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:
Sep. 15, 1987
Filed:
Feb. 04, 1986
Mitsuo Soneda, Kanagawa, JP;
Yoshikazu Hazama, Kanagawa, JP;
Sony Corporation, Tokyo, JP;
Abstract
A sample-and-hold circuit is provided wherein an input signal is fed via a first gate element to one end of a first capacitor whose other end is alternately grounded, the one end of the first capacitor being connected via a second capacitor to a gate (or base) of a source (or emitter) follower transistor to obtain an output from the source (or emitter) of the transistor which is connected via a second gate element to one end of the first capacitor, while the gate (or base) of the transistor is connected via a third gate element to a DC voltage supply having a predetermined voltage value, and the second and third gate elements are turned on during a first period of the input signal so that a voltage corresponding to the gate-source (or base-emitter) offset voltage of the transistor is stored in the second capacitor, while the first gate element is turned on during a second period of the input signal to produce an output signal equivalent in level to the input signal.