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Browse by Category: Main > Communications
Class Information
Number: 375/260
Name: Pulse or digital communications > Systems using alternating or pulsating current > Plural channels for transmission of a single pulse train
Description: Subject matter in which more than one transmission channel is utilized to convey one pulse train.










Sub-classes under this class:

Class Number Class Name Patents
375/267 Diversity 3,266
375/261 Quadrature amplitude modulation 1,183


Patents under this class:

Patent Number Title Of Patent Date Issued
RE44867 Apparatus and methods for providing efficient space-time structures for preambles, pilots and data for multi-input, multi-output communications systems Apr. 29, 2014
8711991 Method and a channel estimating arrangement for performing channel estimation Apr. 29, 2014
8711990 Frame syncrhonization in orthogonal frequency-division multiplexing systems Apr. 29, 2014
8711987 Method and receiver for jointly decoding received communication signals using maximum likelihood detection Apr. 29, 2014
8711977 Method for transmitting a signal Apr. 29, 2014
8711969 Global codebook for coordinated multi-point processing Apr. 29, 2014
8711965 Method and apparatus for optimizing transmission diversity Apr. 29, 2014
8711964 Method and apparatus for pre-scheduling in closed-loop MU-MIMO antenna system Apr. 29, 2014
8711957 Apparatus and method for transmitting and receiving data Apr. 29, 2014
8711921 System and method for multi-threaded MIMO OFDM channel equalizer Apr. 29, 2014
8711920 System and method for multi-threaded OFDM channel equalizer Apr. 29, 2014
8711907 PMI feedback with codebook interpolation Apr. 29, 2014
8711898 Ultra-wideband communication system and method Apr. 29, 2014
8711770 Base station apparatus and communication control method Apr. 29, 2014
8705956 Carrier frequency offset (CFO) estimator with low complexity and high accuracy for orthogonal-frequency-division-multiplexing (CO-OFDM) systems Apr. 22, 2014
8705676 Method and apparatus for clock recovery in XDSL transceivers Apr. 22, 2014
8705668 Calculation of soft values for uplink communication Apr. 22, 2014
8705660 Apparatuses and methods for data transmission and reception Apr. 22, 2014
8705656 Transmission and reception apparatus and method Apr. 22, 2014
8705653 Method of generating reference signal in wireless communication system Apr. 22, 2014
8705651 Wireless communication system, wireless communication apparatus, and wireless communication method Apr. 22, 2014
8705650 Wireless communication system, wireless communication apparatus, and wireless communication method Apr. 22, 2014
8705647 Maximum-likelihood MIMO demodulation for frequency-selective channels Apr. 22, 2014
8705645 MIMO transmitter and method for transmitting OFDM symbols Apr. 22, 2014
8705644 Method for generating and transmitting a reference signal for uplink demodulation in a clustered DFT-spread OFDM transmission scheme Apr. 22, 2014
8705643 Channel estimation for a control channel in an OFDM system Apr. 22, 2014
8705642 Method for mitigating interference in OFDM communications systems Apr. 22, 2014
8705641 Orthogonal frequency division multiplexing-code division multiple access system Apr. 22, 2014
8705640 Digital broadcast transmission and receiving system having an improved receiving performance and signal processing method thereof Apr. 22, 2014
8705634 Compression of baseband signals in base transceiver systems Apr. 22, 2014
8705590 Code generating apparatus, reference signal generating apparatus, and methods thereof Apr. 22, 2014
8705480 Communications apparatus and communications system using multicarrier transmission mode Apr. 22, 2014
8705474 Method and apparatus for transmitting reference signal in multi-antenna system Apr. 22, 2014
8705469 Method of sending a data signal via a plurality of transmitter entities Apr. 22, 2014
8705459 Method for multiplexing control signals in a mobile communication system Apr. 22, 2014
8705392 MU-MIMO-OFDMA multi-rank CQI and precoder signaling schemes Apr. 22, 2014
8705389 Quality control scheme for multiple-input multiple-output (MIMO) orthogonal frequency division multiplexing (OFDM) systems Apr. 22, 2014
8705338 System and method for data scrambling to reduce the crest factor in an OFDM waveform Apr. 22, 2014
8693679 Communications system and associated method for reducing power consumption of a telecommunications device Apr. 8, 2014
8693599 Wireless receiving apparatus Apr. 8, 2014
8693590 Joint special burst and transport format combination index (TFCI) detection Apr. 8, 2014
8693585 Communication apparatus and communication method Apr. 8, 2014
8693577 Multi-antenna communication systems utilizing RF-based and baseband signal weighting and combining Apr. 8, 2014
8693575 Wireless precoding methods Apr. 8, 2014
8693574 Method and apparatus for determining a precoding matrix for precoding symbols to be transmitted to a plurality of wireless devices Apr. 8, 2014
8693573 Method for setting cyclic shift considering frequency offset Apr. 8, 2014
8693572 Method for transmitting signal of orthogonal frequency division multiplexing type, and apparatus applied to the same Apr. 8, 2014
8693569 Methods and apparatus for dynamic wireless device coexistence Apr. 8, 2014
8693568 Method and apparatus for estimating channel using dedicated pilot signal in OFDM-based wireless communication system Apr. 8, 2014
8693566 Methods and systems for combined cyclic delay diversity and precoding of radio signals Apr. 8, 2014











 
 
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