CA2257658C - Systeme, appareil et methodes de distribution d'information a diffusion restreinte - Google Patents
Systeme, appareil et methodes de distribution d'information a diffusion restreinte Download PDFInfo
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- CA2257658C CA2257658C CA 2257658 CA2257658A CA2257658C CA 2257658 C CA2257658 C CA 2257658C CA 2257658 CA2257658 CA 2257658 CA 2257658 A CA2257658 A CA 2257658A CA 2257658 C CA2257658 C CA 2257658C
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Landscapes
- Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
- Television Systems (AREA)
Abstract
Des décodeurs autorisés (60) sont dotés de clés de réception (66) qui permettent de récupérer les données transmises, dont le code d'identification d'information (65) correspond à une clé de réception (66) du décodeur-récepteur, puis de les afficher sur l'écran vidéo. Des techniques de transmission d'information de pavé (72,1) et de transmission micrographique cellulaire permettent de réduire le volume des données transmises pour modifier les données de mise à jour, des cellules (72,1) de caractères étant transmises sous la forme d'un unique multiplet de données et les cellules (72,1) de données de pixel sous la forme d'un ensemble de multiplets de données. Chaque décodeur-récepteur (60) peut comprendre un certain nombre d'écrans vidéo identifiés séparément et de façon distinctive afin de permettre la transmission de données de mise à jour codées et d'autres messages destinés à des écrans vidéo particuliers. Le système comprend le multiplexage de signaux d'information relatif au marché financier et à des émissions de télévision, et la transmission des signaux multiplexés vers les décodeurs-récepteurs aux fins de l'affichage sélectif de différentes combinaisons d'informations.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US880,582 | 1992-05-08 | ||
| US07/880,582 US5321750A (en) | 1989-02-07 | 1992-05-08 | Restricted information distribution system apparatus and methods |
| CA002113078A CA2113078C (fr) | 1992-05-08 | 1993-05-07 | Systeme, appareil et methodes de distribution d'information a diffusion restreinte |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002113078A Division CA2113078C (fr) | 1992-05-08 | 1993-05-07 | Systeme, appareil et methodes de distribution d'information a diffusion restreinte |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2257658A1 CA2257658A1 (fr) | 1993-11-25 |
| CA2257658C true CA2257658C (fr) | 2000-09-12 |
Family
ID=25676917
Family Applications (3)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA 2257657 Abandoned CA2257657A1 (fr) | 1992-05-08 | 1993-05-07 | Systeme, appareil et methodes de distribution d'information a diffusion restreinte |
| CA 2257659 Expired - Fee Related CA2257659C (fr) | 1992-05-08 | 1993-05-07 | Systeme, appareil et methodes de distribution d'information a diffusion restreinte |
| CA 2257658 Expired - Fee Related CA2257658C (fr) | 1992-05-08 | 1993-05-07 | Systeme, appareil et methodes de distribution d'information a diffusion restreinte |
Family Applications Before (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA 2257657 Abandoned CA2257657A1 (fr) | 1992-05-08 | 1993-05-07 | Systeme, appareil et methodes de distribution d'information a diffusion restreinte |
| CA 2257659 Expired - Fee Related CA2257659C (fr) | 1992-05-08 | 1993-05-07 | Systeme, appareil et methodes de distribution d'information a diffusion restreinte |
Country Status (1)
| Country | Link |
|---|---|
| CA (3) | CA2257657A1 (fr) |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8073695B1 (en) | 1992-12-09 | 2011-12-06 | Adrea, LLC | Electronic book with voice emulation features |
| US7835989B1 (en) | 1992-12-09 | 2010-11-16 | Discovery Communications, Inc. | Electronic book alternative delivery systems |
| US7509270B1 (en) | 1992-12-09 | 2009-03-24 | Discovery Communications, Inc. | Electronic Book having electronic commerce features |
| US7849393B1 (en) | 1992-12-09 | 2010-12-07 | Discovery Communications, Inc. | Electronic book connection to world watch live |
| KR100289174B1 (ko) | 1992-12-09 | 2001-05-02 | 마크 홀린저 | 케이블 텔레비젼 전달 시스템을 위한 세트 탑 터미날 |
| US8095949B1 (en) | 1993-12-02 | 2012-01-10 | Adrea, LLC | Electronic book with restricted access features |
| US9053640B1 (en) | 1993-12-02 | 2015-06-09 | Adrea, LLC | Interactive electronic book |
| US7865567B1 (en) | 1993-12-02 | 2011-01-04 | Discovery Patent Holdings, Llc | Virtual on-demand electronic book |
| US7861166B1 (en) | 1993-12-02 | 2010-12-28 | Discovery Patent Holding, Llc | Resizing document pages to fit available hardware screens |
| CN109171701B (zh) * | 2018-07-05 | 2023-02-03 | 北京谷山丰生物医学技术有限公司 | 提高心电采集系统频率响应的方法及装置 |
-
1993
- 1993-05-07 CA CA 2257657 patent/CA2257657A1/fr not_active Abandoned
- 1993-05-07 CA CA 2257659 patent/CA2257659C/fr not_active Expired - Fee Related
- 1993-05-07 CA CA 2257658 patent/CA2257658C/fr not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CA2257658A1 (fr) | 1993-11-25 |
| CA2257659A1 (fr) | 1993-11-25 |
| CA2257657A1 (fr) | 1993-11-25 |
| CA2257659C (fr) | 2003-01-14 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request | ||
| MKLA | Lapsed | ||
| MKLA | Lapsed |
Effective date: 20080507 |