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:
Aug. 05, 1980
Filed:
Mar. 27, 1979
Lawrence W Fish, Jr, Chenango, NY (US);
McIntosh Laboratory, Inc., Binghamton, NY (US);
Abstract
An integrated circuit stereo decoder includes a blend control input terminal. The DC control voltage on this input terminal determines channel separation. During multiplex FM reception of multi-path signals, the signal strength signal has AM and a DC components. By detecting and amplifying the AC component and adding it to the DC component of the signal strength signal, in phase opposition, the presence of multi-path can be made to reduce the resulting combined signal strength signals which, in turn, is connected to the blend control terminal. Accordingly, the presence of multi-path reduces separation to maintain signal to noise ratio and reduce distortion.