JP2012256997A - Data broadcasting display control device and data broadcasting presence/absence display control method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a data broadcasting display control device that can surely inform the presence or absence of data broadcasting to a user who wishes to view data broadcasting.SOLUTION: A data broadcasting display control device comprises a data receiver for receiving DSMCC data and AIT data, a first determining unit for determining the presence or absence of data broadcasting by analyzing the AIT data, a second determining unit for determining the presence or absence of data broadcasting by analyzing the content of the DSMCC data when the presence of data broadcasting is determined in the first determining unit, and a display controller for displaying the presence or absence of data broadcasting on a display screen in accordance with the determination result of the second determining unit. The second determining unit analyzes the content of the DSMCC data when the determination result of the first determining unit represents the presence of data broadcasting, and determines the presence of data broadcasting when display data exist in the DSMCC data or remote control key operation processing exists in an application.

Description

  The present invention relates to a data broadcast display control apparatus and a data broadcast presence / absence display control method capable of notifying a user of the presence / absence of a data broadcast.

  In digital data broadcasting, the data broadcasting using AIT (Application Information Table) is currently the DVB (Digital Video Broadcasting) standard MHP (Multimedia Home Platform) and the Brazilian television broadcasting standard. There is GBTA of SBT VD standard. Here, the AIT has a value (control_code) for controlling the operation state therein, and can start and present an application when the control_code is 1 (AUTO_START) or 2 (PRESENT).

  Usually, a data broadcast display control apparatus capable of receiving a data broadcast displays on the screen the presence / absence of the data broadcast in order to notify the user that the data broadcast is currently being performed. As a method for determining the presence / absence of this data broadcast, there is generally a method for determining that there is a data broadcast when the AIT control_code is 1 (AUTO_START) or 2 (PRESENT). Further, as disclosed in Patent Document 1, there is a method of determining based on the presence or absence of DDB (Download Data Block) which is a data body of carousel data.

JP 2010-062966 A

  By the way, when the data broadcast is in a test broadcast, the AIT is transmitted, and even if the control_code is AUTO_START or PRESENT, the data broadcast data may not actually be transmitted.

  In the above case, when the presence / absence of data broadcasting is determined only by the value of control_code of AIT, the data broadcasting is displayed even though the data broadcasting does not start, and the user thinks that the data broadcasting is transmitted. However, there is a problem that data broadcasting is not actually displayed on the display screen, resulting in confusion for the user. Such a phenomenon can occur not only during test broadcasting but also when unintentional transmission is performed on the transmission side due to a broadcast accident such as a transmission operation error of a broadcasting station.

  In addition, even if it is determined by the presence or absence of the DDB that is the data body of the carousel data, if the data itself is meaningless or empty data, it is displayed on the display screen that there is data broadcasting. However, the operation result of the data broadcast is not recognized by the user, and it is considered that the data broadcast does not start, and there is a problem that the user is confused.

  Furthermore, even if a data broadcast is being broadcast, if the content of the data broadcast is not recognizable to the user that it is different from a normal television broadcast, there is no data broadcast for the user. It has the same meaning, and it is perceived that data broadcasting does not start, and there is a problem that it causes confusion to the user.

  Therefore, in order for the user to recognize that there is a data broadcast for the above problem, it is necessary to display an image or text by some data broadcast on the screen. And user operation needs to differ from the operation in normal television. That is, the application needs to acquire a remote control key operated by the user and perform some action.

  An object of the present invention is to provide a data broadcast display control apparatus and a data broadcast presence / absence display control method capable of reliably informing a user who desires to watch a data broadcast whether or not the data broadcast is present.

  In order to solve this problem, the data broadcast display control apparatus of the present invention includes a data receiving unit that receives DSMCC data and AIT data, and a first determination that analyzes the received AIT data to determine the presence or absence of data broadcasting. And a second determination unit that analyzes the content of the received DSMCC data and determines whether there is a data broadcast when the first determination unit determines that there is data broadcast, and a first determination unit and a second determination unit And a display control unit for displaying the presence / absence of data broadcast on the display screen according to the determination result of the first determination unit, and the second determination unit includes the content of the DSMCC data when the determination result of the first determination unit indicates the presence of data broadcast. When the display data exists in the DSMCC data or the application has a remote control key operation process, it is determined that there is data broadcasting.

  According to the present invention, it is possible to notify the user that there is a data broadcast only when a data broadcast that is meaningful to the user can actually be displayed, and it is misunderstood that there is a data broadcast even in the case of a test broadcast or a broadcast accident. The convenience of the user can be improved.

The block diagram which shows the structure of the data broadcast display control apparatus in Embodiment 1 of this invention. The flowchart which shows the data broadcast presence determination processing in Embodiment 1 of this invention.

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

(Embodiment 1)
FIG. 1 is a block diagram showing a configuration of a data broadcast display control apparatus according to Embodiment 1 of the present invention. The data broadcast display control device includes a data receiving unit 101, a data broadcast presence / absence first determination unit 102, a data broadcast presence / absence second determination unit 103, and a display control unit 104.

  The data receiving unit 101 extracts DSMCC (Digital Storage Media-Command and Control) data and AIT data from the selected digital broadcast, and sends it to the data broadcast presence / absence first determination unit 102 and the data broadcast presence / absence second determination unit 103. Output.

  The data broadcast presence / absence first determination unit 102 analyzes the AIT data received by the data reception unit 101 and determines the presence / absence of the data broadcast. Specifically, it is determined whether the value of control_code is 1 (AUTOSTART) or 2 (PRESENT), and in the case of 1 or 2, and the data reception unit 101 receives DSMCC data, the data It is determined that there is broadcast, and the determination result is output to the data broadcast presence / absence second determination unit 103.

  The data broadcast presence / absence second determination unit 103 analyzes the content of the DSMCC data received by the data reception unit 101 when the data broadcast presence / absence first determination unit 102 determines that the data broadcast is present, and displays display data (image data). If there is any display element such as or character), or if there is a remote control key operation process in the application (if the application has a description to acquire and operate the remote control code), it is determined that there is data broadcasting, and the determination result Is output to the display control unit 104.

  The display control unit 104 performs control to display the presence / absence of data broadcasting on a display screen of a display unit (not shown) in accordance with the determination result of the data broadcasting presence / absence second determination unit. Here, the data broadcast display control apparatus may include a display unit (not shown) as a component, or an instruction to display the presence / absence of data broadcast is displayed on a display unit (not shown) connected via a network or the like. It may be configured to output.

  Next, the data broadcast presence / absence determination process of the data broadcast display control apparatus of the present invention will be described in detail with reference to the flowchart of FIG.

  In step S101, the data broadcast presence / absence first determination unit 102 analyzes the AIT data received by the data reception unit 101. If the value of control_code is 1 (AUTOSTART) or 2 (PRESENT) and DSMCC data is received (“YES” in step S101), it is determined that there is data broadcasting, and the process proceeds to step S102. Otherwise ("NO" in step S101), it is determined that there is no data broadcast, and the process proceeds to step S106.

  In step S102, the data broadcast presence / absence second determination unit 103 analyzes the contents application of the DSMCC data received by the data reception unit 101, and proceeds to the determination process of step S103.

  In step S103, if the application contains some display elements such as image data and characters ("YES" in step S103) as a result of the analysis, the process proceeds to step S105, otherwise ("NO" in step S103). ”), The process proceeds to step S104.

  In step S104, if the analysis shows that the application acquires and operates a remote control code ("YES" in step S104), the process proceeds to step S105, otherwise ("NO" in step S104). Proceed to step S106.

  In step S105, control is performed to display information indicating the presence of data broadcasting on a display screen of a display unit (not shown). In step S106, control is performed to display information indicating that there is no data broadcast on a display screen of a display unit (not shown), or control not to display information indicating that data broadcast is present.

  In the present embodiment, information indicating the presence of data broadcasting is displayed on a display unit (not shown), but an LED or sound may be used.

  The same determination can be made even when the data broadcasting format is a presentation side document such as BML (Broadcast Markup Language) or NCL (Nested Context Language).

  The data broadcast display control apparatus according to the present invention can inform a user who wants to watch data broadcasts of the presence or absence of data broadcasts, and is thus useful for televisions, set top boxes, and the like.

101 Data Receiving Unit 102 Data Broadcast Presence First Judgment Unit 103 Data Broadcast Presence / No Second Judgment Unit 104 Display Control Unit

Claims (2)

A data receiver for receiving DSMCC data and AIT data;
A data broadcasting presence / absence first determination unit that analyzes the received AIT data and determines whether data broadcasting is present;
A data broadcast presence / absence second determination unit that analyzes the content of the received DSMCC data to determine the presence / absence of data broadcast;
A display control unit for displaying the presence / absence of data broadcasting on a display screen according to the determination result of the second determination unit for data broadcasting presence / absence,
The data broadcast presence / absence second determination unit analyzes the contents of the DSMCC data when the determination result of the data broadcast presence / absence first determination unit indicates that there is data broadcast, and the display data exists in the DSMCC data or A data broadcast display control device, characterized in that, when an application has a remote control key operation process, it is determined that there is a data broadcast. A data receiving step for receiving DSMCC data and AIT data;
A data broadcasting presence / absence first determination step of analyzing the received AIT data to determine the presence or absence of data broadcasting;
A data broadcast presence / absence second determination step of analyzing the content of the received DSMCC data to determine the presence or absence of data broadcast;
A display control step for displaying the presence / absence of the data broadcast on the display screen according to the determination result of the data broadcast presence / absence second determination step,
The data broadcasting presence / absence second determination step analyzes the content of the DSMCC data when the determination result of the data broadcasting presence / absence first determination step indicates that data broadcasting is present, and the display data exists in the DSMCC data or A data broadcast presence / absence display control method, characterized in that, when an application has a remote control key operation process, it is determined that there is a data broadcast.

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