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:
Jul. 25, 1989
Filed:
Sep. 14, 1987
Hisaharu Takeuchi, Fukaya, JP;
Teruo Itami, Tokyo, JP;
Kabushiki Kaisha Toshiba, Kawasaki, JP;
Abstract
An analog signal synthesizing processing circuit with a periodic noise compensation generates analog signal of a plurality of audio signals and so forth containing noise generated almost periodically, for example by head switching of VTR, and plurality of analog signals containing the noise are phase-synchronized with given sampling clock signal and phase synchronizing circuit by timing oscillating circuit, the phase-synchronized signal is output from reproductive audio signal processing circuit, converted into digital signal by analog-digital converter and the noise contained in this converted signal is approximated from its preceding and following signal by compensation processing circuit and this approximated signal is converted into analog signal by digital-analog converter.