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Class Information
Number: 375/303
Name: Pulse or digital communications > Transmitters > Angle modulation > Frequency shift keying
Description: Subject matter where the frequency of the carrier wave shifts between predetermined values in accordance with the value of the modulating pulse wave.
Sub-classes under this class:
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7627046 |
Waveform generation for improved peak-to-average amplitude ratio |
Dec. 1, 2009 |
| 7627059 |
Method of robust timing detection and carrier frequency offset estimation for OFDM systems |
Dec. 1, 2009 |
| 7606321 |
System and method for simplifying analog processing in a transmitter incorporating a randomization circuit |
Oct. 20, 2009 |
| 7599418 |
Method and apparatus for a frequency hopper |
Oct. 6, 2009 |
| 7564923 |
Frequency offset and method of offsetting |
Jul. 21, 2009 |
| 7542520 |
Apparatus and method for implementing a low complexity digital modulator |
Jun. 2, 2009 |
| 7495520 |
Modulation device using frequency-shift keying |
Feb. 24, 2009 |
| 7474709 |
Frequency shift keying modulator and applications thereof |
Jan. 6, 2009 |
| 7474608 |
Method for signaling information by modifying modulation constellations |
Jan. 6, 2009 |
| 7463698 |
Transmitter and transmission control method |
Dec. 9, 2008 |
| 7447277 |
Ofdm demodulation device |
Nov. 4, 2008 |
| 7424662 |
Method and system for providing low density parity check (LDPC) encoding |
Sep. 9, 2008 |
| 7394862 |
Multi-mode wireless polar transmitter architecture |
Jul. 1, 2008 |
| 7394869 |
RF transmitter architecture for continuous switching between modulation modes |
Jul. 1, 2008 |
| 7376173 |
Unambiguously encoding and decoding signals for wireless channels |
May. 20, 2008 |
| 7369629 |
FSK signal demodulation circuit |
May. 6, 2008 |
| 7359456 |
Communication system and communication device |
Apr. 15, 2008 |
| 7308043 |
Scrambled chirp frequency jitter for feature suppression |
Dec. 11, 2007 |
| 7292645 |
Binary transmitter and method of transmitting data in binary format |
Nov. 6, 2007 |
| 7269228 |
Non-coherent frequency shift keying transmitter using a digital interpolation synthesizer |
Sep. 11, 2007 |
| 7263137 |
Multivalued FSK modulation system |
Aug. 28, 2007 |
| 7249008 |
Arrangement for runtime compensation of a runtime difference arising through emulation of a high frequency signal |
Jul. 24, 2007 |
| 7239625 |
Low-cost noise-immune wireless methodology for demand control ventilation (DCV) Applications |
Jul. 3, 2007 |
| 7231190 |
Method and apparatus for terminating reception in a wireless communication system |
Jun. 12, 2007 |
| 7200184 |
Data dithering apparatus and method |
Apr. 3, 2007 |
| 7129802 |
Method for estimating a carrier leak, an estimator and modulation system provided with automatic control of a carrier using said system |
Oct. 31, 2006 |
| 7123665 |
Method and apparatus for measuring phase error of a modulated signal |
Oct. 17, 2006 |
| 7123666 |
Gaussian minimum shift key transmitter with feedforward phase compensation |
Oct. 17, 2006 |
| 7103108 |
Digital signal processor transceiver |
Sep. 5, 2006 |
| 7103113 |
Analog FSK modulator for a radio transmitter |
Sep. 5, 2006 |
| 7076217 |
Integrated radio transceiver |
Jul. 11, 2006 |
| 7058114 |
Wireless device and method |
Jun. 6, 2006 |
| 7027524 |
Method of transmitting and receiving QPSK digital signals |
Apr. 11, 2006 |
| 7026864 |
Non-coherent FSK demodulator |
Apr. 11, 2006 |
| 7016429 |
Training sequences for peak to average power constrained modulation formats |
Mar. 21, 2006 |
| 7015749 |
Frequency discriminator using replica compensated delay lines and method of operation |
Mar. 21, 2006 |
| 6862313 |
Direct conversion spread spectrum time division duplex radio |
Mar. 1, 2005 |
| 6785514 |
Method and radio station for transmitting information |
Aug. 31, 2004 |
| 6690741 |
Ultra wideband data transmission system and method |
Feb. 10, 2004 |
| 6600382 |
Microwave phase modulator |
Jul. 29, 2003 |
| 6546060 |
Direct modulating FSK transmitter for MCA |
Apr. 8, 2003 |
| 6480553 |
Gaussian frequency-shift keying transciever for ISM wideband communication |
Nov. 12, 2002 |
| 6452461 |
High-speed power-efficient coded M-ary FSK modulator |
Sep. 17, 2002 |
| 6449317 |
Digital synthesizer |
Sep. 10, 2002 |
| 6438176 |
Digital gaussian frequency shift keying modulator |
Aug. 20, 2002 |
| 6434135 |
Adaptive RF amplifier prelimiter |
Aug. 13, 2002 |
| 6418174 |
Frequency shift key modulator |
Jul. 9, 2002 |
| 6411646 |
Direct conversion time division duplex radio, direct sequence spread spectrum cordless telephone |
Jun. 25, 2002 |
| 6396355 |
Signal generator having fine resolution and low phase noise |
May. 28, 2002 |
| 6392499 |
Frequency shift modulation circuit |
May. 21, 2002 |
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