The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 03, 2011
Filed:
Feb. 14, 2005
Takumi Ito, Minato-ku, JP;
Shousei Yoshida, Minato-ku, JP;
Yoshikazu Kakura, Minato-ku, JP;
Hiroyuki Seki, Kawasaki-shi, JP;
Hiroyuki Kawai, Yokosuka-shi, JP;
Kenichi Higuchi, Yokohama-shi, JP;
Mamoru Sawahashi, Yokohama-shi, JP;
Takumi Ito, Minato-ku, JP;
Shousei Yoshida, Minato-ku, JP;
Yoshikazu Kakura, Minato-ku, JP;
Hiroyuki Seki, Kawasaki-shi, JP;
Hiroyuki Kawai, Yokosuka-shi, JP;
Kenichi Higuchi, Yokohama-shi, JP;
Mamoru Sawahashi, Yokohama-shi, JP;
Abstract
It is an object to provide a receiving apparatus which is capable of demodulating signals with a very simple arrangement. Receiving apparatushas N reception antennas---N, and reception antennas---N receive signals. Channel coefficient estimatorestimates and outputs channel coefficients from the signals received by respective reception antennas---N. QR decomposeris supplied with a channel matrix having the channel coefficients as its elements, performs QR decomposition on the channel matrix, and outputs a Q matrix and an R matrix. A Qprocessoris supplied with the Q matrix and the received signals, multiplies the received signals by a complex conjugate transposed matrix of the Q matrix, and outputs converted signal z. A transmitted sequence estimatoris supplied with converted signal z and the R matrix and estimates transmitted sequences.