Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
Home › Phase-locked loop frequency tracking device including a direct digital synthesizer

Phase-locked loop frequency tracking device including a direct digital synthesizer

US Patent 5130671 · Granted Jul 14, 1992

Assignee

Inventors

View full patent text on Google Patents →

More Patents by These Inventors

Electronic structure having an embedded pyrolytic graphite heat sink material2000
Phase-locked loop frequency tracking device including a direct digital synthesiz1993
Phase-locked loop frequency tracking device including a direct digital synthesiz1993
Digitally implemented variable phase shifter and amplitude weighting device1991
Randomized digital/analog converter direct digital synthesizer1991
Apparatus and method for phase noise and post tuning drift cancellation1990
Apparatus and method for phase noise and post tuning drift cancellation1990
High speed adder1990
Spurless fractional divider direct digital frequency synthesizer and method1989
Digital phase-frequency discriminator comprising simplified reset means and asso1988
Apparatus for on-wafer testing of electrical circuits1988
Process for fabrication of ohmic contacts in compound semiconductor devices1984