JP2007028475A - Television reception system, television receiver, and program - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a mobile television receiver capable of viewing a television image that cannot be received at a place which a radio wave hardly reach. <P>SOLUTION: This television reception system comprises: a mobile television receiver configured to be movable; a communication center for making communication with the mobile television receiver; and a television recorder for making communication with the communication center. In the system, when a state that a reception power amount of a television radio wave is smaller than or equal to a predetermined power amount is continued over a predetermined period of time, the mobile television receiver transmits a video recording request to the communication center, and the communication center causes the television recorder to record a television image based on the supply of the video recording request. When communication with the mobile television receiver is enabled, the communication center causes the television recorder to transfer the recorded television image and transmits the transferred television image to the mobile television receiver, and the mobile television receiver displays the transmitted television image thereon. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

The present invention relates to a television receiver, and more particularly to a television receiver that enables viewing of a television image that could not be received in a place where radio waves are difficult to reach.

  A car navigation device having a function of displaying a road map around a vehicle position and a function of calculating a recommended route from a departure place to a destination is known, as in the technique described in Patent Document 1. The car navigation device also has a function of performing route guidance based on the calculated recommended route.

  In recent years, it has become common to provide additional functions such as a TV, a CD player, and a DVD player in a car navigation device.

In addition, a service has been proposed in which information necessary for driving a car is supplied by having a conversation with an operator in a communication center through a car navigation device and placing an order with the operator. In such a service, various information such as a map, weather, and news are provided as data.
Japanese Patent Publication No. 2002-208098

  Since the car navigation device is mounted on a vehicle, it may move to a place where radio waves are difficult to reach. At that time, if the television image is being received, the television image is interrupted.

  Accordingly, an object of the present invention is to provide a mobile television receiver capable of viewing a television image that could not be received in a place where radio waves are difficult to reach.

  In order to solve the above-described problem, according to a first aspect of the present invention, a television receiver, a communication center that communicates with the television receiver, and a television recording device that communicates with the communication center are provided. In the television receiver system, the television receiver transmits a recording request to the communication center when the state in which the reception power amount of the TV radio wave is equal to or less than a predetermined power amount continues for a predetermined period, The communication center causes the television recording device to record a television image based on the supply of the recording request, and the communication center is recorded on the television recording device when communication with the television receiver is possible. The television image is transferred, the transferred television image is transmitted to the television receiver, and the television receiver displays the transmitted television image. To.

  According to the second aspect of the present invention, there is provided a television receiver that receives a television radio wave and outputs an image signal, and a display unit that displays a television image based on the supply of the image signal. And a communication unit that communicates with a communication center, and the image receiving unit is configured to perform the communication when the state in which the reception power amount of the TV radio wave is equal to or less than a predetermined power amount continues for a predetermined period. The communication unit transmits a recording request to the communication center based on the supply of the non-image receiving signal from the image receiving unit, and transmits a recording request to the TV recording device via the communication center. After the recording request is transmitted, the communication unit transmits a transfer request to the communication center, and transfers the image signal of the recorded television image to the television recording device via the communication center. Let Department receives the image signal transferred from the TV recorder, the display unit and displaying the television image based on the image signal transferred.

  In the second aspect of the present invention, in a preferred embodiment, the communication unit continues a state in which the amount of communication radio waves between the communication unit and the communication center is equal to or greater than a predetermined amount of power over a predetermined period. In this case, the transfer request is transmitted.

  In the second aspect of the invention described above, in a further preferred embodiment, the controller further includes a control unit and a stack for storing an operation mode, and the stack is switched before the switching of the operation mode. An operation mode is stored, and the control unit retrieves the previous operation mode from the stack after transmission of the recording request and sets the operation mode.

  According to a third aspect of the present invention, there is provided a television receiver that receives television radio waves and outputs an image signal, and a display unit that displays a television image based on the supply of the image signal. And a communication unit that communicates with the communication center, wherein the communication unit transmits an operation mode to the communication center every predetermined time, and from the communication unit to the communication center over a predetermined time. When the operation mode is not supplied, and the last supplied operation mode is a television display, the television recording device is made to record a television image via the communication center, and the reception of the operation mode is performed. Based on the restart, the television recording device is caused to transfer an image signal of the recorded television image via the communication center, and the communication unit transmits the image signal transferred from the television recording device. It receives, the display unit and displaying the television image based on the image signal transferred.

  In addition, according to the fourth aspect of the present invention, an image receiving unit that receives television radio waves and outputs an image signal, a display unit that displays a television image based on the supply of the image signal, and communication with a communication center A program for controlling a television receiver having a communication unit for performing a state in which the amount of received power of the television radio wave is equal to or less than a predetermined amount of power through the image receiving unit for a predetermined period of time A non-reception signal is transmitted to the communication unit, a recording request is transmitted to the communication center based on the supply of the non-reception signal from the image reception unit via the communication unit, and a television is transmitted via the communication center. Before recording a television image on the recording device, sending a transfer request to the communication center after sending the recording request via the communication unit, and recording on the television recording device via the communication center An image signal of a television image is transferred, the image signal transferred from the TV recording device is received via the communication unit, and a television image is received based on the transferred image signal via the display unit. It is characterized by being displayed.

  4th aspect of the said invention WHEREIN: In a preferable Example, when the state which the electric energy of the communication radio wave with the said communication part and the said communication center is more than predetermined electric energy continues over a predetermined period, the said communication The transfer request is transmitted through a section.

  In the fourth aspect of the present invention, in a further preferred embodiment, the television receiver further includes a stack for storing an operation mode, and when the operation mode is switched, the television receiver before switching to the stack is stored. The operation mode is stored, and after the recording request is transmitted, the previous operation mode is taken out of the stack and set to the operation mode.

  Further, according to the fifth aspect of the present invention, an image receiving unit that receives television radio waves and outputs an image signal, a display unit that displays a television image based on the supply of the image signal, and communication with a communication center A program for controlling a television receiver having a communication unit that performs an operation mode to transmit the operation mode to the communication center every predetermined time via the communication unit, and from the communication unit over a predetermined time When the operation mode is not supplied to the communication center and the last supplied operation mode is a television display, the television recording device is made to record a television image through the communication center, and the operation mode On the basis of resumption of reception of the image, the television recording device is transferred to the television recording device via the communication center, and the television signal is transmitted via the communication unit. To receive the image signal transferred from the image device, via the display unit, and wherein the displaying the television image based on the transferred the image signal.

  The mobile television receiver of the present invention can receive images by sending a recording request to an externally installed television receiver and transferring the recorded television image when reception of television radio waves becomes difficult. It makes it possible to watch TV images that did not exist.

  Embodiments of the present invention will be described below with reference to the drawings. However, the technical scope of the present invention is not limited to these embodiments, but extends to the matters described in the claims and equivalents thereof.

  FIG. 1 is an overall configuration diagram in the present embodiment. The car navigation device 1 is mounted on a vehicle, and the mobile television receiver of the present invention capable of receiving a television is applied. A user of the car navigation device 1 has a contract with the communication center 2, and the user can receive supply of information from the communication center 2 via the car navigation device 1. The personal computer 3 is a computer owned by the user at home, and can receive television. The car navigation device 1 and the personal computer 3 receive radio waves from the TV station 4, but the car navigation device 1 may not be able to receive TV radio waves depending on the location.

  The communication center 2 and the personal computer 3 can communicate via the Internet. Information such as the IP address of the personal computer 3 is registered in the communication center 2 in advance. Further, the communication center 2 and the car navigation device 1 can exchange data through a DCM (Data Communication Module) line that is CDMA2000 compatible data communication.

  FIG. 2 is a configuration diagram of a navigation apparatus to which the mobile television receiver of the present invention is applied. The car navigation device 1 includes a navigation unit 100, a DCM communication unit 11, a CD / DVD deck 17, and a television receiver 18.

  The navigation unit 100 is a part for realizing a function as a conventional car navigation device, and includes a control unit 10, a memory 12, an input unit 13, a display unit 14, a GPS unit 15, and a hard disk drive (hereinafter referred to as HDD) 16. It is composed of

  The navigation unit 100 displays current location information generated by a GPS unit that receives a GPS (Global Positioning System) signal based on map information stored in the HDD 16 and destination information input from the input unit 13 as a display unit. Displayed at 14. Further, not only the navigation unit 100 but also the entire car navigation device 1 is controlled by the control unit 10. The memory 12 stores a program executed by the control unit 10.

  The DCM communication unit 11 is provided for transferring necessary information and performs communication with the communication center 2 installed outside. The CD / DVD deck 17 plays a CD or displays a DVD image on the display unit 14. The TV receiver 18 receives TV radio waves and displays a TV program on the display unit 14.

  The navigation apparatus 1 to which the mobile television receiver of the present invention is applied also has functions as a television, a CD player, and a DVD player, and manages these functions in an integrated manner. These components are connected to each other by a bus or the like and exchange signals.

  FIG. 3 is a configuration diagram of the communication center in the present embodiment. The communication center 2 communicates with a car navigation apparatus 1 to which the mobile television receiver of the present invention is applied and a personal computer 3 that is a television receiver. The communication center 2 includes a control device 20, a storage device 23, a DCM communication device 21, and an internet communication device 22. The control device 20 is connected to the storage device 23, the DCM communication device 21, and the Internet communication device 22, and can exchange data with each device.

  The Internet communication device 22 is connected to the Internet using a normal telephone line or dedicated line, and communicates with the personal computer 3 that is a television receiver. The DCM communication device 21 communicates with the car navigation device 1 to which the mobile television receiver of the present invention is applied.

  FIG. 4 is a block diagram of a personal computer that records television images in the present embodiment. The personal computer 3 is installed in the home of the user of the car navigation device 1 and has a TV recording function. A personal computer 3 having the function of a television recording device is composed of a CPU 30, an HDD 33, a display unit 34, a television receiver 31, and a modem 32. The CPU 30 is connected to the HDD 23, the display unit 34, the television receiver unit 31, and the modem 32, and can exchange data.

  The modem 32 performs communication with the communication center 2 via the Internet. The television receiver 31 receives television radio waves from the television station and converts them into image signals. The converted image signal is displayed on the display unit. When recording television, the image signal generated by the television receiver is stored in the HDD 33.

  FIG. 5 is a flowchart of a recording instruction in the car navigation apparatus to which the present invention is applied. This flowchart starts when a television program is received by the television receiver 18. Moreover, this flowchart is complete | finished by complete | finishing television reception mode. First, it is assumed that the vehicle on which the car navigation device 1 is mounted is moving, and that the car navigation device 1 receives a TV radio wave and is displaying a TV program (step S1). The state of the TV signal being received is constantly checked to check whether video can be displayed (step S2).

  If the reception state of the TV radio wave deteriorates due to the movement of the vehicle, it is confirmed whether or not the state continues for 5 seconds or more (step S3). If it is difficult to receive for more than 5 seconds, continue to display the TV program as usual. When the state where reception is difficult continues for 5 seconds or longer, the car navigation device 1 transmits a recording request to the personal computer 3 at the home of the user of the car navigation device 1 via the communication center 2 (step S4). ). At this time, the television receiver 18 that detects a decrease in the amount of power of the received radio wave sends a non-reception signal to the DCM communication unit 11 via the controller 10. In response to this, the DCM communication unit 11 transmits a recording request to the personal computer 3 via the communication center 2.

  After transmitting the recording request, the car navigation device 1 switches the operation mode (step S5). Here, the operation mode is an operation state of the car navigation apparatus 1, and there are operation modes such as CD playback, DVD playback, TV display, and navigation. When the operation mode is CD playback, the operation mode also includes information on what number of CDs is being played. In addition, when the operation mode is a television display, information indicating which channel is displayed is also included.

  This operating mode is stored in a stack that is part of the memory 12.

  FIG. 6 is a diagram illustrating a stack for storing operation modes. Here, the operation modes T1 to T7 are stored in the stack. The initial operation mode when the car navigation device 1 is turned on is the operation mode T1, which indicates that the navigation operation was performed. Further, it is shown that the operation mode immediately before the currently set operation mode is the operation mode T7 and the 8-channel television display is being performed.

  In the operation mode switching after the recording request is transmitted, the operation mode T7 is first extracted from the stack. However, since this is an operation mode for displaying a television program, an operation mode T6, which is the previous operation mode, is taken out. However, since this is also an operation mode for displaying TV programs, an operation mode T5, which is the previous operation mode, is taken out. The operation mode T5 is a CD playback operation mode, and indicates that the second song was being played. In the switching of the operation mode in step S5, the operation mode of the car navigation device 1 is set to CD reproduction, and reproduction is performed in order from the second song of the CD.

  Thereafter, the state of communication with the communication center 2 is constantly monitored, and it is checked whether or not the communicable state continues for 5 seconds or more (step S6). When it is confirmed that the communication is possible for 5 seconds or more, it is checked whether or not the reproduction of the music is completed in the reproduction of the CD which is the current operation mode (step S7). If communication with the communication center is possible at the timing when the reproduction of the song is finished, the current position is confirmed by the map information stored in the GPS unit 15 and the HDD 16 (step S8). By checking the current position, it is checked whether there is a possibility of entering the tunnel or whether there is a possibility of going to an area where the radio wave condition is bad such as a mountainous area.

  When the conditions of steps S6, S7, and S8 are satisfied at the same time, a transfer request is transmitted to the personal computer 3 via the communication center 2 (step S9). At this time, a message for requesting permission of data transfer may be further displayed on the display unit 14, and when the user permits through the input unit 13, a transfer request may be transmitted. In accordance with the transfer request, the image signal of the currently recorded program is transmitted from the personal computer 3 via the communication center 2. Simultaneously with the reception of this image signal, the car navigation device 1 reproduces the program based on the received image signal (step S10). It is determined whether or not the reproduction is finished (step S14). When the resume reproduction is finished, the process returns to step S1 of the present process, and this flow is repeated. If the reproduction is not finished, the process proceeds to step S11.

  An interruption may occur in the navigation device 1 during the reproduction of the recorded program. Here, the interruption is an operation such as a display for calling attention when the vehicle travels in an accident-prone area. Such an interrupt is constantly monitored (step S11). When an interrupt occurs, a transfer stop request is transmitted to the personal computer 3 via the communication center 2 (step S12).

  The interrupt state is constantly monitored (step S13). When the interruption is completed, the transfer request is transmitted again to the personal computer 3 via the communication center 2 (step S9), and the display of the recorded program is resumed.

  Recording of a TV program on the personal computer 3 can be stopped by transmitting a recording stop request from the car navigation device 1 via the communication center 2. The recording stop request can be transmitted by operating the input unit 13 of the car navigation device 1. The recording stop request is automatically transmitted when the power of the car navigation apparatus 1 is turned off. The transfer of the recorded TV program from the personal computer 3 can be canceled by transmitting a transfer stop request from the car navigation device 1 via the communication center 2. The transfer stop request can also be transmitted by operating the input unit 13 of the car navigation apparatus 1. The transfer stop request is automatically transmitted when the power of the car navigation apparatus 1 is turned off.

  The request transmitted from the car navigation device 1 includes address information for specifying the personal computer 3 and identification information indicating the content of the request. The recording request also includes information on the channel for recording.

  When these requests are transmitted to the communication center 2, the DCM communication device 21 receives them, and the control device 20 confirms the destination to be transferred based on the address information. These requests are transferred to the destination to be transferred via the Internet communication device 22. When the address information for specifying the personal computer 3 transmitted from the car navigation device 1 is the identifier of the car navigation device 1 itself, a database exists in the storage device 23 of the communication center 2, and the car navigation device 1 Is converted into address information of the personal computer 3, and the request is transferred based on the address information.

  In the personal computer 3, the transferred request is received via the modem 32. If the received request is a recording request, the CPU 30 receives the channel specified by the recording request via the television receiver 31 and stores the image signal in the HDD 33. When the transferred request is a transfer request, the image signal stored in the HDD 33 is sequentially transferred to the communication center 2. If the transferred request is a transfer stop request, the transfer is stopped, and if it is a recording stop request, the recording is stopped.

  In the communication center 2, the image signal transferred from the personal computer 3 is received by the Internet communication device 22. The car navigation device 1 to which the image signal is to be transferred is specified by the address information of the transmission source personal computer 3 and the database stored in the storage device 23. This database stores the identifier of the car navigation device 1 and the address information of the personal computer 3 in association with each other.

  As described above, the mobile television receiver of the present invention could not receive an image in a place where radio waves are difficult to reach by sending a recording request to the television receiver installed outside and transferring the recorded television image. Enables viewing of TV images.

  Also, in places where it is difficult to receive TV radio waves, it may be difficult to communicate with the communication center 2, so that a recording request may not be transmitted. In order to overcome this difficulty, it is possible to leave the transmission of the recording request to the communication center 2.

  FIG. 7 is a flowchart of the car navigation apparatus in the case where the transmission of the recording request is left to the communication center. This flowchart starts when the car navigation apparatus 1 is turned on. Moreover, this flowchart is complete | finished by complete | finishing television mode. The car navigation device 1 continues to transmit the operation mode to the communication center 2 every 30 seconds since the power is turned on. Transmission of the operation mode is continued until the power is turned off. When a TV broadcast is received and a program is displayed (step U1), a reception status check is started (step U2). If it is difficult to receive TV radio waves for more than 5 seconds, the operation mode is switched (step U3). Thereafter, the operation is the same as the flowchart in FIG.

  FIG. 8 is a flowchart performed by the control unit 20 of the communication center 2 when sending the recording request to the communication center. The control unit 20 continues to receive the operation mode from the car navigation device 1 by the DCM communication device 21 (step V1). The operation mode is transmitted every 30 seconds, but it is checked whether 40 seconds or more have elapsed since the reception of the previous operation mode (step V2). If 40 seconds or more have elapsed, the last received operation mode is checked (step V3). If the last received operation mode is TV display, it is determined that the radio wave condition has deteriorated during the display, and a recording request is transmitted to the personal computer 3 via the Internet communication device 22 (step V4). The operations other than the recording request transmission are the same as those in the flowchart in FIG.

  As described above, the mobile television receiver of the present invention could not receive an image in a place where radio waves are difficult to reach by sending a recording request to the television receiver installed outside and transferring the recorded television image. Enables viewing TV images.

It is a whole block diagram in this Embodiment. It is a block diagram of the navigation apparatus to which the mobile television receiver of the present invention is applied. It is a block diagram of the communication center in this Embodiment. It is a block diagram of the personal computer which is a television recording device in this Embodiment. It is a flowchart of the recording instruction | indication in the car navigation apparatus with which this invention was applied. It is a figure which shows the stack which stores an operation mode. It is a flowchart of the car navigation apparatus when the transmission of the recording request is left to the communication center. It is a flowchart of the communication center 2 in the case of entrusting transmission of a recording request to a communication center.

Explanation of symbols

1 car navigation device
10 Control unit
11DCM communication department
12 memory
13 Input section
14 display
15GPS section
16HDD
17CD / DVD deck
18 TV receiver

Claims (9)

A television receiver,
A communication center for communicating with the television receiver;
A television receiver system having a television recording device for communicating with the communication center,
The television receiver transmits a recording request to the communication center when a state in which the reception power amount of the TV radio wave is equal to or less than a predetermined power amount continues for a predetermined period,
The communication center, based on the supply of the recording request, causes the television recording device to record a television image,
When the communication center can communicate with the television receiver, the television recording device transfers the recorded television image, and transmits the transferred television image to the television receiver.
The television receiver system, wherein the television receiver displays the transmitted television image. A television receiver,
An image receiving unit that receives TV radio waves and outputs image signals;
A display unit for displaying a television image based on the supply of the image signal;
A communication unit that communicates with the communication center;
The image receiving unit transmits a non-image receiving signal to the communication unit when a state in which the reception power amount of the television radio wave is equal to or less than a predetermined power amount continues for a predetermined period,
The communication unit transmits a recording request to the communication center based on the supply of the non-image receiving signal from the image receiving unit, and causes the TV recording device to record a TV image via the communication center,
The communication unit transmits a transfer request to the communication center after transmitting the recording request, causes the television recording device to transfer an image signal of the recorded television image via the communication center,
The communication unit receives the image signal transferred from the television recording device,
The television receiver, wherein the display unit displays a television image based on the transferred image signal. In claim 2,
The communication unit transmits the transfer request when a state in which a power amount of a communication radio wave between the communication unit and the communication center is a predetermined power amount or more continues for a predetermined period. TV receiver. In claim 2,
Furthermore, it has a stack for storing the control unit and the operation mode,
The stack stores the operation mode before switching when the operation mode is switched,
The control unit, after transmitting the recording request, extracts the previous operation mode from the stack and sets the operation mode. A television receiver,
An image receiving unit that receives TV radio waves and outputs image signals;
A display unit for displaying a television image based on the supply of the image signal;
A communication unit that communicates with the communication center;
The communication unit transmits an operation mode to the communication center every predetermined time,
When the operation mode is not supplied from the communication unit to the communication center for a predetermined time, and when the last supplied operation mode is a television display, the television recording is performed via the communication center. Let the device record a TV image,
Based on resumption of reception of the operation mode, the image recording signal of the recorded television image is transferred to the television recording device via the communication center,
The communication unit receives the image signal transferred from the television recording device,
The television receiver, wherein the display unit displays a television image based on the transferred image signal. An image receiving unit that receives TV radio waves and outputs image signals;
A display unit for displaying a television image based on the supply of the image signal;
A program for controlling a television receiver having a communication unit for communicating with a communication center,
When the state in which the reception power amount of the TV radio wave is equal to or less than a predetermined power amount continues for a predetermined period through the image receiving unit, the non-reception signal is transmitted to the communication unit,
Via the communication unit, based on the supply of the non-image receiving signal from the image receiving unit, to send a recording request to the communication center, to cause the TV recording device to record a television image via the communication center,
Via the communication unit, after transmitting the recording request, to transmit a transfer request to the communication center, to transfer the image signal of the recorded television image to the television recording device through the communication center,
The image signal transferred from the television recording device is received via the communication unit,
A program for displaying a television image on the basis of the transferred image signal via the display unit. In claim 6,
The transmission request is transmitted via the communication unit when a state in which a power amount of communication radio waves between the communication unit and the communication center is equal to or greater than a predetermined power amount continues for a predetermined period. Program to do. In claim 6,
The television receiver further includes a stack for storing an operation mode,
When the operation mode is switched, the operation mode before switching is stored in the stack,
A program characterized in that after the recording request is transmitted, the previous operation mode is extracted from the stack and set to the operation mode. An image receiving unit that receives TV radio waves and outputs image signals;
A display unit for displaying a television image based on the supply of the image signal;
A program for controlling a television receiver having a communication unit for communicating with a communication center,
Via the communication unit, the operation mode is transmitted to the communication center every predetermined time,
When there is no supply of the operation mode from the communication unit to the communication center for a predetermined time, and when the last supplied operation mode is a television display, a television recording device is connected via the communication center. To record TV images,
Based on resumption of reception of the operation mode, the image recording signal of the recorded television image is transferred to the television recording device via the communication center,
The image signal transferred from the television recording device is received via the communication unit,
A program for displaying a television image on the basis of the transferred image signal via the display unit.

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