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Class Information
Number: 329/313
Name: Demodulators > Pulse or interrupted continuous wave demodulator > Pulse position, frequency, phase or spacing demodulator
Description: Subject matter where the modulated signal input to the demodulator has undergone pulse position, frequency, phase or spacing modulation.

Sub-classes under this class:

Class Number Class Name Patents
329/314 Including discrete semiconductor device 11

Patents under this class:
1 2

Patent Number Title Of Patent Date Issued
8625661 Pulse edge modulation Jan. 7, 2014
8525585 Demodulation circuit and RFID tag including the demodulation circuit Sep. 3, 2013
8258862 Demodulation circuit and RFID tag including the demodulation circuit Sep. 4, 2012
8254437 Transmitting apparatus, receiving apparatus and communication system Aug. 28, 2012
8054915 Method and device for adjusting a pulse detection threshold, and pulse detection and corresponding receiver Nov. 8, 2011
8044744 Time modulation with cosine function Oct. 25, 2011
8014483 Method of acquiring initial synchronization in impulse wireless communication and receiver Sep. 6, 2011
7881397 Wireless communication system Feb. 1, 2011
7868689 Low power slicer-based demodulator for PPM Jan. 11, 2011
7620095 RF modem utilizing saw device with pulse shaping and programmable frequency synthesizer Nov. 17, 2009
7449945 Phase demodulator and portable telephone apparatus Nov. 11, 2008
7414463 Demodulator for demodulating pulse position modulated signal Aug. 19, 2008
7388911 In-band-on-channel broadcast system for digital data Jun. 17, 2008
7336736 Method of detecting and processing pulsed signals in a radio signal Feb. 26, 2008
7221215 Demodulator for demodulating pulse position modulated signal May. 22, 2007
6970496 RF modem and communications transceiver utilizing saw device and pulse shaping Nov. 29, 2005
6940892 Spread spectrum transmission apparatus, spread spectrum reception apparatus, and spread spectrum communication system Sep. 6, 2005
6903603 Phase detection circuit and receiver Jun. 7, 2005
6788219 Structure and method for pulse telemetry Sep. 7, 2004
6700931 Method, system and apparatus for initiating and maintaining synchronization of a pulse position modulation (PPM) decoder with a received PPM signal Mar. 2, 2004
6566941 Method and device of phase detection in phase modulation systems May. 20, 2003
6442200 Modulating circuit, demodulating circuit and modulating and demodulating circuit system, using PPM method Aug. 27, 2002
6426716 Modulated pulse doppler sensor Jul. 30, 2002
6359525 Modulation technique for transmitting multiple high data rate signals through a band limited channel Mar. 19, 2002
6310906 Chaotic carrier pulse position modulation communication system and method Oct. 30, 2001
6295318 Method and system for increasing the data rate over twisted copper pairs and other bandwidth-limited dedicated communications facilities Sep. 25, 2001
6292051 Architecture of non-synchronous open loop demodulation circuit in pulse position modulation Sep. 18, 2001
6252453 Device and method for signal resampling between phase related clocks Jun. 26, 2001
6219380 Pulse position modulation based transceiver architecture with fast acquisition slot-locked-loop Apr. 17, 2001
6205169 Spread spectrum pulse position modulation communication system Mar. 20, 2001
6169765 Apparatus and method for output signal pulse width error correction in a communications receiver Jan. 2, 2001
6108376 Reception and demodulation of widely spaced pulse position modulated signals Aug. 22, 2000
6081493 Apparatus for demodulating digital FM signal in an optical disc device Jun. 27, 2000
6066982 Phase locked loop apparatus for pulse signal demodulation May. 23, 2000
5977822 Method and apparatus of pulse position demodulation Nov. 2, 1999
5907528 Apparatus for demodulating a digital FM signal which normally has signal inversions at data bit boundaries May. 25, 1999
5844942 Pulse position modulation communications protocol Dec. 1, 1998
5790032 Method of and apparatus for detecting living bodies Aug. 4, 1998
5694435 Digital method of detecting pulses of short duration and arrangement for implementing the method Dec. 2, 1997
5691665 PPM demodulation device Nov. 25, 1997
5661754 Receiver arrangement Aug. 26, 1997
5633742 Optical data communication and location apparatus, system and method and transmitters and receivers for use therewith May. 27, 1997
5446421 Local oscillator phase noise cancelling modulation technique Aug. 29, 1995
5313236 Demodulation processing circuit with time interval counting feature May. 17, 1994
5202644 Receiver apparatus Apr. 13, 1993
5185766 Apparatus and method for decoding biphase-coded data Feb. 9, 1993
5134632 Decoding binary-coded transmissions Jul. 28, 1992
5093844 Pulse-spacing decoder Mar. 3, 1992
5036289 Method and apparatus for synchronously demodulating detector output of a radiometer Jul. 30, 1991
5020080 Demodulation method and demodulator for digital signals with amplitudes of constant envelope, continuously modulated in phase and/or in frequency May. 28, 1991

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