Serial data decoder
US5404139A · kind A · utility
3Cited by
3References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 5, 1992 |
| Grant date | Apr 4, 1995 |
| Priority date | — |
| Expiry date | Aug 5, 2012 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03M7/425
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A serial data decoder is described for decoding interleaved variable length and fixed length codes. The decoder includes a state machine which moves between a branching hierarchy of states in dependence upon the bits of received serial data. When the state machine reaches a state corresponding to a complete variable length code having been received, it then enters a delay state lasting for the length of time necessary to receive the following fixed length code prior to return to a reset state. The state machine can be implemented using a static ram 10 storing data including pointers for controlling the movements between states.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.