Patents Assigned to NEC
  • Patent number: 7668033
    Abstract: A fuse circuit in accordance with one embodiment of the present invention includes a first power supply line, a second power supply line, a current source connected between the first power supply line and an output terminal, a first transistor having a drain or a collector connected to the output terminal, the first transistor having a current supply capability or a current draw capability larger than that of the current source for the output terminal, a second transistor having a gate or a base connected in common with the gate or the base of the first transistor, a first resistive element and a fuse connected in series between the source or the emitter of either one of the first or second transistor and the second power supply line, and a second resistive element connected between the source or the emitter of the other one of the first or second transistor and the second power supply line.
    Type: Grant
    Filed: August 4, 2008
    Date of Patent: February 23, 2010
    Assignee: NEC Electronics Corporation
    Inventors: Kenji Mori, Masayuki Takori
  • Patent number: 7668547
    Abstract: A method of reselecting a cell by a mobile terminal in idle mode in a cellular telecommunication network in which the network sends to the terminal a list containing information with regard to the UMTS cells to be identified, and in which the mobile terminal periodically performs a series of procedures of identifying the cells and a series of intersystem measurements on the identified cells. Between two successive procedures of identification, the mobile terminal performs a series of procedures of measurement whose duration is fixed so that the total duration for performing a procedure of identification and the subsequent series of procedures of measurement is less than 25 seconds.
    Type: Grant
    Filed: August 12, 2008
    Date of Patent: February 23, 2010
    Assignee: NEC Corporation
    Inventors: Javier Sanchez, Jean Pierre Lambert
  • Patent number: 7666744
    Abstract: A semiconductor device comprises a plurality of unit cells, each comprising a vertical metal oxide semiconductor field effect transistor (MOSFET). The unit cell includes a first source region formed in a first base region, a second source region formed in the first base region and separated from the first source region, and a second base region formed in the first base region and disposed between the first and second source regions. The semiconductor device further comprises a trench gate formed in a vicinity of each of the plurality of unit cells. The second base region of an unit cell is separated from the second base region of an adjacent unit cell, and the first or second source region of an unit cell is separated from the first or second source region of an adjacent unit cell.
    Type: Grant
    Filed: July 1, 2008
    Date of Patent: February 23, 2010
    Assignee: NEC Electronics Corporation
    Inventor: Kenya Kobayashi
  • Patent number: 7667295
    Abstract: In a semiconductor device including a bipolar transistor, a base region has a two layer structure including a first base region, and a second base region which is provided around the first base region and has a lower impurity density than that of the first base region and has a shallower depth than that of the first base region.
    Type: Grant
    Filed: May 16, 2008
    Date of Patent: February 23, 2010
    Assignee: NEC Electronics Corporation
    Inventor: Hiroki Fujii
  • Patent number: 7666694
    Abstract: An improved throughput can be presented, since an influence of the deterioration in crystallinity created in the epitaxial layer can be eliminated by a simple and easy method, and a semiconductor laser device having stabilized properties such as threshold current, slope efficiency, device life time and the like can be presented. A method for manufacturing a semiconductor laser device according to the present invention comprises: forming partially a diffraction grating on a surface of a semiconductor substrate or on a film on the surface of the semiconductor substrate; and forming a multiple-layered film by forming an epitaxial layer on a surface of the diffraction grating. The operation of forming the diffraction grating includes an operation of forming the diffraction grating so that a width of the diffraction grating in a direction that is orthogonal to a cavity direction of the semiconductor laser device is presented as a width equal to or longer than a sum of a mesa width and 30 ?m.
    Type: Grant
    Filed: September 18, 2006
    Date of Patent: February 23, 2010
    Assignee: NEC Electronics Corporation
    Inventors: Masahide Kobayashi, Shotaro Kitamura
  • Patent number: 7668155
    Abstract: A hold sound and audible sound data memory area of a memory holds a plurality of types of hold sound and audible sound data which are stored in a payload format of an RTP packet. An RTP/hold sound or audible sound switching function writes one of an RTP packet and the hold sound or audible sound data into a DSP. A hold sound or audible sound data selection function selects a hold sound or audible sound to be reproduced from the plurality of types of hold sound and audible sound data. A hold sound or audible sound intermittence control function restricts the input of the hold sound or audible sound data into the DSP, to control the intermittence of the hold sound or audible sound. A hold sound or audible sound periodic reproduction function periodically inputs the hold sound or audible sound data into the DSP. The DSP converts the RTP packet such as voice or the hold sound or audible sound data into a voice signal of a PCM signal.
    Type: Grant
    Filed: October 21, 2004
    Date of Patent: February 23, 2010
    Assignee: NEC Corporation
    Inventors: Michiko Omori, Mao Masuhiro, Yasuhiro Watanabe
  • Patent number: 7668070
    Abstract: A phase-change disk has first and second disk sections each including a recording layer and a reflective layer. The first disk section includes a transmission-factor control film including first through third dielectric layers having refractive indexes of n1, n2 and n3, where n1>n2<n3, for improving the transmission factor of the first disk section, which increases the optical intensity of the reflected light from the second disk section.
    Type: Grant
    Filed: August 29, 2006
    Date of Patent: February 23, 2010
    Assignee: NEC Corporation
    Inventor: Shuichi Ohkubo
  • Patent number: 7665816
    Abstract: The invention provides a semiconductor device of low power consumption and low cost. A semiconductor device 50 is basically constituted of a semiconductor substrate 1 and an external signal processing substrate 8. The semiconductor substrate 1 is provided with a memory unit 3, a data driver 4, an element array 2, a scanning circuit 35 and a clock generator 36. When successively outputting an identical data signal to the element array 2 over a plurality of times, the data signal retained in the memory unit 3 is utilized.
    Type: Grant
    Filed: January 13, 2006
    Date of Patent: February 23, 2010
    Assignee: NEC Corporation
    Inventor: Tomohiko Otose
  • Patent number: 7667807
    Abstract: An IPS-mode LCD device includes a TFT substrate and a counter substrate sandwiching therebetween a LC layer. Each pixel includes a pixel electrode covered by a passivation film formed on the TFT substrate, and a common electrode formed on the top surface of the passivation film. The passivation film has a first thickness at a portion in contact with the common electrode and a second thickness smaller than the first thickness at a portion in contact with the pixel electrode, thereby having a flat top surface of the passivation film.
    Type: Grant
    Filed: July 27, 2006
    Date of Patent: February 23, 2010
    Assignee: NEC LCD Technologies, Ltd.
    Inventor: Shinichi Nishida
  • Patent number: 7668076
    Abstract: A multi-user receiving apparatus is provided for achieving a reduction in the amount of processing for single-carrier FDMA signals and an improvement in reception characteristics. A DFT unit converts single-carrier FDMA received signals of all users to signals in a frequency domain commonly. A demapping unit selects part of sub-carriers for each user from sub-carriers supplied from the DFT unit. A reception filter separates a user signal and suppresses noise. A demodulator demodulates the user signal, and detects a timing thereof.
    Type: Grant
    Filed: September 22, 2006
    Date of Patent: February 23, 2010
    Assignee: NEC Corporation
    Inventors: Shousei Yoshida, Masayuki Kimata, Yoshikazu Kakura, Kengo Oketani
  • Patent number: 7668401
    Abstract: A shape deformation encoding device includes: a calculation unit for calculating a difference data between a pre-deformation shape data which represents a shape of an object before shape change and a post-deformation shape data which represents a shape of the object after shape change; and a determination unit for determining an action area on which the shape change of the object is arisen and an external force which is acted to the action area for the shape change, based on the pre-deformation shape data and the difference data. The action area includes a plurality of small areas, each of the plurality of small areas includes a plurality of control points, and the external force is calculated as an external force required to deform the plurality of small areas from before to after the shape change independently based on the physical model structure of each of the plurality of small areas.
    Type: Grant
    Filed: August 25, 2004
    Date of Patent: February 23, 2010
    Assignee: NEC Corporation
    Inventor: Atsushi Marugame
  • Patent number: 7668383
    Abstract: Image processing, compressing, decompressing, transmitting, sending and receiving devices and methods, their programs and a displaying device, in which a bit plane number is increased again after the bit plane number is first reduced to enable it to largely improve or remove granular quality deterioration in a mild gradation area and a plain gradation area within an image. For data compression, a first image processor includes a block coder for executing a reversible compression of image data of pixels of a raster image and a bit plane compressor for conducting an irreversible compression of the image data. For data decompression, a second image processor includes a bit plane decompressor for carrying out an irreversible decompression of the compressed data and a block decoder for executing a reversible decoding of the compressed data, to output decompressed image data to a display for displaying a reproduced raster image. The compressed data is once stored in a memory.
    Type: Grant
    Filed: March 29, 2006
    Date of Patent: February 23, 2010
    Assignee: NEC Corporation
    Inventor: Daigo Miyasaka
  • Patent number: 7667279
    Abstract: Disclosed is a semiconductor device which has a circuit-forming region. The semiconductor device has a semiconductor substrate, a plurality of insulating interlayer films, a guard ring, and a first MIM capacitor. The insulating interlayer films, which are stacked one upon another, are provided over the semiconductor substrate. The guard ring is formed in the plurality of insulating interlayer films and surrounds the circuit-forming region. The guard ring is separated from an insulating interlayer film including a topmost interconnect. The MIM capacitor is provided between the guard ring and the insulating interlayer film including the topmost interconnect.
    Type: Grant
    Filed: February 1, 2008
    Date of Patent: February 23, 2010
    Assignee: NEC Electronics Corporation
    Inventor: Yasutaka Nakashiba
  • Patent number: 7667716
    Abstract: There is provided an apparatus for converting an object display description document, which enables to reduce load for displaying an image and a capacity necessary for storing document data. A browser including the apparatus is also provided. The apparatus comprises a generating means for generating, from a set of source objects in a document, a set of new objects to obtain a display image equivalent to a display image obtained from the set of source objects. The new objects are fewer than the set of source objects.
    Type: Grant
    Filed: December 6, 1999
    Date of Patent: February 23, 2010
    Assignee: NEC Corporation
    Inventor: Sachiko Nishiura
  • Patent number: 7667538
    Abstract: A differential amplifier comprises terminals for receiving signals, and outputting a signal, and differential pairs, each having an input and output pair, the differential pairs supplied with currents, respectively, a load circuit connected to the differential pairs, an amplifier stage for receiving input, a signal of at least one connection node of the load circuit and output pairs of the differential pairs, the amplifier stage having an output connected to a terminal and a connection switching circuit for controlling switching between connection states of a first differential pair and second differential pair.
    Type: Grant
    Filed: April 25, 2006
    Date of Patent: February 23, 2010
    Assignee: NEC Corporation
    Inventor: Hiroshi Tsuchi
  • Patent number: 7668985
    Abstract: An information processing apparatus includes: a plurality of interfaces each of which supports any one of a plurality of types of devices; and a controller which controls devices. The interfaces and the controller are connected so as to link together in series.
    Type: Grant
    Filed: March 2, 2007
    Date of Patent: February 23, 2010
    Assignee: NEC Corporation
    Inventor: Takashi Abe
  • Publication number: 20100041414
    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: October 22, 2009
    Publication date: February 18, 2010
    Applicant: NEC CORPORATION
    Inventor: Masahiko Yahagi
  • Publication number: 20100039969
    Abstract: It is possible to prevent degradation of power consumption efficiency or lowering of a communication rate in a radio communication. Each node 50 determines a transmission power for data communication so that the number of searched nodes reaches a target value and stores the node address of the searched node by the transmission power in an adjacent node address storage unit 25. Moreover, the transmission power for control communication is determined in the same way. When the node 50 transmits a data frame to another node, an ERTS frame including the node address stored in the adjacent node address storage unit 25 is transmitted by the transmission power for the control communication. After an ECTS frame is received, the data frame is transmitted by the transmission power for the data communication. A control information input/output unit 24 identifies the node in an NAV period from the received ERTS frame or the like and stores the node address of the node in an NAV setting node address storage unit 26.
    Type: Application
    Filed: October 9, 2007
    Publication date: February 18, 2010
    Applicant: NEC CORPORATION
    Inventors: Teruki Sukenari, Daigo Taguchi, Toshiyasu Nakao, Yusuke Konishi
  • Publication number: 20100039354
    Abstract: A display panel which can be applied to a display device comprises a first substrate, a second substrate and a display element layer. The first substrate has a structure in which a device layer is stacked on an insulating substrate via a first conductive layer. A device layer has at least, a pixel electrode and a wiring that are connected to a pixel switch. The second substrate includes a second conductive layer that is provided so as to face the pixel electrode arranged on the above first substrate. A display element layer is interposed between the above first substrate and the above second substrate.
    Type: Application
    Filed: August 13, 2009
    Publication date: February 18, 2010
    Applicant: NEC LCD Technologies, Ltd.
    Inventor: Michiaki SAKAMOTO
  • Publication number: 20100042936
    Abstract: There is provided a browsing technology capable of performing a browsing operation intuitively as well as by a smaller number operations without the need of a device capable of performing a direct pointing such as a mouse in a layout arrangement reflecting the intention of a creator of a browsing document. Browsing documents are displayed at an ordinary display mode and in a zapping display mode. The ordinary display mode is a mode for displaying an entire display screen (a first display region) on which an entire HTML document, in which a browsing target is blocked, is displayed and a detail display screen (a second display region) on which the detail of the blocked HTML document is displayed.
    Type: Application
    Filed: August 21, 2006
    Publication date: February 18, 2010
    Applicant: NEC CORPORATION
    Inventors: Satoru Ooga, Kyousuke Nishiyama, Shuji Senda, Yushin Tatsumi