JP2000286961A - Handset and base unit for cordless telephone system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a cordless telephone system for preventing combination of a base unit and a handset while providing a conventional function when the handset is erroneously placed on the cradle of a base unit which is not original one. SOLUTION: After a security code(SC) common with a base unit 200 is initially registered, a handset 100 accepts pressing of a handset register key 141 from a user. Thus, a control part 160 sets an identification mode switch flag 133 to 'ON'. Further, the control part 160 reports 'SC updating instruction' through a radio part 110 to the base unit 200. When the 'SC update instruction' is received, a control part 250 of the base unit 200 sets a handset identification mode flag 232 to 'ON', newly generates a security code 231 and transmits it to the handset 100. The handset 100 receives this security code and updates the security code 131.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cordless telephone system, and more particularly to a cordless telephone system which enables a telephone call when a common security code is stored between a parent and a child.

[0002]

2. Description of the Related Art For example, in a cordless telephone system for North America, when a child device is placed on a cradle of a parent device (a table for mounting the child device), a "security code" received from the parent device is received. Is compared with the “security code” of the own device, and when they match, it is determined that the master device is the master device of the own device. In the case of a mismatch, the slave unit receives a new “security code” from the master unit and updates its own security code. Specifically, the above update is performed in the following procedure.

(1) The master unit detects that the slave unit has been placed in its own cradle. (2) The parent device transmits its security code to the child device. (3) The slave unit compares the security code received from the master unit with its own security code and determines whether or not they match. (4) If the child device determines that they do not match, it sends the fact to the parent device.

[0004] (5) The master unit newly generates a security code and transmits it to the slave unit. (6) The slave updates its own security code with the security code received from the master. In many cases, the base unit of a cordless telephone system for North America or the like has a cradle but a simple configuration without a numeric key (numeric keypad) and a display device. For this reason, the user performs most of the necessary operations from the child device. Also, the specification is such that only one child device can be registered in one parent device (the parent device and the child device store a common and unique security code).

[0005]

By the way, in a use environment where a plurality of cordless telephone systems are arranged, if a child device is mistakenly placed in a cradle of another master device, the other device may be used. A problem arises in that a genuine slave set as a slave of the master loses the master and cannot talk. This is because in the case of a cordless telephone system for North America and the like, only one child device can be registered in one parent device. In this case, it is one solution to make it impossible to update the security code.However, in the case of the same cordless telephone system, if the same model is used, it is necessary to change the security It is necessary to provide a compatible function that enables code updates.

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned problems, and when the slave unit is erroneously placed in a cradle of a master unit which is not the original master unit while realizing the above-mentioned compatibility function, the master unit is required. It is an object of the present invention to provide a cordless telephone system that prevents a combination of a portable device and the portable device.

[0007]

In order to achieve the above object, in a cordless telephone system according to the present invention, a slave unit stores security information common to a parent and a child in a storage unit, and stores security information from one master unit. The cordless telephone system slave unit that receives the security information, determines whether the stored security information matches the received security information, and updates the security information common to the parent and child when the security information does not match. When the user sets the exclusion mode for exclusion of the connection with another parent device, an exclusion means is provided for excluding update of the security information when the determination unit determines that the two do not match.

Further, the base unit of the cordless telephone system according to the present invention stores the security information common to the parent and child in the storage unit, receives the security information from one handset, and receives the stored security information and the received security information. The judgment unit judges whether the security information matches the security information that has been added, and if it does not match, the master unit of the cordless telephone system that updates the security information common to the parent and child, eliminating the connection with other slaves If the exclusion mode is set, the determination unit determines that the password does not match.

Further, in the cordless telephone system according to the present invention, the common security information between the parent and child is stored in the first storage unit, the security information is received from one parent device, and the stored security information is received. The first determination unit determines whether or not the security information matches, and if the security information does not match, the slave unit that is updated to the common security information between the parent and child, and the common security information between the parent and child is stored in the second storage unit. The security information is stored and received from one child device, and the second determination unit determines whether or not the stored security information matches the received security information. A cordless telephone system comprising: a base unit for updating security information; wherein the slave unit is set by a user to an exclusion mode for eliminating connection with another base unit. When the first determination unit determines that they do not match, an exclusion unit that eliminates update of security information is provided, and when the master unit is set to an exclusion mode that excludes connection with another slave unit, When the second determining unit determines that the two do not match, the information processing apparatus includes an avoiding unit that avoids updating the security information.

[0010]

Embodiments of a cordless telephone system according to the present invention will be described below with reference to the drawings. (Embodiment) FIG. 1 is a functional block diagram of a slave unit and a master unit in a cordless telephone system according to the present embodiment.

The slave unit 100 includes a radio unit 110, a voice processing unit 120, a storage unit 130, an operation unit 140, a display unit 150, and a control unit 160. Wireless unit 1 of handset 100
10 modulates a carrier based on a baseband signal to be transmitted during transmission and outputs the modulated signal from an antenna, and demodulates a high-frequency signal input from the antenna into a baseband signal during reception.

An audio processing unit 120 inputs and outputs audio signals via a microphone 121 and a speaker 122, and performs amplification and the like. The storage unit 130 stores the security code 13
1. Security code match flag (hereinafter, referred to as “SC match flag”) 132 and identification mode switching flag 1
33 are stored. Where "security code"
Is a code for enabling a telephone call only through a base unit having a common security code, and this code is composed of, for example, 24 bits. The “SC match flag” is a flag indicating a result of comparing the security code received from the parent device with the security code 131. For example, if both match, "ON
(= 1) ", and if they do not match," OFF (= 0) "is set by the control unit 160.

Further, the "identification mode switching flag"
Whether to maintain the combination of the child device 100 and the parent device having the common security code,
Is set by the user selecting whether the combination should be updated each time the device is placed in the cradle of the base unit. Specifically, in the former case, when the slave unit registration key 141 of the operation unit 140 is pressed, it is set to “ON” by the control unit 160,
In the latter case, the slave unit registration release key 142 of the operation unit 140
Is pressed by the control unit 160 when is pressed.
Is set to

The operation unit 140 has a power key and other various operation keys, receives a key press from the user, and notifies the control unit 160 of that. The operation keys include a slave unit registration key 141 and a slave unit registration release key 142 for setting the identification mode switching flag 133 described above. The display unit 150 is configured by a liquid crystal display panel or the like, and displays numbers, characters, and the like input by keys from the user under the control of the control unit 160.

The control section 160 controls each section of the slave unit 100 and is realized by a microcomputer or the like. The control unit 160 stores a control program therein. The control unit 160 controls the security code update process executed when the slave unit 100 is placed on the cradle of the master unit 200 according to the control program.
In this case, control unit 160 controls wireless unit 110 such that various instructions and notifications corresponding to the values of SC match flag 132 and identification mode switching flag 133 are transmitted to base unit 200. The instruction to be transmitted from the child device 100 to the parent device 200 includes “SC update instruction” and “child device identification mode flag O”.
FF setting instruction ". Also, from the child device 100 to the parent device 2
Notifications to be transmitted to 00 include “SC mismatch notification” and “SC update notification”. The control section 160 includes a counter (not shown).

The "SC update instruction" is an instruction for requesting the parent device to generate a new security code and transmit it to the child device. This instruction is issued by the SC match flag 132
And when the identification mode switching flag 133 is both “ON”. "Slave unit identification mode flag OFF
The “setting instruction” indicates to the parent device that the child device identification mode flag 2
This is an instruction requesting that 32 be set to “OFF”.
This instruction is transmitted to the master unit when the SC match flag 132 is “ON” and the identification mode switching flag 133 is “OFF”.

The "SC mismatch notification" is a notification for notifying the parent device when the security code of the parent device does not match the security code of the child device. This notification is received when it is determined that the security code transmitted from the parent device does not match the security code of the child device immediately after the child device is placed in the cradle of the parent device (that is, the SC match flag 132 is set to “ OFF "), the parent device is always notified.

The "SC update notification" is a notification for notifying the parent device that the security code has been updated in the child device. This notification is sent to the SC match flag 1
32 and the identification mode switching flag 133 are both "OF"
When “F” or both are “ON”, the security code 131 in the storage unit 130 is updated with the new security code notified from the master unit, and then transmitted to the master unit.

Next, the flow of processing in the control unit 160, which is executed based on the control program, will be described with reference to the flowcharts of FIGS.
First, the control unit 160 waits until the power is turned on by the user (S201), and sets “0” to the counter (S202). The control unit 160 determines whether the identification mode switching flag 133 is “OFF” (S20).
3).

Next, when the identification mode switching flag 133 is "OFF", the control section 160 waits for reception of a security code transmitted from the base unit 200 (S20).
4), and loads its own security code 131 (S
205), and compare both security codes (S2).
06). As a result of the comparison, if the two security codes do not match, control unit 160 determines whether or not the counter is “1” (S207).
“OFF” is set in the match flag 132 (S20
8) The value of the SC match flag 132 is transmitted to the parent device 200 (S209). Thereafter, the control unit 160 sets “1” to the counter (S210). On the other hand, when the counter is "1", the security code of the own device is updated with the security code received from the master device 200 (S21).
1) The counter is cleared to "0" (S212) and "SC"
An "update notification" is transmitted to the parent device (S213).

On the other hand, if the two security codes match, the control unit 160 determines whether any one of the slave unit registration key 141 and the slave unit registration release key 142 has been pressed from the operation unit 140. (S214) If it is pressed, the child device registration key 141 or the child device registration release key 1
The value of the identification mode switching flag 133 is set according to 42 (S215).

Thereafter, control unit 160 waits for reception of a security code transmitted from base unit 200 (S21).
6) Load the security code of the own device (S21)
7), the value of the identification mode switching flag 133 is determined (S2).
18), comparing both security codes (S21)
9, S222). When the identification mode switching flag 133 is “ON” and the two security codes match, the control unit 160 sets the SC matching flag 132
Is set to “ON” (S225), and the wireless unit 110 is controlled to transmit an “SC update instruction” to the parent device 200 (S226). The control unit 160 sets the SC match flag 132 to “ON” when the identification mode switching flag 133 is “OFF” and both security codes match (S22).
0), the wireless unit 110 is controlled to transmit a “child device identification mode flag OFF setting instruction” to the parent device 200 (S221). When the security codes do not match regardless of the value of the identification mode switching flag 133, the control unit 160 sets the SC matching flag 132 to “OF”.
F ”(S223), and controls the wireless unit 110 to transmit“ SC mismatch notification ”to the parent device 200 (S2).
24).

Further, control section 160 determines whether or not a security code has been received from base unit 200 (S22).
7) When the value of the SC match flag 132 is "O"
N ”is determined (S231). When the value of the SC match flag 132 is “ON”, the control unit 160 updates the security code 131 of the own device with the received security code (S233), and transmits “SC update notification” to the master device 200. Control the wireless unit 110 (S2
34). On the other hand, the value of the SC match flag 132 is “OFF”
In the case of (S231), the control unit 160 ignores the received security code (S232).

Furthermore, the control unit 160
If the "notice of a slave unit identification impossible" is received from 0 (S22)
9) The voice processing unit 120 and the like are controlled so as to perform a “parent-child mismatch notification” (for example, sounding a buzzer) (S230). Thereafter, the control unit 160 waits for an operation from the user (S235), and repeats the above processing (S21).
4-S235). In this case, the “operation by the user” includes an operation of picking up the child device 100 from the cradle of the parent device 200 and pressing the child device registration key 141 and the child device registration release key 142, an ON / OFF operation of the power key, and the like. included.

As described above, the slave 100 according to the present embodiment
Are newly added to the slave unit registration key 141 and the slave unit registration release key 1.
42, and by storing the results of these key operations in the identification mode switching flag 133, the user can make a call only through the base unit having the common security code. It is possible to select whether or not to update the combination each time it is placed on the cradle.

The master unit 200 includes a radio unit 210, a slave unit detection unit 220, a storage unit 230, an operation unit 240, and a control unit 250.
Consists of The radio unit 210 of the parent device 200 has the same configuration as the radio unit 110 of the child device 100, and a description thereof will be omitted. The slave detection unit 220 includes a cradle for placing the slave, and when the slave is mounted on the cradle, notifies the control unit 250 of the fact.

The storage unit 230 stores the security code 23
1 and the child device identification mode flag 232 are stored. Here, the “slave unit identification mode flag” indicates whether the combination with the master unit having the common security code with the slave unit 100 is maintained according to an instruction received from the slave unit 100. This is a flag that is set as to whether the combination is updated each time 100 is placed on the cradle of the master unit. Specifically, in the former case, the control unit 250 sets “ON” when the “SC update instruction” is received from the slave unit 100, and in the latter case,
When the “child device identification mode flag OFF setting instruction” is received from the child device 100, the
F ".

The operation unit 240 has a power key, a PAGE key (a key for searching for a child device), and the like, accepts a key press from the user, and notifies the control unit 250 of that. The control unit 250 controls each unit of the parent device 200, and is realized by a microcomputer or the like. The control unit 250
Has a control program stored therein. Control unit 25
0 controls update processing of the security code, which is executed when the slave unit 100 is placed on its own cradle, according to this control program. In this case, the control unit 250
Controls the process related to the update of the security code, which is executed when the slave unit 100 is placed in its own cradle. In this case, the control unit 250 controls the wireless unit 210 to transmit various notifications to the child device 100 according to the child device identification mode flag 232 and the content of the instruction and the notification received from the child device 100. . From the parent device 200 to the child device 10
The notification sent to 0 is "Security code"
And a "child device identification mode flag change notification" and a "child device identification disabled notification".

There are two types of "security code" notified from the parent device 200 to the child device 100. One is a “security code” always transmitted to the child device 100 when the child device 100 is placed on the cradle of the parent device 200. The other is a slave unit identification mode flag 23.
2 is set to “OFF” and the child device 1
00, the “SC mismatch notification” or the “SC update instruction” is received, and the slave unit identification mode flag 232 is set to “O
The “security code” is newly created by the control unit 250 and transmitted to the slave unit 100 when the “SC update instruction” is received at “N”.

The “child device identification mode flag change notification” is a case where the child device identification mode flag 232 is set to “ON”, and receives a “child device identification mode flag OFF setting instruction” from the child device 100. This is a notification that is transmitted to the child device 100 after the child device identification mode flag 232 is changed to “OFF”. The “slave unit identification impossible notification” is transmitted to the slave unit 100 when the “SC mismatch notification” is received from the slave unit 100 when the slave unit identification mode flag 232 is set to “ON”. Notification.

Next, the flow of processing in the control unit 250 executed based on the control program will be described with reference to the flowchart of FIG. At first,
The control unit 250 waits until the power is turned on by the user (S401), and sets the slave unit identification mode flag 232 to “O”.
FF ”is set (S40).
2). If “OFF” is set, the control unit 250
Waits for a notification that the handset 100 has been placed on the cradle from the handset detection unit 220 (S403).
00 is loaded (S40).
4) The wireless unit 210 is controlled so as to transmit to the slave unit 100 (S405). After that, the control unit 250
0 to wait for various data transmitted (S40)
6).

Next, when the slave unit identification mode flag 232 is "ON" and the "SC mismatch notification" is received from the slave unit 100, the control unit 250 The wireless unit 210 is controlled so as to transmit the “impossible notification” (S413). The control unit 250 also controls the slave 1
00, the slave unit identification mode flag 232 is set to “OF”.
F ”(S410), and controls the wireless unit 210 to transmit a“ slave device identification mode flag change notification ”to the slave device 100 (S411). Further, when the control unit 250 receives the “SC update instruction” from the slave unit 100, the control unit 250 creates a new security code (S415), and
The wireless unit 210 is controlled to transmit the created security code (S416). Thereafter, the control unit 250
Determines whether or not “SC update notification” has been received from child device 100 (S 417), and updates the security code of parent device 200 if received (S 418).

On the other hand, the control section 250 determines whether or not the slave unit identification mode flag 232 is "OFF" (S407).
In the case of “OFF”, “SC mismatch notification” from the slave unit 100
Is received (S414), a new security code is created (S415), and the wireless unit 210 is controlled to transmit the created security code to the slave unit 100 (S416). After that, the control unit 250
It is determined whether or not “SC update notification” has been received from (S4)
17) If received, the security code of the parent device 200 is updated (S418).

The control unit 250 sets the slave unit identification mode flag 232 to "ON" when the slave unit identification mode flag 232 is "ON" and an "SC update instruction" is received from the slave unit 100. (S420), and the same processing as above is performed (S415 to S418). Thereafter, the control unit 250 waits for an operation from the user (S421), and repeats the above processing (S403 to S421). In this case, “operation by user” includes the power key
N / OFF operation and the like are included.

As described above, parent device 200 of the present embodiment
Has a new slave unit recognition mode flag,
The user can select, according to an instruction from the child device, whether to enable communication only with the child device having the common security code or to update the combination each time the child device is placed on the cradle. it can. Next, the child device 10
The processing operation when the control unit 160 of the master unit 200 and the control unit 250 of the master unit 200 update the security code will be described with reference to the communication sequence diagrams of FIGS.
Note that the “dashed arrow” in these figures is
0 indicates that the main unit 200 is placed on the cradle.

FIG. 5 shows the child unit identification mode flag 232 of the parent unit 200 as an initial state (for example, when purchasing a product).
FIG. 9 is a communication sequence diagram for initially registering a common security code between a parent and a child when a value of an identification mode switching flag 133 of the child device 100 is set to “OFF”. Further, FIG. 5 also shows a communication sequence in the case where both security codes are updated in accordance with an instruction from the child device 100 side.

First, master device 200 detects that slave device 100 is mounted on the cradle. Thereby, master device 200 loads its own security code 231 and transmits it to slave device 100. Next, upon receiving the security code from parent device 200, child device 100 loads its own security code and determines whether or not it matches the received security code. Furthermore, the child device 10
0 transmits “SC non-match notification” (or “SC match notification”) to the base unit 200 as the determination result.

Thus, when the slave unit identification mode flag 232 is “OFF”, the master unit 200
When the “SC mismatch notification” is received from 0, a new security code is created and transmitted to the slave unit 100. Slave device 100 updates its own security code with the security code received from master device 200, and transmits an “SC update notification” to master device 200.

Thereafter, parent device 200 waits for the “SC update notification” transmitted from child device 100. As described above, both the child device identification mode flag 232 of the parent device 200 and the identification mode switching flag 133 of the child device 100 are “OFF”.
Is set to, a common security code is registered between the parent and child.

Subsequently, the handset 100 receives a press of the handset registration key 141 from the user. Thereby, the child device 1
The identification mode switching flag 133 of 00 is changed to “ON”. After that, the child device 100 is
00 cradle. Next, master device 200
When the slave 100 detects that it is mounted on its own cradle, it transmits its own security code to the slave 100.

Thus, the child device 100 loads its own security code and compares the two security codes as described above. When both security codes match, slave unit 100 transmits “SC update instruction” to master unit 200. When receiving “SC update instruction” from child device 100, parent device 200 changes child device identification mode flag 232 from “OFF” to “ON”, newly creates a security code, and transmits it to child device 100. . Thereafter, as described above, master device 200 waits for the “SC update notification” transmitted by slave device 100 after the security code is updated.

As described above, when the “child unit identification mode flag” of the parent device 200 is set to “OFF” and the identification mode switching flag 133 of the child device 100 is set to “ON”, and the security codes between the parent and child match. The security code between parent and child is updated. FIG. 6 shows a case where the slave unit identification mode flag 232 of the master unit 200 is set to “OFF” and the identification mode switching flag 133 of the slave unit 100 is set to “ON”, and the communication is performed when the security codes do not match between the master unit and the slave unit. It is a sequence diagram. In FIG. 6, the description of the sequence common to FIG. 5 is omitted.

The slave 100 compares the security codes of both, and sends an “SC mismatch notification” to the master 200. The parent device 200 sets the child device identification mode flag 232 to “O”.
Since it is "FF", a new security code is created and transmitted to the slave unit 100, and the "SC update notification" from the slave unit 100 is awaited. However, since the security code initially received from master device 200 and the security code of own device do not match, slave device 100 re-creates master device 20 again.
Update by the security code transmitted from 0 is not performed and is ignored.

As described above, when the slave unit identification mode flag 232 of the master unit 200 is set to “OFF” and the identification mode switching flag 133 of the slave unit 100 is set to “ON”, first, When the security code transmitted from device 200 and the security code stored in child device 100 do not match, updating of the security code between parent and child is excluded.

In FIG. 7 to FIG. 9, the description of the parts common to the sequence of FIG. 5 will be omitted, and different points will be mainly described. FIGS. 7A and 7B show security between the parent and child when the child device identification mode flag 232 of the parent device 200 is set to “ON” and the identification mode switching flag 133 of the child device 100 is set to “OFF”. FIG. 9 is a diagram showing a communication sequence when codes match and when codes do not match.

FIG. 7A is a communication sequence diagram when the security code matches between the parent and child. Slave device 100
After determining that the two security codes match, the master 2 issues a “child device identification mode flag OFF setting instruction”
Send to 00. Thereby, base unit 200 changes slave unit identification mode flag 232 from “ON” to “OFF”, and transmits “slave unit identification mode flag change notification” to slave unit 100.

As described above, in the case where the slave unit identification mode flag 232 of the master unit 200 is set to “ON” and the identification mode switching flag 133 of the slave unit 100 is set to “OFF”, the security code matches between the master unit and the slave unit. When the master unit 200
Is set to “OFF”. FIG. 7B is a diagram showing a communication sequence when the security codes do not match between the parent and child.

After determining that both security codes do not match, slave unit 100 transmits “SC mismatch notification” to master unit 200. As a result, base unit 200 transmits a “child unit identification impossible notification” to child unit 100. The slave 100 that has received the “slave identification failure notification” notifies the user of “parent-child mismatch”. As described above, when the “child device identification mode flag” of the parent device 200 is set to “ON” and the identification mode switching flag 133 of the child device 100 is set to “OFF”, and the security code does not match between the parent device and the child device, 20
0 does not change the “slave unit identification mode flag” to “OFF” and transmits a “slave unit unrecognizable notification” to the slave unit 100.

FIGS. 8 (a) and 8 (b) show the case where the slave unit identification mode flag 232 of the master unit 200 and the identification mode switching flag 133 of the slave unit 100 are both "ON". It is a figure which shows the communication sequence at the time of coincidence and when it does not coincide. FIG. 8A is a communication sequence diagram when the security code matches between the parent and child.

After determining that both security codes match, slave unit 100 issues “SC update instruction” to master unit 20.
Send to 0. As a result, since the child device identification mode flag 232 is “ON”, the parent device 200 creates a new security code, transmits it to the child device 100, and
Wait for “SC update notification” from 0. As described above, both the slave unit identification mode flag 232 of the master unit 200 and the identification mode switching flag 133 of the slave unit 100 are “ON”.
In the case of, when the security code matches between the parent and the child, the security code is updated between the parent and the child.

FIG. 8B is a communication sequence diagram when the security codes do not match between the parent and child. Cordless handset 10
0 determines that both security codes do not match, and then transmits a “SC mismatch notification” to the parent device 200. As a result, base unit 200 transmits a “child unit identification impossible notification” to child unit 100. The slave 100 that has received the “slave identification failure notification” notifies the user of “parent-child mismatch”.

As described above, when the slave unit identification mode flag 232 of the master unit 200 and the identification mode switching flag 133 of the slave unit 100 are both "ON", and the security codes do not match between the master unit and the master unit, The slave 200 transmits a “slave identification failure notification” to the slave 100. FIG. 9 (a),
(B) shows a case where the slave unit identification mode flag 232 of the master unit 200 and the identification mode switching flag 133 of the slave unit 100 are both “OFF”, and communication is performed when the security code matches between the master and child and when they do not match. It is a figure showing a sequence.

FIG. 9A is a communication sequence diagram when the security code matches between the parent and child. Slave device 100
After determining that the two security codes match, the master 2 issues a “child device identification mode flag OFF setting instruction”
Send to 00. In response to this, base unit 200 confirms that slave unit identification mode flag 232 is set to “OFF”, and holds the value.

As described above, when the slave unit identification mode flag 232 of the master unit 200 and the identification mode switching flag 133 of the slave unit 100 are both “OFF”, and when the security codes match between the master and the child, The device 200 holds the value “OFF” of the child device identification mode flag 232. FIG.
(b) is a communication sequence diagram when the security code does not match between the parent and child.

After determining that both security codes do not match, slave unit 100 transmits “SC mismatch notification” to master unit 200. As a result, base unit 200 detects that slave unit identification mode flag 232 is “OFF”, creates a new security code and transmits it to slave unit 100, and “SC update notification” from slave unit 100. Wait for.

As described above, when the slave unit identification mode flag 232 of the master unit 200 and the identification mode switching flag 133 of the slave unit 100 are both “OFF”, and when the security codes do not match between the parent and child, Security code updates are performed between the two. In this case, the master unit 20
The operations of the slave unit 100 and the slave unit 100 are the same operations as those of the conventional case where the security code is updated between the master unit and the slave unit.

In the above embodiment, when master device 200 receives the “SC update instruction” from slave device 100, master device 200 sets slave device identification mode flag 232 of its own device to “OFF”.
To “ON” from the main unit 200
May be provided with a separate “child unit identification mode key”, and after performing the operation shown in FIG. 5, the “child unit identification mode key” may be set to “ON”.

[0058]

As described above, according to the present invention, the security information common to the parent and the child is stored in the storage unit, the security information is received from one master, and the stored security information and the received security information are received. A determination unit determines whether or not the information matches the information.If the information does not match, the slave unit of the cordless telephone system updates the security information common to the parent and child. When an exclusion mode for exclusion is set, an exclusion unit for exclusion of updating of security information is provided when the determination unit determines that they do not match.

Thus, the security information stored in the slave unit is compared with the security information received from the master unit to determine whether or not they match, and when the user sets the slave unit to the exclusion mode, Since erroneous updating based on the security information received from the master unit determined not to match does not occur, the combination with the master unit can be prevented.

In addition, when the user sets the exclusion mode by the user, the slave unit includes a notifying means for notifying the master unit, when it is determined by the determination unit that they match, of an instruction to shift to the exclusion mode. . Accordingly, the slave set in the exclusion mode by the user instructs the master whose matching security information is set to also set the mode of the master to the exclusion mode. The same exclusion mode can be set.

Further, the notifying means notifies the master unit of an instruction to cancel the exclusion mode when the exclusion mode is canceled by the user. Accordingly, the child device set to release the exclusion mode by the user instructs the parent device whose security information matches to release the exclusion mode of the parent device.
The exclusion mode can be canceled without operating the master unit, and the same compatibility function as that of the related art can be achieved.

Further, according to the present invention, security information common to a parent and a child is stored in a storage unit, security information is received from one child device, and whether the stored security information matches the received security information is determined. The determination unit determines whether or not the main unit of the cordless telephone system updates the common security information between the parent and child when they do not match, and is set to an exclusion mode that excludes a connection with another child unit. ,
When the determination unit determines that they do not match, the information processing apparatus includes an avoiding unit that avoids updating the security information.

Thus, the security information stored in the master unit is compared with the security information received from the slave unit to determine whether or not they match, so that when the master unit is set to the exclusion mode, Updating of the security information can be avoided between the slave and the slave determined to be different, and the combination with the slave can be prevented. Further, when the master unit receives an instruction to shift to the exclusion mode from the slave unit, the master unit shifts to the exclusion mode.

As a result, the master unit that has received the instruction to shift to the exclusion mode from the slave unit with the same security information can avoid updating the security information with the slave unit that is not set to the exclusion mode. Can be prevented. Further, the master unit cancels the exclusion mode when receiving a cancellation instruction of the exclusion mode from the slave unit.

As a result, the master unit that has received the exclusion mode cancellation instruction from the slave unit whose security information matches can cancel the exclusion mode without operating the master unit. Further, according to the present invention, security information common to a parent and a child is stored in a first storage unit, security information is received from one parent device, and whether the stored security information matches the received security information is determined. Is determined by the first determination unit, and if they do not match, the slave unit that is updated to the common security information between the parent and child, and the common security information between the parent and child are stored in the second storage unit, and A base unit that receives the security information, determines whether the stored security information matches the received security information, and determines whether the stored security information matches the received security information. A cordless telephone system comprising: the slave unit, when the user sets an exclusion mode for eliminating a connection with another master unit, the first determination unit determines that the two do not match. Is provided with an exclusion unit for excluding update of security information, and when the master unit is set to an exclusion mode for exclusion of a connection with another slave unit, when the second determination unit determines that they do not match. Has an avoiding means for avoiding updating of security information.

Thus, the security information stored in the slave unit is compared with the security information of the master unit to determine whether they match, and one or both of the slave unit and the master unit are set to the exclusion mode. In this case, the security information is not updated when it is determined that they do not match, so that it is possible to prevent the occurrence of a parent-child combination in which the security information does not match.

[Brief description of the drawings]

FIG. 1 is a functional block diagram of a slave unit and a master unit in a cordless telephone system according to the present embodiment.

FIG. 2 is a flowchart showing a flow of a process of a control unit of the slave unit.

FIG. 3 is a flowchart illustrating a flow of processing of a control unit of the slave unit.

FIG. 4 is a flowchart illustrating a flow of processing of a control unit of the master unit.

FIG. 5 is a communication sequence diagram in a case where a common security code is initially registered between a parent and a child, and thereafter, the common security code is updated between the parent and the child.

FIG. 6 is a communication sequence diagram in a case where the child device identification mode flag of the parent device is set to “OFF” and the identification mode switching flag of the child device is set to “ON”, and the security codes do not match between the parent device and the child device. .

FIG. 7A shows a case where the slave unit identification mode flag of the master unit is “O”.
FIG. 11 is a communication sequence diagram in a case where the identification code switching flag of the child device is set to “OFF” and the security codes match between the parent and child. (b) is a communication sequence diagram in the case where the child device identification mode flag of the parent device is set to “ON” and the identification mode switching flag of the child device is set to “OFF”, and the security codes do not match between the parent device and the child device. is there.

FIG. 8A shows a communication sequence in a case where both the child device identification mode flag of the parent device and the identification mode switching flag of the child device are set to “ON” and the security codes match between the parent device and the child device. FIG. (b) indicates that both the slave unit identification mode flag of the master unit and the identification mode switching flag of the slave unit are “O”.
FIG. 10 is a communication sequence diagram when the security code does not match between parent and child when set to "N".

FIG. 9A is a communication sequence in the case where both the child device identification mode flag of the parent device and the identification mode switching flag of the child device are set to “OFF”, and the security codes match between the parent device and the child device. FIG. (b) is a communication sequence diagram in the case where the slave unit identification mode flag of the master unit and the identification mode switching flag of the slave unit are both set to “OFF”, and the security codes do not match between the master unit and the slave unit.

[Explanation of symbols]

 Reference Signs List 100 cordless telephone system cordless handset 110 wireless unit 120 voice processing unit 121 microphone 122 speaker 130 storage unit 131 security code 132 SC match flag 133 identification mode switching flag 140 operation unit 141 slave unit registration key 142 slave unit registration release key 150 display unit 160 control unit 200 cordless telephone system master unit 210 wireless unit 220 slave unit detection unit 230 storage unit 231 security code 232 slave unit identification mode flag 240 operation unit 250 control unit

Claims (7)

[Claims] A storage unit configured to store security information common to a parent and a child, receive security information from one parent device,
A cordless telephone system cordless handset that updates the security information common to the parent and child by determining whether the stored security information matches the received security information with a determination unit. When the exclusion mode is set by the user to exclude connection with another master unit, when the determination unit determines that the two do not match, the exclusion unit includes an exclusion unit that excludes updating of security information. Handset of telephone system. 2. The notifying unit, further comprising: when the user sets the exclusion mode, a notification unit for notifying an instruction to shift to the exclusion mode to the parent device when the determination unit determines that the two match. The cordless telephone system according to claim 1, further comprising: 3. The cordless telephone system according to claim 2, wherein the notifying unit notifies the parent device of an instruction to cancel the exclusion mode when the exclusion mode is canceled by a user. Machine. 4. A storage unit for storing common security information between a parent and a child, receiving security information from one child device,
A base unit of a cordless telephone system that determines whether stored security information matches received security information by a determination unit, and updates the security information to common security information between the parent and child when they do not match. When the exclusion mode is set to exclude the connection with the slave unit, when the determination unit determines that they do not match, the avoidance means for avoiding updating of the security information is provided. Machine. 5. The base unit of the cordless telephone system according to claim 4, wherein the base unit shifts to the exclusion mode when receiving an instruction to shift to the exclusion mode from the slave unit. 6. The base unit of the cordless telephone system according to claim 5, wherein the base unit releases the exclusion mode when receiving an exclusion mode release instruction from the slave unit. 7. A system in which common security information is shared between a parent and a child.
The security information stored in the storage unit is received from one parent device, and the first determination unit determines whether the stored security information matches the received security information. A slave unit that updates security information common between the two, a security unit that stores common security information between the parent and child in the second storage unit, receives security information from one slave unit, and stores the stored security information and the received security information. A cordless telephone system comprising: a base unit for determining whether or not the information matches; and a base unit for updating the common security information between the parent and child when the information does not match. When an exclusion mode for excluding connection with another master unit is set, an exclusion unit for excluding update of security information is provided when the first determination unit determines that they do not match. When the master unit is set to an exclusion mode for eliminating a connection with another slave unit, the master unit includes an avoiding unit that avoids updating security information when the second determination unit determines that the two do not match. A cordless telephone system characterized by the following.