ClassID:

225947

H04L27/18 - page 3 - CPC Classification

Classification description:

Modulated-carrier systems Phase-modulated carrier systems, i.e. using phase-shift keying

Recent Application in this class:
#601
20060146913
2006-07-06

TDMA, spread spectrum RF agile filtered signal transmission

#602
20060140307
2006-06-29

Multi-symbol noncoherent CPM detector

#603
20060098753
2006-05-11

Continuous phase modulation system and method with added phase pulse

#604
20060093071
2006-05-04

Blind detection of BPSK signals in a multi-user environment

#605
20060088127
2006-04-27

Modulation and demodulation system, modulator, demodulator and phase modulation method and phase demodulation method used therefor

#606
20060088121
2006-04-27

Clock modulation systems

#607
20060084406
2006-04-20

Systems and methods for increasing bandwidth of wireless communications

#608
20060083333
2006-04-20

Modulating signals for coherent and differentially coherent receivers

#609
20060083320
2006-04-20

Demodulation of multiple signals

#610
20060083294
2006-04-20

Modulating signals for coherent and differentially coherent receivers

#611
20060078062
2006-04-13

Method and system for a turbo trellis coded modulation scheme for communication systems

#612
20060067703
2006-03-30

Control of delay line interferometer

#613
20060056535
2006-03-16

Method for dividing the bit rate of QPSK signals into two or several subchannels

#614
20060050806
2006-03-09

Digital baseband transmitter with digital RF/IF support in GSM/GPRS/EDGE compliant handsets

#615
20060049693
2006-03-09

Apparatus and method for transmitting digital data over various communication media

#616
20060039501
2006-02-23

Method and system for utilizing space-time codes for block fading channels

#617
20060034216
2006-02-16

Packet transmission acknowledgement in wireless communication system

#618
20060029171
2006-02-09

Radio receiver and/or transmitter including a programmable equalizer

#619
20060029161
2006-02-09

Technique to simultaneously distribute clock signals and data on integrated circuits, interposers, and circuit boards

#620
20060002286
2006-01-05

Modulator

#621
20050272383
2005-12-08

Transmitter and a method for transmitting data

#622
20050268206
2005-12-01

Common circuitry supporting both bit node and check node processing in LDPC (Low Density Parity Check) decoder

#623
20050260089
2005-11-24

Reciprocating pulser for mud pulse telemetry

#624
20050249308
2005-11-10

T1 radio having coding gain adjustable for number of channels

#625
20050226348
2005-10-13

Frequency staggered frequency shift keying modulation

#626
20050220173
2005-10-06

Methods and systems for frequency shift keyed modulation for broadband ultra wideband communication

#627
20050207510
2005-09-22

Frequency diverse single carrier modulation for robust communication over in-premises wiring

#628
20050185699
2005-08-25

Spread spectrum, cross-correlated and filtered modulated systems

#629
20050175116
2005-08-11

OFDM, CDMA, spread spectrum, TDMA, cross-correlated and filtered modulation

#630
20050166132
2005-07-28

IPHD (iterative parallel hybrid decoding) of various MLC (multi-level code) signals

#631
20050153735
2005-07-14

Wireless communication system, wireless communication apparatus, wireless communication method, and computer program

#632
20050149843
2005-07-07

Bandwidth efficient coded modulation scheme based on MLC (multi-level code) signals having multiple maps

#633
20050114748
2005-05-26

Variable modulation with LDPC (low density parity check) coding

#634
20050111582
2005-05-26

Digital modulation circuit and method as well as digital demodulation circuit and method

#635
20050084043
2005-04-21

Adaptive multi-step combined DC offset compensation for EDGE 8-PSK

#636
20050078767
2005-04-14

Distortion tolerant linear phase modulations

#637
20050047522
2005-03-03

Method and apparatus for rearranging codeword sequence in a communication system

#638
20050025256
2005-02-03

Method of implementing modulation and modulator

#639
17107333
2022-12-06

Asset location using backscatter communication with low probability of intercept and detection

#640
16940718
2022-05-31

Systems and methods to reduce peak to average power ratio for dual sub-carrier modulated transmissions in a wireless network

#641
16571406
2020-08-04

Systems and methods to reduce peak to average power ratio for dual sub-carrier modulated transmissions in a wireless network

#642
16234484
2019-11-12

Digital-controlled vector signal modulator

#643
16151870
2019-10-08

Systems and methods to reduce peak to average power ratio for dual sub-carrier modulated transmissions in a wireless network

#644
15479898
2019-11-26

Multi carrier frequency modulation spread spectrum communication system

#645
15284386
2018-02-20

BPSK demodulation

#646
15236224
2017-10-31

High rate VHF datalink

#647
15165713
2018-10-09

Systems and methods to reduce peak to average power ratio for dual sub-carrier modulated transmissions in a wireless network

#648
15077227
2016-08-23

Separating and extracting modulated signals

#649
15077195
2016-09-27

Separating and extracting modulated signals

#650
14848354
2016-11-08

Circuit and method for improving phase detection

#651
14092960
2015-02-03

Multi-rate coexistence scheme in DSSS O-QPSK network

#652
14013938
2015-02-03

Apparatus for high rotation rate low I/O count phase interpolator