Automatic frequency stabilization using a phase or frequency sensing means > With reference oscillator or source > Signal or phase comparator > Plural diode type > Patents

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Class Information
Number: 331/26
Name: Oscillators > Automatic frequency stabilization using a phase or frequency sensing means > With reference oscillator or source > Signal or phase comparator > Plural diode type
Description: Subject matter wherein the signal or phase comparator includes two or more unilaterally conducting devices (e.g., diodes) as elements thereof.

Patents under this class:

Patent Number	Title Of Patent	Date Issued
6390639	Spread illuminating apparatus	May. 21, 2002
5294895	Microwave oscillators and transmitters with frequency stabilization	Mar. 15, 1994
4940952	Phase and frequency comparator circuit for phase locked loop	Jul. 10, 1990
4841257	High-speed sampling phase detector for clock and data recovery system	Jun. 20, 1989
4500853	Oscillator phase lock system	Feb. 19, 1985
4426627	Phase-locked loop oscillator circuit utilizing a sub-loop with a second phase comparator	Jan. 17, 1984
4355288	Frequency-stabilizing system for generator of microwave oscillations	Oct. 19, 1982
4039967	Phase-locked loop having a slight phase offset error	Aug. 2, 1977