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 287 40
 
 
H04L TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION 227 108
 
 
H04B TRANSMISSION 177 70
 
 
G06F ELECTRIC DIGITAL DATA PROCESSING 149 294
 
 
H04N PICTORIAL COMMUNICATION, e.g. TELEVISION 127 130
 
 
H04J MULTIPLEX COMMUNICATION 126 40
 
 
H01L SEMICONDUCTOR DEVICES; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR 84 271
 
 
G10L SPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION 66 36
 
 
G06K RECOGNITION OF DATA; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS 52 143
 
 
H01S DEVICES USING STIMULATED EMISSION 49 51
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Top Patents (by citation)

Recent Publications

Publication # Title Filing Date Pub Date Intl Class
2017/0324,472 FRAMER AND FRAMING METHOD Nov 27, 15 Nov 09, 17 [H04J, H04B]
2017/0324,496 OPTICAL TRANSPORT SYSTEM AND RESOURCE OPTIMIZATION METHOD Nov 26, 15 Nov 09, 17 [H04J]
2017/0308,688 ANALYSIS APPARATUS, ANALYSIS SYSTEM, ANALYSIS METHOD, AND ANALYSIS PROGRAM Oct 22, 15 Oct 26, 17 [H04L, G06F]
2017/0310,473 SECURE COMPUTATION SYSTEM AND RELAY DEVICE, AND METHOD, PROGRAM, AND RECORDING MEDIUM THEREOF Oct 02, 15 Oct 26, 17 [H04L]
2017/0310,694 MALICIOUS COMMUNICATION PATTERN EXTRACTION APPARATUS, MALICIOUS COMMUNICATION PATTERN EXTRACTION METHOD, AND MALICIOUS COMMUNICATION PATTERN EXTRACTION PROGRAM Nov 09, 15 Oct 26, 17 [H04L, G06F]
2017/0302,437 NONDECREASING SEQUENCE DETERMINING DEVICE, METHOD AND PROGRAM Oct 05, 15 Oct 19, 17 [H04L, G06F]
2017/0302,442 DEVICE, METHOD AND PROGRAM FOR DETECTING POSITIONS OF PARTIAL CHARACTER STRINGS Oct 05, 15 Oct 19, 17 [H04L, G06F]
2017/0302,445 KEY EXCHANGE METHOD AND KEY EXCHANGE SYSTEM Apr 14, 17 Oct 19, 17 [H04L]
2017/0293,477 ANALYSIS DEVICE, ANALYSIS METHOD, AND ANALYSIS PROGRAM Oct 13, 15 Oct 12, 17 [G06F]
2017/0281,021 HEARTBEAT DETECTION METHOD AND HEARTBEAT DETECTION DEVICE Aug 28, 15 Oct 05, 17 [A61B]

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
9812141 Encoding method, decoding method, encoder apparatus, decoder apparatus, and recording medium for processing pitch periods corresponding to time series signals Jan 07, 11 Nov 07, 17 [G10L]
9813709 Intra-prediction encoding method, intra-prediction decoding method, intra-prediction encoding apparatus, intra-prediction decoding apparatus, program therefor and recording medium having program recorded thereon Sep 26, 13 Nov 07, 17 [H04N]
9794060 Proxy computing system, computing apparatus, capability providing apparatus, proxy computing method, capability providing method, program, and recording medium Dec 22, 16 Oct 17, 17 [H04L, G06F]
9794123 Highly reliable path accommodation design apparatus and method Jan 31, 14 Oct 17, 17 [H04J, H04L]
9794149 User experienced quality estimation apparatus, terminal bottleneck determination apparatus, similar operation extraction apparatus, method and program Mar 29, 13 Oct 17, 17 [H04L, G06F]
9787833 Nurse call system, nurse call conversion unit, nurse call connection method, and program Oct 22, 15 Oct 10, 17 [H04M, H04Q, H04W, A61G, G08B]
9788270 Optical-wireless access system Dec 17, 13 Oct 10, 17 [H04J, H04Q, H04W, H04B]
9780867 Optical communication system and optical communication abnormality-recovery method Oct 21, 14 Oct 03, 17 [H04L, H04J, H04Q, H04B]
9781474 Content playback information estimation apparatus and method and program Nov 01, 12 Oct 03, 17 [H04N]
9768908 Protection method and optical communication system Oct 22, 14 Sep 19, 17 [H04J, H04Q, G02F, H04B]

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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]
2015/0358,644 VIDEO ENCODING APPARATUS AND METHOD, VIDEO DECODING APPARATUS AND METHOD, AND PROGRAMS THEREFOR ABAN Dec 25, 13 Dec 10, 15 [H04N]
2015/0350,678 IMAGE ENCODING METHOD, IMAGE DECODING METHOD, IMAGE ENCODING APPARATUS, IMAGE DECODING APPARATUS, IMAGE ENCODING PROGRAM, IMAGE DECODING PROGRAM, AND RECORDING MEDIA ABAN Dec 20, 13 Dec 03, 15 [H04N, G06T]
2015/0271,527 VIDEO ENCODING METHOD AND APPARATUS, VIDEO DECODING METHOD AND APPARATUS, AND PROGRAMS THEREFOR ABAN Sep 20, 13 Sep 24, 15 [H04N, G06T]
2015/0172,694 MOVING PICTURE ENCODING METHOD, MOVING PICTURE DECODING METHOD, MOVING PICTURE ENCODING APPARATUS, MOVING PICTURE DECODING APPARATUS, MOVING PICTURE ENCODING PROGRAM, MOVING PICTURE DECODING PROGRAM, AND RECORDING MEDIA ABAN Jul 09, 13 Jun 18, 15 [H04N]
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]
8432470 Data conversion/output apparatus for digitalizing sensor data and outputting through a sensor array Expired Feb 22, 11 Apr 30, 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]
8390258 Discharger and discharger control method including a manual switch to provide power to a control means from an input of the discharger Expired Feb 22, 12 Mar 05, 13 [H02J]
8364822 VPN communication control device, communication control method in VPN, and virtual dedicated network management device Expired Jan 29, 04 Jan 29, 13 [H06F]
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]

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