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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
7940130 Frequency generator and method of frequency generation with multiple sampling phase detectors May. 10, 2011
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











 
 
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