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:
Nov. 01, 1988
Filed:
Sep. 08, 1986
Guido Torelli, S. Alessio, IT;
Alejandro De La Plaza, Bergamo, IT;
SGS Microelettronica SpA, Catania, IT;
Abstract
A first and a second input signals, composing a stereophonic pair, are amplified in respective channels, added by adder means in a desired phase relationship, chosen between completely in phase and 180.degree. out of phase, and the sum signal thus produced is processed by a transfer bloc having a desired transfer function, and is superimposed on the signal in the first channel with opposite phase, and is then superimposed on the signal in the second channel with a 180.degree. out of phase or in phase relationship, according to whether the input signals are added respectively in phase or with opposite phase.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile