Multiplex communications – Generalized orthogonal or special mathematical techniques – Particular set of orthogonal functions
Patent
1996-05-08
1998-03-31
Hsu, Alpus H.
Multiplex communications
Generalized orthogonal or special mathematical techniques
Particular set of orthogonal functions
370335, 375208, 375376, 379 58, 455 541, 455 71, H04B 7216, H04J 1302
Patent
active
057346399
ABSTRACT:
An exceptionally efficient operation is achieved through the use of orthogonal code divisional multiple access radio communication between a base station and a plurality of user handsets. Each user handset is provided with a local oscillator. The base station transmits a reference pilot/sounding signal which is received at the user handsets and the local oscillators at the user handsets are phase locked to the reference pilot/sounding signal.
REFERENCES:
patent: 4484355 (1984-11-01), Henke et al.
patent: 4541118 (1985-09-01), Eastmond et al.
patent: 4618996 (1986-10-01), Rafal et al.
patent: 4630283 (1986-12-01), Schiff
patent: 4912773 (1990-03-01), Schiff
patent: 5249202 (1993-09-01), Hillum et al.
patent: 5375140 (1994-12-01), Bustamante et al.
patent: 5414728 (1995-05-01), Zehavi
patent: 5577025 (1996-11-01), Skinner et al.
Viterbi, "CDMA Principles of Spread Spectrum Communication", Addison-Wesley Publishing Company, pp. 224-227, Jun. 1995.
Bustamante Herman
Magill David T.
Natali Francis
Hsu Alpus H.
Stanford Telecommunications, Inc.
Zegeer, Esq. Jim
LandOfFree
Wireless direct sequence spread spectrum digital cellular teleph does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Wireless direct sequence spread spectrum digital cellular teleph, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Wireless direct sequence spread spectrum digital cellular teleph will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-57565