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:
Dec. 29, 1992
Filed:
Sep. 20, 1990
Applicant:
Inventors:
Takashi Kaku, Tama, JP;
Hiroki Kishimoto, Kawasaki, JP;
Assignee:
Fujitsu Limited, , JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03H / ;
U.S. Cl.
CPC ...
375 12 ; 333 18 ; 36472419 ;
Abstract
A system of the transversal type automatic equalizer with a tap coefficient protection in which an inter-symbol interference is prevented. The system includes a summing unit for summing all of the tap powers detected by tap power detecting unit, and a determination unit for comparing the sum produced by the summing unit with a predetermined threshold value, and for producing the output determination of normal when the sum is not more than the threshold value and producing the output determination of abnormal tap coefficient growth when the sum is more than the threshold value.