Nec Corporation

Resonac Corporation

Masahiko Osaka

Satoshi Shikata

Aozora Hamano

Hideo Maeda

Chio Ishihara

Shohei Yamaguchi

Takashi Inagaki

Hidetoshi Inoue

Yuma Takeuchi

Tomomasa Sano

Hinano Tanaka

Kazumasa Takeuchi

Hiroki Sekiya

Lighting equipment for authentication

Terminal for authentication

A compound comprises a resin composition containing an epoxy resin, a phenol resin, a wax, and an imidazole compound, and a metal element-containing powder, wherein the epoxy resin comprises a crystalline epoxy resin, the wax comprises a montanic acid ester, and the content of the metal element-containing powder is 90 mass % or more based on the total mass of the compound.

Compound and tablet

A cellular phone of the present invention comprises upper housingand lower housingconnected together for displacement relative to each other. Upper housingincorporates liquid crystal unitwhich includes light sourceand liquid crystal panelilluminated by light emitted from light source. Lower housingincorporates an input device. Upper housingcomprises slitwhich communicates with the interior and exterior of upper housing, and light guide means for guiding light emitted from light sourceto slit. Operating unitof the input device arranged on lower housingis illuminated by light which is guided by the light guide means and which is emitted to the outside of upper housingthrough slit

Cellular phone

A desktop holder includes a connector to be connected to a connector of a portable terminal inserted into an insertion inlet, a connector to be connected to a memory card inserted into a memory card slot, a cable which connects connectors, and a connector which connects an AC adaptor, thereby enabling a battery pack to be charged by the supply of charging DC voltage supplied from the AC adaptor to the portable terminal, as well as enabling the portable terminal to read and write from/to the memory card by key operation of the portable terminal.

Desktop holder and portable terminal system

Electric fields A, B and C are inputted to an antenna , and corresponding digital values AAD, BAD and CAD obtained from an A/D converter are stored in memories A , B and D , respectively. An operational circuit obtains a non-linearity corrected input power level conversion table from the input power levels of the electric fields A, B and C and the corresponding digital values AAD, BAD and CAD, and stores the obtained table in a memory C . The electric field C is the electric field under which the receiver circuit is not linearly operated. A controller reads out the input power level at the time of input of each electric field from the memory C , and displays the read-out input power level on a input power level display . Thus, adverse effects, on linearity, of saturation caused by high input power level electric field input to an antenna or of noise at the time of low input power level electric field input are improved.

Radio receiver for displaying input level and display method thereof

To switch a frequency of an output signal of a voltage controlled oscillator from a first frequency to a second frequency, a controller provides to a variable frequency divider such a frequency divisor that the voltage controlled oscillator produces a signal having a predetermined frequency ranging between the first and second frequencies. When the detected frequency of the signal output by the voltage controlled oscillator reaches a predetermined frequency, the controller changes the frequency divisor provided to the variable frequency divider to such a frequency divisor that the voltage controlled oscillator produces a signal having the second frequency.

PLL frequency synthesizer employing plural control frequencies to

A portable radio communication apparatus has a main unit and a detachable and chargeable battery pack. The main unit has a power amplifier (power module) for sending out high frequency power to a whip antenna for transmitting/receiving use and a transmit/receive signal processing section for signal processing in transmission and reception. The battery pack further has a nickel hydride battery of a layered structure, which is low in internal resistance and outputs a high voltage, for supplying power to the transmission power amplifier which consumes a large current, and a low-voltage lithium ion battery, which is high in internal resistance, for supplying power to the transmit/receive signal processing section which consumes a relatively small current. This configuration makes unnecessary the otherwise required stabilizing circuit for supplying a low voltage to the transmit/receive signal processing section. At the same time, the voltage fluctuations of the nickel metal hydride battery when the power amplifier begins transmission or at any other time would not affect the voltage from the lithium ion battery.

Portable radio apparatus having batteries for supplying a plurality of

A quadrature modulation circuit is comprised of two frequency generators which generate a first frequency signal and a second frequency signal, respectively, and a mixer which mixes the first frequency signal and the second frequency signal to generate the carrier wave whose frequency is different from both the first frequency and the second frequency. By the quadrature modulation of this carrier wave according to a baseband signal, a transmission wave can be obtained. Since the first frequency differs from the carrier frequency and the second frequency differs from both the carrier frequency and the first frequency, the output signals of the frequency generators are not affected by the transmission wave.

Quadrature modulation circuit for use in a radio transmitter

A quadrature modulation circuit incorporated in a radio communication apparatus and selectively implementing transmission and reception in an analog mode or in a digital mode with a single circuitry. A VCO (Voltage Controlled Oscillator) or a frequency synthesizer including a VCO has an analog modulation capability and replaces a local oscillator included in a conventional modulator circuit for feeding an output thereof to a digital modulator.

Growing community of inventors

Tokyo, Japan

Masahiko Osaka