H03D13/007 - CPC Classification Index

ClassID:

219060 ⎘

H03D13/007 - CPC Classification

Classification description:

Circuits for comparing the phase or frequency of two mutually-independent oscillations by analog multiplication of the oscillations or by performing a similar analog operation on the oscillations

Sub-classes:

H03D13/008 » {using transistors} 5
H03D13/009 » {using diodes} 1

Recent Application in this class:

20130038351

2013-02-14

Phase detector

20110122977

2011-05-26

Self-compensating drift-free high-frequency phase detector circuit

20060105733

2006-05-18

System and method for developing ultra-sensitive microwave and millimeter wave phase discriminators

20050215222

2005-09-29

PLL circuit and radio communication terminal apparatus using the same