JP2781283B2 - Cordless telephone - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cordless telephone comprising a base unit connected to a telephone line and a base unit connected to the base unit by a wireless line. The present invention relates to a cordless telephone capable of prohibiting the use of a lost or stolen child device without changing an ID code used for communication even if the device is lost or stolen.

[0002]

2. Description of the Related Art Conventionally, a cordless telephone has been provided which includes a master unit connected to a telephone line and a plurality of slave units connected to the master unit by a wireless line. This type of cordless telephone has a system code assigned to the cordless telephone itself and a unique slave unit code (slave unit number) assigned to each slave unit. In communication between the devices, the system code and the child device code are exchanged to confirm each other and then perform communication.

[0003]

In such a conventional cordless telephone, if the slave unit is stolen, for example, in order to prevent the stolen slave unit from being used by another person without permission, it is necessary to use a conventional method. Discard the cordless telephone and purchase a new cordless telephone with a set of parent device and child device, or purchase a new child device only and replace it with the parent device and child device at the manufacturer factory etc. I make a wireless connection and use I
It was necessary to change the D code (system code).

[0004] Therefore, in a cordless telephone having a plurality of slaves, one slave is lost or stolen, and the previous master and other slaves are wasted, or IDs are newly added. There is a problem that attaching the code makes the original ID code permanently unusable.

[0005] The present invention has been made in view of such circumstances, and its purpose is to prevent loss or theft of a slave unit without changing the ID code used for communication even if the slave unit is lost or stolen. An object of the present invention is to provide a cordless telephone capable of prohibiting the use of a child device.

[0006]

In order to solve the above-mentioned problems, a cordless telephone according to the present invention comprises a system code assigned to the cordless telephone itself, a unique handset code assigned to the handset, Permission of use of the slave unit, a sub-code for determining whether to prohibit, is assigned, and, in the master unit and the slave unit, these system code, slave unit code and sub-code are stored, The master unit allows the use of the slave unit corresponding to the use permission data composed of a predetermined combination of the system code, the slave unit code, and the subcode, while the slave unit code and the subcode are based on the operation of the user. a storage unit for the a predetermined combination of disabled data storage, the storage unit
A communication control unit is one that was provided to prohibit the use of the slave unit corresponding to the stored disabled data.

In the cordless telephone according to the present invention, the base unit stores an input unit for inputting a subcode and the subcode input by the input unit together with the system code and the slave unit code. A storage unit,
A transmission unit for transmitting a series of code groups including the system code, the child device code, and the subcode stored in the storage unit to the child device side is provided, and the child device is transmitted from the transmission unit of the parent device. A receiving unit that receives a series of transmitted code groups, and when the system code and the slave unit code of the code groups received by the receiving unit match, stores the code group as a code group assigned to itself. And a storage unit for performing the operation.

[0008]

[Function] If the slave unit is lost or stolen, the user operates the base unit of the cordless telephone to prohibit use of the slave unit code and subcode of the lost or stolen slave unit. Register as a code. That is, it is stored in the storage unit.
You. Here, to register the use prohibition data, in order to remove permission to use data of a child machine to lost or stolen, etc., the write-free that the data to be determined that the use of its authorization data is invalid Say. As a result, the communication control unit ignores the call signal or the like from the lost or stolen slave unit even when it is received, and does not transmit the signal to the slave unit. In addition, the lost or stolen slave unit
Record the slave unit code and subcode as use-prohibited data.
By storing this data in the storage unit,
New functions can be added. For example,
Newly purchased using the same slave unit number as the lost slave unit
When registering a slave unit, use it as a license code.
If you have incorrectly set a code that has been
Functions such as invalidating the setting and displaying an error
Both are possible.

On the other hand, in a cordless telephone having a plurality of slaves, if one of the slaves is lost or stolen and a new slave is purchased as a slave of the cordless phone, By operating the input unit of the master unit, the subcode of the newly purchased slave unit is input. This subcode is, of course, a different subcode from the subcode assigned to the lost or stolen slave unit.

The storage unit of the master unit stores the subcode input by the input unit together with the system code and the slave unit code, and the transmission unit of the master unit stores the system code and the slave unit code stored in the storage unit. And a series of codes consisting of the subcode and the subcode are transmitted to the newly purchased child device.

On the other hand, on the side of the newly purchased slave unit, a series of codes transmitted from the transmission unit of the master unit is received by the receiving unit, and the system code and the slave unit code of the received code group are received. , Matches the code assigned to itself, the subsequent subcode is newly stored in the storage unit as the subcode assigned to itself.

Thus, the newly purchased slave unit can be used with the same slave unit code as the lost or stolen slave unit. Also, there is no need to assign a new system code to the cordless telephone itself.

[0013]

An embodiment of the present invention will be described below with reference to the drawings.

FIG. 1 is a block diagram showing an electrical configuration of a base unit of the cordless telephone of the present invention, and FIG. 2 is a block diagram showing an electrical configuration of each slave unit of the cordless telephone of the present invention. The cordless telephone according to the present invention has a configuration including one master unit A and a plurality of slave units B1 to Bn.

In FIG. 1, a base unit A includes a line control unit A1 connected to the telephone line 1 and a communication control unit A2 for controlling the operation of the whole base unit A and determining whether the slave unit is used properly.
A transmitting unit A3 for transmitting a voice signal, a control signal, and the like transmitted from the other party's telephone via the telephone line 1 to the slave unit via the antenna A5, and a voice signal and a control signal transmitted from the slave unit. , An input unit A6 for inputting a dial number or instructing the use of a specific slave unit, a system code and a slave unit code unique to each slave unit. And a storage unit A7 for storing a sub-code and a sub-code common to each sub-unit.

The line control unit A1, the storage unit A7, and the communication control unit A2 are each connected in a bidirectional manner, and the communication control unit A2 has an output of the input unit A6 and a reception unit. The output of the unit A4 is connected to the input of the transmission unit A3.

In FIG. 2, a slave unit B1 has a communication control unit 11 for controlling the operation of the slave unit B1 as a whole, and a control signal and an audio signal input from a microphone (not shown).
, A transmitting unit 13 for transmitting an audio signal, a control signal, and the like transmitted from the master A via the antenna 14, a system code and the slave B1. Code (child device number) unique to the child device and the child device B1
And a storage unit 15 for storing the sub-code.

The storage unit 15 and the communication control unit 11 are bidirectionally connected. The output of the receiving unit 12 and the input of the transmitting unit 13 are connected to the communication control unit 11 respectively. Have been.

Since the configuration of the other slave units B2 to Bn is the same as that of the above-described slave unit B1, only the reference numerals are given here, and the description thereof is omitted. Further, the communication control unit A2 of the master unit A and the communication control units 11 to n1 of the slave units B1 to Bn are each configured by software that operates on a microcomputer.

In the above configuration, the system code assigned to the cordless telephone itself is "0", and the slave unit codes (slave unit numbers) assigned to the respective slave units B1 to Bn are "1" to "n", respectively. And the subcode commonly assigned to each slave unit is “0”. In addition, master unit A
The storage unit A7 has a system code “0” and each slave unit B
It is assumed that the presence / absence of use of 1 to Bn and the subcode “0” of each of the slave units B1 to Bn are stored. In addition, each slave unit B
1 to Bn, the system code “0”, each of the slave units B1 to B
The sub-unit number assigned to n (any one of 1 to n) and a sub-code "0" common to each sub-unit B1 to Bn
Are respectively stored.

Next, the operation of the cordless telephone having the above structure is described as (1) normal use operation, (2) operation when the slave unit B2 is lost or stolen, and (3) loss or theft of the slave unit B2. , The slave unit B2 'as an alternative slave unit
Will be described separately for the operation when newly purchased.

(1) Normal operation. For example, when a call is made from the slave unit B2, the slave unit B2 uses the control channel, and the system code “0”, the slave unit number “2”, and the subcode “0” stored in the storage unit 25. Are sequentially read and transmitted from the transmission unit 23 to the master unit A via the antenna 24.

In master unit A, a series of codes sent from slave unit B2 is received by receiving unit A4 and input to communication control unit A2.

The communication control unit A2 determines in the storage unit A7 whether the system code "0" added to the head of the input code group is the system code assigned to the cordless telephone itself. This is performed by comparison with the stored system code, and when it matches the system code assigned to itself, the presence or absence of the use state of the slave unit B2 is then compared with the data stored in the storage unit A7. If it is determined that the slave unit B2 is not in use, the sub-code is further matched with the storage unit A.
7 is confirmed by comparison with the subcode stored in.

When all of these confirmation operations are completed and the last sub-code matches, the communication control unit A2 controls the line control unit A1 to capture the telephone line 1, and uses the control channel to set the system code. And cord and cord
License data consisting of a predetermined combination with
, A confirmation signal is output to the slave unit B2 corresponding to the master unit A, and thereafter, the master unit A shifts to the communication channel.

On the other hand, the slave unit B2 which has received the confirmation signal also shifts from the control channel to the communication channel. As a result, a communication path is formed between the master unit A and the slave unit B2,
The telephone line 1 can be used by the slave unit B2.

(2) Operation when the slave unit B2 is lost or stolen. In such a cordless telephone, for example, the slave unit B2
User is lost or stolen, the user must
Is operated by operating the input unit A6 to input the prohibition of the use of the slave unit B2. Here, when you enter the disabled, in order to remove permission to use data of a child machine to lost or stolen, etc., refers to the write-free that the data for the use of its authorization data is to be determined to be invalid . This use prohibition data is stored in the storage unit A7.

As a result, the communication control unit A2 of the master unit A
Even if the system code “0”, the slave unit number “2”, and the sub-code “0” match, this code is stored in the storage unit A7 as the use prohibition data, so that the transmission from the slave unit A2 is ignored. , And transmission to the slave unit A2 is not performed.

(3) Operation when the slave unit B2 'is lost or stolen and a slave unit B2' is newly purchased as a substitute slave unit.

A user who has purchased a new slave unit B2 'operates the input unit A6 of the master unit A to set the system code of the new slave unit B2' to "0" and the slave unit number to "2". At the same time as registration, for example, "1" is registered as a subcode of the slave unit B2 '. That is, "1" is stored in the storage unit A7 as the subcode of the slave unit number "2".

The system code "0", the slave unit number "2", and the subcode "1" stored in the storage unit A7 are also transmitted to the slave unit B2 'via the transmitting unit A3 and the antenna A5. It is also stored in the storage unit 25 'of the slave unit B2'. In addition ,
The storage unit A7 of the parent device A stores the child device B2 as being in use.

As a result, the slave unit B2 'is assigned the slave unit number "2".
Slave unit B2 that has been lost or stolen
Cannot be used because the subcode is different.

[0033]

The cordless telephone according to the present invention comprises a system code assigned to the cordless telephone itself,
Since the sub-code is assigned to the slave unit separately from the slave unit number assigned to the slave unit, if the slave unit is lost or stolen, the slave unit of the corresponding slave unit is operated by the user. by storing in the storage unit a combination of code and subcode prohibited data and, it is possible to prohibit the use of only slave having a lost or stolen, or the like. Further, the user can use the same slave unit number again only by operating the master unit and the newly purchased slave unit. In addition, it is not necessary to assign a new system code to the cordless telephone itself, and effective use of radio waves can be achieved. In addition, lost or stolen
Uses the slave unit code and subcode of the slave unit that was difficult
By leaving it in the storage unit as prohibited data,
New functions using prohibited data can be added.
it can. For example, use the same slave unit number as the lost slave unit.
When registering a newly purchased cordless handset,
A prohibited code is incorrectly set as a use permission code.
When set, invalidate the setting and display an error etc.
Function can be added.

[Brief description of the drawings]

FIG. 1 is a block diagram showing an electrical configuration of a base unit of a cordless telephone according to the present invention.

FIG. 2 is a block diagram showing an electrical configuration of a cordless handset of the present invention.

[Explanation of symbols]

 A master unit A1 line control unit A2 communication control unit (determination unit) A3 transmission unit A4 reception unit A6 input unit A7 storage unit B1 to Bn slave unit 11, 21, 21 'communication control unit 12, 22, 22' reception unit 13 , 23,23 'Transmission unit 15,25,25' Storage unit

Claims (2)

(57) [Claims] 1. A cordless telephone comprising a master unit connected to a telephone line and a slave unit connected to the master unit by a wireless line, wherein the cordless telephone has a system assigned to the cordless telephone itself. A code, a unique handset code assigned to the handset, and permission to use the handset,
A sub-code for determining prohibition is assigned, and the master unit and the slave unit store a system code, a slave unit code, and a sub-code, and the master unit includes a system code. The use of the slave unit corresponding to the use permission data consisting of the predetermined combination of the code, the slave unit code and the subcode is permitted, but the use of the predetermined combination of the slave unit code and the subcode is prohibited based on the operation of the user a storage unit for and store the data, the storage of this storage unit
Cordless telephone, characterized in that the communication control unit is provided to prohibit the use of the slave unit corresponding to the use prohibition data. 2. The base unit has an input unit for inputting a subcode, a storage unit for storing the subcode input by the input unit together with a system code and a slave unit code, and a storage unit for storing the subcode. A transmission unit for transmitting a series of codes including the system code, the child device code, and the subcode to the child device is provided, and the child device has a series of codes transmitted from the transmission unit of the parent device. A receiving unit for receiving the group,
And a storage unit for storing the code group as a code group assigned to itself when the system code and the slave unit code of the code group received by the receiving unit match. 2. The cordless telephone according to 1.