JP2008205631A - Telephone equipment - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide telephone equipment which has a simple configuration and is capable of accurately informing of the peripheral situation by a simple operation. <P>SOLUTION: A charger 4 detachably supports a slave unit 3. A controller 20 of the slave unit 3 originates a call to telephone equipment of a preset destination to connect a transmission path when a certain time passes after detachment of the slave unit 3 from the charger 4. Attachment to and detachment from the charger 4 of the slave unit 3 are detected by a charging detection circuit 23 of the slave unit 3. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a telephone device in which a handset is attached to and detached from a support body realized by a charger or the like.

  In Patent Document 1, a cordless telephone including a master unit and a slave unit further includes a charger of the slave unit, and when a certain time elapses after the call ends with the slave unit disconnected from the charger, the slave unit is charged. Disclosed is a technique for prohibiting transmission from the slave unit until it is returned to the container. With this technology, an operator who has finished a call must return the slave to the charger unless the slave is used within a short period of time after the call ends, and the slave is always returned to the charger. It becomes.

  Patent Document 2 discloses a technology that includes a parent device and a child device, and transmits image information including a situation around the child device from the child device to the parent device when there is an abnormality around the child device. The In this technique, based on the image information from the slave unit, anomalies that have occurred around the slave unit can be investigated, for example, to help identify an intruder.

  Patent Document 3 discloses a technique for transmitting an image captured by a monitoring camera to a predetermined external communication device when an abnormality is detected by an abnormality detection sensor. The abnormality detection sensor is realized by a sensor that reacts to temperature, humidity, carbon monoxide concentration, smoke, flame, water, human or animal movement, sound, light, hot water temperature or vibration. With this technology, when an abnormality occurs, it is possible to notify an external communication device immediately and notify the abnormality.

  Patent Document 4 discloses a technique for automatically transmitting a pre-recorded voice or special sound when a predetermined time has elapsed after the handset is removed from the telephone body and transmitting a pre-recorded voice or special sound. . With this technology, when the operator tries to report an emergency situation but the operation of making a call is difficult, it is possible to report to a pre-registered report destination telephone with the minimum operation of removing the handset from the telephone body. be able to.

JP 7-74801 A JP-A-2005-227885 JP 2003-115949 A JP-A-7-203038

  When making a call, typically, the operator first removes the handset from the telephone body and then enters the telephone number. However, the operator cannot always perform such an operation. For example, if you suddenly lose your physical condition or if your limbs are bound by a burglar, you may not be able to perform the operations described above. In such a case, it is necessary to be able to make a call with a simple operation.

  The technique disclosed in Patent Document 1 is a technique for preventing the slave unit from being left unplugged from the charger. Patent Document 1 does not disclose a technique for making a call with a simple operation.

  In the technique disclosed in Patent Document 2, an operator's operation is not required when transmitting image information including the situation around the slave unit from the slave unit to the master unit. However, a sensor for detecting anomalies around the slave unit and a camera that captures the situation around the slave unit need to be mounted on the slave unit, thus increasing the number of parts and increasing costs. There is.

  In the technique disclosed in Patent Document 3, an operator's operation is not required for transmission to a predetermined external communication device. However, an abnormality detection sensor and a monitoring camera are required, and therefore there is a problem that the number of parts is increased and the cost is increased as in the technique disclosed in Patent Document 2.

  In the technique disclosed in Patent Document 4, it is possible to report to a pre-registered report destination telephone with a minimum operation of removing the handset from the telephone body as described above. However, it is a pre-registered voice or special sound that is transmitted to the pre-registered report destination telephone, and therefore there is a problem that the surrounding situation cannot be accurately transmitted.

  An object of the present invention is to provide a telephone device that has a simple configuration and can accurately convey a surrounding situation with a simple operation.

The present invention comprises a handset,
A support for detachably supporting the handset;
Attachment / detachment detecting means for detecting attachment / detachment of the handset with respect to the support,
Communication that makes a call to a preset telephone device and connects the transmission path after a certain period of time has elapsed since it was detected by the attachment / detachment detection means that the handset was detached from the support. And a control device.

  Further, the present invention is characterized in that the communication control means connects only the transmission path among the transmission path and the reception path.

  Further, the present invention is characterized in that the communication control means also connects the reception path when receiving a predetermined signal from the destination telephone device in a call state.

Moreover, this invention has a speaker which emits the notification sound for alert | reporting that the said handset is receiving the call signal,
The communication control means outputs sound from the telephone device of the other party from the speaker.

  According to the present invention, the support body detachably supports the handset. The handset is usually mounted on a support. The handset is detached from the support only when the handset is operated, such as when a call is received or when a call is made. Therefore, it is considered that an abnormality has occurred when a certain time has passed since the handset was detached from the support.

  In consideration of this point, the communication control means makes a call to a telephone apparatus of a preset destination when a certain time has elapsed after the handset is detached from the support. Therefore, it is possible to notify the other party's telephone device that an abnormality has occurred.

  In addition, the communication control means connects the transmission paths. Therefore, the voice around the handset can be transmitted to the telephone device of the other party. As a result, the situation around the handset can be accurately communicated to the operator who operates the destination telephone device.

  An operator who operates the telephone device of the present invention may not be able to perform an operation necessary for making a call. For example, when you suddenly lose your physical condition or when your limbs are tied up by a burglar, you may not be able to perform the operations necessary to make a call. Even in such a case, the operator who operates the telephone device of the present invention can ask for help with a minimum simple operation of removing the handset from the support.

  Attachment / detachment of the handset with respect to the support is detected by the attachment / detachment detecting means. Such attachment / detachment detection means can be realized by an existing configuration. Therefore, it is not necessary to provide a separate configuration for detecting an abnormality. As a result, the configuration can be simplified and an increase in cost can be prevented.

  Further, according to the present invention, the communication control means can connect only the transmission path among the transmission path and the reception path, thereby enabling only the transmission among the transmission and reception. In other words, it is possible to prevent the voice from the destination telephone device from being output from the handset.

  For example, if there is a burglar in a room where the telephone device of the present invention is installed, if the voice from the telephone device of the other party is output from the handset, the burglar is monitored by the telephone device of the other party. Will be known. In the present invention, such a problem can be avoided.

  Further, according to the present invention, when the communication control means receives a predetermined signal from the other party's telephone device in a call state, the communication control means also connects the reception path, thereby enabling both transmission and reception. it can.

  In the present invention as described above, a two-way call is possible. Therefore, the operator who operates the telephone device of the present invention and the operator who operates the telephone device of the other party can talk, and thereby the operator who operates the telephone device of the present invention can The situation can be conveyed in detail to the operator who operates the telephone device.

  In addition, it is possible to determine whether or not to connect the reception path based on the judgment of the operator who operates the destination telephone device. Therefore, it is possible to prevent the voice from the telephone device of the other party from being undesirably output from the handset.

  According to the present invention, the handset has a speaker that emits a notification sound for notifying that a call signal is being received. The communication control means outputs the voice from the destination telephone device from such a speaker. The sound output from the speaker of the handset is large enough to be heard without touching the handset to the ear. Therefore, even if the operator who operates the telephone device of the present invention cannot put the handset on his / her ear, he / she can hear the voice from the destination telephone device.

  FIG. 1 is a diagram showing a configuration of a telephone device 1 according to an embodiment of the present invention. The telephone device 1 of the present embodiment is realized by a cordless telephone system. The telephone device 1 supports a base unit 2 connected to a telephone line, which is a predetermined communication line, a handset 3 that can communicate with the base unit 2 wirelessly, and a handset 3 in a detachable manner. And a charger 4 for charging. In the present embodiment, a handset is realized by the handset 3 and a support is realized by the charger 4.

  Although the number of slave units 3 is 1 in FIG. 1, the number of slave units 3 may be plural. The number of the chargers 4 should just be the same as the number of the subunit | mobile_units 3. In other words, the subunit | mobile_unit 3 and the charger 4 should just respond | correspond one-to-one.

  The charger 4 has a contact terminal and a power supply circuit. The power supply circuit adjusts the electric power from the commercial AC power supply to a voltage value and a current value suitable for charging the child device 3 by a transformer and a rectifier. Thereby, the electric power from a commercial alternating current power supply can be used for charge of the subunit | mobile_unit 3. FIG.

  FIG. 2 is a block diagram showing an electrical configuration of the slave unit 3. The subunit | mobile_unit 3 is provided with the battery 10 implement | achieved by a secondary battery. The subunit | mobile_unit 3 is driven with the electric power from the battery 10. FIG. In the present embodiment, charging the handset 3 means charging the battery 10 provided in the handset 3.

  The handset 3 includes a dial button group 11, an operation button group 12, a display device 13, a storage device 14, a microphone 15, an earpiece 16, a speaker 17, an RF (Radio Frequency) processing unit 18, a power supply The unit 19 and the control device 20 are included. In the present embodiment, a communication control unit is realized by the control device 20.

  The dial button group 11 inputs input information including a telephone number. The operation button group 12 includes a hold button 21 for inputting a command for holding an external line call and an extension button 22 for inputting a command for an internal call. An extension call is made with the parent device 2. When there are a plurality of slave units 3, the extension call is also performed with other slave units 3.

  The display device 13 displays various information including a telephone directory. The telephone directory is information in which a telephone number is associated with the name of an operator who operates the telephone device corresponding to the telephone number. The display device 13 is realized by a liquid crystal display device, for example.

  The storage device 14 stores a control program for controlling the entire slave unit 3. In addition to the control program, the storage device 14 stores various programs such as a wireless communication program and an application program for controlling wireless communication with the parent device 2, and further stores various information including a telephone directory. In the present embodiment, the storage device 14 stores the telephone number of the destination telephone device to be notified when an abnormality occurs. This telephone number is preset. The storage device 14 is realized by a ROM (Read Only Memory) and a RAM (Random Access Memory).

  The microphone 15 is used for transmission and converts sound into an electrical signal. The earpiece 16 is used for receiving a call and converts an electrical signal into a voice. The speaker 17 emits a notification sound for notifying that the call signal is being received.

  The RF processing unit 18 transmits and receives signals via an antenna for wireless communication with the parent device 2. The RF processing unit 18 is given a signal to be transmitted from the control device 20. The RF processing unit 18 gives the received signal to the control device 20. The RF processing unit 18 includes a wireless tuner.

  The power supply unit 19 includes a contact terminal and a charge detection circuit 23. The contact terminal of the power supply unit 19 is electrically connected to the contact terminal of the charger 4 when the handset 3 is attached to the charger 4. The battery 10 provided in the subunit | mobile_unit 3 is charged by electrically connecting the contact terminal of the power supply part 19 and the contact terminal of the charger 4. FIG.

  The charge detection circuit 23 detects whether or not the child device 3 is attached to or detached from the charger 4 by detecting whether or not the charger 4 supplies power to the child device 3. The charge detection circuit 23 detects whether or not the charger 4 supplies power to the child device 3 by detecting a voltage value or a current value at the contact terminal of the power supply unit 19, for example. In a state in which power is supplied to the child device 3 by the charger 4, the charge detection circuit 23 gives an attachment signal indicating that the child device 3 is attached to the control device 20, and the child device 3 by the charger 4. In the state where the power is not supplied to the control unit 20, the control device 20 is given a disconnection signal indicating that the slave unit 3 is in the disconnection state. In the present embodiment, such a charge detection circuit 23 realizes attachment / detachment detection means.

  The control device 20 performs overall control of the child device 3 based on a control program stored in the storage device 14. The control device 20 has a transmission path and a reception path. By connecting the transmission path, the transmission by the microphone 15 can be validated, and the transmission sound from the microphone 15 can be transmitted to the destination telephone device. In addition, by connecting the reception path, reception by the earpiece 16 can be validated, and the reception sound from the other party's telephone device can be output from the earpiece. The control device 20 modulates the signal from the microphone 15, gives the modulated signal to the RF processing unit 18, demodulates the signal from the RF processing unit 18, and gives the demodulated signal to the earpiece 16. The control device 20 has a timer for measuring time. The timer measures a certain time. The control device 20 is realized by a central processing unit (abbreviated as CPU).

  FIG. 3 is a block diagram showing an electrical configuration of base unit 2. The base unit 2 includes a dial button group 31, an operation button group 32, a display device 33, a storage device 34, a handset 35, a handset attachment / detachment detection device 36, a speaker 37, an RF processing unit 38, and a signal detection. A circuit 39, a network control device 40, and a control device 41 are included.

  The dial button group 31 inputs input information including a telephone number. The operation button group 32 includes a hold button 42 for inputting a command for holding an outside line call, and an extension button 43 for inputting a command for an extension call. The extension call is performed with the handset 3.

  The display device 33 displays various information including a telephone directory. The display device 33 is realized by a liquid crystal display device, for example.

  The storage device 34 stores a control program for controlling the entire master unit 2. In addition to the control program, the storage device 34 stores various programs such as a wireless communication program and an application program for controlling wireless communication with the handset 3, and further stores various information including a telephone directory. The storage device 34 is realized by a ROM and a RAM.

  The handset 35 is used for transmission and reception, and converts sound into an electric signal and converts the electric signal into sound. The handset attachment / detachment detection device 36 is a device for detecting attachment / detachment of the handset 35. For example, the handset attachment / detachment detection device 36 detects that a current flows through the main body when the handset 35 is detached from the main body. The speaker 37 emits a notification sound for notifying that the call signal is being received.

  The RF processing unit 38 transmits and receives signals via an antenna for wireless communication with the slave unit 3. The RF processing unit 38 receives a signal to be transmitted from the control device 41. The RF processing unit 38 gives the received signal to the control device 41. The RF processing unit 38 includes a wireless tuner.

  The signal detection circuit 39 detects a signal representing a caller telephone number by a caller number notification service, and also detects a DTMF signal from a destination telephone device. The network control device 40 functions as a connection interface, and transmits and receives signals in an external line call according to a predetermined protocol. The network control device 40 detects a call signal and transmits a selection signal representing a telephone number.

  The control device 41 performs overall control of the parent device 2 based on a control program stored in the storage device 34. The control device 41 modulates the signal from the handset 35, supplies the modulated signal to the RF processing unit 38 and the network control device 40, and demodulates and demodulates the signal from the RF processing unit 38 and the network control device 40. To the handset 35. The control device 41 is realized by a CPU or the like.

  FIG. 4 is a flowchart for explaining the abnormality reporting operation by the control device 20 of the slave unit 3. The abnormality reporting operation by the control device 20 of the child device 3 is started when the power is supplied to the child device 3. The subunit | mobile_unit 3 is mounted | worn with the charger 4, and the mounting signal is given to the control apparatus 20 from the charge detection circuit 23. FIG.

  When the abnormality notification operation is started, first, in step a1, it is determined whether or not the signal from the charge detection circuit 23 has changed from the attachment signal to the separation signal. Thereby, it can be determined whether or not the handset 3 is detached from the charger 4. The operation of step a1 is repeatedly executed until the signal from the charge detection circuit 23 changes from the attachment signal to the separation signal. Proceed to

  In step a2, a timer is activated to determine whether or not a certain time has elapsed since the signal from the charge detection circuit 23 changed from the attachment signal to the separation signal. The predetermined time is set in advance. This fixed time is selected to be longer than the time required for the operator to operate the handset 3 after the handset 3 is detached from the charger 4. The fixed time is selected to be about 15 to 20 seconds. The operation of step a2 is repeatedly executed until a predetermined time elapses. When it is determined that the predetermined time elapses, the process proceeds to step a3.

  Although omitted in FIG. 4, when the signal from the charge detection circuit 23 changes from the disconnection signal to the mounting signal while the operation of the step a2 is repeatedly executed, the process returns to the step a1. If the dial button group 11 or the operation button group 12 of the handset 3 is operated while the operation of the step a2 is repeatedly executed, the timer is stopped, the abnormality reporting operation is terminated, and the normal call operation is performed. Move on. When the normal call operation is terminated and the signal from the charge detection circuit 23 changes from the disconnection signal to the wearing signal, the process returns to step a1.

  In step a3, a call is made to a destination telephone device set in advance. More specifically, after a call signal is transmitted by the RF processing unit 18 and connected to the outside line by the master unit 2, the telephone number of the other party's telephone device to be notified when an abnormality occurs is read from the storage device 14, and this telephone A selection signal representing a number is transmitted by the RF processing unit 18. When it is off-hooked by the other party's telephone device, it enters a call state. Next, in step a4, only the transmission path is connected among the transmission path and the reception path. The connection of the transmission path may be performed prior to the transmission of the selection signal.

  Next, in step a5, it is determined whether or not a specific DTMF (Dial Tone Multi Frequency) signal, which is a predetermined signal, has been received. An operator who operates the telephone device of the other party knows in advance an operation necessary for transmitting a specific DTMF signal, and performs the operation at the operator's discretion. In consideration of the case where the operator who operates the destination telephone device does not know or forgets the operation, the telephone device 1 according to the present embodiment transmits a voice for teaching the operation to the destination telephone device. You may make it transmit. If it is determined that a specific DTMF signal has been received, the process proceeds to step a6. If it is determined that a specific DTMF signal has not been received, the process proceeds to step a7. In step a6, the reception path is also connected, and the process proceeds to step a7.

  In step a7, it is determined whether or not a busy tone that is a busy tone is detected. This makes it possible to determine whether or not the other party's telephone device is on-hook. If it is determined that the busy tone is not detected, the process returns to step a5. If it is determined that the busy tone is detected, the process proceeds to step a8. In step a8, the RF processing unit 18 transmits an end-call signal and the base unit 2 disconnects the outside line. Thereafter, the abnormality reporting operation is terminated.

  According to the present embodiment as described above, the handset 3 is normally attached to the charger 4. The cordless handset 3 is disconnected from the charger 4 only when the handset 3 is operated, such as when a phone call is made or when a phone call is made. Therefore, it is considered that an abnormality has occurred when a certain period of time has passed since the handset 3 is detached from the charger 4.

  In consideration of this point, the control device 20 of the child device 3 makes a call to a preset telephone device when a certain time has elapsed after the child device 3 is disconnected from the charger 4. . Therefore, it is possible to notify the other party's telephone device that an abnormality has occurred. The predetermined time is selected to be longer than the time required for the operator to operate the handset 3 after the handset 3 is detached from the charger 4. As a result, it is possible to avoid a problem that an undesired call is made to a telephone apparatus of a destination set in advance.

  When the dial button group 11 or the operation button group 12 of the handset 3 is operated after the handset 3 is detached from the charger 4, the control device 20 of the handset 3 stops the timer and reports an abnormality. End the operation and move to normal call operation. As a result, it is possible to avoid a problem that an undesired call is made to a preset telephone device during operation by the operator. In this case, the control device 20 of the child device 3 starts the abnormality notification operation again when the normal call operation is terminated and the signal from the charge detection circuit 23 changes from the disconnection signal to the attachment signal. As a result, it is possible to reliably report that an abnormality has occurred to the other party's telephone device.

  And the control apparatus 20 of the subunit | mobile_unit 3 connects a transmission path | route. Accordingly, it is possible to convey the voice around the handset 3 to the telephone device of the other party. As a result, the situation around the handset 3 can be accurately communicated to the operator who operates the destination telephone device.

  An operator who operates the telephone device 1 of the present embodiment may not be able to perform an operation necessary for making a call. For example, when you suddenly lose your physical condition or when your limbs are tied up by a burglar, you may not be able to perform the operations necessary to make a call. Even in such a case, an operator who operates the telephone device 1 according to the present embodiment can ask for help with a minimum simple operation of detaching the handset 3 from the charger 4.

  In addition, when the operator who operates the telephone device 1 according to the present embodiment cannot hold the handset 3, the handset 3 may be detached from the charger 4 by tilting the handset 3. At this time, the handset 3 is not necessarily in a desired posture.

  Here, as a comparative example, a case is assumed where the periphery of the slave unit 3 is photographed with a camera. In this case, the surrounding situation may not be photographed depending on the orientation of the camera. For example, if the camera faces the floor, only the floor surface can be taken.

  In contrast to such a comparative example, in the present embodiment, sound around the handset 3 is collected by the microphone 15. Since the sound can wrap around, the sound around the handset 3 can be collected by the microphone 15 regardless of the direction of the microphone 15. Therefore, the situation around the handset 3 can be reliably transmitted to an operator who operates the telephone device of the other party.

  Even if the operator leaves the handset 3 from the charger 4 and the operator forgets to attach the handset 3 to the charger 4, a call is made to the preset telephone device of the other party. Called. Therefore, it is possible to notify the other party's telephone device that the handset 3 is forgotten to be attached to the charger 4.

  Attachment / detachment of the handset 3 with respect to the charger 4 is detected by the charge detection circuit 23. Such a charge detection circuit 23 can be realized by an existing configuration. Therefore, it is not necessary to provide a separate configuration for detecting an abnormality. As a result, the configuration can be simplified and an increase in cost can be prevented.

  Further, according to the present embodiment, the control device 20 of the handset 3 connects only the transmission path among the transmission path and the reception path, thereby enabling only the transmission among the transmission and reception. can do. In other words, it is possible to prevent the handset 3 from outputting sound from the telephone device of the other party.

  For example, if there is a burglar in the room where the telephone device 1 of the present embodiment is installed, when the voice from the telephone device of the other party is output from the handset 3, the telephone device of the other party monitors it. It is known to the robbers. In the present embodiment, such a problem can be avoided.

  Further, according to the present embodiment, when receiving a specific DTMF signal from the other party's telephone device in a call state, the control device 20 of the handset 3 also connects the reception path, thereby transmitting and receiving speech. Both can be validated.

  In this embodiment, two-way communication is possible. Therefore, it is possible to talk between an operator who operates the telephone device 1 of the present embodiment and an operator who operates the telephone device of the other party, and thereby operates the telephone device 1 of the present embodiment. The operator can tell the situation in detail to the operator who operates the destination telephone device.

  In addition, it is possible to determine whether or not to connect the reception path based on the judgment of the operator who operates the destination telephone device. Therefore, it is possible to prevent undesired output from the handset 3 of the voice from the other party's telephone device.

  The above-described embodiment is merely an example of the present invention, and the configuration can be changed within the scope of the present invention. For example, the control device 20 of the child device 3 may be configured to output the voice from the destination telephone device from the speaker 17 of the child device 3. The speaker 17 of the handset 3 is for outputting a notification sound. Therefore, the sound output from the speaker 17 of the handset 3 is of a size that can be sufficiently heard without touching the handset 3 to the ear. Become. Therefore, an operator who operates the telephone device 1 according to the present embodiment can hear the voice from the telephone device of the other party even when the handset 3 cannot be applied to the ear.

  The control device 20 of the handset 3 may be configured to repeatedly make a call to a preset destination telephone device. Specifically, the control device 20 of the handset 3 makes a call to the destination telephone device after a certain period of time has passed since the handset 3 is detached from the charger 4, and when there is no response The call is stopped once, and after a while, the call is made again to the telephone device of the other party. Repeat this. As a result, it can be more reliably notified that an abnormality has occurred.

  The control device 20 of the child device 3 stores the sound around the child device 3 in the storage device 14 until a predetermined time elapses immediately after the child device 3 is detached from the charger 4. The voice stored in the storage device 14 may be transmitted to the destination telephone device. A sound important for notifying abnormality may be emitted immediately after the handset 3 is detached from the charger 4. Considering this point, by configuring as described above, the situation around the handset 3 can be reliably transmitted to an operator who operates the telephone device of the other party.

  A plurality of telephone numbers of the destination telephone apparatus to be notified when an abnormality occurs may be set. In this case, a priority order is set for each telephone number. The control device 20 of the handset 3 makes a call sequentially to each counterpart telephone device corresponding to each telephone number according to the priority order. If there is no response after making a call to each destination telephone device in sequence, the call returns to the beginning and is repeated. As a result, it can be more reliably notified that an abnormality has occurred.

  When the control device 20 of the handset 3 makes a call to a preset destination telephone device, the control device 20 displays an image on the display device 13 that shows that the call is made to the destination telephone device. It may be configured not to display. As a result, for example, when a burglar is in the room where the telephone device 1 of the present embodiment is installed, the problem that the robber is informed that the telephone device of the other party has been notified is avoided. Can do.

  The predetermined signal is not limited to the DTMF signal. The predetermined signal may be a dial pulse, for example, or may be a signal assigned for each specific frequency.

  The telephone number of the destination telephone device to be notified when an abnormality occurs may be stored in the storage device 34 of the parent device 2. In this case, the control device 20 of the handset 3 transmits a call request when a predetermined time has elapsed since the signal from the charge detection circuit 23 changed from the attachment signal to the disconnection signal. Upon receiving the call request, the control device 20 of the base unit 2 reads the telephone number of the destination telephone device from the storage device 34 of the base unit 2 in response to the call request, and this telephone number A selection signal representing is transmitted via the telephone line. In this case, the same effect as that of the above-described embodiment can be achieved.

  The charging method of the child device 3 by the charger 4 may be a contactless charging method. As an example, the charger 4 is provided with a primary coil, the slave unit 3 is provided with a secondary coil, and the primary coil of the charger 4 and the secondary coil of the slave unit 3 are electrically connected by electromagnetic induction. May be connected. In this case, the power supply unit 19 detects the presence or absence of power supply to the child device 3 by the charger 4 by detecting the output value of the output from the secondary coil, for example, and thereby the child device by the charger 4 3 is detected. In this case, the same effect as that of the above-described embodiment can be achieved.

  Master device 2 may be configured to charge child device 3 by supporting child device 3 in a detachable manner. In other words, the support body may be realized by the parent device 2. In this case, the same effect as that of the above-described embodiment can be achieved.

  The control device 20 of the slave unit 3 may be configured to be switchable between a first setting state in which the abnormality notification operation is performed and a second setting state in which the abnormality notification operation is not performed. In this case, the operator can select in advance whether or not to perform the abnormality notification operation, thereby improving convenience.

  The control device 20 of the child device 3 may be configured to make a call to the parent device 3 when a certain time has elapsed after the child device 3 is detached from the charger 4. In other words, the destination telephone device set in advance may be the parent device 2.

  The telephone device is not limited to the cordless telephone system. For example, when a certain time elapses after the handset is detached from the main body of the telephone device, a call is made to the preset telephone device of the other party, A telephone device that connects a transmission path may be used. In this case, a handset is realized by the handset, and a support is realized by the telephone device main body. Attachment / detachment of the handset to / from the telephone device body is detected by the handset attachment / detachment detection device. Even in this case, it is possible to achieve the same effect as the above-described embodiment.

It is a figure which shows the structure of the telephone apparatus 1 which is one Embodiment of this invention. It is a block diagram which shows the electric constitution of the subunit | mobile_unit 3. FIG. 3 is a block diagram showing an electrical configuration of a base unit 2. FIG. It is a flowchart for demonstrating the abnormality notification operation | movement by the control apparatus 20 of the subunit | mobile_unit 3. FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Telephone apparatus 2 Main | base station 3 Subordinate apparatus 4 Charger 20 Control apparatus of subordinate apparatus 3 23 Charge detection circuit

Claims (4)

A handset,
A support for detachably supporting the handset;
Attachment / detachment detecting means for detecting attachment / detachment of the handset with respect to the support,
Communication that makes a call to a preset telephone device and connects the transmission path after a certain period of time has elapsed since it was detected by the attachment / detachment detection means that the handset was detached from the support. And a control device.   2. The telephone apparatus according to claim 1, wherein the communication control unit connects only the transmission path among the transmission path and the reception path.   3. The telephone apparatus according to claim 2, wherein the communication control means also connects the reception path when receiving a predetermined signal from the telephone apparatus of the other party in a call state. The handset has a speaker that emits a notification sound for notifying that a call signal is being received;
4. The telephone apparatus according to claim 3, wherein the communication control means outputs a voice from the destination telephone apparatus from the speaker.

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