Patents-Review.com
ClassID:

223983 ⎘

H04B14/04 - CPC Classification

Classification description:

Transmission systems not characterised by the medium used for transmission characterised by the use of pulse modulation using pulse code modulation

Sub-classes:
Recent Application in this class:
#1
20240372632
2024-11-07

Method And Apparatus For Wireless Communications

 #2
20230079791
2023-03-16

Clock sending apparatus and method, and clock receiving apparatus and method

 #3
20220303024
2022-09-22

Method and apparatus for wireless communications

 #4
20200396010
2020-12-17

Method and apparatus for wireless communications

 #5
20200319664
2020-10-08

Audio data transmission method and apparatus

 #6
20200052938
2020-02-13

Acoustic secure transmission (AST)

 #7
20180048744
2018-02-15

Packetizing encoded audio frames into compressed-over-pulse code modulation (PCM) (COP) packets for transmission over PCM interfaces

 #8
20160294503
2016-10-06

Electromagnetic spectrum management system

 #9
20150372715
2015-12-24

Robust time shift tracking UWB receiver

 #10
20120300858
2012-11-29

Method and apparatus of switched amplification having improved efficiency

 #11
20120163618
2012-06-28

AUDIO TRANSMISSION SYSTEM

 #12
20100277182
2010-11-04

Implementing a coded time domain transmission distance meter

 #13
20100145712
2010-06-10

Methods and apparatus for coding digital audio signals using a filtered quantizing noise

 #14
20100135317
2010-06-03

PCM type interface

 #15
20100042740
2010-02-18

METHOD AND DEVICE FOR DATA PACKING

 #16
20090254353
2009-10-08

Method and system for an efficient implementation of the Bluetooth® subband codec (SBC)

 #17
20090245328
2009-10-01

Integer cycle frequency hopping modulation for the radio frequency transmission of high speed data

 #18
20090201982
2009-08-13

Precision timing pulse width communications transforming reshaped pulse stream

 #19
20090162077
2009-06-25

Precision timing pulse width communications systems and methods

 #20
20090094037
2009-04-09

Adaptive approach to improve G.711 perceptual quality

 #21
20090052558
2009-02-26

NICAM system and symbol rate conversion method thereof

 #22
20080291070
2008-11-27

DIGITAL/ANALOG CONVERTER AND TRANSMITTER

 #23
20080267333
2008-10-30

Method and apparatus for controlling buffer overflow in a communication system

 #24
20080205489
2008-08-28

Inductive communication system with increased noise immunity using low-complexity transmitter

 #25
20080170631
2008-07-17

System and method for notched spectrum modulation of radio frequency carrier waves

 #26
20080119137
2008-05-22

Multi-band multi-mode terminal having short-range wireless communication module

 #27
20070279269
2007-12-06

Digital/analog converter and transmitter for complex signals

 #28
20070153919
2007-07-05

ROM addressing method for an ADPCM decoder implementation

 #29
20070093206
2007-04-26

Method and system for an efficient implementation of the Bluetooth® subband codec (SBC)

 #30
20070047473
2007-03-01

PCM type interface

 #31
20070025437
2007-02-01

Precision timing pulse width communications

 #32
20060039484
2006-02-23

Miniaturized pulse code modulation encoder

 #33
20050286642
2005-12-29

voltage level coding system and method

 #34
20050169320
2005-08-04

PCM-based data transmission system and method

 #35
20050114427
2005-05-26

Transmission apparatus with variable impedance matching

 #36
20050078597
2005-04-14

Methods and systems for digital data transmission

 #37
20050013281
2005-01-20

Method and apparatus for controlling distributed transcoders

 #38
16379768
2020-03-24

System and method for communicating digital data using ambient acoustic waves

 #39
15236065
2017-07-18

Digitally-controlled impedance control for dynamically generating drive strength for a transmitter