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:
Nov. 17, 1992
Filed:
Oct. 19, 1990
Perols B Gudmundson, Sollentuna, SE;
Telefonaktiebolaget L M Ericsson, Stockholm, SE;
Abstract
An equalizer having an adaptive viterbi analyzer and channel estimation circuits connected to each a state of the viterbi analyzer. The equalizer receives a filtered and sampled signal which during its transmission has been subjected to time dispersion. For each state, the estimation circuits each estimate a partial impulse response for the communications channel. The iterative estimation process begins by determining transition error signals between a old and a new state with the aid of a preceding partial impulse response. The estimation circuits estimate the current partial impulse responses for the new state using the part partial impulse responses, the transition vectors, and the transition error signals selected by the viterbi analyzer. The partial impulse responses are used to estimate symbols included in the received signal.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile