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 42
 
 
H04L TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION 220 104
 
 
H04B TRANSMISSION 173 72
 
 
G06F ELECTRIC DIGITAL DATA PROCESSING 139 301
 
 
H04N PICTORIAL COMMUNICATION, e.g. TELEVISION 129 124
 
 
H04J MULTIPLEX COMMUNICATION 121 42
 
 
H01L SEMICONDUCTOR DEVICES; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR 84 256
 
 
G10L SPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION 66 37
 
 
G06K RECOGNITION OF DATA; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS 51 149
 
 
H01S DEVICES USING STIMULATED EMISSION 49 55
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Top Patents (by citation)

Recent Publications

Publication # Title Filing Date Pub Date Intl Class
2017/0258,351 HEARTBEAT DETECTION METHOD AND HEARTBEAT DETECTION DEVICE Aug 28, 15 Sep 14, 17 [A61B]
2017/0257,169 FRAMER, OPTICAL TRANSMISSION DEVICE, AND FRAMING METHOD Nov 27, 15 Sep 07, 17 [H04J, H04B]
2017/0249,947 FREQUENCY DOMAIN PARAMETER SEQUENCE GENERATING METHOD, ENCODING METHOD, DECODING METHOD, FREQUENCY DOMAIN PARAMETER SEQUENCE GENERATING APPARATUS, ENCODING APPARATUS, DECODING APPARATUS, PROGRAM, AND RECORDING MEDIUM Feb 16, 15 Aug 31, 17 [G10L]
2017/0237,232 BURST OPTICAL SIGNAL TRANSMISSION DEVICE AND BURST OPTICAL SIGNAL TRANSMISSION METHOD Oct 26, 15 Aug 17, 17 [H01S, H04B]
2017/0224,244 Biological Signal Measurement System, Biological Information Measurement Apparatus, and Biological Information Extraction Algorithm Changing Method Aug 04, 15 Aug 10, 17 [A61B]
2017/0228,265 LOG ANALYSIS APPARATUS, LOG ANALYSIS SYSTEM, LOG ANALYSIS METHOD AND COMPUTER PROGRAM Aug 20, 15 Aug 10, 17 [G06F]
2017/0228,539 CONTROL DEVICE, CONTROL SYSTEM, CONTROL METHOD, AND CONTROL PROGRAM Aug 26, 15 Aug 10, 17 [H04L, G06F]
2017/0228,541 BROWSER EMULATOR DEVICE, CONSTRUCTION DEVICE, BROWSER EMULATION METHOD, BROWSER EMULATION PROGRAM, CONSTRUCTION METHOD, AND CONSTRUCTION PROGRAM Jul 30, 15 Aug 10, 17 [H04L, G06F]
2017/0223,040 IDENTIFYING DEVICE, IDENTIFYING METHOD AND IDENTIFYING PROGRAM Oct 08, 15 Aug 03, 17 [H04L, G06F]
2017/0215,083 WIRELESS COMMUNICATION SYSTEM, WIRELESS COMMUNICATION METHOD, COOPERATION CONTROL APPARATUS, TERMINAL APPARATUS, AND LICENSED BAND BASE STATION APPARATUS Aug 20, 15 Jul 27, 17 [H04W]

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
9753231 Optical connector cleaning tool and optical connector end face observation system Mar 09, 15 Sep 05, 17 [G02B, G01M]
9754608 Noise estimation apparatus, noise estimation method, noise estimation program, and recording medium Jan 30, 13 Sep 05, 17 [G10L]
9747921 Signal processing apparatus, method, and program Feb 25, 15 Aug 29, 17 [H04R, G10L]
9749061 Digital signal processing device Jul 18, 13 Aug 29, 17 [H04L, H04B]
9749079 Optical system, and dynamic wavelength bandwidth allocation method for optical system Dec 06, 13 Aug 29, 17 [H04L, H04J, H04Q]
9739965 Optical fiber ribbon and optical fiber cable housing the optical fiber ribbon Aug 28, 14 Aug 22, 17 [G02B]
9735963 Decryption service providing device, processing device, safety evaluation device, program, and recording medium Jan 15, 14 Aug 15, 17 [H04L]
9722783 Cryptographic system Jul 17, 13 Aug 01, 17 [H04L, G06F, G09C]
9723387 Optical signal processing device with an array waveguide coupled to a slab waveguide with two arcs Sep 27, 13 Aug 01, 17 [H04Q, H04B]
9715396 Terminal device, annotation method, computer system, and computer program Jun 17, 13 Jul 25, 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]
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]
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]
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]
8320391 Acoustic signal packet communication method, transmission method, reception method, and device and program thereof Expired May 10, 05 Nov 27, 12 [H04L, G10L]

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