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:
Jun. 30, 1998
Filed:
Nov. 30, 1993
Lloyd W Priddy, Mohtomedi, MN (US);
Wesley C Sewell, Dunedin, FL (US);
Honeywell, Inc., Minneapolis, MN (US);
Abstract
To reduce the accumulative lock-in effects of the ring laser gyroscope, the dither circuitry is provided with low frequency dither amplitude modulation. Such modulation is achieved by first developing a pair of complementary low frequency dither noise signals. These low frequency dither noise signals are then utilized by a modulator to modulate the dither drive signal in conjunction with the low frequency dither noise signals. This results in a system which allows much more dither amplitude modulation with much less output from the drive amplifiers. Because of the ability to increase amplitude modulation, gyro performance is greatly improved.