Device and method for modifying video image of display apparatus

• US 20040252238A1
• Filed: 06/10/2004
• Published: 12/16/2004
• Est. Priority Date: 06/13/2003
• Status: Active Grant

• Current Assignee: LG Electronics, Inc. (LG Corporation)
• Original Assignee: LG Electronics, Inc. (LG Corporation)
• Inventors: Park, Tae Jin, Paik, Woo Hyun, Hong, Su Dong, Bae, Sang Chul, Kim, Ick Hwan
• Granted Patent: US 7,304,685 B2
• Time in Patent Office: Days
• US Class Current: 348/556
• CPC Class Codes: H04N 21/440272 for performing aspect ratio conversion
• CPC Class Codes: H04N 21/4858 for modifying screen layout parameters, e.g. fonts, size of the windows
• CPC Class Codes: H04N 5/44504 Circuit details of the additional information generator, e.g. details of the character or graphics signal generator, overlay mixing circuits
• CPC Class Codes: H04N 7/0122 the input and the output signals having different aspect ratios

Abstract

A device and method for modifying a video image of a display apparatus method, for efficiently modifying a size and aspect ratio of a video image, is disclosed. The device includes an on-screen display (OSD) generator providing an on-screen display (OSD) on a display for programming a size and an aspect ratio of a video image, and a video processor modifying a displayed video image in accordance with the size and aspect ratio of the displayed video image programmed by a user. Herein, the video processor modifies the video image from a center point of the video image.

Claims

1. A device for modifying a video image of a display apparatus, comprising:

an on-screen display (OSD) generator providing an on-screen display (OSD) on a display for programming a size and an aspect ratio of a video image; and

a video processor modifying a displayed video image in accordance with the size and aspect ratio of the displayed video image programmed by a user.

2. The device according to claim 1, wherein the video processor modifies the video image from a center point of the video image.

3. The device according to claim 1, further comprising:

a tuner selecting broadcast signals;

a digital video decoder decoding a digital video signal among the selected broadcast signals and transmitting the decoded digital video signal to the video processor; and

an analog video decoder decoding an analog signal among the selected broadcast signals and transmitting the decoded analog signal to the video processor.

4. A method for modifying a video image of a display apparatus, comprising:

displaying an on-screen display (OSD) for programming a size and an aspect ratio of a video image;

programming one of a video size and a video aspect ratio from the on-screen display (OSD); and

modifying a displayed video image in accordance with one of the programmed video size and the programmed video aspect ratio.

5. The method according to claim 4, wherein the modifying a displayed video image in accordance with one of the programmed video size and the programmed video aspect ratio does not modify a size and aspect ratio of the on-screen display (OSD).

6. A device for modifying a video image of display apparatus, comprising:

a demultiplexer dividing received broadcast signals into a video signal, an audio signal, and supplementary information;

a video processor converting the video signal received from the demultiplexer into a displayable signal; and

a microcomputer controlling the video processor so as to adjust a size and aspect ratio of a displayed video image based on the supplementary information received from the demultiplexer.

7. The device according to claim 6, wherein the microcomputer adjusts the size and aspect ratio of a displayed video image based on a genre information included in broadcast programs.

8. The device according to claim 6, further comprising a memory storing a video size value and a video aspect ratio value corresponding to each genre of broadcast programs.

9. The device according to claim 6, further comprising a data processor providing a video image modifying menu for programming and storing a video size and a video aspect ratio for each genre of broadcast programs.

10. The device according to claim 9, wherein the video image modifying menu includes an item for programming a position of subtitles.

11. The device according to claim 9, wherein the video image modifying menu includes an item for changing a color of upper and lower portions of the displayed video image initially shown as a black screen.

12. A method for modifying a video image of a display apparatus, comprising:

dividing received broadcast signals into a video signal, an audio signal, and supplementary information; and

converting the video signal for adjusting a size and aspect ratio of a displayed video image based on a genre information of broadcast programs included in the supplementary information.

13. The method according to claim 12, further comprising displaying a video image modifying menu for programming and storing a video size and a video aspect ratio for each genre of broadcast programs.

14. The method according to claim 12, further comprising programming and storing a video size and a video aspect ratio for each genre of broadcast programs.