NIPPON TELEGRAPH AND TELEPHONE CORPORATION

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology MATTERS Rank in Class
 
 
G02B OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS 286 44
 
 
H04L TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION 210 107
 
 
H04B TRANSMISSION 169 69
 
 
G06F ELECTRIC DIGITAL DATA PROCESSING 138 287
 
 
H04N PICTORIAL COMMUNICATION, e.g. TELEVISION 132 119
 
 
H04J MULTIPLEX COMMUNICATION 119 38
 
 
H01L SEMICONDUCTOR DEVICES; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR 86 255
 
 
G10L SPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION 68 36
 
 
G06K RECOGNITION OF DATA; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS 51 143
 
 
H01S DEVICES USING STIMULATED EMISSION 49 52
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Top Patents (by citation)

Recent Publications

Publication # Title Filing Date Pub Date Intl Class
2017/0135,889 NURSE CALL SYSTEM, INTERFACE UNIT, AND NURSE CALL CONNECTION METHOD Oct 22, 05 May 18, 17 [H04Q, A61G]
2017/0139,148 METHOD OF MANUFACTURING OPTICAL CONNECTOR, OPTICAL CONNECTOR, AND OPTICAL FIBER INSERTION DEVICE Mar 17, 15 May 18, 17 [G02B]
2017/0123,162 OPTICAL FIBER CONNECTOR Mar 31, 15 May 04, 17 [G02B]
2017/0126,714 ATTACK DETECTION DEVICE, ATTACK DETECTION METHOD, AND ATTACK DETECTION PROGRAM Jul 02, 15 May 04, 17 [H04L]
2017/0126,715 DETECTION DEVICE, DETECTION METHOD, AND DETECTION PROGRAM Jun 24, 15 May 04, 17 [H04L, G06Q]
2017/0126,724 LOG ANALYZING DEVICE, ATTACK DETECTING DEVICE, ATTACK DETECTION METHOD, AND PROGRAM Jun 01, 15 May 04, 17 [H04L]
2017/0127,079 Video Encoding Device and Video Encoding Method Oct 25, 16 May 04, 17 [H04N]
2017/0115,451 OPTICAL FIBER CABLE Apr 28, 15 Apr 27, 17 [G02B]
2017/0115,461 OPTICAL FIBER RIBBON AND OPTICAL FIBER CABLE HOUSING OPTICAL FIBER RIBBON Jan 09, 17 Apr 27, 17 [G02B]
2017/0117,961 LIGHT MODULATION DEVICE AND LIGHT MODULATION METHOD Apr 10, 15 Apr 27, 17 [H04L, H04B]

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
9655042 Optical wireless access system Sep 25, 13 May 16, 17 [H04L, H04W, H04B]
9645321 Optical signal processing device Aug 30, 13 May 09, 17 [G02B]
9638544 Sensor terminal and sensor network system Feb 08, 13 May 02, 17 [G01D, H04Q, G08C, G08B]
9640190 Decoding method, decoding apparatus, program, and recording medium therefor Aug 28, 13 May 02, 17 [G10L]
9621299 Coherent communication system, communication method, and transmission method Jan 15, 14 Apr 11, 17 [H04J, H04B]
9614621 Signal generating circuit, optical signal transmitting apparatus, signal receiving circuit, method for establishing optical signal synchronization, and optical signal synchronization system Nov 21, 14 Apr 04, 17 [H04L, H04B]
9604742 Method for packing cable Apr 28, 14 Mar 28, 17 [B65H, B65B, B65D]
9607158 Proxy computing system, computing apparatus, capability providing apparatus, proxy computing method, capability providing method, program, and recording medium Oct 25, 11 Mar 28, 17 [H04L, G06F]
9609318 Video encoding method, video decoding method, video encoding apparatus, video decoding apparatus, and programs thereof Aug 10, 11 Mar 28, 17 [H04N]
9600665 Monitoring device and monitoring method Dec 20, 13 Mar 21, 17 [G06F]

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
9247324 Wavelength selection switch system and method for controlling wavelength selection switch Withdrawn Feb 05, 13 Jan 26, 16 [G02B, H04J, H04Q]
2014/0363,337 CHIP FOR OPTICAL ANALYSIS ABAN Aug 25, 14 Dec 11, 14 [G01N]
2014/0247,865 VIDEO ENCODING METHOD AND APPARATUS, VIDEO DECODING METHOD AND APPARATUS, AND PROGRAM THEREFOR ABAN Oct 18, 12 Sep 04, 14 [H04N]
2014/0133,546 VIDEO ENCODING DEVICE, VIDEO DECODING DEVICE, VIDEO ENCODING METHOD, VIDEO DECODING METHOD, VIDEO ENCODING PROGRAM, AND VIDEO DECODING PROGRAM ABAN Jun 12, 12 May 15, 14 [H04N]
2014/0119,453 VIDEO ENCODING DEVICE, VIDEO DECODING DEVICE, VIDEO ENCODING METHOD, VIDEO DECODING METHOD, VIDEO ENCODING PROGRAM, AND VIDEO DECODING PROGRAM ABAN Jun 12, 12 May 01, 14 [H04N]
2014/0010,229 DATA COMMUNICATION SYSTEM, DATA COMMUNICATION TERMINAL, DATA COMMUNICATIN METHOD, AND COMPUTER PROGRAM ABAN Dec 27, 11 Jan 09, 14 [H04L]
2013/0301,721 MULTIVIEW IMAGE ENCODING METHOD, MULTIVIEW IMAGE DECODING METHOD, MULTIVIEW IMAGE ENCODING DEVICE, MULTIVIEW IMAGE DECODING DEVICE, AND PROGRAMS OF SAME ABAN Dec 05, 11 Nov 14, 13 [H04N]
2013/0218,764 ELECTRONIC SETTLEMENT METHOD, SYSTEM, SERVER, AND PROGRAM THEREOF ABAN Mar 18, 13 Aug 22, 13 [G06Q]
2013/0136,187 VIDEO ENCODING METHOD, VIDEO DECODING METHOD, VIDEO ENCODING APPARATUS, VIDEO DECODING APPARATUS, AND PROGRAM THEREOF ABAN Aug 05, 11 May 30, 13 [H04N]
2013/0114,733 ENCODING METHOD, DECODING METHOD, DEVICE, PROGRAM, AND RECORDING MEDIUM ABAN Jul 04, 11 May 09, 13 [H04N]
2013/0101,028 ENCODING METHOD, DECODING METHOD, DEVICE, PROGRAM, AND RECORDING MEDIUM ABAN Jul 04, 11 Apr 25, 13 [H04N]
2013/0058,584 IMAGE ENCODING AND DECODING FOR MULTI-VIEWPOINT IMAGES ABAN Sep 12, 12 Mar 07, 13 [G06K]
2012/0320,985 MOTION VECTOR PREDICTIVE ENCODING METHOD, MOTION VECTOR PREDICTIVE DECODING METHOD, MOVING PICTURE ENCODING APPARATUS, MOVING PICTURE DECODING APPARATUS, AND PROGRAMS THEREOF ABAN Feb 04, 11 Dec 20, 12 [H04N]
2012/0320,986 MOTION VECTOR ESTIMATION METHOD, MULTIVIEW VIDEO ENCODING METHOD, MULTIVIEW VIDEO DECODING METHOD, MOTION VECTOR ESTIMATION APPARATUS, MULTIVIEW VIDEO ENCODING APPARATUS, MULTIVIEW VIDEO DECODING APPARATUS, MOTION VECTOR ESTIMATION PROGRAM, MULTIVIEW VIDEO ENCODING PROGRAM, AND MULTIVIEW VIDEO DECODING PROGRAM ABAN Feb 18, 11 Dec 20, 12 [H04N]
2012/0314,776 MULTIVIEW VIDEO ENCODING METHOD, MULTIVIEW VIDEO DECODING METHOD, MULTIVIEW VIDEO ENCODING APPARATUS, MULTIVIEW VIDEO DECODING APPARATUS, AND PROGRAM ABAN Feb 21, 11 Dec 13, 12 [H04N]
2012/0294,372 MOTION VECTOR PREDICTIVE ENCODING METHOD, MOTION VECTOR PREDICTIVE DECODING METHOD, MOVING PICTURE ENCODING APPARATUS, MOVING PICTURE DECODING APPARATUS, AND PROGRAMS THEREOF ABAN Feb 08, 11 Nov 22, 12 [H04N]
2012/0288,242 OPTICAL MODULE ABAN May 09, 12 Nov 15, 12 [G02B]
8278781 Discharger and discharger control method Expired May 25, 07 Oct 02, 12 [H01H, H02J]
8238325 Packet communication network and packet communication method Expired Oct 25, 05 Aug 07, 12 [H04L]
8239145 Method, device and program for presenting inner force sense and program Expired Oct 31, 05 Aug 07, 12 [G01L]

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