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:
Aug. 15, 1989
Filed:
Jun. 16, 1988
Hartmut Harlos, Hamburg, DE;
Peter Kelting, Elmshorn, DE;
U.S. Philips Corporation, New York, NY (US);
Abstract
A circuit arrangement for reducing noise when peaking the edges of a useful signal (S1) by combination with a peaking signal (S3) derived therefrom, which signal only influences the useful signal (S1) when a predetermined amplitude threshold is exceeded, which arrangement has a peaking signal stage (20) for supplying the peaking signal (S3) and a noise suppression stage (7) in which a noise suppression signal is generated and is superimposed on the peaking signal (S3), while the peaking signal stage (20) applies the peaking signal (S3) to two push-pull current outputs (21, 22) provides the possibility of a very simple circuit structure, particularly with a view to a space-saving integration on a semiconductor crystal in that each of the push-pull current outputs (21, 22) in the noise suppression stage (7) is connected to a series resistor (23, 24) and to the control terminal of one of two transistors (25, 26) whose main current paths at one end are connected together and to a supply current source (27) and at their other end are connected to the terminal of the associated series resistor (23, 24) remote from the push-pull current output (21, 22, respectively).