Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
Home › Digital motor speed controller

Digital motor speed controller

US Patent 4415844 · Granted Nov 15, 1983

Estimated economic value: $2,799,000 ⓘ

Assignee

Inventors

View full patent text on Google Patents →

More Patents by These Inventors

Autonomous fault diagnosis for disk drive using an internal microprocessor1981
Drive power sequencing1980
Phase comparator with dual phase detectors1980
Adaptive circuit for extracting timing information from a repetitive series of t1980