Adaptive transmitter/receiver

Pulse or digital communications – Spread spectrum

Reexamination Certificate

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

Reexamination Certificate

active

07031368

ABSTRACT:
There is provided an adaptive transceiver device which estimates a path arrival direction of a desired wave signal by using a reception antenna weight of a k-th user adaptive reception unit using a control method based on the minimum mean square error (MMSE) standards and which generates a transmission antenna weight on the basis of the path arrival direction. The adaptive transceiver device is characterized in that in reception, a directivity pattern for suppressing interference caused by another user or a multi-path is formed, an arrival direction of a path is estimated from the reception antenna weight, and a transmission direction is predicted from the estimated arrival direction to generate a transmission antenna weight, and in transmission, a directivity pattern for decreasing interference to another user is formed and transmitted.

REFERENCES:
patent: 5303240 (1994-04-01), Borras et al.
patent: 5745858 (1998-04-01), Sato et al.
patent: 5781845 (1998-07-01), Dybdal et al.
patent: 5960330 (1999-09-01), Azuma
patent: 5999826 (1999-12-01), Whinnett
patent: 6037898 (2000-03-01), Parish et al.
patent: 6061553 (2000-05-01), Matsuoka et al.
patent: 6070086 (2000-05-01), Dobrica
patent: 6085104 (2000-07-01), Kowalski et al.
patent: 6091788 (2000-07-01), Keskitalo et al.
patent: 6154661 (2000-11-01), Goldburg
patent: 6192256 (2001-02-01), Whinnett
patent: 57-20001 (1982-02-01), None
patent: 5-41607 (1993-02-01), None
patent: 6-53870 (1994-02-01), None
patent: 6-61894 (1994-03-01), None
patent: 8-274687 (1996-10-01), None
patent: 10-285092 (1998-10-01), None
H. Wang, et al., “Adaptive Array Antenna Combined With Tapped Delay Line Using Processing Gain For Direct-Sequence/Spread-Spectrum Multiple Access System”,Shingakuron,vol. J75-B-II, No. 11, Nov. 1992, pp. 815-825.
S. Tanaka, et al., “The Performance of Decision-Directed Coherent Adaptive Diversity in DS-CDMA Reverse Link”, Technical Report of IEICE, RCS96-102, Nov. 1996, pp. 25-30.

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Adaptive transmitter/receiver does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Adaptive transmitter/receiver, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Adaptive transmitter/receiver will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-3577340

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.