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. 20, 1993
Filed:
Jun. 17, 1991
Yuzo Kurokami, Tokyo, JP;
NEC Corporation, Tokyo, JP;
Abstract
In an adaptive equalizer (40) connected to a demodulator (14) to equalize a demodulated signal into an equalized signal in accordance with main and first through N-th controllable tap gains, where N represents a positive integer which is not less than one, the main and the first through the N-th controllable tap gains are produced dependent upon the demodulated and the equalized signals and are controlled by main and first through N-th parameters, respectively. A supplying circuit (42) supplies main and first through N-th values as the main and the first through the N-th parameters to the adaptive equalizer when the demodulator is put in a synchronization state. The supplying circuit supplies main and first through N-th additional values as the main and the first through the N-th parameters to the adaptive equalizer when the demodulator is put out of the synchronization state.