JP2005204009A - Television receiver and method of television reception - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To enable a television receiver, equipped with a plurality of tuners to receive a data broadcast of a different broadcasting station, while being tuned to a program of an arbitrary broadcasting station, and to display information that the user requires together with video of the program being received, by extracting the necessary information from information contained in the data broadcast received. <P>SOLUTION: The television receiver 10 has a tuner part 13a for receiving BS/CS digital broadcasts, a tuner part 13d for receiving terrestrial wave digital broadcasts, and a FLASH ROM 17 stored with keyword information 17b. While the program of an arbitrary channel is received by the tuner part 13d, the tuner part 13a sequentially or fixedly receive other channels, extracts only information, relating to the keyword information 17b from information included in a data broadcast, accompanying the program of the sequentially or fixedly received channel or a data broadcast which is independent of the program, and makes the extracted information on the program vide being received on a screen superimposed. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a television receiver and a television receiving method, and more particularly to a television receiver and a television receiving method that include a plurality of tuners and can simultaneously receive different broadcasts.

In multi-channel digital broadcasting systems such as BS / CS digital broadcasting and terrestrial digital broadcasting that have recently started broadcasting, data broadcasting linked to the contents of the program being broadcast and data broadcasting independent of the program are transmitted. There may be. A digital television receiver capable of displaying only data broadcasting information required by the viewer among various information transmitted by the data broadcasting is disclosed (for example, see Patent Document 1).
JP 2002-290856 A

  However, since the digital television receiver disclosed in Patent Document 1 has only one tuner, it can extract only information included in the data broadcast accompanying the program being viewed. Accordingly, since a data broadcast cannot be received from another broadcast station at the same time as viewing a program of one broadcast station, the information available to the viewer is limited. For example, information required by the viewer may be provided in data broadcasting transmitted from a broadcasting station other than the broadcasting station being viewed, but the viewer has to switch channels in order to obtain the information. Therefore, it is necessary to select a broadcasting station for the data broadcasting.

  In addition, when the tuner is a single television receiver, only information included in the data broadcast accompanying the selected program can be extracted. Even when more useful information is provided to the viewer, the viewer cannot obtain the useful information.

  The present invention has been made in view of the above circumstances, and in a television receiver having a plurality of tuners, when a program of one broadcast station is being viewed, data of other broadcast stations is simultaneously obtained. It was made for the purpose of enabling broadcast reception and extracting information necessary for the viewer from information included in the received data broadcast so that it can be superimposed on the video of the program and displayed. .

In order to solve the above-described problem, the first technical means is a television receiver including a plurality of tuners capable of receiving digital broadcasts and data broadcasts, and the television receiver includes storage means storing keyword information. Included in the data broadcast provided by the second tuner sequentially or fixedly receiving another channel while the program of an arbitrary channel is being watched by the first tuner and the channel received by the sequential or fixedly received channel. Information extraction means for extracting only information related to the keyword information stored in the storage means, and display control for displaying the extracted information on the screen by superimposing the extracted information on the program video being viewed And means.
Here, television receivers that are equipped with a plurality of tuners of the same frequency band for two-screen display or that are separately equipped with a terrestrial digital tuner are commercially available. In the present invention, a television receiver having such a plurality of tuners is used. For example, when watching a terrestrial digital broadcast with one tuner, the other tuner uses an idle circuit to accompany a program on a channel of another network (BS digital broadcast or CS digital broadcast) or a program on another channel of the same network. By receiving a data broadcast that is independent of a program or a data broadcast, only the information required by the viewer is extracted from the data broadcast provided by many channels, and the extracted information is transmitted to the terrestrial digital broadcast. The video is superimposed on the program video.

  According to a second technical means, in the first technical means, the television receiver has channel designation means for allowing a user to select or designate a channel for receiving data broadcast on the second tuner side, and the storage means. It is characterized by comprising keyword specifying means for selecting or specifying valid keyword information from the stored keyword information.

  According to a third technical means, in the first or second technical means, the television receiver includes an operation input means for remotely operating the television receiver, and the operation input means is configured to extract the information. An operation button for displaying or deleting the information extracted by the means on the screen is provided.

  According to a fourth technical means, in any one of the first to third technical means, the display control means is designated in advance by a user when displaying the information extracted by the information extracting means on the screen. The display is performed according to the display form.

  A fifth technical means is any one of the first to fourth technical means, wherein the tuner is capable of receiving a data broadcast accompanying the program or a data broadcast independent of the program. It is.

  In a television receiving method using a television receiver including a plurality of tuners capable of receiving digital broadcasting and data broadcasting, a sixth technical means is configured to view a program of an arbitrary channel with the first tuner. Relevant to the keyword information stored in advance in the storage means among the information included in the data broadcast provided by the second tuner sequentially or fixedly receiving the other channels, and the channels received sequentially or fixedly. And an information extraction step for extracting only the information that has been extracted, and a display control step for superimposing the extracted information on the program video being viewed and displaying it on the screen.

  A seventh technical means includes a channel designation step in which, in the sixth technical means, the second tuner side selects or designates a channel for receiving a data broadcast, and a keyword information stored in the storage means. A keyword specifying step for selecting or specifying effective keyword information from among them.

  In a television receiver having a plurality of tuners, while watching a program of one broadcasting station, it is possible to receive data broadcasting of other broadcasting stations at the same time, and viewing from information included in the received data broadcasting Since the information required by the viewer can be extracted and superimposed on the video of the program, the viewer can obtain the desired information without switching the channel and can not miss the necessary information. , Viewer convenience is improved.

  FIG. 1 shows an internal configuration example of a television receiver equipped with a plurality of tuners for receiving digital broadcasting signals of a plurality of networks including BS / CS / terrestrial digital broadcasting according to an embodiment of the present invention. In the block diagram, in the figure, reference numeral 10 denotes a television receiver, which includes a BS / CS system antenna 11 for receiving BS / CS digital broadcasting, and a ground for receiving terrestrial digital broadcasting. System antenna 12, front end unit 13, transport unit 14, MPEG decoding unit 15, CPU 16, FLASHROM 17, RAM 18, input interface (I / F) 19 for accepting operation input from a remote control, remote control 20, port 21, modem 22 is provided. The modem 22 is attached to the port 21, and the television receiver 10 can be connected to the public line 23 by the modem 22.

  Further, the front end unit 13 includes a BS / CS tuner unit 13a, a BS / CS demodulator circuit 13b, a BS / CS error correction unit 13c, a terrestrial tuner unit 13d, a terrestrial demodulator circuit 13e, and a terrestrial error correction unit. 13f, the transport unit 14 includes a transport decoder 14a, the MPEG decoding unit 15 includes an MPEG decoder 15a, an OSD display unit 15b, a video encoder 15c, and an audio DAC 15d. The FLASH ROM 17 includes a system The control program 17a, keyword information 17b designated by the user, channel information 17c, and display form information 17d are stored.

  In FIG. 1, a digital broadcast signal received by a BS / CS system antenna 11 is input to a BS / CS system tuner unit 13a. The BS / CS tuner 13a selects a predetermined network (BS digital broadcast or CS digital broadcast) and channel according to the instruction of the viewer, and the digital signal is transmitted to the BS / CS demodulator circuit 13b, BS / CS error. Via the correction unit 13c, the transport decoder 14a divides the signal into an audio signal, a video signal, and a data signal. Further, the MPEG decoder 15a demodulates data of the video signal / audio signal, and the video signal is demodulated into a video signal suitable for a display device (not shown) connected to the video encoder 15c. The audio signal is demodulated into an audio signal suitable for a display device or an audio device (not shown) connected to the audio DAC 15d.

  Similarly, the digital broadcast signal received by the terrestrial antenna 12 is input to the terrestrial tuner unit 13d. In the terrestrial tuner unit 13d, a predetermined channel is selected according to the instruction of the viewer, and the digital signal passes through the terrestrial demodulator circuit 13e and the terrestrial error correction unit 13f, and is transmitted to the transport decoder 14a. It is divided into signal and data signal. Further, in the MPEG decoder 15a, data demodulation of the video signal / audio signal is performed, and the video signal is demodulated into a video signal suitable for a display device connected to the video encoder 15c. The audio signal is demodulated into an audio signal suitable for a display device or an audio device connected to the audio DAC 15d.

  In the preceding stage of the transport decoder 14a, the broadcast signal on the side of the viewer's channel selection is selected, either terrestrial broadcasting or satellite (BS digital / CS digital) broadcasting.

  The CPU 16 is generally managed and controlled by a control signal sent from the input I / F 19 by a user operation from the remote controller 20 and a system control program 17a stored in the FLASH ROM 17, and the entire television receiver 10 such as tuner selection processing. To control. The OSD display unit 15b controls display of various menus and electronic program guides, and the various menus and electronic program guides are superimposed on the video signal from the MPEG decoder 15a and displayed on the display device.

  In the television receiver 10 according to the present embodiment, when one of the BS / CS tuner 13a and the terrestrial tuner 13d is idle, the channel of another network (that is, a network that is not currently being watched). , A data broadcast associated with a program on another channel of the same network (currently viewing network), or a data broadcast independent of the program, and a channel desired by the user (channel information 17c) stored in the FLASH ROM 17 ) And the keyword information 17b, only the information related to the keyword information 17b is extracted from the received data broadcast and drawn on the OSD display unit 15b. The related information from the OSD display unit 15b is extracted from the MPEG decoder 15a. Is superimposed on the video signal and displayed on the display device. It is.

When specifying a channel for receiving data broadcasting, the television receiver 10 selects or specifies a channel for receiving data broadcasting by either the BS / CS tuner 13a or the terrestrial tuner 13d. Can be made. In this case, all the channels included in the channel information 17c may be targeted for data broadcast reception, or some channels may be selected and designated.
The television receiver 10 can also select or designate valid keyword information from the keyword information 17b stored in the FLASH ROM 17. For this, all the keywords included in the keyword information 17b may be specified, or some keywords may be selected and specified.

  In addition, the remote controller 20 includes a keyword related information call button 20a, and the viewer can display or delete information related to the keyword information 17b on the screen by pressing the keyword related information call button 20a. it can.

  In addition, the television receiver 10 can display information related to the keyword information 17b on the screen according to a display form designated in advance by the user. That is, the display form information 17d stored in the FLASH ROM 17 includes information related to the display form such as the display position and display area of the related information on the screen, and when displaying the related information on the screen, The CPU 16 can display the related information on the screen according to the display form information 17d by referring to the display form information 17d.

  FIG. 2 is a flowchart for explaining an example of a television receiving method using the television receiver 10 shown in FIG. In this example, when a terrestrial tuner unit 13d views a terrestrial digital broadcast, the BS / CS tuner unit 13a receives a program including a data broadcast of the BS digital broadcast or an independent data broadcast program. As a representative example, a process from extracting and displaying only information required by the viewer from the accompanying data broadcast or independent data broadcast program will be described.

  First, when the terrestrial tuner unit 13d views the terrestrial digital broadcast, the television receiver 10 starts receiving the BS digital broadcast on the idle side, that is, the BS / CS tuner unit 13a side. The BS / CS tuner 13a receives the broadcast wave of the information acquisition target channel while referring to the channel information 17c registered in advance by the viewer (step S1). The channel information 17c is made up of desired channel information for which information is to be acquired, and is input from the menu screen on the display device and stored in the FLASH ROM 17 by the viewer.

  Next, the CPU 16 reads the keyword information 17b stored in the FLASH ROM 17 (step S2), and from the data broadcast accompanying the BS digital broadcast program received in step S1 or the information included in the independent data broadcast program. Only the information related to the read keyword information (keyword related information) is extracted, and the extracted keyword related information is temporarily stored in the memory (FLASHROM 17 or RAM 18) (step S3). In this example, “weather forecast” is specified as the keyword information 17b, and keyword-related information (for example, weather forecast Tochigi 7/25 Hare) related to this “weather forecast” is acquired from the data broadcast.

  Next, the CPU 16 determines whether or not all the specified channel information 17c and keyword information 17b have been searched (step S4). If not all have been searched (in the case of NO), the process returns to step S1 or step S2. repeat. If all the searches are made in step S4 (YES), it is determined whether the keyword related information call button 20a of the remote controller 20 has been pressed by the user (step S5), and the keyword related information call button 20a is pressed. If not (NO), a standby state is entered in step S5. In addition, when the keyword related information call button 20a is pressed in the above step S5 (in the case of YES), the keyword related information (weather forecast Tochigi 7/25) is read from the FLASHROM 17 or the RAM 18 and the terrestrial wave being viewed It is displayed superimposed on the digital broadcast program video (step S6).

  According to this embodiment, in a television receiver equipped with a plurality of tuners, when one of the tuners is normally viewing BS digital broadcasting, CS digital broadcasting, or terrestrial digital broadcasting, the other tuner is used. Uses an idle circuit to broadcast data associated with programs on channels of other networks (networks that are not currently viewed), broadcast data associated with programs on other channels of the same network (currently viewed networks), or By receiving a data broadcast independent of the program, only the information required by the viewer is extracted from the information contained in the data broadcast of many channels, and the information is superimposed on the program video being viewed and displayed. Viewers can obtain the desired information without switching channels. Rutotomoni, it is not to miss the necessary information, thereby improving the convenience of the audience.

1 is a block diagram illustrating an internal configuration example of a television receiver equipped with a plurality of tuners for receiving digital broadcasting signals of a plurality of networks including BS / CS / terrestrial digital broadcasting according to an embodiment of the present invention. . It is a flowchart for demonstrating an example of the television receiving method using the television receiver shown in FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 ... Digital receiver, 11 ... BS / CS system antenna, 12 ... Ground system antenna, 13 ... Front end part, 13a ... BS / CS system tuner part, 13b ... BS / CS system demodulation circuit, 13c ... BS / CS system Error correction unit, 13d ... Terrestrial tuner unit, 13e ... Terrestrial demodulation circuit, 13f ... Terrestrial error correction unit, 14 ... Transport unit, 14a ... Transport decoder, 15 ... MPEG decoding unit, 15a ... MPEG decoder, 15b ... OSD display section, 15c ... Video encoder, 15d ... Audio DAC, 16 ... CPU, 17 ... FLASHROM, 17a ... System control program, 17b ... Keyword information, 17c ... Channel information, 17d ... Display form information, 18 ... RAM, 19 ... Input I / F, 20 ... Remote control, 20a ... Keyword related information call button 21 ... port, 22 ... modem, 23 ... public line.

Claims (7)

  In a television receiver including a plurality of tuners capable of receiving digital broadcasting and data broadcasting, the television receiver is viewing a program of an arbitrary channel with a storage unit storing keyword information and the first tuner. In addition, the keyword information stored in the storage means among the information included in the data broadcast provided by the second tuner sequentially or fixedly receiving other channels and provided on the sequential or fixedly received channel. A television receiver comprising: information extracting means for extracting only information related to the information; and display control means for superimposing the extracted information on the program video being viewed on a screen. .   2. The television receiver according to claim 1, wherein the television receiver is stored in the storage means and channel designation means for allowing a user to select or designate a channel for receiving data broadcast on the second tuner side. A television receiver comprising keyword specifying means for selecting or specifying effective keyword information from the keyword information.   3. The television receiver according to claim 1, wherein the television receiver includes operation input means for remotely operating the television receiver, and the operation input means is extracted by the information extraction means. A television receiver comprising an operation button for displaying or erasing the recorded information on the screen.   4. The television receiver according to claim 1, wherein the display control unit displays a display form designated in advance by a user when displaying the information extracted by the information extraction unit on a screen. 5. A television receiver characterized by being displayed according to the above.   5. The television receiver according to claim 1, wherein the tuner is capable of receiving a data broadcast accompanying the program or a data broadcast independent of the program. .   In a television receiving method using a television receiver including a plurality of tuners capable of receiving digital broadcasts and data broadcasts, a first tuner is viewing a program of an arbitrary channel, and the second tuner is another Information for extracting only information related to keyword information stored in advance in the storage means from information included in the data broadcast provided sequentially or fixedly received by the channel and received by the channel that is received sequentially or fixedly A television receiving method comprising: an extraction step; and a display control step of superimposing the extracted information on the program video being viewed and displaying it on a screen.   7. The television receiving method according to claim 6, wherein a channel designation step for allowing a user to select or designate a channel for receiving a data broadcast on the second tuner side, and keyword information stored in the storage means. And a keyword designating step for selecting or designating valid keyword information.

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