Multiplex communications – Communication over free space – Combining or distributing information via code word channels...
Reexamination Certificate
2006-05-23
2006-05-23
Tung, Kee M. (Department: 2671)
Multiplex communications
Communication over free space
Combining or distributing information via code word channels...
Reexamination Certificate
active
07050418
ABSTRACT:
A modem is configured for demodulating a communication signal associated with a unique code-division multiple access (CDMA) code. The modem includes an adaptive matched filter and a vector correlator. The vector correlator generates filter coefficients for the adaptive matched filter based on signal distortion determined by the vector correlator. The vector correlator has a processing capacity of at least eleven chips whereby the vector correlator compensates for a known phase distortion and for multipath distortion ascertainable within its processing capacity. The adaptive matched filter processes communication signals with the unique CDMA code using coefficients generated by the vector correlator.
REFERENCES:
patent: 5533011 (1996-07-01), Dean et al.
patent: 5633889 (1997-05-01), Schilling
patent: 5757318 (1998-05-01), Reudink
patent: 5796776 (1998-08-01), Lomp et al.
patent: 6259687 (2001-07-01), Lomp et al.
patent: 6356555 (2002-03-01), Rakib et al.
patent: 6452918 (2002-09-01), Lomp et al.
patent: 0863620 (1998-09-01), None
patent: 97/24818 (1997-07-01), None
Kiyohito Tokuda et al.: “Analysis of a Distributed Antenna System and its Performance Under Frequency Selective Fading”—IEICE Transactions on Communications, vol. E77-B, No. 5, May 1, 1994, pp. 606-623; XP000540890, see Paragraph 1 and 2.1, Figure 1.
Kazakevich Leonid
Lomp Gary R.
Mesecher David K.
Polan Jeffrey S.
InterDigital Technology Corporation
Santiago Enrique L.
Tung Kee M.
Volpe and Koenig P.C.
LandOfFree
Modem for processing CDMA signals does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Modem for processing CDMA signals, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Modem for processing CDMA signals will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3530306