ClassID:

223360

H04B1/1661 - CPC Classification

Classification description:

Details of transmission systems, not covered by a single one of groups - ; Details of transmission systems not characterised by the medium used for transmission; Receivers; Circuits adapted for the reception of stereophonic signals Reduction of noise by manipulation of the baseband composite stereophonic signal or the decoded left and right channels

Sub-classes:
Recent Application in this class:
#1
20240356789
2024-10-24

RADIO ACCESS NETWORK SYSTEM WITH ORCHESTRATION ENTITY

#2
20230110986
2023-04-13

Optically-steered RF imaging receiver using photonic spatial beam processing

#3
20220149878
2022-05-12

Communication devices and systems

#4
20200366542
2020-11-19

Remote radio unit using adaptive compression in a distributed radio access network

#5
20190007246
2019-01-03

Baseband unit with adaptive fronthaul link and dynamic ran parameters

#6
20180233161
2018-08-16

Acoustic processing apparatus, acoustic processing method, and computer program product

#7
20180183476
2018-06-28

Radio receiver module

#8
20180091097
2018-03-29

Shift control circuit and wireless device

#9
20180034669
2018-02-01

Baseband unit with adaptive fronthaul link for a distributed radio access network

#10
20180013581
2018-01-11

Baseband unit with adaptive fronthaul link and bypass of MAC function

#11
20170374461
2017-12-28

Device for processing an audio signal

#12
20170373890
2017-12-28

Remote radio unit with adaptive fronthaul link for a distributed radio access network

#13
20140161262
2014-06-12

FM stereo radio receiver by using parametric stereo

#14
20130195164
2013-08-01

Systems and methods for enhancing audio quality of FM receivers

#15
20130195163
2013-08-01

Systems and methods for enhancing audio quality of FM receivers

#16
20130084819
2013-04-04

Gain control circuit, FM receiver and computer program product

#17
20110312294
2011-12-22

Audio hole suppression method and apparatus for a two-way radio

#18
20110206210
2011-08-25

Stereo signal processing circuit

#19
20110194699
2011-08-11

METHOD AND SYSTEM FOR ENHANCED SOUND QUALITY FOR STEREO AUDIO

#20
20090318104
2009-12-24

Analog radio receiver

#21
20090202024
2009-08-13

Reducing Apparatus and Method, and Receiving Apparatus

#22
20090036085
2009-02-05

FM tuner

#23
20080233915
2008-09-25

Signal processing circuit comprising an attenuating unit, a detecting unit, and an attenuation rate setting unit

#24
20070298749
2007-12-27

Multipass noise detecting apparatus and FM receiving apparatus

#25
20070064844
2007-03-22

Method to attenuate specific signal components within a data signal

#26
20070004356
2007-01-04

Noise suppression in an fm receiver

#27
20070003067
2007-01-04

Apparatus for multichannel sound reproduction system

#28
20060215840
2006-09-28

Noise removal device

#29
20060126864
2006-06-15

Circuit and method for eliminating pop noise in digital audio amplifier using dual power supply

#30
20060008090
2006-01-12

Separation adjusting circuit

#31
20050186926
2005-08-25

Method and system for rejecting single-sided leakage into an amplitude modulated (AM) channel

#32
20050180523
2005-08-18

Wireless digital signal transmission method

#33
20050124310
2005-06-09

Receiver

#34
20050085203
2005-04-21

Receiver

#35
20050059374
2005-03-17

AM receiver circuit performing sound quality compensation of AM detection output signal

#36
20050058296
2005-03-17

Radio receiver