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Class Information
Number: 370/533
Name: Multiplex communications > Communication techniques for information carried in plural channels > Combining or distributing information via time channels > Multiplexer or distributor using pulse amplitude modulation
Description: Subject matter directed to (a) a scanning or sampling switch (multiplexer) operating above the Nyquist rate, or to (b) a demultiplexer or desampling switch (distributor) so operating, and in which the signals respectively from or to the multiplexer or distributor are transmitting in pulse amplitude modulated format (PAM).

Patents under this class:

Patent Number Title Of Patent Date Issued
8618542 Response and header circuitry with command and frame marker inputs Dec. 31, 2013
8445908 Parallel scan paths with stimulus and header data circuitry May. 21, 2013
8442452 Integrated multimode radio transmitter and components thereof May. 14, 2013
8385187 Method for retrieving data from ultra wideband radio transmission signals and receiver implementing said method Feb. 26, 2013
8321903 External services allocation in closed on-demand systems Nov. 27, 2012
8243763 Method and apparatus for generating information signal to be recorded Aug. 14, 2012
8218583 Method and apparatus for generating information signal to be recorded Jul. 10, 2012
8218582 Method and apparatus for generating information signal to be recorded Jul. 10, 2012
8218581 Method and apparatus for generating information signal to be recorded Jul. 10, 2012
8213468 Method and apparatus for generating information signal to be recorded Jul. 3, 2012
8089993 Sliceable router with packet over optical OFDM transmission Jan. 3, 2012
8072873 Adaptive coding and modulation using linked list data structures Dec. 6, 2011
8068571 Featureless coherent chaotic amplitude modulation Nov. 29, 2011
7844230 Integrated multimode radio and components thereof Nov. 30, 2010
7804761 Multiplexing separately modulated channels Sep. 28, 2010
7738513 Method for inverse multiplexing Jun. 15, 2010
7675842 Adaptive coding and modulation using linked list data structures Mar. 9, 2010
7623554 Multiplexing device, a demultiplexing device, and a multiplexing/demultiplexing system Nov. 24, 2009
7561852 Integrated multimode radio and components thereof Jul. 14, 2009
7436856 Method for transmitting voice data packets Oct. 14, 2008
7412208 Transmission system for transmitting RF signals, power and control signals via RF coaxial cables Aug. 12, 2008
7369580 Amplitude limiting circuit and CDMA communication apparatus May. 6, 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
7257380 Integrated multimode radio and components thereof Aug. 14, 2007
7158576 Orthogonally-multiplexed orthogonal amplitude modulation method Jan. 2, 2007
7065167 Method and apparatus for constellation shaping Jun. 20, 2006
7027466 Multiplexer, demultiplexer and multiplex communication system Apr. 11, 2006
7023809 Intelligent concentrator usage Apr. 4, 2006
6917654 Increased digital bandwidth carried on an analog signal cycle using a data structure Jul. 12, 2005
6738173 Limiting amplifier modulator driver May. 18, 2004
6711121 Orthogonal code division multiplexing for twisted pair channels Mar. 23, 2004
6614814 Multiplexed signal demultiplexing device transmission error measuring device and transmission error measuring method Sep. 2, 2003
6560673 Fibre channel upgrade path May. 6, 2003
6356562 High-speed communications system for providing voice and data services Mar. 12, 2002
6188703 Multiplexer for multiple media streams Feb. 13, 2001
4831621 Device for analog multiplexing by charge transfer devices May. 16, 1989
4628493 Sensor system with time division multiplexing telemetry Dec. 9, 1986
4473901 Self clocking sampled analog data transmission system Sep. 25, 1984
4407020 Automatic compensation circuit and method Sep. 27, 1983
4352179 Time domain multiplexing apparatus for multiple microphones Sep. 28, 1982
4191856 Analog multiplexer Mar. 4, 1980
4184052 AM/FM time division surface wave device transmitter Jan. 15, 1980
4161628 Technique for tracking amplitude fades for multi-amplitude signalling Jul. 17, 1979
4070650 Digital signal transmission system and equipment Jan. 24, 1978
4039948 Multi-channel differential pulse code modulation system Aug. 2, 1977
4032720 Integrated demultiplexing circuit with continuously variable outputs Jun. 28, 1977
3987249 System for addressed timemultiplexed telecommunication Oct. 19, 1976
3979561 Level-code encoded multiplexer Sep. 7, 1976

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