ClassID:

225979

H04L27/2276 - CPC Classification

Classification description:

Modulated-carrier systems; Phase-modulated carrier systems, i.e. using phase-shift keying; Demodulator circuits; Receiver circuits using coherent demodulation wherein the carrier recovery circuit uses the received modulated signals using frequency multiplication or harmonic tracking

Recent Application in this class:
#1
20250184194
2025-06-05

MULTI-GIGABIT PER SECOND FREQUENCY-SHIFT KEYING (FSK) TRANSCEIVER

#2
20240214250
2024-06-27

METHOD FOR DEMODULATING A RF SIGNAL IN THE PRESENCE OF INBAND HARMONIC SPURS

#3
20200044900
2020-02-06

Carrier recovery analog system for a receiver of a N-PSK signal

#4
20180254938
2018-09-06

OFDM-based data transmission method and apparatus

#5
20170357220
2017-12-14

Methods and related systems of ultra-short pulse detection

#6
20160218858
2016-07-28

Communication system and phase error estimating method thereof

#7
20150288549
2015-10-08

Systems and methods for narrowband signal quadrature error correction

#8
20150229501
2015-08-13

Phase rotation correcting method and phase rotation correcting apparatus

#9
20140029959
2014-01-30

Digital coherent receiving apparatus

#10
20140003555
2014-01-02

Phase compensation receiver

#11
20100329697
2010-12-30

Digital coherent receiving apparatus

#12
20070211142
2007-09-13

Communications system with baseband pilot injected carrier (BPIC) modulation/demodulation and frame recovery and related methods

#13
20060193401
2006-08-31

System for coherent demodulation of binary phase shift keying signals (BPSK)

#14
20060103561
2006-05-18

Digital signal demodulator and wireless receiver using the same

#15
20050285669
2005-12-29

Demodulation circuit and receiving set

#16
20050253742
2005-11-17

Timing extractor, timing extraction method, and demodulator having the timing extractor

#17
20050164668
2005-07-28

Carrier frequency detection for N-ary phase modulated signal