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:
Apr. 29, 1986
Filed:
Dec. 16, 1981
Tomomitsu Kuroyanagi, Yokohama, JP;
Hitachi, Ltd., Tokyo, JP;
Abstract
The output signals from the first set of delay elements of m each with a first delay time are selectively applied to a second set of delay elements of n each with a second delay time by means of a switch. The output signals from the said first and said second of delay elements are processed by the individual gain controllable circuits and are composed by an adder. The gains of the gain controllable circuits are respectively controlled by output signals from the control voltage generating circuits which are set by the output signals from comparators for comparing the television signal supplied to the input terminal with a reference signal from the reference signal generating circuit, so that the ghost interference in the television receiver can be reduced by a lesser number of delay elements by subtracting the output signals of the adder circuits from the television input signal in subtractor circuits.