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 45
 
 
H04L TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION 199 110
 
 
H04B TRANSMISSION 169 74
 
 
G06F ELECTRIC DIGITAL DATA PROCESSING 134 288
 
 
H04N PICTORIAL COMMUNICATION, e.g. TELEVISION 130 111
 
 
H04J MULTIPLEX COMMUNICATION 119 41
 
 
H01L SEMICONDUCTOR DEVICES; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR 86 254
 
 
G10L SPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION 63 40
 
 
G06K RECOGNITION OF DATA; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS 51 143
 
 
G02F DEVICES OR ARRANGEMENTS, THE OPTICAL OPERATION OF WHICH IS MODIFIED BY CHANGING THE OPTICAL PROPERTIES OF THE MEDIUM OF THE DEVICES OR ARRANGEMENTS FOR THE CONTROL OF THE INTENSITY, COLOUR, PHASE, POLARISATION OR DIRECTION OF LIGHT, e.g. SWITCHING, GATING, MODULATING OR DEMODULATING; TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF; FREQUENCY-CHANGING; NON-LINEAR OPTICS; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS 50 76
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Top Patents (by citation)

Recent Publications

Publication # Title Filing Date Pub Date Intl Class
2016/0374,615 BIOSIGNAL DETECTING GARMENT Jan 27, 15 Dec 29, 16 [A61B, A41D]
2016/0381,052 URL SELECTION METHOD, URL SELECTION SYSTEM, URL SELECTION DEVICE, AND URL SELECTION PROGRAM Mar 16, 15 Dec 29, 16 [H04L, G06F]
2016/0372,131 SIGNAL PROCESSING APPARATUS, METHOD, AND PROGRAM Feb 25, 15 Dec 22, 16 [G10L]
2016/0373,447 UNAUTHORIZED ACCESS DETECTING SYSTEM AND UNAUTHORIZED ACCESS DETECTING METHOD Jun 19, 14 Dec 22, 16 [H04L]
2016/0364,567 MONITORING DEVICE, MONITORING METHOD AND MONITORING PROGRAM Mar 06, 15 Dec 15, 16 [G06F]
2016/0366,159 TRAFFIC FEATURE INFORMATION EXTRACTION METHOD, TRAFFIC FEATURE INFORMATION EXTRACTION DEVICE, AND TRAFFIC FEATURE INFORMATION EXTRACTION PROGRAM Mar 12, 15 Dec 15, 16 [H04L]
2016/0366,171 EXTRACTION CRITERION DETERMINATION METHOD, COMMUNICATION MONITORING SYSTEM, EXTRACTION CRITERION DETERMINATION APPARATUS AND EXTRACTION CRITERION DETERMINATION PROGRAM Mar 16, 15 Dec 15, 16 [H04L]
2016/0360,200 VIDEO ENCODING METHOD, VIDEO DECODING METHOD, VIDEO ENCODING APPARATUS, VIDEO DECODING APPARATUS, VIDEO ENCODING PROGRAM, AND VIDEO DECODING PROGRAM Dec 22, 14 Dec 08, 16 [H04N]
2016/0338,645 ELECTRODE MATERIAL AND DEVICE Jan 27, 15 Nov 24, 16 [A61B]
2016/0343,387 LINEAR PREDICTIVE ANALYSIS APPARATUS, METHOD, PROGRAM AND RECORDING MEDIUM Jan 20, 15 Nov 24, 16 [G10L]

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
9,524,725 Encoding method, encoder, program and recording medium Sep 30, 13 Dec 20, 16 [H03M, G10L]
9,520,947 Signal generating circuit, optical signal transmitting apparatus, signal receiving circuit, method for establishing optical signal synchronization, and optical signal synchronization system Nov 21, 14 Dec 13, 16 [H04L, H04B]
9,514,567 Screen display device, system, and screen generation method displaying the state of a network Jul 19, 13 Dec 06, 16 [H04L, G06T]
9,515,450 Amplifying optical fiber and optical amplifier Oct 31, 13 Dec 06, 16 [G02B, H01S]
9,500,811 Optical circuit Sep 17, 13 Nov 22, 16 [G02B]
9,494,743 Optical fiber splicing unit, optical fiber splicing method, and holding member for optical fiber splicing unit Mar 07, 14 Nov 15, 16 [G02B]
9,496,979 Space switch device Aug 02, 12 Nov 15, 16 [H04J, H04Q]
9,497,481 Motion vector predictive encoding method, motion vector predictive decoding method, moving picture encoding apparatus, moving picture decoding apparatus, and programs thereof Feb 08, 11 Nov 15, 16 [H04N]
9,491,455 Picture encoding method, picture decoding method, picture encoding apparatus, picture decoding apparatus, picture encoding program, and picture decoding program Jul 31, 12 Nov 08, 16 [H04N]
9,479,282 Optical communication apparatus, optical route switching apparatus and network Apr 26, 12 Oct 25, 16 [H04L, H04J, H04Q, H04B]

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
9,247,324 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]
2013/0218,764 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]
2013/0101,028 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]
2012/0294,372 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]
2012/0172,735 BLOOD PRESSURE MEASURING APPARATUS AND BLOOD PRESSURE MEASURING METHOD ABAN Mar 16, 12 Jul 05, 12 [A61B]
2012/0123,788 CODING METHOD, DECODING METHOD, AND DEVICE AND PROGRAM USING THE METHODS ABAN Jun 22, 10 May 17, 12 [H04B, G10L]
8,157,454 Releasable locking mechanism for optical connector Expired Feb 01, 08 Apr 17, 12 [G02B]
8,134,920 Device and method for correcting a path trouble in a communication network Expired Feb 20, 04 Mar 13, 12 [G01R, H04L]
2012/0053,949 ENCODING DEVICE, DECODING DEVICE, ENCODING METHOD, DECODING METHOD AND PROGRAM THEREFOR ABAN May 28, 10 Mar 01, 12 [G10L]
8,126,712 Information communication terminal, information communication system, information communication method, and storage medium for storing an information communication program thereof for recognizing speech information Expired Feb 08, 06 Feb 28, 12 [G10L]

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