Patents Assigned to NEC
  • Publication number: 20090319967
    Abstract: An analysis and design apparatus for semiconductor device, includes a storage portion, a parameter setting portion, an element characteristic calculation portion, and a determination portion. The storage portion stores structure information and measured values of a transistor. The parameter setting portion divides a channel region into a plurality of regions, and temporarily sets a plurality of impurity concentrations for the plurality of regions as a plurality of parameters. The element characteristic calculation portion calculates a plurality of effective impurity concentrations in the plurality of regions based on the plurality of parameters, calculates a surface potential by solving a Poisson equation using the plurality of effective impurity concentrations, and calculates calculated values of electric characteristics of the transistor using the surface potential.
    Type: Application
    Filed: June 10, 2009
    Publication date: December 24, 2009
    Applicant: NEC Electronics Corporation
    Inventor: Hironori Sakamoto
  • Publication number: 20090316910
    Abstract: A cryptographic key management method and device are provided by which cryptographic keys of multiple nodes can be managed easily and stably. A system includes at least one first node and a plurality of second nodes connected to the first node, and the first node individually generates and consumes a cryptographic key with each of the second nodes connected to the first node itself. A cryptographic key management device in such a system has a monitor that monitors the stored key amounts of cryptographic keys of the individual second nodes, stored at the first node, and a key management control section that performs key generation control on the first node, based on the stored key amounts.
    Type: Application
    Filed: June 10, 2008
    Publication date: December 24, 2009
    Applicant: NEC CORPORATION
    Inventors: Wakako Maeda, Akio Tajima, Akihiro Tanaka, Seigo Takahashi
  • Publication number: 20090318628
    Abstract: The present invention relates to an aliphatic polyester resin composition having excellent hydrolysis resistance, added to an aliphatic polyester resin (A), a reactive monomer (B) (e.g. a monocarbodiimide compound) and a reactive polymer (C) (e.g. a polycarbodiimide compound).
    Type: Application
    Filed: June 4, 2007
    Publication date: December 24, 2009
    Applicant: NEC CORPORATION
    Inventors: Shukichi Tanaka, Yukihiro Kiuchi, Masatoshi Iji
  • Publication number: 20090317991
    Abstract: An object fitting/removing drive unit which is capable of enhancing accuracy of positioning and fitting of objects to be connected. To determine a position of a header connector on an imaginary plane which is orthogonal to a fitting/removing direction of a cable connector, cutouts which are fitted in flanges to position the flanges are formed in an inner frame.
    Type: Application
    Filed: June 11, 2009
    Publication date: December 24, 2009
    Applicants: JAPAN AVIATION ELECTRONICS INDUSTRY, LIMITED, NEC Corporation
    Inventors: Shigeharu AOKI, Masahiro YAMAUCHI
  • Publication number: 20090315191
    Abstract: In order to form a semiconductor integrated circuit capable of effectively using a chip area, there is provided a semiconductor integrated circuit (1) including: a plurality of bonding pads (5, 6, 7) formed along an edge of a semiconductor substrate (2); a plurality of I/O cells (3) arranged along the edge under the plurality of bonding pads (5, 6, 7); an upper layer wire mesh (24) including a plurality of upper layer wirings (13); and a core region (4) formed on the semiconductor substrate (2). In the semiconductor integrated circuit (1), the core region (4) has an area larger than an area occupied by the upper layer wire mesh (24) in a plane parallel to a surface of the semiconductor substrate (2).
    Type: Application
    Filed: April 9, 2009
    Publication date: December 24, 2009
    Applicant: NEC Electronics Corporation
    Inventor: Kenichi Ishikawa
  • Publication number: 20090315183
    Abstract: A layer-stacked wiring made up of a microcrystalline silicon thin film and a metal thin film is provided which is capable of suppressing an excessive silicide formation reaction between the microcrystalline silicon thin film and metal thin film, thereby preventing peeling of the thin film. In a polycrystalline silicon TFT (Thin Film Transistor) using the layer-stacked wiring, the microcrystalline silicon thin film is so configured that its crystal grains each having a length of the microcrystalline silicon thin film in a direction of a film thickness being 60% or more of a film thickness of the microcrystalline silicon thin film amount to 15% or less of total number of crystal grains or that its crystal grains each having a length of the microcrystalline silicon thin film in a direction of a film thickness being 50% or less of a film thickness of the microcrystalline silicon thin film amount to 85% or more of the total number of crystal grains making up the microcrystalline silicon thin film.
    Type: Application
    Filed: June 24, 2009
    Publication date: December 24, 2009
    Applicants: NEC Corporation, NEC LCD Technologies, Ltd.
    Inventors: Jun TANAKA, Hiroshi KANOH
  • Publication number: 20090318673
    Abstract: The present invention provides: a method of changing the fluorescence wavelength of a GFP-like fluorescent protein from copepod while maintaining recombinant expression efficiency, which comprises identifying a structural factor for determining the fluorescence wavelength thereof in the three-dimensional structure of the protein and modifying amino acid residues associated with the structural factor; and a modified fluorescent protein obtained by applying said method. For example, with regard to a GFP-like fluorescent protein from Chiridius poppei, His52 in an ? helix-like secondary structure: PFLLSHCMGYGFYHF (?1 47-61) comprising a fluorescent moiety site GYG is replaced with an aromatic amino acid selected from Phe, Tyr and Trp, so as to cause a red shift of the fluorescent peak wavelength; or it is replaced with Ala, Val, Ile, Leu, Gly, Cys, Met, Ser, Thr, or Asp, Asn, Glu or Gln, so as to cause a blue shift of the fluorescence peak wavelength.
    Type: Application
    Filed: January 25, 2007
    Publication date: December 24, 2009
    Applicant: NEC SOFT, LTD.
    Inventors: Kyoko Suto, Hiromi Takenaka, Yasuhiro Takenaka
  • Publication number: 20090318146
    Abstract: The present invention provides a setting information registration apparatus that can prevent unnecessary setting information from being generated, when setting information needed at the time of performing wireless communication is generated. A setting information registration apparatus (100) arbitrarily collects unique identification information of unspecific apparatuses, and extracts unique identification information of a specific wireless apparatus (STA) from the arbitrarily collected identification information. In addition, the setting information registration apparatus (100) generates setting information needed when a wireless apparatus performs wireless communication, on the basis of the extracted identification information, and registers the generated setting information in wireless control apparatuses (200, 201, 300, and 301).
    Type: Application
    Filed: July 3, 2007
    Publication date: December 24, 2009
    Applicant: NEC CORPORATION
    Inventor: Yasuhiro Mizukoshi
  • Publication number: 20090318176
    Abstract: A method according to the present invention comprises determining an available information rate for communication, via a first base station, between a plurality of terminals and a second base station based on link capacity information for wireless communication between the first base station and the second base station, and controlling each of information rates for the communication between the plurality of terminals and the second base station based on the available information rate. Here, the plurality of terminals and the first base station being in a mobile object, the second base station being outside the mobile object.
    Type: Application
    Filed: August 24, 2009
    Publication date: December 24, 2009
    Applicant: NEC CORPORATION
    Inventor: MASAHIKO YAHAGI
  • Publication number: 20090319754
    Abstract: A reconfigurable device comprises a plurality of processing elements, a main memory unit that stores plural pieces of circuit configuration information, a cache unit that caches circuit configuration information forwarded to at least one of the processing elements from the main memory unit, and a cache control unit that controls forwarding of circuit configuration information from the cache unit to the processing element. The cache control unit selects circuit configuration information which must be forwarded to each processing element. When the selected circuit configuration information is not stored in the cache unit, the cache control unit reads out the circuit configuration information from the main memory unit, stores the read-out circuit configuration information in the cache unit, and sends forward the circuit configuration information to the processing element from the cache unit.
    Type: Application
    Filed: June 17, 2009
    Publication date: December 24, 2009
    Applicants: NEC Corporation, NEC Electronics Corporation
    Inventors: Takao TOI, Toru AWASHIMA, Taro FUJII, Toshiro KITAOKA, Koichiro FURUTA, Masato MOTOMURA
  • Publication number: 20090317689
    Abstract: A liquid supply container (1) provided in a fuel cell system includes a liquid chamber (10) that stores liquid therein, and a liquid supply port (30) provided in the liquid chamber (10) so as to supply the liquid stored therein to a liquid acceptor, and the liquid chamber (10) includes a groove (11) having a V-shape cross-section and formed on an upper surface (13C) of the liquid chamber (10), which serves to allow communication between the inside and the outside of the liquid chamber (10) in the case the internal pressure increases over a predetermined level.
    Type: Application
    Filed: July 9, 2007
    Publication date: December 24, 2009
    Applicant: NEC Corporation
    Inventors: Hidekazu Kimura, Suguru Watanabe, Toru Takahashi, Nobuo Katsuura, Minoru Murata, Kiyoshi Isobe
  • Publication number: 20090315190
    Abstract: A wiring board has an insulating layer, a plurality of wiring layers formed in such a way as to be insulated from each other by the insulating layer, and a plurality of vias formed in the insulating layer to connect the wiring layers. Of the wiring layers, a surface wiring layer formed in one surface of the insulating layer include a first metal film exposed from the one surface and a second metal film embedded in the insulating layer and stacked on the first metal film. Edges of the first metal film project from edges of the second metal film in the direction in which the second metal film spreads. By designing the shape of the wiring layers embedded in the insulating layer in this manner, it is possible to obtain a highly reliable wiring board that can be effectively prevented from side etching in the manufacturing process and can adapt to miniaturization and highly dense packaging of wires.
    Type: Application
    Filed: June 29, 2007
    Publication date: December 24, 2009
    Applicant: NEC CORPORATION
    Inventors: Katsumi Kikuchi, Shintaro Yamamichi, Hideya Murai, Takuo Funaya, Kentaro Mori, Takehiko Maeda, Hirokazu Honda, Kenta Ogawa, Jun Tsukano
  • Publication number: 20090315871
    Abstract: An object of the present invention is to realize a transmission distortion correction system for allowing an image signal including a plurality of picture signals to be corrected, and to realize an image signal transmitter and an image display unit.
    Type: Application
    Filed: February 26, 2008
    Publication date: December 24, 2009
    Applicant: NEC Display Solutions, Ltd.
    Inventor: Reiichi Kobayashi
  • Publication number: 20090315186
    Abstract: An etching stopper film is formed on top of a first insulating film. The etching stopper film is a film formed by depositing at least two films, made of constituent materials identical in quality to each other, one another. Subsequently, a first opening pattern is formed in the etching stopper film. Subsequently, a second insulating film is formed on top of the etching stopper film. Subsequently, a mask pattern is formed on top of the second insulating film. Subsequently, the second insulating film is etched with the use of the mask pattern as a mask to be followed by etching of the first insulating film with the use of the etching stopper film as a mask.
    Type: Application
    Filed: June 2, 2009
    Publication date: December 24, 2009
    Applicant: NEC Electronics Corporation
    Inventor: Ken Ozawa
  • Publication number: 20090319855
    Abstract: A turbo coded hybrid ARQ with both IR and repetition existing in one or more transmission blocks is designed. The mixed combining is performed at the receiver—Chase combining is performed for the repetitions first, followed by code combining for all code bits based on Chase combining outputs. The packet error probability is obtained by applying the union-Bhattacharyya (UB) bound for parallel channels. The throughput optimization of hybrid ARQ is determined as well as the optimal assignment rates by solving the optimization using a genetic algorithm.
    Type: Application
    Filed: June 9, 2009
    Publication date: December 24, 2009
    Applicant: NEC LABORATORIES AMERICA, INC.
    Inventors: Guosen Yue, Xiaodong Wang
  • Publication number: 20090319273
    Abstract: An audio content generation system is a system for generating audio contents including a voice synthesis unit 102 which generates synthesized voice from text; and is provided with an audio content generation unit 103 which is connected to a multimedia database 101 in which contents mainly composed of audio article data V1 to V3 or text article data T1 and T2 are registered respectively, generates synthesized voice SYT1 and SYT2 for the text article data T1 and T2 registered in the multimedia database 101 by using the voice synthesis unit 102, and generates audio contents in which the synthesized voice SYT1 and SYT2 and the audio article data V1 to V3 are organized in accordance with a predetermined order.
    Type: Application
    Filed: June 27, 2007
    Publication date: December 24, 2009
    Applicant: NEC CORPORATION
    Inventors: Yasuyuki Mitsui, Shinichi Doi, Reishi Kondo, Masanori Kato
  • Publication number: 20090319513
    Abstract: [Problems] To accurately calculate similarity between media data and a query even if the media data or its meta data has an error. [Means for Solving the Problems] A similarity calculation device includes: a single score calculation device used when calculating similarity between first media data and a query, which calculates a single score that shows similarity between second media data different from the first media data and the query; an inter-media similarity calculation device which calculates inter-media similarity that shows the similarity between the second media data and the first media data; and a query similarity calculation device which obtains similarity between the first media data and the query by using the inter-media similarity of the second media data and the single score.
    Type: Application
    Filed: August 2, 2007
    Publication date: December 24, 2009
    Applicant: NEC Corporation
    Inventors: Makoto Terao, Takafumi Koshinaka, Shinichi Ando, Yoshifumi Onishi
  • Publication number: 20090316552
    Abstract: A time interval analyzer includes a phase comparator which decides whether a measured signal contains a delay quantity for either a positive delay or a negative delay relative to a characteristic value, and a processor circuit which outputs a ratio of a number of the measured signals containing the positive delay and a number of the measured signals containing the negative delay.
    Type: Application
    Filed: May 14, 2009
    Publication date: December 24, 2009
    Applicant: NEC ELECTRONICS CORPORATION
    Inventor: Toshiaki Kitano
  • Patent number: 7636791
    Abstract: Search IP addresses are detected from among a preset number of selected IP addresses available on the network, and DNS query message and ICMP echo request message are transmitted at a time to the detected search IP addresses. DNS server and router IP addresses are detected from response messages in response to the DNS query message and the ICMP echo request message.
    Type: Grant
    Filed: March 18, 2004
    Date of Patent: December 22, 2009
    Assignee: NEC Corporation
    Inventor: Masao Shimada
  • Patent number: 7636870
    Abstract: To provide a debugging system, debugging method, and a semiconductor integrated circuit device capable of collecting debug-target information with accuracy and improving debug efficiency. A semiconductor integrated circuit device according to an embodiment of the present invention includes: subsystems; a break detecting unit detecting that a program execution of a CPU core in one subsystem satisfies a predetermined break condition; and a break selecting unit stopping operations of one selected from the subsystems in accordance with the detection result of the break detecting unit.
    Type: Grant
    Filed: October 26, 2006
    Date of Patent: December 22, 2009
    Assignee: NEC Electronics Corporation
    Inventor: Shigeyuki Ueno