Radio communication system

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 5652764
SERIAL NO

08586160

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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Transmission data is spread by spreaders through two orthogonal codes generated by orthogonal code generators, the spread signals are subjected to binary phase modulation with a given carrier wave by BPSK modulators, and are then transmitted from separate antennas positioned in differing spatial locations. Thus, it is possible to provide a radio communication system capable of realizing transmission diversity even in the case of initial transmission where there is yet no information regarding the location, direction, etc., of a partner station, or where a base station is to transmit data directed to all of a plurality of mobile stations, such as in mobile communication systems.

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First Claim

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Patent Owner(s)

Patent OwnerAddressTotal Patents
KABUSHIKI KAISHA TOSHIBATOKYO24985

International Classification(s)

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  • [Patents Count]

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Kanzaki, Kiyoko Kamakura, JP 2 133
Takahashi, Hidehiro Yokohama, JP 8 133

Cited Art Landscape

Patent Info (Count) # Cites Year
 
AKAMAI TECHNOLOGIES, INC. (1)
* 2009/0132,648 CONTENT DELIVERY AND GLOBAL TRAFFIC MANAGEMENT NETWORK SYSTEM 82 2009
 
Nippon Electric Co., Ltd. (1)
* 4490830 Radio signal transmission system including a plurality of transmitters for transmitting a common signal 36 1982
 
AT&T IPM CORP. (1)
* 5457712 Method for providing time diversity 46 1994
 
AT&T LABS, INC. (2)
* 5305353 Method and apparatus for providing time diversity 121 1992
* 5289499 Diversity for direct-sequence spread spectrum systems 64 1992
 
MATSUSHITA ELECTRIC WORKS, LTD. (1)
* 5280631 Polarization diversity system suitable for radio communication in indoor space 17 1992
 
AT&T CORP. (1)
* 5394435 Diversity for direct-sequence spread spectrum systems 78 1994
 
CANON KABUSHIKI KAISHA (1)
* 5203018 Space diversity system switching transmission 52 1990
* Cited By Examiner

Patent Citation Ranking

Forward Cite Landscape

Patent Info (Count) # Cites Year
 
MOTOROLA MOBILITY LLC (1)
* 2009/0323,783 CALIBRATION TECHNIQUES FOR MIMO WIRELESS COMMUNICATION SYSTEMS 12 2008
 
Other [Check patent profile for assignment information] (2)
* 2005/0180,492 Method for subtracting multiple rays of multiple interfering received signals 6 2005
* 2008/0200,990 Tissue sparing implant 14 2007
 
NOKIA SOLUTIONS AND NETWORKS GMBH & CO. KG (2)
* 7039368 Method for controlling the formation of a downlink beam 1 2001
* 2004/0082,299 Method for controlling the formation of a downlink beam 2 2002
 
TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY, LTD. (3)
* 6522639 Transmission/reception apparatus and transmit power control method 50 1999
* 6545991 Diversity method 3 2000
* 6507574 Transmission/reception apparatus and transmit power control method 22 2000
 
FRAUNHOFER-GESELLSCHAFT ZUR FOERDERUNG DER ANGEWANDTEN FORSCHUNG E.V. (1)
* 7173979 Method and device for transmitting information symbols using a plurality of carriers and method and device for receiving information symbols 17 1999
 
III HOLDINGS 11, LLC (2)
6519238 Transmission apparatus and base station apparatus using the same 4 1999
RE41819 Transmission apparatus and base station apparatus using the same 0 2007
 
SAMSUNG ELECTRONICS CO., LTD. (3)
6963601 Apparatus and method for spreading channel data in CDMA communication system using orthogonal transmit diversity 1 2000
6904030 Pilot channel power measurement means for a mobile station in asynchronous CDMA communication system 20 2001
* 2003/0002,454 Pilot channel power measurement means for a mobile station in asynchronous CDMA communication system 3 2001
 
PANASONIC INTELLECTUAL PROPERTY CORPORATION OF AMERICA (1)
* 6252864 CDMA communication apparatus and CDMA communication method 28 1998
 
HITACHI, LTD. (7)
* 5930244 CDMA Communication system and method 26 1997
* 6137786 CDMA communication system and method 10 1999
6597676 CDMA communication system and method 7 2000
7545777 CDMA communication system and method 0 2003
* 2003/0214,932 CDMA communication system and method 8 2003
7916699 CDMA communication system and method 0 2009
* 2009/0245,210 CDMA COMMUNICATION SYSTEM AND METHOD 1 2009
 
InterDigital Technology Corporation (35)
* 6115406 Transmission using an antenna array in a CDMA communication system 69 1999
6373877 User equipment for use in a CDMA communication system using an antenna array 12 2000
6278726 Interference cancellation in a spread spectrum communication system 88 2000
6574271 Spread spectrum receiver for receiving a data signal using an adaptive algorithm 33 2001
* 2002/0110,108 Simple block space time transmit diversity using multiple spreading codes 4 2001
* 6983008 Base station for use in a CDMA communication system using an antenna array 4 2002
6574265 CDMA communication system using an antenna array 0 2002
6560300 CDMA communication system using an antenna array 11 2002
* 2002/0094,016 Base station for use in a CDMA communication system using an antenna array 1 2002
* 2002/0093,927 Simple block space time transmit diversity using multiple spreading codes 2 2002
* 2002/0089,953 Simple block space time transmit diversity using multiple spreading codes 5 2002
* 2002/0089,955 Simple block space time transmit diversity using multiple spreading codes 2 2002
* 2002/0075,832 Simple block space time transmit diversity using multiple spreading codes 6 2002
* 2002/0080,746 Simple block space time transmit diversity using multiple spreading codes 2 2002
* 2002/0097,699 Transmit diversity using multiple spreading codes 2 2002
6782040 Interference cancellation in a spread spectrum communication system 4 2003
6985515 Interference cancellation in a spread spectrum communication system 1 2004
* 2005/0025,224 Interference cancellation in a spread spectrum communication system 0 2004
7746830 System and method for maintaining wireless channels over a reverse link of a CDMA wireless communication system 1 2005
7545846 Interference cancellation in a spread spectrum communication system 0 2005
7813413 Antenna array communication using spreading codes 0 2005
* 2006/0098,720 Antenna array communication using spreading codes 0 2005
7684469 Code division multiple access transmission antenna weighting 0 2006
* 2007/0091,985 CODE DIVISION MULTIPLE ACCESS TRANSMISSION ANTENNA WEIGHTING 3 2006
* 7613226 Method and apparatus for transferring signals in a wireless communication system 0 2008
* 2008/0285,629 METHOD AND APPARATUS FOR TRANSFERRING SIGNALS IN A WIRELESS COMMUNICATION SYSTEM 0 2008
7953139 Interference cancellation in a spread spectrum communication system 1 2009
* 8005129 Acquisition circuit for low chip rate option for mobile telecommunication system 0 2009
8073067 Method and apparatus for transferring signals in a wireless communication system 0 2009
8311492 Simple block space time transmit diversity using multiple spreading codes 1 2009
9219522 Code division multiple access transmission antenna weighting 0 2010
* 2011/0026,496 CODE DIVISION MULTIPLE ACCESS TRANSMISSION ANTENNA WEIGHTING 0 2010
9036680 Interference cancellation in a spread spectrum communication system 0 2011
* 2011/0228,710 INTERFERENCE CANCELLATION IN A SPREAD SPECTRUM COMMUNICATION SYSTEM 1 2011
9270327 Interference cancellation in a spread spectrum communication system 0 2015
 
NEC CORPORATION (1)
* 6415161 Mobile communication system with transmitting systems with different outputting power 12 1999
 
GOOGLE TECHNOLOGY HOLDINGS LLC (1)
* 6173005 Apparatus and method for transmitting signals in a communication system 126 1997
 
APPLE INC. (1)
7280466 Transmitter for a wireless communications system using multiple codes and multiple antennas 6 2002
 
UNWIRED PLANET, LLC (1)
* 6925127 Method and apparatus for subtracting multiple rays of multiple interfering received signals 6 2000
 
Linex Technologies, Inc. (2)
RE42219 Multiple-input multiple-output (MIMO) spread spectrum system and method 3 2008
RE43812 Multiple-input multiple-output (MIMO) spread-spectrum system and method 3 2011
 
Uniden Corporation (1)
* 5859875 Transmitter, receiver, communication system, and communication method employing spread spectrum communication technique 65 1997
 
NAVINI NETWORKS, INC. UNDER THE NAME OF CISCO-NAVINI NETWORKS, INC. (2)
* 8412125 Wireless communication system with transmit diversity designs 0 2007
* 2008/0090,529 Wireless communication system with transmit diversity designs 1 2007
 
GOOGLE TECHNOLOGY HOLDINGS LLC (3)
* 6570938 Method and apparatus for recovering data symbols from a signal received by a radio communication device 1 1996
* 6141542 Method and apparatus for controlling transmit diversity in a communication system 78 1997
* 6317411 Method and system for transmitting and receiving signals transmitted from an antenna array with transmit diversity techniques 136 1999
 
LENOVO INNOVATIONS LIMITED (HONG KONG) (3)
* 6404757 Reception method and apparatus in CDMA system 5 1998
7145941 Reduction in power consumption in CDMA receiver terminal when signal is received in transmission diversity mode 0 2001
* 2002/0071,410 Reduction in power consumption in CDMA receiver terminal when signal is received in transmission diversity mode 0 2001
 
QUALCOMM INCORPORATED (5)
* 6134215 Using orthogonal waveforms to enable multiple transmitters to share a single CDM channel 39 1996
* 6795508 Method and apparatus for obtaining transmit diversity using switched antennas 8 1998
7881360 Method and system for increased bandwidth efficiency in multiple input—multiple output channels 1 2004
* 2004/0179,626 Method and system for increased bandwidth efficiency in multiple input -multiple output channels 7 2004
* 7031398 Method and apparatus for obtaining transmit diversity using switched antennas 1 2004
 
PENDRAGON WIRELESS LLC (1)
6937645 Communication system and a receiver for use in the system 1 2001
 
LUCENT TECHNOLOGIES INC. (3)
* 6370129 High-speed data services using multiple transmit antennas 57 2000
6870825 Pilot signal transmission in a multi-transmit antenna wireless communication system 8 2000
* 7400614 Methods and apparatus for downlink diversity in CDMA using Walsh codes 4 2002
 
CISCO TECHNOLOGY, INC. (1)
* 7577188 Physical layer and MAC enhancements using complex sequences on a wireless channel 5 2001
 
YOZAN INC. (1)
* 2003/0133,493 Path search method and path search device, and mobile terminal 7 2002
 
ALCATEL LUCENT (2)
* 8155170 Method and apparatus for achieving channel variability in spread spectrum communication systems 0 2007
* 2008/0260,007 Method and Apparatus for Achieving Channel Variability in Spread Spectrum Communication Systems 1 2007
 
MASCOTECH, INC. (1)
* 6038263 Method and apparatus for transmitting signals in a communication system 132 1997
 
ERICSSON INC. (1)
* 6215762 Communication system and method with orthogonal block encoding 35 1997
 
FUJITSU LIMITED (1)
* 2009/0303,868 Control Channel Transmission Method And Radio Communication Apparatus 9 2009
 
INVT SPE LLC (1)
7145886 Communication terminal, base station system, and method of controlling transmission power 4 2000
 
INTEL CORPORATION (26)
* 7079523 Maintenance link using active/standby request channels 44 2001
8175120 Minimal maintenance link to support synchronization 3 2001
* 7961589 System and related methods for introducing sub-carrier diversity in a wideband communication system 0 2001
* 2003/0064,690 System and related methods for introducing sub-carrier diversity in a wideband communication system 10 2001
* 2003/0082,924 Method of making a semiconductor device by converting a hydrophobic surface of a dielectric layer to a hydrophilic surface 0 2001
7936728 System and method for maintaining timing of synchronization messages over a reverse link of a CDMA wireless communication system 0 2001
8155096 Antenna control system and method 3 2001
7551663 Use of correlation combination to achieve channel detection 4 2002
7773566 System and method for maintaining timing of synchronization messages over a reverse link of a CDMA wireless communication system 0 2004
8134980 Transmittal of heartbeat signal at a lower level than heartbeat request 6 2007
9042400 Multi-detection of heartbeat to reduce error probability 0 2008
8274954 Alternate channel for carrying selected message types 0 2009
8139546 System and method for maintaining wireless channels over a reverse link of a CDMA wireless communication system 0 2010
8638877 Methods, apparatuses and systems for selective transmission of traffic data using orthogonal sequences 0 2011
8509268 Minimal maintenance link to support sychronization 1 2011
8792458 System and method for maintaining wireless channels over a reverse link of a CDMA wireless communication system 0 2012
8437330 Antenna control system and method 1 2012
8908654 Dynamic bandwidth allocation for multiple access communications using buffer urgency factor 0 2012
8687606 Alternate channel for carrying selected message types 1 2012
9014118 Signaling for wireless communications 2 2013
9225395 Antenna control system and method 0 2013
9408216 Dynamic bandwidth allocation to transmit a wireless protocol across a code division multiple access (CDMA) radio link 0 2013
9301274 Minimal maintenance link to support synchronization 0 2013
9247510 Use of correlation combination to achieve channel detection 0 2013
9525923 Multi-detection of heartbeat to reduce error probability 0 2014
9307532 Signaling for wireless communications 1 2015
 
RPX CORPORATION (1)
* 6256290 Multi-carrier CDMA transmission system with frequency and transmit diversity 30 1998
 
STMICROELECTRONICS S.R.L. (3)
* 7460581 Method for transmitting signals using antenna diversity, for instance in mobile communication systems, transmitter, receiver and computer program product therefor 3 2004
* 2005/0271,121 Method for transmitting signals using antenna diversity, for instance in mobile communication systems, transmitter, receiver and computer program product therefor 0 2004
7586979 Method for transmitting signals using antenna diversity, for instance in mobile communication systems, transmitter, receiver and computer program product therefor 1 2008
 
ALCATEL (2)
6636495 Diversity transmission in a mobile radio system 78 1999
6469981 Point-to-multipoint network 5 1999
 
MITSUBISHI DENKI KABUSHIKI KAISHA (1)
* 8027649 Radio communication system, a transmitter and a receiver 0 2007
 
MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD. (3)
* 6226508 Transmission diversity apparatus 22 1998
6891817 Transmission apparatus and base station apparatus using the same 10 2002
* 2004/0161,058 Receiving apparatus and receiving method 3 2003
 
AT&T CORP. (1)
* 6661856 Decoding for generalized orthogonal design for space-time codes for wireless communication 23 2000
* Cited By Examiner