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:
Jan. 19, 1982
Filed:
Apr. 09, 1979
Applicant:
Inventor:
Birney D Dayton, Nevada City, CA (US);
Assignee:
The Grass Valley Group, Inc., Grass Valley, CA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H03K / ; H03K / ; H03K / ;
U.S. Cl.
CPC ...
307261 ; 307494 ; 3072 / ; 328 36 ;
Abstract
An electronic circuit which produces controlled rise and fall times with a sine-squared step pulse shape from rectangular input pulses is disclosed. The circuit uses the inherent nonlinear behavior of a bipolar transistor differential pair to shape the pulses and requires very little passive filtering. The output wave-shaped current may be developed across a resistor or fed to the input mode of a feedback amplifier.