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:
Mar. 30, 1982
Filed:
Sep. 08, 1980
Stan Bart, Hoffman Estates, IL (US);
George J Tzakis, Glenview, IL (US);
Zenith Radio Corporation, Glenview, IL (US);
Abstract
A ramp generator is described for developing a ramp voltage for use in vertically deflecting the electron beam or beams of a television receiver. The ramp generator receives a vertical rate pulse developed by the receiver for developing a charging current during the occurrence of the vertical rate pulse. A discharging current is also generated, and both currents are applied to a capacitor for developing a ramp voltage which increases and then decreases in amplitude. A clamp circuit in the generator is enabled when the vertical pulse is received for clamping the ramp voltage on the capacitor to a predetermined peak voltage via low impedance path such that unwanted voltage components are substantially eliminated from the ramp voltage during the clamping action.