephone adaptor B which incorporates the DC power supplying means B2, a call emitting signal and a dial signal from the wire telephone set are detected at the telephone set control means B4, and are radio- transmitted via the radio transmission/reception means B3, then, are received at the connection master device A. And a line is connected to a corresponding wire telephone line via the device A. The connection to the wire telephone set via the wire telephone line is performed similarly, thereby, it is possible to perform the radio communication easily and surely without using the radio telephone set by using the existing wire telephone set as it is.

Description

[Detailed Description of the Invention] [Purpose of the Invention] (Field of Industrial Application) The present invention relates to a wireless telephone connection device used by connecting to a wired telephone circuit (such as a subscriber t'I line). .

(Prior art) With the expansion of the network and the increase in communications, various communication channels tl-4Oη: Song-sou (1"7 has come to be used, but Inside there is a wireless telephone V, "j. This) 1 ((Line telephone equipment is called a so-called =-+- dress telephone, so for example, as shown in FIG. a connecting device 2 connected to the wireless telephone 4 connected to the connecting device 2 via a wireless line 3;
It consists of Incidentally, reference numeral 5 denotes a wired telephone set that is branch-connected to the connecting device 2 to the wired telephone line 1. The connection device 2 includes a wired line control unit that captures the line and sends dial signals to the wired telephone line 1, and a wireless telephone unit 4 that transmits and receives control signals and call signals via the wireless line 3. It consists of a circuit section. The radio telephone 4 is composed of a radio circuit section for transmitting and receiving control signals and call signals to and from the connection device 2, and a telephone section including a handset, a sounder, a dial key, and the like.

In such a configuration, when an incoming call occurs from the wired telephone line 1 side, this incoming call is detected by the connecting device 2 and transmitted to the wireless telephone 4 via the wireless line 3, and the sounder of the wireless telephone 4 is thereby activated. A ring tone is generated and notified to the subscriber. When the subscriber answers this call, a control signal to that effect is transmitted to the connecting device 2, which seizes the wired telephone line 1, thereby establishing a communication path between the wireless telephone [4 and the other party's telephone]. Once formed, you will be able to make calls. On the other hand, when the wireless telephone 4 makes a call, the call information and dial information are transmitted to the connection device 2 via the wireless line 3, and the connection device 2 captures the line and transmits the dial signal to the wired line. It is sent to telephone line 1. If the other party's telephone responds to this call, a communication path is established between the radio telephone 4 and the other party's telephone, and subsequent communication becomes possible. That is, if such a device is used, it is possible to talk while freely moving the wireless telephone 4 within the wireless area, which is extremely convenient.

However, this type of wireless telephone device is a completely different set independent from the wired telephone 5, so in order to make wireless calls, even if you own a wired telephone, you will need to purchase an expensive set of wireless telephone devices. must be purchased. For this reason, the burden on the subscriber became heavy and it was not possible to easily make a wireless call. Furthermore, in the wireless telephone device, the connection device 2 is operated by commercial power and the wireless telephone is operated by battery. If this happens, the wired telephone 5 will become unusable.
There was a problem that the system had to be used in combination, which made the system larger.

(Problems to be Solved by the Invention) As described above, in the past, in order to make a wireless call, the subscriber had to purchase a set of expensive wireless telephone equipment separately from the wired telephone, which placed a burden on the subscriber. The problem is that the system becomes large and expensive because it cannot be easily converted to a wireless phone, and a wired phone must be prepared even though it is rarely used in case of battery exhaustion or power outage. The present invention has focused on this point and has made it possible to make wireless calls by using existing wired telephones as they are, thereby reducing the size of the system without waste and at low cost. It seeks to provide a connection device.

[Structure 1 of the Invention (Means for Solving Problems) As shown in FIG. a wireless telephone adapter B to which a wired telephone is connected; The transmitting/receiving means A1 transmits and receives call signals to and from the wired telephone line, and also controls the wired telephone line and sends dial signals in response to control signals from the wireless telephone adapter B received by the wireless transmitting and receiving means A1. a connection mechanism B1 for detachably connecting a wired telephone to the wireless telephone adapter B; DC power supply means B2 for supplying DC power; wireless transmission and reception means B3 for transmitting and receiving call signals and control signals related to incoming and outgoing calls between the connected master device A; and 6- transmitting and receiving call signals to and from the wired telephone. telephone control means B4 which detects a calling signal and a dial signal output from the wired telephone and causes the wireless transmission/reception means B3 to transmit control signals corresponding to these signals to the connection master device A;
It has been established that

(Function) As a result, by simply connecting the connection master device A to the wired telephone line and detachably connecting the wired telephone to the wireless telephone adapter B, it is possible to make wireless calls using the existing wired telephone as is. Compared to the case of using a wireless telephone device, this makes it possible to perform wireless calls with a simpler configuration and at a lower cost since the handset and communication circuit of the wireless telephone are not required, and the battery consumption is also reduced. In case of wear out or power outage, connect your wired phone to wireless phone adapter B.
You can make calls by disconnecting the phone and connecting it directly to a wired telephone line.

(Embodiment) FIG. 2 shows the configuration of a wireless telephone connection device in an embodiment of the present invention. This device includes a connection master device 20 connected to the subscriber line 10, and and a wireless telephone adapter 40 connected via a wireless line 30.

First, the connecting parent device 20 is equipped with a transmitter (TX) 22 and a receiver (RX) 23 whose transmission and reception channels are designated by a synthesizer (SYN) 21, and which connects the subscriber line 10 during a call.
After passing through the line relay 24 and the hybrid circuit 25, the call signal received from the other party's telephone is modulated by the transmitter 22 and transmitted from the transmitting antenna 26 to the wireless line 30, and is then transmitted via the wireless line 30 to the wireless telephone adapter. 4
The wireless communication signal arriving from 0 is demodulated by the receiver 23 via the receiving antenna 27, and then sent to the hybrid circuit 25.
and is sent to the subscriber line 10 via the line relay 24. The connection master device 20 also functions as a circuit necessary for connection between the subscriber line 1o and the wireless telephone adapter 40.
An incoming call detection circuit 28 detects a 16 Hz incoming signal arriving from an exchange (not shown), and a received electric field detection circuit (C-D
ET) 29 and identification signal detection circuit (ID-DET) 3
1, and a dial signal generation circuit (PB) 32 that generates a dial signal consisting of a DTMF signal and sends it to the subscriber line 10.
and a control circuit (CONT) 33. Of these, the received electric field detection circuit 29 is composed of a carrier squelch circuit or a noise squelch circuit, and the wireless telephone adapter 40
Monitors the arrival of radio waves from Identification signal detection circuit 31
is an identification signal predetermined by the combination of the connection master device 20 and the wireless telephone adapter 40! (ID code) and notifies the control circuit 33 of the verification result.

The control circuit 33 has, for example, a microcomputer as a main control section, and performs various connection controls. In addition, 3
4 is a rectification stabilization circuit, commercial power supply output (AClooV)
A predetermined operating voltage VCC is generated based on the voltage, and this operating voltage VCC is supplied to each circuit in the connected parent device 20, and is also supplied to the wireless telephone adapter 40 as a battery charging voltage via the power supply terminal 35. are doing.

゛On the other hand, the wireless telephone adapter 40 has a transmitter (TX > 42) and a receiver (RX
)43. The adapter 40 also includes a connector 4 that mechanically and electrically connects the wired telephone 1150.
6 and a hybrid circuit 47, whereby a wireless communication signal that arrives via the wireless line 30 during a call is received and demodulated by the receiver 43 via the receiving antenna 44, and then transmitted via the hybrid circuit 47 and the connector 46. output to the wired telephone 50, and input the call signal output from the wired telephone 50 through the connector 46 and the hybrid circuit 47 and introduce it into the transmitter 42,
After being modulated by the transmitter 42, it is transmitted to the radio line 30 via the transmitting antenna 45. The hybrid circuit 47 includes, in addition to a normal 2-wire/4-wire conversion circuit, a DC power supply circuit for supplying direct current power equivalent to the station power output to the wired telephone 50, and a call origination and termination circuit for the wired telephone 50. A detection signal from the DC detection circuit is introduced into a control circuit to be described later. Furthermore, this wireless telephone adapter 40 includes a received electric field detection circuit (C-DET) 48, an identification signal detection circuit (ID
-DET) 49 and a sounder 52 that generates a ringing sound, and a dial signal detection circuit (
PB-DET) 51 and a control circuit (CONT>53. This control circuit 53 is connected to the connection parent device 20.
Like the control circuit 33, it has a microcomputer as a main control section, and performs various connection controls between the wired telephone 50 and the connection master device 20. Note that 54 is a battery, which is charged by the operating voltage Vcc supplied from the connection parent device 20 via a charging terminal 55. Next, the operation of the apparatus configured as above will be explained. First, before use, connect the connection master device 20 to the subscriber line 10, and connect the wired telephone 15 to the connector 46 of the wireless telephone adapter 40.
The wired telephone 50 is connected by attaching the modular connector No. 0. Although not shown, the connection master device 20 is also provided with a modular connector, and when connecting the connection master device 20 to the subscriber line 10, this modular connector is attached to the connector of the subscriber line 10. Do by doing.

Now, when an incoming call occurs in the standby state, the connecting parent device 20 detects the occurrence of this incoming call with the incoming call detection circuit 28, and the control circuit 33 instructs the synthesizer 21 to transmit/receive channels, so that the transmitter 22 and the receiver Each device 23 is operated to send an ID code and an incoming call signal to the wireless telephone adapter 40. On the other hand, the wireless telephone adapter 40 performs an intermittent reception operation with the receiver 43 while on standby.
When a radio wave arrives from the connection master device 20 in this state, it is detected by the received electric field detection circuit 48, and the ID code sent from the connection master device 20 is verified by the identification signal detection circuit 49. If it is determined that the call is for itself as a result of this verification, the control circuit 53 instructs the synthesizer 41 to select a transmission/reception channel, puts the transmitter 42 and the receiver 43 in a continuous operating state, and then transmits the incoming call response signal to the connecting parent. The signal is returned to the device 20, and the sounder 52 generates a ringing tone to notify the subscriber of the occurrence of the incoming call. When the subscriber responds to this call by picking up the handset of the wired telephone 50, the hybrid circuit 47 and the wired telephone 50
A DC loop is formed between the hybrid circuit 47 and the DC detection circuit of the hybrid circuit 47, and the detection signal is supplied to the control circuit 53. Then, the control circuit 53 generates a response signal and sends this signal from the transmitter R42 to the wireless line 3.
0 to the connected parent device 20. As a result, the control circuit 33 of the connection master device 20 connects the line relay 24 to the line relay 24 upon receiving the response signal from the wireless telephone adapter 40.
is turned on to connect the subscriber line 10 and the hybrid circuit 25.

In this way, a communication path is formed between the subscriber line 10 and the wired telephone 150, and subsequent communication between the telephone of the calling party and the wired telephone 50 is possible via this communication path.

On the other hand, if the subscriber picks up the handset of the wired telephone 50 and performs a dialing operation in the standby state,
A DC loop is formed between the wired telephone II 50 and the hybrid circuit 47 of the wireless telephone adapter 40, which is detected by the DC detection circuit of the hybrid circuit 47, and the control circuit 53 is notified of this fact. Then, the control circuit 53 instructs the synthesizer 41 to use a specific transmission/reception channel, thereby causing the transmitter 42 and the receiver 43 to operate continuously, respectively, and transmitting a transmission signal and an ID code to the connected master device 20. On the other hand, when a radio wave arrives from the wireless telephone adapter 40, the connection master device 20 detects it with two received electric field detection circuits, and verifies the ID code with an identification signal detection circuit 31. As a result of this verification, when it is recognized that it is a connection request to itself and the arrival of the transmission signal is confirmed, the control circuit 33 creates a transmission response signal and sends this signal from the transmitter 22 along with the instruction information of the transmission/reception channel. The data is sent back to the wireless telephone adapter 40, thereby causing the wireless telephone adapter 40 to set a transmission/reception channel for telephone calls. After this control, the line relay 24 is turned on to close the DC loop of the subscriber line 10. Further, in this state, when the subscriber operates the dial keys to input the other party's telephone number and the dial signal is supplied to the wireless telephone adapter 40, the wireless type adapter 40 transfers this dial signal to the dial signal detection circuit 51. is detected and transmitted to the control circuit 53. Then, the control circuit 53 causes the transmitter 42 to transmit dial information corresponding to the dial signal to the connection master device 20 via the wireless line 30. As a result, the control circuit 33 of the connection master device 20 causes the dial signal generating circuit 32 to generate a dial signal consisting of a DTMF signal in accordance with the dial information, and sends this dial signal to the subscriber line 10. A call is then made to the desired party, and if the called party responds, a communication path is established between the wired telephone 50 and the telephone of the other party, and subsequent communication between the two is possible.

In this way, if there is a real surplus, the existing tIA telephone 11
150 can be used as a wireless telephone simply by connecting it to the wireless telephone adapter 40. Therefore, if you install a wireless telephone with a handset, dial keys, etc. like a wireless telephone device, separately from a wired telephone. In comparison, it is possible to make wireless calls with a simpler and cheaper system.Furthermore, since a wired telephone can be used as is, the subscriber can use his or her preferred telephone.Furthermore, the battery 54 of the wireless telephone adapter 40 If the output voltage of the main device 20 decreases or the commercial power supply of the connected master device 20 experiences a power outage, you can disconnect the wired telephone 50 from the wireless telephone adapter 40 and connect it directly to the subscriber line 10, allowing you to make calls without any problems. can be done.

Note that the present invention is not limited to the above embodiments. For example, the present invention can be similarly used even when a wired telephone transmits a dial pulse as a dial signal or when the subscriber line 10 is used for dial pulses. That is, when a wired telephone transmits dial pulses, it is sufficient to detect the dial pulses using the DC detection circuit provided in the hybrid circuit 47 and notify the control circuit 53, and when the subscriber line 10 is for dial pulses, A dial pulse can be sent to the subscriber line 10 by turning on and off the line relay 24 in accordance with the dial information sent from the wireless telephone adapter 40. Further, in the embodiment described above, the wireless telephone adapter 40 is provided with a sounder 52 and the sounder 52 generates a ringing tone, but the wireless telephone adapter 40 is provided with a ringing signal generation circuit to generate an incoming call from the connected parent device 20. When notified, the ringing signal generation circuit may generate a ringing signal and supply it to the wired telephone, thereby causing the wired telephone to generate a ringing tone. In addition, the configuration of the connection parent device, the connection mechanism of the wireless telephone adapter, the configuration of the DC power supply means, the telephone control means, etc. can be modified in various ways without departing from the gist of the present invention.

[Effects of the Invention] As detailed above, according to the present invention, there is a connection master device connected to a wired telephone line, and a wired telephone connected to the connection master device via a wireless line. a wireless telephone adapter, and the connecting parent device includes a wireless transmitting/receiving means for transmitting and receiving call signals and predetermined control signals related to incoming and outgoing calls to and from the wireless telephone adapter, and transmitting and receiving call signals to and from the wired telephone line. and line control means for controlling the wired telephone line in response to a control signal from the wireless telephone adapter received by the wireless transmitting/receiving means and transmitting a dialing signal.
and a connection mechanism for detachably connecting a wired telephone to the wireless phone adapter, and DC power for supplying DC power to the wired telephone in place of the DC power supplied from the exchange via the wired telephone line. a wireless transmitting/receiving means for transmitting and receiving call signals and IIJ control signals related to incoming and outgoing calls between the supply means and the connection parent device; By providing a telephone control means that detects a call signal and a dial signal and causes the wireless transmission/reception means to transmit an Il control signal corresponding to these signals to the connection master device, an existing wired telephone can be used as is. =18-, thereby making it possible to provide a wireless telephone connection device that is efficient, inexpensive, and capable of downsizing the system.

[Brief explanation of the drawing]

FIG. 1 is a functional block diagram showing the configuration of a wireless telephone connection device according to the present invention, FIG. 2 is a circuit block diagram showing the configuration of a wireless telephone connection device in an embodiment of the present invention, and FIG. 3 is an explanation of the prior art. 1 is a schematic configuration diagram of a wireless telephone device used for. A...Connection parent device, B...Wireless telephone adapter, A1
．． B3... Wireless transmission/reception means, A2... Line control means, B1... Connection mechanism, B2... DC power supply means,
B4... Telephone control means, 10... Subscriber line, 20
... connection parent device, 30 ... wireless line, 40 ... wireless telephone adapter, 50 ... wired telephone, 21.41.
... Synthesizer, 22.42 ... Transmitter, 23.4
3...Receiver, 24...Line relay, 25.47
...Hybrid circuit, 26.45... Transmitting antenna, 27.44... Receiving antenna, 28... Incoming call detection circuit, 29.48... Reception electric field detection circuit, 31.4
9... Identification signal detection circuit, 32... Dial signal generation circuit, 33.53... Control circuit, 34... Rectification stabilization circuit, 35... Power supply terminal, 46... Connector,
51... Dial signal detection circuit, 52... Sounder, 54... Battery, 55... Charging terminal. Applicant's agent Patent attorney Takehiko Suzue Figure 3

Claims (1)

[Claims] It is composed of a connection parent device connected to a wired telephone line, and a wireless telephone adapter connected to the connection parent device via a wireless line and to which a wired telephone is connected, and the connection parent device is connected to the wireless telephone. a wireless transmitting/receiving means for transmitting and receiving call signals and predetermined control signals related to incoming and outgoing calls to and from the adapter; and a wireless telephone adapter for transmitting and receiving call signals to and from the wired telephone line and received by the wireless transmitting and receiving means; a line control means for controlling the wired telephone line and sending out a dialing signal in response to a control signal from the wireless telephone adapter; and a connecting mechanism for detachably connecting the wired telephone; A DC power supply means for supplying DC power to the wired telephone set in place of the DC power supplied from the exchange via the wired telephone line, and transmitting/receiving of call signals and control signals related to call origination/reception between the connection master device. a wireless transmitting/receiving means for transmitting and receiving call signals to and from the wired telephone, detecting a calling signal and a dialing signal output from the wired telephone, and transmitting control signals corresponding to these signals by the wireless transmitting and receiving means; 1. A wireless telephone connection device comprising: telephone control means for transmitting data to a parent device.