Patent Publication Number: US-2022239984-A1

Title: Portable terminal device, television receiver, and incoming call notification method

Description:
CROSS REFERENCE 
     This application is a Continuation of U.S. patent application Ser. No. 16/335,486, filed on Mar. 21, 2019, which is a U.S. National Phase under 35 U.S.C. § 371 of International Application No. PCT/JP2016/077930, filed on Sep. 23, 2016 the entire content of which is hereby incorporated by reference. 
    
    
     TECHNICAL FIELD 
     The present invention relates to a portable terminal device, a television receiver, and an incoming call notification method. 
     BACKGROUND ART 
     A technique has been proposed which, in a case where a portable terminal device, such as a mobile phone device, receives a phone call or mail, displays information indicating that the phone call has been received on a television receiver. 
     For example, Patent Document 1 discloses the following configuration: “in a case where a fixed phone or a portable phone receives a phone call, phone number information including at least a calling phone number, which is the other party of the phone that has received the phone call, is acquired from the fixed phone or the portable phone that has received the phone call through a communication interface unit; notification information for notifying that a phone call including at least the calling telephone number included in the phone number information is edited into a display format which can be displayed on a television screen of a television receiver and is transmitted as incoming call notification information to the television set through a host interface unit; and the incoming call notification information is displayed on the television screen”. 
     In addition, Patent Document 2 discloses the following configuration: a portable terminal device that is being charged includes “a transmitting/receiving means that is connected to at least a mobile telephone network so as to communicate with the mobile telephone network, a secondary battery charging means, a detection means for detecting a charging state, an information display means, and a local communication means for communicating with an external local communication device; in a case where the portable terminal device is connected to the local communication device so as to communicate with the local communication device at the time of the charging of a secondary battery, the portable terminal device notifies the user of a received phone call through the transmitting/receiving means, the content of the received phone call, and the charging state of the secondary battery; and in a case where there is an instruction not to display information on the display means, the display of the received phone call on the display means is not performed”. 
     CITATION LIST 
     Patent Document 
     
         
         Patent Document 1: JP 2012-142664 A 
         Patent Document 2: JP 2013-145947 A 
       
    
     SUMMARY OF THE INVENTION 
     Problems to be Solved by the Invention 
     A portable terminal device, such as a mobile phone device, is connected to an adapter (charging device) for charging a battery in a wired manner or wirelessly and is charged. Since the adapter for charging is connected to a receptacle and is then used, the portable terminal device is also placed close to the receptacle and is separated from the user&#39;s hands for a charging period. Charging takes several tens of minutes. In a case where the user watches the television during that time, the user may not hear the phone ringing even if a phone call or mail is received from another person. 
     In a case where a plurality of persons, such as family or friends, watch the television receiver simultaneously and the information of the portable terminal device which has received a phone call and the information of a caller who is the other party of the portable terminal device are displayed on the screen as in Patent Document 1, there is a problem that the privacy of the user of the portable terminal device which has received the call is not protected. 
     Further, in Patent Document 2, the phone call received by the portable terminal device, the content of the received phone call, and the charging state of the secondary battery are transmitted to the external communication device. The content of the received phone call can be prevented from being displayed on the display means of the portable terminal device, but is displayed on the external communication device. Here, in a case where the external communication device is a television receiver, there is a problem that the privacy of the user is not protected. 
     In view of the above-mentioned problems, an object of the invention is provide a portable terminal device, a television receiver, and an incoming call notification method that protect the privacy of a user in a case where information of a phone call received by the portable terminal device is notified to the television receiver and is then displayed. 
     Solutions to Problems 
     A technique disclosed in the claims is used as a means for solving the problems. For example, there is provided a portable terminal device that notifies a television receiver of a received phone call or mail. The portable terminal device includes: a communication unit that receives a phone call or mail and communicates with the television receiver; a notification execution unit that performs control in a case where information of the phone call or the mail received by the communication unit is notified to the television receiver; and a posture detection execution unit that detects a posture of the portable terminal device. In a case where the communication unit receives a phone call or mail, the notification execution unit changes content of the information of the received phone call or mail according to a detection result of the posture detection execution unit and notifies the television receiver of the changed content. 
     Effects of the Invention 
     According to the invention, it is possible to protect the privacy of a user of the portable terminal device in a case where information of a phone call received by the portable terminal device is notified to the television receiver and is then displayed. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
         FIG. 1  is a diagram illustrating an example of the configuration of an incoming call notification system including a television receiver and a portable terminal device (Embodiment 1). 
         FIG. 2A  is a block diagram illustrating an example of the configuration of a television receiver  1 . 
         FIG. 2B  is a diagram illustrating an example of the software configuration of the television receiver  1 . 
         FIG. 3A  is a block diagram illustrating an example of the configuration of a portable terminal device  2 . 
         FIG. 3B  is a diagram illustrating an example of the software configuration of the portable terminal device  2 . 
         FIG. 4  is a diagram illustrating an example of the outward appearance of the portable terminal device  2 . 
         FIG. 5  is a flowchart illustrating an example of a charging and incoming call notification operation of the portable terminal device  2 . 
         FIG. 6  is a diagram illustrating an example in which a charging state of the portable terminal device  2  is displayed on the television receiver  1 . 
         FIG. 7  is a flowchart illustrating the details of a privacy protection mode check process (S 105 ) in  FIG. 5 . 
         FIG. 8  is a diagram illustrating an example of a relationship between the posture of the portable terminal device  2  and a privacy protection mode. 
         FIG. 9  is a diagram illustrating another example of the relationship between the posture of the portable terminal device  2  and the privacy protection mode. 
         FIG. 10  is a flowchart illustrating the details of an incoming call notification process (S 109 ) in  FIG. 5 . 
         FIG. 11  is a diagram illustrating an example in which the notification of a received call by the portable terminal device  2  is displayed on the television receiver  1 . 
         FIG. 12  is a diagram illustrating an example in which the notification of a received call by the portable terminal device  2  is displayed on the portable terminal device  2 . 
         FIG. 13A  is a block diagram illustrating an example of the configuration of a television receiver  1  (Embodiment 2). 
         FIG. 13B  is a diagram illustrating an example of the software configuration of the television receiver  1 . 
         FIG. 14  is a flowchart illustrating an example of a notification operation of the television receiver  1 . 
         FIG. 15  is a diagram illustrating an example of the software configuration of a television receiver  1  (Embodiment 3). 
         FIG. 16  is a flowchart illustrating an example of a notification/call operation of the television receiver  1 . 
         FIG. 17  is a diagram illustrating an example in which the notification of a received call by the portable terminal device  2  is displayed on the television receiver  1 . 
         FIG. 18A  is a diagram illustrating an example in which mail is displayed by the television receiver  1 . 
         FIG. 18B  is a diagram illustrating an example in which a voice call is made by the television receiver  1 . 
         FIG. 18C  is a diagram illustrating an example in which a video call is made by the television receiver  1 . 
     
    
    
     MODE FOR CARRYING OUT THE INVENTION 
     Hereinafter, examples of embodiments of the invention will be described with reference to the drawings. 
     Embodiment 1 
       FIG. 1  is a diagram illustrating an example of the configuration of an incoming call notification system including a television receiver and a portable terminal device. The incoming call notification system includes a television receiver  1 , two portable terminal devices  2   a  and  2   b , two charging devices  3   a  and  3   b , a wide-area public network  4 , such as the Internet, a router  5 , and a base station  6  of a mobile telephone network. The system notifies the cooperating television receiver  1  of the information of a phone call or mail received by the portable terminal devices  2   a  and  2   b  such that the information is displayed on the television receiver  1 . In addition, the number of portable terminal devices  2  is not limited thereto and any number of portable terminal devices  2  may be provided. 
       FIG. 2A  is a block diagram illustrating an example of the configuration of the television receiver  1 . The television receiver  1  includes a system bus  100 , a main control unit  101 , a read only memory (ROM)  102 , a random access memory (RAM)  103 , a storage unit  104 , an external interface  105 , a communication unit  106 , an operation unit  107 , a broadcast receiving unit  108 , a video processing unit  109 , and a voice processing unit  110 . The television receiver  1  may be, for example, a recording/reproduction device having a function of recording and reproducing a broadcast program or a cable television set-top box. 
     The system bus  100  is a data communication path for transmitting and receiving data between the main control unit  101  and each unit of the television receiver  1 . The main control unit  101  is a microprocessor unit that controls the overall operation of the television receiver  1  according to a predetermined program. 
     The ROM  102  is a memory that stores a basic operation program, such as an operating system, and other application programs and is, for example, a rewritable ROM, such as an electrically erasable programmable ROM (EEPROM) or a flash ROM. It is assumed that the program stored in the ROM  102  is updated to increase the version of the basic operation program or other application programs or to extend the functions of the programs. 
     The RAM  103  functions as a work area in a case where the basic operation program or other application programs are executed. The ROM  102  and the RAM  103  may be integrated with the main control unit  101 . In addition, the ROM  102  may not be independently configured as illustrated in  FIG. 2A  and a partial storage area of the storage unit  104  may be used as the ROM  102 . Further, it is assumed that the RAM  103  has a temporary storage area which temporarily stores data if necessary in a case where the basic operation program or various application programs are executed. 
     The storage unit  104  stores information or data such as each operation setting value of the television receiver  1 . In addition, it is assumed that the television receiver  1  can download a new application program from an application server (not illustrated) through the Internet  4  and the router  5  to extend the functions. At that time, the downloaded new application program is stored in the storage unit  104 . The main control unit  101  expands the new application program stored in the storage unit  104  in the RAM  103  and executes the expanded new application program. In this way, the television receiver  1  can implement various new functions. 
     All or some of the functions of the ROM  102  may be replaced by a partial area of the storage unit  104 . In addition, the storage unit  104  needs to hold the stored information even in a state in which no power is supplied to the television receiver  1 . Therefore, a device, such as a flash ROM, a solid state drive (SSD), or a hard disk drive (HDD), is used. 
     The external interface  105  is an interface group for extending the functions of the television receiver  1  and includes a video input interface  105   a , a voice input interface  105   b , and a universal serial bus (USB) interface  105   c  in this embodiment. The video input interface  105   a  and the voice input interface  105   b  input a video signal and a voice signal from an external video/voice output device. The USB interface  105   c  connects a USB device, such as a keyboard, or a memory card. For example, in a case where the television receiver  1  records a digital broadcast program on an external HDD device, the HDD device may be connected to the USB interface  105   c . In addition, the video input interface  105   a  and the voice input interface  105   b  may be configured to input a video and voice at the same time using High-Definition Multimedia Interface (HDMI (registered trademark)). 
     The communication unit  106  is connected to the router  5  by a wired LAN or a wireless LAN and includes a LAN communication unit  106   a  that transmits and receives information to and from the external network  4 , such as the Internet, and a near field communication unit  106   b  that transmits and receives information using near field communication, such as Bluetooth (registered trademark). In this embodiment, the communication unit  106  communicates with the external portable terminal device  2  ( 2   a  and  2   b ) through the near field communication unit  106   b.    
     The operation unit  107  is an instruction input unit that inputs an operation instruction to the television receiver  1  and includes an operation key  107   a  in which button switches are arranged and a remote controller receiving unit  107   b  that receives an infrared signal from the remote controller  120 . In addition, for example, a keyboard connected to the USB interface  105   c  is used to operate the television receiver  1 . Further, for example, a portable terminal device or other PCs connected through the communication unit  106  may be used to operate the television receiver  1 . 
     The broadcast receiving unit  108  includes a tuner  108   a , a separation unit  108   b , and a decoder unit  108   c . The tuner  108   a  extracts a signal of a channel selected by the user from broadcast waves received by an antenna (not illustrated) and demodulates a transport stream (TS) signal. The separation unit  108   b  separates the TS signal into packetized video data, voice data, and accompanying information data. The decoder unit  108   c  decodes the video data, the voice data, and the accompanying information data output from the separation unit  108   b . The video signal is output to the video processing unit  109  and the voice signal is output to the voice processing unit  110 . Service information (SI) including program information, such as the name, genre, and broadcasting start/end date and time of each program, is acquired from the accompanying information data. 
     The video processing unit  109  includes a video data processing unit  109   a  and a video display unit  109   b . For example, the video data processing unit  109   a  performs format conversion and a process of superimposing a menu or other on-screen display (OSD) data for the video data input from the decoder unit  108   c  or the video input interface  105   a , the video data received by the communication unit  106 , or the video data reproduced from the storage unit  104  if necessary. The video display unit  109   b  is a display device, such as a liquid crystal panel, and displays the video processed by the video data processing unit  109   a.    
     The voice processing unit  110  includes a voice data processing unit  110   a  and a voice output unit  110   b . The voice data processing unit  110   a  performs a process, such as format conversion, for the voice data input from the decoder unit  108   c  or the voice input interface  105   b , the voice data received by the communication unit  106 , or the voice data reproduced from the storage unit  104  if necessary. The voice output unit  110   b  is, for example, a speaker and outputs the voice processed by the voice data processing unit  110   a.    
       FIG. 2B  is a diagram illustrating an example of the software configuration of the television receiver  1  and illustrates the software configuration of the ROM  102 , the RAM  103 , and the storage unit  104 . 
     A basic operation program  102   a  and other operation programs are stored in the ROM  102 . A device cooperation program  104   a , a notification program  104   b , and other operation programs are stored in the storage unit  104 . In addition, the storage unit  104  has a various information/data storage area  104   c  and stores content information/data  104   c   1 , such as recording information and data of a television broadcast program or information and data of content, such as a video or voice acquired from the communication unit  106  through the Internet, cooperation device information  104   c   2  related to the portable terminal device  2  that transmits and receives information through the communication unit  106 , and other information/data. 
     The basic operation program  102   a  stored in the ROM  102  is expanded in the RAM  103 . In addition, the main control unit  101  executes the expanded basic operation program to implement a basic operation execution unit  103   a . Further, each of the device cooperation program  104   a  and the notification program  104   b  stored in the storage unit  104  is expanded in the RAM  103 . The main control unit  101  executes each of the expanded operation programs to implement a device cooperation execution unit  103   b  and a notification execution unit  103   c . In addition, the RAM  103  has a temporary storage area that temporarily stores data created in a case where each operation program is executed if necessary. 
     The device cooperation execution unit  103   b  performs a pairing process with the portable terminal device  2  that performs a cooperation operation and controls a transmitting/receiving operation for the portable terminal device  2 . In addition, the notification execution unit  103   c  performs control in a case where incoming call information received from the portable terminal device  2  is displayed on the video display unit  109   b.    
       FIG. 3A  is a block diagram illustrating an example of the configuration of the portable terminal device  2 . The portable terminal device  2  ( 2   a  and  2   b ) includes a system bus  200 , a main control unit  201 , a ROM  202 , a RAM  203 , a storage unit  204 , an operation unit  205 , an extended interface unit  206 , a sensor unit  207 , a video processing unit  208 , a voice processing unit  209 , a communication unit  210 , a power supply unit  211 , and a light emitting unit  212 . The portable terminal device  2  corresponds to a portable digital device having call and mail functions, such as a personal digital assistant (PDA) or a tablet personal computer (PC), in addition to a mobile phone or a smart phone. 
     The main control unit  201  is a microprocessor unit that controls the overall operation of the portable terminal device  2  according to a predetermined program. The system bus  200  is a data communication path for transmitting and receiving data between the main control unit  201  and each unit of the portable terminal device  2 . 
     The ROM  202  is a memory that stores a basic operation program, such as an operating system, and other application programs and is, for example, a rewritable ROM, such as an EEPROM or a flash ROM. It is assumed that the program stored in the ROM  202  is updated to increase the version of the basic operation program or other application programs or to extend the functions of the programs. 
     The RAM  203  functions as a work area in a case where the basic operation program or other application programs are executed. The ROM  202  and the RAM  203  may be integrated with the main control unit  201 . In addition, the ROM  202  may not be independently configured as illustrated in  FIG. 3M  and a partial storage area of the storage unit  204  may be used as the ROM  202 . Further, it is assumed that the RAM  203  has a temporary storage area which temporarily stores data if necessary in a case where the basic operation program or various application programs are executed. 
     The storage unit  204  has an area that stores application programs for implementing various functions of the portable terminal device  2 , such as a call function, a mail function, a Web browser function, and a map search function, various kinds of setting information of the portable terminal device  2 , and various kinds of setting information and data of each application. 
     All or some of the functions of the ROM  202  may be replaced by a partial area of the storage unit  204 . In addition, the storage unit  204  needs to hold the stored information even in a state in which no power is supplied to the portable terminal device  2 . Therefore, a device, such as a flash ROM, an SSD, or an HDD, is used. 
     The operation unit  205  is an instruction input unit that inputs an operation instruction to the portable terminal device  2  and includes a touch panel  205   t  that is provided so as to overlap a video display unit  208   a  and an operation key  205   k  in which button switches are arranged. 
     The extended interface unit  206  is an interface group for extending the functions of the portable terminal device  2  and it is assumed that the extended interface unit  206  is, for example, a USB interface or a memory interface. The USB interface connects a keyboard or other USB devices. The memory interface connects a memory card or other memory media to transmit and receive data. In addition, the USB interface is used to supply power for charging the battery  211   c.    
     The sensor unit  207  is a sensor group for detecting the state of the portable terminal device  2  and includes a global positioning system (GPS) receiving unit  207   a , an acceleration sensor  207   b , a gyro sensor  207   c , a geomagnetic sensor  207   d , an illuminance sensor  207   e , and a proximity sensor  207   f  in this embodiment. For example, the position, movement, inclination, and direction of the portable terminal device  2 , brightness around the portable terminal device  2 , and the proximity situation of surrounding objects can be detected by these sensor groups. In addition, the sensor unit  207  may include other sensors. The acceleration sensor  207   b  can detect acceleration in three axes, that is, the left-right direction (X-axis), the up-down direction (Y-axis), and the front-rear direction (Z-axis) of the portable terminal device  2  and can detect the inclination or posture of the portable terminal device  2 . 
     The video processing unit  208  includes the video display unit  208   a , a video data processing unit  208   b , a first imaging unit  208   c , and a second imaging unit  208   d . The video display unit  208   a  is a display device, such as a liquid crystal panel, and provides video data processed by the video data processing unit  208   b  to the user of the portable terminal device  2 . The video data processing unit  208   b  includes a video RAM (not illustrated) and the video display unit  208   a  is driven on the basis of video data input to the video RAM. In addition, it is assumed that the video data processing unit  208   b  has a function of performing, for example, format conversion and a process of superimposing a menu or other OSD data if necessary. 
     The first imaging unit  208   c  and the second imaging unit  208   d  are camera units using an electronic device, such as a charge coupled device (CCD) or a complementary metal oxide semiconductor (CMOS) sensor, and convert light input from a lens into an electric signal to acquire video data of surroundings or a target object. Here, the first and second imaging units acquire the videos of the front and rear sides of the portable terminal device  2 , respectively. In addition, the light emitting unit  212  is a flash for illumination in a case where the second imaging unit  208   d  captures images. 
     The voice processing unit  209  includes a voice output unit  209   a , a voice data processing unit  209   b , and a voice input unit  209   c . The voice output unit  209   a  is, for example, a speaker and provides voice data processed by the voice data processing unit  209   b  to the user of the portable terminal device  2 . The voice input unit  209   c  is a microphone, inputs, for example, the user&#39;s voice, and converts the voice into voice data. 
     The communication unit  210  includes a wireless LAN communication unit  210   a , a mobile telephone network communication unit  210   b , and a near field communication unit  210   c  using, for example, a Bluetooth (registered trademark) system. The wireless LAN communication unit  210   a  is connected to the router  5  by wireless communication and transmits and receives data. The mobile telephone network communication unit  210   b  performs telephone communication (call) and data transmission/reception using wireless communication with the base station  6  of the mobile telephone network. The near field communication unit  210   c  performs wireless communication with a cooperating device (television receiver  1 ). It is assumed that each of the wireless LAN communication unit  210   a , the mobile telephone network communication unit  210   b , and the near field communication unit  210   c  includes, for example, an encoding circuit, a decoding circuit, and an antenna. In addition, the communication unit  210  may include, for example, an infrared communication unit. 
     The power supply unit  211  includes a power supply control unit  211   a , a power receiving unit  211   b , and a battery  211   c . The power receiving unit  211   b  includes a power receiving coil  211   bl , a rectifier  211   b   2 , and a voltage conversion unit  211   b   3 . An induced current is generated in the power receiving coil  211   b   1  by magnetic coupling between a power transmitting coil (not illustrated) of the charging device  3  and the power receiving coil  211   b   1  of the power receiving unit and power is transmitted. For example, in a case where the generation of an induced current in the power receiving coil  211   b   1  is detected, the power supply control unit  211   a  can determine that the portable terminal device  2  has been placed in the chargeable range of the charging device  3 . The rectifier  211   b   2  rectifier the current induced in the power receiving coil  211   b   1  and the voltage conversion unit  211   b   3  converts the rectified current into a predetermined voltage. Then, the battery  211   c  is charged. For example, the power supply control unit  211   a  detects a charging current from the voltage conversion unit  211   b   3  to the battery  211   c  to detect a charging state. In a case where the charging current is equal to or less than a predetermined charging current, the power supply control unit  211   a  determines that the battery  211   c  has been fully charged and ends the charging of the battery  211   c  with the charging current from the voltage conversion unit  211   b   3  such that the battery  211   c  is not overcharged. 
       FIG. 3B  is a diagram illustrating an example of the software configuration of the portable terminal device  2  and illustrates the software configuration of the ROM  202 , the RAM  203 , and the storage unit  204 . 
     A basic operation program  202   a  and other operation programs are stored in the ROM  202 . A device cooperation program  204   a , a notification program  204   b , a charging management program  204   c , a posture detection program  204   d , and other operation programs are stored in the storage unit  204 . In addition, the storage unit  204  has a various information/data storage area  204   e  and stores content information/data  204   e   1  of a video or voice acquired from the communication unit  210  through the Internet, cooperation device information  204   e   2  related to a device (television receiver  1 ) that transmits and receives information through the communication unit  210 , and other information/data. 
     The basic operation program  202   a  stored in the ROM  202  is expanded in the RAM  203 . In addition, the main control unit  201  executes the expanded basic operation program to implement a basic operation execution unit  203   a . Further, each of the device cooperation program  204   a , the notification program  204   b , the charging management program  204   c , and the posture detection program  204   d  stored in the storage unit  204  is expanded in the RAM  203 . The main control unit  201  executes each of the expanded operation programs to implement a device cooperation execution unit  203   b , a notification execution unit  203   c , a charging management execution unit  203   d , and a posture detection execution unit  203   e . In addition, the RAM  203  has a temporary storage area that temporarily stores data created in a case where each operation program is executed if necessary. 
     The device cooperation execution unit  203   b  performs a pairing process with the television receiver  1  or the charging device  3  that performs a cooperation operation and controls a transmitting/receiving operation for the television receiver  1 . In addition, the notification execution unit  203   c  controls an operation of notifying the cooperating television receiver  1  of the information of a phone call or mail received through the communication unit  210 . The charging management execution unit  203   d  controls a charging operation of the charging device  3 . The posture detection execution unit  203   e  performs an operation of detecting the posture of the portable terminal device  2 . 
       FIG. 4  is a diagram illustrating an example of the outward appearance of the portable terminal device  2 . Here,  FIG. 4  illustrates an example in a case where the portable terminal device  2  is a smart phone. In  FIG. 4 , (a) illustrates the outward appearance of a front surface side (video display side) and (b) illustrates the outward appearance of a rear surface side. 
     For example, the video display unit  208   a  and the first imaging unit (camera)  208   c  are arranged on the front surface side in (a) and the second imaging unit (camera)  208   d  and the light emitting unit  212  are arranged on the rear surface side in (b). The touch panel  205   t  is integrated with the video display unit  208   a . In addition, the voice output unit (speaker)  209   a  is arranged in an upper part of the terminal and the voice input unit (microphone)  209   c  is arranged in a lower part of the terminal. A power key  205   k   1  is arranged on a side surface. The power key  205   k   1  is pressed for a predetermined period of time or more to turn on and off power. A home key  205   k   2  is used to display a basic operation screen on the video display unit  208   a . An icon M 4  corresponding to applications, such as a voice call and mail, executed by the portable terminal device  2  is displayed. In a state in which an application, such as a Web browser, is displayed, the home key  205   k   2  is pressed to switch the display of the basic operation screen. 
     Hereinafter, the operation of the portable terminal device  2  notifying the television receiver  1  of incoming call information will be described. In the operation, the television receiver  1  and the portable terminal device  2  cooperate with each other. It is highly likely that the portable terminal device  2  needs to notify the television receiver  1  of the incoming call information in a case where the portable terminal device  2  is separated from the user&#39;s hands for a charging operation. Therefore, the charging operation and the incoming call notification operation will be described below in association with each other. 
     In Embodiment 1, a privacy protection mode is set according to the posture of the portable terminal device  2  at the time of charging in order to protect the privacy of the user in the notification of an incoming call. For example, the portable terminal device  2  is placed with respect to the charging device  3  such that the video display unit  208   a  faces downward (the charging device  3 ) to turn on the privacy protection mode. In this case, the incoming call information notified from the portable terminal device  2  to the television receiver  1  is limited (for example, information related to the other party is removed) to protect the privacy of the user. 
       FIG. 5  is a flowchart illustrating an example of the charging and incoming call notification operation of the portable terminal device  2 . This process is mainly performed by the notification execution unit  203   c  and the charging management execution unit  203   d . Hereinafter, the process will be described step by step. 
     S 101 : It is determined whether or not the portable terminal device  2  has been placed in the chargeable range of the charging device  3  on the basis of whether or not the power supply control unit  211   a  of the power supply unit  211  has detected an induced current. In a case where the portable terminal device  2  is determined to be placed in the chargeable range (Yes), the process proceeds to S 102 . In a case where the portable terminal device  2  is determined not to be placed in the chargeable range (No), the process ends. 
     S 102 : It is determined whether or not the device cooperation execution unit  203   b  has completed a pairing process with the charging device  3 . In a case where pairing with the charging device  3  has been completed (Yes), the process proceeds to S 104 . In a case where pairing with the charging device  3  has not been completed (No), the process proceeds to S 103 . 
     S 103 : The device cooperation execution unit  203   b  performs a pairing process with the charging device  3  using, for example, a known method such as a method for inputting authentication numbers. 
     S 104 : The charging management execution unit  203   d  transmits a charging start instruction to the charging device  3 . Then, the charging device  3  controls the current of the power transmitting coil such that a predetermined induced current is generated in the power receiving coil  211   b   1  of the portable terminal device  2 . Then, charging device  3  starts charging. 
     S 105 : The portable terminal device  2  performs a process of checking whether “the privacy protection mode is turned on”. The term “privacy protection mode” is a mode in which, in a case where a call is received, the notification of the call to the television receiver  1  is limited, which will be described below. The details of S 105  will be described with reference to  FIG. 7 . 
     S 106 : It is determined whether or not the device cooperation execution unit  203   b  has completed a pairing process with the television receiver  1 . In a case where pairing with the television receiver  1  has been completed (Yes), the process proceeds to S 108 . In a case where pairing with the television receiver  1  has not been completed (No), the process proceeds to S 107 . 
     S 107 : The device cooperation execution unit  203   b  performs a pairing process with the television receiver  1  through the near field communication unit  210   c  using, for example, a known method such as a method for inputting authentication numbers. In addition, in a case where the television receiver  1  is turned off or is in a standby state in the pairing process (in a case where there is no response from the television receiver  1  at the time of the pairing process using near field communication), for example, a command corresponding to Wake on LAN (WOL) is transmitted from the wireless LAN communication unit  210   a  to the LAN communication unit  106   a  of the television receiver  1  to turn on the television receiver  1 . 
     S 108 : The mobile telephone network communication unit  210   b  receives radio waves from the base station  6  or the wireless LAN communication unit  210   a  receives radio waves from the router  5  and it is determined whether or not a call, such as a voice call, a video call using a video and voice, mail, or a social networking service (SNS), is received. In a case where there is an incoming call (Yes), the process proceeds to S 109 . In a case where there is no incoming call (No), the process proceeds to S 110 . 
     S 109 : The notification execution unit  203   c  performs an incoming call notification process corresponding to the privacy protection mode to notify the television receiver  1  subjected to the pairing process of incoming call information. The details of S 109  will be described with reference to  FIG. 10 . 
     S 110 : The power supply control unit  211   a  detects a charging current to detect a charging state and determines whether or not the portable terminal device  2  is in a fully charged state. In a case where the portable terminal device  2  is in the fully charged state (Yes), the process proceeds to S 113 . In a case where the portable terminal device  2  is not in the fully charged state (No), the process proceeds to S 111 . 
     S 111 : It is determined whether or not the portable terminal device  2  has been moved from the chargeable range of the charging device  3 . In a case where the movement is detected (Yes), the process proceeds to S 112 . In a case where the movement is not detected (No), the process returns to S 108 . Whether or not the portable terminal device  2  has been moved from the chargeable range of the charging device  3  is determined by, for example, detecting the output of the acceleration sensor  207   b  or by detecting an induced current generated in the power receiving coil  211   bl.    
     S 112 : The notification execution unit  203   c  notifies the television receiver  1  subjected to the pairing process that the portable terminal device  2  has been moved from the chargeable range of the charging device  3 . The charging operation of the charging management execution unit  203   d  ends. 
       FIG. 6  is a diagram illustrating an example in which the charging state of the portable terminal device  2  is displayed on the television receiver  1 . In a case where the notification process in S 112  is received, the television receiver  1  displays the information of the portable terminal device  2  whose movement has been detected and a message M 6   a  indicating that the portable terminal device  2  has been moved on the video display unit  109   b . With this configuration, it is possible to know that the portable terminal device  2  has been moved from the chargeable range of the charging device  3  even in a case where the portable terminal device  2  has been moved, without the intention of the user, before the portable terminal device  2  is fully charged. 
     S 113 : It is determined whether or not the charging device  3  and the television receiver  1  subjected to the pairing process have been notified that the portable terminal device  2  is in a fully charged state. In a case where the charging device  3  and the television receiver  1  have been notified (Yes), the process proceeds to S 116 . In a case where the charging device  3  and the television receiver  1  have not been notified (No), the process proceeds to S 114 . 
     S 114 : The charging management execution unit  203   d  transmits a charging end instruction to the charging device  3 . Then, the charging device  3  sets the current of the power transmitting coil to be equal to or less than a predetermined current and ends charging. 
     S 115 : The notification execution unit  203   c  notifies the television receiver  1  subjected to the pairing process that charging has been completed. 
     For example, as illustrated in  FIG. 6 , the television receiver  1  displays a message M 6   b  for notifying the information of the portable terminal device  2  whose charging has been completed on the video display unit  109   b  on the basis of the notification in S 115 . 
     S 116 : It is determined whether or not the portable terminal device  2  has been moved from the chargeable range of the charging device  3 . In a case where the movement is detected (Yes), the charging operation of the charging management execution unit  203   d  ends. In a case where the movement is detected (No), the process returns to S 108 . Then, the above-mentioned process is repeated. Therefore, in a case where a call received in a state in which the portable terminal device  2  is placed within the chargeable range of the charging device  3  after charging is completed, it is possible to notify the television receiver  1  that a call has been received. 
     Next, privacy protection in incoming call notification will be described in detail. 
       FIG. 7  is a flowchart illustrating the details of the privacy protection mode check process (S 105 ) in  FIG. 5 . Here, it is assumed that the posture detection execution unit  203   e  detects the posture of the portable terminal device  2  using the acceleration sensor  207   b  to check the privacy protection mode. 
       FIG. 8  is a diagram illustrating an example of the relationship between the posture of the portable terminal device  2  and the privacy protection mode. That is, as illustrated in (a), the privacy protection mode is turned off at the posture where the portable terminal device  2  is placed with respect to the charging device  3  such that the video display unit  208   a  faces upward. In contrast, as illustrated in (b), the privacy protection mode is turned on at the posture where the portable terminal device  2  is placed with respect to the charging device  3  such that the video display unit  208   a  faces downward. Hereinafter, the flow of  FIG. 7  will be described step by step. 
     S 201 : The acceleration sensor  207   b  detects posture data of the portable terminal device  2 . The acceleration sensor  207   b  can acquire acceleration (gravity acceleration) data in three axes, that is, the left-right direction (X-axis), the up-down direction (Y-axis), and the front-rear direction (Z-axis) of the portable terminal device  2  illustrated in  FIG. 8 . 
     S 202 : The posture of the portable terminal device  2  with respect to the charging device  3  is determined from the acquired data of the acceleration sensor  207   b . Specifically, in a case where the charging device  3  is horizontally provided (in the XY plane), it is possible to determine whether the video display unit  208   a  faces upward or downward with respect to the charging device  3  on the basis of acceleration data in the Z-axis direction. 
     S 203 : A branch process is performed on the basis of the determined direction of the video display unit  208   a . In a case where the video display unit  208   a  faces upward, the process proceeds to S 204 . In a case where the video display unit  208   a  faces downward, the process proceeds to S 205 . 
     S 204 : The privacy protection mode is turned off and the process ends. 
     S 205 : The privacy protection mode is turned on and the process ends. 
     As described above, in a case where the user places the portable terminal device  2  on the charging device  3 , the user can easily set the turn-on and turn-off of the privacy protection mode by selecting whether to place the portable terminal device  2  such that the video display unit  208   a  faces upward or downward. 
     In the example illustrated in  FIG. 8 , the charging device  3  is horizontally provided and the acceleration data of the portable terminal device  2  in the front-rear direction (Z-axis) is detected. However, the invention is not limited thereto. 
       FIG. 9  is a diagram illustrating another example of the relationship between the posture of the portable terminal device  2  and the privacy protection mode. Here, charging is performed with the charging device  3  and the portable terminal device  2  standing upright. In a case where the portable terminal device  2  is in an upright state (the voice output unit  209   a  is on the upper side) as illustrated in (a), the privacy protection mode is turned off, without depending on the direction of the video display unit  208   a . In addition, in a case where the portable terminal device  2  is in an inverted state (the voice output unit  209   a  is on the lower side), the privacy protection mode is turned on. Acceleration data in the up-down direction (Y-axis) may be used to determine the posture. 
     Further, the voice output unit  209   a  may output a voice message “Notify that the privacy protection mode has been turned on” or a message indicating a set state may be displayed on the video display unit  208   a  such that the user can check whether or not the privacy protection mode has been set as intended by the user. 
       FIG. 10  is a flowchart illustrating the details of the incoming call notification process (S 109 ) in  FIG. 5 . Here, the content of the notification to the television receiver  1  and the content of the incoming call displayed on the video display unit  208   a  of the portable terminal device  2  are changed according to the privacy protection mode checked by the privacy protection mode check process (S 105 ). Hereinafter, the process will be described step by step. 
     S 301 : A branch process is performed according to the privacy protection mode checked by the privacy protection mode check process S 105 . In a case where the privacy protection mode is turned off, the process proceeds to S 302 . In a case where the privacy protection mode is turned on, the process proceeds to S 304 . 
     S 302 : The notification execution unit  203   c  notifies the television receiver  1  subjected to the pairing process of the type of incoming call (for example, the reception of a voice call, the reception of a video call using a video and voice, mail, or SNS) and the information of the other party (for example, the registered name, phone number, or mail address of the other party) as the incoming call information. 
       FIG. 11  is a diagram illustrating an example in which the notification of a received call by the portable terminal device  2  is displayed on the television receiver  1 . 
     In the television receiver  1 , a message M 11   a  indicating the information (for example, the name of the user of the terminal or the name of the terminal) of the portable terminal device  2  that has transmitted the notification, the information of the other party, and the type of incoming call is displayed on the video display unit  109   b  on the basis of the notification in S 302 . 
     S 303 : In contrast, as illustrated in the example of  FIG. 12 , a message M 12   a  indicating the type of incoming call (for example, the reception of a voice call, the reception of a video call using a video and voice, mail, or SNS) and the other party is displayed on the video display unit  208   a  of the portable terminal device  2  and the process ends. 
     S 304 : The notification execution unit  203   c  notifies the television receiver  1  subjected to the pairing process of the information of the type of incoming call as the incoming call information. 
     In the television receiver  1 , as illustrated in  FIG. 11 , a message M 11   b  indicating the information of the portable terminal device  2  that has transmitted the notification and the type of incoming call is displayed on the video display unit  109   b  on the basis of the notification in S 304 . In the message M 11   b , the information of the other party included in the message M 11   a  is removed. 
     S 305 : In contrast, as illustrated in the example of  FIG. 12 , a message M 12   b  indicating the type of incoming call is displayed on the video display unit  208   a  of the portable terminal device  2  and the process ends. In the message M 12   b , the information of the other party included in the message M 12   a  is removed. 
     In addition, the information of the type of incoming call may be the information of a received application, such as an application corresponding to a phone call, an application corresponding to mail, or a video call application, in the portable terminal device  2 . 
     As described above, in Embodiment 1, the privacy protection mode is set according to the posture of the portable terminal device  2  and information related to an incoming call to be notified to the television receiver  1  is changed according to the setting of the privacy protection mode. Therefore, it is possible to check a call received by the portable terminal device  2  at the time of charging, using the television receiver  1 , while ensuring the privacy of the user. 
     The following are possible as modification examples of Embodiment 1. 
     Modification Example 1-1 
     In Embodiment 1, the posture detection execution unit  203   e  detects the posture of the portable terminal device  2  on the basis of the output of the acceleration sensor  207   b  illustrated in  FIG. 7 . However, the invention is not limited thereto and the posture of the portable terminal device  2  may be detected by other methods. 
     For example, as illustrated in  FIG. 4 , the first imaging unit (camera)  208   c  or the second imaging unit (camera)  208   d  of the portable terminal device  2  may acquire a video and the posture may be detected on the basis of the brightness of the acquired video. That is, in a case where the portable terminal device  2  is placed on the charging device  3  as illustrated in  FIG. 8( a ) , a video acquired by the second imaging unit  208   d  on the rear surface side is dark. In a case where the portable terminal device  2  is placed on the charging device  3  as illustrated in  FIG. 8( b ) , a video acquired by the first imaging unit  208   c  is dark. In this way, it is possible to detect the posture. In addition, the brightness levels of both videos acquired by the first imaging unit  208   c  and the second imaging unit  208   d  may be compared to detect the posture. 
     In addition, for example, in a dark room, since both videos of the first and second imaging units  208   c  and  208   d  are dark, an error is likely to occur in posture detection. Therefore, in a case where a video is acquired by the second imaging unit  208   d , the light emitting unit  212  provided on the same side may emit light. Alternatively, in a case where a video is acquired by the first imaging unit  208   c , the video display unit  208   a  on the same side may emit light with a predetermined bright level or higher. 
     Further, the illuminance sensor  207   e  or the proximity sensor  207   f  may be provided on the front surface of the portable terminal device  2  and the posture may be detected on the basis of the detected illuminance or distance. In addition, the detection results of a plurality of sensors may be combined with each other to detect the posture. 
     Modification Example 1-2 
     In Embodiment 1, as illustrated in  FIG. 10 , in a case where the privacy protection mode is turned on, the information of the calling party is not notified to the television receiver  1 . However, the invention is not limited thereto. For example, in a case where the privacy protection mode is turned on and a phone call (voice, or a video and voice) is received, the portable terminal device  2  may perform the same operation as an answering machine and may not notify the television receiver  1  of the received phone call. In addition, at that time, the portable terminal device  2  may be switched to the operation of the answering machine at the point of time when the number of calls is smaller than usual. 
     Embodiment 2 
     In Embodiment 2, the display of information related to the call received by a portable terminal device  2  is changed according to whether or not there is a person other than the user of the portable terminal device  2  which has notified a television receiver  1  of the reception of the call around the television receiver  1 . That is, in Embodiment 2, the television receiver  1  controls privacy protection. 
       FIG. 13A  is a block diagram illustrating an example of the configuration of the television receiver  1  according to Embodiment 2. In addition,  FIG. 13B  is a diagram illustrating an example of the software configuration of the television receiver  1  according to Embodiment 2. The configurations illustrated in  FIGS. 13A and 13B  are basically the same as the configurations illustrated in  FIGS. 2A and 2B  in Embodiment 1. Hereinafter, configuration parts different from those in Embodiment 1 will be described. 
     In  FIG. 13A , an imaging unit (camera)  109   c  and a voice input unit (microphone)  110   c  are newly added. The imaging unit  109   c  converts light input from a lens into an electric signal using an electronic device, such as a CCD or a CMOS sensor, and inputs video data of surroundings or a target object. Then, a video of, for example, persons around the television receiver  1  is acquired and input to the video data processing unit  109   a . In addition, the imaging unit  109   c  may be provided separately from the television receiver  1  and video data may be input (received) by the video input interface  105   a  or the communication unit  106 . 
     The voice input unit  110   c  receives the voice of the person around the television receiver  1  and outputs the voice to the voice data processing unit  110   a . In addition, the voice input unit  110   c  may be provided separately from the television receiver  1  and voice data may be input (received) by the voice input interface  105   b  or the communication unit  106 . 
     In  FIG. 13B , a user recognition program  104   d  is newly stored in the storage unit  104 . The program is expanded in the RAM  103  and the main control unit  101  executes the program to implement a user recognition execution unit  103   d . In addition, user information/data  104   c   3  is stored in a various information/data storage area  104   c  of the storage unit  104  and includes, for example, the registered name of the user, the information of the portable terminal device associated with the user, and face information of the user. The user recognition execution unit  103   d  performs an operation of recognizing the user on the basis of the video data captured by the imaging unit  109   c  and the face information of the user information/data  104   c   3 . 
     In addition, the configuration of the portable terminal device  2  according to Embodiment 2 is similar to that in Embodiment 1 except an operation of notifying the television receiver  1  of an incoming call. In Embodiment 2, it is assumed that the privacy protection mode check process (S 105 ) is not performed in the flowchart illustrating the charging/incoming call notification operation in  FIG. 5 . Further, in the branch process (S 301 ) by the privacy protection mode in the flowchart illustrating the incoming call notification process (S 109 ) in  FIG. 10 , in a case where the privacy protection mode is turned off, at least the type of incoming call and the information of the other party (the registered name, phone number, or mail address of the other party) are notified as incoming call information to the television receiver  1  subjected to a pairing process. This is because the television receiver  1  protects the privacy of the user. 
     Next, a new notification operation of the television receiver  1  according to Embodiment 2 will be described. 
       FIG. 14  is a flowchart illustrating an example of the notification operation of the television receiver  1 . This process is mainly performed by the notification execution unit  103   c  and the user recognition execution unit  103   d . Hereinafter, the process will be described step by step. 
     S 401 : The communication unit  106  of the television receiver  1  receives a notification including the type of incoming call and the information of the other party from the portable information terminal  2 . 
     S 402 : The imaging unit  109   c  acquires a video of, for example, the user around the television receiver  1 . 
     S 403 : The user recognition execution unit  103   d  recognizes persons around the television receiver  1  on the basis of the video acquired in S 402  and the user information/data  104   c   3  of the storage unit  104 . 
     S 404 : It is determined whether or not the persons around the television receiver  1  recognized in S 403  include the user of the portable terminal device (terminal)  2  from which the notification has been received in S 401 . In a case where the persons include the user of the terminal from which the notification has been received (Yes), the process proceeds to S 405 . In a case where the persons do include the user of the terminal from which the notification has been received (No), the process ends and the television receiver  1  does not perform the notification operation. 
     S 405 : It is determined whether or not the person around the television receiver  1  recognized in S 403  is only the user of the terminal from which the notification has been received, that is, whether or not there is a person other than the user of the terminal from which the notification has been received. In a case where the person is only the user of the terminal from which the notification has been received (Yes), the process proceeds to S 406 . In a case where there is a person other than the user of the terminal from which the notification has been received (No), the process proceeds to S 407 . 
     S 406 : As illustrated in the message M 11   a  of  FIG. 11 , the information (for example, the name of the user of the terminal or the name of the terminal) of the portable terminal device  2  from which the notification has been received, the type of incoming call, and the information of the other party are displayed on the video display unit  109   b  and the process ends. 
     S 407 : As illustrated in the message M 11   b  of  FIG. 11 , the information of the portable terminal device  2  from which the notification has been received and the received type of incoming call are displayed on the video display unit  109   b  and the process ends. Here, the information of the other party is not displayed. 
     As described above, in Embodiment 2, in a case where the television receiver  1  is notified of the reception of an incoming call by the portable terminal device  2 , the television receiver  1  determines whether or not the user of the portable terminal device  2  is present around the television receiver  1  and whether or not there is a person other than the user, on the basis of the captured video. Then, in a case where the user of the terminal is absent, incoming call information is not displayed. In a case where there is another user other than the user of the terminal, the information of the other party (for example, the registered name, telephone number, and mail address of the other party), is not displayed. Therefore, it is possible to check an incoming call while ensuring the privacy of the user. 
     In addition, in a case where there are a plurality of television receivers  1 , the portable terminal device  2  may notify all of the television receivers of the reception of an incoming call. In this case, each television receiver can perform user recognition and only the television receiver which has recognized the user of the portable terminal device  2  notified the incoming call can display incoming call information. 
     Embodiment 3 
     In Embodiment 3, after incoming call information from the portable terminal device  2  is displayed on the video display unit  109   b  of the television receiver  1 , a phone call or mail with the other party is displayed by the television receiver  1 . It is assumed that, for the display of the incoming call information by the television receiver  1 , the privacy protection described in Embodiment 1 or Embodiment 2 is performed. 
     The configuration of the television receiver  1  according to Embodiment 3 is the same as that according to Embodiment 2 illustrated in  FIG. 13A . In a case where a voice call or a call using a video and voice (hereinafter, referred to as a video call) is made, a phone call (call) is made to the other party by using the imaging unit  109   c  and the voice input unit  110   c  illustrated in  FIG. 13A . 
       FIG. 15  is a diagram illustrating an example of the software configuration of the television receiver  1  according to Embodiment 3. The configuration illustrated in  FIG. 15  differs from the configuration illustrated in  FIG. 13B  in Embodiment 2 in that a call program  104   e  is further stored in the storage unit  104 . The call program  104   e  is expanded in the RAM  103  and the main control unit  101  executes the call program  104   e  to implement a call execution unit  103   e . The call execution unit  103   e  makes a voice call or a video call to the other party of the portable terminal device  2  in the television receiver  1 . In addition, the notification execution unit  103   c  displays not only the incoming call information from the portable terminal device  2  but also mail from the opposite party received by the portable terminal device  2 . 
       FIG. 16  is a flowchart illustrating an example of a notification/call operation of the television receiver  1 . This process is mainly performed by the notification execution unit  103   c  and the call execution unit  103   e . A process from S 401  to S 407  is the same as that illustrated in  FIG. 14  and an incoming call is notified and displayed while privacy is protected. 
       FIG. 17  is a diagram illustrating an example in which an incoming call notification from the portable terminal device  2  is displayed on the television receiver  1 . 
     In S 406 , in a case where only the user of the portable terminal device  2  from which the notification has been received is present around the television receiver  1 , a message M 17   a  indicating the information of the portable terminal device  2  from which the notification has been received, the information of the other party, and the information of the type of incoming call is displayed on the video display unit  109   b . In addition, a process selection screen which will be described below is added to the message M 17   a . Here, a process is selected by a color key of the remote controller  120 . A red key is selected to display a phone call or mail and a blue key is selected to end the process. 
     In contrast, in S 407 , in a case where there is a person other than the user of the portable terminal device  2  from which the notification has been received around the television receiver  1 , a message M 17   b  indicating the information of the portable terminal device  2  from which the notification has been received and the information of the type of incoming call is displayed on the video display unit  109   b  illustrated in  FIG. 17 . In addition, a process selection screen which will be described below is added to the message M 17   b . The process selection screen is the same as that in the case of the message M 17   a . Hereinafter, the process will be described step by step. 
     S 408 : An input selected by the color key of the remote controller  120  is received. 
     S 409 : In the selected input, in a case where the red key is selected, the process proceeds to S 410 . In a case where the blue key is selected for input, the process ends. 
     S 410 : A branch process is performed on the basis of the information of the type of incoming call. In a case where the incoming call is mail, the process proceeds to S 411 . In a case where the incoming call is a phone call (video call) using a video and voice, the process proceeds to S 418 . 
       FIGS. 18A, 18B, and 18C  are diagrams illustrating examples in which the television receiver  1  is used to perform mail display, a voice call, and a video call, respectively. 
     S 411 : In a case where the incoming call is mail, the information (mail text) of the mail received by the portable terminal device  2  is displayed on a sub-screen W 18   a  of the video display unit  109   b  as illustrated in  FIG. 18A . In addition, a message M 18   a  which is a selection screen for ending mail display is displayed. 
     S 412 : An input selected by the remote controller  120  is received. 
     S 413 : The process from S 411  to S 413  is repeated until the blue key (end) is selected for input by the remote controller  120 . 
     S 414 : In a case where the incoming call is a voice call, the output of the voice of a broadcast program or the output of the voice reproduced from the content stored in the storage unit  104  by the voice output unit  110   b  is stopped as illustrated in  FIG. 18B . In addition, the output of a video by the video display unit  109   b  continues. 
     S 415 : A voice call is made through the television receiver  1 . That is, the user&#39;s voice is input by the voice input unit  110   c  (L/R) and the communication unit  106  transmits voice data to the paired portable terminal device  2 . In contrast, the television receiver  1  receives the voice data of the other party acquired by the mobile telephone network communication unit  210   b  from the portable terminal device  2  and outputs the voice data from the voice output unit  110   b . In this way, the user makes a voice call to the other party of the portable terminal device  2  through the television receiver  1 . In addition, a message M 18   b  which is a selection screen for ending the voice call is displayed on the video display unit  109   b  illustrated in  FIG. 18B . 
     S 416 : An input selected by the remote controller  120  is received. 
     S 417 : The process from S 415  to S 417  is repeated until the blue key (end) is selected for input by the remote controller  120 . 
     S 418 : In a case where the incoming call is a video call, the output of the voice of a broadcast program or the output of the voice reproduced from the content stored in the storage unit  104  is stopped as illustrated in  FIG. 18C . In addition, the output of a video by the video display unit  109   b  continues. 
     S 419 : A video call is made through the television receiver  1 . That is, the video of the user is input by the imaging unit  109   c , the user&#39;s voice is input by the voice input unit  110   c  (L/R), and the communication unit  106  transmits video data and voice data to the paired portable terminal device  2 . In contrast, the television receiver  1  receives the video data and voice data of the other party acquired by the mobile telephone network communication unit  210   b  from the portable terminal device  2 , displays the video data on a sub-screen W 18   c , and outputs the voice data from the voice output unit  110   b . In this way, the user makes a phone call using a video and voice to the other party of the portable terminal device  2  through the television receiver  1 . In addition, a message M 18   c  which is a selection screen for ending the video call is displayed on the video display unit  109   b  illustrated in  FIG. 18C . 
     S 420 : An input selected by the remote controller  120  is received. 
     S 421 : The process from S 419  to S 421  is repeated until the blue key (end) is selected for input by the remote controller  120 . 
     In the above-mentioned flowchart, in a case where the television receiver  1  performs mail display, a voice call, and a video call, for example, voice data and video data may be transmitted and received between the television receiver  1  and the portable terminal device  2  by the wireless LAN communication unit  210   a  or the near field communication unit  210   c.    
     In Embodiment 3, it is possible not only to display the information of the call received by the portable terminal device  2  on the television receiver  1 , but also to display the mail selected by the user or to make a phone call through the television receiver  1 . In this case, it is possible to switch between a display process and a call process according to the type of incoming call, without moving the portable terminal device  2  from the charging device  3 . Therefore, user convenience is significantly improved. 
     The following can be possible as modification examples of Embodiment 3. 
     In a case where the received mail is displayed in  FIG. 18A , the display of a key corresponding to the scroll or selection of mail display may be added as the content of the message M 18   a.    
     In addition, in a case where a voice call or a video call is received, the portable terminal device  2  outputs, for example, a voice message “Please wait for a moment” to the other party until an input is received in S 409 . In addition, in a case where an input is not received for a predetermined period of time or more, the notification operation of the television receiver  1  may end and the portable terminal device  2  may be switched to the operation of an answering machine. 
     The user recognition process from S 402  to S 405  in  FIG. 16  is not performed and the incoming call information received from the portable terminal device  2  is displayed as the message M 17   b  (the information of the other party is not displayed) illustrated in  FIG. 17 . Then, in a case where the red key (mail display or a call) is selected, the user may be allowed to input a password set to each user of the portable terminal device  2  through the remote controller  120  for identification. Then, mail text may be display or a phone call may be made. 
     Alternatively, the user recognition process from S 402  to S 405  in  FIG. 16  may not be performed and an incoming call may be notified and displayed according to the posture of the portable terminal device  2  while privacy is ensured, as illustrated in  FIGS. 7 and 10  in Embodiment 1. 
     In each of the above-described embodiments, the portable terminal device  2  is separated from the user&#39;s hands in a case where the portable terminal device  2  is charged by the charging device  3 . However, the invention is not limited thereto. For example, the portable terminal device  2  is similarly separated from the user&#39;s hands in a case where the portable terminal device  2  is charged from the extended interface unit  206  (USB interface) through a wired cable or in a case where the portable terminal device  2  is connected to other devices. Therefore, in this case, similarly, information related to the incoming call to be notified to the television receiver  1  is changed according to the posture of the portable terminal device  2  (Embodiment 1) or information related to the incoming call to be displayed by the television receiver  1  is changed according to the user recognized by the television receiver  1  (Embodiment 2). In this case, it is possible to check an incoming call while ensuring the privacy of the user. 
     Examples of the embodiments of the invention have been described above. Of course, the configuration for achieving the technology of the invention is not limited to the embodiments and various modification examples are considered. For example, the messages described in the specification and the drawings are illustrative examples and the effects of the invention are obtained even in a case where different messages are used. 
     Some or all of the above-mentioned functions of the invention may be implemented by hardware. For example, some or all of the above-mentioned functions may be designed by integrated circuits. In addition, some or all of the above-mentioned functions may be implemented by software. For example, a microprocessor unit may interpret and execute a program for implementing each function. Hardware and software may be used in combination. 
     In addition, the control lines and the information lines illustrated in the drawings indicate what is considered to be necessary for explanation and do not necessarily indicate all of the control lines and the information lines on the product. In practice, it may be considered that almost all of the configurations are connected to each other. 
     REFERENCE SIGNS LIST 
     
         
           1  Television receiver 
           2  Portable terminal device 
           3  Charging device 
           103   b  Device cooperation execution unit 
           103   c  Notification execution unit 
           103   d  User recognition execution unit 
           103   e  Call execution unit 
           106  Communication unit 
           109   b  Video display unit 
           109   c  Imaging unit 
           110   c  Voice input unit 
           203   b  Device cooperation execution unit 
           203   c  Notification execution unit 
           203   d  Charging management execution unit 
           203   e  Posture detection execution unit 
           208   a  Video display unit 
           210  Communication unit