Data recording device, data recording method, data processing device, data processing method, program, program recording medium, data recording medium, and data structure
US8326117B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Nov 17, 2005 |
| Grant date | Dec 4, 2012 |
| Priority date | — |
| Expiry date | Jan 21, 2030 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N9/8244
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A variable speed reproduction is accomplished without sacrifice of picture quality. A controller 425 creates EP_map( ) in a clip information file with an address of RAPI extracted by an RAPI information extraction unit 423, PTS of an intra-picture immediately preceded by RAPI, and one of end positions of the intra-picture and second, third, and fourth reference pictured preceded by the intra-picture and stores EP_map( ) to an output server 426. In other words, the controller 425 copies a value close to a predetermined sector count (the number of sectors that can be read at a time in the encode process) of the end positions of the four reference pictures (1stRef_picture, 2ndRef_picture, 3rdRef_picture, and 4thRef_picture) to N-th_Ref_picture_copy, decides index_minus1 based on N-th_Ref_picture_copy and records it on a disc.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.