System for high speed track accessing of disk drive assembly
US5917439A · kind A · utility
7Cited by
3References
4Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Dec 20, 1996 |
| Grant date | Jun 29, 1999 |
| Priority date | — |
| Expiry date | Dec 20, 2016 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03M7/16
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
The address of each track in a disk drive system is expressed in Gray code, and an appended bit of information is added to the Gray code, associated with the least significant bits thereof, the value of which is determined by the values of the most significant bits of the Gray code. The value of this appended bit is the same from Gray code to successive Gray code, as long as there are no changes in any significant bit between successive Gray codes, but the appended bit changes value when there is a change in a most significant bit between successive Gray codes.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.