JP4001073B2 - Telephone system - Google Patents

Description

  The present invention relates to a telephone system, and more particularly to a telephone that includes a main unit connected to a telephone line and a plurality of extension telephones connected to the main unit, and uses a radio telephone as a main unit and a wireless sub unit as an extension telephone. It is about the system.

In a telephone system composed of a main unit connected to a telephone line and a plurality of extension telephones connected to the main unit, a radio telephone may be used as the extension telephone.
This wireless telephone is composed of a parent device and a wireless child device that make a pair, of which the parent device is connected to the main unit, and the wireless child device is connected to the parent device via a wireless line. This type of wireless telephone is called a curled cordless type cordless telephone because there is no curled cord for connecting the handset to the telephone body as compared with a general extension telephone. Usually, a base unit and a wireless slave unit belonging to the same wireless telephone perform wireless communication using the same preset identification information, that is, a system ID, thereby causing interference with the base unit and the wireless slave unit of another wireless telephone. It is the composition which avoids.

In such a telephone system in which a wireless telephone is connected as an extension telephone, the wireless handset of each wireless telephone can be freely carried, and may be erroneously placed on a base unit belonging to another wireless telephone.
In the case of misplacement, the master unit and the wireless slave unit belong to different wireless telephones, so the control of the master unit and the wireless slave unit by the main unit is not linked, and the user is confused. There is. For example, when it is normally placed, if it is picked up by the wireless slave unit from the master unit according to the incoming call display on the master unit, it is regarded as a response operation on the wireless telephone and the wireless slave unit automatically answers the incoming call it can. However, if it is misplaced, even if the wireless slave is picked up, it is regarded as an off-hook in another wireless telephone, and the wireless slave cannot automatically answer the incoming call.

Conventionally, as a method for detecting the mounting state of a wireless slave device relative to the master device, a system ID is obtained by performing wired communication and wireless communication between the master device and the wireless slave device placed on the master device. There has been proposed a method for detecting normal placement by using (see, for example, Patent Document 1).
As shown in FIG. 8, when the wireless slave unit is placed on the master unit and charging is started (step 300), the system ID is transmitted from the master unit to the wireless slave unit by wire communication (step 300). 301) The wireless slave unit compares the system ID from the master unit with the system ID of the wireless slave unit (step 302).

If the two system IDs match (step 302: YES), an ID confirmation indicating that the ID matches can be confirmed by wireless communication from the wireless slave unit to the master unit (step 303).
This confirms that the system ID matches with the wireless slave device placed on the parent device (step 304), and the wireless slave device is normally placed on the original master device. Can be confirmed. Further, when the ID confirmation is not notified from the wireless slave device, it can be determined that the wireless slave device is erroneously placed.
Therefore, it is possible to grasp the erroneous placement state of the wireless slave unit by the main unit by applying such a placement detection method to the radio telephone of the telephone system and notifying the main unit of the detection result of the base unit. it can.

The applicant has not yet found prior art documents related to the present invention by the time of filing other than the prior art documents specified by the prior art document information described in this specification.
JP 2001-038773 A

However, in such a conventional telephone system, there is a problem that the configuration of the master unit and the wireless slave unit becomes complicated when the above-described wireless slave unit placement detection method is adopted.
For example, in the wireless slave device placement detection method as described above, the system ID and the ID confirmation notification are exchanged by performing data communication between the master device and the wireless slave device placed on the master device. Thus, the coincidence of both system IDs is confirmed, and data communication for exchanging these pieces of information between the two is required.

At this time, if the wireless slave unit is misplaced and the two system IDs are different, wireless communication cannot be used. Therefore, wired communication is performed between the two separately from the wireless communication. ing. Therefore, a circuit configuration for performing wired communication is required for the master unit and the wireless slave unit, and a program for these wired communication and wireless communication is required, which complicates the configuration of the wireless telephone.
The present invention is for solving such problems, and provides a telephone system that can grasp the placement relationship between a master unit and a wireless slave unit without complicating the configurations of the master unit and the wireless slave unit. It is an object.

In order to achieve such an object, a telephone system according to the present invention includes a main apparatus connected to a telephone line and a plurality of extension telephones connected to the main apparatus. In a telephone system using a wireless telephone that includes a base unit to be connected and a wireless slave unit connected to the master unit via a wireless line, and where the wireless slave unit is installed in the master unit, A base unit detecting means for detecting time information related to an operation or control operation performed on or after any placement of the arbitrary wireless slave unit with respect to the base unit; By comparing the time information detected by the handset detection means and the handset detection means with the handset detection means for detecting time information related to the operation or control operation performed after the placement by the wireless handset. With the parent machine And a determination means for determining placement relationship between the breech device, time information, time information indicating a start timing regarding placement of the radio personal station with respect to the base unit, the time information indicating the end timing or start timing, The start timing includes the time information indicating the period from the start to the end timing, and the start timing is the start of the charging operation performed between the base unit and the base unit while the base unit is mounted on the base unit. Consists of timing .

In this case, exit timing may be the end timing of the charging operation performed between the said master unit and said radio personal station in a state where the radio personal station is placed in the master machine.

According to the present invention, the base unit detection means detects time information related to an operation or control operation performed after the placement of an arbitrary wireless slave unit or after the placement, and to the arbitrary base unit by the slave unit detection unit. Time information related to operations or control operations performed after the placement, and comparison between the time information detected by the parent device detection means and the child device detection means, Determining the placement relationship with the device, and further, as time information, time information indicating the start timing related to placement of the wireless slave device relative to the parent device, time information indicating the end timing, or from the start timing to the end timing Using the information including the time information indicating the period, as the start timing, the charging operation performed between the parent device and the wireless child device while the wireless child device is mounted on the parent device. Since to use a start timing, it is not necessary to data communications system ID wired between conventional manner master unit and the radio personal station, complicating the structure of the base unit and the radio personal station as compared with the conventional There is no need to make it.
Therefore, it is possible to grasp the normal placement / incorrect placement of the wireless slave device relative to the master device with only a slight change of changing the program of the existing master device, wireless slave device, and main device.

Next, embodiments of the present invention will be described with reference to the drawings.
FIG. 1 is a block diagram showing a configuration of a telephone system according to an embodiment of the present invention.
This telephone system is composed of a main device 10 connected to one or more telephone lines 11 from the network, and a plurality of radio telephones 20A, 20B to 20N accommodated in the main device 10. The device 10 exchanges and connects calls such as voice calls and data communications between the telephone line 11 and any of the radio telephones 20A, 20B to 20N.

The radio telephone 20A is configured by a pair of a master unit 30A connected to the main apparatus 10 via the extension transmission line 17, and a handset type radio slave unit 40A connected to the master unit 30A via a radio line. ing. The base unit 30 is provided with a charging stand, that is, a mounting place on which the wireless handset 40A is mounted and charged. When the base unit 30 is not used, the wireless handset is usually placed on the base station. Is done.
In the wireless telephone 20A, wireless communication is performed between the parent device 30A and the wireless slave device 40A using a system ID unique to the wireless telephone 20A set in advance. The configuration of the radio telephones 20B to 20N is the same as that of the radio telephone 20A, and is composed of a pair of a master unit 30B to 30N and a radio slave unit 40B to 40N, respectively.

  The main apparatus 10 includes an external line interface unit (hereinafter referred to as an external line I / F unit) 12 that controls the termination of the telephone line 11 and an internal line interface unit that performs data transmission with the radio telephones 20A to 20N via a wired extension transmission path 17. (Hereinafter referred to as an extension I / F unit) 13, a switch 14 for exchanging connection between the external line I / F unit 12 and the extension I / F unit 13, and each unit of the main unit 10 to control the telephone line 11 A control unit 15 that performs call control of each of the radio telephones 20A to 20N, and a storage unit that stores information necessary for control by the control unit 15, such as placement management information 16A for managing the placement state of the wireless slave units and programs 16 is provided.

In particular, the control unit 15 includes a microprocessor such as a CPU, and by reading and executing a program in the storage unit 16, the hardware and the program cooperate to realize various functional units, and perform various call controls. In addition, various management processes for the telephone system are performed.
The control unit 15 is provided with a determination unit 15A as a function unit. This determination means 15A compares the time information notified from each parent device and the wireless child device, and determines the placement relationship between the parent device and the child device that is the notification source of the time information based on the match / mismatch.

FIG. 2 shows a configuration example of base unit 30 (30A, 30B to 30N). The base unit 30 includes an extension interface unit (hereinafter referred to as an extension I / F unit) 31, a wireless interface unit (hereinafter referred to as a wireless I / F unit) 32, a voice processing unit 33, a display unit 34, a key input unit 35, A storage unit 36, a power feeding unit 37, a placement detection unit 38, and a parent device control unit 39 are provided.
The extension I / F unit 31 is a circuit unit that performs data transmission with the main apparatus 10 via the extension transmission path 17. The wireless I / F unit 32 is a circuit unit that performs data communication with the wireless slave device 40 (40A, 40B to 40N) via a wireless line. The voice processing unit 33 is a circuit unit having a speakerphone function for making a call without using a wireless slave unit, that is, a handset, and a function for generating various notification sounds.

The display unit 34 is a circuit unit that performs various displays by controlling the LEDs and the LCD based on instructions received from the main apparatus 10 by data transmission. The key input unit 35 is a circuit unit that detects a key operation by a user. The storage unit 36 is a memory that stores various information and programs used for processing operations in the parent device control unit 39. The power feeding unit 37 is a circuit unit that supplies power for charging the battery of the wireless slave device 40 electrically connected via the charging terminal 37A. The placement detection unit 38 is a circuit unit that detects whether or not the wireless slave device 40 is placed on the parent device 30.
The base unit control unit 39 has a microprocessor such as a CPU, and reads and executes the program in the storage unit 36, whereby the hardware and the program cooperate to control each unit of the base unit 30. As functional means, it has time measuring means 39A for measuring an arbitrary time and parent machine detecting means 39B for detecting time information from time measuring means 39A according to a predetermined timing.

FIG. 3 shows a configuration example of the wireless slave device 40. The wireless slave unit 40 includes a wireless interface unit (hereinafter referred to as a wireless I / F unit) 41, a voice processing unit 42, a battery 43, a charging unit 44, a state detection unit 45, a storage unit 46, a display unit 47, and a key input unit. 48 and a wireless slave unit controller 49 are provided.
The wireless I / F unit 41 is a circuit unit that performs data communication with the parent device 30 via a wireless line. The voice processing unit 42 is a circuit unit having a voice call function using a speaker and a microphone (not shown) and a function for generating various notification sounds. The battery 43 is a circuit unit that stores an operating power source used in each unit of the wireless slave device 40. The charging unit 44 is a circuit unit that charges the battery 43 with the power supplied from the parent device 30 via the charging terminal 44A. The state detection unit 45 is a circuit unit that detects an on-hook / off-hook state of the wireless slave device 40, that is, a mounting state.

The storage unit 46 is a memory for storing various information and programs used for processing operations in the wireless slave unit control unit 49. The display unit 47 is a circuit unit that performs various displays by controlling the LED and the LCD based on an instruction received from the parent device 30 by data communication. The key input unit 48 is a circuit unit that detects a key operation by a user.
The wireless slave device control unit 49 has a microprocessor such as a CPU, and reads and executes the program in the storage unit 46, whereby the hardware and the program cooperate to control each unit of the wireless slave device 40. As a functional unit, the functional unit includes a time measuring unit 49A for measuring an arbitrary time, and a slave unit detecting unit 49B for detecting predetermined time information from the time measuring unit 49A according to the detection result of the state detecting unit 45. Yes.

The state detection unit 45 is realized as a known technique by a general switch such as a hook switch that operates mechanically by placing the wireless slave unit 40 on the base unit 30 or a photo interrupter that operates electrically. There is also an example, and the placement detection unit 38 may use the same switch.
Further, as the state detection unit 45, there is an example in which the electrical connection between the charging terminal 37A and the charging terminal 44A used for the charging operation is detected between the parent device 30 and the wireless slave device 40, and the placement detection unit 38 is also the same. The electrical connection may be detected.

In this case, an amount of electricity that changes due to the electrical connection between the charging terminal 37A and the charging terminal 44A, for example, a current value or a voltage value is taken in from the power feeding unit 37 or the charging unit 44, and wirelessly connected to the parent device 30 according to the change. The presence / absence of the child device 40 may be detected.
When the battery 43 of the wireless slave device 40 is fully charged, the charging power from the master device 30 to the wireless slave device 40 becomes zero. Therefore, for example, when a current of a predetermined value or more is always passed between the charging terminal 37A and the charging terminal 44A, or a predetermined potential is applied, the charging terminal 37A and the charging terminal 44A are in a fully charged state. The presence / absence of electrical connection to may be detected.

FIG. 4 is an explanatory diagram of the placement management information 16A, FIG. 4 (a) is a configuration example of the placement management information, and FIG. 4 (b) is an erroneous placement example of the wireless slave unit.
The time information detected by the base unit detection means 39B of the base unit 30 is notified to the control unit 15 of the main apparatus 10 by data transmission. Further, the time information detected by the slave unit detecting means 49B of the wireless slave unit 40 is notified to the master unit control unit 39 of the master unit 30 by wireless communication, and notified to the control unit 15 of the main apparatus 10 in the same manner as described above. Is done.

In the control unit 15 of the main apparatus 10, the determination unit 15 </ b> A matches / mismatches the time information notified from the parent device 30 and the wireless child device 40, and the parent device 30 and the wireless child device 40 that are the source of notification of these time information. Based on this combination, it is determined to which parent device 30 the wireless slave device 40 is placed, and the corresponding relationship is managed by the placement management information 16A.
At this time, even if the parent device 30 and the wireless slave device 40 belong to different wireless telephones 20, when the time information indicates a common (same) operation or control operation, the same time or period length is set. Will show. Therefore, the placement relationship between the parent device 30 and the wireless child device 40 can be determined by comparing the time information.

Note that the timing units 39A and 49A of the master unit 30 and the wireless slave unit 40 cause a timing error to some extent, and therefore it is only necessary to provide a predetermined allowable range for determining whether the time information matches or does not match. This allowable range may be set for each telephone system as the sensitivity of determination.
Further, in order to determine the notification source of the time information, identification information indicating the notification source may be stored in the information. Further, each wireless telephone 20 is connected to the extension I / F unit 13 of the main apparatus 10 via the extension transmission path 17 in a one-to-one relationship, and the extension I / F unit that has received the time information. Based on the 13 port positions, it may be determined from which wireless telephone 20 the time information is from.

Individual identification information is assigned in advance to each parent device 30 and the wireless child device 40. In the example of FIG. 4A, the parent device identification information is managed in association with each wireless child device identification information. ing.
For example, as shown in FIG. 4B, when the wireless slave device 40A is erroneously placed on the master device 30B different from the original master device 30A, the placement management information 16A in FIG. “30B” is registered as parent device identification information corresponding to the wireless slave device 40A. Further, in this example, since the wireless slave device 40B is in a neglected state where it is not placed on the shifted master device 30, “Left” is registered as the master device identification information corresponding to the wireless slave device 40B.

Next, the operation of the telephone system according to the first embodiment of the present invention will be described with reference to FIG. FIG. 5 is a sequence diagram showing the operation of the telephone system according to the first embodiment of the present invention.
In the present embodiment, the placement relationship is determined when the wireless handset is placed on a base phone of a different wireless telephone. Hereinafter, a case will be described as an example in which the wireless slave device 40A constituting the wireless telephone 20A paired with the parent device 30A is placed on the parent device 30B of another wireless telephone 20B.

When the wireless slave device 40A is placed at the place where the master device 30B is placed (step 100), the charging terminal 37A of the master device 30B and the charging terminal 44A of the wireless slave device 40A are electrically connected, and the master device 30B. Power is supplied from the power supply unit 37 to the charging unit 44 of the wireless slave device 40A, and charging of the battery 43 of the wireless slave device 40A is started (step 101).
The wireless slave device control unit 49 of the wireless slave device 40A detects the start of the charging operation of any parent device 30 (30B) as a slave device on-hook by the state detection unit 45, and the slave device detection means 49B detects the charging operation. Time information relating to the start timing is detected (step 102).
As a result, the time sequentially counted by the timing means 49A, that is, the charging operation start time is detected as the time information.

Then, the wireless slave unit control unit 49 sends the time information detected by the slave unit detection means 49B together with the slave unit on-hook detected by the state detection unit 45 from the wireless I / F unit 41 to the master unit 30A via a wireless line. Transmit (step 103).
The base unit control unit 39 of the base unit 30A receives time information together with the slave unit on-hook via the wireless I / F unit 32 and transmits the time information from the extension I / F unit 31 to the main apparatus 10 via the extension transmission path 17. (Step 104).

On the other hand, the base unit control unit 39 of the base unit 30B detects the start of the charging operation for any radio slave unit 40 (40A) placed by the placement detection unit 38, and the base unit detection means 39B charges the charge. Time information relating to the start timing of the operation is detected (step 105).
As a result, the time sequentially counted by the time measuring means 39A, that is, the charging operation start time is detected as the time information. At this time, it is necessary to synchronize the time measured by the time measuring means of each wireless slave device and the parent device directly or indirectly between each other so as to be comparable.
Then, the base unit control unit 39 transmits the time information detected by the base unit detection means 39B from the extension I / F unit 31 to the main apparatus 10 via the extension transmission path 17 (step 106).

The control unit 15 of the main apparatus 10 receives the slave unit on-hook and time information from the wireless slave unit 40A via the extension I / F unit 13, and also receives the time information from the master unit 30B. These pieces of time information are compared (step 107).
At this time, when the timing indicated by these time information, that is, the charging operation start timing indicates the same time, or when the time difference between the two is within a predetermined allowable range, the time information indicates the same charging operation start timing. It is determined that the wireless slave device 40A as the transmission source is placed on the master device 30B (step 108). The placement relationship is stored in the placement management information 16 </ b> A of the storage unit 16.

  As described above, the base unit detection unit 39B detects time information related to an operation or control operation performed after the placement of an arbitrary wireless slave unit or after the placement, and the slave unit detection unit 49B detects an arbitrary parent unit. Time information related to the operation or control operation performed on or after the device is detected, and the time information detected by the parent device detection means 39B and the child device detection means 49B is compared by the determination means 15A. Since the placement relationship between the master unit and the wireless slave unit is determined by this, it is no longer necessary to perform data communication with the system ID between the master unit and the wireless slave unit via a conventional cable. The placement relationship between the parent device and the wireless child device can be grasped without complicating the configurations of the parent device and the wireless child device.

In addition, the base unit is provided with a base unit detection means 39B, and the base unit and the base unit are provided with a base unit detection means 49B, according to the timing of operations and control operations performed in common in the base unit and the base unit. Since each time information is detected, desired time information can be detected without a time delay from the timing. Therefore, when the placement relationship is determined by the main device, the placement relationship is more accurate than when the time information of these timings is detected by a device other than the parent device or the wireless slave device such as the main device in which the detection delay occurs. Can be judged.
In addition, since the time information indicating the charging start timing is used as the time information, when the wireless slave device is placed on an arbitrary master device, the placement relationship between the two can be grasped and the placement state When the call control is performed on the parent device and the wireless slave device, the call control reflecting the placement relationship between them can be performed.

Next, the operation of the telephone system according to the second embodiment of the present invention will be described with reference to FIG. FIG. 6 is a sequence diagram showing the operation of the telephone system according to the second embodiment of the present invention.
In the first embodiment described above, the case where the placement relationship is determined based on the timing at which the wireless slave device is placed on the master device of a different wireless telephone has been described. However, in this embodiment, the wireless slave devices are different. A case will be described in which the placement relationship is determined based on the timing taken up from the state of being placed on the base unit of the wireless telephone. In the following description, it is assumed that the wireless slave device 40A that forms the wireless telephone 20A in a pair with the parent device 30A is mounted on the parent device 30B of another wireless telephone 20B.

While the wireless slave device 40A is placed on the master device 30B, the charging operation from the master device 30B to the wireless slave device 40A is performed. When the wireless slave device 40A is picked up from the master device 30B, the electrical connection between the charging terminal 37A of the master device 30B and the charging terminal 44A of the wireless slave device 40A is disconnected, and the charging operation is stopped (step 110). .
The wireless slave device control unit 49 of the wireless slave device 40A detects the stop of the charging operation of any parent device 30 (30B) by the state detection unit 45 as a slave device off-hook by the state detection unit 45, and the slave device detection means 49B Then, time information relating to the end timing of the charging operation is detected (step 111).
As a result, the time sequentially counted by the timing means 49A, that is, the charging operation end time is detected as the time information.

Then, the wireless slave unit control unit 49 transmits the time information detected by the slave unit detection means 49B together with the slave unit off-hook detected by the state detection unit 45 from the wireless I / F unit 41 to the master unit 30A via a wireless line. Transmit (step 112).
The base unit control unit 39 of the base unit 30A receives time information together with the slave unit off-hook via the wireless I / F unit 32, and transmits the time information from the extension I / F unit 31 to the main device 10 via the extension transmission path 17. (Step 113).

On the other hand, the base unit control unit 39 of the base unit 30B detects the stop of the charging operation for any radio slave unit 40 (40A) that has been mounted by the mounting detection unit 38, and the base unit detection means 39B Time information relating to the end timing of the charging operation is detected (step 114).
As a result, the time sequentially counted by the time measuring means 39A, that is, the charging operation start time is detected as the time information. At this time, it is necessary to synchronize the time measured by the time measuring means of each wireless slave device and the parent device directly or indirectly between each other so as to be comparable.
Then, the base unit control unit 39 transmits the time information detected by the base unit detection means 39B from the extension I / F unit 31 to the main apparatus 10 via the extension transmission path 17 (step 115).

The control unit 15 of the main apparatus 10 receives the slave unit off-hook and time information from the wireless slave unit 40A via the extension I / F unit 13, and also receives the time information from the master unit 30B. Comparison is made by the determination means 15A (step 116).
At this time, when the timing indicated by these time information, that is, the charging operation end timing indicates the same time, or when the time difference between the two is within a predetermined allowable range, the time information indicates the same charging operation end timing. It is determined that the wireless slave device 40A that is the transmission source is placed on the master device 30B (step 117). The placement relationship is stored in the placement management information 16 </ b> A of the storage unit 16.

Therefore, as in the case of the first embodiment described above, it is no longer necessary to perform data communication of the system ID between the master unit and the wireless slave unit by wire as in the prior art. The placement relationship between the parent device and the wireless slave device can be grasped without complicating the configuration of the wireless slave device.
Also, since the time information indicating the charging end timing is used as the time information, the placement relationship between the two is ensured immediately before using the wireless slave device when it is picked up from any parent device. In the case of call control for the base unit and the wireless slave unit in the placed state, call control reflecting the placement relationship between them can be performed.

Next, the operation of the telephone system according to the third embodiment of the present invention will be described with reference to FIG. FIG. 7 is a sequence diagram showing the operation of the telephone system according to the third embodiment of the present invention.
In the first and second embodiments described above, the placement relationship is determined based on the instantaneous time information indicating the timing when the wireless handset is placed on the base unit of a different wireless telephone or the picked-up timing. Although the case has been described, in the present embodiment, a case will be described in which the placement relationship is determined based on time information indicating a period length from placement to pick-up. In the following description, it is assumed that the wireless slave device 40A that forms the wireless telephone 20A as a pair with the parent device 30A is placed on the parent device 30B of another wireless telephone 20B.

When the wireless slave device 40A is placed on the placement location of the master device 30B (step 120), the charging terminal 37A of the master device 30B and the charging terminal 44A of the wireless slave device 40A are electrically connected, and the master device 30B. Power is supplied from the power supply unit 37 to the charging unit 44 of the wireless slave device 40A, and charging of the battery 43 of the wireless slave device 43 is started (step 121).
The wireless slave device control unit 49 of the wireless slave device 40A detects the start of the charging operation of any parent device 30 (30B) as a slave device on-hook by the state detection unit 45, and the slave device detection means 49B detects the charging operation. The charging time is started from the start timing (step 122). At this time, with respect to the start of the charging time measurement, it is only necessary to start the time measuring timer of the time measuring means 49A.

The wireless slave device control unit 49 transmits the slave device on-hook detected by the state detection unit 45 from the wireless I / F unit 41 to the parent device 30A via the wireless line (step 123).
The base unit control unit 39 of the base unit 30A receives the slave unit on-hook via the wireless I / F unit 32 and transmits it from the extension I / F unit 31 to the main apparatus 10 via the extension transmission path 17 (step 124). ).

On the other hand, the base unit 30B detects the start of the charging operation for the arbitrary wireless slave unit 40 (40A) placed by the placement detection unit 38, and the base unit detection means 39B charges from the start timing of the charging operation. Time measurement is started (step 125). As for the start of the charging time measurement, a time measuring timer possessed by the time measuring means 39A may be activated.
At this time, it is not necessary to synchronize the time of the time measuring means of each wireless slave device and the parent device, and the unit time intervals (clock times for timekeeping) of the timekeeping timers may be matched.

In this way, after the wireless slave device 40A is placed on the master device 30B, the charging operation from the master device 30B to the wireless slave device 40A is performed. When the wireless slave device 40A is picked up from the master device 30B, the electrical connection between the charging terminal 37A of the master device 30B and the charging terminal 44A of the wireless slave device 40A is disconnected, and the charging operation is stopped (step 130). .
The wireless slave device controller 49 of the wireless slave device 40A detects the stop of the charging operation of any parent device 30 (30B) by the state detector 45 as the slave device off-hook by the state detector 45, and the slave device detector 49B Based on the end timing of the charging operation, the counting of the charging time is ended and the charging time is detected (step 131). At this time, the charging time may be calculated from the timing result of the timing timer by stopping the timing timer of the timing means 49A activated at the start of charging.

Then, the wireless slave unit control unit 49 transmits the time information detected by the slave unit detection means 49B together with the slave unit off-hook detected by the state detection unit 45 from the wireless I / F unit 41 to the master unit 30A via a wireless line. Transmit (step 132).
The base unit control unit 39 of the base unit 30A receives time information together with the slave unit off-hook via the wireless I / F unit 32, and transmits the time information from the extension I / F unit 31 to the main device 10 via the extension transmission path 17. (Step 133).

On the other hand, the base unit 30B detects the stop of the charging operation for the arbitrary wireless slave unit 40 (40A) placed by the placement detection unit 38, and the base unit detection means 39B detects the end of the charging operation. Based on this, the counting of the charging time is terminated and the charging time is detected (step 134). At this time, with respect to the charging time, it is only necessary to stop the timing timer possessed by the timing means 39A activated at the start of charging and calculate the charging time from the timing result of the timing timer.
Then, the base unit control unit 39 transmits the time information detected by the base unit detection means 39B from the extension I / F unit 31 to the main apparatus 10 via the extension transmission path 17 (step 135).

The control unit 15 of the main apparatus 10 receives the slave unit off-hook and time information from the wireless slave unit 40A via the extension I / F unit 13, and also receives the time information from the master unit 30B. Comparison is made by the determination means 15A (step 136).
At this time, when the timing indicated by these time information, that is, the charging time indicates the same period length, or when the time difference between the two is within a predetermined allowable range, the time information indicates the charging time of the same charging operation. Judgment is made and it is determined that the wireless slave device 40A as the transmission source is placed on the master device 30B (step 137). The placement relationship is stored in the placement management information 16 </ b> A of the storage unit 16.

Therefore, as in the first and second embodiments described above, it is no longer necessary to perform data communication between the master unit and the wireless slave unit by wire between the master unit and the wireless slave unit. The placement relationship between the master unit and the wireless slave unit can be grasped without complicating the configuration of the slave unit and the wireless slave unit.
Further, since the time information indicating the period length is used as the time information, there is no need to synchronize timing means for measuring time information to be compared as in the first and second embodiments. , Control for synchronization becomes unnecessary. Furthermore, the amount of information is larger when the period length is used compared to the instantaneous time information, and the probability that the pieces of time information coincide with each other is reduced, so that the placement relationship can be determined more accurately.

In each of the above embodiments, the case where the charging operation start timing, the end timing, and the period from the start timing to the end timing are individually used as the time information to be compared has been described. It may be used for determining the positional relationship. For example, in the third embodiment described above, the start timing and end timing of the charging operation are used as time information instead of the charging time, and the placement relationship is determined by comparing these start and end timings. May be.
As a result, the amount of information included in the time information is increased compared to the case of using time information consisting of a period length, and the probability that each time information coincides by chance is reduced, so that the placement relationship can be made more accurately. Can be judged.

Further, the timing for detecting the time information is not limited to the timing of starting and ending the charging operation. If the timing information is related to the operation or control operation common to the master unit and the wireless slave unit, the charging operation is further performed. Other than the time information related to the placing operation can be used in the same manner. The common operation or control operation includes not only an operation or control operation that can be detected simultaneously by the master unit and the wireless slave unit, but also an operation or control that can be detected between the master unit and the wireless slave unit with a certain time difference. Operations are also included.
Furthermore, when using information indicating a period length as time information, the start timing and end timing for different operations or control operations are used as the start and end timings of the period, not the start and end timings for the same operation or control operation. May be. For example, the placement start timing may be used as the start timing, and the charge end timing may be used as the end timing.

  In each of the above-described embodiments, the description has been made on the assumption that the on-off and off-hook of the wireless slave unit is detected according to the start and end of the charging operation. There are also cases where detection is performed by means other than presence / absence, for example, by a predetermined switch, or by detection of the presence or absence of electrical contact between charging terminals. In such a case, the time information may be detected based on the start timing and end timing of the placement regardless of the start and end of charging.

Further, these timings may be the operation timing of the circuit itself, or may be the control timing of the master unit control unit or the wireless slave unit control unit. For example, with respect to the charging operation, there is a case where charging is started without waiting for control by each control unit when the master unit and the wireless slave unit are electrically connected via the charging terminal. In some cases, the battery of the wireless slave unit is in a fully charged state, charging current is not flowing from the master unit to the wireless slave unit, and charging is substantially stopped.
In such a case, for example, a timing at which the start or end of charging is confirmed by each control unit based on a predetermined condition such as a threshold value of charging current, for example, a control timing such as a control for displaying the charging start or end with an LED. It is sufficient to detect time information by.

  In each of the above-described embodiments, the case where the determination unit 15A is provided in the control unit 15 of the main apparatus 10 has been described as an example. However, the present invention is not limited to this, and the main apparatus 10 constituting the telephone system is not limited thereto. You may provide in apparatuses other than this, for example, a main | base station and a radio | wireless subunit | mobile_unit. Further, as described above, it is not necessary to determine all the placement relationships by one determination means 15A, and only the placement relationship between the parties is determined by the determination means of the parent device or the wireless slave device that has been placed or picked up. It may be determined individually.

  For example, in FIG. 4B, the determination unit 15A provided in the parent device control unit 39 of the parent device 30B acquires time information from the wireless slave device 40A via the parent device 30A and the main device 10. The time relationship may be acquired by the own device to determine the placement relationship. In addition, the determination unit 15A provided in the wireless slave device control unit 49 of the wireless slave device 40A obtains time information from the master device 30B via the main device 10 and the master device 30A, and also obtains time information from the own device. You may make it determine by acquiring and mounting relationship. Alternatively, the determination unit 15A provided in the parent device control unit 39 of the parent device 30A obtains time information from the parent device 30B via the main device 10 and obtains time information from the wireless child device 40A via a wireless line. May be determined. In addition, when acquiring time information from another master unit or a wireless slave unit via the main device 10, the timing is within a determination target period provided before and after one of the time information acquired without passing through the main device 10. It is only necessary to acquire time information indicating

It is a block diagram which shows the structure of the telephone system concerning one embodiment of this invention. It is a block diagram which shows the structure of a main | base station. It is a block diagram which shows the structure of a wireless subunit | mobile_unit. It is the example of a structure of mounting management information, and an incorrect mounting example. It is a sequence diagram which shows operation | movement of the telephone system concerning the 1st Embodiment of this invention. It is a sequence diagram which shows operation | movement of the telephone system concerning the 2nd Embodiment of this Embodiment. It is a sequence diagram which shows operation | movement of the telephone system concerning the 3rd Embodiment. It is a sequence diagram which shows the conventional mounting detection method.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 ... Main apparatus, 11 ... Telephone line, 12 ... External line I / F part, 13 ... Extension I / F part, 14 ... Switch, 15 ... Control part, 15A ... Determination means, 16 ... Memory | storage part, 16A ... Placement management Information, 17 ... Extension transmission path, 20, 20A, 20B, ..., 20N ... Wireless telephone, 30, 30A, 30B, ..., 30N ... Master unit, 31 ... Extension I / F part, 32 ... Wireless I / F part, 33 ... Voice processing unit, 34 ... Display unit, 35 ... Key input unit, 36 ... Storage unit, 37 ... Power feeding unit, 37A ... Charging terminal, 38 ... Placement detection unit, 39 ... Master unit control unit, 39A ... Time measuring means , 39B: Master unit detection means, 40, 40A, 40B, ..., 40N ... Wireless slave unit, 41 ... Wireless I / F unit, 42 ... Audio processing unit, 43 ... Battery, 44 ... Charging unit, 44A ... Charging terminal, 45... State detection unit 46. Storage unit 47. Display unit 48. Key input unit 49. Breech machine control unit, 49A ... clocking means, 49B ... handset detection means.

Claims (2)

A main unit connected to a telephone line and a plurality of extension telephones connected to the main unit, and connected to the parent unit via a radio line and a parent unit connected to the main unit as the extension telephone In a telephone system using a wireless telephone that is composed of a pair of wireless slaves to be placed, and where the placement of the wireless slave is provided in the master,
A base unit detecting means for detecting time information related to an operation or control operation performed after any placement of the wireless slave unit with respect to the base unit or after the placement;
A slave unit detecting means for detecting time information related to an operation or a control operation performed after the placement or placement of the wireless slave unit with respect to an arbitrary master unit by the wireless slave unit;
A determination unit that determines the placement relationship between the parent device and the wireless child device by comparing the time information detected by the parent device detection unit and the child device detection unit ;
The time information includes time information indicating start timing related to placement of the wireless slave device relative to the master device, time information indicating end timing, or time information indicating a period from the start timing to the end timing,
2. The telephone system according to claim 1, wherein the start timing includes a start timing of a charging operation performed between the master unit and the radio slave unit in a state where the radio slave unit is mounted on the master unit . The telephone system according to claim 1 , wherein
The telephone system characterized in that the end timing is an end timing of a charging operation performed between the base unit and the wireless slave unit in a state where the wireless slave unit is mounted on the base unit.

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