Patents Assigned to NEC Coporation
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Patent number: 10887331Abstract: An information processing apparatus includes: a reach-extent extraction unit configured to extract, with use of a relationship graph representing relationships between a plurality of elements included in a system and location information that indicates, on the relationship graph, a plurality of locations in the system where anomalies have been detected, paths in the relationship graph as being reach extents, the path including a set of the elements that are directly or indirectly related to each of the plurality of locations as a source; and a shared-extent extraction unit configured to extract an influence process of an anomaly by extracting an extent that is shared in at least a prescribed number of paths among paths in the relationship graph that have been extracted as the reach extents.Type: GrantFiled: June 17, 2014Date of Patent: January 5, 2021Assignee: NEC CoporationInventors: Takashi Nomura, Koji Kida, Junpei Kamimura, Yoshiaki Sakae, Etsuko Katsuda, Kazuhiko Isoyama, Kentaro Yamasaki, Yuji Kobayashi
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Patent number: 10885374Abstract: An apparatus of this invention is directed to an information processing apparatus that effectively counts, on a type basis, articles of a plurality of types displayed in a depth direction on a display shelf. The information processing apparatus includes a display count acquirer that acquires display count information of articles using article presence/absence sensors provided on the display shelf on which the articles are placed, an article identifier that acquires article identification information capable of identifying the types of articles based on an image acquired by capturing the display shelf, and a display recognizer that recognizes, based on the display count information and the article identification information, display count of each type of the articles.Type: GrantFiled: September 4, 2019Date of Patent: January 5, 2021Assignee: NEC CoporationInventors: Toshiyuki Nomura, Kota Iwamoto, Kyota Higa, Keishi Ohashi, Wataru Hattori
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Publication number: 20170358829Abstract: Provided is a secondary battery capable of breaking an external electrical connection by way of a simpler configuration when an abnormality such as overcharge occurs. A secondary battery 1 comprises a battery element comprising a positive electrode 11, a negative electrode 12, a separator 13, and an electrolytic solution, and a casing sealing the battery element. The electrolytic solution comprises a gel component and an organic solvent having a boiling point of 125° C. or less. The separator 13 comprises a fiber assembly or a microporous structure composed of one or more resins selected from aramid, polyimide, and polyphenylenesulfide, and has an average void size of 0.1 ?m or more.Type: ApplicationFiled: October 19, 2015Publication date: December 14, 2017Applicant: NEC CoporationInventors: Kazuhiko INOUE, Kenichi SHIMURA
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Patent number: 9838196Abstract: A synchronization apparatus capable of reducing the effect of the fluctuations in synchronization signals that are caused when the synchronization signals are received through a network are provided. A synchronization apparatus (20) according to the present invention receives a synchronization signal transmitted from a synchronization signal source (10) through a network.Type: GrantFiled: August 15, 2013Date of Patent: December 5, 2017Assignee: NEC CoporationInventor: Takatoshi Ogawa
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Patent number: 9657333Abstract: The present invention provides a method for detecting a target substance, including the steps of: preparing a complex (hybrid) comprising an aptamer which binds to the target substance, a first nucleic acid fragment comprising a nucleotide sequence complementary to the aptamer and a photoisomerizable molecule bound to a portion of the complementary nucleotide sequence, wherein the aptamer and the first nucleic acid fragment bound with the photoisomerizable molecule form double-stranded nucleotides binding; subjecting the photoisomerizable molecule to a first photoisomerization treatment to destabilize the double-stranded nucleotides binding; forming a complex of the target substance and the aptamer so as to dissolve the destabilized double-stranded nucleotides binding; subjecting the photoisomerizable molecule to a second photoisomerization treatment to restabilize double-stranded nucleotides binding; and detecting dissolution of double-stranded nucleotides binding wherein the first nucleic acid fragment bounType: GrantFiled: February 19, 2013Date of Patent: May 23, 2017Assignee: NEC CoporationInventor: Kimiyasu Takoh
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Patent number: 9373846Abstract: It is an object of an exemplary embodiment of the present invention to provide a negative electrode active material having excellent rate characteristics and cycle characteristics. One embodiment according to the present invention is a negative electrode active material comprising a carbon-containing composite, wherein, in the carbon-containing composite, an active material capable of intercalating and deintercalating lithium, conductive nanofibers and conductive carbon particles are coated with a carbon material and are integrated.Type: GrantFiled: December 20, 2012Date of Patent: June 21, 2016Assignee: NEC CoporationInventors: Ryota Yuge, Noriyuki Tamura
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Publication number: 20130265415Abstract: A sample is irradiated with terahertz light from a light source, so that an image (G1) is generated by capturing an image of a region (R1) including a point (S) of the sample, and an image (G2) is generated by capturing an image of a region (R2) including the point (S) and separated from the region (R1) by a distance (L). A single image (V) is generated by applying a predetermined binary operation to the images (G1) and (G2).Type: ApplicationFiled: March 18, 2013Publication date: October 10, 2013Applicants: National Institute of Information and Communications Technology, NEC CoporationInventors: Naoki ODA, Iwao HOSAKO, Norihiko SEKINE
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Patent number: 7990271Abstract: Quantities of movements of human and matter within a detection area are detected, based on the read results of an ID holding unit arranged in the detection area or information obtained from a sensor arranged in the detection area. Parameters are decided in accordance with the detected movement quantity, and by using such parameters, whether the detecting object is within the detection area or not is detected, based on the read results of an ID holding unit attached to a detecting object. A stabilizing process is performed based on the detected movement quantities of human and matter within the detection area by employing such constitution. Thus, detection is stabilized without limiting using environment or using method.Type: GrantFiled: April 4, 2006Date of Patent: August 2, 2011Assignee: NEC CoporationInventors: Yusuke Konishi, Toshiyasu Nakao
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Publication number: 20110118395Abstract: Disclosed is a polylactic acid resin composition having excellent bleed resistance and molecular weight retention ratio. A polylactic acid resin molded body is also disclosed. The polylactic acid resin composition contains a polylactic acid resin (a), a metal hydrate (b) having an alkali metal-containing substance content of not more than 0.2% by mass, and a phosphazene derivative (c). The polylactic acid resin molded body is obtained by molding the polylactic acid resin composition. Specifically, a polylactic acid molded body can be produced by filling a melt of the polylactic acid resin composition into a mold at a temperature in the range from glass transition temperature of said polylactic acid resin (a) to 110° C. and molding the melt therein.Type: ApplicationFiled: April 16, 2009Publication date: May 19, 2011Applicant: NEC COPORATIONInventors: Yukihiro Kiuchi, Tsunenori Yanagisawa, Masatoshi Iji, Kazuhiko Inoue, Shin Serizawa
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Publication number: 20100219512Abstract: A method for forming porous insulating film using cyclic siloxane raw material monomer is provided, which method suppresses detachment of hydrocarbon and is able to form a low-density film. In a method where at least cyclic organosiloxane raw material 101 is supplied to a reaction chamber and an insulating film is formed by plasma vapor deposition method, above-mentioned problem is solved by a method for a forming porous insulating film using the mixed gas of a cyclic organosiloxane raw material 101 and a compound raw material 103 including a part of chemical structure comprising the cyclic organosiloxane raw material 101. The compound raw material 103 is preferably a compound including a part of side chain of the cyclic organosiloxane raw material 101.Type: ApplicationFiled: September 8, 2006Publication date: September 2, 2010Applicant: NEC COPORATIONInventors: Munehiro Tada, Naoya Furutake, Tsuneo Takeuchi, Yoshihiro Hayashi
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Patent number: 7482694Abstract: A technique is provided for protecting an interlayer insulating film formed of an organic low dielectric constant material from any damage applied in a semiconductor process, and for attaining the decrease leak current in the interlayer insulating film, resulting in the improvement of reliability of a semiconductor device. The semiconductor device according to the present invention has an organic insulating films having openings. The organic insulating films have modified portions facing the openings. The modified portions contains fluorine atoms and nitrogen atoms. The concentration of the fluorine atoms in the modified portions is lower than the concentration of the nitrogen atoms. The above-mentioned modified layers protect the semiconductor device from the damage applied in the semiconductor process, while suppressing the corrosion of the conductors embedded in the openings.Type: GrantFiled: March 31, 2003Date of Patent: January 27, 2009Assignee: NEC CoporationInventors: Hiroto Ohtake, Munehiro Tada, Yoshimichi Harada, Ken′ichiro Hijioka, Shinobu Saitoh, Yoshihiro Hayashi
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Publication number: 20080056313Abstract: The present invention provides a directly modulatable wavelength variable laser that enables long distance and large volume communication with a simple and compact configuration. The wavelength variable laser includes a semiconductor optical amplifier, an optical filter, and a frequency-amplitude converter. The semiconductor optical amplifier produces optical gain of the light signal. The optical filter configured by multi-stage connected waveguide ring resonators performs frequency modulation on the light signal. The frequency-amplitude converter performs amplitude modulation on the light signal frequency modulated in the optical filter.Type: ApplicationFiled: August 29, 2007Publication date: March 6, 2008Applicant: NEC CoporationInventor: Hiroyuki Yamazaki
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Publication number: 20010055236Abstract: A semiconductor memory includes a block selection circuit, a redundancy main word decoder, a word reset circuit, and a word driver circuit. The block selection circuit outputs a block selection signal based on an address signal. The redundancy main word decoder generates a redundancy main word signal in response to the block selection signal. The word reset circuit outputs a word reset signal in response to the redundancy main word signal. The word driver circuit drives one of word lines in response to the word reset signal, a main word signal indicating selection of the word driver circuit, and a word decode signal indicating selection of the one of word lines.Type: ApplicationFiled: May 24, 2001Publication date: December 27, 2001Applicant: NEC COPORATIONInventors: Yoshinori Matsui, Hiroyuki Yamakoshi
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Publication number: 20010029466Abstract: A rewarding method corresponding to an object selection on a web page, comprising the steps of: (a) designating a predetermined object to each of a plurality of web pages having respective URLs; (b) causing a server to detect that a user of a user terminal unit has selected the object on one of the plurality of web pages having respective URLs; (c) recording an event log correlating an identifier of the user, an identifier of the selected object, and an event that the object has been selected, when the server detects that the user of the user terminal unit has selected the object; (d) determining whether or not the number of objects recorded in the event log exceeds a first predetermined value; and (e) performing a rewarding process to reward the user when the determined result at the step (d) is Yes.Type: ApplicationFiled: April 2, 2001Publication date: October 11, 2001Applicant: NEC COPORATIONInventor: Masaki Ichihara
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Patent number: 6300996Abstract: A liquid crystal display device can suppress pixel-based gradation fluctuations observed upon change in angle of view with increased size as it meets wide angle of view characteristics required of a large-sized liquid crystal display device. A device in which a liquid crystal material is sealed between a pair of substrates 31, 32, a plurality of pixel electrodes 38 for applying voltage across the liquid crystal material is arranged on the substrate 31, a common electrode 12 for applying a voltage common to the pixel electrodes 38 is arranged on the substrate 32, and in which a gate line 22 and a drain line 23 of a switching element adapted to control the voltage applied across the pixel electrodes 38 are provided for extending substantially at right angles to each other.Type: GrantFiled: May 27, 1999Date of Patent: October 9, 2001Assignee: NEC CoporationInventors: Hiroaki Matsuyama, Kazumi Kobayashi, Yoshihiko Hirai, Toshiya Ishii, Hideya Murai, Masayoshi Suzuki
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Patent number: 6233297Abstract: A destuff circuit using a complete secondary system DPLL enables a DPLL circuit applicable to PDH low speed signal interface unit of a transmission communication apparatus to be shared. A switching signal from a selector causes a primary random walk filter, a secondary random walk filter, and counter number of a Q counter to be changed, and also causes the rate length of a rate multiplier to be changed, thereby providing a required DPLL circuit for a respective PDH low speed signal interface.Type: GrantFiled: May 8, 1998Date of Patent: May 15, 2001Assignee: NEC CoporationInventor: Masaaki Itoh
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Patent number: 5991212Abstract: In a semi-conductor integrated circuit device, a memory space provided with the integrated circuit device is not occupied by space for testing the integrated circuit device as the testing memory space. In the test mode of the semi-conductor integrated circuit device, test of internal circuit is capable of being implemented due to the fact that it permits a part of region belonging to the integrated circuit device to allocate to outer memory space. While in a normal operation mode, degree of freedom of design of the integrated circuit device is increased by releasing the testing memory space.Type: GrantFiled: July 7, 1997Date of Patent: November 23, 1999Assignee: NEC CoporationInventor: Ryuji Ishida
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Patent number: 5964824Abstract: The invention provides a high speed two-dimensional discrete cosine transform circuit which can reduce the number of addition operations for rounding to one time. The two-dimensional IDCT circuit calculates M.times.N-point two-dimensional inverse discrete cosine transforms wherein M.times.N is equal to 2.sup.2n, and includes an M.times.N two-dimensional IDCT operator for calculating two-dimensional inverse discrete cosine transforms as matrix vector products of a transform matrix of MN rows and MN columns and MNth-order input vectors, a shift operator for shifting results of the calculation of the M.times.N two-dimensional IDCT operator rightwardly, and an adder for adding 2.sup.n-2 to a discrete cosine coefficient from among discrete cosine transform coefficients to be inputted to the M.times.N two-dimensional IDCT operator. An output signal of the shift operator is outputted as a circuit output signal of the two-dimensional IDCT circuit.Type: GrantFiled: January 31, 1997Date of Patent: October 12, 1999Assignee: NEC CoporationInventors: Eri Murata, Ichiro Kuroda
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Patent number: 5889789Abstract: In a system for estimating a failure mode in a semiconductor device, at least one special functional test pattern is generated and transmitted to the semiconductor device. If an abnormal current is detected, V-I characteristics of the semiconductor device are detected, and are compared with reference V-I characteristics for a special failure mode, thereby estimating that the specified failure mode has occurred.Type: GrantFiled: June 28, 1996Date of Patent: March 30, 1999Assignee: NEC CoporationInventor: Masaru Sanada
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Patent number: 5212460Abstract: A crystal oscillation circuit has a constant-current load type inverter circuit receiving a regulated supply voltage from a voltage regulating circuit and functioning as an inverting amplifier for oscillation; a feedback circuit connected between an input and an output terminal of the inverter circuit and including a resistor and capacitors; and a crystal resonator connected between the input and output terminals of the inverter circuit. The inverter circuit is formed by a constant-current source and a P-channel type MOS-FET or an N-channel type MOS-FET. As the supply voltage from the voltage regulating circuit necessary as an oscillation starting voltage can be set at a low level, the current consumption of the overall oscillation circuit can be effectively reduced.Type: GrantFiled: January 10, 1992Date of Patent: May 18, 1993Assignee: NEC CoporationInventor: Akio Tamagawa