Multi-stream access scheme for high speed access and recording using a hard disk drive
US7647459B2 · kind B2 · utility
4Cited by
5References
46Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 25, 2002 |
| Grant date | Jan 12, 2010 |
| Priority date | — |
| Expiry date | Nov 25, 2022 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B2020/1074
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A system for high-speed access and recording includes a demodulator, a buffer memory, and a hard disk. During a write cycle, a content stream is stored in buffer memory and thereafter transferred to the demodulator. When the buffer memory reaches its storage capacity, its contents are transferred to the hard disk for storage. During a read cycle, contents from the hard disk are read and then stored in the buffer memory. The hard disk further includes includes a high-speed zone and a random-access zone, which are configured to operate in a high-speed mode, a random-access mode, and a buffer-cleaning mode.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.