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. 05, 1987
Filed:
Feb. 18, 1986
Applicant:
Inventors:
Soenke Mehrgardt, March, DE;
Bernhard Ehret, Freiburg, DE;
Assignee:
Deutsche ITT Industries GmbH, Freiburg, DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H03D / ;
U.S. Cl.
CPC ...
329 50 ; 329110 ; 329122 ; 375 82 ; 358 23 ;
Abstract
A subcircuit for the demodulation of SECAM color-television signals has two signal paths each including a low-pass filter (tp1, tp2) which has the transfer function H(z)=(1+ z.sup.-1).sup.5. The amount of area required by the subcircuit on an integrated-circuit chip is thus kept small.