| Patent application number | Description | Published |
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| 20080211597 | Filter Circuit - A filter circuit including first and second real filters of a zero-IF scheme. The first and second real filters receive an I component and a Q component separated from a reception signal, respectively; and a switch section for producing a complex filter by switchably connecting the first and second real filters through interconnection elements. The switch section further receiving a switching signal for connecting the first and second real filters, thereby switching from the zero-IF scheme to a low-IF scheme. | 09-04-2008 |
| 20080265987 | SIGNAL EXTRACTION CIRCUIT - A shunt regulator performs a control so as to stabilize a voltage obtained by rectifying the radio frequency signal output from an antenna unit at a prescribed voltage value. A signal extraction unit extracts the information signal from a bypass current sent by the shunt regulator for the control when the voltage fluctuates. | 10-30-2008 |
| 20090184768 | Attenuation Compensating Circuit - An attenuation compensating circuit includes a detector and a stabilizer. The detector has a dummy capacitor corresponding to a capacitor connected to an input terminal of an amplifier and, by detecting the degree of attenuation of a dummy signal passing through the dummy capacitor, detects the degree of attenuation when a signal to be amplified passes through the capacitor connected to the amplifier. The stabilizer has two dummy amplifiers and causes a voltage difference between the input voltages of the dummy amplifiers, where the voltage difference corresponds to the degree of attenuation detected by the detector. The stabilizer controls a bias voltage for setting gain of the dummy amplifier so that a product of the voltage difference of the input voltage and the gain of the dummy amplifier is equivalent to the difference of the voltages output by the dummy amplifiers and supplies the bias voltage to the amplifier. | 07-23-2009 |
| 20090238103 | WIRELESS COMMUNICATION DEVICE - A wireless communication device capable of restraining interference and thereby improving transmission quality. A wireless controller includes a wireless communication interface, and a baseband controller includes a baseband communication interface for controlling the transfer/reception of baseband signals, a logic circuit, and a memory. The wireless communication interface and the baseband communication interface are connected to each other by a communication line, and the memory stores, with respect to individual radio frequencies of a receive radio signal, bit rates for the communication line at which interference caused by noise produced around the communication line is minimized. When notified of a receive radio frequency, the logic circuit reads, from the memory, an optimum bit rate which corresponds to the receive radio frequency and at which the interference is minimized, and sets the optimum bit rate in the wireless communication interface and the baseband communication interface. | 09-24-2009 |
| 20090243700 | MIXER CIRCUIT FOR FREQUENCY MIXING OF DIFFERENTIAL SIGNALS - A mixer circuit designed for low voltage operation with rail-to-rail local signals. First and second transistors form a first input section to produce a first signal. Third and fourth transistors form a second input section to produce a second signal. Fifth and sixth transistors form a third input section to produce a third signal. Seventh and eighth transistors form a fourth input section to produce a fourth signal. A differential RF input signal drives the first, third, fifth, and seventh transistors, while a differential local signal drives the second, fourth, sixth, and eighth transistors. Ninth and tenth transistors form a positive output section to produce a non-inverted output signal. Eleventh and twelfth transistors form a negative output section to produce an inverted output signal. The ninth to twelfth transistors are driven by the first to fourth signals, respectively. | 10-01-2009 |
| 20090243716 | DEMODULATION CIRCUIT - A demodulation circuit, including: an input terminal (IN) inputting a current amplitude modulated signal; a first transistor ( | 10-01-2009 |
| 20100109785 | AMPLIFIER CIRCUIT - An amplifier circuit includes a first amplifying section for amplifying a signal, and a second amplifying section for amplifying the signal amplified by the first amplifying section. A capacitive element connects the output of the first amplifying section to the input of the second amplifying section. When power is applied to the amplifier circuit, a bypass circuit causes the electric current flowing from a first power supply toward the input of the second amplifying section through the first amplifying section and the capacitive element to be bypassed to a second power supply. | 05-06-2010 |
| Patent application number | Description | Published |
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| 20090146188 | SEMICONDUCTOR STORAGE DEVICE AND MANUFACTURING METHOD THEREOF - A semiconductor storage device includes a plurality of integrated memory cells. Each cell includes a first inverter having a first driver transistor and a first load transistor which are formed on a semiconductor substrate in order to form a first storage node, a second inverter having a second driver transistor and a second load transistor which are formed on the semiconductor substrate in order to form a second storage node, a first transfer transistor connected between the first storage node and a bit line to serve as a transistor connecting the memory cell to the bit line, and a second transfer transistor connected between the second storage node and a complementary-bit line to serve as a transistor connecting the memory cell to the complementary-bit line. | 06-11-2009 |
| 20090288728 | Multi-layer tube - A multi-layer tube of thermoplastic resin exhibiting barrier capacity, flexibility, transparency, kink resistance and chemical resistance especially used to transport and supply various types of liquids, which multi-layer tube realizes high steam barrier performance and excels co-extrusion forming performance. There is provided a multi-layer tube comprising at least a flexible elastomer layer, a fluoro resin layer excelling in steam barrier performance and chemical stability and an adhesive resin layer disposed for bonding the layers. This multi-layer tube can find application in medical use including fluid infusion or blood transfusion tubes, use in automobile including cleaning liquid or fuel liquid tubes and use in machine instruments including ink supply tubes of printer units provided in printer, various measuring equipments and observation equipments, etc. | 11-26-2009 |
| 20100086755 | OXYGEN BARRIER MULTILAYER STRUCTURE, AND MULTILAYER PACKAGING MATERIAL AND MULTILAYER CONTAINER USING SAME - An oxygen barrier multilayer material for containers is developed that selectively shields oxygen from the outside and also shields volatile substances by-produced by oxidation reaction. Provided are a selective oxygen absorbent multilayer structure produced by co-extrusion having an oxygen absorbing layer containing an oxygen absorbing resin composition, an inner barrier layer (A) and an outer barrier layer (C) arranged inside and outside the oxygen absorbing layer, in which the oxygen transmission rate of the outer barrier layer (C) is smaller than the oxygen transmission rate of the inner barrier layer (A), and a multilayer packaging material and a multilayer container, using the selective oxygen absorbent multilayer structure. | 04-08-2010 |
| 20110270480 | BATTERY MODULE, ELECTRIC VEHICLE, AUTHENTICATION APPARATUS, AND DISCHARGING CONTROL METHOD FOR BATTERY MODULE - There is provided a battery module including: a power storage unit storing power; a first authentication unit carrying out first authentication via a first authentication route; a second authentication unit carrying out second authentication via a second authentication route; and a discharging control unit controlling discharging from the power storage unit to an external appliance, wherein the first authentication unit is operable, when the first authentication has succeeded, to share key information to be used in the second authentication with an authentication party for the second authentication, the second authentication unit carries out the second authentication using the key information shared with the authentication party, and the discharging control unit is operable, when the second authentication has succeeded, to permit discharging from the power storage unit. | 11-03-2011 |
