H03G1/0058 - CPC Classification Index

ClassID:

220213 ⎘

H03G1/0058 - CPC Classification

Classification description:

Details of arrangements for controlling amplification; Circuits characterised by the type of controlling devices operated by a controlling current or voltage signal using continuously variable impedance elements using diodes PIN-diodes

Recent Application in this class:

20140077844

2014-03-20

Signal level adjusting device and high-frequency apparatus

20120161843

2012-06-28

ATTENUATION CONTROL DEVICE, SIGNAL ATTENUATION DEVICE, AUTOMATIC GAIN CONTROL DEVICE, ATTENUATION CONTROL METHOD, AND AUTOMATIC GAIN CONTROL METHOD

20120105110

2012-05-03

Signal level adjusting device and high-frequency apparatus

20090174483

2009-07-09

GAIN-CONTROLLED LOW NOISE AMPLIFIER MEANS

20090009266

2009-01-08

Antenna damping circuit and high frequency receiver employing same

20070285174

2007-12-13

High-frequency circuit of reduced circuit scale

20070001738

2007-01-04

Variable resistance circuit

20060146691

2006-07-06

Amplitude controller

16540537

2021-06-22

System and method employing low distortion and low loss switch with anti-series diodes