JP2010093355A - Slave unit of cordless telephone - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a slave unit 2 of a cordless telephone which can be used instead of a flashlight during a power failure. <P>SOLUTION: The slave unit 2 transmits a signal requesting radio connection to a master unit (S120 step) when it is turned from a charged state to the state of non-charge (YES in S110 step), and then starts the radio connection with the master unit when an ACK signal is received from the master unit (YES in S130 step). On the other hand, when the ACK signal cannot be received from the master unit (NO in S130 step), the slave unit 2 is turned to a flashlight mode for lighting a white LED (S150 step). <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a handset of a cordless telephone device.

A number of technologies related to a cordless telephone device in which a parent device and a child device can be wirelessly connected have been proposed. For example, Patent Document 1 automatically turns on a lamp when a handset is lifted from a charger, A technique that can be used instead of an electric light is disclosed.
Japanese Patent Laid-Open No. 5-207118

  However, the technique described in the cited document 1 is not practical because the lamp is always turned on when the handset is lifted from the charger. From the viewpoint of reducing the power consumption of the handset battery as much as possible, it is preferable that the lamp is turned on only during a power failure (or when there is an instruction operation by the user).

The invention described in claim 1 is a cordless telephone device slave device including a master device and a slave device, and the slave device transmits a radio signal to the master device when the state changes from a charged state to a non-charged state. If no response signal is received from the master unit, the flashlight mode is entered.
The invention according to claim 2 is a cordless telephone device slave device comprising a master device and a slave device, and the slave device transmits a radio signal to the master device when the state changes from a charged state to a non-charged state. If the response signal is not received from the master unit, the white LED is turned on.
The invention described in claim 3 is a cordless telephone device slave device including a master device and a slave device, wherein the slave device includes a battery and a charge detection unit that detects whether or not the battery is in a charged state. A transmission / reception unit that transmits / receives a radio signal to / from the base unit, a light emitting unit, and a control unit, and the control unit detects that the battery has changed from a charged state to a non-charged state. If the transmission / reception unit controls the transmission / reception unit to transmit a radio signal to the master unit, the transmission / reception unit starts measuring the predetermined time, and the transmission / reception unit causes the parent unit to wait until the measurement of the predetermined time ends. When it is determined that the wireless signal returned from the machine has not been received, the light emitting unit is caused to emit light.
According to a fourth aspect of the present invention, there is provided a cordless telephone device slave unit according to the third aspect, wherein the control unit automatically turns off the light emitting unit when a predetermined time elapses after the light emitting unit is turned on. Features.
The invention according to claim 5 is the cordless handset of the cordless telephone device according to claim 3, wherein the control unit is in a state in which the transmitter / receiver can be wirelessly connected to the base unit after the light emitting unit is turned on. If it is determined that the light emitting unit has been turned off, the light emitting unit is turned off.

  In the present invention, since the handset automatically enters the flashlight mode when a power failure occurs, the user can use the handset as a flashlight without any special operation during a power failure. Further, in a non-power failure state, the slave unit can be used as a slave unit of a normal cordless telephone device.

  According to the first aspect of the present invention, it is possible to automatically set the slave unit to the flashlight mode when a power failure occurs, and the user can use the slave unit as a flashlight without any special operation during a power failure. Is possible.

  According to the second aspect of the invention, it is possible to automatically turn on the white LED of the slave unit when a power failure occurs, and the user can use the slave unit as a flashlight without any special operation at the time of a power failure. Is possible.

According to the invention described in claim 3, when the battery changes from the charged state to the non-charged state, if the slave unit does not receive a response radio signal from the master unit, the light emitting unit automatically emits light. The user can use the handset as a flashlight without any special operation during a power failure.
According to the invention described in claims 4 and 5, the light emitting unit can be turned off without any special operation by the user.

Embodiments of the present invention will be described below with reference to the drawings. In addition, embodiment shown here is an example and this invention is not limited to embodiment shown here.
<1. About the configuration of the telephone system>
FIG. 1 is a block diagram showing a configuration of a telephone system including a cordless telephone apparatus according to the present invention. This system includes at least a master unit 1 (= main communication device), a slave unit 2 (= sub communication device), a wired LAN 41, a wireless communication network 42, an IP telephone router 51, a broadband router 52, a gateway 53, an IP telephone network 61, An Internet 62, a PSTN network 63 (= Public Switched Telephone Network), and a subscriber telephone device 71 are configured.
The cordless telephone apparatus of the present invention is a cordless telephone apparatus that can be connected to an IP communication network, and corresponds to the parent device 1 and the plurality of child devices 2 (child devices A2a to C2c) in the figure. The base unit 1 is an IP telephone device capable of voice communication via a telephone network by being connected to the wired LAN 41. The base unit 1 has a relay function for relaying communication between the wired LAN 41 and the wireless communication network 42. Accordingly, the slave unit 2 described later can perform a call via the IP telephone network 61 or the PSTN network 63 by relaying the master unit 1. The base unit 1 also has a function of receiving an emergency self-breaking report distributed by the Japan Meteorological Agency via the Internet 62. The details of the internal structure of base unit 1 will be described later.

  The handset 2 is connected to a wireless communication network 42, which will be described later, and communicates with the base unit 1 so that the handset 2 can perform voice communication with other telephone devices via the IP telephone network 61 and the PSTN network 63. It is a communication device. The details of the internal configuration of the slave unit 2 will be described later.

  The wired LAN 41 is a local network in which the parent device 1, the IP telephone router 51, the broadband router 52, the gateway 53, and the like are connected by wire. Each of the above devices can communicate with each other by being connected to the wired LAN 41. Examples of physical means constituting the wired LAN 41 include 10BASE-T (standardized as IEEE802.3i) and 100BASE-TX (standardized as IEEE802.3u) using a twisted pair cable.

The wireless communication network 42 is a small-scale communication network in which the parent device 1 and the plurality of child devices 2 are wirelessly connected. Specifically, for example, communication is performed using a communication system based on FHSS-WDCT (Frequency Hopping Spread Spectrum-Worldwide Digital Cordless Telephone) using radio waves in a frequency band of 2.4 GHz (gigahertz).
The IP telephone router 51 and the broadband router 52 are network relay devices for interconnecting a plurality of IP networks. Specifically, the transfer is performed by analyzing a part of the protocol of the network layer (third layer) and the transport layer (fourth layer) in the OSI (Open Systems Interconnection) reference model. In the present embodiment, the IP telephone router 51 has a role of connecting two IP networks of the wired LAN 41 and the IP telephone network 61 to each other. The broadband router 52 has a role of connecting two IP networks of the wired LAN 41 and the Internet 62 to each other.
The gateway 53 is a protocol converter for interconnecting networks having different protocol systems. For example, the gateway 53 connects the wired LAN 41 and the PSTN network 63 and performs signal conversion using a signaling protocol such as SIP, thereby enabling communication between both networks.
The IP telephone network 61 is a communication network using VoIP (Voice over Internet Protocol) technology for part or all of the telephone network, and FTTH (Fiber To The Home) and ADSL (Asymmetric Digital Subscriber) are used as communication lines. A so-called broadband line is used. Note that VoIP is a technique in which voice is compressed by various encoding methods, converted into packets, and transmitted in real time over an IP network. As a result, the IP telephone network 61 can provide a videophone service for transmitting and receiving images in addition to a voice call service.

The Internet 62 is a wide area communication network constructed by interconnecting networks based on communication protocols. An international communication network is constructed by interconnecting large and small computer networks. As a communication protocol, TCP / IP is mainly adopted as a standard protocol.
The PSTN network 63 is a general subscriber telephone line network. It is used to make a voice call by connecting a telephone device to the end and connecting to a communication partner by a circuit switching method. The subscriber telephone device 71 is a telephone device that allows a telephone subscriber to make a voice call with another subscriber telephone device or an IP telephone device using the PSTN network 63.
<2. About the internal structure of the main unit>
FIG. 2 is a block diagram showing the inside of the base unit 1 according to the first embodiment of the present invention. The base unit 1 is configured to include at least a control unit 11, a memory 12, a display unit 13, an input unit 14, a communication control unit 15, an antenna device 16, an audio signal processing unit 17, a speaker 18, and a microphone 19. .

  The control unit 11 is a central processing unit for performing overall control of communication control processing (voice data transmission / reception, outgoing call execution, incoming call detection, etc.) by controlling each unit of the base unit 1. In addition, the control unit 11 includes a breaking news reception unit 11a and an earthquake detection transmission unit 11b as functional units realized by executing a program on the arithmetic processing device provided in the control unit 11.

  The breaking news receiving unit 11a determines that an earthquake has been detected by receiving an emergency earthquake breaking news from the Internet 62 using the communication control unit 15. When the occurrence of an earthquake is detected, an earthquake detection notification is given to the next earthquake detection transmitter 11b. Further, based on the data included in the earthquake early warning and the area information recorded in the memory 12, the predicted seismic intensity and the predicted arrival time of the main motion in the area where the base unit 1 is installed are calculated. It is included in the earthquake detection notification and transmitted to the slave unit 2.

  The earthquake detection transmission unit 11 b transmits the detection notification given from the breaking news reception unit 11 a to the child device 2 using the communication control unit 15. In addition, the earthquake detection transmission part 11b performs detection notification transmission to the subunit | mobile_unit 2 whenever a detection notification is given by the bulletin reception part 11a.

  The memory 12 is a medium for temporarily recording various data held by the parent device 1, and is configured by, for example, a writable RAM (Random Access Memory). The memory 12 serves as a buffer memory for temporarily recording processing data when various control processes are performed by the control unit 11, instruction commands received from the user, and the like. In addition, it has a role of recording regional information for calculating the predicted seismic intensity and the predicted arrival time of main motion for each region.

  The display unit 13 displays various information (for example, a caller telephone number at the time of incoming call) held by the parent device 1 to the user. The display unit 13 uses, for example, a small display device that consumes less power, such as a liquid crystal panel.

  The input unit 14 is for a user to perform various operations (for example, input of a telephone number of a partner with whom a call is made) for performing communication using the parent device 1. The input unit 14 is usually composed of a plurality of buttons such as numeric buttons and redial buttons.

  The communication control unit 15 is a communication interface for connecting the parent device 1 to the wired LAN 41. The communication control unit 15 can perform incoming call processing, outgoing call processing, and the like in the IP telephone system by communicating with a call control server (not shown) connected to the wired LAN 41. In addition, the communication control unit 15 controls wireless communication via the wireless communication network 42 by the antenna device 16.

  The antenna device 16 is a wireless communication device for transmitting and receiving wireless communication radio waves to and from the handset 2. The antenna device 16 performs wireless communication in accordance with a predetermined communication standard, for example, a communication system conforming to FHSS-WDCT (Frequency Hopping Spread Spectrum-Worldwide Digital Cordless Telephone). Thereby, voice communication, data communication, etc. can be performed with the subunit | mobile_unit 2. FIG.

The audio signal processing unit 17 performs a decoding process on the audio data input by the communication control unit 15 and provides the audio signal to the speaker 18. The audio signal processing unit 17 performs predetermined encoding processing on the audio signal input from the microphone 19 to generate audio data, and supplies the audio data to the communication control unit 15. As a result, the audio data is transmitted to another telephone device connected through the wired LAN 41, the wireless communication network 42, the IP telephone network 61, or the like.
<3. About the internal structure of the slave unit>
FIG. 3 is a block diagram showing the inside of the handset 2 according to the first embodiment of the present invention. The subunit | mobile_unit 2 contains at least the control part 21, the memory 22, the display part 23, the input part 24, the communication control part 25, the antenna apparatus 26, the audio | voice signal processing part 27, the speaker 28, the microphone 29, the battery 31, and the illumination part 80. It is configured to include.

  The control unit 21 is a central processing unit for performing overall control of communication control processing (voice data transmission / reception, outgoing call execution, incoming call detection, etc.) by controlling each unit of the slave unit 2. Moreover, the control part 21 is provided with the earthquake detection receiving part 21a and the light emission amount adjustment part 21b as a function part implement | achieved by running a program on the arithmetic processing apparatus with which the control part 21 is provided.

  The earthquake detection receiving unit 21a determines whether or not various types of information received from the base unit 1 includes an emergency earthquake warning detection notification. And when it determines with the detection notification being included, the message | telegram which shows an earthquake detection is given to the light emission amount adjustment part 21b.

  The light emission amount adjusting unit 21b instructs the lighting unit 80 to turn on when a telegram indicating earthquake detection is given from the earthquake detection receiving unit 21a.

  The memory 22 is a medium for temporarily recording various data held by the child device 2, and is configured by, for example, a writable RAM (Random Access Memory). The memory 22 serves as a buffer memory for temporarily recording processing data when various control processes are performed by the control unit 21, instruction commands received from the user, and the like.

  The display unit 23 displays various kinds of information (for example, a caller telephone number at the time of incoming call) held by the handset 2 to the user. As the display unit 23, for example, a small and low power consumption display device such as a liquid crystal panel is used. A backlight is installed behind the LCD panel so that the display content can be confirmed even in a dark place.

  The input unit 24 is for a user to perform various operations (for example, input of a telephone number of a partner with whom a call is made) for performing communication using the handset 2. The input unit 24 is usually composed of a plurality of buttons such as numeric buttons and redial buttons. A light emitting member such as an LED is provided behind each button.

  The communication control unit 25 controls wireless communication by the antenna device 26. Thereby, the subunit | mobile_unit 2 can communicate with the main | base station 1 connected to wireless LAN42. Further, by performing communication with a call control server (not shown) via the base unit 1, it is possible to perform incoming call processing, outgoing call processing, and the like in the IP telephone system.

  Since the antenna device 26 to the microphone 29 have the same configuration as the antenna device 16 to the microphone 19 of the parent device 1, description thereof is omitted here.

  The battery 31 is supplied with electric power from an external power source (not shown) and temporarily stores the electric power. For example, a rechargeable alkaline battery or a lithium ion battery is used.

  The charging circuit 32 is a charging circuit for supplying power supplied from a charger (not shown) to the battery 31, and detects whether or not the voltage from the charger is applied to the charging terminal 33, The detection result is transmitted to the control unit 21.

The illumination unit 80 is an illumination device installed at the upper end of the surface of the slave unit 2. The illumination unit 80 is not lit during normal operation. Alternatively, it may be used as an incoming call notification lamp or the like. The illuminating unit 80 is lit with a predetermined light emission amount according to an instruction from the light emission amount adjusting unit 21b when the earthquake detection receiving unit 21a receives the detection notification of the earthquake early warning. In this embodiment, the light is turned on when the handset 2 is in a flashlight mode to be described later.
<3. External configuration of slave unit>
FIG. 5 is an external view showing the external appearance of the handset 2 according to the first embodiment of the present invention. 5A is an external view of the handset 2 viewed from the side, FIG. 5B is an external view of the handset 2 viewed from the front, and FIG. 5C is a view of the handset 2 viewed from the bottom. FIG.

As shown in FIG. 5, the subunit | mobile_unit 2 is provided with the display part 23, the input part 24, the antenna device 26, the speaker 28, the microphone 29, and the illumination part 80 in the front. Moreover, the battery 31 (not shown) and the charging terminal 33 which can be charged are provided in the bottom part. The input unit 24 includes a call key 241 and a numeric keypad 242.
<4. About the configuration of the lighting unit>
FIG. 6 is a perspective view showing an example of the internal structure of the illumination unit 80. The illumination unit 80 is configured to include at least a high-intensity LED 81, a reflection member 82, and a transparent member 83. The high-intensity LED 81 is a light emitting member used for an LED light or the like. Although the detailed specification and emission color of the high-intensity LED 81 are not particularly limited, it is desirable to use a white light LED because it is for illumination.

  The reflecting member 82 is a member for reflecting light rays made of aluminum foil or glass. The reflecting member 82 is used to reflect, out of the light beams emitted from the high-intensity LED 81, the light beam emitted in the main body direction (downward in the example shown in FIG. 6) of the child device 2 to the outside of the child device 2. .

The transparent member 83 is a protective member that prevents the two members from being exposed to the outside of the slave unit 2 by covering the high-intensity LED 81 and the reflection member 82. The transparent member 83 is made of, for example, a material such as plastic having a certain level of strength. In addition, the raw material which forms the reflection member 82 and the transparent member 83 is not limited above, In the range which does not deviate from the range of this invention, it can change suitably.
<5. Operation of this embodiment>
Here, operation | movement of the main | base station 1 and the subunit | mobile_unit 2 in 1st embodiment of this invention is demonstrated. FIG. 4 is a flowchart showing the operation of the handset 2. In step S110 of FIG. 4, when the control unit 21 detects a signal indicating that the voltage is applied from the charging circuit 32 to the charging terminal 33 to the non-applied state, the process proceeds to step S120. .

  In step S120, the control unit 21 controls the communication control unit 25 to transmit a signal indicating a wireless connection start request from the child device 2 to the parent device 1. Further, the communication control unit 25 starts counting for a predetermined time (for example, 4 seconds).

  In step S130, when the control unit 21 determines that the communication control unit 25 has received an ACK (acknowledge) signal, which is a response signal from the base unit 1, within the predetermined time started in step S120, the process proceeds to step S140. If not, the process proceeds to step S150.

  In step S140, the control unit 21 controls the communication control unit 25 to start wireless connection between the parent device 1 and the child device 2. Further, on the base unit 1 side, the control unit 21 controls the communication control unit 15 to connect the line and to establish a wireless connection state with the handset 2. Thereafter, when a telephone number is input on the handset 2 side, the input telephone number is sent to the line via the base unit 1, and dialing is performed.

On the other hand, in step S150, the control unit 21 is in a flashlight mode in which the illumination unit 80 is turned on. In this flashlight mode, lighting of the illumination unit 80 continues.
As a method for turning off the illumination unit 80 after the illumination unit 80 is turned on, the following method is given as an example. For example, the control unit 21 may be configured to start measuring a predetermined time simultaneously with the lighting of the lighting unit 80 and turn off the lighting unit 80 when the predetermined time has been measured, or the control unit 21 may be configured to charge the charging circuit. 20 may be configured to turn off the illumination unit 80 when a signal indicating a change from a non-charged state to a charged state is detected, or the control unit 21 may turn on the illumination unit 80 upon detecting a predetermined key operation. It is good also as a structure turned off. When the illumination unit 80 changes from lighting to extinguishing, the flashlight mode ends.

  As described above, in this embodiment, when the handset 2 changes from the charged state to the non-charged state, the handset 2 transmits a signal indicating a wireless connection start request to the base unit 1. Subsequently, when the child device 2 receives the ACK signal from the parent device 1, it determines that the parent device 1 is not in a power outage, and the parent device 1 and the child device 2 are in a wireless connection state. On the other hand, when the handset 2 does not receive the ACK signal from the base unit 1, it is determined that the base unit 1 is in a power failure state, and the illumination unit 80 is turned on.

  In addition, the change from the charged state to the non-charged state in step S110 of FIG. 3 is not only when the user picks up the handset 2 from the charger, but also from the charger when the handset 2 is placed on the charger. There is a case where the charging voltage is not applied to the machine 2, that is, a power failure state occurs.

  In the apparatus according to the present embodiment, the user can use the cordless telephone device as a normal cordless telephone device in a non-power failure state. On the other hand, when the power failure occurs, the user uses the handset 2 of the cordless telephone device as a flashlight. It is possible.

  In this embodiment, the cordless telephone apparatus including the parent machine and the child machine is used. However, the present invention can be similarly applied to a facsimile machine equipped with the function of the cordless telephone apparatus.

  Furthermore, the wireless connection method between the parent device 1 and the child device 2 may be an analog method or a digital method. When carrying out the present embodiment, a configuration for transmitting a signal indicating a wireless connection start request from the slave unit 1 to the master unit 2 and a configuration for transmitting an ACK signal from the master unit 2 to the slave unit 1 Those skilled in the art can easily implement both analog and digital methods.

  In the present embodiment, a signal indicating a wireless connection start request is transmitted from the child device 1 to the parent device 2, but a signal for confirming whether or not the wireless connection from the child device 1 to the parent device 2 is possible. If it is, it will not be limited to this.

These are block diagrams which show the structure of the telephone system of this invention. These are block diagrams which show the structure of the main | base station 1 of the communication apparatus of this invention. These are block diagrams which show the structure of the subunit | mobile_unit 2 of the communication apparatus of this invention. These are the flowcharts which show operation | movement of a present Example apparatus. These are external views which show the external appearance of the subunit | mobile_unit of this invention. These are perspective views which show the structure of the illumination part 80 with which the subunit | mobile_unit of this invention is provided.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Main | base station 11a Bulletin receiving part 11b Earthquake detection transmission part 15 Communication control part 16 Antenna apparatus 2 Slave unit 21a Earthquake detection reception part 21b Light emission amount adjustment part 25 Communication control part 26 Antenna apparatus 80 Illumination part 81 High-intensity LED
82 Reflecting member 83 Transparent member 241 Call key

Claims (5)

It is a cordless phone unit that consists of a master unit and a slave unit.
The slave unit transmits a radio signal to the master unit when it changes from a charged state to a non-charged state, and shifts to a flashlight mode if a response signal is not received from the master unit. Cordless phone unit. It is a cordless phone unit that consists of a master unit and a slave unit.
When the slave unit changes from a charged state to a non-charged state, it transmits a radio signal to the master unit, and if it does not receive a response signal from the master unit, shifts to a state in which the white LED is turned on. A cordless telephone device slave unit. It is a cordless phone unit that consists of a master unit and a slave unit.
The slave unit includes a battery, a charge detection unit that detects whether the battery is in a charged state, a transmission / reception unit that transmits and receives radio signals to and from the master unit, a light emitting unit, and a control unit. And
When the control unit determines that the charge detection unit detects that the battery has changed from a charged state to a non-charged state, the control unit controls the transmitting / receiving unit to transmit a radio signal to the master unit and A cordless telephone characterized by starting time measurement and causing the light emitting unit to emit light when the transmitter / receiver determines that it has not received a reply wireless signal from the base unit by the end of the predetermined time. Device handset. It is a cordless handset of the cordless telephone device according to claim 3,
The cordless telephone device slave unit, wherein the control unit automatically turns off the light emitting unit when a predetermined time elapses after the light emitting unit is turned on. It is a cordless handset of the cordless telephone device according to claim 3,
If the control unit determines that the transmitter / receiver is wirelessly connected to the base unit after the light-emitting unit is turned on, the control unit turns off the light-emitting unit.

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