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:
Feb. 21, 1995
Filed:
May. 21, 1993
Sony Corporation, Tokyo, JP;
Abstract
A level detection circuit includes a multiplier and an adder for computing the sums of square values of a burst signal. A maximum value holding circuit holds a maximum value of the sums of the squared values of the burst signal. A counter counts sampling clocks. A multiplier, an adder and a 1/2 processing circuit compute a half value of the sum of two consecutive count values, and a delay circuit, a latch circuit and a comparator generate a first one of the two consecutive count values as a level of the burst signal when an output of the 1/2 processing circuit becomes larger than the output of the maximum value holding circuit. The invention enables level detection by finding a square value using a small circuit.