Featured patents

Apparatus and Method for Mapping Symbol
US 08571123 B2, Oct. 29, 2013, DongSeung Kwon et al. / Samsung Electronics Co., Ltd. (Suwon-si, KR)
A method of mapping transmission data to a symbol in a symbol mapping apparatus…

Apparatus and Method for Mapping Symbol
US 08537917 B2, Sept. 17, 2013, Dong Seung Kwon et al. / Electronics and Telecommunications Research Institute (Daejeon, KR)
A method of mapping transmission data on a symbol in a symbol mapping apparatus…

Apparatus and Method for Transmitting Data Using a Plurality of Carriers
US 08873658 B2, Oct. 28, 2014, Seung Hee Han et al. / LG Electronics Inc. (Seoul, KR)
A method of receiving signals at a receiver, the method comprising:…

Apparatus for Transmitting and Receiving a Signal and Method of Transmitting and Receiving a Signal
US 08670494 B2, March 11, 2014, Woo Suk Ko et al. / LG Electronics Inc. (Seoul, KR)
A method of transmitting at least one broadcasting signal frame having PLP…

Apparatus for Transmitting and Receiving a Signal and Method of Transmitting and Receiving a Signal
US 08644406 B2, Feb. 4, 2014, Sang Chul Moon et al. / LG Electronics Inc. (Seoul, KR)
A transmitter for transmitting at least one broadcasting signal having PLP…

Application-Aware Dynamic Bit-Level Error Protection for Modulation-Based Communication
US 08761285 B2, June 24, 2014, Jean-Philippe Vasseur et al. / Cisco Technology, Inc. (San Jose, US)
A method, comprising:…

Direct Mm-Wave M-Ary Quadrature Amplitude Modulation (QAM) Modulator Operating in Saturated Power Mode
US 08861627 B2, Oct. 14, 2014, Sorin P. Voinigescu et al. / Fujitsu Limited (Kawasaki-shi, JP)
A method comprising:…

Frame Structure for a QAM System
US 08767856 B2, July 1, 2014, Jin H. Kim et al. / Intersil Americas LLC (Milpitas, US)
A method for variable net bit rate digital communications comprising:…

Hybrid Modulation Schemes Used in Data Communication
US 08675754 B1, March 18, 2014, Srinivas Katar et al. / QUALCOMM Incorporated (San Diego, US)
A method for transmitting information to stations in a network, the method…

Method and Apparatus for Data Transmission Based on Distributed Discrete Power Control in Cooperative Multi-User Multi-Input Multi-Output System
US 08792573 B2, July 29, 2014, Wonjin Sung et al. / LG Electronics Inc. (Seoul, KR)
A method for data transmission based on distributed discrete power control among…

Method and Device for Graphically Representing the I And/Or Q Components of Digitally Modulated High Frequency Signals
US 08699598 B2, April 15, 2014, Christoph Balz / Rohde & Schwarz GmbH & Co. KG (Munich, DE)
An arrangement for providing a graphic representation of I/Q-components…

Method for Accelerating the Precoding and Pre-Decoding of Symbols in OFDM Systems
US 08687724 B2, April 1, 2014, Yue Shang et al. / Koninklijke Philips N.V. (Eindhoven, NL)
A method for performing a fast multiple-subcarrier-joint-modulation (MSJM)…

Method of Demodulating a Quadrature Amplitude Modulation Signal and Method of Data Communication
US 08660199 B2, Feb. 25, 2014, Myeong-Cheol Shin / Samsung Electronics Co., Ltd. (Suwon-si, KR)
A method of demodulating a quadrature amplitude modulation (QAM) signal,…

Method of Estimating Sampling Clock Offset, a Sampling Clock Offset Estimator and a Receiver Comprising the Same
US 08767855 B2, July 1, 2014, Hung C. Nguyen et al. / Greenvity Communications, Inc. (Milpitas, US)
A sampling clock offset estimator in a communication system, comprising:…

Methodology and Method and Apparatus for Signaling With Capacity Optimized Constellations
US 08842761 B2, Sept. 23, 2014, Christopher R. Jones et al. / Constellation Designs, Inc. (Pacific Palisades, US)
A digital communication system, comprising:…

Mobile Communications System, Communications Apparatus, and Communications Method
US 08520757 B2, Aug. 27, 2013, Mamoru Sawahashi et al. / NTT DoCoMo, Inc. (Tokyo, JP)
A communications apparatus, comprising:…

Modulation Code Set (MCS) and LDPC (Low Density Parity Check) Coding Within Multiple User, Multiple Access, And/Or MIMO Wireless Communications
US 08767854 B2, July 1, 2014, Andrew J. Blanksby et al. / Broadcom Corporation (Irvine, US)
A wireless communication device comprising:…

Multicarrier Digital Signal Transmission System Using Filter Banks and Memory Preloading for Initialization
US 08520758 B2, Aug. 27, 2013, Maurice Bellanger / Conservatoire National des Arts et Metiers (CNAM) (Paris, FR
A filter bank based multicarrier signal transmission system, comprising:…

Multiple-Input Multiple-Output Wireless Transceiver Architecture
US 08611445 B2, Dec. 17, 2013, Gireesh Rajendran et al. / Texas Instruments Incorporated (Dallas, US)
A receiver comprising:…

Phase Correcting Apparatus and Distortion Compensating Apparatus for Radio Transmitter
US 08494069 B2, July 23, 2013, Takumi Miyashita / Fujitsu Limited (Kawasaki, JP)
A phase correcting apparatus for a radio transmitter, the phase correcting…

Pulse Modulation Circuit and Pulse Modulation Method
US 08599944 B2, Dec. 3, 2013, Shigeru Kobayashi et al. / Panasonic Corporation (Osaka, JP)
A pulse modulation circuit comprising:…

Receiver for Voice Services Over Adaptive Multi-User Channels on One Slot
US 08867644 B2, Oct. 21, 2014, Miguel Lopez / Telefonaktiebolaget L M Ericsson (Publ) (Stockholm, SE
A receiver for receiving a complex-valued baseband signal that includes noise,…

System and Method of Communication Using at Least Two Modulation Methods
US 08457228 B2, June 4, 2013, Gordon F. Bremer
A master communication device configured to communicate with one or more slave…

Systems and Methods for Implementing Receiver Transparent Q-Mode
US 08792574 B2, July 29, 2014, Marcos C. Tzannes et al. / TQ Detla, LLC (Austin, US)
A method for a multicarrier transmitter, comprising a plurality of carriers,…

Transmission Method and Transmission Apparatus
US 08532208 B2, Sept. 10, 2013, Masahiko Shimizu et al. / Fujitsu Limited (Kawasaki, JP)
A transmission apparatus that transmits, to a reception apparatus, a transmission…

Transmission Processing Method, Transmitter, Reception Processing Method, and Receiver
US 08837618 B2, Sept. 16, 2014, Mihail Petrov / Panasonic Corporation (Osaka, JP)
A transmission processing method comprising:…

Transmitter, Transmission Method, Receiver, and Reception Method
US 08548079 B2, Oct. 1, 2013, Tomohiko Taniguchi et al. / Fujitsu Limited (Kawasaki, JP)
A transmitter for transmitting signals obtained by associating a plurality of bit…

Use of Orthonormal Transformation for Improving Performance of Digital Transmission Under Heavily Faded Channels With Doppler Effects
US 08867645 B2, Oct. 21, 2014, Dhadesugoor Vaman et al. / Digital Compression Technology, LLC (New York, US)
An error correction method for use in a digital communications system comprising:…

Patentorg has 28 documents under Quadrature Amplitude Modulation Patents.

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