Method and circuit for effecting a picture in a television set by means of digital convergence

• US 5,978,044 A
• Filed: 12/30/1996
• Issued: 11/02/1999
• Est. Priority Date: 12/30/1995
• Status: Expired due to Fees

• Current Assignee: Samsung Electronics Co. Ltd.
• Original Assignee: Samsung Electronics Co. Ltd.
• Inventors: Choi, Han-Joo
• Primary Examiner(s): Tung, Bryan
• Application Number:
  US08/774,615
• Time in Patent Office: 1,037 Days
• Field of Search: 348/806, 348/807, 348/745, 348/746, 348/747, 348/578, 348/581, 348/565, 348/556, 348/913
• US Class Current: 348/578
• CPC Class Codes: H04N 9/28 Arrangements for convergence or focusing

Abstract

A circuit for achieving a special effect in a television set (TV) by means of digital convergence, which includes an operating circuit for operating a digital convergence and a memory for storing special effect data. The circuit includes a first memory for storing special effect data, a second memory for storing standard coincidence data and a CPU for operating on the standard coincidence data so as to produce special effect data in accordance with a user instruction.

Claims

1. A method for achieving a special effect on a TV screen by means of digital convergence comprising:

selecting a special effect;

performing a color coincidence in accordance with the selected special effect so as to obtain special effect data;

accessing special effect data corresponding to said selected special effect;

performing an operation according to the accessed special effect data to generate a color coincidence signal; and

applying the color coincidence signal to a convergence coil so as to display the special effect on the TV screen.

2. The method according to claim 1, wherein the selecting of the special effect is performed by a user.

3. The method according to claim 2, wherein the user selects the special effect with a remote controller.

4. The method according to claim 1, wherein said performed operation includes D/A converting filtering and amplifying operations.

5. A circuit for achieving a special effect in a television set by means of digital convergence, comprising:

a central processing unit (CPU);

a program memory, connected to said CPU, for storing standard data;

a standard data memory, connected to said CPU, for storing color coincidence data;

a special data storing memory, connected to said CPU, for storing special effect data; and

a convergence coil coupled to an output of said CPU.

6. A circuit according to claim 5, further comprising a D/A converter coupled to said CPU, a filter coupled to said D/A converter, and an amplifier coupled between said filter and said convergence coil.

7. The circuit according to claim 5, wherein said standard data memory and said special data storing memory each comprises an EEPROM.

8. The circuit according to claim 5, further comprising a remote controller for sending instructions to said CPU representing a desired special effect.

9. A circuit as defined in claim 5, wherein said special data storing memory includes at least one of data for displaying a picture of aspect ratio 4:

3 at a screen of aspect ratio 16;

9, data for displaying a finer picture in the center of the screen relative to other areas of the screen, data for displaying a picture which provides a sense of being far and near the picture, data for displaying a cubic effect in a boundary region in connection with a PIP display, and data for displaying an enlarged picture.