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:
Jul. 25, 1995
Filed:
Apr. 03, 1992
Kazuhiko Fukuawa, Yokosuka, JP;
Hiroshi Suzuki, Yokosuka, JP;
Nippon Telegraph and Telephone Corporation, Tokyo, JP;
Abstract
In an apparatus for equalization in an impulse response of mobile transmission which varies fast in mobile radio communication, a signal generating circuit outputs a signal sequence undergoing transition at a predetermined period and corresponding to each state transition and a signal sequence corresponding to the path of each state transition. An adaptive filter receives the signal sequence corresponding to each state transition and outputs an estimated signal for each state transition. The apparatus also includes state estimating circuits for performing state estimation by using the square of an estimation error obtained by subtracting each estimated signal from a sampled signal, and a control circuit for controlling the tap coefficient of the adaptive filter by using the RLS algorithm in order to minimize the square of the estimation error.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile