JP2008141379A - Digital broadcast receiver - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To make even a small-sized monitor picture easy to see and to enable a user to easily make reservations for viewing, with respect to a digital broadcast receiver, especially, for vehicles. <P>SOLUTION: Program information is acquired from received digital data by a program information acquisition part 70, and only program information of programs to be broadcast after the present time or the end time of programs previously reserved for viewing, out of the acquired program information is extracted to accept reservations by a reservation control part 80. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a digital broadcast receiver, and more particularly to a digital broadcast receiver for in-vehicle use.

  Currently, terrestrial digital broadcasting has started in Japan. This terrestrial digital broadcasting employs an Orthogonal Frequency Division Multiplex (OFDM) modulation method, and there is little reproduction degradation of video and audio data, and stable reception is possible compared to analog broadcasting. For this reason, a complete transition from analog broadcasting to digital broadcasting will soon take place.

  In April 2006, broadcasting for mobile devices (1-segment terrestrial digital broadcasting, so-called one-segment broadcasting) was started. With the advent of this one-segment broadcasting, mobile terminals and portable terminals that can receive terrestrial digital broadcasting have been actively developed. In particular, many mobile terminals have been developed for in-vehicle use.

  Here, one of the features of digital terrestrial broadcasting is EPG (Electronic Program Guide). EPG data received by the receiver is displayed on a monitor screen like a television column in a newspaper, and the user can check program information and make viewing reservations by selecting the program he wants to watch while viewing the screen. .

  However, in the case of a mobile terminal intended for in-vehicle use, the monitor screen is smaller than that for home use, so even if a list of programs is displayed, it becomes difficult to select programs, so concentrate on driving Not desirable for drivers that need it.

Here, in Patent Document 1, a program name of at least one time zone of one channel of EPG data is displayed together with a channel name and time, and a switch for continuously changing and selecting the channel, A technique for simplifying the operation by using a switch for selecting by changing the time zone continuously is disclosed.
Japanese Patent Application Laid-Open No. 2004-200797

  However, in the conventional technology, only one program information is displayed on the monitor screen, so if you want to compare with the program information of other channels that can be viewed in the same time zone, a complicated operation is required. Necessary. In addition, since a program must be selected while moving on two axes, the channel axis direction and the time axis direction, there is a problem that it may become difficult to know which part of the program information is being searched.

The present invention has been made in view of the above points, and an object of the present invention is to make it easy to make a viewing reservation easily and easily even on a small monitor screen in a digital broadcast receiving apparatus for in-vehicle use. It is in.
Challenges

That is, the present invention is a digital broadcast receiving apparatus for receiving a digital broadcast,
A program information acquisition unit for acquiring a plurality of program information;
And a reservation control unit for extracting only program information scheduled to be broadcast after a predetermined set time from a plurality of program information acquired by the program information acquisition unit and receiving a viewing reservation. .

  As described above, according to the present invention, for example, even when a digital television broadcast is viewed using a small monitor in a car, viewing reservations can be made with a simple operation that is easy to view. In addition, because it is possible to make a series of viewing reservations at once, for example, if the driver completes the reservation procedure before driving, you can enjoy the reserved TV program without operating the device at all, You can concentrate on driving.

  Further, if the content information is acquired, it is possible to make a reservation in advance to enjoy alternative preferred music even if the desired program does not exist in the reserved time zone. For example, if the driver completes the reservation procedure before driving, he / she can enjoy the reserved TV program and favorite music without operating the device at all, and can concentrate on driving.

  In addition, if a route navigation unit that calculates route information to the destination that has been registered and the estimated arrival time is provided, driving required to arrive at the destination when making reservations for viewing digital TV broadcasts in the car Viewing reservations can be made efficiently only within the time range.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. The following description of the preferred embodiments is merely exemplary in nature and is in no way intended to limit the invention, its application, or its application.

<Embodiment 1>
FIG. 1 is a block diagram showing a configuration of a digital broadcast receiving apparatus according to Embodiment 1 of the present invention. As shown in FIG. 1, this digital broadcast receiving apparatus includes a radio wave receiving unit 10, a DEMUX (Demultiplexer) 20, a buffer 30, a viewing control unit 40, an output unit 50, an operation unit 60, a program information acquisition unit 70, a reservation control unit. 80 and a reservation information storage unit 90.

  The radio wave receiving unit 10 includes an antenna such as a whip (rod) antenna, a dipole antenna, a Yagi / Uda antenna, a parabolic antenna, a loop antenna, a dielectric antenna, and the like, and performs digital tuning from a digital broadcast wave by tuning a desired frequency. Data is extracted. In this digital data, video data, audio data, and the like of a plurality of channels are multiplexed according to a predetermined standard. Specifically, in the case of terrestrial digital broadcasting, the digital data conforms to the MPEG2-TS standard.

  The DEMUX 20 separates and extracts video data, audio data, PSI (Program Specific Information) / SI (Service Information), and the like of each channel from multiplexed data. Specifically, in the case of terrestrial digital broadcasting, video data is compressed by MPEG-2 (Moving Picture Experts Group) and audio data is compressed by AAC (Advanced Audio Coding). In the case of one-segment broadcasting, the video data is H.264. H.264 is compressed.

  The DEMUX 20 is configured by hardware or software, and may have a function of releasing encryption. Thereby, based on the key information stored in the B-CAS card or the like, the encrypted digital data can be decrypted and viewed.

  The buffer 30 temporarily stores data separated by the DEMUX 20, and more specifically, an arbitrary memory such as a volatile memory such as a DRAM (Dynamic Random Access Memory), a nonvolatile memory such as a flash memory, and the like. And a memory card such as an SD (Secure Digital) card and a hard disk device.

  The viewing control unit 40 reads the data stored in the buffer 30, decodes the read data, and outputs video or audio data. Specifically, it is configured to control the output timing of video or audio data using time information such as PTS (Presentation Time Stamp) information.

  The output unit 50 converts the video or audio data output from the viewing control unit 40 into a form that can be perceived by the user and presents it to the user. Specifically, video and audio can be presented to the user by an image output device such as a liquid crystal display, an organic EL display, and a surface electric field display, and an audio output device such as a speaker and headphones.

  The operation unit 60 is an input means for a user to perform a predetermined input operation, and is used for channel change, volume up / down, program viewing reservation, and the like. Specifically, it includes a keyboard, cursor keys, sticks, trackballs, buttons, a mouse, a remote controller, a touch panel, voice recognition, gesture recognition, a gyro sensor, and the like.

  The program information acquisition unit 70 reads and analyzes the PSI / SI data stored in the buffer 30. Here, PSI is information indicating to which program each ES (Elementary Stream) included in the TS belongs, and is defined in the MPEG2-TS standard. SI is defined by extending PSI and includes EIT (Event Information Table), TOT (Time Offset Table), and the like. The EIT includes a program name, broadcast date and time, contents, etc., so-called EPG is created based on such information. Here, TOT is information indicating the current date and time.

  The reservation control unit 80 receives a viewing reservation from the EPG.

  The reservation information storage unit 90 stores received viewing reservation information. Like the buffer 30, the reservation information storage unit 90 is an arbitrary memory such as a volatile memory such as a DRAM or a nonvolatile memory such as a flash memory, an SD card, or the like. It is composed of a memory card or hard disk device.

  FIG. 2 is a flowchart showing a viewing reservation procedure using the digital broadcast receiving apparatus according to the first embodiment. As shown in FIG. 2, first, in step S101, the program information acquisition unit 70 acquires EIT information included in the SI data stored in the buffer 30, and the process proceeds to the subsequent step S102.

  Next, in step S102, the reservation control unit 80 extracts program information of each channel from programs that can be viewed after the current time based on the EIT information, and the process proceeds to the subsequent step S103. The current time may be TOT or a built-in clock of the receiving device. Furthermore, time information acquired via a network or radio waves may be used.

  Next, in step S103, the program information extracted for each channel is displayed in a list on the monitor. FIG. 3 shows an example in which program information for viewing reservation is displayed as a list. In the example of FIG. 3, the current time is in the range of 13:00, particularly immediately before 14:00.

  FIG. 3A shows a case where one program starting at 14:00 for each channel is displayed. FIG. 3 (b) is broadcast until the end time in accordance with the program with the latest end time among the programs of all channels (“program name B1” of B television in the example of FIG. 3 (b)). The case where all the programs are displayed is shown.

  Here, the display format is as shown in a part of the television column of a newspaper, but the vertical axis may be a broadcasting station and the horizontal axis may be a time axis, and only a list of program names is displayed. It doesn't matter.

  Next, in step S104, a reservation selection by the user is accepted. For example, the selection cursor 300 may be moved by pressing a direction key (not shown) of the operation unit 60 and selected using an enter key (not shown).

  Note that it is not necessary to display program information for all channels on one screen of the monitor. If all channels cannot be displayed, an icon display indicating that scrolling is possible, such as a scroll cursor 310 shown in FIG. The programs related to the channels that could not be displayed in one screen may be sequentially displayed by pressing the right key.

  Further, as a process when the enter key is pressed, a transition to a reservation confirmation screen as shown in FIG. 4 may be made, or the process may be skipped. A confirmation screen 400 shown in FIG. 4 is an example in which the detailed content of the selected program is displayed. On the confirmation screen, the program reservation is finally decided by selecting “Yes” or “No”.

  If “yes” is selected here, the process proceeds to step S105. If “no” is selected, the process returns to the list display in step S103. In step S103, program information that can be viewed after the current time is displayed in a list. If the confirmation procedure of FIG. 4 is skipped, “Yes” is selected unconditionally, and the process proceeds to step S105.

  Next, in step S105, the selected program information is stored in the reservation information storage unit 90 as viewing reservation information, and the process proceeds to subsequent step S106.

  In step S106, confirmation is made with the user as to whether or not to end the reservation procedure. FIG. 5 is a diagram showing an example of a confirmation display. If “yes” is selected here, the reservation procedure is terminated, and if “no”, the process proceeds to step S107.

  Next, in step S107, program information of each channel is extracted from programs that can be viewed after the end time of the program selected in step S104 (after 15:54 in the example shown in FIG. 4), and in subsequent step S108. Proceed to

  In step S108, the extracted program information is displayed in a list on the monitor. FIG. 6 is an example in which program information for viewing reservation is displayed as a list. In the example of FIG. 6, since the end time of the program selected in step S104 is 15:54, program information after 16:00 is displayed.

  Next, in step S109, the program reservation is selected in the same procedure as in step S104. If “No” is selected on the confirmation screen, the process proceeds to step S108, and if “Yes” is selected, the program continues. Proceed to step S110. In step S110, the selected program information is stored in the reservation information storage unit 90 as viewing reservation information, and the process proceeds to subsequent step S111.

  Next, in step S111, confirmation is made with the user as to whether or not to end the reservation procedure. If the determination in step S111 is “YES”, the reservation procedure is terminated, and if the determination in step S111 is “NO”, the process returns to step S107.

  As described above, according to the digital broadcast receiving apparatus according to the first embodiment, for example, even when viewing a digital TV broadcast using a small monitor in a car, it is easy to view and reserve viewing by a simple operation. It can be performed. In addition, since reservations can be made consecutively at one time, for example, if the reservation procedure is completed before the driver starts driving, the reserved TV program can be enjoyed without operating the device at all during driving. Can concentrate on driving.

<Embodiment 2>
FIG. 7 is a block diagram showing the configuration of the digital broadcast receiving apparatus according to the second embodiment. Since the difference from the first embodiment is that the content storage unit 100 and the content information acquisition unit 110 are added, the same parts as those in the first embodiment are denoted by the same reference numerals, and only the differences will be described below. .

  As shown in FIG. 7, the content storage unit 100 is a storage area for storing music data and video data, and includes, for example, a hard disk, an SD card, a CD (Compact Disc), a DVD (Digital Versatile Disc), and the like. Has been.

  The content information acquisition unit 110 acquires a title name, performance time, and the like related to music or video data stored in the content storage unit 100.

  FIG. 8 is a flowchart showing a viewing reservation procedure using the digital broadcast receiving apparatus according to the second embodiment. As shown in FIG. 8, first, in step S101, the program information acquisition unit 70 acquires EIT information included in the SI data stored in the buffer 30, and then proceeds to step S201.

  Next, in step S201, the reservation control unit 80 extracts program information of each channel from programs that can be viewed after the current time based on the EIT information, and the content stored in the content storage unit 100. Information is extracted, and the process proceeds to subsequent step S103.

  FIG. 9 shows an example of displaying a list of program information for viewing reservation. In the example of FIG. 9, the current time is in the 16:00 range, particularly just before 17:00. Further, a CD is used as the content storage unit 100, and the artist name and album name are displayed together with program information as content information. Here, the reservation selection by the user in step S104 is preferably performed in a format in which program information and content information are mixed as shown in FIG. If the content is selected for reservation, reservation information “start CD playback from 17:00” is acquired.

  Hereinafter, steps S103 to S106 are the same as those in the first embodiment, and a description thereof will be omitted.

  If the determination in step S106 is “NO” (when the reservation procedure is not terminated), the process proceeds to step S202.

  In step S202, it is determined whether the reserved content is content information. If the determination in step S202 is “YES”, the process proceeds to step S203. When the determination in step S202 is “NO”, it is determined that the reserved content is program information, and the process proceeds to step S107.

  In step S203, the end time of the reserved content is calculated, program information that can be viewed after that time is extracted, and the process proceeds to the subsequent step S108. Here, for example, if the CD recording time is 42 minutes, the end time is 42 minutes later.

  It is often the case that a television program has an interval from the next program such as an end time of 17:54. For example, if the next reserved program starts at 18:00, there will be a period of 6 minutes when nothing is viewed. In order to make effective use of this time, for example, as shown in FIG. 10, a selection screen for playing an alternative channel, music, or video may be displayed to prompt the user to input. Specifically, by moving the selection cursor 1000, the HDD 1 can be selected from the television channel, CD, DVD, and HDD 1 (first hard disk).

  FIG. 11 shows an example in which program information for viewing reservation is displayed as a list. The reservation list may be displayed immediately after the reservation procedure according to the second embodiment is completed, or may be confirmed at a timing desired by the user. In the example of FIG. 11, it means that the content of the folder 4 recorded in the HDD 1 is reproduced between programs.

  Hereinafter, steps S108 to S111 are the same as those in the first embodiment, and thus description thereof is omitted.

  As described above, according to the digital broadcast receiving apparatus according to the second embodiment, in the case of making a reservation for viewing a digital TV broadcast in a vehicle, even if the desired program does not exist in the reserved time zone, the alternative preference You can make a reservation in advance to enjoy music. For example, if the driver completes the reservation procedure before driving, he / she can enjoy the reserved TV program and favorite music without operating the device at all, and can concentrate on driving.

<Embodiment 3>
FIG. 12 is a block diagram illustrating a configuration of a digital broadcast receiving apparatus according to the third embodiment. Since the difference from the first embodiment is that the route navigation unit 120 is provided, the same parts as those of the first embodiment are denoted by the same reference numerals, and only the differences will be described.

  As shown in FIG. 12, the route navigation unit 120 calculates route information and estimated arrival time from the current location to the destination when the user sets and registers the destination using the operation unit 60. The calculated route information and estimated arrival time are displayed on the monitor screen.

  FIG. 13 is a flowchart showing a viewing reservation procedure using the digital broadcast receiving apparatus according to the third embodiment. Hereinafter, steps S101 to S106 are the same as those in the first embodiment, and a description thereof will be omitted.

  As shown in FIG. 13, when the determination in step S106 is “NO” (when the reservation procedure is continued), the process proceeds to the subsequent step S301.

  In step S301, it is determined whether or not the end time of the program reserved for viewing exceeds the estimated arrival time calculated by the route navigation unit 120. If the determination in step S301 is “NO”, the process proceeds to step S107. If the determination in step S301 is “YES”, the reservation acceptance process is terminated.

  Hereinafter, steps S107 to S111 are the same as those in the first embodiment, and a description thereof will be omitted. Here, when the determination in step S111 is “NO”, the process proceeds to step S301, and it is determined again whether the end time exceeds the estimated arrival time.

  As described above, according to the digital broadcast receiving apparatus according to the third embodiment, when a digital TV broadcast is reserved for viewing in a vehicle, the viewing can be efficiently performed only within the range of the operation time required for arrival at the destination. Reservations can be made.

  In the third embodiment, the case where the route navigation unit 120 is provided in the digital broadcast receiving device according to the first embodiment has been described. However, the route navigation unit 120 is provided in the digital broadcast receiving device according to the second embodiment. It doesn't matter.

  As described above, the present invention is extremely useful and industrial because it has a highly practical effect that it is easy to view and easily reserve viewing even on a small monitor screen, especially in a digital broadcast receiving apparatus for in-vehicle use. The above availability is high.

It is a block diagram which shows the structure of the digital broadcast receiver which concerns on Embodiment 1 of this invention. It is a flowchart figure which shows the viewing reservation procedure using the digital broadcast receiver which concerns on this Embodiment 1. FIG. It is an example in which program information for viewing reservation is displayed as a list. It is an example of a confirmation screen display of a viewing reservation. It is an example of a confirmation display as to whether or not to continue the viewing reservation procedure. This is an example in which program information when viewing reservation is continued is displayed in a list. It is a block diagram which shows the structure of the digital broadcast receiver which concerns on this Embodiment 2. FIG. It is a flowchart figure which shows the viewing-and-listening reservation procedure using the digital broadcast receiver which concerns on this Embodiment 2. FIG. It is an example in which program information for viewing reservation is displayed as a list. This is an example in which channel information for content reservation and content storage areas are displayed as a list. It is an example in which viewing reserved information is displayed in a list. It is a block diagram which shows the structure of the digital broadcast receiver which concerns on this Embodiment 3. It is a flowchart figure which shows the viewing-and-listening reservation procedure using the digital broadcast receiver which concerns on this Embodiment 3.

Explanation of symbols

10 radio wave receiver 20 DEMUX
30 buffer 40 viewing control unit 50 output unit 60 operation unit 70 PSI / SI acquisition unit (program information acquisition unit)
80 reservation control unit 90 reservation information storage unit 100 content storage unit 110 content information acquisition unit 120 route navigation unit

Claims (6)

A digital broadcast receiving apparatus for receiving a digital broadcast,
A program information acquisition unit for acquiring a plurality of program information;
A digital broadcast reception comprising: a reservation control unit that extracts only program information scheduled to be broadcast after a predetermined set time from a plurality of program information acquired by the program information acquisition unit and receives a viewing reservation apparatus. In claim 1,
The digital broadcast receiver according to claim 1, wherein the set time is a current time or an end time of a program reserved for previous viewing. In claim 1 or 2,
A route navigation unit that calculates route information and estimated arrival time to the destination set and registered,
The reservation control unit is configured to end reservation reception after that when the end time of the program reserved for viewing exceeds the estimated arrival time calculated by the route navigation unit. Digital broadcast receiver. In claim 1,
A content storage unit for storing content;
A content information acquisition unit that acquires content information related to the content stored in the content storage unit,
The digital broadcast receiving apparatus, wherein the reservation control unit is configured to receive a viewing reservation based on the content information acquired by the content information acquisition unit together with the program information. In claim 4,
The digital broadcast receiver according to claim 1, wherein the set time is a current time, an end time of a previously reserved program, or an end time assumed based on a reproduction time of a previously reserved content. In claim 4 or 5,
A route navigation unit that calculates route information and estimated arrival time to the destination set and registered,
The reservation control unit is configured to end a subsequent reservation reception when an end time of the program or content reserved for viewing exceeds a scheduled arrival time calculated by the route navigation unit. A digital broadcast receiver.

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