Patent application number | Description | Published |
20100026469 | INFORMATION ACCESS SYSTEM, INFORMATION STORAGE DEVICE AND READER/WRITER DEVICE - An information access system includes a reader/writer device and an information storage device. In the information storage device, a receiver unit senses a carrier of an RF signal at a first frequency for detection, in a first time period occurring at time intervals, and receives an information request signal in response to detection of a carrier of an RF signal at the first frequency, and senses a carrier of an RF signal at a second frequency in response to reception of the information request signal. In the storage device, a control causes the receiver unit to sense a carrier of an RF signal at the first frequency for detection, in a second time period after a sleep time period which is shorter than the time interval, in response to non-detection by the receiver unit of a carrier of an RF signal at the first frequency in the first time period. | 02-04-2010 |
20100070980 | EVENT DETECTION SYSTEM, EVENT DETECTION METHOD, AND PROGRAM - An event detection computer system includes: a plurality of virtual machines for implementing virtual execution environments; an event detection portion for detecting an event that occurred in the virtual execution environments; and an event presentation portion for presenting, when an event occurred in the virtual execution environment not displayed on the display device being detected by the event detection portion, event information concerning the event occurred in the virtual execution environment in a virtual execution environment currently displayed on the display device. | 03-18-2010 |
20100176930 | ACTIVE TAG APPARATUS, COMMUNICATION APPARATUS AND SYSTEM - A communication apparatus and an active tag apparatus that conduct radio communication with for data transmission and reception by radio with each other are provided. A frequency designation data including local transmission frequency used for data transmission and specifying data on a frequency of a carrier sense to be carried by the active tag apparatus is provided. A controller commands the active tag apparatus to use the frequency designation data for radio communication. | 07-15-2010 |
20100225454 | WIRELESS TAG CONTROL METHOD, WIRELESS TAG, AND WIRELESS TAG CONTROL PROGRAM - A wireless tag operable to communicate with a reader/writer, the wireless tag including a sensor that measures a physical quantity and converts the measured physical quantity into an electrical signal and determines whether a pattern formed by the electrical signal corresponds to a first pattern stored in advance in a storage unit and a communicating unit that starts communication with the reader/writer when the sensor determines that the pattern corresponds to the first pattern. | 09-09-2010 |
20100271186 | LOCATION DETERMINATION SYSTEM - A reader device of a location determination system gradually changes a transmission power step by step and repeatedly sends an interrogation signal which contains therein information on a power level indicating the transmission power. A tag of the location determination system receives the interrogation signal, sends a response signal into which the information on the power level contained in the interrogation signal is incorporated. The reader device receives the response signal and sends, to a management device, the information on the power level contained in the response signal and identification information for identifying the subject reader device. The management device detects the position of the tag based on the information on the power level and the identification information thus received. | 10-28-2010 |
20110090883 | INFORMATION TERMINAL AND COMPUTER PROGRAM - An information terminal includes: a wireless communication section configured to communicate with an outside; a main functional section configured to perform an information processing operation that includes data communication with the outside, performed using the wireless communication section; a monitoring section configured to detect a state of power supply for the main functional section; and a communication control section configured to cause the wireless communication section to transmit data, preliminarily stored in a memory, to the outside when the state detected by the monitoring section corresponds to a state in which the main functional section is not capable of performing data communication using the wireless communication section. | 04-21-2011 |
20110279247 | DATA READING WRITING APPARATUS FOR ACTIVE TAG DEVICE, ACTIVE TAG DEVICE AND SYSTEM THEREOF - An active tag device includes a controller to cause the wireless communication unit to carry out data transmission at intervals of a first period, and to cause to start measurement of a second period set for determining a timing for causing a wireless communication unit to carry out carrier sense to detect data output by a reading writing apparatus, synchronously with the data transmission, and to cause the wireless communication unit to carry out the carrier sense after the second period elapsed. The reading writing apparatus includes a controller to cause to start measurement of the first period set for synchronizing with carrier sense of the active tag device after a wireless communication unit detected reception of data from the active tag device, and to cause the wireless communication unit to carry out data transmission to the active tag device during the second period after the first period elapsed. | 11-17-2011 |
20120044058 | RFID TAG AND COMMUNICATION METHOD - An RFID tag that communicates information with an RFID reader/writer includes a receiving unit that receives ID information; a memory unit that stores the ID information; a table that stores a correspondence relation between a change in the ID information and a moving direction; a determining unit that refers to the table to determine a moving direction from ID information received by the receiving unit and previously received ID information stored in the memory unit; and a signal generating unit that sends an interruption signal to a control unit driven by electric power supplied from a battery when the moving direction is determined by the determining unit, and stops generating the interruption signal when the moving direction is not determined by the determining unit. | 02-23-2012 |
20120133491 | ACTIVE CONTACTLESS INFORMATION STORAGE DEVICE, METHOD, AND INFORMATION ACCESS SYSTEM - An active contactless information storage device includes: an operation controller that determines whether mode information of the active contactless information storage device indicates a mode in which the device communicates with a reader/writer device; a carrier-sense controller that determines whether a first frequency in a first period and determines whether a second frequency in a second period, when the mode information of the active contactless information storage device indicates the mode in which the device communicates with the reader/writer device; and a command processor that performs communication with the reader/writer device when the carrier sense controller determines that the first frequency is sensed; wherein, when the mode information of the active contactless information storage device does not indicate the mode in which the active contactless information storage device communicates with the reader/writer device, the carrier-sense controller waits for a predetermined amount of time. | 05-31-2012 |
20120182131 | WIRELESS TAG DEVICE, STORAGE MEDIUM STORING CONTROL PROGRAM FOR WIRELESS TAG DEVICE, AND CONTROL METHOD FOR WIRELESS TAG DEVICE - A wireless tag device can communicate with an inquiry device includes: a local terminal storage unit storing local terminal identification information which can be discriminated from another wireless tag device; a reception detection unit detecting a signal transmitted from the inquiry device or another wireless tag device; an inquiry signal receiving unit receiving the detected inquiry signal if the inquiry signal is transmitted using a first frequency from the inquiry device; a reply signal transmitting unit transmitting a reply signal in response to the inquiry signal using a second frequency different from the first frequency; and a report signal transmitting unit transmitting a report signal including the local terminal identification information stored in the local terminal storage unit using a third frequency different from the second frequency if the inquiry signal transmitted from the inquiry device cannot be detected continuously in a specified time period in the reception detection unit. | 07-19-2012 |
20120239297 | VALUE ACQUIRING METHOD, SENSOR CONTROL APPARATUS, SENSOR CONTROL METHOD, SENSOR CONTROL MEDIUM, AND ACQUISITION INTERVAL CONTROL MEDIUM - A sensor value acquiring method employed in a computer, comprising:
| 09-20-2012 |
20120252502 | INFORMATION PROCESSING APPARATUS, CORRECTION METHOD, AND RECORDING MEDIUM - An information processing apparatus that conducts positioning on the basis of received signal strength indications obtained from access points, includes, a contact information detector that detects contact information between the information processing apparatus and a dielectric body, a recording module that stores a gain table including gain data corresponding to obtained contact information, a gain data correcting unit that extracts the gain data corresponding to the contact information obtained by the contact information detector from the gain table of the recording module and corrects gain by using the extracted gain data, and a positioning module that conducts the positioning by using the gain obtained by the correcting unit and the received signal strength indications. | 10-04-2012 |
20120295635 | INFORMATION PROCESSING APPARATUS, MANAGEMENT METHOD, AND NON-TRANSITORY COMPUTER-READABLE MEDIUM THEREOF - There is provided an information processing apparatus including an information acquirer configured to acquire information transmitted from an access point, a movement determiner configured to determine whether or not the information processing apparatus is moving, and a registration deletion determiner configured to determine, based on the acquired information and a result determined by the movement determiner, whether to register or delete information of an location of the access point. | 11-22-2012 |
20120309336 | INFORMATION PROCESSING APPARATUS AND CORRECTION METHOD - An information processing apparatus includes an acquiring unit configured to receive signals, which are transmitted from a fixed station, including identification information for identifying the fixed station, measure receive signal strength indications of the received signals, and acquire position information indicating positions at which the receive signal strength indications are measured, the receive signal strength indications, and the identification information in association with each other; and a gain/attenuation rate calculating unit configured to calculate correction information including a transmission antenna gain in a specific direction from the fixed station and an attenuation rate in a propagation path, the correction information being obtained from the receive signal strength indication measured at a first distance in the specific direction from the fixed station and the receive signal strength indication measured at a second distance in the specific direction that is different from the first distance. | 12-06-2012 |
20130125126 | INFORMATION PROCESSING APPARATUS AND METHOD FOR CONTROLLING INFORMATION PROCESSING APPARATUS - An information processing apparatus includes a user interface, a switching unit, and a computer. The user interface is for a user that operates a first processing unit that runs a first operating system or a second processing unit that runs a second operating system. The switching unit selectively switches between the first processing unit and the second processing unit to be associated with the user interface. The computer functions as the first processing unit. The computer functions as the second processing unit. The computer runs a first application program on the first operating system. The computer activates, on the second operating system, a second application program related to the first application program, in a state in which the first processing unit is associated with the user interface. The computer controls the switching unit upon completion of the activation of the second application program. | 05-16-2013 |
20130169417 | RFID TAG READER, RFID TAG READING SYSTEM, METHOD FOR PERFORMING RFID TAG READING PROCESS AND COMPUTER-READABLE RECORDING MEDIUM - An RFID tag reader is disclosed that includes a signal intensity obtaining part configured to obtain signal intensities of a first RFID tag and a second RFID tag that are read at plural read processes, a read-number obtaining part configured to obtain a number of RFID tags, among the first and the second RFID tags, that are read at the same read process, a processing part configured to weight the signal intensity of the first RFID tag obtained by the signal intensity obtaining part based on the number obtained at the corresponding read process, and a selecting part configured to select a read result of the first RFID tag based on the signal intensity of the first RFID tag weighted by the processing part. | 07-04-2013 |
20130191322 | DISCLOSURE RANGE DETERMINATION METHOD, DISCLOSURE RANGE DETERMINATION APPARATUS, AND MEDIUM - A disclosure range determination method includes accepting a disclosure range of data and metadata of the data, extracting attribute information of a user that belongs to the disclosure range of the data accepted in the accepting based on association information associating a disclosure range of data with attribute information of a user that belongs to the disclosure range, converting the metadata accepted in the accepting into a keyword based on association information associating a conversion rule that converts the metadata into significant information with a keyword corresponding to the conversion rule, and determining, by a computer, whether or not a user that belongs to the disclosure range accepted in the accepting qualifies for the disclosure range accepted in the accepting, based on whether or not the keyword converted in the converting is included in the attribute information extracted in the extracting. | 07-25-2013 |
20130191834 | CONTROL METHOD OF INFORMATION PROCESSING DEVICE - A method of controlling an information processing device includes selectively switching a first processor for executing a first operating system or a second processor for executing a second operating system to a user interface; storing a data table in which a first application program operating on the first operating system is associated with a second application program operating on the second operating system; sending information pertinent to activation of the first or second application program to a server device; receiving a result of a process from the server device, the process being performed by the server device for associating application programs based on the received information; updating the data table based on the received result; and activating the second application program, which is associated with the first application program being activated in the data table, in a state where the first processor has been switched to the user interface. | 07-25-2013 |
20130318392 | INFORMATION PROCESSING APPARATUS, CONTROL METHOD - An information processing apparatus includes a memory, and a processor that executes a process in the memory. The process includes detecting a sign of a fault of a storage device that prohibits write access to a storage area of the storage device and permits read access to the storage area during a fault, and storing a copy of data to be written to the storage device as first copy data in the memory when the sign of a fault is detected. | 11-28-2013 |
20140032648 | INFORMATION PROCESSING APPARATUS, DATA PROVISION METHOD, AND STORAGE MEDIUM - An information processing apparatus includes an interface unit configured to connect to a network, a storage unit configured to store data which is provided with an apparatus that is an issuer of the data request, a provision unit configured to accept a provision request for a provision of data to the apparatus that is an issuer of the data request from an information providing apparatus configured to communicate via the interface unit, and provide data stored in the storage unit to the apparatus that is the issuer of the data request, an input unit configured to accept an input operation performed by a user, and a stopping unit configured to, in a case where a predefined condition is satisfied, make the provision unit stop the provision of the data to the apparatus that is the issuer of the data request. | 01-30-2014 |
20140081920 | MEDIUM, CONTROL METHOD, AND INFORMATION PROCESSING APPARATUS - A medium stores a control program for an information processing apparatus. The control program causes the information processing apparatus to execute a procedure. The procedure includes obtaining history information on a type of an operation performed to each of a plurality of files, calculating a priority for a file among the files based on the type of the operation in the history information, and selecting a file among the files based on the priority. | 03-20-2014 |
20150205593 | INFORMATION PROCESSING DEVICE, SYSTEM, INFORMATION PROCESSING METHOD AND COMPUTER READABLE NON-TRANSITORY MEDIUM - An information processing device includes: a memory; and a circuitry, wherein the circuitry is configured: to read identification information for identifying an application software installed in a terminal and information relating to a usage condition of the application software in the terminal from the terminal; and to select a candidate application software and a candidate terminal to which the application software is served, based on the read identification information and the read information relating to the usage condition. | 07-23-2015 |
20150281366 | REMOTE ACCESS CONTROL PROGRAM, METHOD FOR SAME, AND DEVICE FOR SAME - A remote access control program causes a computer to execute a process including remotely accessing a connection destination apparatus via a network to enable remote operation, acquiring data transfer rate information of the computer to the network, acquiring operation information input to the computer, determining a content type indicating a state of use of the computer on the basis of the operation information and the data transfer rate information, generating pseudo operation information when the content type is a predetermined type, and maintaining an unlock state in the computer on the basis of the generated pseudo operation information. | 10-01-2015 |
Patent application number | Description | Published |
20080204026 | NMR SPECTROMETER - An object of the present invention is to solve the bending of an NMR probe and a room temperature shim coil so that they can be positioned easily. In the NMR spectrometer including split-pair magnets and a cross bore, a high rigidity straight pipe to which an NMR probe and a room temperature shim coil are attached so as to make an integral object, is provided. The outer diameter of the straight pipe is smaller than the inner diameter of a horizontal bore into which the room temperature shim coil and the probe are inserted. After the room temperature shim coil and the NMR probe are attached to the straight pipe by bolts, respectively, the integral object is inserted into the horizontal bore (a room temperature space) of the NMR spectrometer. The room temperature shim coil and the probe may be attached to different straight pipes. | 08-28-2008 |
20080284470 | Direct Digital Synthesizer and Nuclear Magnetic Resonance Instrument Using the Same - A DDS (direct digital synthesizer) remarkably increased in the number of frequencies which can be output while maintaining the phase coherency, and an NMR instrument using such a DDS are provided. A DDS including phase accumulators and a phase-to-amplitude modulator is provided with a plurality of phase accumulators operating with fixed phase implements which are equal to powers of 2, a controller for outputting each bit of a frequency tuning word as control data, a plurality of switches for outputting an output of an associated one of the phase accumulators when an associated one of the control data supplied from the controller is 1 and outputting 0 when the associated one of the control data is 0, and an adder for adding up outputs of the switches. | 11-20-2008 |
20090066333 | NMR Sample Tube - An NMR sample tube for NMR measurement is provided. It includes a plug on both sides or one side of a sample to be measured, in an axial direction of the sample tube. The plug is adjusted to have magnetic susceptibility equal to or substantially equal to that of the sample. A whole shape of the plug and a sample space together is axisymmetric about an axis of the sample tube, and a surface of the plug not abutting the sample space bulges in a direction away from the sample space. | 03-12-2009 |
20090174406 | NMR Probe - An NMR probe is provided that prevents homogeneity of the static magnetic field from being reduced in a sensitive area of an RF coil used for measuring an NMR signal. The RF coil is wound around a bobbin, and mounted on the NMR probe. In the NMR probe, a substance having a magnetic susceptibility of the same polarity as that of the RF coil is disposed on a surface of the bobbin which is not contacted by the RF coil. Alternatively, the bobbin is formed with grooves, and the RF coil is wound around the grooves. The bulk susceptibility of the bobbin or RF coil winding is adjusted such that the difference between the product of the depth of the groove and bulk susceptibility of the bobbin and the product of winding thickness and bulk susceptibility of the RF coil winding is 5 percent or less. | 07-09-2009 |
20100156423 | Signal Transmitting and Receiving Circuit, a NMR Probe, and a Nuclear Magnetic Resonance Equipment - An object of the invention is to change over accurately the switch part between use condition and nonuse condition. A signal transmitting and receiving circuit | 06-24-2010 |
20110226950 | LINEAR MOTOR PAIR, MOVING STAGE AND ELECTRON MICROSCOPE - When using a moving magnet type linear motor pair for a moving stage, the magnetic field in a space defined by the linear motor pair varies greatly in association with the movement of movable bodies. For this reason, 4N sets (N is a natural number) of magnet pairs | 09-22-2011 |
20120305766 | LINEAR MOTOR, MOVABLE STAGE AND ELECTRON MICROSCOPE - It is an object to balance suppression of a leakage magnetic field and driving performance. In a linear motor including a stator including a first yoke having an open face and two rows of permanent magnets linearly arrayed inside the first yoke so that S-poles and N-poles are alternate and a movable element arranged between the two rows of permanent magnets and linearly moving, a second yoke is connected to an open end of the first yoke so as to cover the open end of the first yoke and the permanent magnets when viewed from the open face of the first yoke. | 12-06-2012 |
20130012392 | SUPERCONDUCTING SWITCH, SUPERCONDUCTING MAGNET AND MRI - A superconducting switch is provided in which the structural strength of the superconducting switch is kept, and thermal efficiency between a superconducting film and a heater is high when an ON state (superconducting state) and an OFF state (normal conducting state) of the superconducting switch are switched. The superconducting switch includes a substrate, a heater for generating heat by energization, a conductive film, and a MgB | 01-10-2013 |
20130313431 | ELECTRON MICROSCOPE - Provided is an electron microscope capable of enhancing a magnetic shield function even though the structure thereof has an objective tens that projects into a sample chamber space. The electron microscope includes: an objective lens ( | 11-28-2013 |
Patent application number | Description | Published |
20080206472 | FILM FORMING APPARATUS AND METHOD FOR FORMING FILM - A film forming apparatus includes a processing chamber defined by walls, an application preparation room in which an applicator is temporary provided, a first carrier transporting the applicator from the application preparation room to the processing chamber, a stage on which a substrate is disposed and a maintenance part disposed adjacent to the application preparation room. A liquid is applied from the applicator onto the substrate to form a film on the substrate. | 08-28-2008 |
20090155454 | HIGHER ORDER SILANE COMPOSITION, METHOD FOR MANUFACTURING FILM-COATED SUBSTRATE, ELECTRO-OPTICAL DEVICE AND ELECTRONIC DEVICE - A higher order silane composition, includes: a higher order silane compound; and a solvent containing one of a substituted hydrocarbon based solvent and an unsubstituted hydrocarbon based solvent. As the solvent, a solvent having a refractive index of 1.53 or more is selected so that the higher order silane compound is dissolved therein. | 06-18-2009 |
20120289401 | METHOD FOR PRODUCING NANOPARTICLES - A method for producing nanoparticles includes: producing a nanoparticle dispersion ion gel in which a plurality of nanoparticles are dispersed; and dissolving the nanoparticle dispersion ion gel, thereby producing a liquid in which the plurality of nanoparticles are dispersed. | 11-15-2012 |
20130062993 | ACTUATOR AND METHOD FOR MANUFACTURING THE SAME - Provided are an actuator that is small, superior in terms of high-speed response, and capable of large displacement, and a manufacturing method that can easily manufacture the actuator. The actuator is configured by a laminated body including multiple electrodes, multiple cation-exchange resin films, and multiple anion-exchange resin films. The cation-exchange resin films and the anion-exchange resin films are stacked alternately, and each of the cation-exchange resin films and the anion-exchange resin films is sandwiched between two of the electrodes. A voltage is applied such that the electrodes between adjacent ones of the cation-exchange resin films and anion-exchange resin films have the same polarity. | 03-14-2013 |
20130328443 | DEFORMABLE MATERIAL AND ACTUATOR - A deformable material according to an embodiment of the invention includes a stimulus-responsive compound whose molecular structure is changed according to an oxidation-reduction reaction and an electronically conductive substance. The stimulus-responsive compound is a polymer obtained by polymerizing a constituent unit having a polymerizable functional group. The electronically conductive substance is preferably in the form of particles in the deformable material. Further, the electronically conductive substance preferably has an average particle diameter of 1 nm or more and 10 μm or less. Further, the electronically conductive substance preferably contains a carbon material. | 12-12-2013 |
20140212999 | PHOTOELECTRIC CONVERSION DEVICE, IMAGE DISPLAY, METHOD OF MANUFACTURING PHOTOELECTRIC CONVERSION DEVICE, AND METHOD OF MANUFACTURING IMAGE DISPLAY - A photoelectric conversion device includes a plurality of photoelectric conversion regions disposed over a substrate, and a colored region disposed among the photoelectric conversion regions over the substrate, the colored region forming an image over the substrate. | 07-31-2014 |
20150054850 | REHABILITATION DEVICE AND ASSISTIVE DEVICE FOR PHANTOM LIMB PAIN TREATMENT - A rehabilitation device for recovering a function of a paralyzed hand includes: a camera which photographs an image of a mark placed on the paralyzed hand and outputs a photographed image; a position recognition unit which takes input of the photographed image and recognizes a position of the paralyzed hand, using the image of the mark; an image forming unit which outputs a dynamic image in which the paralyzed hand moves; and a head-mounted display which displays the dynamic image superimposed on the paralyzed hand. | 02-26-2015 |
20150214860 | ACTUATOR - An actuator includes a first deformable material layer, a second deformable material layer, and an intermediate layer provided between the first deformable material layer and the second deformable material layer. The first deformable material layer includes a first deformable material containing a first stimulus-responsive compound, which changes its molecular structure and also its color tone according to an oxidation-reduction reaction, a first polymeric material, a first electronically conductive substance having a light transmitting property, and a first electrolyte. The second deformable material layer includes a second deformable material containing a second stimulus-responsive compound, which changes its molecular structure and also its color tone according to an oxidation-reduction reaction, a second polymeric material, a second electronically conductive substance having a light transmitting property, and a second electrolyte. The intermediate layer inhibits electron transfer between the first deformable material layer and the second deformable material layer. | 07-30-2015 |
Patent application number | Description | Published |
20110284828 | ORGANIC ELECTROLUMINESCENT DEVICE - Disclosed is an organic electroluminescent device (organic EL device) which is improved in luminous efficiency, fully secured of high driving stability, and of a simple structure. The organic EL device is constituted of an anode, organic layers containing a phosphorescent light-emitting layer, and a cathode piled one upon another on a substrate and a phosphine oxide derivative represented by general formula (1) is contained in a phosphorescent light-emitting layer, an electron-transporting layer, a hole-blocking layer, or an exciton-blocking layer. In general formula (1), L | 11-24-2011 |
20140291482 | COMPARATOR, SOLID-STATE IMAGING DEVICE, ELECTRONIC APPARATUS, AND DRIVING METHOD - A comparator includes: a first amplifying unit that includes a differential pair configured with a pair of transistors which are first and second transistors, and amplifies a difference of signals input to each of the gate electrodes of the first and second transistors, to output; a second amplifying unit that amplifies the signal output from the first amplifying unit; a third transistor that connects the first transistor to a power source voltage; a fourth transistor that connects the second transistor to the power source voltage; a fifth transistor that connects a connection point of gate electrodes of the third transistor and the fourth transistor to a drain of the third transistor; and a sixth transistor that connects a connection point of gate electrodes of the third transistor and the fourth transistor to a drain of the fourth transistor. | 10-02-2014 |
20140293104 | COMPARATOR, SOLID-STATE IMAGING DEVICE, ELECTRONIC APPARATUS, AND DRIVING METHOD - A comparator includes: a first amplifying unit that includes a differential pair configured with a pair of transistors which are first and second transistors, and amplifies a difference of signals input to each of the gate electrodes of the first and second transistors, to output; a second amplifying unit that amplifies the signal output from the first amplifying unit; a first condenser that is disposed between a gate electrode of the first transistor and a reference signal supply unit; a second condenser that is disposed between a gate electrode of the second transistor and a pixel signal wiring; a third transistor that connects a connection point of the gate electrode of the first transistor and the first condenser to the pixel signal wiring; and a fourth transistor that connects a connection point of the gate electrode of the second transistor and the second condenser to the pixel signal wiring. | 10-02-2014 |
20150237285 | COMPARATOR, SOLID-STATE IMAGING DEVICE, ELECTRONIC APPARATUS, AND DRIVING METHOD - A solid-state imaging device that outputs a pixel signal having a signal level corresponding to charges generated by a photoelectric conversion includes a comparator. The comparator has a first amplifying unit with first and second transistors configured as a differential pair and provides a signal output by amplifying a difference of signals input to the gate electrodes of the first and second transistors. It also has a second amplifying unit that amplifies the signal output, a first condenser disposed between the gate electrode of the first transistor and a reference signal supply, a second condenser disposed between the gate electrode of the second transistor and pixel signal wiring that reads out the pixel signal, and a switching circuit that connects the reference signal supply to the pixel signal wiring. | 08-20-2015 |