Image data readout time adjuster for a video-on-demand system
US5838362A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Oct 4, 1995 |
| Grant date | Nov 17, 1998 |
| Priority date | — |
| Expiry date | Oct 4, 2015 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N7/17336
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A data readout time adjuster to be used for a video-on-demand system includes the following units. A readout time adjusting data storage unit stores image data for adjusting readout time to be provided to subscribers who have not been assigned the readout right and are waiting for a start of a readout operation. The image data for adjusting readout time cause no inconvenience even if a transmission of the image data is interrupted any time. A readout start position check unit checks an expected time of an occurrence of the readout right and a readout start position at the expected time in response to an additional data transmission request. A readout control unit makes at least one of the readout unit and a private readout unit exclusively provided or the readout time adjusting data storage unit read the image data for adjusting readout time stored in the readout time adjusting data storage unit until the time of the occurrence of the readout right, for the subscribers who have checked the expected time and the readout start position. A readout time adjusting data transmission control unit controls the transmission unit to transmit the image data for adjusting readout time read by …
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.