Patent application number | Description | Published |
20090267842 | PORTABLE WIRELESS APPARATUS - It is an object to relieve deterioration in efficiency due to the influence electromagnetic coupling between antennas and to obtain a high diversity gain, and a high transmission speed and a large communication capacity in an MIMO system. In a portable wireless machine including two types of antennas | 10-29-2009 |
20100240423 | PORTABLE WIRELESS UNIT - A purpose of the present invention is to provide a portable wireless unit capable of suppressing a deterioration of antenna performance, which is caused by electromagnetic mutual effects occurred between two antenna elements, and capable of achieving an improving effect of a high diversity gain, and also capable of realizing a designing characteristic and an operative characteristic in a compatible manner. While an upper case ( | 09-23-2010 |
20110026941 | VARIABLE DISPERSION COMPENSATION DEVICE - A dispersion compensation device includes a variable dispersion compensator configured to subject an input optical signal to dispersion compensation, an optical receiver configured to convert an optical signal subjected to dispersion compensation into an electrical signal, recover a clock signal and a received data signal from the electrical signal, and output clock lock information indicating whether the clock signal is locked to the electrical signal, a signal processor configured to output bit error rate information on the received data signal, and a controller configured to variably control a dispersion compensation value of the variable dispersion compensator based on the bit error rate information and the clock lock information. | 02-03-2011 |
20110032161 | MOBILE TERMINAL DEVICE - In a mobile terminal device, a hinge member and a conductive member provided on a chassis and functioning as an antenna are electrically contacted with each other through the slide operation of a chassis and thereby can be configured as an antenna usable in various use situations without providing a separate antenna. Consequently, the mobile terminal device is provided, the manufacture cost of which can be suppressed, the size and thickness of which can be reduced, and which can prevent antenna characteristics from degrading because the antenna is not provided at a portion gripped by a hand. In the device, a first chassis ( | 02-10-2011 |
20110260933 | MOBILE RADIO APPARATUS - A mobile radio apparatus that can prevent degradation of the antenna characteristic if three or more antenna elements are included is provided. | 10-27-2011 |
20110316758 | PORTABLE RADIO - An object of the present invention is to provide a portable radio apparatus that obtains a high antenna performance without limiting the degree of freedom in the exterior and design of a main body of portable radio apparatus. A portable radio apparatus ( | 12-29-2011 |
Patent application number | Description | Published |
20090324218 | Optical signal detection method, and light receiving apparatus using the same - A signal detection method used in an optical receiver apparatus detects the variation of an optical input level from the presence or absence of a clock signal and appropriately controls a dispersion compensator, thereby enabling the presence or absence of an input signal to be correctly determined. The signal detection method includes: detecting the level of input light of an optical amplifier, storing the level of the detected input light, comparing the level of the stored previous input light with the level of current input light, detecting the level variation of the input light by the comparison to detect the state change of the presence or absence of an optical signal, performing a dispersion compensation on the input light, and extracting a clock from an optical input. When the level variation of the input light is detected, the presence or absence of the optical signal of the input light is determined from the presence or absence of the clock signal. When the clock signal is not extracted, the dispersion amount is swept. | 12-31-2009 |
20100135672 | OPTICAL RECEPTION DEVICE, OPTICAL RECEIVING METHOD, AND OPTICAL TRANSMISSION APPARATUS - An optical reception device is provided. The optical reception device includes a filtering unit that receives input light of predetermined power, filters the input light by use of filter characteristics where the degree of attenuation of the power of an optical signal of predetermined frequency is lower than the degree of attenuation of the power of an optical signal of another frequency, and supplies an output light; and a determining unit that compares a value relevant to the power of the output light supplied by the filtering unit, with a threshold, and determines whether the input light contains signal light. | 06-03-2010 |
20100303459 | DISPERSION COMPENSATING APPARATUS, DISPERSION COMPENSATING METHOD, OPTICAL RECEIVING APPARATUS, AND OPTICAL RECEIVING METHOD - A dispersion compensating apparatus includes a tunable dispersion compensator that dispersion-compensates an optical signal using a group delay property that is asymmetrical in bands outside an effective band; a set device that sets a dispersion compensation amount in the tunable dispersion compensator; and a shifter that shifts a central frequency of the effective band of the tunable dispersion compensator, based on the dispersion compensation amount set by the set device. | 12-02-2010 |
20100322619 | OPTICAL TRANSMISSION APPARATUS AND FAULT DETECTION METHOD - An optical transmission apparatus includes a non-reciprocal device including first to second ports, an optical signal input from the first port being provided to the second port, an optical signal input from the second port being provided to the first port, a dispersion compensator that is coupled to the first port of the non-reciprocal device and that conducts given processing to an optical signal input from the first port of the non-reciprocal device to provide the optical signal subjected to the given processing to the second port of the non-reciprocal device, a first monitor, a second monitor, and a fault determination device that compares a value monitored by the first monitor with a value monitored by the second monitor to determine a connection failure at the first and/or second ports of the non-reciprocal device and/or a connection state of the dispersion compensator. | 12-23-2010 |
20110142456 | APPARATUS AND METHOD FOR DETECTING SIGNAL BEAM - A signal-light detection apparatus includes a polarization extractor that extracts a polarization component that is substantially in parallel with a specified axial direction from an input light, a polarization rotator that changes a relative angle between a direction of polarization of the input light and an axial direction of the polarization extractor, a photodetector that detects an optical power of the polarization component extracted by the polarization extractor, and a determination device that determines whether the input light includes a signal component, based on a variation in the optical power detected by the photodetector. | 06-16-2011 |
Patent application number | Description | Published |
20090186262 | BATTERY PACK AND WIRING SUBSTRATE - A battery pack includes a pack body that includes a battery cell and that has an external shape substantially symmetric with respect to the horizontal and vertical axes, viewed from a front face on which terminals are arranged, and a terminal unit on the front face. The terminal unit includes a positive terminal, a negative terminal, a control terminal, and a temperature detection terminal for outputting temperature data. The positive terminal and the negative terminal are arranged on one side with respect to a center line in the width direction of the pack body. The control terminal is arranged symmetrically to the temperature detection terminal with respect to the center line in the width direction of the pack body. | 07-23-2009 |
20100253285 | BATTERY PACK AND CHARGING METHOD - A battery pack includes one or a plurality of secondary batteries that are connected with each other; a positive pole terminal and a negative pole terminal to which external equipment is connected; a variable resistance portion which is connected between a positive pole of the secondary battery and the positive pole terminal or between a negative pole of the secondary battery and the negative pole terminal and resistance values of which are changed; a battery voltage measuring portion for measuring the voltage of the secondary battery; and a controlling portion for controlling the resistance value of the variable resistance portion based on the measurement result of the battery voltage measuring portion. | 10-07-2010 |
20140037993 | BATTERY PACK AND WIRING SUBSTRATE - A battery pack includes a pack body that includes a battery cell and that has an external shape substantially symmetric with respect to the horizontal and vertical axes, viewed from a front face on which terminals are arranged, and a terminal unit on the front face. The terminal unit includes a positive terminal, a negative terminal, a control terminal, and a temperature detection terminal for outputting temperature data. The positive terminal and the negative terminal are arranged on one side with respect to a center line in the width direction of the pack body. The control terminal is arranged symmetrically to the temperature detection terminal with respect to the center line in the width direction of the pack body. | 02-06-2014 |
20140191590 | ELECTRICAL APPARATUS - An electrical apparatus is provided which can reduce, when it is shipped in a state in which a secondary battery is built therein, power consumption before a user starts to use the electrical apparatus first. The electrical apparatus includes a secondary battery, a load which operates by power supplied from the secondary battery, and a switch element disposed between the secondary battery and the load. The switch element remains in an off state until a user starts use of the electrical apparatus. | 07-10-2014 |
20140248530 | BATTERY PACK AND WIRING SUBSTRATE - A battery pack includes a pack body that includes a battery cell and that has an external shape substantially symmetric with respect to the horizontal and vertical axes, viewed from a front face on which terminals are arranged, and a terminal unit on the front face. The terminal unit includes a positive terminal, a negative terminal, a control terminal, and a temperature detection terminal for outputting temperature data. The positive terminal and the negative terminal are arranged on one side with respect to a center line in the width direction of the pack body. The control terminal is arranged symmetrically to the temperature detection terminal with respect to the center line in the width direction of the pack body. | 09-04-2014 |
Patent application number | Description | Published |
20090118549 | Process for Production of Acrolein - There is provided a process for producing acrolein from glycerin, exhibiting a suppressed decrease in the yield of acrolein with time. In the process for producing acrolein by dehydrating glycerin in the presence of a catalyst containing a metal phosphate, one, or two or more, metal phosphates are used, which are selected from aluminum salts, zirconium salts, manganese salts, alkali metal salts (provided that the alkali metal is sodium, potassium, or cesium, and the ratio between the mole number (M) of the alkali metal and the mole number (P) of phosphoric acid (i.e., M/P ratio) in the metal phosphate is 2.0 or lower), alkali earth metal salts (provided that the ratio between the mole number (M) of the alkali earth metal and the mole number (P) of phosphoric acid (i.e., M/P ratio) in the metal phosphate is 1.0 or lower), and the like. | 05-07-2009 |
20100063233 | Method for producing acrylic acid - There is provided a novel process for producing acrylic acid by which acrylic acid can be obtained from a raw material independent of petroleum. The process for producing acrylic acid according to the present invention comprises the steps of: applying a dehydration reaction to glycerol as a raw material in a gas phase; and then applying a gas phase oxidation reaction to a gaseous reaction product formed by the dehydration reaction. | 03-11-2010 |
20100113838 | PROCESS FOR PRODUCING ACROLEIN - There is provided a process for producing acrolein, which makes it possible to obtain acrolein in high yield by dehydration of glycerin. Glycerin is allowed to coexist with a catalyst containing a rare earth metal salt crystal of phosphoric acid, thereby dehydrating the glycerin, wherein the crystal is obtained by calcining a solid which is formed by allowing a liquid containing water and a hydroxide of the rare earth metal and/or a dehydration condensate of the hydroxide to contain phosphate ions. | 05-06-2010 |