InvestorsHub Logo
Followers 37
Posts 9520
Boards Moderated 0
Alias Born 01/02/2003

Re: Gamco post# 297578

Tuesday, 10/26/2010 8:59:10 AM

Tuesday, October 26, 2010 8:59:10 AM

Post# of 432470
United States Patent 7,822,103
De , et al. October 26, 2010

--------------------------------------------------------------------------------
Fast joint detection base station


Abstract
A code division multiple access base station receives K data signals over a shared spectrum. The base station receives and samples a combined signal having the K transmitted data signals. A combined channel response matrix is produced. A block column of a cross correlation matrix is determined using the combined channel response matrix. Each block entry of the block column is a K by K matrix. A fourier transform of a complex conjugate transpose of the combined channel response matrix multiplied to the combined signal samples is taken. An inverse of a fourier transform of each block entry is multiplied to a result of the fourier transform to produce a fourier transform of the data vector. An inverse fourier transform of the data vector fourier transform is taken to produce data of the K signals.


--------------------------------------------------------------------------------
Inventors: De; Parthapratim (Camp Bell, CA), Pan; Kyle Jung-Lin (Smithtown, NY), Zeira; Ariela (Huntington, NY)
Assignee: InterDigital Technology Corporation (Wilmington, DE)

Appl. No.: 12/290,772
Filed: November 3, 2008

--------------------------------------------------------------------------------

Related U.S. Patent Documents

--------------------------------------------------------------------------------

Application Number Filing Date Patent Number Issue Date
10081304 Feb., 2002 6608859
10079334 Feb., 2002 7447255
10037710 Dec., 2001 6625203
60287431 Apr., 2001


--------------------------------------------------------------------------------

Current U.S. Class: 375/147 ; 370/342; 375/150
Current International Class: H04B 1/69 (20060101); H04B 7/216 (20060101)
Field of Search: 375/140,130,147,150,142 370/342,335,441,320


Gamco

Volume:
Day Range:
Bid:
Ask:
Last Trade Time:
Total Trades:
  • 1D
  • 1M
  • 3M
  • 6M
  • 1Y
  • 5Y
Recent IDCC News