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 288 39
 
 
H04L TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION 239 104
 
 
H04B TRANSMISSION 179 73
 
 
G06F ELECTRIC DIGITAL DATA PROCESSING 151 296
 
 
H04J MULTIPLEX COMMUNICATION 128 39
 
 
H04N PICTORIAL COMMUNICATION, e.g. TELEVISION 126 126
 
 
H01L SEMICONDUCTOR DEVICES; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR 84 270
 
 
G10L SPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION 66 40
 
 
G06K RECOGNITION OF DATA; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS 52 153
 
 
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 51 90
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Top Patents (by citation)

Recent Publications

Publication # Title Filing Date Pub Date Intl Class
2018/0034,555 MULTI-STAGE INTERFEROMETER CIRCUIT WITH WAVEFORM SHAPING FUNCTION Feb 19, 16 Feb 01, 18 [G02B, G02F, H04B]
2018/0034,766 COMMUNICATION PARTNER CORRESPONDENCE RELATIONSHIP COLLECTING DEVICE, COMMUNICATION PARTNER CORRESPONDENCE RELATIONSHIP COLLECTING METHOD, AND COMMUNICATION PARTNER CORRESPONDENCE RELATIONSHIP COLLECTING PROGRAM Feb 12, 16 Feb 01, 18 [H04L]
2018/0034,900 DESIGN APPARATUS, DESIGN METHOD, AND RECORDING MEDIUM Feb 05, 16 Feb 01, 18 [H04L]
2018/0035,467 WIRELESS COMMUNICATION SYSTEM AND WIRELESS COMMUNICATION METHOD Feb 23, 16 Feb 01, 18 [H04W]
2018/0024,250 SATELLITE SIGNAL RECEPTION CHARACTERISTIC ESTIMATION APPARATUS, METHOD THEREOF, AND PROGRAM THEREOF Feb 12, 16 Jan 25, 18 [G01S]
2018/0025,670 INCONSISTENCY DETECTING METHOD, INCONSISTENCY DETECTING SYSTEM, INCONSISTENCY DETECTING DEVICE, AND PROGRAM Feb 01, 16 Jan 25, 18 [G09C]
2018/0026,424 Electroabsorption Modulator Integrated Distributed Feedback Laser with Integrated Semiconductor Optical Amplifier, and Driving Method for Same Feb 16, 16 Jan 25, 18 [H01S]
2018/0026,862 ESTIMATION DEVICE, ESTIMATION METHOD, AND RECORDING MEDIUM Feb 16, 16 Jan 25, 18 [H04L]
2018/0027,293 QUALITY-OF-EXPERIENCE OPTIMIZATION SYSTEM, QUALITY-OF-EXPERIENCE OPTIMIZATION APPARATUS, RECOMMEND REQUEST APPARATUS, QUALITY-OF-EXPERIENCE OPTIMIZATION METHOD, RECOMMEND REQUEST METHOD, AND PROGRAM Dec 24, 15 Jan 25, 18 [H04N]
2018/0027,591 WIRELESS COMMUNICATION SYSTEM, WIRELESS COMMUNICATION METHOD, WIRELESS LAN ACCESS POINT, AND WIRELESS LAN STATION Feb 23, 16 Jan 25, 18 [H04W]

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
9880101 Flow rate measurement apparatus, antigen concentration measurement apparatus, flow cell, flow rate measurement method, and antigen concentration measurement method Apr 05, 13 Jan 30, 18 [G01P, G01F, G01N]
9882614 Wireless signal transmitting method and wireless apparatus Feb 04, 13 Jan 30, 18 [H04L, H04J, H04W, H04B]
9883262 Optical network system, optical switch node, master node, and node Jun 13, 13 Jan 30, 18 [H04J, H04Q]
9871614 WDM/TDM-PON system and transmission start time correction method thereof Jul 17, 15 Jan 16, 18 [H04L, H04J, H04B]
9872295 Wireless communication apparatus and wireless communication method May 23, 14 Jan 16, 18 [H04L, H04W, H04B]
9866327 Distributed radio communication base station system, base band unit, remote radio unit, and method for operating distributed radio communication base station system Oct 10, 13 Jan 09, 18 [H04W, H04B]
9857217 Opto-electronic integrated circuit, array antenna transmitter, array antenna receiver, and transmitter Sep 21, 12 Jan 02, 18 [H01Q, G02F, G01J, H04B]
9860019 Base station apparatus, wireless communication system, and communication method Jan 29, 15 Jan 02, 18 [H04L, H04W, H04B]
9860058 Secret computation system, arithmetic unit, secret computation method and program Jan 16, 14 Jan 02, 18 [H04L, G06F]
9860278 Log analyzing device, information processing method, and program Jan 30, 14 Jan 02, 18 [H04L]

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
2017/0111,165 PROXY COMPUTING SYSTEM, COMPUTING APPARATUS, CAPABILITY PROVIDING APPARATUS, PROXY COMPUTING METHOD, CAPABILITY PROVIDING METHOD, PROGRAM, AND RECORDING MEDIUM ABAN Dec 22, 16 Apr 20, 17 [H04L, G06F]
2016/0286,288 Optical Switch ABAN Oct 28, 14 Sep 29, 16 [H04Q]
2016/0037,172 IMAGE ENCODING METHOD, IMAGE DECODING METHOD, IMAGE ENCODING APPARATUS, IMAGE DECODING APPARATUS, IMAGE ENCODING PROGRAM, AND IMAGE DECODING PROGRAM ABAN Apr 07, 14 Feb 04, 16 [H04N]
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]
2015/0249,839 PICTURE ENCODING METHOD, PICTURE DECODING METHOD, PICTURE ENCODING APPARATUS, PICTURE DECODING APPARATUS, PICTURE ENCODING PROGRAM, PICTURE DECODING PROGRAM, AND RECORDING MEDIA ABAN Sep 24, 13 Sep 03, 15 [H04N]
2015/0245,062 PICTURE ENCODING METHOD, PICTURE DECODING METHOD, PICTURE ENCODING APPARATUS, PICTURE DECODING APPARATUS, PICTURE ENCODING PROGRAM, PICTURE DECODING PROGRAM AND RECORDING MEDIUM ABAN Sep 24, 13 Aug 27, 15 [H04N]
2015/0189,276 VIDEO ENCODING METHOD AND APPARATUS, VIDEO DECODING METHOD AND APPARATUS, AND PROGRAMS THEREFOR ABAN Jul 09, 13 Jul 02, 15 [H04N]
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]
2014/0373,167 TRACE CENTER APPARATUS AND METHOD FOR ENABLING CONTENTS TO BE TRACED ABAN Aug 08, 13 Dec 18, 14 [G06F]
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]

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