Patent | Date |
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Transfer Device App 20120284179 - Yamamoto; Masaaki ;   et al. | 2012-11-08 |
Transfer Device App 20120284368 - Yamamoto; Masaaki ;   et al. | 2012-11-08 |
Method and system for mobile communications Grant 8,185,158 - Tamura , et al. May 22, 2 | 2012-05-22 |
Method and system for mobile communications Grant 7,577,435 - Tamura , et al. August 18, 2 | 2009-08-18 |
Method And System For Mobile Communications App 20090197646 - Tamura; Motoshi ;   et al. | 2009-08-06 |
Method And System For Mobile Communications App 20090190761 - Tamura; Motoshi ;   et al. | 2009-07-30 |
Method and System for Mobile Communications App 20090191924 - Tamura; Motoshi ;   et al. | 2009-07-30 |
Method And System For Mobile Communications App 20090154702 - Tamura; Motoshi ;   et al. | 2009-06-18 |
Method And System For Mobile Communications App 20090149181 - Tamura; Motoshi ;   et al. | 2009-06-11 |
Method And System For Mobile Communications App 20090149182 - Tamura; Motoshi ;   et al. | 2009-06-11 |
Method And System For Mobile Communications App 20090141687 - Tamura; Motoshi ;   et al. | 2009-06-04 |
Method of assignment and transmission of spread signals in direct sequence spread spectrum CDMA mobile communication system, mobile communication system, and transmitter, receiver and transmitter/receiver of mobile communication system Grant 7,519,102 - Futakata , et al. April 14, 2 | 2009-04-14 |
Method and device for interleaving and method and device for de-interleaving Grant 7,469,365 - Kawahara , et al. December 23, 2 | 2008-12-23 |
Frame synchronization circuit Grant 7,403,489 - Ohtani , et al. July 22, 2 | 2008-07-22 |
Method and system for mobile communications Grant 7,383,045 - Tamura , et al. June 3, 2 | 2008-06-03 |
Method and system for mobile communications App 20080108356 - Tamura; Motoshi ;   et al. | 2008-05-08 |
Method and system for mobile communications App 20070298804 - Tamura; Motoshi ;   et al. | 2007-12-27 |
Traffic control method for mobile data communication, mobile station device and base station device Grant 7,304,970 - Ishikawa December 4, 2 | 2007-12-04 |
Frame synchronization circuit App 20070259666 - Ohtani; Tomoyuki ;   et al. | 2007-11-08 |
Method and system for mobile communications Grant 7,236,787 - Tamura , et al. June 26, 2 | 2007-06-26 |
Method and device for interleaving and method and device for de-interleaving Grant 7,191,369 - Kawahara , et al. March 13, 2 | 2007-03-13 |
Method and device for interleaving and method and device for de-interleaving App 20070038903 - Kawahara; Toshiro ;   et al. | 2007-02-15 |
Method and device for interleaving and method and device for de-interleaving App 20070038902 - Kawahara; Toshiro ;   et al. | 2007-02-15 |
Method and system for mobile communications App 20060264207 - Tamura; Motoshi ;   et al. | 2006-11-23 |
Method and system for mobile communications App 20060251038 - Tamura; Motoshi ;   et al. | 2006-11-09 |
Method and system for mobile communications App 20060199578 - Tamura; Motoshi ;   et al. | 2006-09-07 |
Method and system for mobile communications App 20060194583 - Tamura; Motoshi ;   et al. | 2006-08-31 |
Method and system for mobile communications App 20060178167 - Tamura; Motoshi ;   et al. | 2006-08-10 |
Frame synchronization circuit App 20060171328 - Ohtani; Tomoyuki ;   et al. | 2006-08-03 |
Frame synchronization circuit Grant 6,977,903 - Ohtani , et al. December 20, 2 | 2005-12-20 |
Signal transmission method and base station in mobile communication Grant 6,963,551 - Uebayashi , et al. November 8, 2 | 2005-11-08 |
Radio line allocation judging method in mobile communication system and radio line Grant 6,912,394 - Obata , et al. June 28, 2 | 2005-06-28 |
Method and device for interleaving and method and device for deinterleaving Grant 6,871,302 - Kawahara , et al. March 22, 2 | 2005-03-22 |
Speech decoder and speech decoding method Grant 6,847,928 - Naka January 25, 2 | 2005-01-25 |
DS-CDMA transmission method Grant 6,842,442 - Okawa , et al. January 11, 2 | 2005-01-11 |
Method and device for interleaving and method and device for de-interleaving App 20050005223 - Kawahara, Toshiro ;   et al. | 2005-01-06 |
Mobile paging telephone with an automatic call back function Grant 6,804,507 - Ishikawa , et al. October 12, 2 | 2004-10-12 |
Call acceptance control method for CDMA mobile radio communication system and mobile station device Grant 6,801,515 - Ishikawa , et al. October 5, 2 | 2004-10-05 |
Method of transmitting variable-length frame, transmitter, and receiver Grant 6,744,784 - Naka , et al. June 1, 2 | 2004-06-01 |
Interference avoidance radio communications system Grant 6,741,837 - Nakano , et al. May 25, 2 | 2004-05-25 |
Simultaneous plural code series generator and CDMA radio receiver using same Grant 6,738,411 - Ogawa , et al. May 18, 2 | 2004-05-18 |
Simultaneous plural code series generator and CDMA radio receiver using same Grant 6,728,305 - Ogawa , et al. April 27, 2 | 2004-04-27 |
Sequential decoder, and receiver using sequential decoder Grant 6,728,322 - Asai , et al. April 27, 2 | 2004-04-27 |
Variable rate transmission and reception methods, and variable rate transmission and reception devices Grant 6,724,806 - Okumura , et al. April 20, 2 | 2004-04-20 |
Modified concealing device and method for a speech decoder Grant 6,714,908 - Naka March 30, 2 | 2004-03-30 |
Receiving apparatus, receiving method, transmission system and transmission method Grant 6,694,480 - Nakayama , et al. February 17, 2 | 2004-02-17 |
Short cell multiplexed ATM transmission system and transmission method Grant 6,671,289 - Tamura , et al. December 30, 2 | 2003-12-30 |
Transmission system between base station and switching center of mobile communications using fixed length cell Grant 6,639,903 - Nakano , et al. October 28, 2 | 2003-10-28 |
Interleaving method, interleaving apparatus, and recording medium in which interleave pattern generating program is recorded Grant 6,631,491 - Shibutani , et al. October 7, 2 | 2003-10-07 |
Adaptive array antenna Grant 6,624,784 - Yamaguchi September 23, 2 | 2003-09-23 |
Data transmitting method Grant 6,574,226 - Nakano , et al. June 3, 2 | 2003-06-03 |
Multiplex transmission system and bandwidth control method Grant 6,560,231 - Kawakami , et al. May 6, 2 | 2003-05-06 |
Mobile communications system Grant 6,512,924 - Sawada , et al. January 28, 2 | 2003-01-28 |
Radio paging signal coding control scheme using variable number of logical channels according to paging signal traffic Grant 6,512,748 - Mizuki , et al. January 28, 2 | 2003-01-28 |
Rake receiver in direct spreading CDMA transmission Grant 6,507,605 - Fukumoto , et al. January 14, 2 | 2003-01-14 |
Simultaneous plural code series generator and CDMA radio receiver using same App 20020181558 - Ogawa, Shinsuke ;   et al. | 2002-12-05 |
Multi-station transmission method and receiver for inverse transforming two pseudo-orthogonal transmission sequences used for metric calculation and base station selection based thereon Grant 6,483,866 - Suzuki November 19, 2 | 2002-11-19 |
High sensitivity radio receiver Grant 6,480,706 - Mimura , et al. November 12, 2 | 2002-11-12 |
Mobile communication system and distributed broadcast information control method in mobile communication system App 20020164982 - Ikeda, Takehiro ;   et al. | 2002-11-07 |
Mobile paging telephone with an automatic call back function Grant 6,466,782 - Ishikawa , et al. October 15, 2 | 2002-10-15 |
Communication channel selecting method and base station device Grant 6,453,166 - Ishikawa , et al. September 17, 2 | 2002-09-17 |
Time-division multiple-access communication system Grant 6,442,146 - Onodera , et al. August 27, 2 | 2002-08-27 |
Communication system using relayed radio channels Grant 6,424,818 - Hirono July 23, 2 | 2002-07-23 |
Transmission system between base station and switching center of mobile communications using fixed length cell App 20020093939 - Nakano, Masatomo ;   et al. | 2002-07-18 |
Power controller for mobile communication system wherein a signal to interference threshold is dynamically moved based on an error rate measurement Grant 6,341,224 - Dohi , et al. January 22, 2 | 2002-01-22 |
Feedforward amplifier Grant 6,320,464 - Suzuki , et al. November 20, 2 | 2001-11-20 |
Mobile communication system for supporting multiple simultaneous communications on single mobile terminal Grant 6,314,300 - Nakashima , et al. November 6, 2 | 2001-11-06 |
Packet communications network Grant 6,310,859 - Morita , et al. October 30, 2 | 2001-10-30 |
Signal transmission method, mobile station device, and base station device for CDMA mobile communication system Grant 6,310,868 - Uebayashi , et al. October 30, 2 | 2001-10-30 |
Handover type judgement scheme for CDMA mobile communication system Grant 6,269,087 - Nakamura , et al. July 31, 2 | 2001-07-31 |
Amplifier for radio transmission Grant 6,265,935 - Kaneda , et al. July 24, 2 | 2001-07-24 |
Method for controlling activation of mobile station, and mobile station using the method Grant 6,263,214 - Yazaki , et al. July 17, 2 | 2001-07-17 |
Method of handover control in mobile radio communication realizing reduced control load Grant 6,216,003 - Hamajima , et al. April 10, 2 | 2001-04-10 |
Paging scheme for mobile communication system using increased paging channel data transmission rate Grant 6,208,624 - Tanno , et al. March 27, 2 | 2001-03-27 |
Feedforward amplifier Grant 6,208,204 - Suzuki , et al. March 27, 2 | 2001-03-27 |
Mobile station position estimation scheme for cellular mobile communication system Grant 6,181,944 - Uebayashi , et al. January 30, 2 | 2001-01-30 |
CDMA demodulating apparatus Grant 6,137,788 - Sawahashi , et al. October 24, 2 | 2000-10-24 |
Scheme for intermittent reception of paging signals in mobile communication system Grant 6,138,001 - Nakamura , et al. October 24, 2 | 2000-10-24 |
Error control method and error control device for digital communication Grant 6,134,694 - Uebayashi , et al. October 17, 2 | 2000-10-17 |
Spread spectrum transmitter and receiver employing composite spreading codes Grant 6,128,332 - Fukawa , et al. October 3, 2 | 2000-10-03 |
DS-CDMA transmission method Grant 6,097,711 - Okawa , et al. August 1, 2 | 2000-08-01 |
Communicating encrypted signals in which random bits and random bit position data are inserted Grant 6,084,966 - Maebara , et al. July 4, 2 | 2000-07-04 |
Updating internal states of a speech decoder after errors have occurred Grant 6,085,158 - Naka , et al. July 4, 2 | 2000-07-04 |
CDMA communication method and group spreading modulator Grant 6,084,884 - Adachi July 4, 2 | 2000-07-04 |
Diversity receiver and its control method Grant 6,069,912 - Sawahashi , et al. May 30, 2 | 2000-05-30 |
Mobile communications system and method with message storing function Grant 6,064,876 - Ishida , et al. May 16, 2 | 2000-05-16 |
Micro-frame multiplex transmitter Grant 6,061,354 - Morikawa , et al. May 9, 2 | 2000-05-09 |
Echo canceler and method for learning for the same Grant 6,061,444 - Kawahara , et al. May 9, 2 | 2000-05-09 |
Rake receiver Grant 6,026,115 - Higashi , et al. February 15, 2 | 2000-02-15 |
Communication system and transmission station Grant 6,021,516 - Okajima , et al. February 1, 2 | 2000-02-01 |
CDMA mobile communication scheme with effective use of sector configuration Grant 6,011,787 - Nakano , et al. January 4, 2 | 2000-01-04 |
Mobile wireless data communications system Grant 6,009,088 - Taguchi , et al. December 28, 1 | 1999-12-28 |
Packet transfer scheme and mobile communication system Grant 5,963,550 - Hirata , et al. October 5, 1 | 1999-10-05 |
Booster system Grant 5,963,847 - Ito , et al. October 5, 1 | 1999-10-05 |
Radio communication system Grant 5,959,983 - Saito , et al. September 28, 1 | 1999-09-28 |
Data receiving apparatus Grant 5,960,336 - Ikawa , et al. September 28, 1 | 1999-09-28 |
Cell selection scheme in CDMA mobile communication system using spread codes and spread code phases Grant 5,953,326 - Nakamura , et al. September 14, 1 | 1999-09-14 |
CDMA mobile communication method, system and mobile station apparatus Grant 5,953,324 - Adachi September 14, 1 | 1999-09-14 |
Multicellular transmission method and apparatus Grant 5,940,385 - Mita , et al. August 17, 1 | 1999-08-17 |
Acquisition method and system of spreading code Grant 5,940,433 - Sawahashi , et al. August 17, 1 | 1999-08-17 |
Mobile communication system with reliable handover scheme Grant 5,920,817 - Umeda , et al. July 6, 1 | 1999-07-06 |
Antenna device having two resonance frequencies Grant 5,917,450 - Tsunekawa , et al. June 29, 1 | 1999-06-29 |
Apparatus and method for establishing acquisition of spreading code in CDMA transmission system Grant 5,914,943 - Higuchi , et al. June 22, 1 | 1999-06-22 |
Method for multicarrier signal detection and parameter estimation in mobile radio communication channels Grant 5,912,931 - Matsumoto , et al. June 15, 1 | 1999-06-15 |
Acquisition scheme and receiver for an asynchronous DS-CDMA cellular communication system Grant 5,910,948 - Shou , et al. June 8, 1 | 1999-06-08 |
Digital signal detecting method and detector Grant 5,907,585 - Suzuki , et al. May 25, 1 | 1999-05-25 |
Method for searching a control channel in a mobile station Grant 5,903,838 - Yazaki , et al. May 11, 1 | 1999-05-11 |
Coherent tracking apparatus and method for CDMA receiver Grant 5,898,665 - Sawahashi , et al. April 27, 1 | 1999-04-27 |
Variable rate transmission method, transmitter and receiver using the same Grant 5,896,374 - Okumura , et al. April 20, 1 | 1999-04-20 |
Pseudo fixed data transmission device and method Grant 5,886,652 - Adachi , et al. March 23, 1 | 1999-03-23 |
Mobile communication systems sharing a control channel Grant 5,884,165 - Uchida , et al. March 16, 1 | 1999-03-16 |
Method for setting up perch channels in mobile communication by cellular system Grant 5,873,047 - Nakano , et al. February 16, 1 | 1999-02-16 |
Transmission power control apparatus and method in a mobile communication system Grant 5,873,028 - Nakano , et al. February 16, 1 | 1999-02-16 |
Broadband antenna using a semicircular radiator Grant 5,872,546 - Ihara , et al. February 16, 1 | 1999-02-16 |
Private mobile communication system easily connecting portable or mobile radio telephone equipment to public network Grant 5,870,677 - Takahashi , et al. February 9, 1 | 1999-02-09 |
Echo canceler and echo path estimating method Grant 5,859,907 - Kawahara , et al. January 12, 1 | 1999-01-12 |
Transmitter receiver for mobile communication system Grant 5,850,393 - Adachi December 15, 1 | 1998-12-15 |
Method and apparatus for call admission control in CDMA mobile communication system Grant 5,838,671 - Ishikawa , et al. November 17, 1 | 1998-11-17 |
Mobile satellite communication system Grant 5,835,846 - Furukawa , et al. November 10, 1 | 1998-11-10 |
Selective radio paging system and pager Grant 5,835,023 - Ito , et al. November 10, 1 | 1998-11-10 |
Base station selection scheme for CDMA cellular system using perch channel and received SIR Grant 5,832,368 - Nakano , et al. November 3, 1 | 1998-11-03 |
High-speed radio communication system Grant 5,822,701 - Tomisato , et al. October 13, 1 | 1998-10-13 |
Video coding decoding apparatus Grant 5,812,198 - Saigusa , et al. September 22, 1 | 1998-09-22 |
Mobile communications network and mobile communication method Grant 5,805,078 - Sugiyama , et al. September 8, 1 | 1998-09-08 |
Time diversity communications system Grant 5,794,124 - Ito , et al. August 11, 1 | 1998-08-11 |
Matched filter circuit Grant 5,790,590 - Shou , et al. August 4, 1 | 1998-08-04 |
Signal multiplexer and multiplexing method Grant 5,790,555 - Narahashi , et al. August 4, 1 | 1998-08-04 |
Spread spectrum transmitter and receiver employing composite spreading codes Grant 5,790,588 - Fukawa , et al. August 4, 1 | 1998-08-04 |
Radio paging system for selective transmission without a separate address for each paging area Grant 5,777,560 - Sakai , et al. July 7, 1 | 1998-07-07 |
Frequency error correction device of a spread-spectrum communication receiver Grant 5,774,494 - Sawahashi , et al. June 30, 1 | 1998-06-30 |
Method for searching a control channel in a mobile station Grant 5,774,807 - Yazaki , et al. June 30, 1 | 1998-06-30 |
Microstrip antenna device Grant 5,767,810 - Hagiwara , et al. June 16, 1 | 1998-06-16 |
Spread spectrum receiver Grant 5,757,844 - Fukawa , et al. May 26, 1 | 1998-05-26 |
Code division multiple access transmitter and receiver Grant 5,748,623 - Sawahashi , et al. May 5, 1 | 1998-05-05 |
Automatic gain control apparatus, communication system, and automatic gain control method Grant 5,745,531 - Sawahashi , et al. April 28, 1 | 1998-04-28 |
Filter circuit for communication Grant 5,740,096 - Shou , et al. April 14, 1 | 1998-04-14 |
Method of electro-optical measurement for vector components of electric fields and an apparatus thereof Grant 5,737,082 - Itatani , et al. April 7, 1 | 1998-04-07 |
Radio paging system Grant 5,736,934 - Nozawa , et al. April 7, 1 | 1998-04-07 |
Simulcast phase synchronization system Grant 5,734,985 - Ito , et al. March 31, 1 | 1998-03-31 |
CDMA communications method and system Grant 5,734,648 - Adachi , et al. March 31, 1 | 1998-03-31 |
Minimum/maximum data detector Grant 5,726,923 - Okumura , et al. March 10, 1 | 1998-03-10 |
Radio frequency circuit for portable radion communication device Grant 5,715,525 - Tarusawa , et al. February 3, 1 | 1998-02-03 |
Communication system capable of performing FDMA transmission Grant 5,715,235 - Sawahashi , et al. February 3, 1 | 1998-02-03 |
Adaptive equalizer Grant 5,710,792 - Fukawa , et al. January 20, 1 | 1998-01-20 |
Connection control method for personal communications Grant 5,703,941 - Nakajima , et al. December 30, 1 | 1997-12-30 |
CDMA demodulator and demodulation method Grant 5,694,388 - Sawahashi , et al. December 2, 1 | 1997-12-02 |
Coherent detector and a coherent detection method for a digital communication receiver Grant 5,692,015 - Higashi , et al. November 25, 1 | 1997-11-25 |
Repeater using optical cables for radio paging system Grant 5,689,355 - Okubo , et al. November 18, 1 | 1997-11-18 |
Random access system of a mobile communication system Grant 5,689,503 - Wada , et al. November 18, 1 | 1997-11-18 |
Multibeam antenna devices Grant 5,686,926 - Kijima , et al. November 11, 1 | 1997-11-11 |
Method and system for CDMA mobile communication Grant 5,673,260 - Umeda , et al. September 30, 1 | 1997-09-30 |
Linear predictive differential detection method for DPSK waves Grant 5,654,667 - Adachi August 5, 1 | 1997-08-05 |
Receiver and repeater for spread spectrum communications Grant 5,652,765 - Adachi , et al. July 29, 1 | 1997-07-29 |
Mobile communication method for controlling origination or termination of a call in a desired network Grant 5,649,301 - Yabusaki , et al. July 15, 1 | 1997-07-15 |
Correlation detector and communication apparatus Grant 5,638,362 - Dohi , et al. June 10, 1 | 1997-06-10 |
Data transmission scheme with automatic repeat request Grant 5,629,948 - Hagiwara , et al. May 13, 1 | 1997-05-13 |
Maximum likelihood decoding coherent detection method Grant 5,619,167 - Adachi April 8, 1 | 1997-04-08 |
Antenna equipment Grant 5,617,105 - Tsunekawa , et al. April 1, 1 | 1997-04-01 |
Mobile radio communications system Grant 5,615,210 - Kaiyama , et al. March 25, 1 | 1997-03-25 |
Transmission power control method of a spread-spectrum communication system, and a spread-spectrum communication system employing the control method Grant 5,604,766 - Dohi , et al. February 18, 1 | 1997-02-18 |
Adaptive demodulating method for generating replica and demodulator thereof Grant 5,602,507 - Suzuki February 11, 1 | 1997-02-11 |
Method for monitoring the state of interference by a base station of a mobile radio communication system Grant 5,603,093 - Yoshimi , et al. February 11, 1 | 1997-02-11 |
Transmission power control method and a transmission power control apparatus Grant 5,590,409 - Sawahashi , et al. December 31, 1 | 1996-12-31 |
Up-link channel assignment scheme for cellular mobile communications systems employing multi-beam antennas with beam selection Grant 5,590,399 - Matsumoto , et al. December 31, 1 | 1996-12-31 |
CDMA communications method and system Grant 5,586,113 - Adachi , et al. December 17, 1 | 1996-12-17 |
Base station device and mobile station device in mobile communication system utilizing the site diversity effect in soft handover state Grant 5,574,983 - Douzono , et al. November 12, 1 | 1996-11-12 |
Connection control method for personal communications Grant 5,572,584 - Yabusaki , et al. November 5, 1 | 1996-11-05 |
Code division multiple access mobile communication system Grant 5,568,472 - Umeda , et al. October 22, 1 | 1996-10-22 |
Transmission power control method and a communication system using the same Grant 5,566,165 - Sawahashi , et al. October 15, 1 | 1996-10-15 |
Speech signal transmission method providing for control Grant 5,553,190 - Ohya , et al. September 3, 1 | 1996-09-03 |
Interference signal cancelling method, receiver and communication system using the same Grant 5,537,443 - Yoshino , et al. July 16, 1 | 1996-07-16 |
Transmission de-correlator for eliminating interference in a CDMA communication system Grant 5,500,856 - Nagase , et al. March 19, 1 | 1996-03-19 |
Hand-off method and mobile station for spread spectrum mobile communication Grant 5,487,083 - Nakajima , et al. January 23, 1 | 1996-01-23 |
Mobile station and cell selecting method for code division multiplex access mobile communication Grant 5,420,850 - Umeda , et al. May 30, 1 | 1995-05-30 |
Portable radio unit having strip antenna with parallel twin-lead feeder Grant 5,412,392 - Tsunekawa May 2, 1 | 1995-05-02 |
Control channel selecting method for mobile stations Grant 5,408,684 - Yunoki , et al. April 18, 1 | 1995-04-18 |
Method of handover and route diversity in mobile radio communication Grant 5,408,514 - Sakamoto , et al. April 18, 1 | 1995-04-18 |
Location registration system in mobile communication Grant 5,361,396 - Onoe , et al. November 1, 1 | 1994-11-01 |
Quadrature amplitude modulator with distortion compensation Grant 5,293,406 - Suzuki March 8, 1 | 1994-03-08 |