KR20010046682A - Cursor position control method for broadcasting program guide - Google Patents

Abstract

PURPOSE: A method for controlling a position of a cursor in guiding of a broadcasting program is provided to control a position a cursor at a program on-air in current when a broadcasting program guide is requested. CONSTITUTION: If a user's key is inputted for displaying a broadcasting program guide, a TV micro computer transmits a command for displaying a broadcasting program guide to a micro processor through an interface unit. The micro processor checks a data slicer for detecting whether a broadcasting information(KBPS) exists for deciding whether a channel on-air in current is a channel set for a broadcasting program guide. If a broadcasting information exists, the micro processor decodes the broadcasting information(KBPS) and searches whether an on-air ID exists for searching a program on-air in current and positioning a cursor. If the on-air ID exists, the micro processor displays a broadcasting program guide with respect to all channels and controls for positioning a cursor on a broadcasting program on-air in current. A graphic controller reads broadcasting program guide data from a frame buffer and converts into a graphic form to be displayed on a screen actually, and outputs the data to a mixing device by processing for the cursor is positioned on a broadcasting program on-air in current. The mixing device inserts a broadcasting program guide signal in the output image signal of an image signal processing unit, and outputs to an image displaying device.

Description

CURSOR POSITION CONTROL METHOD FOR BROADCASTING PROGRAM GUIDE}

The present invention relates to a text broadcast receiver, and more particularly, to a method of controlling a cursor position when guiding a broadcast program.

In television broadcasting, a technique using a KBPS signal is used to provide various services to a user.

Korean Broadcasting Program System (KBPS) signal standard uses KBPS in a system equipped with an RF tuner such as a TV (TV) or VCR (VCR) by placing digital data on a horizontal scanning line in a VBI (; Vertical Blanking Interval) section of a television broadcast signal. After receiving a signal, the KBPS system decodes the signal and is a standard of a broadcast signal established to provide various services such as reservation recording of a television broadcast program.

The KBPS standard includes the following:

The packet PT1 transmitted in one second unit includes a current day, a current time, and an on-air ID.

Packet (PT2): Broadcasting station name (7 characters)

Packet (PT3 to PT6): Program data of the first to fourth weeks

That is, as described above, each broadcasting station can send program information for the current channel up to four weeks after the current date.

Packet (PT7): program display data, other codes, title data

Packet (PT8): Program Delete Data

Packet (PT9): Sort data for program type classification

Packet (PT10): Program detailed guide data

Accordingly, a service for guiding a broadcast program to a viewer can be provided using KBPS data of the above standard.

However, in the related art, when a broadcast program guide key is input, a preset broadcast program guide screen is displayed to find a broadcast program currently being viewed on the entire screen, and thus, it is inconvenient to obtain other broadcast program information.

Accordingly, an object of the present invention is to provide a cursor position control method for broadcast guidance, which is designed to place a cursor on a program currently being viewed when a broadcast program guide request is made in order to improve the conventional problem.

That is, according to the present invention, the initial position of the cursor is determined as the broadcast program position currently being viewed when guiding a broadcast program.

1 is a block diagram of a broadcast receiver for an embodiment of the present invention.

2 is a signal flow diagram for an embodiment of the invention.

Figure 3 is an exemplary view showing the cursor position in the broadcast program guide in the present invention.

Explanation of symbols on the main parts of the drawings

110: tuner 120: image signal processing unit

130: video mixer 140: video display device

150: TV Micro 210: Data Slicer

220: frame memory 230: graphics controller

240: interface unit 250: microprocessor

The present invention provides a video device for providing a broadcast program guide screen for a channel in order to achieve the above object, the step of determining whether there is a broadcast program guide request, and if there is a broadcast program guide request, the channel currently being watched is broadcasted Determining whether the channel is set for program guidance; if the channel is set as described above, displaying a cursor at a broadcast program position currently watching; and if there is no broadcast program information currently watching, the broadcast program corresponding to the current time. Displaying a cursor at a position; displaying a cursor on a broadcast program that is at the foremost among broadcast programs within a predetermined time based on the current time when there is no broadcast program corresponding to the current time; Broadcast within a certain time based on If there is no program, displaying a cursor on the entire broadcast program guide of the channel currently being viewed, and if the channel currently being viewed is not set for the broadcast program guide when a broadcast program guide is requested, the current program is displayed for all channels for which the broadcast program guide is set. Sequentially determining whether there is a program corresponding to the time and whether there is a program within a predetermined time based on the current time, and displaying a cursor, and broadcasting information of all channels for which the program guide is set is not detected. Therefore, when the location of the cursor is not determined, the first step of displaying the cursor on the entire area of the channel where the broadcast program guide is set is characterized.

Hereinafter, the present invention will be described in detail with reference to the drawings.

1 is a block diagram of a broadcast receiver for an embodiment of the present invention. As shown therein, a tuner 110 that receives a broadcast signal and tunes and detects a channel desired by a user, and a composite in the tuner 110. A video signal processor 120 for outputting an analog video signal through intermediate frequency processing such as a video signal CVBS, and a data slicer for separating a KBPS signal by inputting a composite video signal CVBS from the tuner 110. 210, a frame buffer 220 for storing the KBPS signal separated by the data slicer 210, and a display for displaying a broadcast program for all channels and a cursor in a currently broadcast program in the broadcast program guide mode. A graphics controller 230 that reads the KBPS signal stored in the frame buffer 220 and converts the data into a graphic format form, and the current room upon request for data input / output and broadcast guide display of the frame buffer 220. A microprocessor 250 for controlling the graphic controller 230 to determine a channel being transmitted to display broadcast programs of all channels and to position a cursor on a program currently being broadcast, and an output of the image signal processor 120. The image mixer 130 for mixing the signal and the output signal of the graphic controller 230 and outputting the mixed signal to the image display device 140, and controlling the tuning frequency of the tuner 110 in response to a user key input. It is configured as a TV microcomputer 150 that transmits this to the microprocessor 250 and transmits it to the microprocessor 250 through the interface unit 240 when a user key for a broadcast guide display request is input.

The function of the microprocessor 250 may be built in the TV microcomputer 150.

Referring to the operation and effect of the embodiment of the present invention configured as described above are as follows.

When the user selects a specific channel after turning on the power, the TV microcomputer 150 controls the tuner 110 to tune to the specific channel.

Accordingly, when the tuner 110 detects a broadcast signal of a specific channel and outputs a composite video signal (CVBS), the video signal processor 120 performs intermediate frequency processing to restore the original analog video signal, and then restores the analog video signal. The signal is transmitted to the image display device 140 through the image mixer 130 so that an image is displayed on the screen of the image display device 140.

In this case, the TV microcomputer 150 transmits the information on the current viewing channel to the microprocessor 250 through the interface unit 240.

Accordingly, the microprocessor 250 stores the information about the current viewing channel transmitted from the TV microcomputer 150 in the frame buffer 220, and the TV microcomputer 150 stores the information about the current channel whenever the channel is changed. The data is transmitted to the microprocessor 250.

In addition, a channel required by a user is set to display a broadcast program guide, and the set channel is transmitted to the microprocessor 250 and stored in the frame memory 220.

At this time, when the broadcast program guide channel is set as described above, the microprocessor 250 received from the TV microcomputer 150 decodes the KBPS signal extracted from the data slicer 210 to generate broadcast program guide data, and then frames. It is stored in the buffer 220.

Therefore, the broadcast program guide display for the set channel is possible.

Thereafter, the TV microcomputer 150 continuously checks whether there is a user key input for displaying a broadcast program guide while watching a broadcast program.

In this case, when the user key for displaying the broadcast program guide is input, the TV microcomputer 150 transmits a command to display the broadcast program guide to the microprocessor 250 through the interface unit 240.

Accordingly, the microprocessor 250 checks the data slicer 210 to determine whether there is broadcast information (KBPS) in order to determine whether the channel currently being viewed is a channel set for broadcast program guide.

At this time, if there is broadcast information (KBPS), the microprocessor 250 decodes the broadcast information (KBPS) and searches whether there is an on-air recognition name (OnAirID) in order to locate a program that is currently being viewed.

Therefore, if there is an on-air identification name (OnAirID), the microprocessor 250 controls the graphic controller 230 to display the broadcast program guide for all channels and to position the cursor on the broadcast program currently being viewed.

In this case, the graphic controller 230 reads the program guide data from the frame buffer 220, converts the program guide data into a graphic form to be actually displayed on the screen, and processes the cursor to be displayed at the position of the broadcast program currently being viewed. Will print.

Accordingly, when the image mixer 130 inserts a broadcast program guide signal into the output image signal of the image signal processor 120 and outputs the broadcast program guide signal to the image display device 140, the image display device 140 may display the example of FIG. 3. As shown in the figure, a broadcast program guide screen for all set channels is displayed and at the same time, a cursor is displayed at a broadcast program position currently being viewed.

If the broadcast reception state is not good and the recognition name OnAirIC is not extracted from the currently received broadcast information KBPS, the microprocessor 250 determines whether there is a program corresponding to the current time on the broadcast program guide screen.

At this time, if there is a broadcast program corresponding to the current time, the microprocessor 250 controls the graphic controller 230 to display the broadcast program guide for all channels and to position the cursor on the broadcast program corresponding to the current time. .

Accordingly, the graphic controller 230 reads the broadcast program guide data from the frame buffer 220, converts the program guide data into a graphic form to be actually displayed on the screen, and processes the cursor to be displayed at the broadcast program position currently being viewed. When outputting to the video display device 140 through the display of the broadcast program guide screen for the entire set channel on the screen of the video display device 140, the cursor is displayed at the position of the broadcast program corresponding to the current time.

If the broadcast program corresponding to the current time is not found on the broadcast program guide screen, the microprocessor 250 determines that the broadcast information (KBPS) for the program guide is not received, and determines whether the broadcast program corresponds to the predetermined time before and after the current time. For example, it is determined whether there is a broadcast program within 2 hours.

At this time, if there is a broadcast program within a predetermined time before and after the current time, the microprocessor 250 displays the broadcast program guide for all channels, and then moves the cursor to the first program of the broadcast program guide of the channel currently being viewed. The graphics controller 230 is controlled to continuously check the data slicer 210 to receive broadcast information KBPS.

Accordingly, the graphic controller 230 reads the program guide data from the frame buffer 220, converts the program guide data into a graphic form to be actually displayed on the screen, and displays the cursor in front of the program guide of the channel currently being viewed. By outputting to the video display device 140 through), the broadcast program guide screen for the entire set channel is displayed on the screen of the video display device 140 and at the front of the broadcast program guide of the broadcast program guide of the channel currently being viewed. The cursor is displayed.

If a broadcast program is not found within a predetermined time (for example, 2 hours) based on the current time in the broadcast program guide of the channel currently being viewed, the microprocessor 250 determines that there is no program information, and determines that there is no program information. The graphic controller 230 is controlled to position the cursor in the whole.

Accordingly, the graphic mixer 230 reads the program guide data from the frame buffer 220, converts the program guide data into a graphic form to be actually displayed on the screen, and then displays the cursor on the entire program guide of the channel currently being viewed. By outputting to the video display device 140 through the display of the broadcast program guide screen for the entire set channel on the screen of the video display device 140, the cursor is displayed for the entire broadcast program guide of the channel currently being watched .

If there is no broadcast information (KBPS) because the channel currently being viewed is not a channel set for the broadcast program guide, the microprocessor 250 broadcasts because there is no way to display the broadcast program guide on the screen of the image display device 140. The data slicer 210 checks whether there is broadcast information (KBPS) for the first channel set as the program guide channel.

Accordingly, if there is a program corresponding to the current time when there is broadcast information KBPS, the microprocessor 250 controls the graphic controller 230 to position the cursor at the corresponding program position.

If there is no program corresponding to the current time, if there is a program within a predetermined time (for example, 2 hours) from the current time, the microprocessor 250 may place the cursor on the broadcast program corresponding to the current time. Will be controlled.

In addition, in the broadcast program guide of the channel currently being viewed, if the broadcast program is not found within a predetermined time (for example, 2 hours) from the current time, the microprocessor 250 determines that there is no program information, and determines that there is no program information. The graphic controller 230 is controlled to position the cursor throughout the guide.

On the other hand, if the broadcast channel (KBPS) is not detected because the channel currently being viewed is not a channel set for the broadcast program guide, the channels for which the broadcast information (KBPS) has been detected are checked in order. The cursor is positioned by performing the same operation as that of the first allocated channel.

If the cursor position is not determined through the same process as described above, the microprocessor 250 displays the broadcast program guides for all channels and then places the cursor in the entire broadcast program guides of the first set channel. 230).

As described in detail above, when the broadcast program guide screen is displayed for the set channel, the present invention can conveniently search for another broadcast program by displaying a cursor at the broadcast program location being viewed, thereby providing convenience to the viewer. .

Claims (3)

A video apparatus providing a broadcast program guide screen, wherein the initial position of the cursor is determined to display a cursor at a broadcast program position currently being viewed on a broadcast program guide screen when a broadcast program guide request is made. Control method. A video device providing a broadcast program guide screen for a channel, comprising: a first step of determining whether there is a broadcast program guide request; and if the broadcast program guide request is received, whether the channel currently being viewed is a channel set for broadcast program guide. A second step of judging; a third step of displaying a cursor at a broadcast program position currently viewed if the channel is set; and a cursor at a broadcast program position corresponding to the current time if there is no broadcast program information currently watching A fourth step of displaying the cursor; a fifth step of displaying a cursor on the broadcast program that is at the earliest of the broadcast programs within a predetermined time based on the current time when there is no broadcast program corresponding to the current time; If there is no broadcast program within the predetermined time And a sixth step of displaying a cursor on the entire broadcast program guide of the channel being re-watched. According to claim 2, If the channel currently being watched when the broadcast program guide request is not set to the broadcast program guide, whether there is a program corresponding to the current time for all channels for which the broadcast program guide is set, within a predetermined time based on the current time A step of displaying a cursor by sequentially performing a process of determining whether there is a program, and if the position of the cursor is not determined because the broadcast information for all channels where the broadcast program guide is set is not detected, the broadcast program guide is first displayed. And displaying a cursor on the entire area of the set channel.