JP2005286949A - Digital broadcast receiver - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a digital broadcast receiver having a function for displaying a convenient program guide in a constitution capable of receiving two or more kinds of digital broadcast wave. <P>SOLUTION: Program information taken from a digital broadcast wave is stored in a memory of a broadcast receiver. When two or more EPG keys of a remote control transmitter are pressed, a CPU of the broadcast receiver takes out program information of time slots AM0:00-AM3:00 at 101ch and formes an EPG display frame A as for digital BS, and takes out program information of time slots AM0:00-AM3:00 at 51ch and forms an EPG display frame B as for CS. In addition, the CPU of the broadcast receiver takes out program information of time slots AM0:00-AM3:00 at 3ch and forms an EPG display frame C as for ground digital broadcast. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a digital broadcast receiving apparatus that receives a digital broadcast.

  A digital broadcast receiver that receives a digital broadcast using a satellite or a terrestrial wave selects an arbitrary broadcast wave from a plurality of broadcast waves received through a satellite antenna or a terrestrial antenna with a digital tuner, and selects the selected broadcast wave. An arbitrary channel is selected from among a plurality of channels included in the image by demultiplexing processing, a digital signal of the selected channel is taken out and decoded to output a video / audio signal.

  In such digital broadcasting, program information is transmitted in addition to transmitting video and audio in the same manner as conventional analog broadcasting. This program information includes various information such as program name, program start time, program duration, program content information, program genre information, etc., and an electronic program guide (OSD (on-screen display) function) is used on the receiving device side. By displaying EPG (Electronic Program Guide), it is possible to select a program desired by the user from among multi-channel broadcasting.

FIG. 5 illustrates a conventional EPG screen. In this EPG screen, the vertical axis represents the time axis, and the horizontal axis represents the channel number. As a conventional technique related to such EPG display, there is a technique in which a user inputs a date and a program guide corresponding to the date is displayed (see Patent Document 1).
JP 2002-101350 A

  By the way, in digital broadcasting, a plurality of digital broadcasts such as BS (Broadcasting Satellite), CS (Communications Satellite), and terrestrial digital broadcast are performed, and it is possible to provide a broadcast receiving apparatus capable of receiving the plurality of digital broadcast waves. Is possible. The above-described EPG screen can be used for the user to select a desired program from the plurality of broadcast waves.

  However, for example, the CS digital broadcast EPG screen cannot be displayed while viewing the BS digital broadcast, and after switching to the CS digital broadcast reception state, the display of the EPG screen must be requested again.

  In view of the above circumstances, an object of the present invention is to provide a digital broadcast receiving apparatus having a display function of an easy-to-use electronic program guide having a configuration capable of receiving two or more kinds of digital broadcast waves.

  In order to solve the above problems, a digital broadcast receiving apparatus of the present invention can receive at least a first type digital broadcast and a second type digital broadcast and extract program information from each digital broadcast. In the screen display of the electronic program guide, at least an electronic program guide display frame for the first digital broadcasting and an electronic program guide display frame for the second digital broadcasting are secured, and each program column is displayed in these display frames. It is characterized by being configured to be displayed with the time zone matched.

  With the above configuration, it is possible to provide an easy-to-use electronic program guide display function with a configuration capable of receiving two or more types of digital broadcast waves.

  In the digital broadcast receiving apparatus configured as described above, each electronic program guide may be created based on a program or channel designated by the user. In addition, information about programs or channels designated by a plurality of users may be stored, and the electronic program guide may be created for each user.

  Further, in the digital broadcast receiving apparatus having these configurations, when a scroll command in the channel axis direction is given in a state where one electronic program guide display frame is selected by a user operation, the channel axis is displayed within the one electronic program guide display frame. It is preferable that the direction scroll process is performed.

  In addition, the digital broadcast receiving apparatus having these configurations may be provided with one or a plurality of decoders in order to extract program information from each digital broadcast wave. Further, when a program is selected by the user on the electronic program guide displayed on the screen, it is preferable to perform processing for receiving the program.

  As described above, according to the present invention, it is possible to provide an easy-to-use electronic program guide display function with a configuration capable of receiving two or more types of digital broadcast waves.

  Hereinafter, embodiments of the present invention will be described with reference to FIGS. 1 to 4. Here, a configuration example capable of receiving all of CS broadcasting, BS digital broadcasting, and terrestrial digital broadcasting is shown.

  FIG. 1 is a block diagram showing a digital broadcast receiving apparatus 30 of this embodiment. The antenna 1A is arranged outdoors in a predetermined direction, and receives a digital broadcast signal transmitted from the CS and the digital BS. This antenna 1A is generally provided with a frequency converter, and supplies the received / frequency converted signal to the satellite digital tuner 2A. The satellite digital tuner 2A receives CS and BS digital broadcasts. The antenna 1B receives a terrestrial digital broadcast signal and applies it to the terrestrial digital tuner 2B.

  The tuners 2A and 2B take out a signal of a specific frequency from the high frequency digital modulation signal including video / audio data. Further, the tuners 2A and 2B include a demodulation circuit, a deinterleave circuit, an error correction circuit, and the like, thereby demodulating the selected digital modulation signal and outputting a transport stream.

  The demultiplexer (DEMUX: TS decoder) 3 inputs a transport stream from the tuners 2A and 2B based on a command from the CPU 13, and operates a video stream, an audio stream, and a PSI / SI (MPEG2 Moving Moving Experts Group 2). Separated into attached information such as Program Specific Information / Service Information).

  The demultiplexer 3 selects a CS / BS digital broadcast or terrestrial digital broadcast video / audio stream according to an instruction from the CPU 13 and supplies the selected video / audio stream to the AV decoder 4, and program information (program name, program start time) included in the PSI / SI. , Program content information, program genre information, etc.) are supplied to the CPU 13. Although one demultiplexer (TS decoder) 3 is shown in FIG. 1, it may be provided for each tuner. In this case, it becomes easy to obtain BS digital or terrestrial digital broadcast program information behind the scenes while viewing the CS broadcast.

  The AV decoder 4 includes a video decoder that decodes a video stream and an audio decoder that decodes an audio stream. The video decoder decodes the input variable length code to obtain a quantization coefficient and a motion vector, and performs inverse DCT transform, motion compensation control based on the motion vector, and the like. The audio decoder decodes the input encoded signal to generate audio data. The video data generated by the decoding is output to the video processing circuit 5, and the audio data is output to the audio processing circuit 6.

  The video processing circuit 5 receives video data from the AV decoder 4 and performs D / A conversion, for example, to convert it into a composite video signal. The audio signal processing circuit 6 receives the audio data output from the AV decoder 4 and performs D / A conversion to generate, for example, a right (R) sound analog signal and a left (L) sound analog signal, Generates analog signals of audio and sub audio.

  The video output circuit 7 and the audio output circuit 8 include an output resistor, an amplifier, and the like. The AV output terminal 9 is provided with an output unit (a set of left and right audio output terminals and video output terminals), and a monitor 16 having a CRT 16a and a speaker 16b is connected to the output unit by a video / audio code 17. Is done.

  The OSD (on-screen display) circuit 12 generates video data based on character information and color information instructed to be output from the CPU 13 and outputs the video data to the adder 20. The adder 20 performs processing for incorporating the video data into the received video data output from the AV decoder 4. The OSD circuit 12 displays a menu screen, a message screen, and the like.

  The remote control transmitter 10 is a transmitter for sending a command to the broadcast receiving device 30. When each key of the remote control transmitter 10 is operated, signal light (remote control signal) indicating a command corresponding to the key is transmitted from a light emitting unit (not shown). The remote control light receiver 11 receives the signal light, converts it into an electric signal, and gives it to the CPU 13. In this embodiment, the remote control transmitter 10 is provided with a “normal EPG” key and a “multiple EPG” key. Of course, one EPG key is provided, and in the user setting of the menu screen, either “normal EPG” or “multiple EPG” is selected, and the one EPG key is selected as the “normal EPG” key or “multiple EPG”. You may make it function as a key.

  The memory (for example, RAM, EEPROM, flash memory, etc.) 14 stores program information, user setting information, and the like acquired from the broadcast waves of the digital BS, CS, and terrestrial digital.

  The CPU 13 performs overall control in the digital broadcast receiving apparatus 30. In particular, as processing according to the present invention, generation of a plurality of EPGs, display processing thereof, and the like are performed.

  In generating a plurality of EPGs, the CPU 13 creates a plurality of EPGs based on program information acquired from the broadcast waves of the digital BS, CS, and terrestrial digital. That is, as shown in FIG. 2, an EPG display frame A of digital BS, an EPG display frame B of CS, and an EPG display frame C of terrestrial digital are secured in the screen display of EPG. Each program column is displayed with the same time zone.

  More specifically, as shown in FIG. 3, for the digital BS, the CPU 13 takes out the program information of the time zone AM0: 0 to AM3: 00 in 101ch from the memory 14 and creates an EPG display frame A. For CS, the program information of the time zone AM0: 0 to AM3: 00 in 51ch is extracted from the memory 14 to create an EPG display frame B. For terrestrial digital, the time zone AM0: 0 to AM3: 00 in 3ch is created. The program information is extracted from the memory 14 and an EPG display frame C is created.

  The above-mentioned channels 101, 51, 3 are designated in advance by the user, are channels that have been viewed last time in each broadcast, or are channels that have been viewed most frequently based on the viewing history for each broadcast. .

  Here, the CPU 13 process will be described by taking as an example a case where a plurality of EPG keys are pressed during BS digital viewing. It is assumed that BS digital and CS program information is already stored in the memory 14. When detecting the pressing of the plurality of EPG keys, the CPU 13 switches the tuner output to the terrestrial digital tuner as shown in FIG. 4 (step S1). Next, program information is acquired by a terrestrial digital TS decoder (step S2). Then, an EPG display frame A of the digital BS, an EPG display frame B of the CS, and an EPG display frame C of the terrestrial digital are created in the screen display of the EPG, and each program column is displayed in these display frames. (Step S3).

  For example, the user selects an item such as “multiple EPG program / channel designation” on the menu screen. When this item is selected, the CPU 13 displays an input frame for selecting CS / BS / terrestrial, an input frame for inputting a program name, and a channel number input frame on the screen. When information is input to the input frame, the CPU 13 stores the input information in the memory 14. Further, the number of the channel in which the program having the input program name exists is searched based on the program information in the memory 14. Information on programs or channels designated by a plurality of users may be stored, and the electronic program guide may be created for each user. In this case, a user name input frame is created as the input frame. When a plurality of EPG keys are pressed, user selection items are displayed, and a plurality of EPG screens of the selected user are displayed.

  When the CPU 13 detects the operation of the direction key (cross key) of the remote control transmitter 10 in the display state of the plurality of EPGs, the CPU 13 moves the cursor (color change area) up, down, left and right. The cursor can be moved not only to each program column but also to the triangular arrow on the scroll bar (D1, D2, D3) for each broadcast. For example, when the CPU 13 detects that the determination key is pressed while the cursor is placed on the right triangle arrow of the BS digital broadcast scroll bar, for example, the CPU 13 reads the BS digital 102ch program information from the memory 14. Then, instead of the display state of FIG. 2, the 102-channel program information is displayed in the BS digital EPG.

  On the other hand, as described above, when 101 ch and 104 ch are designated in BS digital by “multiple EPG program / channel designation”, the CPU 13 displays 104 ch program information instead of 102 ch. As described above, the user can efficiently search for programs on a plurality of EPGs by designating favorite programs and channels in advance. Note that if the program information is acquired only for the channel designated by “multiple EPG program / channel designation”, the time required to obtain the program information is shortened.

  When a program is selected by a user on a plurality of EPGs (the cursor is moved to a desired program column and the enter key is pressed), the CPU 13 performs processing for receiving the program (digital tuner switching processing or TS decoder). Command). Therefore, by pressing a plurality of EPG keys while viewing a BS digital program, selecting a desired digital terrestrial program column on the plurality of EPGs, and pressing a decision key, the desired digital terrestrial program can be viewed.

1 is a block diagram showing a digital broadcast receiver according to an embodiment of the present invention. It is explanatory drawing which illustrated the multiple EPG screen. It is explanatory drawing which showed the image of the production | generation of the multiple EPG screen of FIG. It is the flowchart which showed the outline of the user setting regarding an EPG screen. It is explanatory drawing which illustrated the conventional EPG screen.

Explanation of symbols

1 Antenna 2 Tuner 3 Demultiplexer (DEMUX)
4 AV decoder 12 OSD circuit 13 CPU
14 memory

Claims (6)

In a digital broadcast receiver capable of receiving at least a first format digital broadcast and a second format digital broadcast and extracting program information from each digital broadcast, at least the first format digital broadcast is displayed in the screen display of the electronic program guide. The electronic program guide display frame and the electronic program guide display frame of the second system digital broadcasting are secured, and each program column is displayed in the display frame with the same time zone. A digital broadcast receiver. 2. The digital broadcast receiving apparatus according to claim 1, wherein each electronic program guide is created based on a program or channel designated by a user. 3. The digital broadcast receiving apparatus according to claim 2, wherein information on programs or channels designated by a plurality of users is stored, and the electronic program guide is created for each user. A digital broadcast receiver characterized by the above. 4. The digital broadcast receiver according to claim 1, wherein when one electronic program guide display frame is selected by a user operation and a scroll command in the channel axis direction is given, the one electronic program guide frame is selected. A digital broadcast receiving apparatus configured to perform scroll processing in a channel axis direction within a program guide display frame. 5. The digital broadcast receiving apparatus according to claim 1, further comprising one or more decoders for extracting program information from each digital broadcast wave. 6. The digital broadcast receiving apparatus according to claim 1, wherein when a program is selected by a user on an electronic program guide displayed on a screen, a process for receiving the program is performed. A digital broadcast receiver characterized by that.

Images