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:
May. 19, 1987
Filed:
Jul. 05, 1983
Applicant:
Inventors:
Toshiro Nozoe, Yamatokouriyama, JP;
Akira Yamashita, Takatsuki, JP;
Masayoshi Hirashima, Ibaraki, JP;
Shin Fukuda, Hirakata, JP;
Assignee:
Matsushita Electric Industrial Co., Ltd., Kadoma, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04N / ;
U.S. Cl.
CPC ...
358147 ; 358146 ;
Abstract
A teletext decoder having a character pickup circuit superior in the antinoise property and response characteristic by allowing signals only in the vicinity of clock run-in signals to pass, simultaneously detecting the amplitude of clock run-in signals through a band-pass filter circuit, gating framing code signals and reproduced clock and slice data, and integrating and holding the clock run-in signals.