JPH0227822A - Cordless telephone set - Google Patents

Abstract

PURPOSE:To execute each function properly and economically if function or constitution differs by sending control information representing its function from a stationary equipment and a radio telephone set respectively and executing the control operation of an opposite equipment based on the said control information. CONSTITUTION:A radio telephone set 11 gives a privacy circuit storage code 1e representing the radio telephone set having a privacy call circuit to a call signal 1c in addition to the provision of an identification code 1a representing a caller radio telephone set 11 itself and an identification code 1b identifying a called stationary equipment 12 and sends the result to the stationary equipment 12. The stationary equipment 12 gives a privacy call storage code 1f when the stationary equipment 12 has a privacy call circuit in addition to the provision of an identification code 1b of the stationary equipment 12 and an identification code 1a of the radio telephone set 11 to a call reply signal 1d and sends the resulting signal. Thus, the function of the opposite equipment is identified from the control information of the opposite equipment even if the function or configuration differs and the function is executed properly and economically.

Description

DETAILED DESCRIPTION OF THE INVENTION OBJECTS OF THE INVENTION (Field of Industrial Application) The present invention relates to a cordless telephone having a radiotelephone and a fixed device connected to each other via a radio line.

(Prior Art) In this type of cordless telephone, a pair of a wireless telephone and a fixed device is fixed in advance, and a specific identification code is provided in advance for each of the wireless telephone and the fixed device. Only when there is a match between the device and the fixing device, the two are connected. This identification code is a code necessary to prevent erroneous connection between a wireless telephone and a fixed device, and is generally assigned to be unique among cordless telephones using the same frequency band. Since the fixed device can always identify the wireless N telephone that constitutes the bare device using the identification code, it is possible to identify the wireless telephone that has multiple configurations and service types.
There is no need to complete one lesson. Note that the configuration and service type of the wireless telephone refer to service functions other than the most basic telephone service function, or applied services added to this telephone service function. There are types of function implementation methods, non-telephone services, etc.

On the other hand, recently, the configuration of cordless telephones has diversified, and cordless telephones have been developed that have a parent-child telephone configuration in which multiple wireless telephones are connected to one fixed device, and even more so. A multi-zone cordless phone has also been proposed that can be configured into any pair at any time.

(Problems to be Solved by the Invention) As described above, it is possible for a wireless telephone to access multiple fixed devices, or for a fixed device to be able to arbitrarily connect to one of multiple wireless telephones. In a cordless telephone with a similar configuration, various combinations of fixed equipment and wireless telephones are possible. If the functions, configurations, service functions, etc. of each wireless telephone and fixed device differ depending on each wireless telephone and fixed device, the differences in each function and configuration will be explained in each fixed line II! However, this method of having each fixed device and wireless telephone memorize the differences in each function/function and configuration makes the device configuration complicated and non-standard. There is an issue of economics.

The present invention has been made in view of the above-mentioned circumstances, and its purpose is to eliminate the need for I! An object of the present invention is to provide a cordless telephone that can appropriately and economically implement each function when the functions and configurations of the telephone and the fixed VR station are different from each other.

(Structure of the Invention) (Means for Solving the Problems) In order to achieve the above object, the cordless telephone of the present invention includes a wireless telephone and a fixed device that are connected to each other via a wireless line. When a fixed device and a wireless telephone connect a wireless line between the two, in addition to the connection $13111 information necessary for this connection, each has an Ib1JIII information transmitting means for transmitting ti control information indicating its own functions to the other party. and an execution means for receiving the control information transmitted from the i control information transmitting means of the other party and executing the ilJ III operation for the function based on this control information. The gist is that.

(Function) In the cordless telephone of the present invention, the fixed device and the wireless telephone have the necessary connections i, +
In addition to the +a information, each transmits control information indicating its own function, and the other party's wireless telephone and fixed device receive the control information and execute control operations for the function based on the control information.

(Example) Hereinafter, the present invention will be explained in detail using the drawings.

FIGS. 1 and 2 are explanatory diagrams showing the flow of calling and receiving operations of a cordless telephone according to an embodiment of the present invention, respectively; ! and Figure 4 are cordless telephones that perform the operations shown in Figures 1 and 2, respectively! FIG. 2 is a circuit block diagram showing the configuration of a telephone fixed device and a wireless telephone.

First, the configuration of the fixing device will be explained with reference to FIG. The fixed equipment @12 shown in the same figure is connected to the telephone line 29 and converts the telephone line 21 into 4 wires 2-41.
! J conversion circuit 21, a baseband processing circuit 22 connected to this 21m-4 line conversion port path 21, and switch circuits 23a and 2 connected to this baseband processing circuit 22.
3b, a transceiver radio circuit 24 connected to the baseband processing circuit 22 via the switch circuits 23a and 23b, an antenna 25 connected to the transceiver radio circuit 24, and the baseband processing circuit 22, The vIw CPtJ 27 connected to the switch circuits 23a, 23b and the transmitting/receiving radio circuit 24, and the control CPU 2
7 and a memory 28 connected to the memory 28.

Furthermore, the wireless telephone 11 shown in FIG.
an antenna 43 for receiving transmission information from the antenna 25 and transmitting information to the antenna 25; and a transmitting/receiving radio i circuit 3 connected to the antenna 43.
1, switch circuits 32a and 32b connected to this transmitting/receiving radio circuit 31, and one of the switch circuits 32a.
a baseband circuit for receiving calls 33 connected to the other switch circuit 32b, a baseband circuit for sending calls connected to the other switch circuit 32b, a receiver 40 connected to the baseband circuit for receiving calls 33, and a baseband circuit for sending calls connected to the baseband circuit for receiving calls 33; a transmitter 41 connected to the baseband circuit 34; the transmitter/receiver radio circuit 31;
From the control CPU 35 connected to the switch circuits 32a and 32b1, the receiving baseband circuit 33 and the transmitting baseband circuit 34, and the memory 35, dial key 37, display panel 38, and sounder 39 connected to the t111aFr ICPU 35, respectively. It is configured.

In the configuration as described above, an incoming call from the telephone line 29 is transferred to the 2-wire to 4-wire conversion circuit 21 of the fixed device 12.
The signal is supplied to the baseband processing circuit 22 for baseband processing, and is transmitted from the antenna 25 to the radio telephone 11 via the transceiver radio circuit 24 under the control of the control CPU 27 and memory 28.

The incoming call transmitted from the antenna 25 of the fixed device 12 in this way is received by the transmitting/receiving radio circuit 31 via the antenna 43 of the wireless telephone 111, and is sent from the sounder 39 under the control of the control CPLJ 35 and the memory 36. A ring tone is output. When the called party on the radiotelephone 11 side responds to the ringing tone, the incoming call from the telephone line 29 is connected to the radiotelephone 11 via the fixed device 12, and the called party on the radiotelephone 11 receives the telephone receiver 40 and transmitter. It is possible to talk to a caller (not shown) on the telephone line 29 side via the handset 41.

When a caller on the wireless telephone 11 side makes a call, the outgoing call is transmitted from the transceiver radio circuit 31 of the wireless telephone va11 to the fixed device via the antenna 43 under the control of the control CPU 35 of the wireless telephone va11. 12. An outgoing call transmitted from the antenna 43 of the $1'R telephone 11 is received by the transmitting/receiving radio circuit 24 via the antenna 25 of the fixed device 112, and is sent via the telephone line 29 under the control of the 1III official CPU 27. is sent to a called party (not shown), the called party is called, and the called party responds, causing the caller from the wireless telephone 11 to fix his/her jaw! 12
and a telephone line 29 to communicate with the called party.

Next, with reference to FIGS. 1 and 2, the operation according to an embodiment of the present invention will be described. In addition, in this embodiment, a plurality of wireless telephones 11 and fixed devices 12 are provided, and each of the wireless telephones 11 and fixed devices 12 includes, for example, a mixture of devices equipped with a confidential communication circuit and devices not equipped with a confidential communication circuit. Explain about multi-zone cordless phones.

In addition, for multi-zone cordless telephones, wireless telephone 1
1 and the fixed device 12, it is necessary to use an identification code in a manner different from that of a one-to-one cordless telephone, but this is not the essence of this embodiment, so here, the wireless telephone 11 is The description will be made assuming that the fixing device 12 has an identification code 1a and the fixing device 12 has an identification code 1b.

First, a case will be described with reference to FIG. 1 in which a call 8111 having a confidential circuit makes a call to a fixed device 12 having a confidential circuit.

When the wireless telephone 11 makes a call to the fixed device 12, it transmits a calling signal 1C from the antenna 43.
In addition to providing an identification code 1a indicating the 1111 itself and an identification code 1b identifying the fixed device 12 to which the call is being made,
A confidential circuit holding code 1e indicating that the wireless telephone has a confidential circuit is attached and transmitted to the fixed jaw N12.

The fixed device 12 receives the calling signal 1C transmitted from the wireless telephone 11 via the antenna 25, and from this calling signal 1C, the identification code 1b representing the fixed device 12 of the calling destination is fixed. Check that it matches the identification code 1b stored in ¥al12 itself, and if it matches,
A call response signal 1d is sent back to the wireless telephone 11 that is the calling source. In this case, the fixed jaw δ12 transmits the call response signal 1d
In addition to assigning the identification code 1b of the fixed device 12 and the identification code 1a of the wireless telephone 1111 that made the call, it indicates that the fixed device 12 has a confidential communication circuit and can provide confidential communication service during a call. Add a confidential circuit holding code 1f and send.

By the way, no 11? ! In the case of a multi-channel system in which the radio circuit between the handset 11 and the fixed IIfiff 12 has separate control channels and communication channels, the fixed device 12 transmits the call response signal 1d including the communication channel designation signal 1g. do.

The call response signal 1d returned from the fixed device f12 is received by the wireless telephone 11, and when the radio telephone 11 confirms that the call response signal 1d is addressed to itself, it reads the call response signal 1d. The wireless telephone 1 detects the confidential communication circuit retaining code 1f included in the wireless telephone 1, identifies that the confidential communication service is possible,
The information is displayed on one of the display panels 38. Look at this display,
The caller of the wireless telephone 11 performs operations such as starting up the secret line circuit.

In addition, in the above-described calling operation from the wireless telephone 11, if the wireless telephone 11 is equipped with a confidential circuit, but the fixed device 12 does not have a confidential circuit, the fixed device 1
2, the call response signal 1d to be returned is sent to the radio telephone 11 without adding the privacy circuit holding code 1f. Therefore, the wireless telephone 1 that received this call response signal 1d
The II 111 identifies that the club circuit holding code 1f is not present in the call response signal 1d, confirms that the confidential service is not possible, and notifies the caller.

Next, the operation when there is an incoming call to the wireless telephone e111 is explained in the second section.
This will be explained with reference to the figures.

When the fixed device 12 having a private communication circuit receives a call to the wireless telephone 11, it transmits one incoming call signal to the wireless telephone 11. As in the case of the calling operation described above, this incoming call signal 1h is given the identification code 1a of the wireless telephone 11 of the called destination and the identification code 1b of the fixed device 112 of the calling source. 12 is transmitted with a secret circuit holding code 1f indicating that it has a secret circuit. When the wireless telephone 1111 receives this incoming call signal 1h, the wireless telephone 1111 detects that the confidential circuit holding code 1f is present in the incoming call signal 1h, and
A @scale response signal 11 to which a secret circuit holding code 1e indicating that 111 itself also has a secret circuit is added together with identification codes 1a and 1b is sent back to the fixed device [12]. Prisoner M12
When it receives this incoming call response signal 11, it detects the secret circuit holding code 1e in the incoming call response signal 11 and activates the secret circuit.

In the above-mentioned incoming call operation, fixed equipment! If the wireless telephone 112 does not have a confidential circuit, the confidential circuit holding code 1r is not added to the incoming call signal 1h, and if the wireless telephone 11 does not have a confidential circuit, the incoming call response signal 11 Since the confidential communication circuit retaining code 1e is not provided within the system, the wireless telephone 11 and the fixed device 12 can each recognize that the confidential communication service is not available.

As described above, whether or not a confidential service is provided between the wireless telephone 11 and the fixed device 12 is determined by whether or not there is a confidential circuit maintenance code in the calling signal, the calling response signal, the incoming call signal, and the incoming call response signal. Determined by

Note that, in addition to the method described above, negotiation of the secret circuit key can also be performed using a similar method. In addition to basic call functions, such as identifying whether the wireless telephone is for non-telephone services and switching the audio level, all additional services are negotiated in this way. It is possible.

Further, in a multi-zone cordless telephone, when determining the bearing of a wireless telephone and a fixed device by location registration, a code for performing similar negotiation may be sent and received during the operation at the time of location registration.

(Effects of the Invention) As explained above, according to the present invention, the fixed device and the wireless telephone each transmit control information indicating their own functions in addition to the connection control information necessary for connecting the two. and the other party's wireless telephone and fixed device receive the control information and perform control operations for the possibility based on this f11 control information, so that the fixed device and the fixed device
Even if the functions and configurations of i-telephones are different, the 81 functions of the other party's device can be identified from the control information of the other party's wireless telephone or fixed device, thereby allowing the functions to be executed appropriately and economically. . As a result, even if multiple wireless telephones and fixed devices with different service functions and configurations coexist within one cordless telephone system, each
The functions of telephones and fixed equipment can be performed properly. Furthermore, when adding new functions to an existing cordless telephone system, it is easy to maintain compatibility between the old and new devices even if the system includes existing wireless telephones that do not have similar applied functions. .

[Brief explanation of the drawing]

1 and 2 are explanatory diagrams showing the flow of calling and receiving operations of a cordless telephone according to an embodiment of the present invention, and FIGS. 3 and 4 are respectively the same as those shown in FIGS. 1 and 2. FIG. 2 is a circuit block diagram showing the configuration of a fixed device for a cordless telephone and a wireless telephone in operation. 11... Wireless telephone 12... Fixed device 24...
・Transmission/reception radio circuit 25...Antenna 27...Control CPU 29
...Telephone line 31...Transmitting/receiving radio circuit 35...Control mCPU 43...Antenna

Claims (1)

[Claims] In a cordless telephone having a wireless telephone and a fixed device that are connected to each other via a wireless line, when the fixed device and the wireless telephone connect the wireless line between them, in addition to connection control information necessary for this connection. Each of them has a control information transmitting means for transmitting control information indicating its own function to the other party, and each receives the control information transmitted from the control information transmitting means of the other party, and based on this control information. A cordless telephone, each comprising execution means for executing control operations for the functions.