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Class Information
Number: 375/302
Name: Pulse or digital communications > Transmitters > Angle modulation
Description: Subject matter where the digital information or pulses to be transmitted vary the phase angle or frequency of a carrier wave.

Sub-classes under this class:

Class Number Class Name Patents
375/303 Frequency shift keying 254
375/308 Phase shift keying 730

Patents under this class:
1 2 3 4 5 6 7 8

Patent Number Title Of Patent Date Issued
8705657 Digital signal processing circuit for generating output signal according to non-overlapping clock signals and input bit streams and related wireless communication transmitters Apr. 22, 2014
8693560 Transmission apparatus, transmission method, communication system, and communication method Apr. 8, 2014
8687733 Digital predistortion (DPD) method and system for selecting at least one data sample Apr. 1, 2014
8681894 Digital affine transformation modulated power amplifier for wireless communications Mar. 25, 2014
8681898 Signal amplifying apparatus, wireless transmitting apparatus, and signal amplifying method Mar. 25, 2014
8665995 Dual channel transmission Mar. 4, 2014
8660205 Energy efficient constellation method and system Feb. 25, 2014
8639190 Precoding for segment sensitive scheduling in wireless communication systems Jan. 28, 2014
8638880 Radio base station and user equipment and methods therein Jan. 28, 2014
8630364 Termination techniques for multi-index continuous phase encoders for wireless networks Jan. 14, 2014
8630370 Apparatus and method for compensating for IQ mismatch in mobile communication system Jan. 14, 2014
8605773 Apparatus and method for data communication using radio frequency Dec. 10, 2013
8605822 Apparatus and method for transmitting and receiving data Dec. 10, 2013
8599965 Wireless communication apparatus Dec. 3, 2013
8588338 Driver circuit for driving a power amplifier Nov. 19, 2013
8588336 Methods and apparatuses for compensation of I/Q imbalance Nov. 19, 2013
8576948 Angle modulator, transmission device, and wireless communication device Nov. 5, 2013
8576947 System and method for simultaneous MIMO signal testing with single vector signal analyzer Nov. 5, 2013
8565338 High bandwidth modulation and transmission Oct. 22, 2013
8565348 Radio transmitting apparatus Oct. 22, 2013
8559553 Transmitter apparatus Oct. 15, 2013
8553806 Quadrature modulation without carrier Oct. 8, 2013
8552894 Sigma-delta modulator having a feed-forward path and a hybrid portion Oct. 8, 2013
8553805 Method and apparatus for subband signal demodulation in a transponder satellite communication link containing a component of relayed interference Oct. 8, 2013
8542773 Digital RF converter, digital RF modulator and transmitter including the same Sep. 24, 2013
8532224 Signal processing circuit and method with frequency up- and down-conversion Sep. 10, 2013
8532590 Digital phase feedback for determining phase distortion Sep. 10, 2013
8520767 Transmission circuit and communication apparatus using polar modulation method Aug. 27, 2013
8514965 Wireless communication system with a modulation bandwidth comparable to or exceeding the bandwidth of the transmitter and/or receiver antennas Aug. 20, 2013
8514977 Transmission apparatus, reception apparatus, transmission method, and reception method of wireless communication system Aug. 20, 2013
8509351 Multi-mode radio frequency modulation circuitry Aug. 13, 2013
8503573 Bits-to-symbol mapping method for 4+12+16 APSK modulation Aug. 6, 2013
8494087 Method and system to reduce PAPR in single carrier and SCBT communications systems Jul. 23, 2013
8488539 Method of generating preamble sequence Jul. 16, 2013
8483295 Encoded signal arrangement method in multi-carrier communication and communication device Jul. 9, 2013
8483312 Methods and apparatus for reducing the average-to-minimum magnitude ratio of communications signals in communications transmitters Jul. 9, 2013
8483316 Modulation apparatus, modulation method, demodulation apparatus, and demodulation method Jul. 9, 2013
8477870 Transmitter including polar modulation circuit Jul. 2, 2013
8472559 Polar transmitter and related signal transmitting method Jun. 25, 2013
8472896 Method and apparatus for transformer power combiner and dynamic power control for outphasing power amplifiers Jun. 25, 2013
8462837 Constellation-multiplexed transmitter and receiver Jun. 11, 2013
8457247 In-band generation of low-frequency periodic signaling Jun. 4, 2013
8451935 Transmission device, communication system, transmission method and program May. 28, 2013
8446976 Signal generator with adjustable phase May. 21, 2013
8442136 Method and apparatus for using control channel format indicator (CCFI) codewords in a wireless communication system May. 14, 2013
8442461 Transmitter and semiconductor integrated circuit available for it May. 14, 2013
8442144 Closed loop feedback system for improved down link performance May. 14, 2013
8422581 Multi-antenna transmission device, multi-antenna reception device, multi-antenna transmission method, multi-antenna reception method, terminal device, and base station device Apr. 16, 2013
8411788 Digital transmitters for wireless communication Apr. 2, 2013
8411793 Digital amplitude modulation Apr. 2, 2013

1 2 3 4 5 6 7 8

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