KR20040067695A - Method for displaying representative image each broadcasting channel - Google Patents

Abstract

PURPOSE: A method for displaying representative images by broadcasting channel is provided to capture representative images of each broadcasting channel to store the captured images, and to output the stored representative images as thumbnail images with broadcasting channel information, thereby effectively retrieving a large number of broadcasting channels. CONSTITUTION: A microcomputer performs an automatic channel tuning process(S10), tunes the first broadcasting channel(S11), and detects whether a broadcasting signal is normally received through the first channel(S12). If so, the microcomputer stores a captured image frame as a representative image or converts into a thumbnail image(S14). The microcomputer stores the thumbnail image, tuning information, a broadcasting channel number or a broadcasting station name(S15). If the tuning process is terminated(S16), the microcomputer stores each thumbnail image and channel information(S17). The microcomputer outputs the stored channel information and representative images(S19). If a user designates an optional thumbnail image, the microcomputer selects a broadcasting channel corresponding to the thumbnail image(S20).

Description

Method for displaying representative image by broadcasting channel {Method for displaying representative image each broadcasting channel}

The present invention provides a representative image display method for each broadcast channel for outputting and displaying the representative image for each broadcast channel together with the broadcast channel information in an optical disk device with a tuner and a broadcast receiver such as a VCR or a television. It is about.

In general, a broadcast receiver such as a television is equipped with an Auto Channel Tuning function for automatically tuning various broadcast channels, so that each broadcast channel is automatically scanned at the user's request or the system initial stage. Tuning information detected by the signal is stored and managed as broadcast channel information in the apparatus.

In addition, when the user selects and inputs a Channel Up / Down key provided in the remote controller while the broadcasting channel information is stored and managed as described above, the user may perform a series of operations for tuning the corresponding broadcasting channel. do.

On the other hand, an optical disc device such as a DVD-Recorder, a VCR, and the like include a tuner for tuning a broadcast channel, and an optical disc or video tape capable of recording a program of a desired broadcast channel. It is possible to record and record, and the optical disk device and V-Cal are also equipped with an automatic channel tuning function.

Accordingly, a user having such a television or an optical disk device with a built-in tuner, a V-Cal, and the like tunes to a desired broadcast channel using broadcast channel information detected and stored and managed by an automatic channel tuning operation. Done.

However, in recent years, new broadcasts such as cable broadcasts have been widely spread and commercialized. Also, as a large number of broadcast channels have been rapidly increased, the user can use his / her channel up / down keys or numeric keys provided on the remote control unit. It may be inconvenient to tune into any one broadcast channel, and when the channel is up / down, it is necessary to check the broadcast signal received through each broadcast channel on the video screen, so it takes a long time to tune into the desired broadcast channel. There is a problem.

Accordingly, the present invention has been made to solve the above problems, when the automatic channel tuning operation in the optical disk device with a tuner and various broadcast receivers such as VCR (TV) or television (TV). Representative image of each broadcasting channel to capture and manage the representative image of each broadcasting channel and store it in the device, and to output and display the representative image stored in the device as one or a plurality of reduced images according to a user's request. It is an object of the present invention to provide a video display method.

1 illustrates a configuration of a broadcast receiver applied to a representative video display method for each broadcast channel according to the present invention.

FIG. 2 is a table showing information stored in association with a representative image display method for each broadcasting channel according to the present invention.

3 is a view showing a broadcast channel list screen output and displayed by the representative video display method for each broadcast channel according to the present invention;

4 is a flowchart illustrating a method of displaying a representative image for each broadcast channel according to the present invention.

※ Explanation of code for main part of drawing

10: optical disc 11: optical pickup

12: VDP system 13: micom

14: memory 15: OSD generating unit

Representative image display method for each broadcast channel according to the present invention for achieving the above object, when performing the automatic tuning operation, to capture the image frame received through each broadcast channel, and to store as a representative image of the corresponding broadcast channel 1 step; Storing and storing the stored representative images together with broadcast channel information as a broadcast channel list; And outputting and displaying the broadcast channel list as an OS video selectable by the user.

Hereinafter, a preferred embodiment of a representative video display method for each broadcast channel according to the present invention will be described in detail with reference to the accompanying drawings.

FIG. 1 is a block diagram illustrating a broadcast receiver to which a representative video display method for each broadcast channel according to the present invention is applied. The broadcast receiver includes a tuner 10, a signal processor 11, a microcomputer 12, and a reduction. The image generator 13, the memory 14, and the OSD generator 15 may be included. The memory 14 may be a hard disk (HDD) or a flash memory.

In the meantime, the microcomputer 12 performs an automatic channel tuning operation of automatically scanning each broadcast channel by operating the tuner 10 according to an initial system or a user's request. As shown in FIG. 2, the video frames received and signal-processed through each broadcast channel are captured and stored and managed together with the broadcast channel information as the representative video for each broadcast channel in the memory.

In this case, in the representative image stored in the memory 14 together with the broadcasting channel information, the reduced image converted and generated by the reduced image generating unit 13 may be recorded and stored in the broadcast channel information. Tuning information for tuning a channel and a broadcast channel number or broadcast station name for allowing a user to identify a broadcast channel may be recorded.

In addition, when the user requests the display of the broadcast channel list, the microcomputer 12 operates and controls the OSD generator 15 and broadcast channel information and the representative image (Image) stored in the memory 14. #N) is searched and read and displayed on an OSD screen such as a television. For example, as shown in FIG. 3, the OSD screen of the television represents a broadcast channel number and the broadcast channel. A reduced image (Thumb_image_ # N) may be output.

In addition, when a user selects and designates one of the reduced images displayed as described above, the broadcast channel corresponding to the reduced image is tuned and the representative image of the broadcast channel is updated with a new image frame or a reduced image. A series of operations are performed, which will be described in detail below.

FIG. 4 is a flowchart illustrating a method for displaying a representative video for each broadcast channel according to the present invention. In the microcomputer 12, as described above, the tuner 10 is operated according to an initial system or a user request. By controlling the operation, a series of automatic channel tuning operations for automatically scanning each broadcast channel is performed (S10). At this time, the microcomputer 12 tunes the first broadcast channel (S11) and then selects the broadcast channel. Through the detection of whether the broadcast signal is normally received (S12).

On the other hand, when a broadcast signal is not detected through the broadcast channel, the next broadcast channel is tuned (S13). When a broadcast signal is detected through the broadcast channel, the signal processor 11 is operated to control the operation. And captures an image frame of the broadcast signal, and the microcomputer 12 stores the image frame captured through the above process in the memory 14 as a representative image of the corresponding broadcast channel. Operation of the reduced image generating unit 13 is converted to a reduced image of a predetermined size (S14).

Then, the converted reduced image and the corresponding broadcast channel information, for example, tuning information, a broadcast channel number or a broadcast station name, are stored in association with the memory 14 (S15). Until the above operation is repeated, when the broadcast channel tuning operation is completed (S16), the reduced image and broadcast channel information for each broadcast channel are stored and managed as broadcast channel list information (S17).

In addition, when the user requests the display of the broadcast channel list, the microcomputer 12 operates and controls the OSD generation unit 15 and broadcast channel information and the representative image (Image) stored in the memory 14. #N) is retrieved and read out and displayed on the OSD screen of the television as shown in Fig. 2 (S19).

And. When the user selects and designates one of the thumbnails, the user receives the broadcast channel corresponding to the thumbnail (S20), and performs a series of operations of updating the thumbnail of the broadcast channel to the thumbnail of the new video frame. Will be performed.

For reference, in the memory 14, an original image frame, not a reduced image, may be recorded and stored as a representative image of each broadcasting channel, and when the broadcasting channel list information is displayed, the image frame is converted and outputted. Can also be displayed.

Or more, preferred embodiments of the present invention described above, for the purpose of illustration, those skilled in the art, within the technical spirit and the technical scope of the present invention disclosed in the appended claims below, to further improve various other embodiments Changes, substitutions or additions will be possible.

Representative image display method for each broadcast channel according to the present invention configured and configured as described above, when the automatic channel tuning operation in the optical disk device with a tuner and various broadcast receivers such as VCR (VCR) or television (TV). By capturing and managing the representative image of each broadcasting channel in the device and storing and displaying the representative image stored in the device as a reduced image along with the broadcasting channel information according to a user's request, the user can see the rapidly increasing number of broadcasting channels. It is a very useful invention that can be efficiently search and check, and can also be selected and received by the user simply select the desired broadcast channel.

Claims (7)

Capturing an image frame received through each broadcast channel and storing it as a representative image of the corresponding broadcast channel when performing an automatic tuning operation; Storing and storing the stored representative images together with broadcast channel information as a broadcast channel list; And And displaying the broadcast channel list as an OSD image selectable by a user. The method of claim 1, And selecting one representative broadcast channel corresponding to the representative video when selecting and specifying the representative video output as the broadcast channel list. The method of claim 2, And updating and storing the video frame received through the broadcast channel selected by the representative video as the representative video of the broadcast channel. The method according to any one of claims 1 to 3, And the representative image is converted into a reduced image of a predetermined size and stored, or converted into a reduced image of a predetermined size and output. The method of claim 1, The broadcast channel information includes broadcast channel tuning information, a broadcast channel number, or a broadcast station name. The method of claim 1, In the step 1, Representative video display method for each broadcast channel, characterized in that for setting the representative video of the broadcast channel, the broadcast program video broadcast at the current time, a new representative video. The method of claim 1, In the step 3, the user-selectable OSD image is output as composed of a plurality of reduced images, the representative channel display method for each broadcast channel.