Method and system for information dissemination using television signals
US6330334A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jul 26, 2000 |
| Grant date | Dec 11, 2001 |
| Priority date | — |
| Expiry date | Jul 26, 2020 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04H60/23
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A system and method of information dissemination that permits the user to listen to the specific content of information when and where he or she wants to. A radio or television receiver system receives information from an FM subcarrier, a television vertical blanking interval transmission, a television separate audio program transmission or a dedicated channel and stores the transmitted information in a memory. A user interface allows selection from the memory of the stored information via a set of menus controlling a hierarchical database, so as to access particular items of information. Typically the system includes RAM and/or a storage medium such as a digital audio tape,a magneto-optical mini-disk, a magnetic disk or optical disk, sufficient to store information for 10 hours of audio. A decompression device, accepts the accessed compressed digital audio information items which may have been encrypted and transforms them into spoken speech. The user interface is either by voice or a single or multi-position switch allowing scanning through and selection from the menu items. The signal for such a device is generated by converting analog audio signals into a digital audio data str…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.