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:
Dec. 24, 1985
Filed:
Aug. 13, 1984
Motoaki Asao, Daito, JP;
Hideaki Nanko, Nishinomiya, JP;
Sanyo Electric Co., Ltd., Osaka, JP;
Abstract
A digital signal receiver is structured to receive and demodulate a digital signal. Such digital signal may comprise, for example, a television signal of character multiplex transmission having a digital signal included in the vertical blanking period of the television signal and a digital signal receiver may be structured to reproduce the digital signal from the television signal. The digital signal includes a clock run-in signal (CRI), a framing code signal (FRC) and a bit serial data signal (DA) disposed in succession. An error of the framing code or the data signal caused by a low frequency region group delay characteristic of a transmission path between the transmission and the demodulation is detected based on the digital signal. Upon detection of an error, a waveform distortion of the framing code signal and the data signal is corrected by means of a correcting circuit (15) such as an LC circuit, whereby an error of the data signal to be demodulated thereafter is prevented.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile