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:
Jun. 26, 1990
Filed:
Oct. 02, 1987
Philippe Martin, Issy les Moulineaux, FR;
Jean-Pierre Polonovski, Chippewa Falls, WI (US);
Thomson Semiconducteurs, Paris, FR;
Centre National de la Recherche Scientifique, Paris, FR;
Abstract
An ultra-fast sample-and-hold circuit for the processing of analog signals comprises a diodes bridge: an input signal VE is applied to the input point and copied at the output point; the output signal is memorized in a capacitance. At the midpoints of the bridge, two current sources are applied. The voltages at the midpoints are servo-linked, in the hold mode, to the output voltage by means of a voltage follower and diodes mounted diagonally across the bridge, the two switches of the current sources being controlled by a signal clock signal. It is applied to signal processing chains in instrumentation, radar and telecommunications.