Multispeed communications device
US7479906B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | May 9, 2007 |
| Grant date | Jan 20, 2009 |
| Priority date | — |
| Expiry date | Jul 20, 2027 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03M5/20
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A physical layer device comprises a mode selector that selects a mode. A clock selects a clock frequency from T clock frequencies based on the mode. A converter module selects one of N mapping functions based on the mode and converts an n-bit input to an m-bit output based on the selected one of the N mapping functions. A scrambler module scrambles the m-bit output or passes the m-bit output unchanged based on the mode. An encoding module modulates the m-bit output based on the selected clock frequency and one of M modulation modes selected based on the mode, where T, n, m, N and M are integers greater than one and n is not equal to m.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.