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.

Date of Patent:
May. 06, 1986

Filed:

Dec. 08, 1983
Applicant:
Inventors:

Masutomi Ohta, Yokohama, JP;

Fumihiro Kawana, Yokohama, JP;

Assignee:

Hitachi, Ltd., Tokyo, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04Q / ; H03K / ; H04N / ; G06F / ;
U.S. Cl.
CPC ...
3408253 ; 371-2 ; 371 47 ; 307445 ; 34082557 ; 358142 ;
Abstract

A code signal detector for detecting a code signal included in signals of a broadcast with characters superimposed in which character signals are superimposed during the vertical blanking line period, said code signal detector comprising one or more shift registers for converting serial data into parallel data, priority encoder elements for detecting the most significant or the least significant bit represented by positive or negative logic level out of parallel data supplied from said shift register, and exclusive-OR gates.


Find Patent Forward Citations

Ohta, Masutomi. (1986). Code signal generator or detector for video frame code (U.S. Patent No. 4587521). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4587521

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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