Decoding method and apparatus with maximum likelihood sequence estimation
US5392316A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jan 28, 1993 |
| Grant date | Feb 21, 1995 |
| Priority date | — |
| Expiry date | Jan 28, 2013 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L25/03178
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A magnetic recording apparatus includes a magnetic recording medium for recording a binary signal; a magnetic head for detecting the binary signal; an amplifier for amplifying the binary signal detected by the magnetic head; a channel for outputting the amplified binary signal in the form of a timing value sequence, the timing value sequence alternatively providing positive and negative peak values following the rule of the binary signal that recorded in the recording medium; a temporary judging unit for judging a presently input timing value of the timing value sequence supplied from the channel as one of the positive peak value, in accordance with the relationship with a preceding timing value temporarily judged as one of the positive and negative peak values; a final judging unit for finally setting the preceding timing value as one of the positive and negative peak values and the intermediate value, in accordance with the relationship with the presently input and temporarily judged timing value; a counter for counting the number of input bits of the timing value sequence; a unit for resetting the counter when the timing value temporarily judged as one of the positive and negati…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.