Data reproducing method and data reproducing apparatus
US5841938A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Aug 29, 1995 |
| Grant date | Nov 24, 1998 |
| Priority date | — |
| Expiry date | Aug 29, 2015 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N9/8042
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Decoding data in a special mode is provided without frequent access to a disk. The reproduced data, corresponding to encoded video frames, is written to a storage memory during a normal mode. Attribute information is stored for each encoded video frame which includes the type of encoding for each encoded video frame and its position within the storage memory. In a special mode, encoded video frames are read from the storage memory in a special sequence. Encoded video frames needed to decode a respective encoded video frame are selectively read from the storage memory according to the attribute information. It becomes unnecessary in the present invention, therefore, to reproduce the data necessary for decoding during a special mode, thereby shortening access to the disk and smoothing reproduction of the encoded video frames during the special mode.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.