Pulse or digital communications – Spread spectrum – Direct sequence
Reexamination Certificate
2006-02-07
2006-02-07
Patel, Jay K. (Department: 2637)
Pulse or digital communications
Spread spectrum
Direct sequence
C375S148000, C375S150000, C370S510000
Reexamination Certificate
active
06996161
ABSTRACT:
A method and apparatus for data communication using signature sequences and spread spectrum techniques to reduce the effects of certain transmission impairments in a Wireless local area network (WLAN). The invention uses a number of correlators and M-ary Code Keying with a Supergold signature sequence for simultaneously generating a periodic signal for acquiring symbol synchronization, a difference squarewave signal for acquiring and maintaining chip synchronization and a sum signal for determining received signal strength and setting threshold levels.
REFERENCES:
patent: 5696789 (1997-12-01), Jones et al.
patent: 5781583 (1998-07-01), Bruckert et al.
patent: 5818887 (1998-10-01), Sexton et al.
patent: 6181729 (2001-01-01), O'Farrell
patent: 6366600 (2002-04-01), Agrawal et al.
patent: WO 99/33212 (1999-07-01), None
Andren, C., “A 2.4 GHz 11 MBps Baseband Processor for 802.11 Applications”, Harris Semiconductor, May 5, 1998.
Kozaki, T., et al., “A 156-Mb/s Interface CMOS LSI for ATM Switching Systems”, IEICE Transactions on Communications, Jun. 1, 1993, pp. 684-693.
Al-Dabbagh Ahmed
O'Farrell Timothy
Ghulamali Qutub
Lipsitz & McAllister LLC
Patel Jay K.
Supergold Communication Limited
LandOfFree
Data communication in a wireless local area network using... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Data communication in a wireless local area network using..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Data communication in a wireless local area network using... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3626348