Assignee: Nec Corporation

Location: JP
No. of patents: 105

Number	Title	Issue Date
7904085	Mobile device and radio interface arrangement method A transmitter/receiver 101 on a mobile body 10 utilizes a plurality of antennas 100. It is assumed that a plurality of the antennas 100 are distributed and arranged in a moving direction of the mobile body, and the antennas at both ends a...	03/08/2011
7902938	Data transmitter, data transmission line, and data transmission method A data transmitter uses a transmission line including a ground conductor (305), a signal conductor (201), and an insulating material (3) which insulates them from each other. The insulating material includes a dielectric (320) exhibiting ...	03/08/2011
7894127	Optical transmission system and optical amplification method used in the system At an optical transmission system that uses plural light sources for Raman amplification, even when a failure occurred in a pumping light source in one of the light sources for Raman amplification, the signal light output level and its wavelength characteristic are ...	02/22/2011
7883911	Method for fabricating photodiodes A Schottky photodiode includes a semiconductor layer and a conductive film provided in contact with the semiconductor layer. The conductive film has an aperture and a periodic structure provided around said aperture for producing a resonant state by an excited surfa...	02/08/2011
7876294	Image display and its control method An image display apparatus comprises a pixel having a drive transistor and a pixel display element which are connected in series between a first power line and a second power line, a holding capacitor connected to a gate electrode of the drive transistor, and a sele...	01/25/2011
7870439	Fault tolerant multi-node computing system using periodically fetched configuration status data to detect an abnormal node A fault tolerant computing system comprises a plurality of processing nodes interconnected by a communication medium for parallel-running identical application programs. A fault detector is connected to the processing nodes via the communication medium for periodica...	01/11/2011
7868257	Via transmission lines for multilayer printed circuit boards A via transmission line for a multilayer printed circuit board (PCB) in which a wave guiding channel is formed by a signal via or a number of signal vias, an assembly of ground vias surrounding the signal via or corresponding number of coupled signal vias, a set of ...	01/11/2011
7860259	Piezoelectric acoustic element, acoustic device, and portable terminal device A piezoelectric acoustic element 1 of the present invention comprising a hollow casing 5 having a opening 3, a piezoelectric element 7 that is disposed in said casing 5 and bends when a voltage is applied thereto, and diaphragm ...	12/28/2010
7852558	Three-dimensional image display device, portable terminal device, display panel and fly eye lens In a three-dimensional image display device for displaying color three-dimensional images, a fly eye lens, a display panel, and a light source are provided in this order from the observer side. A display panel has four pixels arrayed in a (2×2) matrix correlated wi...	12/14/2010
7844220	Headset, portable communication system, and headset calling method Disclosed is a headset which includes a radio communication unit and control unit. The radio communication unit has 2 communication mode. The first mode is used for communication with an access point connected to a fixed network. The second mode is used for communic...	11/30/2010
7820917	Circuit board A circuit board includes a plurality of through holes into which a plurality of leads of one electronic devices are inserted and soldered with lead free solder. Among these through holes, the volume of through hole into which the outermost end lead of leads of the e...	10/26/2010
7808416	Output circuit, digital analog circuit and display device A selection circuit receives a plural number (m) of respective different values of voltages as reference voltages to select and output two voltages. An amplifier receives at two input terminals the two reference voltages output from the selection circuit to output a...	10/05/2010
7801566	Mobile information terminal having operation keys and a display on opposite sides A mobile information terminal has a front surface on which a display surface of a display device is arranged and a rear surface on which a plurality of operation keys are arranged. The mobile information terminal further has a half-depressing sensor for detecting th...	09/21/2010
7787348	Optical head apparatus and optical information recording or reproducing apparatus Light emitted from a light source and having a wavelength of 400 nm is reflected by a beam splitter (BS), and converged on a disk according to a next-generation standard. Reflection light therefrom passes through the BS and is received by a photodetector. Light emit...	08/31/2010
7778443	Image focusing device with motor An illumination unit 6 illuminates a scene object (i.e., mail) 2 moved in a predetermined direction by a transport means (transport conveyor) 1, the imaging distance up to the scene object 2 is detected before imaging, and auto-focusing i...	08/17/2010
7769206	Finger/palm print image processing system and finger/palm print image processing method A finger/palm print image processing system includes a frequency component analysis unit (11) and a frequency component judgment unit (12). The frequency component analysis unit (11) performs a frequency analysis for each of the small regions in...	08/03/2010
7764480	Electronic device, and circuit and method for protecting the same A mobile terminal uses a battery as a power source, and has a battery protection circuit for protecting the battery. A control circuit of the mobile terminal detects a voltage value or a current value of a predetermined electronic circuit such as a power amplifier, ...	07/27/2010
7763979	Organic insulating film, manufacturing method thereof, semiconductor device using such organic insulating film and manufacturing method thereof The dielectric constants of SiC and SiCN that are currently the subjects of much investigation are both 4.5 to 5 or so and that of SiOC, 2.8 to 3.0 or so. With further miniaturization of the interconnection size and the spacing of interconnections brought about by t...	07/27/2010
7752490	Memory system having a hot-swap function A memory system includes normal memory modules serially connected, and a backup memory module, and a switch circuit for replacing a failed one of the normal memory modules by the backup memory module. The switch circuit inserts the backup memory module in the serial...	07/06/2010
7752399	Exclusion control method and information processing apparatus Disclosed is an information processing apparatus that has an update procedure semaphore, and a generation management information as management information of a shared data area that requires exclusion control. The generation management information specifies one item...	07/06/2010
7742464	System and method for remotely controlling a communication terminal When a setting in an IP telephone terminal is to be changed, a remote resetter registers subscriber information corresponding to this IP telephone terminal and places a call to this IP telephone terminal. The IP telephone terminal sends a setup request to a setup se...	06/22/2010
7728366	Photodiode and method for fabricating same A Schottky photodiode includes a semiconductor layer and a conductive film provided in contact with the semiconductor layer. The conductive film has an aperture and a periodic structure provided around said aperture for producing a resonant state by an excited surfa...	06/01/2010
7724558	Magnetic signal transmission line A magnetic signal transmission line includes a one-dimensional array of a plurality of single-magnetization domains each formed in a ferromagnetic body. The anisotropic energy of the single-magnetization domains is zero to 120% of the interactive energy acting betwe...	05/25/2010
7715818	System for controlling additional function of communications terminal and the communications terminal A technology is disclosed for providing an additional function control system which permits a carrier to select whether or not an additional function possessed by a communications terminal can be made available. A communications network is connected to a communicati...	05/11/2010
7715422	Half-duplex radio communication method, program and system thereof A half-duplex radio communication method, a program and a system enabling multicasting, for example, in an emergency for radio communication terminals belonging to different carrier systems if they meet designated condition while saving an operator the bother of inp...	05/11/2010
7715296	Optical head device and optical recording and reproducing apparatus An optical head device and an optical recording and reproducing apparatus using this optical head device, which can record information and reproduce the recorded information at any of optical recording media, such as a next generation optical recording medium, in wh...	05/11/2010
7709063	Remote plasma apparatus for processing substrate with two types of gases In a plasma CVD apparatus, a plate formed with a plurality of perforated holes is arranged to separate a plasma generation region and a processing region. The aperture ratio of the perforated holes to the plate is not greater than five percent. Plasma including radi...	05/04/2010
7688501	Optical transmission system and optical amplification method used in the system At an optical transmission system that uses plural light sources for Raman amplification, even when a failure occurred in a pumping light source in one of the light sources for Raman amplification, the signal light output level and its wavelength characteristic are ...	03/30/2010
7686465	Key input device A key input device includes a key input section, mode switching section, key backlight, and key backlight lighting control section. The key input section inputs characters by key input in a plurality of character input modes. The mode switching section switches a pl...	03/30/2010
7678485	Fuel cartridge, fuel cell and portable electrical appliance including fuel cell The operability of a fuel cell which uses a fuel cartridge housing a liquid fuel is improved. A fuel cartridge 1400 houses a liquid fuel 124. The fuel cartridge 1400 includes a gas-liquid separation film 1408 which divides a fuel housing ...	03/16/2010
7672646	Base station and mobile communication system utilizing the same A hardware is used to perform an SSDT processing, thereby avoiding performance degradation than otherwise would occur due to load increase caused by a software processing, and thereby realizing a base station that can instantaneously perform a transmission control a...	03/02/2010
7668155	IP telephony system, VoIP terminal, and method and program for reproducing hold sound or audible sound used therein 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 t...	02/23/2010
7667729	Multi-point conference system and multi-point conference device There are provided a multi-point conference system and a multi-point conference device capable of using an SIP terminal as a conference terminal and clearly and smoothly performing speaker switching without requesting a conference terminal to transmit an intra frame...	02/23/2010
7662519	Non-aqueous electrolyte secondary battery The present invention provides a non-aqueous electrolyte secondary battery having excellent properties such as energy density and electromotive force and being excellent in cycle life, storage property and safety. In the present invention, the non-aqueous electrolyt...	02/16/2010
7660038	Three-dimensional image display device, portable terminal device, display panel and fly eye lens In a three-dimensional image display device for displaying color three-dimensional images, a fly eye lens, a display panel, and a light source are provided in this order from the observer side. A display panel has four pixels arrayed in a (2×2) matrix correlated wi...	02/09/2010
7652623	Null-fill antenna, omni antenna, and radio communication equipment A wide-angle null-fill antenna with no null in the depression angle range, an omni antenna using the same, and radio communication equipment. A null-fill antenna comprises a first antenna array including antenna elements arranged with a prescribed point as the cente...	01/26/2010
7652565	Sensor network system, sensor node, sensor information collector, method of observing event, and program thereof In a sensor network system, sensor data having a high precision (high resolution) is collected, and congestion of a communication network and an apparatus for processing the sensor data is suppressed. A sensor node has a contribution degree calculator for calculatin...	01/26/2010
7650582	Circuit analysis device allowing more accurate analysis of signal propagation delay in circuit representation of a highly abstract level The present invention provides a circuit analysis device including: storage unit having stored therein: connection information about multiple components; delay information including information about the delay time of a discrete component and a chain delay time whic...	01/19/2010
7646628	Toggle magnetic random access memory and write method of toggle magnetic random access memory A toggle magnetic random access memory includes a first memory array, a second memory array and a controller. The first memory array includes a plurality of first memory cells including magnetoresistive elements. The second memory array includes a plurality of secon...	01/12/2010
7639167	Differential amplifier and data driver employing the differential amplifier Disclosed is a differential amplifier which includes first and second input terminals, an output terminal, first and second differential pairs, and first and second current sources for supplying currents to the first and second differential pairs. The first differen...	12/29/2009

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Assignee: Nec Corporation