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:
Dec. 24, 1985
Filed:
Jul. 27, 1984
Applicant:
Inventor:
Wolfgang Sauer, Freiburg, DE;
Assignee:
ITT Industries, Inc., New York, NY (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03B / ;
U.S. Cl.
CPC ...
3311 / ; 330252 ; 331159 ;
Abstract
To increase the gain and, consequently, to increase the voltage amplitude appearing at the crystal of a crystal oscillator a conventional circuit including a first differential amplifier in the amplifier section and two further differential amplifiers in the phase shifting section is modified to include a fourth differential amplifier in the amplifier section. The fourth amplifier carries an additional current to flow in the two differential amplifiers causing an additional current to flow and across the operating resistance of the two differential amplifiers an additional voltage drop being fed to the crystal via an emitter follower.