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:
Mar. 28, 1995
Filed:
Aug. 05, 1993
Hideki Matsuura, Tokyo, JP;
NEC Corporation, Tokyo, JP;
Abstract
A decision feedback equalizer capable of coping with a high transmission rate and operable at a rate which is not effected by the number of taps. A first and a second shift register are respectively connected between a first and a second adder and between the second and a third adder. The output of a decision unit associated with the last tap is delayed one bit by a third shift register and then applied to multipliers at the same time. The multipliers, each being associated with respective tap, multiply their inputs by a first to a third tap coefficient, respectively. The resulting outputs of the multipliers are applied to the associated adders. The adders each has only to perform a single addition within a period of time corresponding to one bit.