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:
Jul. 09, 1996
Filed:
Oct. 24, 1994
Applicant:
Inventor:
Shawn M Logan, Andover, MA (US);
Assignee:
AT&T Corp., Murray Hill, NJ (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03B / ; H03B / ; H03K / ;
U.S. Cl.
CPC ...
331158 ; 331 / ; 3311 / ; 331173 ; 3311 / ;
Abstract
Oscillation is easily and reliably initiated in an oscillator by increasing the gain of the circuit at startup time. For example, the gain of an oscillator circuit may be increased at startup by reducing the value of a user controlled impedance until oscillation commences. Alternatively, or in combination, the input impedance of an amplifier used in the oscillator may be reduced at startup to facilitate the initiation of oscillation.