Information transmission system utilizing both real-time data transmitted in a normal-in-time direction and in a retrospective-in-time direction
US5991811A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Sep 4, 1996 |
| Grant date | Nov 23, 1999 |
| Priority date | — |
| Expiry date | Sep 4, 2016 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N21/482
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An information transmit system includes a first communication element having a guaranteed quality required to transmit real-time information, and a second communication element different from the first communication element. The system also includes a transmission element for transmitting stored real-time information using the first communication element and for transmitting real-time data using the second communication element, where the real-time data using the second communication element has corresponding time stamps later in time than the real-time data transmitted by the first communication element. For example, a time stamp of the real-time data may be used to transmit the data in either a normal direction (using the first communication element), or in a retrospective direction (using the second communication element). The system also includes a storage element for storing the real-time data transmitted by at least the second communication element, and a switching element for monitoring a time stamp corresponding to the real-time data transmitted from the first communication element and a time stamp corresponding to the real-time data transmitted from the second communicatio…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.