Method and system for downloading and storing interactive device content using the horizontal overscan portion of a video signal
US7787050B2 · kind B2 · utility
Inventors
Key dates
| Filing date | Nov 13, 2008 |
| Grant date | Aug 31, 2010 |
| Priority date | — |
| Expiry date | Nov 13, 2028 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA63H2200/00
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A method and system for decoding and storing encoded control data delivered via the horizontal overscan area of a video signal. An interactive device performs behavior defined by control data encoded into a video signal that can be broadcast or played-back from video tape. The interactive device is equipped with a non-volatile memory that permits the control data to be stored for performance subsequent to, or during, the transmission session. The control data is delivered as a series of control data words that include genus codes identifying the interactive device to which the data word is directed. During a transmission session, control data words will be repeated, so that an interactive device receives several control data words with the same sequence number. Based on the relative gradings, the interactive device will replace previously received control data words of lower quality than subsequently received data words having the same sequence number.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.