JP2012080429A - Broadcast receiver - Google Patents

Abstract

PROBLEM TO BE SOLVED: To solve the problem of a broadcast receiver in which a tuner other than a channel being viewed is required to display data broadcast of a channel other than a channel being viewed.SOLUTION: A broadcast receiver 100 comprises: a front end part 103 which receives a broadcast signal of a channel designated to be tuned in to; a transport part 104 which separates a video signal and a broadcast signal from the received broadcast signal; an MPEG decoding part 105 which superimposes the data broadcast signal onto the video signal: a memory 107 which stores the data broadcast signal: and a control part 106 which when the broadcast receiver is in a stand-by state, controls the data broadcast signal of the first channel to be stored in the memory 107, and when the video signal of the second channel is viewed, controls the data broadcast signal of the first channel stored in the memory 107 to be superimposed onto the video signal of the second channel, according to a user's designation.

Description

  The present invention relates to a broadcast receiver capable of acquiring various digital broadcast data broadcasts, and more particularly to a broadcast receiver capable of superimposing a data broadcast superimposed on a channel different from a user's viewing channel on a video of the viewing channel. .

  In various digital broadcasting systems such as BS / CS digital broadcasting and terrestrial digital broadcasting, data broadcasting linked to the program being broadcast and data broadcasting independent of the program being broadcast such as news and weather forecast are transmitted. There may be. In general, the data broadcast sent together with the program being broadcast is displayed, but the data broadcast sent by the channel is different, so the data broadcast on a channel different from the viewing channel can be made depending on personal preference. A display method has been devised.

  For example, in a receiver having a plurality of tuners as in Patent Document 1 below, data on a channel different from the channel currently being viewed can be obtained by using a tuner that is not used for viewing for data broadcast acquisition. It is possible to receive a broadcast and display a data broadcast of another channel superimposed on the viewing channel.

JP 2005-20409 A

  However, since the television receiver disclosed in Patent Document 1 requires a plurality of tuners, in a receiver having only one tuner (one system), a channel other than the viewing channel is being viewed. There is a problem that data broadcasting cannot be received.

  In addition, even a television receiver having a plurality of tuners, a receiver having a recording function or a receiver having a multi-screen simultaneous display function such as a two-screen function uses all the tuners provided in the receiver. In this case, there is a problem that a desired data broadcast cannot be received, as in a receiver having only one tuner.

  The present invention obtains a data broadcast signal in advance when the broadcast receiving apparatus is in a standby state (standby state, which means a state where only the power of a functional block necessary for obtaining and storing the data broadcast, such as a tuner, is turned on). By storing, even when there is no unused tuner in the broadcast receiving apparatus, the data broadcast signal superimposed on a channel different from the user's viewing channel is displayed superimposed on the viewing channel. .

  The broadcast receiving apparatus of the present invention includes a front end unit that receives a broadcast signal of a channel instructed to select a channel, a transport unit that separates a video signal and a data broadcast signal from the received broadcast signal, and the video signal. An MPEG decoding unit for superimposing the data broadcast signal, a memory for storing the data broadcast signal, and when the broadcast receiving apparatus is in a standby state, the data broadcast signal of the first channel is stored in the memory, And a control unit that superimposes the data broadcast signal of the first channel stored in the memory on the video signal of the second channel based on a user instruction when the video signal is being viewed.

  Further, the front end unit in the broadcast receiving apparatus of the present invention is one system.

  Further, the data broadcast signal of the first channel in the broadcast receiving apparatus of the present invention is a data broadcast signal of a channel instructed by a user in advance.

  In the broadcast receiving apparatus of the present invention, the data broadcast signal of the first channel is a data broadcast signal of all channels that can be selected.

  Further, the acquisition frequency of the data broadcast signal of the first channel when the broadcast receiving apparatus of the present invention is in a standby state is determined by user setting.

  According to the broadcast receiving apparatus of the present invention, while viewing a certain channel, a data broadcast signal of a channel different from the current viewing channel acquired and stored in advance can be superimposed and displayed on the current viewing channel. A user who is a viewer can view a desired data broadcast without switching channels.

  According to the broadcast receiving apparatus of the present invention, while viewing a certain channel, a data broadcast signal of a channel different from the current viewing channel acquired and stored in advance can be superimposed and displayed on the current viewing channel. A user who is a viewer can view a desired data broadcast without switching channels.

The block diagram which shows the structure of the broadcast receiver concerning the Example of this invention.

  Hereinafter, embodiments for carrying out the present invention will be described with reference to the drawings.

  First, the configuration and function of a broadcast receiving apparatus according to an embodiment of the present invention will be described.

  FIG. 1 is a block diagram showing a configuration of a broadcast receiving apparatus 100 according to an embodiment of the present invention. The broadcast receiving apparatus 100 shown in FIG. 1 has one tuner, but there may be a plurality of tuners.

  The broadcast receiving apparatus 100 includes a front end unit 103, a transport unit 104, an MPEG decoding unit 105, a CPU 106, a FLASH ROM 107, a RAM 108, an input interface 109 that receives operation inputs from a remote controller, and a remote controller 110.

  Further, the front end unit 103 includes a tuner unit 103a, a demodulation circuit 103b, and an error correction unit 103c. The transport unit 104 includes a transport decoder 104a. The MPEG decoding unit 105 includes an MPEG decoder 105a, an OSD display unit 105b, A video encoder 105c and an audio DAC 105d are included. The FLASH ROM 107 stores or records a system control program 107a, channel information 107b, data broadcast acquisition frequency 107c, and data broadcast information 107d.

  In FIG. 1, a tuner unit 103a of the front end unit 103 receives a broadcast signal of a channel instructed to select based on a user's channel selection instruction. The broadcast signal of the channel selected by the tuner unit 103a is demodulated by the demodulation circuit 103b, subjected to error correction by the error correction unit 103c, and output to the transport unit 104.

  In the transport decoder 104a of the transport unit 104, the broadcast signal output from the front end unit 103 is separated into a video signal, an audio signal, and a data broadcast signal. The video signal and audio signal separated by the transport unit 104 are output to the code unit 105 in MPEG, and the data broadcast signal is output to the CPU 106.

  In the MPEG decoder 105a of the MPEG decoder 105, data decoding of the video signal and audio signal output from the transport unit 104 is performed, and the decoded video signal is sent to a display device (not shown) connected to the video encoder 105c. It is encoded into a corresponding video signal. The decoded audio signal is converted into an analog signal by the audio DAC 105d and output. The OSD display unit 105b performs display control of various menus, electronic program guides, and the like, and performs display control of data broadcast signals. These displays are superimposed on the video signal from the MPEG decoder 105a and displayed on the display device.

  The CPU 106 is managed or controlled by a control signal sent from the input interface 109 by a user operation from the remote controller 110 and a system control program 107a stored in the FLASH ROM, and controls the entire broadcast receiving apparatus 100 such as tuner tuning processing.

  The broadcast receiving apparatus 100 receives and receives a data broadcast signal in a standby state (standby state, which means a state in which only functional blocks necessary for acquiring and storing a data broadcast, such as a tuner, are turned on). The broadcast data signal is stored in the FLSAHROM 107. The channel that the user has instructed to select in advance is stored in the channel information 107b, and the data broadcast signal received based on the channel stored in the channel information 107b is accumulated as the data broadcast information 107d via the CPU. . In order to acquire the latest information, it is possible to always acquire a data broadcast signal during standby and store it as data broadcast information 107d or store it by overwriting. It is also possible to acquire a data broadcast signal in accordance with a data broadcast signal acquisition frequency 107c preset by the user. It is also possible to acquire a data broadcast signal based on all channels that can be selected by the broadcast receiving apparatus 100.

  The remote controller 110 is provided with a button 110a for turning on / off the display of the data broadcast signal.

  Next, the operation of the broadcast receiving apparatus according to the embodiment of the present invention will be described.

  The broadcast receiving apparatus 100 receives broadcast signals during standby. At this time, while referring to the channel information 107b instructed by the user in advance, only the broadcast signal of the acquisition target channel of the data broadcast signal may be received, or all the broadcast receivers 100 can receive the broadcast signal. A channel data broadcast signal may be received. The received data broadcast signal is stored on the FLASH ROM 107 as data broadcast information 107d.

  When the user presses the remote control button 110a when viewing an arbitrary channel, the data broadcast information 107d stored in the FLASH ROM 107 is read and can be displayed superimposed on the video signal of the channel being viewed. At this time, which of the data broadcast signal currently being viewed or the data broadcast information 107d stored in the FLASH ROM 107 is displayed depends on the user's selection.

  According to the broadcast receiving apparatus of the present invention, while viewing a certain channel, a data broadcast signal of a channel different from the current viewing channel acquired and stored in advance can be superimposed and displayed on the current viewing channel. Users who are viewers can view the desired data broadcast without switching channels

  The broadcast receiving device of the present invention can display a data broadcast signal of a channel different from the current viewing channel acquired in advance while superimposing on the current viewing channel while viewing a certain channel. A user can view a desired data broadcast without switching channels, and is useful as a broadcast receiving apparatus capable of displaying the data broadcast.

DESCRIPTION OF SYMBOLS 100 Broadcast receiving apparatus 103 Front end part 103a Tuner part 103b Demodulator circuit 103c Error correction part 104 Transport part 104a Transport decoder 105 MPEG decoding part 105a MPEG decoder 105b OSD display part 105c Video encoder 105d Audio DAC
106 CPU
107 FLASHROM
107a System control program 107b Channel information 107c Data broadcast acquisition frequency 107d Data broadcast information 108 RAM
109 Input interface 110 Remote control 110a Button

Claims (5)

A front-end unit that receives a broadcast signal of a channel instructed to select a channel;
A transport unit for separating a video signal and a data broadcast signal from the received broadcast signal;
An MPEG decoding unit for superimposing the data broadcast signal on the video signal;
A memory for storing data broadcast signals;
When the broadcast receiving device is in a standby state,
Store the data broadcast signal of the first channel in the memory,
If the video signal of the second channel is being viewed,
Based on a user instruction, a controller that superimposes the data broadcast signal of the first channel stored in the memory on the video signal of the second channel;
A broadcast receiver comprising: The broadcast receiving apparatus according to claim 1, wherein the front end unit is one system. 2. The broadcast receiving apparatus according to claim 1, wherein the data broadcast signal of the first channel is a data broadcast signal of a channel instructed by a user in advance. 2. The broadcast receiving apparatus according to claim 1, wherein the data broadcast signal of the first channel is a data broadcast signal of all channels that can be selected. 2. The broadcast receiving apparatus according to claim 1, wherein an acquisition frequency of the data broadcast signal of the first channel when the broadcast receiving apparatus is in a standby state is determined by a user setting.

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