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Class Information
Number: 370/210
Name: Multiplex communications > Generalized orthogonal or special mathematical techniques > Fourier transform
Description: Subject matter utilizing a special mathematical relationship that provides a connection between information in the frequency domain and the time domain.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7627046 |
Waveform generation for improved peak-to-average amplitude ratio |
Dec. 1, 2009 |
| 7627047 |
Orthogonal frequency division multiplexing (OFDM) receiver |
Dec. 1, 2009 |
| 7626923 |
Method and apparatus of the variable points IFFT/FFT |
Dec. 1, 2009 |
| 7620115 |
Space code block coding and spreading apparatus and method for transmission diversity and CDMA diversity transmitter and CDMA mobile station receiver using the same |
Nov. 17, 2009 |
| 7620367 |
Frequency domain unscheduled transmission in a TDD wireless communications system |
Nov. 17, 2009 |
| 7620112 |
Adaptive basis functions in a multicarrier communication system |
Nov. 17, 2009 |
| 7619964 |
High doppler channel estimation for OFD multiple antenna systems |
Nov. 17, 2009 |
| 7616557 |
Method and apparatus for canceling intercarrier interference through conjugate transmission for multicarrier communication systems |
Nov. 10, 2009 |
| 7613104 |
Method, apparatus and computer program product providing synchronization for OFDMA downlink signal |
Nov. 3, 2009 |
| 7613245 |
Method and apparatus for multiplexing data and control information in wireless communication systems based on frequency division multiple access |
Nov. 3, 2009 |
| 7609611 |
Method for transmitting an offset modulated biorthogonal multicarrier signal (BFDM/OM) |
Oct. 27, 2009 |
| 7609612 |
Multi-carrier transmitter for ultra-wideband (UWB) systems |
Oct. 27, 2009 |
| 7606139 |
Preamble detection using frequency based correlation |
Oct. 20, 2009 |
| 7606138 |
Multi-symbol encapsulated OFDM system |
Oct. 20, 2009 |
| 7606137 |
Cancellation systems for multicarrier transceiver arrays |
Oct. 20, 2009 |
| 7602855 |
Method and apparatus for singular value decomposition of a channel matrix |
Oct. 13, 2009 |
| 7599327 |
Method and apparatus for accessing a wireless communication system |
Oct. 6, 2009 |
| 7596181 |
Apparatus and method for frequency synchronization in OFDM system |
Sep. 29, 2009 |
| 7593754 |
Receiving apparatus and receiving method of communication system with multiple antennas |
Sep. 22, 2009 |
| 7593729 |
Point to point link and communication method |
Sep. 22, 2009 |
| 7593378 |
SINR-based powerdown apparatus and method for a wireless communications systems |
Sep. 22, 2009 |
| 7590045 |
Apparatus and method for transmitting fast feedback information in a wireless communication system |
Sep. 15, 2009 |
| 7590183 |
Generating signals for transmission of information |
Sep. 15, 2009 |
| 7586988 |
Transmitting apparatus, receiving apparatus, communication system, and multiplex timing compensation method |
Sep. 8, 2009 |
| 7586837 |
Acquisition of a gated pilot signal |
Sep. 8, 2009 |
| 7586836 |
Apparatus and method for transmitting/receiving pilot signals in a communication system using an orthogonal frequency division multiplexing scheme |
Sep. 8, 2009 |
| 7587212 |
System and method for allocating ranging slots in a broadband wireless access communication system |
Sep. 8, 2009 |
| 7583766 |
System, and associated method, for utilizing block BLAST with PPIC in a MIMO multicode MC-CDMA system |
Sep. 1, 2009 |
| 7583738 |
Apparatus and method for reducing peak-to-average power ratio in orthogonal frequency division multiplexing communication system |
Sep. 1, 2009 |
| 7583736 |
Radio transmission device, radio reception device, and method for selecting transmission cancellation subcarriers |
Sep. 1, 2009 |
| 7583586 |
Apparatus and method for transmitting/receiving pilot signal in communication system using OFDM scheme |
Sep. 1, 2009 |
| 7583584 |
System and method for time diversity |
Sep. 1, 2009 |
| 7580446 |
Radio communication apparatus and radio communication method |
Aug. 25, 2009 |
| 7580487 |
Apparatus and method for estimating a carrier to interference and noise ratio in a communication system |
Aug. 25, 2009 |
| 7577216 |
Guard interval and FFT mode detector in DVB-T receiver |
Aug. 18, 2009 |
| 7577087 |
Faster fine timing operation in multi-carrier system |
Aug. 18, 2009 |
| 7573805 |
Data transmission and reception method and apparatus |
Aug. 11, 2009 |
| 7573807 |
Method and apparatus for performing differential modulation over frequency in an orthogonal frequency division multiplexing (OFDM) communication system |
Aug. 11, 2009 |
| 7574179 |
Mobile broadband wireless network with interference mitigation mechanism to minimize interference within a cluster during multiple concurrent transmissions |
Aug. 11, 2009 |
| 7564908 |
Method and apparatus for encryption of over-the-air communications in a wireless communication system |
Jul. 21, 2009 |
| 7564909 |
Apparatus and method for detecting ranging signal in an orthogonal frequency division multiple access mobile communication system |
Jul. 21, 2009 |
| 7561637 |
Determination of a channel estimate of a transmission channel |
Jul. 14, 2009 |
| 7561628 |
Apparatus and method for cell acquisition and downlink synchronization acquisition in a wireless communication system |
Jul. 14, 2009 |
| 7561626 |
Method and system for channel estimation in a data transmission system |
Jul. 14, 2009 |
| 7561511 |
Configurable OFDM transceiver |
Jul. 14, 2009 |
| 7558238 |
Hybrid multiple access waveform, method, and apparatus |
Jul. 7, 2009 |
| 7554902 |
Preamble design for frequency offset estimation and channel equalization in burst OFDM transmission system |
Jun. 30, 2009 |
| 7551545 |
Subband-based demodulation for an OFDM-based communication system |
Jun. 23, 2009 |
| 7551677 |
OFDM pilot tone tracking for wireless LAN |
Jun. 23, 2009 |
| 7548522 |
Orthogonal frequency division multiplexing wireless communication operable on frequency selective channel, and channel compensation method |
Jun. 16, 2009 |
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