Issued Patents All Time
Showing 26–50 of 61 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6456331 | Method and apparatus for displaying textual or graphic data on the screen of television receivers | — | 2002-09-24 |
| 6441862 | Combination of VCR index and EPG | Henry C. Yuen, Roy J. Mankovitz, Elsie Y. Leung | 2002-08-27 |
| 6430359 | Apparatus and method using compressed codes for television program record scheduling | Henry C. Yuen, Kar Cheung Cho | 2002-08-06 |
| 6430358 | Universal remote including apparatus using compressed codes for video recorder control | Henry C. Yuen | 2002-08-06 |
| 6321381 | Apparatus and method for improved parental control of television use | Henry C. Yuen, Roy J. Mankovitz | 2001-11-20 |
| 6252634 | Method and apparatus for transmitting and downloading setup information | Henry C. Yuen, Allen Chang | 2001-06-26 |
| 6239794 | Method and system for simultaneously displaying a television program and information about the program | Henry C. Yuen, Roy J. Mankovitz, Elsie Y. Leung | 2001-05-29 |
| 6226793 | Apparatus and method for allowing rating level control of the viewing of a program | — | 2001-05-01 |
| 6204885 | Method and apparatus for displaying textual or graphic data on the screen of television receivers | — | 2001-03-20 |
| 6154203 | System and method for grazing television channels from an electronic program guide | Henry C. Yuen, Roy J. Mankovitz, Elsie Y. Leung | 2000-11-28 |
| 6147715 | Combination of VCR index and EPG | Henry C. Yuen, Roy J. Mankovitz, Elsie Y. Leung | 2000-11-14 |
| 6125231 | Method of adding titles to a directory of television programs recorded on a video tape | Henry C. Yuen, Roy J. Mankovitz, Carl Hindman, Hing Y. Ngai, Yee Kong Ng +1 more | 2000-09-26 |
| 6115057 | Apparatus and method for allowing rating level control of the viewing of a program | Roy J. Mankovitz | 2000-09-05 |
| 6091882 | Apparatus and method using compressed codes for recorder preprogramming | Henry C. Yuen | 2000-07-18 |
| 6091884 | Enhancing operations of video tape cassette players | Henry C. Yuen, Roy J. Mankovitz, Carl Hindman, Hing Y. Ngai, Yee Kong Ng +1 more | 2000-07-18 |
| 6072520 | System for improved parental control of television use | Henry C. Yuen, Roy J. Mankovitz | 2000-06-06 |
| 6049652 | Apparatus and method using compressed codes for recorder preprogramming | Henry C. Yuen | 2000-04-11 |
| 6028599 | Database for use in method and apparatus for displaying television programs and related text | Henry C. Yuen, Roy J. Mankovitz, Elsie Y. Leung | 2000-02-22 |
| 5995092 | Television system and method for subscription of information services | Henry C. Yuen, Roy J. Mankovitz, Elsie Y. Leung | 1999-11-30 |
| 5974222 | Apparatus and method using compressed codes for scheduling broadcast information recording | Henry C. Yuen | 1999-10-26 |
| 5970206 | Television calendar and method for creating same | Henry C. Yuen | 1999-10-19 |
| 5949471 | Apparatus and method for improved parental control of television use | Henry C. Yuen, Roy J. Mankovitz | 1999-09-07 |
| 5852478 | Vps compatible apparatus and method for selection of correct IR code sets | — | 1998-12-22 |
| 5724203 | Method and apparatus for determining addresses in time along a recording tape | Yee Kong Ng | 1998-03-03 |
| 5543852 | Apparatus and methods for avoiding loss of closed caption data when using extended data services | Henry C. Yuen, Wing P. Leung, Tony TAM | 1996-08-06 |