Featured patents

Apparatus and Method for Scrambling in a Wireless Communication System
US 08605821 B2, Dec. 10, 2013, Bo-Rham Lee et al. / Samsung Electronics Co., Ltd. (Suwon-si, KR)
An apparatus for a transmit end in a wireless communication system, the apparatus…

Apparatus and Methods for QAM Modulation Using Dual Polar Modulation
US 08660208 B2, Feb. 25, 2014, David Pezo et al. / QUALCOMM Incorporated (San Diego, US)
A method of quadrature amplitude modulation (QAM) of data in a communication…

Circuit Transmission Apparatus and Transmission Method
US 08855235 B2, Oct. 7, 2014, Kazuya Kitasako et al. / Fujitsu Semiconductor Limited (Yokohama, JP)
A transmission apparatus, comprising:…

Communications Transmitter Having High-Efficiency Combination Modulator
US 08811533 B2, Aug. 19, 2014, Earl W. McCune, Jr.
A communications transmitter, comprising:…

Constellation Mapping Method
US 08798200 B2, Aug. 5, 2014, Qianzi Xu et al. / ZTE Corporation (Shenzhen, Guangdong Province, CN)
A constellation mapping method, comprising:…

Digital Broadcasting Systems Using Parallel Concatenated Coding of Bit-Complementary Bitstreams
US 08718189 B2, May 6, 2014, Allen LeRoy Limberg
Transmitter apparatus for a digital broadcasting system, said transmitter…

Digital Quadrature Transmitter Using Generalized Coordinates
US 08781026 B2, July 15, 2014, Khurram Muhammad et al. / MStar Semiconductor, Inc. (Hsinchu Hsien, TW)
A method used in a digital quadrature transmitter, comprising:…

Direct Digital Synthesis of Quadrature Modulated Signals
US 08848831 B2, Sept. 30, 2014, Roger A. Fratti / LSI Corporation (San Jose, US)
An apparatus comprising:…

Generation of Radio Frequency Outputs
US 08520774 B1, Aug. 27, 2013, Michael B. Harrington / Arris Enterprises, Inc. (Suwanee, US)
A system, comprising:…

Integrated Circuit for Controlling a Process
US 08817911 B2, Aug. 26, 2014, Christian Wengerter et al. / Panasonic Intellectual Property Corporation of America (Torrance, US)
An integrated circuit for controlling a process comprising:…

Log Likelihood Ratio Arithmetic Circuit, Transmission Apparatus, Log Likelihood Ratio Arithmetic Method, and Program
US 08675771 B2, March 18, 2014, Eisaku Sasaki / NEC Corporation (Tokyo, JP)
A log likelihood ratio arithmetic circuit for calculating a log likelihood ratio…

Method and Apparatus for Mapping Quadrature Amplitude Modulation Symbol
US 08861642 B2, Oct. 14, 2014, Jun-yeub Lee et al. / Samsung Electronics Co., Ltd. (Suwon-si, KR)
A quadrature amplitude modulation (QAM) symbol mapping apparatus comprising:…

Method and Apparatus for Performing HARQ in Wireless Communication System
US 08625716 B2, Jan. 7, 2014, Seung Hyun Kang et al. / LG Electronics Inc. (Seoul, KR)
A method of performing hybrid automatic repeat request (HARQ) increment…

Method and Device for Modulating the Information of TFCI
US 08611461 B2, Dec. 17, 2013, Shiyan Ren et al. / China Academy of Telecommunications Technology (Beijing, CN)
A method for modulating Transport Format Combination Indicator TFCI information,…

Method and System to Reduce PAPR in Single Carrier and SCBT Communications Systems
US 08494087 B2, July 23, 2013, Seyed-Alireza Seyedi-Esfahani / Koninklijke Philips N.V. (Eindhoven, NL)
A method for reducing peak to average power ratio (PAPR) of a consecutive stream…

Method for Providing a Modulation Scheme
US 08848830 B2, Sept. 30, 2014, Thorsten Clevorn / Intel Mobile Communications GmbH (Neubiberg, DE)
A method for providing a first modulation scheme based on a second modulation…

Method of Transmitting Data in Wireless Communication System
US 08605820 B2, Dec. 10, 2013, Min Seok Oh et al. / LG Electronics Inc. (Seoul, KR)
A transmitter comprising:…

Method of Transmitting Symbols
US 08693576 B2, April 8, 2014, Eleonora Guerrini / Dora S.p.A. (Aosta, Ao, IT)
A method of transmitting symbols of a digital transmission constellation,…

Multidimensional Constellations for Coded Transmission
US 08867662 B2, Oct. 21, 2014, Ozgur Dural et al. / QUALCOMM Incorporated (San Diego, US)
A method of rotating a multidimensional constellation in a communication system,…

Multidimensional Constellations for Coded Transmission
US 08724738 B2, May 13, 2014, Ozgur Dural et al. / QUALCOMM Incorporated (San Diego, US)
A method of transmitting a multidimensional constellation using a plurality…

Pilot Symbol Generation for Highly-Spectrally-Efficient Communications
US 08665992 B1, March 4, 2014, Amir Eliaz / MagnaCom Ltd. IL
A method, comprising:…

Quadrature Communications Device With Power Combiner and Related Methods
US 08594233 B2, Nov. 26, 2013, Khurram Muhammad / BlackBerry Limited (Waterloo, Ontario, CA)
A communications device comprising:…

Systems and Methods for Communicating Using ASK or QAM With Uneven Symbol Constellation
US 08817910 B2, Aug. 26, 2014, Paul Carpenter et al. / Blackberry Limited (Waterloo, Ontario, CA)
A transmitter comprising:…

Transmission Circuit and Communication Device
US 08565344 B2, Oct. 22, 2013, Ryo Kitamura et al. / Panasonic Corporation (Osaka, JP)
A transmission circuit for outputting a transmission signal, comprising:…

Transmission Device and Modulation Method
US 08548094 B2, Oct. 1, 2013, Hiroaki Hirai / Mitsubishi Electric Corporation (Tokyo, JP)
A transmission device for transmitting a modulated signal including an in-phase…

Wireless Precoding Methods
US 08693575 B2, April 8, 2014, Anand G. Dabak et al. / Texas Instruments Incorporated (Dallas, US)
A wireless transmitter comprising:…

Patentorg has 26 documents under Quadrature Amplitude Modulation Patents.

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