Patent · US Active

System and method for transmitting a multiple format wireless signal

US7869409B2 · kind B2 · utility

5Cited by

1References

20Claims

0Family size

Assignee

Freeescale Semiconductor, Inc. · US

Inventors

Jorge Ivonnet · Chandler, US
Robert Mark Gorday · Wellington, US
Kevin McLaughlin · Troy, US

Key dates

Filing date	Mar 26, 2007
Grant date	Jan 11, 2011
Priority date	—
Expiry date	Nov 23, 2028

Classification

Technology area (CPC H)Electricity
CPC primaryH04L27/0012
WIPO fieldDigital communication
WIPO sectorElectrical engineering

Abstract

A multi-mode transmitter (301) is adapted to modulate a data packet (200) communicated by a wireless communications signal. The data packet includes a packet header comprising a preamble (201) and a start of frame delimiter (202), and a data payload comprising a payload data length portion (203) and a payload portion (204). The packet header is modulated with a spread spectrum technique. When transmitting a data payload in one mode, the data payload is also modulated with the spread spectrum technique. When transmitting a data payload in another mode, the data payload is modulated with a non-spread spectrum technique.

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