Data storage/playback device and method
US6188831A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jan 27, 1998 |
| Grant date | Feb 13, 2001 |
| Priority date | — |
| Expiry date | Jan 27, 2018 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N5/9265
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
The invention provides a data storage/playback device and method. The data storage/playback device includes at least one time-series data pickup device, a time-series data storage, at least one user input detector and a controller. The controller acts to control the storage and playback of time-series data. The controller further includes a correspondence-relationship storing section, a compression section, a condition-matching section and a playback section. The controller determines important intervals of time-series data and intervals of less important time-series data. Based on this determination, the compression section of the controller compresses the important interval time-series data using a different compression process from that of the less important time-series data. Thus, the important interval time-series data is maintained with high quality and storage space is conserved.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.