Playback method for use in a recording medium playing apparatus using information control signals
US5010417A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 21, 1988 |
| Grant date | Apr 23, 1991 |
| Priority date | — |
| Expiry date | Dec 21, 2008 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B2220/2545
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Playback method for use in an apparatus for playing a recording medium having a lead-in area, a first area in which only a coded information signal is recorded, and a second area in which a video format signal and a coded information signal are recorded by using a multiplexing operation. The method is characterized by the operations of reading information recorded in the lead-in area in response to a command, moving an information reading point of the pickup to the first area of the recording medium when subcode picture presence information, which indicates that a graphic code including picture information is inserted in a subcode of the coded information signal, is detected from information recovered from the lead-in area, and reproducing information of the first area preferentially to other areas of the recording medium.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.