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. 14, 2004
Filed:
Jun. 20, 2003
Eta Sa Manufacture Horlogere Suisse, Grenchen, CH;
Abstract
There is described a time base comprising a resonator ( ) and an integrated electronic circuit ( ) for driving the resonator into oscillation and for producing, in response to this oscillation, a signal having a determined frequency. The resonator is an integrated micromechanical tuning fork resonator ( ) supported above a substrate ( ) and adapted to oscillate in a plane substantially parallel to the substrate. The tuning fork resonator comprises a base member ( ) extending substantially perpendicularly from the substrate, a free-standing oscillating structure ( ) connected to the base member and including at least a first pair of substantially parallel fork tines ( ) and an electrode structure ( ) disposed adjacent to the fork tines and connected to the integrated electronic circuit.