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. 04, 1977
Filed:
Jun. 25, 1975
Anthony F Keller, Chicago, IL (US);
Motorola, Inc., Schaumburg, IL (US);
Abstract
A Colpitts type oscillator having a tank circuit including a crystal, a voltage variable capacitor and split capacitors with a first inductance including a coil connected in series with the crystal and a second inductance including a coil connected in parallel with the series connected coil and crystal and a second coil connected in series with one of the capacitors and the series combination connected in parallel with the first coil of the second inductance, said first and second inductances operating to neutralize the C.sub.o of the crystal, providing an impedance transformation between the crystal and the tank circuit, and improving the stability of the oscillator over a substantially increased warp range.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile