US Patent No: 8,155,224

Number of patents in Portfolio can not be more than 2000

Transmission method, transmission apparatus, and reception apparatus

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Abstract

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A transmission method for transmitting modulation signals of a plurality of channels to the same frequency band from a plurality of antennas. At the time when a symbol used for demodulation is inserted in a channel, in another channel symbol, the same phase and quadrature signals in the in-phase-quadrature plane are made to be zero signals. Thus, a plurality of modulation signals are multiplexed and transmitted and the transmitted multiplexed modulation signals are demultiplexed and demodulated at a reception apparatus, thereby improving the data transmission rate.

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First Claim

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Patent Owner(s)

Patent OwnerAddressTotal Patents
WI-FI ONE, LLCPLANO, TX105

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Matsuoka, Akihiko Yokohama, JP 163 1597
Murakami, Yutaka Kawasaki, JP 358 2163
Orihashi, Masayuki Ichikawa, JP 175 1556

Cited Art Landscape

Patent Info (Count) # Cites Year
 
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SONY CORPORATION (1)
6,888,789 Transmitting apparatus, receiving apparatus, communication system, transmission method, reception method, and communication method 51 2000
 
NOKIA TECHNOLOGIES OY (1)
2002/0172,293 Non-zero complex weighted space-time code for multiple antenna transmission 51 2001
 
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AT&T WIRELESS SERVICES, INC. (1)
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NEC CORPORATION (4)
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GOOGLE TECHNOLOGY HOLDINGS LLC (1)
7,139,237 Method and system for multirate multiuser modulation 31 2001
 
APPLE INC. (8)
6,850,481 Channels estimation for multiple input--multiple output, orthogonal frequency division multiplexing (OFDM) system 133 2000
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7,336,601 Adaptive time diversity and spatial diversity for OFDM 22 2005
2007/0036,069 Adaptive time diversity and spatial diversity for OFDM 19 2006
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UNWIRED PLANET, LLC (1)
6,888,903 Digital communication receiver and a method for the operation thereof 20 2000
 
WI-FI ONE, LLC (4)
6,625,111 OFDM communication apparatus 46 2000
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2004/0240,571 Transmission method, transmission apparatus, and reception apparatus 25 2004
7,359,457 Transmission apparatus, reception apparatus and digital radio communication method 14 2004
 
RPM PARTNERSHIP (1)
2002/0065,047 Synchronization, channel estimation and pilot tone tracking system 130 2001
 
QUALCOMM INCORPORATED (2)
6,473,467 Method and apparatus for measuring reporting channel state information in a high efficiency, high performance communications system 567 2000
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ALCATEL-LUCENT USA INC. (1)
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ERICSSON INC. (1)
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INTEL CORPORATION (1)
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NIPPON TELEGRAPH AND TELEPHONE CORPORATION (2)
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Varco I/P, Inc. (1)
6,205,166 CDMA receiver with antenna array adaptively controlled with combined errors of despread multipath components 37 1998
 
PANASONIC INTELLECTUAL PROPERTY CORPORATION OF AMERICA (2)
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7,266,167 Reception apparatus 19 2002
 
SONOCO DEVELOPMENT, INC. (1)
7,131,380 EB pattern profile printing 7 2001
 
AT&T CORP. (1)
* 6,654,429 Pilot-aided channel estimation for OFDM in wireless systems 145 1999
* Cited By Examiner

Patent Citation Ranking

Forward Cite Landscape

Patent Info (Count) # Cites Year
 
WI-FI ONE, LLC (5)
8,891,678 Receiving apparatus and receiving method 0 2013
* 8,744,005 Method and apparatus for generating modulation signals 2 2013
9,048,988 Transmission signal generation apparatus, transmission signal generation method, reception signal generation apparatus, and reception signal generation method 0 2013
8,934,578 Method of demodulating modulation signals 0 2014
9,374,209 Transmission signal generation apparatus, transmission signal generation method, reception signal apparatus, and reception signal method 0 2015
 
PANASONIC INTELLECTUAL PROPERTY CORPORATION OF AMERICA (3)
8,982,998 Transmission and reception apparatus and method 0 2014
9,160,596 Transmission and reception signal processor and method 0 2015
9,363,124 Transmission and reception signal processor and method 0 2015
* Cited By Examiner

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