Method for writing and searching on a tape for a digital signal writing and reproducing device
US5991222A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 30, 1997 |
| Grant date | Nov 23, 1999 |
| Priority date | — |
| Expiry date | Dec 30, 2017 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B2220/91
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A method of writing and searching index data for a DVCR is disclosed. The method of writing index data for a DVCR includes the steps of writing a program number and performing a program writing at a position of a program start mark of a current program if a program writing command is input in the course of viewing a program, determining whether or not there is a program start mark of a program erased in the course of performing the program writing, writing a program end mark and index data if there is the program start mark of the erased program, and writing a program start mark of a next program. The method of searching index data for a DVCR includes the steps of displaying index data if an index reproduction key is input, searching and reproducing a program selected by a user among the displayed index data, and ejecting a tape after writing a new index data by moving the tape to a program end mark of a current program if an ejection key is input. The method of writing and searching index data for a DVCR has an advantage that it is easy to search a newly written program, in case that a new program is written on a program already written on the tape.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.