JP2004187179A - Digital broadcast transmitting and receiving device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a digital broadcast transmitting and receiving device provided with a display function for displaying a user-friendly program guide, which is constituted so as to receive at least two digital broadcast waves. <P>SOLUTION: The digital broadcast transmitting and receiving device is constituted so as to receive such as a digital BS broadcast wave and a CS broadcast wave. A CPU 13 is designed to control a tuner 2 to acquire program information superimposed on each of the broadcast waves and to store the information into a memory 14. The device is designed to make the program information of a broadcasting station under being received and the program information having been stored from other broadcasting station to be within a selecting range, to produce program list data to be displayed by a user's operation after selecting the program information of the BS broadcasting station even in viewing and listening the program of the CS broadcasting station, and to display the program guide on a screen by using an OSD circuit 12. <P>COPYRIGHT: (C)2004,JPO&NCIPI

Description

[0001]
[Industrial applications]
The present invention relates to a digital broadcast receiving device for receiving digital broadcast.
[0002]
[Prior art]
A digital broadcast receiving device that receives digital broadcasts using satellites or terrestrial waves 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 the plurality of channels included in the above by demultiplex processing, a digital signal of the selected channel is extracted, and a video / audio signal is output by decoding the digital signal.
[0003]
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 a program name, a program start time, a program continuation time, program content information, and program genre information. On the receiving device side, an EPG (Electronic Program) using an OSD (On Screen Display) function is used. The Guide) display function allows a user to select a desired program from multi-channel broadcasts.
[0004]
In general, the EPG screen has a vertical axis as a time axis and a horizontal axis as a channel number. By operating the up, down, left, and right direction keys provided on the remote control transmitter, the program guide can be scrolled up, down, left, and right. Then, for example, by placing a cursor on a desired program (changing the color) and pressing an enter key, a reservation process for the program is executed. As a conventional technique relating to such an EPG display, there is a technique in which a user inputs a date and a program table corresponding to the date is displayed (see Patent Document 1).
[0005]
[Patent Document 1]
JP-A-2002-101350
[Problems to be solved by the invention]
By the way, in digital broadcasting, a plurality of digital broadcasts such as BS (Broadcasting Satellite), CS (Communications Satellite), and terrestrial digital broadcasting are performed, and it is necessary to provide a broadcast receiving apparatus capable of receiving these digital broadcast waves. It is possible. Then, the user can use the above-described EPG screen in order to select a desired program from the plurality of broadcast waves.
[0007]
However, for example, the EPG screen of the CS digital broadcast cannot be displayed while the BS digital broadcast is being viewed, and the display of the EPG screen must be requested again after switching to the CS digital broadcast reception state.
[0008]
The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a digital broadcast receiving apparatus having a configuration capable of receiving two or more types of digital broadcast waves and having a convenient display function of a program guide.
[0009]
[Means for Solving the Problems]
In order to solve the above-mentioned problems, a digital broadcast receiving apparatus of the present invention, in a digital broadcast receiving apparatus configured to be able to receive two or more types of digital broadcast waves, transmits program information loaded on each broadcast wave. A storage unit for acquiring and storing the program information; a unit for creating display program guide data using the program information of the currently receiving broadcast station and the stored program information of the other broadcast station as a selection range; Means for changing a target program information portion to be used as the display program table data by an operation; and means for displaying a program guide on the screen based on the display program table data.
[0010]
With the above configuration, the program information of the currently receiving broadcast station (for example, a CS broadcast station) and the stored program information of another broadcast station (for example, a digital BS broadcast station) are displayed as selection ranges. Since the program guide data is created and the target program information portion to be used as the display program guide data is changed by a user's operation, for example, even when a program guide display instruction is given while viewing a program of the CS broadcast station, The program information of the digital BS broadcast station can be displayed by the operation.
[0011]
Further, a digital broadcast receiving apparatus of the present invention is a digital broadcast receiving apparatus configured to receive two or more types of digital broadcast waves, and acquires and stores program information carried on each broadcast wave. Storage means, means for creating display program guide data using the stored program information of a plurality of broadcast stations as a selection range, and means for changing a target program information portion to be the display program guide data by a user operation And means for displaying a program guide on the screen based on the display program table data.
[0012]
With the above configuration, display program guide data is created by using program information of a plurality of broadcast stations (for example, a CS broadcast station and a digital BS broadcast station) as a selection range, and the target is set as the display program guide data by a user operation. Since the program information portion is changed, for example, even when the display of the program guide is instructed while viewing an image of an external device such as a video, the program information of the CS broadcast station or the digital BS broadcast station is displayed by the user operation. Can be.
[0013]
The program information of the program column selected by the user on the program guide displayed on the screen may be read out from the storage means, and the receiving process of the program may be performed.
[0014]
The display program guide data may be created such that the program guide is switched and displayed on a broadcast station basis by a switching operation by a user.
[0015]
The program guide of the broadcast station being displayed on the program guide is scroll-displayed by the scroll operation by the user, and further scroll operation is performed in a state where the end portion of the program table of the broadcast station being displayed is displayed. Then, the display program guide data may be created so that a part of the program guide of another broadcasting station is displayed.
[0016]
The program guide of the broadcast station being displayed on the program guide is scroll-displayed by the scroll operation by the user, and further scroll operation is performed in a state where the end portion of the program table of the broadcast station being displayed is displayed. Then, the display program guide data may be created so that the display is switched to and displayed on a program guide of another broadcast station.
[0017]
It is preferable that the display of the program guide is changed by a user operation in accordance with the broadcast station priority set in advance by the user. Further, the display program table data may be created so that the broadcast station program table displayed first in the display of the program guide table is the program table of the currently viewed broadcast station.
[0018]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to FIGS. 1 to 4. Here, a case where a user watches BS digital broadcasting and 110 ° CS digital broadcasting is illustrated. FIG. 1 is a block diagram showing a digital broadcast receiving apparatus 30 according to this embodiment, FIG. 2 is an explanatory view exemplifying an EPG screen at the time of hierarchical display, and FIG. 3 is an explanatory view exemplifying an EPG screen at the time of parallel display. FIG. 4 is a flowchart showing the EPG screen display processing.
[0019]
The antenna 1 is arranged outdoors in a predetermined direction, and receives a digital broadcast signal transmitted from the BS and the CS. The antenna 1 generally includes a frequency converter, and supplies a received / frequency-converted signal to a tuner 2.
[0020]
The tuner 2 corresponds to digital BS and CS, and extracts a signal of a specific frequency from high-frequency digital modulation signals including video and audio data. That is, a process of selecting one from a plurality of digital broadcast transponders is performed. The tuner 2 includes a demodulation circuit, a deinterleave circuit, an error correction circuit, and the like, and demodulates the selected digital modulation signal to output a torus port stream.
[0021]
The demultiplexer (DEMUX) 3 separates the transport stream into a video stream of MPEG2 (Moving Picture Experts Group 2), an audio stream, a PSI / SI (Program Specific Information / Service Information), and the like. The demultiplexer 3 supplies the video stream and the audio stream to the AV decoder 4, and supplies program information (program name, program start time, program content, etc.) included in the PSI / SI to the CPU 13. The CPU 13 stores the received program information in the memory 14. Note that a plurality of channels are multiplexed in the transport stream, and a process for selecting an arbitrary channel from among these is performed by selecting a packet ID in the transport stream from the PSI / SI. This is possible by extracting data such as whether the data is multiplexed. Also, the selection of the transport stream can be performed based on the PSI / SI information.
[0022]
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 obtains a quantization coefficient and a motion vector by decoding the input variable-length code, and performs inverse DCT transform, motion compensation control based on the motion vector, and the like. The audio decoder decodes the input coded 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.
[0023]
The video processing circuit 5 receives the video data from the AV decoder 4, performs D / A conversion, and converts the data into, for example, a composite video signal. The audio 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.
[0024]
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, a video output terminal, and the like). The output unit is provided with a video / audio code 17 and a monitor including a picture tube 16a and a speaker 16b. 16 are connected.
[0025]
The OSD (on-screen display) circuit 12 outputs to the adder 20 video data based on character information and color information instructed by the CPU 13 to output. The adder 20 performs a process of incorporating the video data into the received video data output from the AV decoder 4. The OSD circuit 12 can display a menu screen, various setting screens, and the like in addition to the EPG screen.
[0026]
The remote control transmitter 10 has various keys and sends various commands to the broadcast receiving device 30. When the keys are operated, a signal light (remote control signal) indicating a command corresponding to the key is emitted. Sent from the department. The remote control light receiver 11 receives the signal light, converts the signal light into an electric signal, and supplies the electric signal to the CPU 13. The remote control transmitter 10 is provided with a key (EPG key) for displaying an EPG screen.
[0027]
The memory (for example, RAM, EEPROM, flash memory, etc.) 14 stores program information, user setting information, program data for operating the CPU 13, and the like, which are obtained from digital BS and CS broadcast waves.
[0028]
The CPU 13 performs overall control of the digital broadcast receiving apparatus 30, and particularly performs processing relating to generation of EPG display data as processing according to the present invention. That is, the CPU 13 creates EPG display data using the digital BS and CS program information as a selection range, and changes a target program information portion to be the EPG display data by a user operation. Hereinafter, a specific description will be given.
[0029]
The user operates, for example, the remote control transmitter 10 to select “program guide setting” from the menu items, and makes settings relating to the display processing of the EPG display. The user selects one of “tier display” and “parallel display” as the EPG display mode.
[0030]
FIG. 2 is an explanatory diagram exemplifying an EPG screen displayed when “tier display” is selected. The “hierarchical display” is such that the EPG display is switched and displayed in a cyclic manner, for example, from BS → CS1 → CS2 → EPG display OFF → BS by the user operating the EPG key. In the figure, a plurality of EPG displays are arranged in the depth direction of the screen so that a part of the display on the rear side is visible. However, on the display screen, the EPG display is performed using the entire screen. The user can set the priority regarding the hierarchical EPG display.
[0031]
Here, it is assumed that the user sets the priorities in the order of digital BS → CS1 → CS2, and further sets the display of the broadcast station to which the program being viewed belongs first. When the EPG key is operated when the program being viewed is present in, for example, CS1, the program column of the EPG display of CS1 is displayed at the center of the screen. In this case, the user repeatedly operates the EPG key to switch the state in the order of CS1, digital BS, CS2, and EPG display OFF. Note that the order may be switched in the order of CS1, CS2, digital BS, and EPG display OFF, considering that the order is prioritized. Further, in the case of a broadcast receiving apparatus capable of viewing analog broadcasts, if the EPG key is operated while analog broadcasts are being viewed (or while external devices (video, DVD video, etc.) are being viewed), the broadcast station of the broadcast station to which the viewed program belongs is displayed. Since there is no program guide, the EPG display of the digital BS of the first priority is performed.
[0032]
FIG. 3 is an explanatory diagram exemplifying an EPG display displayed when “parallel display” is selected. The "parallel display" means that the BS / CS program table is arranged in a horizontal line as if it is one large program table, and is scroll-displayed by a user's direction key operation across the BS program column / CS program column. . The user can set the order of priority for the parallel EPG display.
[0033]
Here, it is assumed that the user sets the priorities in the order of digital BS → CS1 → CS2, and further sets the display of the broadcast station to which the program being viewed belongs first. Then, when the EPG key is operated when the program being viewed is present in, for example, CS1, the program column of the EPG display of CS1 is displayed at the center of the screen. In this case, the order of the program table is as follows: CS1 → digital BS → CS2. It should be noted that the order may be prioritized, so that CS1 → CS2 → digital BS may be arranged. Also, in the case where the analog broadcast can be viewed, when the EPG key is operated during analog broadcast viewing, there is no program table of the broadcast station to which the viewed program belongs, so that the EPG display of the first priority digital BS is performed. I do it.
[0034]
FIG. 4 is a flowchart showing the EPG display processing. When an EPG key provided on the remote control transmitter 10 is operated (step S1), the CPU 13 determines whether or not “hierarchical display” is set as the EPG display mode (step S2). If the setting is "hierarchical display", it is determined whether the program being viewed contains program information (step S3). If the program being viewed contains program information, a program guide of the broadcast station being viewed is displayed (step S4). On the other hand, when the program being viewed does not include the program information (for example, during analog broadcast or video viewing), the first priority digital BS program guide is displayed (step S5).
[0035]
Further, the CPU 13 monitors whether or not the EPG key has been operated (step S6), and when operated, determines whether or not the program guide of all the broadcasting stations has been displayed (step S7). When the program guides of all the broadcasting stations are not displayed, the program guide of the next order is displayed (step S8), and the process returns to step S6. When YES is determined in the step S7, the EPG display is turned off and the display returns to the normal received program display state (step S19).
[0036]
On the other hand, if NO in step S2 (when “parallel display” is set), it is determined whether the program being viewed contains program information (step S9). If the program being viewed includes program information, the program guide of the broadcast station is displayed (step S10). On the other hand, when the program information is not included, the program table of the first priority digital BS is displayed (step S11).
[0037]
When the EPG key is operated (YES in step S12), CPU 13 turns off the EPG display and returns to the normal received program display state (step S19). Further, when a right scroll operation (for example, pressing the right direction key) is performed (YES in step S13), the CPU 13 determines whether the last channel column in the currently displayed broadcast station program table has been exceeded (step S14). If it exceeds, the head channel column of the next-priority broadcast station program table is incorporated and displayed (step S15). That is, scroll display is performed across the BS program column and the CS program column in the form shown by the thick dotted line in FIG.
[0038]
When a left scroll operation (for example, pressing the left direction key) is performed (YES in step S16), the CPU 13 determines whether or not the head channel column in the currently displayed broadcast station program table has been exceeded (step S17). If it exceeds, the program table is displayed by incorporating the last channel column of the previous priority (step S18).
[0039]
In the above scroll display, when a scroll operation is further performed in a state where the end portion of the program table of the broadcasting station being displayed is displayed, a part of the program table of another broadcasting station is displayed. But it is not limited to this. For example, when a scroll operation is further performed in a state where the end portion of the program table of the broadcast station being displayed is displayed, the program table of another broadcast station is switched and displayed (another broadcast program is displayed). A state in which a part of the station program table is displayed may be eliminated).
[0040]
When the user operates the remote control transmitter 10 to select a program column while the program guide is displayed, and presses, for example, the enter key, the CPU 13 reads out necessary information for receiving the program from the memory, 2 to receive the broadcast wave of the program and display it on the screen. Thus, for example, if the user causes the receiving device 30 to perform the EPG display while viewing the CS1 program and designates the program column on the BS program table, the state of the CS1 program viewing is changed to the BS program reception viewing. You will be able to migrate. Further, for example, it is possible to make a recording reservation or a viewing reservation of a BS program while viewing the CS1 program. For example, in the EPG display during the viewing of the CS1 program, the EPG display based on the latest program information can be performed for the CS1, but the display of the program table based on the previously acquired program information for the CS2 and the BS can be performed. Will be performed. Therefore, when a recording reservation or a viewing reservation of a CS2 program or a BS program during viewing of a CS1 program is made, a display such as "Do you want to obtain and confirm the latest program information? YESNO" is displayed, and when the YES button is operated. , The program information may be transferred to the BS.
[0041]
Further, in the above description, a receiving device capable of receiving BS digital broadcasting and CS digital broadcasting has been described as an example. . Since the tuner for receiving terrestrial digital broadcasting can operate independently of the BS / CS digital tuner, for example, the program information acquisition process can be performed behind the scenes while viewing CS, and an EPG display based on the latest program information can be performed. Further, the digital broadcast receiving apparatus can be configured using a personal computer on which a tuner board can be mounted.
[0042]
【The invention's effect】
As described above, according to the present invention, it is possible to provide an easy-to-use program guide display function with a configuration capable of receiving two or more types of digital broadcast waves.
[Brief description of the drawings]
FIG. 1 is a block diagram illustrating a digital broadcast receiving apparatus according to an embodiment.
FIG. 2 is an explanatory view exemplifying an EPG screen at the time of hierarchical display.
FIG. 3 is an explanatory diagram exemplifying an EPG screen at the time of parallel display.
FIG. 4 is a flowchart showing an EPG screen display process.
[Explanation of symbols]
1 antenna 2 tuner 3 demultiplexer (DEMUX)
4 AV decoder 12 OSD circuit 13 CPU
14 memory

Claims (8)

In a digital broadcast receiving apparatus configured to receive two or more types of digital broadcast waves, storage means for acquiring and storing program information loaded on each broadcast wave, Means for creating display program guide data using the program information and the stored program information of another broadcast station as a selection range, and means for changing a target program information portion to be the display program guide data by a user operation And a means for displaying a program guide on the screen based on the display program table data. In a digital broadcast receiving apparatus configured to be able to receive two or more types of digital broadcast waves, a storage means for acquiring and storing program information carried on each broadcast wave; Means for creating display program guide data with the broadcast station program information as a selection range; means for changing a target program information portion to be the display program guide data by a user operation; and Means for displaying a program guide on a screen. 3. The digital broadcast receiving apparatus according to claim 1, wherein program information in a program column selected by a user on a program guide displayed on a screen is read out from a storage unit, and reception processing of the program is performed. A digital broadcast receiving apparatus characterized by being performed. 4. The display program guide data according to claim 1, wherein the program guide is switched and displayed on a broadcast station basis by a switching operation by a user. A digital broadcast receiving apparatus characterized by the above-mentioned. 4. The digital broadcast receiving apparatus according to claim 1, wherein a program table of a broadcast station being displayed on the program guide is scroll-displayed by a scroll operation by a user, and the broadcast station being displayed is displayed. When the scroll operation is further performed while the end portion of the program table is displayed, the display program table data is created so that a part of the program table of another broadcast station is displayed. A digital broadcast receiving apparatus characterized by the above-mentioned. 4. The digital broadcast receiving apparatus according to claim 1, wherein a program table of a broadcast station being displayed on the program guide is scroll-displayed by a scroll operation by a user, and the broadcast station being displayed is displayed. When the scroll operation is further performed in a state where the end portion of the program guide is displayed, the display program guide data is created so that the display is switched to the program guide of another broadcast station and displayed. Digital broadcast receiver characterized by the following. The digital broadcast receiving apparatus according to any one of claims 1 to 6, wherein display transition of the program guide by user operation is performed in accordance with a broadcast station priority set in advance by a user. A digital broadcast receiving device characterized by the above-mentioned. 8. The digital broadcast receiving apparatus according to claim 1, wherein the program guide table first displayed in the display of the program guide table is the program table of the currently viewed broadcast station. A digital broadcast receiving device for creating display program table data.

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