Patent · US Expired

Multispeed communications device

US7135996B1 · kind B1 · utility

6Cited by
1References
36Claims
0Family size

Assignee

Inventors

Key dates

Filing dateMay 9, 2005
Grant dateNov 14, 2006
Priority date
Expiry dateMay 9, 2025

Classification

  • Technology area (CPC H)Electricity
  • CPC primaryH03M5/20
  • WIPO fieldBasic communication processes
  • WIPO sectorElectrical engineering

Abstract

A physical layer device for a network device comprises a converter module that selectively converts an n-bit input to an m-bit output based on first and second mapping functions. A scrambler module selectively scrambles the m-bit output. An encoding module receives the m-bit output from the scrambler module and selectively maps the m-bit output based on the first mapping function to three level output signals and the m-bit output based on the second mapping function to four level output signals.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.