Patents Assigned to NEC
  • Patent number: 7657252
    Abstract: A portable terminal with a telephone or radio communication function, a call response message transmitting method and a server for, when the user cannot answer an incoming call, enabling the user of the portable terminal to inform the caller of his/her situation that does not allow him/her to answer the call. A portable terminal comprises a storage for storing information on different types of messages each being associated with an image in a prescribed pose or gesture and a camera section for shooting an image when a call is received. The portable terminal recognizes the pose or gesture from an image shot by the camera section, and selecting a message corresponding to the recognized pose or gesture from the storage, and transmits the selected message to a calling terminal.
    Type: Grant
    Filed: April 13, 2005
    Date of Patent: February 2, 2010
    Assignee: NEC Corporation
    Inventor: Toshiyuki Futami
  • Patent number: 7656372
    Abstract: An object is to prevent a defective indication caused by a reverse twisted domain generated from the dummy pixel region which is provided in the periphery of a display pixel region. By setting a signal voltage to be applied to the pixels of the dummy pixel region to be lower than the maximum value of a video signal voltage which is applied to the display pixel region and also setting it to be in a level by which a defective indication is not caused due to a traverse electric field between the neighboring dummy pixel region and the display pixel region, generation of the reverse twisted domain within the dummy pixel region can be suppressed. Thereby, the defective indication caused by the reverse twist can be prevented.
    Type: Grant
    Filed: February 24, 2005
    Date of Patent: February 2, 2010
    Assignee: NEC Corporation
    Inventors: Tetsushi Sato, Hiroyuki Sekine
  • Patent number: 7657187
    Abstract: An optical transmission apparatus for amplifying and relaying a wavelength-division-multiplexed optical signal includes (1) a variation-detecting unit which detects varying speed of input power of the wavelength-division-multiplexed optical signal and compares the varying speed with a set value, (2) an optical amplifying unit which amplifies the wavelength-division-multiplexed optical signal at a fixed amount of amplification, (3) a variable optical attenuating unit which variably attenuates the wavelength-division-multiplexed optical signal, (4) and a controlling unit which controls attenuation amount of the variable optical attenuating unit in accordance with the varying speed.
    Type: Grant
    Filed: March 8, 2006
    Date of Patent: February 2, 2010
    Assignee: NEC Corporation
    Inventor: Katsuhiko Shimizu
  • Patent number: 7655506
    Abstract: A leadless type resin-sealed semiconductor package includes a resin enveloper having a mounting face to be applied to a wiring board, and at least one side face associated with the mounting face to produce an angled side edge. A semiconductor chip is encapsulated and sealed in the resin enveloper. An electrode terminal is partially buried in the angled side edge of the resin enveloper so as to be exposed to an outside, with the electrode terminal being electrically connected to the semiconductor chip. The electrode terminal is formed with a depression which is shaped so as to be opened to an outside when the resin enveloper is placed on the wiring board such that the mounting face of the resin enveloper is applied thereto.
    Type: Grant
    Filed: January 5, 2007
    Date of Patent: February 2, 2010
    Assignee: NEC Electronics Corporation
    Inventor: Yukinori Tabira
  • Patent number: 7656419
    Abstract: A drive circuit that is an example of the present invention is a drive circuit of a display device for outputting in parallel the analog picture signals generated based on the digital picture signals inputted in serial. This circuit comprises a level shift circuit for converting the voltage level of the digital picture signals that were inputted in serial, a D/A conversion circuit for generating analog picture signals based on the digital picture signals that were subjected to level conversion with the level shift circuit, and an expansion circuit connected to the output side of the D/A conversion circuit or between the level shift circuit and the D/A conversion circuit and serving to expand and hold the inputted serial picture signals in parallel and output the picture signals in parallel. The level shift circuit is thus formed in the front stage of the picture signal register circuit.
    Type: Grant
    Filed: September 8, 2008
    Date of Patent: February 2, 2010
    Assignee: NEC Electronics Corporation
    Inventor: Yoshiharu Hashimoto
  • Patent number: 7657371
    Abstract: A positioning apparatus having short sensory time for executing the high precision positioning of the user on a map. The positioning apparatus includes: a first positioning unit for obtaining a first position information which represents the position of the positioning apparatus itself measured by carrying out a low precision positioning; a displaying unit for displaying the first position information; and a second positioning unit for obtaining the second position information which represents the position of the positioning apparatus itself measured by carrying out a high precision positioning. The high precision positioning is executed in parallel with the low precision positioning. The displaying unit updates a screen based on the second position information.
    Type: Grant
    Filed: March 10, 2006
    Date of Patent: February 2, 2010
    Assignee: NEC Electronics Corporation
    Inventor: Keiichi Hirano
  • Patent number: 7656911
    Abstract: To facilitate phase adjustment in an external resonator type wavelength-variable laser. An external resonator type wavelength-variable laser (50) includes a semiconductor light amplifier (1), a wavelength selection filter (3) having periodic frequency characteristics, an external resonator (6), and a wavelength-variable filter (4). ?f is divided into one or more regions. The following conditions are satisfied for one ?fi region: mj=(j×?ffs)/?fFP where ?ffs: a period of the wavelength selection filter, ?fFP: a Fabry-Perot mode interval dependent on a length of the external resonator, j: an integer not smaller than 1 and not larger than (?fi/?ffs). A coefficient Mj is an integer obtained by rounding off the first digit after decimal point of the coefficient mj. A coefficient Ni,j is an integer obtained by discarding the first digit after decimal point of ?fi/(j×?ffs). In this regard, a relation of (|Ni,j×2?(Mj?mj)|<?/2) is satisfied for one j.
    Type: Grant
    Filed: May 25, 2005
    Date of Patent: February 2, 2010
    Assignee: NEC Corporation
    Inventors: Kenji Mizutani, Koji Kudo, Kenji Sato, Jan De Merlier
  • Patent number: 7656036
    Abstract: A semiconductor circuit in which low impedance characteristics required for a decoupling circuit are ensured up to a band of several hundreds of MHz or above in the situation where digital circuits are rushing into GHz age, and a semiconductor circuit exhibiting low impedance characteristics even in a band of several hundreds of MHz or above. A line element comprising a power supply line and a ground line or a ground plane arranged oppositely through a dielectric, characterized in that a dielectric covering the line element is provided.
    Type: Grant
    Filed: February 13, 2004
    Date of Patent: February 2, 2010
    Assignee: NEC Corporation
    Inventors: Takashi Nakano, Hirokazu Tohya
  • Patent number: 7656346
    Abstract: A millimeter wave image processor, capable of performing imaging by matching and filtering while considering a spherical wave on an antenna face in a near field, is provided. The processor includes: a T-antenna which receives a radio wave emitted by a target; an A/D converter which A/D converts signals received by the T-antenna; a correlation processing unit which performs correlation processing to a combination of signals of a horizontal conversion output and a vertical conversion output among A/D converted data; and an imaging processor which correlates a reference function in which a received signal is generated theoretically on an assumption that the target is at a position of a focused distance and a received signal of a spherical wave received by the T-antenna for each pixel in the field of view to thereby create an image of the target.
    Type: Grant
    Filed: March 21, 2007
    Date of Patent: February 2, 2010
    Assignee: NEC Corporation
    Inventor: Hitoshi Nohmi
  • Patent number: 7657251
    Abstract: A mobile terminal prompts a user to make a voice message upon detection of an abnormally interrupted call, and records the message. Then, the mobile terminal converts the recorded voice data and a telephone number of a communication partner's terminal into a format suitable for data communication. Next, the mobile terminal transmits the converted data to a mobile data communication relay base station. The mobile data communication relay base station forwards the converted data to a data communication network storage device via a data communication network. A stored message transmitter retrieves the telephone number of the communication partner's terminal from the data communication network storage device and calls the communication partner's terminal via a fixed telephone network.
    Type: Grant
    Filed: February 23, 2005
    Date of Patent: February 2, 2010
    Assignee: NEC Corporation
    Inventor: Toshiya Okabe
  • Patent number: 7656215
    Abstract: A clock generator circuit provides an output clock without an abnormal waveform pulse which causes faulty operation in other function circuits. A phase synchronizing circuit outputs a second clock synchronized with a first clock. A selector signal generator circuit outputs a switching signal when detecting the abnormal waveform pulse in the second clock. A selector outputs the first clock instead of the second clock as the output clock based on the switching signal. A delay circuit delays the second clock input to the selector so that the selector switches the output clock from the second clock to the first clock before the abnormal waveform pulse is input to the selector.
    Type: Grant
    Filed: March 4, 2008
    Date of Patent: February 2, 2010
    Assignee: NEC Electronics Corporation
    Inventor: Nobuhiro Tsuji
  • Publication number: 20100020313
    Abstract: A tilt inspection apparatus which detects tilt of an object to be observed with respect to a placement surface on which the object is placed, including: a light source which irradiates light or projects an image onto the object to be observed; a light shield plate which has a first slit extended in a first direction and a second slit extended in a second direction normal to the first direction, and is disposed between the light source and the object to be observed; and a carriage mechanism which supports the light shield plate so as to be rotatable in the in-plane direction of the light shield plate, and fixes the light shield plate while aligning the first slit normal to the placement surface is provided.
    Type: Application
    Filed: October 1, 2009
    Publication date: January 28, 2010
    Applicant: NEC Electronics Corporation
    Inventor: Tooru KUMAMOTO
  • Publication number: 20100021049
    Abstract: A method of analyzing of a semiconductor integrated circuit includes inspecting a physical defect in a semiconductor wafer, subjecting the semiconductor integrated circuit chip to a logic test and extracting a malfunctioning chip, analyzing a detected signal observed from the malfunctioning chip by an analyzer, obtaining the layer and coordinates of a circuit related the detected signal, collating the physical defect with the circuit, and identifying the physical defect associated with the circuit. The layer and coordinates of the circuit is extracted using design data. An inspection step identifying information is collated with the layer of the circuit, and an in-chip coordinates of the physical defect is collated with the coordinated of the circuit.
    Type: Application
    Filed: July 23, 2009
    Publication date: January 28, 2010
    Applicant: NEC Electronics Corporation
    Inventor: Masafumi NIKAIDO
  • Publication number: 20100023839
    Abstract: Provided is a memory system that can specify a cause of an error. According to the memory system, during writing, when write data is looped back, and the write data is an error, the error has occurred between first processing units (51 to 53) or second processing units (56 to 58) and an input/output unit (60). Thus, whether the error has occurred between the first processing units (51 to 53) or the second processing units (56 to 58) and the input/output unit (60), or in a memory (8) can be specified.
    Type: Application
    Filed: July 22, 2009
    Publication date: January 28, 2010
    Applicant: NEC Electronics Corporation
    Inventor: Masakatsu Uneme
  • Publication number: 20100019275
    Abstract: A semiconductor photo detector of the present invention includes a layer structure, having a selective etching layer of a first-type conductivity, a field-relaxing layer of the first-type conductivity, a multiplier layer, a field-relaxing layer of a second-type conductivity, a light absorption layer of the second-type conductivity, a selective etching layer of the second-type conductivity, a buffer layer of the second-type conductivity, a contact layer of the second-type conductivity, and an electrode in the side of the second-type conductivity, which are sequentially deposited over a semiconductor substrate, and having a second mesa formed on the semiconductor substrate and a first mesa formed on the second mesa, wherein the first mesa includes the buffer layer of the second-type conductivity, the contact layer of the second-type conductivity, and the electrode in the side of the second-type conductivity, wherein the second mesa includes the layer of the first-type conductivity, the multiplier layer, the lig
    Type: Application
    Filed: January 18, 2008
    Publication date: January 28, 2010
    Applicant: NEC CORPORATION
    Inventor: Takeshi Nakata
  • Publication number: 20100023329
    Abstract: Speech recognition of even a speaker who uses a speech recognition system is enabled by using an extended recognition dictionary suited to the speaker without requiring any previous learning using an utterance label corresponding to the speech of the speaker.
    Type: Application
    Filed: January 15, 2008
    Publication date: January 28, 2010
    Applicant: NEC CORPORATION
    Inventor: Yoshifumi Onishi
  • Publication number: 20100020283
    Abstract: In an in-plane switching mode liquid crystal display device, a liquid crystal layer is interposed between a first substrate and a second substrate. The first substrate is provided with a first electrode member having a comb-tooth-like portion and a second electrode member so as to generate an electric field between the first electrode member and the second electrode member. Further, a protruded electrode member is provided so as to be branched from at least one of a portion short of a tip end portion and a portion short of a base portion of the comb-tooth-like portion so as to form a branched shape of an L-shaped portion in an integrated planar shape with combination of the protruded electrode member and one of the tip end portion and the base portion.
    Type: Application
    Filed: June 30, 2009
    Publication date: January 28, 2010
    Applicant: NEC LCD Techologies, Ltd.
    Inventor: Teruaki SUZUKI
  • Publication number: 20100019175
    Abstract: A manufacturing method of a semiconductor thin film decreases the number of and controls the direction of crystal grain boundaries. A first beam irradiated onto amorphous silicon produces a radial temperature gradient centered on a tip of a concave. This forms a crystal grain in the concave tip, which grows in both the beam width and length direction. After the second beam and on, growth is repeated using the crystal grain formed in the tip of the concave as the seed. This forms a band-form crystal grain with a wider than that of the conventional narrow-line beam, with the tip of the concave being the start point. Further, by setting the periphery of the concave pattern to be equal or less than the crystal grain diameter in the direction vertical to the beam scanning direction, it is possible to form the band-form crystal grain being lined continuously.
    Type: Application
    Filed: September 17, 2009
    Publication date: January 28, 2010
    Applicant: NEC CORPORATION
    Inventor: Mitsuru NAKATA
  • Publication number: 20100019839
    Abstract: A semiconductor integrated circuit includes a flip-flop circuit, a capacitive element, and a switch circuit. The switch circuit includes a first switch circuit which couples the capacitive element to two nodes of the flip-flop circuit at a first timing, and a second switch circuit which short-circuits ends of the capacitive element connected to the two nodes at a second timing different from the first timing.
    Type: Application
    Filed: July 21, 2009
    Publication date: January 28, 2010
    Applicant: NEC ELECTRONICS CORPORATION
    Inventor: Junji Monden
  • Publication number: 20100020664
    Abstract: A recording strategy for specifying an output waveform of a laser beam to be applied to a recording layer of an information recording medium is adjusted by the following recording strategy adjusting method. The recording strategy adjusting method includes a base strategy determining step of determining a basic recording strategy; a first top pulse width setting step wherein the shortest mark in a pattern row formed on the recording layer of the information recording medium is specified after the base strategy determining step, and the width of a top pulse, i.e., a pulse for recording the shortest mark, is set; and a step of adjusting a power, including a recording power and a bias power, for recording.
    Type: Application
    Filed: January 18, 2008
    Publication date: January 28, 2010
    Applicant: NEC CORPORATION
    Inventors: Masaki Nakano, Masatsugu Ogawa