JP4014331B2 - Cordless phone system cordless handset, base phone - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a cordless telephone system, and more particularly to a cordless telephone system that enables a call when a common security code is stored between a parent and a child.
[0002]
[Prior art]
For example, when a cordless phone system for North America is placed in a cradle (table for placing the cordless handset) of the cordless phone system, the “security code” received from the parent phone and The “security code” is compared, and if they match, it is determined that the parent device is the parent device of the own device. If they do not match, the child device receives a new “security code” from the parent device and updates the security code of the own device. Specifically, the above update is performed according to the following procedure.
[0003]
(1) The master unit detects that the slave unit has been placed on its own cradle.
(2) The master unit transmits its own security code to the slave unit.
(3) The slave unit must receive the security code received from the master unit and its own security code.
To determine whether they match.
(4) If the slave unit determines that they do not match, it transmits a message to that effect to the master unit.
[0004]
(5) The parent device newly generates a security code and transmits it to the child device.
(6) The slave unit uses its security code received from the master unit to
Update the password.
In many cases, the base unit of the cordless telephone system for North America or the like has a simple configuration that includes a cradle but does not include a numeric keypad or a display device. For this reason, the user performs most necessary operations from the slave unit. Further, the specification is such that only one slave unit can be registered in one master unit (the master unit and the slave unit store a common and unique security code).
[0005]
[Problems to be solved by the invention]
By the way, in a usage environment where a plurality of cordless telephone systems are arranged, if a slave unit is accidentally placed in the cradle of another master unit, it is set as a slave unit of the other master unit. A problem arises in that a genuine child device that had been lost loses the parent device and cannot make a call. This is because in the case of a cordless telephone system for North America or the like, only one slave unit can be registered in one master unit. In this case, it is one solution to make it impossible to update the security code. However, the above cordless telephone system can be used to change the combination of the master unit and the slave unit if necessary. It is necessary to provide a compatible function that enables code update.
[0006]
The present invention has been made in view of the above problems, and when the slave unit is mistakenly placed in a cradle of a master unit that is not the original master unit while realizing the compatibility function, An object of the present invention is to provide a cordless telephone system that prevents a combination with a handset.
[0007]
[Means for Solving the Problems]
In order to achieve the above object, a cordless phone system cordless handset according to the present invention includes:
The security information common between the parent and child is stored in the storage unit, the security information is received from one parent device, and the determination unit determines whether or not the stored security information matches the received security information, A cordless telephone system child machine that is updated to common security information between the parent and the child when they do not match, the accepting means for accepting the setting and release designation of the exclusion mode that excludes connection with another parent machine; and Specify the exclusion mode setting at the reception means. Without operation of the main unit When accepted, the exclusion mode is set, and when designation of canceling the exclusion mode is accepted, when the exclusion mode is changed and the exclusion mode changing means for canceling the exclusion mode, the determination unit determines that they do not match. If there is, an exclusion means for eliminating the update of the security information is provided.
[0008]
The base unit of the cordless telephone system according to the present invention stores security information common to the parent and child in the storage unit, receives the security information from the base unit, and stores the stored security information and the received security information. A cordless telephone system that receives a notification of a judgment result from a slave unit that has determined whether or not they match, and updates the security information to the common security information between the parent and child if they do not match. A handset identification mode flag indicating whether or not to be excluded mode Can be rewritten without operating the main unit When the result of the determination is that they do not match in the notification when the storage unit is stored, the exclusion mode determination unit that reads out the slave unit identification mode flag to determine whether or not the exclusion mode is determined, and the exclusion mode And avoiding means for avoiding the update of the security information.
[0009]
The cordless telephone system according to the present invention stores common security information between the parent and the child in the first storage unit, receives the security information from one parent device, stores the stored security information, the received security information, Is determined by the determination unit. If they do not match, the slave unit that is updated to the same security information between the parent and child and the security information that is shared between the parent and child are stored in the second storage unit, and the slave unit A cordless telephone system comprising a parent device that receives a notification of a determination result from the determination unit and updates the security information to common security information between the parent and the child when they do not match, wherein the child device sets and cancels the exclusion mode. Specify Without operation of the main unit An accepting means for receiving, an exclusion mode changing means for canceling the exclusion mode when setting for exclusion mode is accepted when accepting designation of exclusion mode setting at the accepting means, and others And an exclusion mode that excludes the update of security information when the determination unit determines that they do not match when the exclusion mode is set to exclude the connection with the child device. A slave unit identification mode flag that indicates whether or not it is an exclusion mode that excludes connections with other slave units Can be rewritten without operating the main unit The stored storage means, the exclusion mode determination unit that reads out the slave unit identification mode flag to determine whether it is in the exclusion mode, and the determination result by the determination unit from the slave unit when the exclusion mode is determined When it is determined by the notification that they do not match, an avoidance unit that avoids updating of the security information is provided.
[0010]
DETAILED DESCRIPTION OF THE INVENTION
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 each of a slave unit and a master unit in the cordless telephone system according to the present embodiment.
[0011]
The subunit | mobile_unit 100 is comprised from the radio | wireless part 110, the audio | voice processing part 120, the memory | storage part 130, the operation part 140, the display part 150, and the control part 160.
Radio unit 110 of handset 100 modulates a carrier wave based on a baseband signal to be transmitted during transmission and outputs it from an antenna, and demodulates a high-frequency signal input from the antenna into a baseband signal during reception.
[0012]
The audio processing unit 120 inputs and outputs audio signals via the microphone 121 and the speaker 122 and performs amplification and the like.
The storage unit 130 stores a security code 131, a security code match flag (hereinafter referred to as “SC match flag”) 132, and an identification mode switching flag 133. Here, the “security code” refers to a code for enabling a call only through a parent device 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, the control unit 160 sets “ON (= 1)” when the two match, and “OFF (= 0)” when they do not match.
[0013]
Furthermore, the “identification mode switching flag” is used to maintain a combination of the child device 100 and the parent device having a common security code, or every time the child device 100 is placed on the cradle of the parent device. The flag is set when the user selects whether the combination is updated. Specifically, in the former case, when the slave unit registration key 141 of the operation unit 140 is pressed, the control unit 160 sets “ON”. In the latter case, the slave unit registration of the operation unit 140 is canceled. When the key 142 is pressed, the controller 160 sets “OFF”.
[0014]
The operation unit 140 includes 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 key includes a slave unit registration key 141 and a slave unit registration cancellation 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 the user under the control of the control unit 160.
[0015]
The control unit 160 controls each unit of the child device 100 and is realized by a microcomputer or the like. The control unit 160 stores a control program therein. In accordance with this control program, the control unit 160 controls a security code update process that is executed when the child device 100 is placed on the cradle of the parent device 200. In this case, control unit 160 controls radio unit 110 to transmit various instructions and notifications corresponding to the values of SC match flag 132 and identification mode switching flag 133 to base unit 200. Instructions transmitted from the slave unit 100 to the master unit 200 include an “SC update instruction” and a “slave unit identification mode flag OFF setting instruction”. The notifications transmitted from the slave unit 100 to the master unit 200 include “SC mismatch notification” and “SC update notification”. The control unit 160 includes a counter (not shown).
[0016]
The “SC update instruction” is an instruction for requesting the parent device to newly generate a security code and transmit it to the child device. This instruction is transmitted to the parent machine when both the SC match flag 132 and the identification mode switching flag 133 are “ON”.
“Slave unit identification mode flag OFF setting instruction” is an instruction for requesting the master unit to set the slave unit identification mode flag 232 to “OFF”. This instruction is transmitted to the parent machine when the SC match flag 132 is “ON” and the identification mode switching flag 133 is “OFF”.
[0017]
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 issued when it is determined that the security code transmitted from the parent device and the security code of the child device do not match immediately after the child device is placed on the cradle of the parent device (that is, the SC match flag 132 is “ When set to “OFF”), the master unit is always notified.
[0018]
The “SC update notification” is a notification for notifying the parent device that the security code has been updated in the child device. In this notification, when the SC match flag 132 and the identification mode switching flag 133 are both “OFF” or both “ON”, the security code 131 of the storage unit 130 is updated with the new security code notified from the parent device. Later, it is sent to the base unit.
[0019]
Next, the flow of processing in the control unit 160 executed based on the control program will be described with reference to the flowcharts of FIGS.
First, the control unit 160 waits until the user turns on the power (S201), and sets “0” in the counter (S202). Further, the control unit 160 determines whether or not the identification mode switching flag 133 is “OFF” (S203).
[0020]
Next, when the identification mode switching flag 133 is “OFF”, the control unit 160 waits for reception of the security code transmitted from the parent device 200 (S204), and loads the security code 131 of the own device (S205). ) Compare both security codes (S206).
As a result of the comparison, if the two security codes do not match, the control unit 160 determines whether or not the counter is “1” (S207). If it is not “1”, the SC match flag 132 is set to “OFF”. Is set (S208), and the value of the SC match flag 132 is transmitted to the parent device 200 (S209). Thereafter, the control unit 160 sets “1” in 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 parent device 200 (S211), the counter is cleared to “0” (S212), and “SC update notification” is sent to the parent device. (S213).
[0021]
On the other hand, if the two security codes match, the control unit 160 determines whether any one of the operation key of the slave unit registration key 141 or the slave unit registration release key 142 is pressed from the operation unit 140 (S214). When pressed, the value of the identification mode switching flag 133 is set in accordance with the slave unit registration key 141 or the slave unit registration release key 142 (S215).
[0022]
Thereafter, control unit 160 waits for reception of a security code transmitted from base unit 200 (S216), loads its own security code (S217), and determines the value of identification mode switching flag 133 (S218). Both security codes are compared (S219, S222). When the identification mode switching flag 133 is “ON” and both security codes match, the control unit 160 sets the SC match flag 132 to “ON” (S225) and “SC” The wireless unit 110 is controlled to transmit “update instruction” to the parent device 200 (S226). Further, when the identification mode switching flag 133 is “OFF” and both security codes match, the control unit 160 sets the SC match flag 132 to “ON” (S220). The wireless unit 110 is controlled so as to transmit “Slave unit identification mode flag OFF setting instruction” to the base unit 200 (S221). When both security codes do not match regardless of the value of the identification mode switching flag 133, the control unit 160 sets the SC match flag 132 to “OFF” (S223) and sets “SC mismatch notification” to the master unit. The wireless unit 110 is controlled to transmit to 200 (S224).
[0023]
Further, control unit 160 determines whether or not a security code has been received from base unit 200 (S227), and determines whether or not the value of SC match flag 132 is “ON” when received (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 parent device 200. The wireless unit 110 is controlled (S234). On the other hand, when the value of the SC match flag 132 is “OFF” (S231), the control unit 160 ignores the received security code (S232).
[0024]
In addition, when the control unit 160 receives a “slave unit identification failure notification” from the base unit 200 (S229), the control unit 160 performs voice processing so as to perform a “parent-child mismatch notification” (for example, sounding a buzzer). The unit 120 and the like are controlled (S230).
Thereafter, the control unit 160 waits for an operation from the user (S235) and repeats the above processing (S214 to S235). In this case, the “operation from 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 or the child device registration cancellation key 142, an ON / OFF operation of the power key, and the like. included.
[0025]
As described above, the slave unit 100 of the present embodiment is newly provided with the slave unit registration key 141 and the slave unit registration release key 142, and by storing the result of these key operations in the identification mode switching flag 133, The user can select whether to allow a call only through a parent device having a common security code or to update the combination every time the child device 100 is placed on the cradle of the parent device. it can.
[0026]
The base unit 200 includes a wireless unit 210, a slave unit detection unit 220, a storage unit 230, an operation unit 240, and a control unit 250.
Since the radio unit 210 of the parent device 200 has the same configuration as the radio unit 110 of the child device 100, description thereof is omitted.
The slave unit detection unit 220 includes a cradle for placing the slave unit. When the slave unit is placed on the cradle, the slave unit detection unit 220 notifies the control unit 250 of the fact.
[0027]
Storage unit 230 stores security code 231 and handset identification mode flag 232. Here, the “slave unit identification mode flag” means whether the combination of the slave unit 100 and the master unit having a common security code 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 parent device. Specifically, in the former case, when the “SC update instruction” is received from the slave unit 100, the control unit 250 sets “ON”. In the latter case, the slave unit 100 sets the “slave unit identification mode”. When the “flag OFF setting instruction” is received, the control unit 250 sets “OFF”.
[0028]
The operation unit 240 includes a power key, a PAGE key (a key for searching for a child device), and the like, receives 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 stores a control program therein. In accordance with this control program, the control unit 250 controls security code update processing that is executed when the child device 100 is placed on the cradle of the own device. In this case, the control unit 250 controls processing related to the update of the security code that is executed when the child device 100 is placed on the cradle of the own device. In this case, the control unit 250 controls the wireless unit 210 to transmit various notifications to the child device 100 in accordance with the contents of the child device identification mode flag 232 or the instruction or notification received from the child device 100. . The notifications transmitted from the parent device 200 to the child device 100 include “security code”, “child device identification mode flag change notification”, and “child device identification impossibility notification”.
[0029]
There are two types of “security code” notified from the parent device 200 to the child device 100. One is a “security code” that is 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 the case where the handset identification mode flag 232 is set to “OFF”, when “SC mismatch notification” or “SC update instruction” is received from the handset 100, and the handset identification. This is a “security code” newly created by the control unit 250 and transmitted to the child device 100 when the “SC update instruction” is received when the mode flag 232 is “ON”.
[0030]
“Slave unit identification mode flag change notification” is a case where the slave unit identification mode flag 232 is set to “ON” and a “slave unit identification mode flag OFF setting instruction” is received from the slave unit 100. This notification is transmitted to the slave unit 100 after the slave unit identification mode flag 232 is changed to “OFF”.
The “slave unit identification impossibility notification” is transmitted to the slave unit 100 when the “slave unit identification mode flag” is received from the slave unit 100 when the slave unit identification mode flag 232 is set to “ON”. Notification.
[0031]
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.
First, the controller 250 waits for the user to turn on the power (S401), and determines whether or not the handset identification mode flag 232 is set to “OFF” (S402). When “OFF” is set, the control unit 250 waits for a notification from the child device detection unit 220 that the child device 100 is placed on the cradle (S403), and then receives the security code 231 of the parent device 200. The wireless unit 210 is controlled so as to be loaded (S404) and transmitted to the child device 100 (S405). Thereafter, the control unit 250 waits for various data transmitted from the child device 100 (S406).
[0032]
Next, when the slave unit identification mode flag 232 is “ON” and the control unit 250 receives an “SC mismatch notification” from the slave unit 100, the control unit 250 notifies the slave unit 100 of a “slave unit identification notifying notification”. The wireless unit 210 is controlled to transmit (S413). In addition, when receiving “Slave unit identification mode flag OFF setting instruction” from the slave unit 100, the control unit 250 changes the slave unit identification mode flag 232 to “OFF” (S410), The wireless unit 210 is controlled to transmit the “machine identification mode flag change notification” (S411). Furthermore, when receiving the “SC update instruction” from the slave unit 100, the control unit 250 creates a new security code (S415), and causes the radio unit 210 to transmit the created security code to the slave unit 100. Control is performed (S416). Thereafter, the control unit 250 determines whether or not the “SC update notification” is received from the child device 100 (S417), and updates the security code of the parent device 200 when received (S418).
[0033]
On the other hand, the control unit 250 determines whether or not the handset identification mode flag 232 is “OFF” (S407), and when “OFF” is received, when the “SC mismatch notification” is received from the handset 100 (S414). Then, a new security code is created (S415), and the wireless unit 210 is controlled to transmit the created security code to the handset 100 (S416). Thereafter, the control unit 250 determines whether or not the “SC update notification” has been received from the slave unit 100 (S417), and if received, updates the security code of the master unit 200 (S418).
[0034]
In addition, the control unit 250 sets the slave unit identification mode flag 232 to “ OFF When the “SC update instruction” is received from the slave unit 100, the slave unit identification mode flag 232 is changed to “ON” (S420), and the same processing as described 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 from the user” includes ON / OFF operation of the power key of the parent device 200.
[0035]
As described above, the parent device 200 according to the present embodiment is newly provided with the child device recognition mode flag, so that the user can communicate only with the child device having the common security code, or the child device can be connected to the cradle. It is possible to select whether to update the combination every time it is placed on the computer according to an instruction from the slave unit.
Next, processing operations when the control unit 160 of the child device 100 and the control unit 250 of the parent device 200 update the security code will be described with reference to the communication sequence diagrams of FIGS. Note that the “dashed arrows” in these drawings indicate that the child device 100 is placed on the cradle of the parent device 200.
[0036]
FIG. 5 shows a case where the values of 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 set to “OFF” as an initial state (for example, at the time of product purchase). FIG. 5 is a communication sequence diagram for initially registering a common security code between a parent and a child. Furthermore, FIG. 5 also shows a communication sequence in the case where both security codes are updated in accordance with an instruction from the handset 100 side.
[0037]
First, parent device 200 detects that child device 100 is placed in a cradle. As a result, the parent device 200 loads the security code 231 of the own device and transmits it to the child device 100.
Next, when receiving the security code from the parent device 200, the child device 100 loads the security code of the own device and determines whether or not it matches the received security code. Further, slave unit 100 transmits “SC mismatch notification” (or “SC match notification”) to master unit 200 as the determination result.
[0038]
As a result, when the slave unit identification mode flag 232 is “OFF”, the master unit 200 creates a new security code and transmits it to the slave unit 100 when receiving a “SC mismatch notification” from the slave unit 100. To do.
Slave device 100 updates its own security code with the security code received from master device 200, and transmits “SC update notification” to master device 200.
[0039]
Thereafter, master device 200 waits for an “SC update notification” transmitted from slave device 100.
As described above, when 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 set to “OFF”, a common security code is registered between the parent and child. .
[0040]
Subsequently, handset 100 receives a press of handset registration key 141 from the user. Thereby, the identification mode switching flag 133 of the subunit | mobile_unit 100 is changed to "ON". Thereafter, handset 100 is placed on the cradle of base unit 200 by the user.
Next, when the parent device 200 detects that the child device 100 is placed on the cradle of the own device, the parent device 200 transmits the security code of the own device to the child device 100.
[0041]
Thereby, handset 100 loads its own security code and compares both security codes as described above. If both security codes match, slave unit 100 transmits an “SC update instruction” to master unit 200.
When receiving the “SC update instruction” from the child device 100, the parent device 200 changes the child device identification mode flag 232 from “OFF” to “ON”, newly creates a security code, and transmits it to the child device 100. . Thereafter, as described above, parent device 200 waits for an “SC update notification” transmitted from child device 100 after the security code is updated.
[0042]
As described above, when the “child device identification mode flag” of the parent device 200 is set to “OFF”, 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 is updated.
FIG. 6 shows communication when the child machine identification mode flag 232 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 do not match between the parent and child. It is a sequence diagram. In FIG. 6, the description of the sequence common to FIG. 5 is omitted.
[0043]
Slave device 100 compares both security codes, and transmits an “SC mismatch notification” to master device 200. Since the child device identification mode flag 232 is “OFF”, the parent device 200 newly creates a security code and transmits it to the child device 100, and waits for an “SC update notification” from the child device 100.
However, since the security code first received from the master device 200 does not match the security code of the slave device 100, the slave device 100 ignores the security code transmitted from the master device 200 again without being updated. .
[0044]
As described above, when the slave unit identification mode flag 232 of the master unit 200 is set to “OFF” and the discrimination mode switching flag 133 of the slave unit 100 is set to “ON”, the master unit 200 first starts. When the transmitted security code and the security code stored in the handset 100 do not match, the update of the security code between the parent and the child is excluded.
[0045]
In the following, in FIG. 7 to FIG. 9, description of parts common to the sequence of FIG. 5 is omitted, and different points are mainly described.
FIGS. 7A and 7B show the case where the child machine 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”. It is a figure which shows a communication sequence when a code | cord | chord matches and when it does not correspond.
[0046]
FIG. 7A is a communication sequence diagram when the security codes match between the parent and the child.
After determining that both security codes match, the child device 100 transmits a “child device identification mode flag OFF setting instruction” to the parent device 200. As a result, parent device 200 changes child device identification mode flag 232 from “ON” to “OFF”, and transmits “child device identification mode flag change notification” to child device 100.
[0047]
As described above, when the child machine 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”, the security codes match between the parent and child. The slave unit identification mode flag 232 of 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 the child.
[0048]
After determining that the two security codes do not match, the child device 100 transmits an “SC mismatch notification” to the parent device 200. As a result, parent device 200 transmits a “child device identification impossibility notification” to child device 100. The child device 100 that has received this “notice of child device identification” 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”, the identification mode switching flag 133 of the child device 100 is set to “OFF”, and the security codes do not match between the parent and child, 200 does not change the “slave unit identification mode flag” to “OFF”, but transmits a “slave unit identification impossible notification” to the slave unit 100.
[0049]
FIGS. 8A and 8B show the case where 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 “ON”, and the security codes match between the parent and child. It is a figure which shows a communication sequence when it does not correspond.
FIG. 8A is a communication sequence diagram when the security codes match between the parent and the child.
[0050]
After determining that both security codes match each other, slave unit 100 transmits an “SC update instruction” to master unit 200. Accordingly, since the child device identification mode flag 232 is “ON”, the parent device 200 newly creates a security code and transmits it to the child device 100, and waits for an “SC update notification” from the child device 100.
As described above, when 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 “ON” and the security codes match between the parent and child, the security between the parent and child is the same. A code update is performed.
[0051]
FIG. 8B is a communication sequence diagram when the security codes do not match between the parent and the child.
After determining that the two security codes do not match, the child device 100 transmits an “SC mismatch notification” to the parent device 200. As a result, parent device 200 transmits a “child device identification impossibility notification” to child device 100. The child device 100 that has received this “notice of child device identification” notifies the user of “parent-child mismatch”.
[0052]
As described above, when 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 “ON” and the security codes do not match between the parent and child, the parent device 200 “Slave unit identification impossible notification” is transmitted to the slave unit 100.
FIGS. 9A and 9B show the case where 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”, and the security codes match between the parent and child. It is a figure which shows a communication sequence when it does not correspond.
[0053]
FIG. 9A is a communication sequence diagram when the security codes match between the parent and the child.
After determining that both security codes match, the child device 100 transmits a “child device identification mode flag OFF setting instruction” to the parent device 200. On the other hand, the parent device 200 confirms that the child device identification mode flag 232 is set to “OFF” and holds the value.
[0054]
As described above, when 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”, and the security codes match between the parent and child, the parent device 200 The value “OFF” of the slave unit identification mode flag 232 is held.
FIG. 9B is a communication sequence diagram when the security codes do not match between the parent and child.
[0055]
After determining that the two security codes do not match, the child device 100 transmits an “SC mismatch notification” to the parent device 200. As a result, the master device 200 detects that the slave device identification mode flag 232 is “OFF”, creates a new security code, transmits the security code to the slave device 100, and “SC update notification” from the slave device 100. Await.
[0056]
As described above, when 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” and the security codes do not match between the parent and child, the security between the parent and child is determined. A code update is performed. Note that the operations of the parent device 200 and the child device 100 in this case are equivalent to the operations performed when the security codes in the conventional parent device and the child device are updated.
[0057]
In the above-described embodiment, when the parent device 200 receives the “SC update instruction” from the child device 100, the child device identification mode flag 232 of the own device is changed from “OFF” to “ON”. However, the operation unit 240 of the parent device 200 is additionally provided with a “child device identification mode key”, and after the operation shown in FIG. 5 is executed, this “child device identification mode key” is set to “ON”. You may comprise as follows.
[0058]
【The invention's effect】
As described above, the present invention stores common security information between the parent and child in the storage unit, receives the security information from one parent device, and the stored security information matches the received security information. If the determination unit determines whether or not they match, the cordless telephone system is updated to common security information between the parent and the child, and the setting of the exclusion mode that excludes the connection with the other parent device and Specify release Without operation of the main unit An accepting means for accepting, an exclusion mode changing means for setting the exclusion mode when the designation of the exclusion mode is accepted by the accepting means, and an exclusion mode changing means for releasing the exclusion mode when the designation of canceling the exclusion mode is accepted; When it is set, an exclusion unit that excludes the update of the security information is provided when the determination unit determines that they do not match.
[0059]
As a result, the security information stored in the slave unit and the security information received from the master unit are compared to determine whether or not they match. If the slave unit is set to the exclusion mode by the user, they do not match. Since the erroneous update due to the security information received from the parent device determined to be excluded, the combination with this parent device can be prevented.
[0060]
In addition, when the user sets the exclusion mode by the user, the slave unit includes notification means for notifying the parent device in the case where it is determined by the determination unit that they match, an instruction to shift to the exclusion mode.
As a result, the child device set to the exclusion mode by the user instructs the parent device having the same security information to set the parent device mode to the exclusion mode. The same exclusion mode can be set.
[0061]
Further, the notifying means notifies the parent device of an instruction to cancel the exclusion mode when the exclusion mode is canceled by the user.
As a result, the child device set to release the exclusion mode by the user instructs the parent device having the same security information to release the exclusion mode of the parent device, and operates the parent device. Therefore, the exclusion mode can be canceled without any change, and the compatibility function similar to the conventional one can be achieved.
[0062]
The present invention also stores security information common to the parent and child in the storage unit, receives the security information from the parent device, and determines whether the stored security information matches the received security information. Whether or not it is in the exclusion mode that excludes the connection with other slave units, which is the master unit of the cordless telephone system that receives the notification of the determination result from the slave unit and updates the security information to the common security information between the parent and child when they do not match Indicates the handset identification mode flag Can be rewritten without operating the main unit When the result of the determination is that they do not match in the notification when the storage unit is stored, the exclusion mode determination unit that reads out the slave unit identification mode flag to determine whether or not the exclusion mode is determined, and the exclusion mode And avoiding means for avoiding the update of the security information.
[0063]
As a result, the security information stored in the parent device and the security information received from the child device are compared to determine whether or not they match. It is possible to avoid updating the security information between the determined slave unit and prevent the combination with the slave unit.
In addition, the master unit shifts to the exclusion mode when receiving an instruction to shift to the exclusion mode from the slave unit.
[0064]
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 releases the exclusion mode when receiving an instruction to cancel the exclusion mode from the slave unit.
[0065]
As a result, the parent device that has received the instruction to cancel the exclusion mode from the child device having the same security information can cancel the exclusion mode without operating the parent device.
Further, according to the present invention, security information common to the parent and the child is stored in the first storage unit, the security information is received from one parent device, and whether or not the stored security information matches the received security information. The determination unit determines whether the security information is the same as the security information shared between the parent and the child and the security information common between the parent and the child is stored in the second storage unit. A cordless telephone system comprising a parent device that receives a notification of a determination result and updates the security information to common security information between the parent and child when they do not match, wherein the child device designates exclusion mode setting and cancellation Without operation of the main unit An accepting means for receiving, an exclusion mode changing means for canceling the exclusion mode when setting for exclusion mode is accepted when accepting designation of exclusion mode setting at the accepting means, and others And an exclusion mode that excludes the update of security information when the determination unit determines that they do not match when the exclusion mode is set to exclude the connection with the child device. A slave unit identification mode flag that indicates whether or not it is an exclusion mode that excludes connections with other slave units Can be rewritten without operating the main unit The stored storage means, the exclusion mode determination unit that reads out the slave unit identification mode flag to determine whether it is in the exclusion mode, and the determination result by the determination unit from the slave unit when the exclusion mode is determined When it is determined by the notification that they do not match, an avoidance unit that avoids updating of the security information is provided.
[0066]
In this way, the security information stored in the slave unit and the security information of the master unit are compared to determine whether they match, and either or both of the slave unit and the master unit are set to the exclusion mode When it is determined that they do not match, the security information is not updated, so that it is possible to prevent a parent-child combination that does not match the security information from occurring.
[Brief description of the drawings]
FIG. 1 is a functional block diagram of each of a child device and a parent device in a cordless telephone system according to the present embodiment.
FIG. 2 is a flowchart showing a flow of processing of a control unit of the slave unit.
FIG. 3 is a flowchart showing a processing flow of a control unit of the slave unit.
FIG. 4 is a flowchart showing a process flow of a control unit of the parent device.
FIG. 5 is a communication sequence diagram in the case of initially registering a common security code between a parent and a child and then updating the common security code between the parent and child.
FIG. 6 is a communication sequence diagram when the security code does not match between the parent and child when the slave unit identification mode flag of the master unit is set to “OFF” and the discrimination mode switching flag of the slave unit is set to “ON”. .
FIG. 7 (a) shows a case where the child machine identification mode flag of the parent machine is set to “ON” and the identification mode switching flag of the child machine is set to “OFF”, and the security codes match between the parent and child. It is a communication sequence diagram.
(b) is a communication sequence diagram when the slave unit identification mode flag of the parent unit is set to “ON” and the identification mode switching flag of the slave unit is set to “OFF”, and the security codes do not match between the parent and child. is there.
FIG. 8A is a communication sequence in the case where both the slave unit identification mode flag of the master unit and the discrimination mode switching flag of the slave unit are set to “ON” and the security codes match between the master and the slave. FIG.
(b) is a communication sequence diagram in the case where the slave unit identification mode flag and the slave unit identification mode switching flag of the master unit are both set to “ON”, and the security codes do not match between the master and the slave.
FIG. 9A is a communication sequence in the case where both the slave unit identification mode flag of the master unit and the discrimination mode switching flag of the slave unit are set to “OFF”, and the security codes match between the master and the slave. FIG.
(b) is a communication sequence diagram in the case where both the slave unit identification mode flag of the master unit and the discrimination mode switching flag of the slave unit are set to “OFF”, and the security codes do not match between the parent and child.
[Explanation of symbols]
100 cordless phone system handset
110 Radio unit
120 Audio 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 Remote unit registration key
142 Remote registration release key
150 display
160 Control unit
200 Master phone of cordless telephone system
210 Radio unit
220 Slave unit detector
230 storage unit
231 Security code
232 Slave unit identification mode flag
240 operation unit
250 Control unit

Claims (7)

The security information common between the parent and child is stored in the storage unit, the security information is received from one parent device, and the determination unit determines whether or not the stored security information matches the received security information, If it does not match, the cordless phone system is updated to the same security information between the parent and child,
An accepting means for accepting the setting of the exclusion mode that excludes connection with another parent device and the designation of cancellation without the operation of the parent device;
An exclusion mode changing means for releasing the exclusion mode when setting the exclusion mode when receiving designation of the exclusion mode setting by the accepting means, and accepting the designation of releasing the exclusion mode;
A cordless telephone system child machine comprising: an exclusion unit configured to exclude an update of security information when the determination unit determines that they do not match when the exclusion mode is set. The slave unit is further
2. The notification device according to claim 1, further comprising: a notification unit configured to notify an instruction to shift to the exclusion mode to the master unit when the determination unit determines that they match when the exclusion mode is set by the user. Cordless phone system. The notification means includes
3. The cordless telephone system slave unit according to claim 2, wherein when the exclusion mode is canceled by the user, a command to cancel the exclusion mode is notified to the base unit. Security information that is common between the parent and child is stored in the storage unit, the security information is received from the parent device, and the determination result is received from the child device that determines whether the stored security information matches the received security information. A cordless telephone system that receives notifications and updates the security information to the same for both parents and children when they do not match.
Storage means for storing a slave unit identification mode flag indicating whether or not the exclusion mode for eliminating connection with other slave units is rewritable without operation of the master unit;
An exclusion mode determination unit that reads out the handset identification mode flag and determines whether or not the exclusion mode is set;
A base unit of a cordless telephone system, comprising: an avoiding means for avoiding an update of security information when the result of determination that the notification does not match when it is determined as the exclusion mode. The base unit is
5. The base unit of the cordless telephone system according to claim 4, wherein when the instruction for shifting to the exclusion mode is received from the slave unit, the transition to the exclusion mode is performed. The base unit is
6. The base unit for a cordless telephone system according to claim 5, wherein when the instruction for canceling the exclusion mode is received from the slave unit, the exclusion mode is canceled. Security information common between the parent and child is stored in the first storage unit, the security information is received from one parent device, and the determination unit determines whether or not the stored security information matches the received security information If there is no match, the slave unit that is updated to the same security information between the parent and child,
Security information common between the parent and child is stored in the second storage unit, the determination result from the determination unit is notified from the child device, and if it does not match, the cordless comprising the parent device that is updated to the common security information between the parent and child A telephone system,
The slave is
An accepting means for accepting the setting of the exclusion mode that excludes connection with another parent device and the designation of cancellation without the operation of the parent device;
An exclusion mode changing means for setting the exclusion mode when accepting the setting of the exclusion mode by the accepting means, and releasing the exclusion mode when the designation of releasing the exclusion mode is accepted;
When the exclusion mode is set, when it is determined that the determination unit does not match, an exclusion unit that excludes the update of the security information is provided,
The base unit is
Storage means for storing a slave unit identification mode flag indicating whether or not the exclusion mode for eliminating connection with other slave units is rewritable without operation of the master unit;
An exclusion mode determination unit that reads out the handset identification mode flag and determines whether or not the exclusion mode is set;
A cordless telephone system comprising: an avoiding means for avoiding an update of security information when it is determined that there is no match in notification of a determination result by the determination unit from a slave when it is determined as an exclusion mode .

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