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. 20, 1977
Filed:
Apr. 13, 1976
Michael Koubek, Munich, DT;
Siemens Aktiengesellschaft, Berlin & Munich, DT;
Abstract
A circuit and process for decoding the output signal of a single-tube color television camera which is characterized in that the output signal of the camera tube is connected to a high-pass filter and a low-pass filter each of which are followed by two series-connected delay lines exhibiting a delay in each case of one line length, that the series connection of the delay lines are each connected to two summing elements each with three inputs for the undelayed signal, the singly delayed signal and the doubly delayed signal, where a further summing element for the undelayed and the doubly delayed high frequency signal is connected to the high-pass filter and the following delay lines, that the outputs of the first two summing elements which are connected to the high-pass filter each lead through a band-pass filter and a demodulator to an input of a matrix. A third and fourth summing element are connected to the doubly delayed, the singly delayed and the undelayed lines from the low-pass filter. A fifth summing element is connected to the doubly delayed line and to the undelayed line from the high-pass filter, a transit time element connected to the fifth summing element which serves to match the transit time of the low-pass filter and the outputs of the two summing elements connected to the low-pass filter, to the inputs of an adder element, where the output of the adder element carries the clearly defined luminance signal and two outputs from the matrix which carry two color difference signals.