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Class Information
Number: 375/353
Name: Pulse or digital communications > Pulse amplitude modulation
Description: Subject matter in which the amplitude of the transmitted pulses represents the transmitted information.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7609109 |
Contactless IC card system |
Oct. 27, 2009 |
| 7596106 |
System and method for generating flexible time slot in internal voice mail system |
Sep. 29, 2009 |
| 7596175 |
Methods and circuits for performing margining tests in the presence of a decision feedback equalizer |
Sep. 29, 2009 |
| 7589586 |
High frequency signal detection circuit |
Sep. 15, 2009 |
| 7590175 |
DFE margin test methods and circuits that decouple sample and feedback timing |
Sep. 15, 2009 |
| 7586978 |
GMSK spread modulation |
Sep. 8, 2009 |
| 7587002 |
Wireless transmitting and receiving device and method |
Sep. 8, 2009 |
| 7570684 |
Method for joint time synchronization and frequency offset estimation in OFDM system and apparatus of the same |
Aug. 4, 2009 |
| 7570713 |
System and method for anticipatory receiver switching based on signal quality estimation |
Aug. 4, 2009 |
| 7567639 |
Method and apparatus for generating preamble sequence for adaptive antenna system in orthogonal frequency division multiple access communication system |
Jul. 28, 2009 |
| 7525398 |
Acoustically communicating data signals across an electrical isolation barrier |
Apr. 28, 2009 |
| 7505536 |
Energy dispersal circuit and receiver |
Mar. 17, 2009 |
| 7480589 |
Method and system for displaying signal envelope information for an RF signal |
Jan. 20, 2009 |
| 7460832 |
Methods and apparatuses for minimizing co-channel interference |
Dec. 2, 2008 |
| 7450530 |
Cross link multiplexer bus configured to reduce cross-talk |
Nov. 11, 2008 |
| 7450529 |
Cross link multiplexer bus |
Nov. 11, 2008 |
| 7436881 |
Per-bin DFE for advanced OQAM-based multi-carrier wireless data transmission systems |
Oct. 14, 2008 |
| 7436916 |
Pulse modulator and PPM demodulation determining circuit employed in ultra wideband wireless communications |
Oct. 14, 2008 |
| 7428282 |
Timing recovery of PAM signals using baud rate interpolation |
Sep. 23, 2008 |
| 7412209 |
Shifted channel characteristics for mitigating co-channel interference |
Aug. 12, 2008 |
| 7394875 |
Beaulieu series approach to optimal UMTS RACH preamble detection estimation |
Jul. 1, 2008 |
| 7391831 |
Apparatus and method for mode transition of a transmit diversity scheme in a mobile communication system for using transmit diversity scheme in a mobile communication system for using transmit |
Jun. 24, 2008 |
| 7391834 |
Pulse amplitude modulated system with reduced intersymbol interference |
Jun. 24, 2008 |
| 7376357 |
System and method of using variable pulses for symbology |
May. 20, 2008 |
| 7355532 |
voltage level coding system and method |
Apr. 8, 2008 |
| 7356019 |
Method and apparatus for converting optical signals to radio channels |
Apr. 8, 2008 |
| 7346119 |
System and method for high speed digital signaling |
Mar. 18, 2008 |
| 7336736 |
Method of detecting and processing pulsed signals in a radio signal |
Feb. 26, 2008 |
| 7327813 |
Digital receiving device and radio communication system |
Feb. 5, 2008 |
| 7308058 |
Transparent multi-mode PAM interface |
Dec. 11, 2007 |
| 7307472 |
Digital demodulator with a low sampling frequency |
Dec. 11, 2007 |
| 7308044 |
Technique for receiving differential multi-PAM signals |
Dec. 11, 2007 |
| 7301473 |
Receiver for an acoustic telemetry system |
Nov. 27, 2007 |
| 7295638 |
Communication device |
Nov. 13, 2007 |
| 7283595 |
Ultra wide band pulse train generator |
Oct. 16, 2007 |
| 7280522 |
Method for preparing a profile in W-CDMA communication |
Oct. 9, 2007 |
| 7277480 |
System and method of equalization of high speed signals |
Oct. 2, 2007 |
| 7274266 |
Radio frequency excitation arrangement |
Sep. 25, 2007 |
| 7260155 |
Method and apparatus for encoding and decoding digital communications data |
Aug. 21, 2007 |
| 7233617 |
System and method of equalization of high speed signals |
Jun. 19, 2007 |
| H2190 |
Sampled analog transmission |
Jun. 5, 2007 |
| 7184480 |
Digital PWM generator |
Feb. 27, 2007 |
| 7170930 |
Receiver |
Jan. 30, 2007 |
| 7167514 |
Processing of quinary data |
Jan. 23, 2007 |
| 7164722 |
Radio communications system, transmitter, receiver, radio transmission method, radio reception method and computer program therefor |
Jan. 16, 2007 |
| 7145937 |
GMSK spread modulation |
Dec. 5, 2006 |
| 7124221 |
Low latency multi-level communication interface |
Oct. 17, 2006 |
| 7123843 |
System and method of using variable pulses for symbology |
Oct. 17, 2006 |
| 7113550 |
Technique for improving the quality of digital signals in a multi-level signaling system |
Sep. 26, 2006 |
| 7072415 |
Method and apparatus for generating multi-level reference voltage in systems using equalization or crosstalk cancellation |
Jul. 4, 2006 |
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