Patent · US Active

Data scrambler generation of pseudo-random bit sequence for semi-stationary Q-mode signal

US7593476B2 · kind B2 · utility

0Cited by

2References

32Claims

0Family size

Assignee

Broadcom Corporation · US

Inventors

Arthur J. Carlson · Nevada City, US
Haixiang Liang · San Jose, US

Key dates

Filing date	May 3, 2006
Grant date	Sep 22, 2009
Priority date	—
Expiry date	Jun 3, 2027

Classification

Technology area (CPC H)Electricity
CPC primaryH04L25/03828
WIPO fieldDigital communication
WIPO sectorElectrical engineering

Abstract

In a data communication system, a transmitter of a modem, for example, uses a single scrambler to operate in a data communication mode and in a non-data mode. During the data communication mode the scrambler is used to scramble data for communication by the transmitter. During the non-data mode, the scrambler is used to generate a non-data mode signal for communication by the scrambler. The modem may be an ADSL modem, for example, in which case the data communication mode is SHOWTIME while the non-data mode may be Q-mode.

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