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:
Apr. 30, 1991
Filed:
Oct. 04, 1989
Arnoldus J Boudewijns, Eindhoven, NL;
U.S. Philips Corp., New York, NY (US);
Abstract
A delay line, especially for delaying t.v. signals, includes a series of signal storage capacitances, an input line, an output line, selection transistors between the storage capacitances and the input and output lines and a digital shift register for activating the selection transistors. According to the invention, the output line comprises a central part, on either side of which signal storage capacitances with associated selection transistors are located, which in turn are located between the central part of the output line and the associated parts of the shift register. The design according to the invention results in a compact configuration, which has the advantage that the parasitic capacitance of the output line is comparatively low. The configuration can be readily extended to two interlaced delay lines having a single common shift register.