Patents Assigned to NEC
  • Publication number: 20100107024
    Abstract: A semiconductor device, includes a plurality of scan chains for testing a plurality of clock domains whose operating frequencies are different from one another, each of the plurality of scan chains including a plurality of flip-flop circuits, a clock oscillator which generates a plurality of clock signals corresponding to respective operating frequencies that are used to test the plurality of clock domains, a scan clock signal input circuit which receives, from an outside, and a scan clock signal that is supplied to the plurality of scan chains.
    Type: Application
    Filed: October 8, 2009
    Publication date: April 29, 2010
    Applicant: NEC ELECTRONICS CORPORATION
    Inventor: Kouki Tokunaga
  • Publication number: 20100103888
    Abstract: A circuit switching user agent system includes a service processing device arranged in a home network of an IMS (IP Multimedia Subsystem)/MMD (Multi-Media Domain). The circuit switching user agent system also includes a communication device arranged in a visited network where a mobile terminal has visited, the communication device having a function of interconversion between a UNI (User-Network Interface) signal in a circuit switching network to which the mobile terminal is connected and a signal used in the IMS/MMD.
    Type: Application
    Filed: December 11, 2007
    Publication date: April 29, 2010
    Applicant: NEC Corporation
    Inventors: Yusuke Takano, Toshiyuki Tamura
  • Publication number: 20100103573
    Abstract: A semiconductor package includes: a first semiconductor chip; a first internal circuit which operates, in the first semiconductor chip, at a voltage applied between a first high-potential side power supply terminal and a first low-potential side power supply terminal; a second semiconductor chip; a second internal circuit which operates, in the second semiconductor chip, at a voltage applied between a second high-potential side power supply terminal and a second low-potential side power supply terminal; and a first electrostatic protection circuit which is formed in the first semiconductor chip, and which has one end connected to a node between the first internal circuit and the first low-potential side power supply terminal and has the other end connected to a node between the second internal circuit and the second low-potential side power supply terminal.
    Type: Application
    Filed: September 15, 2009
    Publication date: April 29, 2010
    Applicant: NEC ELECTRONICS CORPORATION
    Inventor: Kou Sasaki
  • Publication number: 20100103392
    Abstract: The immersion exposure device cleaning method according to the invention includes: placing a dummy wafer onto a stage of the immersion exposure device; and moving the stage while maintaining an immersion solution between the dummy wafer and a projector lens. The dummy wafer includes a substrate and an adsorption area that is formed on the substrate and has higher adsorption power for particles suspended in the supplied immersion solution than the substrate has for the particles.
    Type: Application
    Filed: October 21, 2009
    Publication date: April 29, 2010
    Applicant: NEC ELECTRONICS CORPORATION
    Inventors: Yoshinori Matsui, Naka Onoda
  • Publication number: 20100102850
    Abstract: A semiconductor device includes an inductor configured to supply a current to a first node based on a higher voltage region power supply voltage. A first switch is configured to selectively supply a current from the first node into a third node based on a voltage on a second node; a second switch is configured to selectively supply a current from the first node into the second node based on a voltage of the third node; a third switch is configured to supply the current from the third node into a ground terminal based on a lower voltage region input logic level; and a fourth switch is configured to be turned ON/OFF alternately with the third switch to supply the current from the second node to the ground terminal.
    Type: Application
    Filed: October 23, 2009
    Publication date: April 29, 2010
    Applicant: NEC Electronics Corporation
    Inventor: Tadashi FUKUI
  • Publication number: 20100103558
    Abstract: The magnetic tape library device is configured, including: a front magazine and a rear magazine for housing a large number of magnetic tape cartridges; a device main body in which the both magazines are housed in a parallel state in a freely slidable manner; an accessor mechanism for transporting the cartridge taken out from the magazines; and a magnetic tape drive which loads the magnetic tape cartridge and reads/writes data. A magazine pullout mechanism for pulling out the rear magazine and a magazine extracting mechanism for extracting the rear magazine from the device main body are provided.
    Type: Application
    Filed: October 22, 2009
    Publication date: April 29, 2010
    Applicant: NEC CORPORATION
    Inventors: Shinichi Sudou, Hiroaki Ishii, Satoshi Wada
  • Publication number: 20100105170
    Abstract: A method for manufacturing a semiconductor device includes cutting a resin sealing body into a plurality of pieces. The resin sealing body includes a plurality of semiconductor chips mounted on a wiring board, a heat spreader disposed above the plurality of the semiconductor chips, and sealing resin filled between the wiring board and the heat spreader. The cutting the resin sealing body includes shaving the resin sealing body from a side of the heat spreader and shaving the resin sealing body from a side of the wiring board. The method prevents the heat spreader from generation of burrs.
    Type: Application
    Filed: October 19, 2009
    Publication date: April 29, 2010
    Applicant: NEC Electronics Corporation
    Inventors: Yuko Sato, Takehiko Maeda, Fumiyoshi Kawashiro
  • Publication number: 20100103205
    Abstract: A driving method includes: dividing a unit period into a plurality of sub-frame periods corresponding to the primary colors; writing a primary color component in each sub-frame period by a first scan executed on the plurality of pixels; irradiating, in each sub-frame period, the plurality of pixels with the corresponding primary color of light by the irradiation unit at a timing that is after the first scan and before the first scan of a subsequent sub-frame period; and waiting a wait period that is from when the first scan of one primary color component among the at least three colors ends until when the irradiation unit starts irradiating the one primary color of light, the wait period for the one primary color being different from wait periods for the other colors.
    Type: Application
    Filed: October 27, 2009
    Publication date: April 29, 2010
    Applicants: SEIKO EPSON CORPORATION, NEC DISPLAY SOLUTIONS, LTD.
    Inventors: Hidehito IISAKA, Hiroyuki HOSAKA, Taku KITAGAWA, Shuichi NAKANISHI, Atsushi KATO
  • Publication number: 20100102420
    Abstract: To provide a semiconductor device in which an interval between first wells can be shortened by improving a separation breakdown voltage between the first wells and a method for manufacturing the same.
    Type: Application
    Filed: October 27, 2009
    Publication date: April 29, 2010
    Applicant: NEC Electronics Corporation
    Inventors: Hidemitsu Mori, Kazuhiro Takimoto, Toshiyuki Shou, Kenji Sasaki, Yutaka Akiyama
  • Publication number: 20100106773
    Abstract: A server realizes reachability from a first user to a second user. The server (100, 200) includes a real-address-information receiving section (110) that receives real-address information, which is capable of contacting therethrough to the second user, from a second terminal (10) used by the second user; and a post-conversion-address-information generation section that generates post-conversion-address information, which the first user cannot specify, based on the real-address information received by the real-address-information receiving section.
    Type: Application
    Filed: March 7, 2008
    Publication date: April 29, 2010
    Applicant: NEC CORPORATION
    Inventors: Natsuko Tsutazawa, Takeaki Minamizawa
  • Publication number: 20100104289
    Abstract: An optical connecting apparatus has a light source outputting an optical signal indicating a plurality of wavelengths which correspond to a plurality of transmission channels, an optical transmit section and an optical receive section being mounted with integrated circuits and being connected to each other through an optical line of a single system, and a signal conversion section being inlet in the optical line and converting a phase modulated signal into an intensity modulated signal.
    Type: Application
    Filed: February 13, 2008
    Publication date: April 29, 2010
    Applicant: NEC CORPORATION
    Inventor: Ichiro Ogura
  • Publication number: 20100106479
    Abstract: A CPU emulation system includes; a plurality of virtual CPUs each operating on a different physical CPU; an instruction sequence selecting section for selecting an instruction sequence to be optimized; a virtual CPU selecting section for selecting one of the plurality of virtual CPUs, which is to perform optimization processing of the selected instruction sequence, based on usage rates of the plurality of virtual CPUs; and an optimization level selecting section for determining an optimization level of the optimization processing that is to be executed by the selected one of the plurality of virtual CPUs, and giving a direction to perform the optimization processing to the selected one of the plurality of virtual CPUs.
    Type: Application
    Filed: October 28, 2009
    Publication date: April 29, 2010
    Applicant: NEC CORPORATION
    Inventor: Satoshi HIEDA
  • Publication number: 20100102292
    Abstract: A semiconductor graphene is used for a channel layer, and a metal graphene is used for electrode layers for a source, a drain, and a gate which serve as interconnections as well. An oxide is used for a gate insulating layer. The channel layer and the electrode layers are located on the same plane.
    Type: Application
    Filed: February 27, 2008
    Publication date: April 29, 2010
    Applicant: NEC Corporation
    Inventors: Hidefumi Hiura, Fumiyuki Nihei, Tetsuya Tada, Toshihiko Kanayama
  • Patent number: 7705945
    Abstract: A switching element is formed on a substrate disposed proximate a liquid crystal layer. A two layer insulation film is formed on the substrate, including a lower film and an upper film. The two layer insulation film overlays the switching element. A convex/concave structure is formed on an upper surface of the two layer insulation film by removing portions of the upper film. A reflection electrode is formed on a surface of the convex/concave structure.
    Type: Grant
    Filed: July 10, 2006
    Date of Patent: April 27, 2010
    Assignees: NEC Corporation, NEC LCD Technologies, Ltd
    Inventors: Hiroshi Kanou, Yuichi Yamaguchi, Hironori Kikkawa
  • Patent number: 7706284
    Abstract: A method of setting shared risk link group identification information (SRLG ID) which is one of link properties employed for calculating a route for a path in a communications network including nodes and links for interconnecting the nodes, and indicates a link group which shares resources, comprises the step of assigning a number of SRLG IDs to the link group in accordance with a failure rate of resources shared by that link group. A route calculating method for calculating routes for a working path and a standby path comprises the step of calculating the routes such that a minimum number of SRLG IDs duplicate between all links on the route of the working path and all links on the route of the standby path.
    Type: Grant
    Filed: April 14, 2005
    Date of Patent: April 27, 2010
    Assignee: NEC Corporation
    Inventor: Yoshihiko Suemura
  • Patent number: 7707343
    Abstract: According to an embodiment of the present invention, an interrupt control circuit that controls a plurality of interrupt requests for interrupt handling executed by a processor, includes: an interrupt control module unit as a detecting unit determining whether or not there is an interrupt request masked with interrupt handling executed by a processor during the interrupt handling; and an interrupt control circuit including a priority mask flag indicating whether or not there is the interrupt request. With such configuration, it is possible to simply determine whether or not there is another masked interrupt request.
    Type: Grant
    Filed: April 27, 2007
    Date of Patent: April 27, 2010
    Assignee: NEC Electronics Corporation
    Inventor: Junichi Sato
  • Patent number: 7705384
    Abstract: A non-volatile storage element 100 has a silicon substrate 102, a first memory region 106a composed of a first lower silicon oxide film 108a, a first silicon nitride film 110a, and a first upper layer silicon oxide film 112a provided in this order, a second memory region 106b composed of a second lower layer silicon oxide film 108b, a second silicon nitride film 110b, and a second upper layer silicon oxide film 112b provided in this order, and a first control gate 114 and a second control gate 116 arranged on the first memory region 106a and the second control gate 116, respectively, on the silicon substrate 102. The silicon nitride film 110 is provided so as to be horizontal in a direction within a substrate plane.
    Type: Grant
    Filed: March 30, 2006
    Date of Patent: April 27, 2010
    Assignee: NEC Electronics Corporation
    Inventor: Akira Yoshino
  • Patent number: 7705767
    Abstract: A synthetic aperture radar to provide high resolution in the azimuth direction under the predetermined conditions of wide observation swathwidth in the range direction, stripmap observation and free PRF (Pulse Repetition Frequency) comprises a transmission antenna 102 for a single system and receiving antennae 104a, 104b for two systems. The beam width in the azimuth direction of a transmission beam 103 from the transmission antenna 102 is set equal to twice as wide as the beam width of each of the receiving antennae 104a, 104b. Moreover, a receiving antenna beam 105a is directed to the moving direction, while the other receiving antenna beam 105b is directed to opposite to the moving direction. The transmission antenna 102 and the receiving antennae 104a, 104b for two systems are used in common by dividing a single array antenna in the elevation direction to configure the receiving antennae 104a, 104b.
    Type: Grant
    Filed: February 19, 2008
    Date of Patent: April 27, 2010
    Assignee: NEC Corporation
    Inventor: Takashi Fujimura
  • Patent number: 7705919
    Abstract: In the video processing device, a correction amount update determining unit determines whether to update a correction amount based on an input image obtained from an image input unit and when a cut point is detected or when the number of frames in a number of frames storing unit exceeds a fixed value, determines that update is required, and at this time, a correction amount obtaining unit obtains a new correction amount based on the input image. Then, if no cut point is detected, an amount of change of a correction amount in time is limited and the obtained result is recorded in a correction amount storing unit, and an image correcting unit conducts quality improving correction processing with respect to the input image based on a correction amount recorded in the correction amount storing unit and the image corrected is sent to an image output unit.
    Type: Grant
    Filed: February 27, 2002
    Date of Patent: April 27, 2010
    Assignee: NEC Corporation
    Inventors: Tetsuaki Suzuki, Akira Inoue
  • Patent number: 7703927
    Abstract: A liquid crystal projector apparatus has a liquid crystal unit having a liquid crystal panel for modulating light, an incident side polarizing plate and an exit side polarizing plate disposed in front of and behind the liquid crystal panel along the optical axis, respectively, a first holder member for holding the liquid crystal unit, a first heat exchanger disposed in close proximity to the first holder member for dissipating heat generated by the liquid crystal unit and then conducted to the first holder member using a coolant liquid which passes through a first channel formed inside the first heat exchanger, a pump for circulating the coolant liquid, and a radiator for cooling the coolant liquid.
    Type: Grant
    Filed: December 2, 2004
    Date of Patent: April 27, 2010
    Assignee: NEC Viewtechnology, Ltd.
    Inventor: Motoyasu Utsunomiya