JP3620308B2 - Cordless telephone equipment - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention is a link condition necessary for linking a master unit and a slave unit to perform cordless communication, and the slave unit registration information of the link condition on the master unit side disappears, causing a link failure with the slave unit side. In this case, the cordless telephone apparatus can recover the slave unit registration information on the master unit side using the individual slave unit registration information on the link condition on the slave unit side.
[0002]
[Prior art]
2. Description of the Related Art Conventionally, a cordless telephone apparatus compatible with a plurality of slave units is usually equipped with a rewritable ROM such as an EEPROM on the master unit side. Since the slave unit registration information of a plurality of slave units is stored in this rewritable ROM, the slave unit registration information on the master unit side disappears unless the user intentionally deletes the slave unit registration information. There is nothing.
[0003]
In general, a cordless telephone device cannot perform cordless communication unless the master unit and the slave unit are linked, but it is possible to perform cordless communication by linking the master unit and the slave unit. The slave unit registration information and the slave unit side individual slave unit registration information. That is, the link condition on the parent device side for linking the parent device and the child device is the child device registration information, and the link condition on the child device side is the individual child device registration information. As described above, as long as the slave unit registration information, which is the link condition on the master unit side, is stored in the rewritable ROM, the slave unit registration information on the master unit side will not disappear. Due to this trouble, there will be no link failure with the handset.
[0004]
However, in order to reduce the product cost of the base unit, a volatile memory such as DRAM used in other departments of the base unit is borrowed without using a rewritable ROM on the base unit. Machine registration information may be stored. As described above, when the slave unit registration information is stored in the volatile memory, the storage of the slave unit registration information is maintained by always applying a voltage higher than the memory holding voltage to the memory. .
[0005]
[Problems to be solved by the invention]
However, in a conventional cordless telephone device compatible with multiple slave units in which the master unit registration information is stored in the volatile memory as described above, power supply from an external power source is interrupted when a power failure occurs. Therefore, the content stored in the memory is lost because it is a volatile memory. Therefore, in the event of a power failure, a voltage is applied to the memory from the capacitor in the base unit, and for a while, the memory contents are retained. However, since the amount of electricity stored in the capacitor is limited, the amount of electricity stored in the capacitor in the parent device gradually decreases as voltage is continuously applied to the memory. Since this memory is volatile, if the voltage applied from the capacitor to the memory falls below the memory holding voltage, the slave unit registration information stored in the memory will disappear, causing trouble in the link conditions on the parent unit side. . Then, after recovering from a power failure, the master unit will recover the link to the slave unit unless a troublesome registration operation is required to re-enter all the data of the slave units used to restore the lost slave unit registration information. I had a problem that I couldn't.
[0006]
The present invention solves the above problems, and even if the slave unit registration information on the master unit side disappears and a link failure occurs with the slave unit side, the individual slave unit registration information on the slave unit side is used to It is an object of the present invention to provide a cordless telephone device that can restore the handset registration information.
[0007]
[Means for Solving the Problems]
In order to solve this problem, the present invention relates to a cordless communication unit that performs transmission and reception of audio signals through a line and performs cordless communication with a child device, and a child device that manages child device registration information that is a link condition on the parent device side. A child having a parent device having a registration information management unit, a cordless communication unit that performs cordless communication with the parent device, and an individual child device registration information management unit that manages individual child device registration information that is a link condition on the child device side Cordless telephone device equipped with a handset, when the handset is installed in the base unit, the handset registration information management unit of the base unit transmits the handset registration information to the handset, and the handset receives the handset registration If self is not registered in the information, the individual slave unit registration information management unit sends the individual slave unit registration information to the master unit side, and the slave unit registration information management unit is the child unit that has received the individual slave unit registration information. The device registration information is updated to register the installed slave unit. It is intended.
[0008]
According to the present invention, even if the slave unit registration information on the master unit side disappears and a link failure occurs with the slave unit side, the slave unit registration information on the master unit side using the individual slave unit registration information on the slave unit side Can be provided.
[0009]
DETAILED DESCRIPTION OF THE INVENTION
According to the first aspect of the present invention, a voice signal is transmitted and received through a line, and a cordless communication unit that performs cordless communication with a slave unit, and a slave unit that manages slave unit registration information that is a link condition on the master unit side A master unit having a master unit registration information management unit, a cordless communication unit that performs cordless communication with the master unit, and an individual slave unit registration information management unit that manages individual slave unit registration information that is a link condition on the slave unit side A cordless telephone device equipped with a slave unit. When the slave unit is installed in the master unit, the slave unit registration information management unit of the master unit transmits the slave unit registration information to the slave unit, and the slave unit receives the slave unit If the self-registration is not registered in the registration information, the individual slave unit registration information management unit sends the individual slave unit registration information to the master unit side, and the master unit that has received the individual slave unit registration information is It is configured to update the slave unit registration information and register the slave unit installed. Even if the slave unit registration information stored on the master unit disappears due to a power failure and a link failure occurs on the slave unit side, if the individual slave unit registration information stored on the slave unit is used, it will be used. It is possible to restore individual child device registration information from the child device to the parent device by restoring the child device registration information on the parent device side and restore the link with the child device side by placing the old child device on the parent device it can.
[0010]
Therefore, since the troublesome registration operation of re-entering all the data of the slave units that were used on the master unit side can be omitted, the slave unit registration information lost due to a power failure can be restored quickly and reliably. Have.
[0011]
The invention described in claim 2 of the present invention is configured such that in the invention described in claim 1, the initial value of the slave unit registration information of the master unit is set to the registration of the first slave unit, Even if the slave unit registration information stored on the machine side disappears due to a power failure and a link failure occurs with the slave unit side, the initial value data is automatically loaded when the power failure is restored. The registration information for the first slave unit is restored, and the link with the slave unit is partially recovered so that only the first slave unit can be used.
[0012]
For this reason, it is sufficient to restore the slave unit registration information on the master unit side to the second and subsequent slave units, so that the slave unit registration information on the master unit lost due to a power failure can be restored more quickly. In addition, when only the first slave unit is used, there is an effect that the recovery operation of the slave unit registration information on the master unit side is virtually unnecessary.
[0013]
Embodiments of the present invention are described below.
(Embodiment 1)
The outline of one embodiment of the present invention is that the parent device and the child device must be linked in advance in order for the parent device and the child device to perform cordless communication. To save the slave unit registration information with a simple operation even if the slave unit registration information, which is the link condition of the master unit stored in the memory, disappears and a link failure occurs with the slave unit If a slave unit that stores individual slave unit registration information that is a link condition on the slave unit but cannot communicate with the master unit due to a link failure with the master unit is installed in the master unit, On the side, the individual slave unit registration information management unit operates and sends the individual slave unit registration information of the slave units to the master unit side. On the master unit side, the slave unit registration information management unit operates and only the number of slave units installed By automatically restoring the slave unit registration information to the master unit memory automatically, the slave unit installed in the master unit is automatically Is that was devised to recover the master unit and the link.
[0014]
Therefore, there is no need for the troublesome operation of re-registering the slave unit registration information in the memory by operating the master unit to restore the link condition of the master unit, and it is easy to transfer the slave units to be used one after another. It is possible to automatically restore all the slave unit registration information of the master unit that has been lost by simple operation to the memory.
[0015]
Details of one embodiment of the present invention will be described below with reference to FIGS. FIG. 1 is a block diagram showing the structure of a cordless telephone device according to an embodiment of the present invention, and FIG. 2 is a schematic diagram showing a transition of power supply in a base unit of the cordless telephone device according to an embodiment of the present invention. is there. FIG. 3 is a graph showing the amount of electricity stored in the base unit of the cordless telephone apparatus according to the embodiment of the present invention, and FIG. 4 shows the transition of power supply in the handset of the cordless telephone apparatus according to the embodiment of the present invention. It is a schematic diagram which shows. 5 to 6 are schematic diagrams showing the contents of the slave unit registration information stored in the master unit of the cordless telephone device according to the embodiment of the present invention. FIG. 7 is a cordless diagram according to the embodiment of the present invention. It is explanatory drawing which shows the communication between the main | base station of a telephone apparatus and a subunit | mobile_unit. FIG. 8 is a schematic diagram showing the contents of handset registration information stored in the base unit of the cordless telephone apparatus according to the embodiment of the present invention, and FIG. 9 is a diagram of the cordless telephone apparatus according to the embodiment of the present invention. It is a schematic diagram which shows loading of slave unit registration information in the master unit. FIG. 10 is an explanatory diagram showing communication between the master unit and the slave unit of the cordless telephone apparatus according to the embodiment of the present invention, and FIG. 11 shows the master unit of the cordless telephone apparatus according to the embodiment of the present invention. It is a schematic diagram which shows the content of the subunit | mobile_unit registration information memorize | stored. FIG. 12 is an explanatory diagram showing communication between the parent device and the child device of the cordless telephone apparatus according to the embodiment of the present invention.
[0016]
First, general functions of the cordless telephone device will be described.
In FIG. 1, the cordless telephone apparatus is composed of a master unit 1 connected to a line and at least one slave unit 2 (corresponding to a plurality of slave units). Remote communication is possible in both directions within a certain distance (100 to 150 m) with the slave unit 2 in which the unit registration information is set.
[0017]
Such a cordless telephone device cannot perform cordless communication unless the parent device 1 and the child device 2 are linked in advance, but enables the cordless communication by linking the parent device 1 and the child device 2. These are the slave unit registration information on the master unit 1 side and the individual slave unit registration information on the slave unit 2 side. That is, in order to link the master unit 1 and the slave unit 2, the slave unit registration information that is the link condition of the master unit 1 side is provided on the master unit 1 side, and the slave unit 2 side link is provided on the slave unit 2 side. This means that it is necessary to set individual slave unit registration information as a condition.
[0018]
The base unit 1 transmits and receives voice signals to and from the calling side under the control of the control unit 3, and performs bidirectional cordless communication with the handset 2 side through the wireless transmission unit 4 and the wireless reception unit 5 of the cordless communication unit. . Since the master phone 1 is provided with the speakerphone call unit 6, if the switch of the speakerphone call unit 6 is pressed and off-hooked, it is possible to make a call without hand. Since the base unit 1 is also equipped with an answering machine 7, if the bell enters from the line and neither the base unit 1 nor the handset 2 is off-hooked, the answering machine 7 is activated. You can record incoming messages. The slave unit 2 also performs cordless communication with the base unit 1 bidirectionally through the wireless transmission unit 9 and the wireless reception unit 10 of the cordless communication unit under the control of the control unit 8, and the transmitting unit 11 and the receiving unit 12 Each can send and receive.
[0019]
When the main unit 1 receives a bell call from the line, the control unit 3 operates the changeover switch 13 to switch the line to the call circuit unit 14 side and receives the bell call from the line. Then, the control unit 3 generates bell incoming data for notifying the incoming of the bell and transmits it to the handset 2 side to generate a bell sound from the bell sound generation unit 15 of the handset 2 and to the display unit 16 of the handset 2. Displays incoming calls from the line. The user of the handset 2 can talk to the caller by operating the call key to go off-hook.
[0020]
However, when the convenience of the user is bad (including when the answering machine is used) and the handset 2 cannot be off-hooked, the answering machine unit 7 of the master machine 1 operates. As long as the bell rings for a predetermined number of times (for example, 3 times), the control unit 3 moves the changeover switch 13 from the call circuit unit 14 side to the answering machine unit 7 side unless it goes off-hook on either the handset 2 side or the base unit 1 side. Switch to. Then, the control unit 3 closes the line and activates the answering machine unit 7 to record a message coming from the line.
[0021]
Next, due to the occurrence of a power failure, the slave unit registration information, which is the link condition on the master unit 1 side, stored in the memory on the master unit 1 side has disappeared. A flow for restoring the slave unit registration information will be described.
[0022]
As shown in FIG. 2, when a power failure occurs, the power supply from the external power source to the base unit 1 indicated by the broken arrow is cut off. Therefore, the power supply to the volatile memory 17 such as a DRAM in which the master unit 1 stores the slave unit registration information is supplied as a capacitor as a substitute for the battery in the master unit 1 as indicated by the solid line arrow. 18 depends entirely on the amount of charge stored in 18. As shown in FIG. 3, even during a power failure, the voltage applied to the memory 17 can be maintained at a value equal to or higher than the memory holding voltage while the amount of electricity stored in the capacitor 18 is large, but the amount of electricity stored in the capacitor 18 is the voltage applied to the memory 17. Therefore, the voltage applied to the memory 17 will eventually fall below the memory holding voltage. When the voltage applied to the memory 17 falls below the memory holding voltage, the memory 17 is volatile, so the contents of the slave unit registration information, which is the link condition on the master unit 1 side, is lost. It becomes impossible to talk with the machine 2 due to a bad link.
[0023]
Since this cordless telephone device can use a plurality of slave units, the cordless telephone device is indicated as a slave unit 2 when the whole slave unit is indicated so as not to cause misunderstandings, but each of the plurality of slave units is indicated. In this case, the slave unit 2a, the slave unit 2b,.
[0024]
Since the main unit 1 uses the capacitor 18 as a substitute for the battery, the contents stored in the memory 17 can be maintained if the power outage is short, but if the power outage time is prolonged, it is stored in the memory 17. Since the contents are lost, the slave unit registration information disappears.
[0025]
However, as shown in FIG. 4, since the power source on the side of the slave unit 2 is the battery 19, the individual slave unit registration information necessary for the slave unit 2 to link with the master unit 1 is temporarily stored in the memory 20 of the slave unit 2. When registered, the individual slave unit registration information remains stored in the memory 20 without disappearing while the capacity of the battery 19 is sufficient and the memory holding voltage can be maintained. When the capacity of the battery 19 is reduced in the slave unit 2, a charging warning is displayed on the display unit 16. When the capacity of the battery 19 is further reduced, the slave unit 2 is suspended even if the memory holding voltage is exceeded. Become. That is, since the slave unit 2 can maintain the memory holding voltage even when the slave unit 2 is in a use stop state, the individual slave unit registration information stored in the memory 20 is not lost, and the slave unit 2 side link is safe. The condition is maintained.
[0026]
If a charging warning is displayed on the display unit 16 due to a decrease in the capacity of the battery 19 of the handset 2 or if the use of the handset 2 is stopped, the handset 2 can be immediately placed on the charger and charged. When the capacity of 19 is recovered, the display of the use stop state and the charging warning is canceled. Three terminals are provided on the bottom surface of the slave unit 2, but the two on the left and right are charging terminals used when charging the battery 19, and the parent unit 2 is placed when the slave unit 2 is placed on the central master unit 1. This is a control terminal for transmitting handset registration information from the handset 1 to the handset 2.
[0027]
Now, as described above, the master unit 1 loses the slave unit registration information due to a power failure, causes a link failure with the slave unit 2 and becomes unable to communicate with the slave unit 2, so that the link condition of the master unit 1 can be recovered. The slave unit registration information of the master unit 1 must be restored. Here, the subunit | mobile_unit 2 currently used is set to three units, and let each be subunit | mobile_unit 2a, 2b, 2c.
[0028]
When the master unit 1 and the slave units 2a, 2b, and 2c are linked, the slave unit registration information stored in the memory 17 of the master unit 1 is as shown in FIG. Three parts of the child device registration information corresponding to the child device 2a, the child device registration information corresponding to the child device 2b, and the child device registration information corresponding to the child device 2c are alive. However, when a power failure occurs, the slave unit registration information stored in the memory 17 of the master unit 1 becomes empty as shown in FIG. 6, and the slave unit registration information corresponding to each of the slave units 2a, 2b, and 2c. As a result, the master unit 1 and the slave units 2a, 2b, 2c cause a link failure and cannot perform cordless communication. Therefore, from now on, it will be explained how to restore the extinguished slave registration information by what method.
[0029]
First, the slave unit registration information on the master unit 1 side is partially restored using the individual slave unit registration information of the slave unit 2a. The meaning of partial recovery means that only the slave unit 2a recovers the link with the master unit 1, and the slave units 2b and 2c remain unlinked.
[0030]
In order to restore the slave unit registration information of the master unit 1, the slave unit 2a is first placed on the master unit 1. Then, the control unit 3 of the base unit 1 activates the handset registration information management unit 21 (see FIG. 1), and as shown in FIG. The slave unit registration information (actually empty as shown in FIG. 6) in the memory 17 is transmitted. On the side of the slave unit 2a to which the slave unit registration information is transmitted from the master unit 1 via the control terminal, the control unit 8 operates the individual slave unit registration information management unit 22 (see FIG. 1), It is checked whether or not individual (child device 2a) individual child device registration information exists therein.
[0031]
If the existence of the individual registration information of the child device 2a is confirmed in the child device registration information, the child device 2a does not transmit its own individual child device registration information to the parent device 1 by wireless communication. However, in this case, since the slave unit registration information of the master unit 1 disappears due to a power failure, the slave unit registration information naturally has no individual slave unit registration information in the slave unit registration information.
[0032]
Therefore, when the slave unit 2a recognizes that the individual slave unit registration information does not exist in the slave unit registration information transmitted from the master unit 1, the control unit 8 controls the individual slave unit registration information management unit 22. As shown in FIG. 7, the individual slave unit registration information stored in its own memory 20 is transmitted to the master unit 1 by wireless communication. This is because the self device is not registered in the handset registration information on the base unit 1 side, so the handset 2a side makes a self registration request to the base unit 1 side. When the master unit 1 receives the individual slave unit registration information of the slave unit 2 a, the control unit 3 controls the slave unit registration information management unit 21 to write the individual slave unit registration information of the slave unit 2 a in the memory 17. As shown in FIG. 8, only the slave unit 2 a has recovered the link with the master unit 1.
[0033]
By the way, when the slave unit registration information is updated, the master unit 1 transmits the updated slave unit registration information to the slave unit 2a again. However, the transmitted slave unit 2a has its own individual slave unit in the slave unit registration information. Since the registration information exists, the slave unit 2a does not transmit its own individual slave unit registration information to the master unit 1 by radio.
[0034]
Here, if "Claim 2" is mentioned, since at least one cordless telephone device uses the cordless handset 2, the individual cords stored in the cordless handset 2a as shown in FIG. The machine registration information is recorded in advance in the ROM 23 of the base unit 1, and when the stored contents of the memory 17 of the base unit 1 disappear due to a power failure, only the slave unit 2a is automatically loaded by loading data from the ROM 23 into the memory 17. In other words, it is to be linked with the main unit 1. In this way, only when the user uses only the first slave unit 2, an operation for restoring the link between the master unit 1 and the slave unit 2 is not required.
[0035]
Next, in order to further advance the partial recovery of the master unit 1 and the slave unit 2, the slave unit 2b that has not been linked is placed on the master unit 1 instead of the slave unit 2a that has recovered the link. Then, the control unit 3 of the master unit 1 activates the slave unit registration information management unit 21, and as shown in FIG. 10, the slave unit 2b in the memory 17 of the current self (master unit 1) is placed in the slave unit 2b. Communicate registration information. On the side of the slave unit 2b to which the slave unit registration information is transmitted from the master unit 1 via the control terminal, the control unit 8 activates the individual slave unit registration information management unit 22 and includes the self (child unit) in the slave unit registration information. It is checked whether or not the individual slave unit registration information of the device 2b) exists.
[0036]
As shown in FIG. 8, in the slave unit registration information, there is individual registration information of the slave unit 2a whose link has been restored, but naturally there is no individual slave unit registration information of the slave unit 2b whose link has not been completed.
[0037]
Therefore, when the slave unit 2b recognizes that the individual slave unit registration information does not exist in the slave unit registration information transmitted from the master unit 1, the control unit 8 controls the individual slave unit registration information management unit 22. As shown in FIG. 10, the individual slave unit registration information stored in its own memory 20 is transmitted to the master unit 1 by wireless communication. This is because the self unit is not registered in the sub unit registration information on the base unit 1 side, so the sub unit 2b side makes a self registration request to the base unit 1 side. When the master unit 1 receives the individual slave unit registration information of the slave unit 2 b, the control unit 3 controls the slave unit registration information management unit 21 to write the individual slave unit registration information of the slave unit 2 b in the memory 17. As shown in FIG. 11, the slave unit 2 a and the slave unit 2 b have recovered the link with the master unit 1.
[0038]
On the master unit 1 side, when the slave unit registration information is updated, the master unit 1 transmits the updated slave unit registration information to the slave unit 2b again. Since the individual child device registration information exists, the child device 2b does not transmit its own individual child device registration information to the parent device 1 by radio.
[0039]
Similarly, in order to further advance the partial recovery of the master unit 1 and the slave unit 2, the slave unit 2c that has not been linked is placed on the master unit 1 instead of the slave unit 2b that has recovered the link. Then, the control unit 3 of the master unit 1 activates the slave unit registration information management unit 21, and as shown in FIG. 12, the slave unit registration information of the current self (master unit 1) is stored in the placed slave unit 2 c. introduce. On the side of the slave unit 2c to which the slave unit registration information is transmitted from the master unit 1 via the control terminal, the control unit 8 operates the individual slave unit registration information management unit 22 and includes the self (child unit) in the slave unit registration information. It is checked whether or not the individual slave unit registration information of the machine 2c) exists.
[0040]
As shown in FIG. 11, the individual registration information of the slave units 2a and 2b whose links have been restored exists in the slave unit registration information, but naturally the individual slave unit registration information of the slave unit 2c that has not been linked exists. do not do.
[0041]
Therefore, when the slave unit 2c recognizes that the individual slave unit registration information does not exist in the slave unit registration information transmitted from the master unit 1, the control unit 8 controls the individual slave unit registration information management unit 22. As shown in FIG. 12, the individual slave unit registration information stored in its own memory 20 is transmitted to the master unit 1 by wireless communication. This is because the self unit is not registered in the sub unit registration information on the base unit 1 side, and the sub unit 2c side makes a self registration request to the base unit 1 side. When the parent device 1 receives the individual child device registration information of the child device 2 c, the control unit 3 controls the child device registration information management unit 21 to write the individual child device registration information of the child device 2 c in the memory 17. As shown in FIG. 5, the slave units 2a, 2b, and 2c have all recovered the link with the master unit 1 as a result.
[0042]
On the base unit 1 side, when the handset registration information is updated, the base unit 1 transmits the updated handset registration information to the handset 2c again. Since the individual child device registration information exists, the child device 2c does not transmit its own individual child device registration information to the parent device 1 by radio.
[0043]
As described above, in the present invention, when the master unit 1 loses the slave unit registration information due to a power failure, the slave unit registration of the master unit 1 is performed using the individual slave unit registration information stored in the slave unit 2. It is configured to restore information. This feature of the present invention that the slave unit registration information of the master unit 1 is restored by a simple operation of placing the slave units 2 on the master unit 1 one after another is the recovery of the slave unit registration information of the master unit after the power failure recovery It can be applied to the first use after purchasing the product.
[0044]
In other words, in order to link the parent device 1 and the child device 2 immediately after purchase, it is necessary to register the child device registration information and the individual child device registration information with both the parent device 1 and the child device 2. However, in the present invention, in order to link the master unit 1 and the slave unit 2 immediately after purchase, it is only necessary to register the individual slave unit registration information only on the slave unit 2 side. There is no need to register the slave unit registration information as described above. In other words, nothing is stored in the memory 17 of the base unit 1 immediately after purchase, but this is the same as the contents of the memory 17 of the base unit 1 at the time of a power failure, so This is exactly the same as the procedure for restoring machine registration information.
[0045]
However, the conventional device can link between the master unit 1 and the slave unit 2 without installing the slave unit 2 in the master unit 1, but in the present invention, the slave unit 2 is installed in the master unit 1. There is a difference that a link can be established between the master unit 1 and the slave unit 2 only in the case of making them.
[0046]
In the above explanation, only the cordless telephone apparatus corresponding to one line is mentioned. However, the present invention can also be applied to a cordless telephone apparatus compatible with a plurality of lines.
[0047]
【The invention's effect】
As described above, according to the present invention, a cordless communication unit that performs transmission and reception of an audio signal through a line and performs cordless communication with a child device, and child device registration that manages child device registration information that is a link condition on the parent device side A slave unit having a master unit having an information management unit, a cordless communication unit that performs cordless communication with the master unit, and an individual slave unit registration information management unit that manages individual slave unit registration information that is a link condition on the slave unit side When the slave unit is installed in the master unit, the slave unit registration information management unit of the master unit transmits the slave unit registration information to the slave unit, and the slave unit transmits the slave unit registration information transmitted thereto. If the self unit is not registered, the individual slave unit registration information management unit transmits the individual slave unit registration information to the master unit side, and the slave unit registration information management unit receives the slave unit registration information. The registration information is updated to register the installed slave unit. Therefore, even if the slave unit registration information stored on the master unit disappears due to a power failure and a link failure occurs with the slave unit, if the individual slave unit registration information stored on the slave unit is used, it is used. By simply changing the slave unit to the master unit one after another, the slave unit registration information of the master unit is restored and the master unit and slave unit are linked so that cordless communication is possible between the master unit and slave unit again. It becomes.
[Brief description of the drawings]
FIG. 1 is a block diagram showing the structure of a cordless telephone device according to an embodiment of the present invention.
FIG. 2 is a schematic diagram showing a transition of power supply in the base unit of the cordless telephone device according to the embodiment of the present invention;
FIG. 3 is a graph showing the amount of electricity stored in the base unit of the cordless telephone device according to the embodiment of the present invention;
FIG. 4 is a schematic diagram showing a transition of power supply in a handset of the cordless telephone device according to the embodiment of the present invention.
FIG. 5 is a schematic diagram showing the contents of handset registration information stored in the base unit of the cordless telephone device according to the embodiment of the present invention;
FIG. 6 is a schematic diagram showing the contents of handset registration information stored in the base unit of the cordless telephone device according to the embodiment of the present invention;
FIG. 7 is an explanatory diagram showing communication between the parent device and the child device of the cordless telephone device according to the embodiment of the present invention.
FIG. 8 is a schematic diagram showing the content of handset registration information stored in the base unit of the cordless telephone device according to the embodiment of the present invention;
FIG. 9 is a schematic diagram showing loading of handset registration information in the base unit of the cordless telephone device according to the embodiment of the present invention;
FIG. 10 is an explanatory diagram showing communication between the parent device and the child device of the cordless telephone device according to the embodiment of the present invention.
FIG. 11 is a schematic diagram showing the contents of handset registration information stored in the base unit of the cordless telephone device according to the embodiment of the present invention;
FIG. 12 is an explanatory diagram showing communication between the parent device and the child device of the cordless telephone device according to the embodiment of the present invention.
[Explanation of symbols]
1 Master unit
2 handset
3 Control unit
4 wireless transmitter
5 wireless receiver
6 Speakerphone call part
7 Answering machine
8 Control unit
9 Wireless transmitter
10 Wireless receiver
11 Sending part
12 Receiver
13 changeover switch
14 Communication circuit
15 Bell sound generator
16 Display section
17 memory
18 capacitors
19 battery
20 memory
21 Remote Unit Registration Information Management Department
22 Individual handset registration information management department
23 ROM

Claims (2)

A master unit having a cordless communication unit for performing cordless communication with the slave unit and a slave unit registration information management unit for managing slave unit registration information which is a link condition on the master unit side, as well as performing transmission and reception of audio signals through the line; A cordless telephone apparatus comprising: a cordless communication unit that performs cordless communication with a parent device; and a child device having an individual child device registration information management unit that manages individual child device registration information that is a link condition on the child device side. When the slave unit is installed in the master unit, the slave unit registration information management unit of the master unit transmits the slave unit registration information to the slave unit. If the slave unit is not registered in the transmitted slave unit registration information, The slave unit registration information management unit sends the individual slave unit registration information to the master unit side, and the master unit that has received the individual slave unit registration information is updated by the slave unit registration information management unit. A cordless telephone device characterized by performing registration. 2. The cordless telephone apparatus according to claim 1, wherein the initial value of the slave unit registration information of the master unit is set to register the first slave unit.

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