Patent application number | Description | Published |
20090295453 | SIGNAL READING METHOD, SIGNAL READING CIRCUIT, AND IMAGE SENSOR - A signal reading method successively outputs a read signal by scanning a voltage value of an integrating capacitor in an image sensor in which a plurality of sensor parts are arranged in a two-dimensional array made up of rows and columns and each sensor part includes the integrating capacitor accumulating a charge obtained by integrating a photocurrent output from a sensor. A first integration of the photocurrent using the integrating capacitor and a first sampling and holding using a sample and hold capacitor are performed in a first time interval, during a time of one frame made up of the first through third time intervals. A second integration of the photocurrent using the integrating capacitor is performed in the second time interval, and processes in the first and second time intervals are performed in common with respect to all of the sensor parts simultaneously. A vertical scan is started by selecting the row in an order starting from a first row. | 12-03-2009 |
20100032552 | OPTICAL SEMICONDUCTOR DEVICE - An optical semiconductor device includes a lower electrode layer formed over a semiconductor substrate, an infrared absorption layer formed over the lower electrode layer | 02-11-2010 |
20100032651 | QUANTUM DOT INFRARED PHOTODETECTOR - A quantum dot infrared photodetector includes a quantum dot structure including intermediate layers, and a quantum dot layer sandwiched between the intermediate layers and including quantum dots whose energy potential is low for carriers, the intermediate layers and the quantum dots being formed of a III-V compound semiconductor with the V element being As, and an AlAs layer being provided on one of the interfaces between the intermediate layers and the quantum dot layer including the quantum dots and covering at least the quantum dots. | 02-11-2010 |
20100032652 | INFRARED PHOTODETECTOR - An infrared photodetector including a layer structure of an intermediate layer, and a quantum dot layer having a narrower band gap than the intermediate layer and including a plurality of quantum dots alternately stacked, and detecting photocurrent generated when infrared radiation is applied to the layer structure to thereby detect the infrared radiation, the infrared photodetector further including a first barrier layer provided on one side of the quantum dot layer and having a larger band gap than the intermediate layer; and a second barrier layer provided on the other side of the quantum dot layer and having a larger band gap than the intermediate layer. | 02-11-2010 |
20110157439 | IMAGING DEVICE, A/D CONVERTER DEVICE AND READING CIRCUIT - An A/D converter device includes a zone identifying circuit configured to identify which one of a plurality of level zones a voltage level of an analog output signal is in; a shift voltage generating circuit configured to generate a shift voltage which corresponds to a relevant one of the level zones; an operational amplifier circuit configured to change the analog output signal by means of the shift voltage, the operational amplifier circuit being configured to amplify the changed analog output signal to suit an A/D conversion input range so as to generate an amplified and shifted analog signal; a first A/D converter circuit configured to A/D-convert the amplified and shifted analog signal so as to calculate a first A/D converted value; and a second A/D converted value calculating circuit configured to calculate a second A/D converted value from the first A/D converted value in accordance with the relevant level zone. | 06-30-2011 |
Patent application number | Description | Published |
20090033787 | IMAGE INPUT MODULE ADJUSTING DEVICE AND IMAGE INPUT MODULE ADJUSTING METHOD - An image input module adjusting device includes a board moving mechanism configured to movably hold a board in directions crossing each other; a board moving restriction mechanism configured to restrict movement of the board; an engaging member moving mechanism configured to move an engaging member engaged with a position adjusting component provided on the board; a control part configured to drive the engaging member moving mechanism while allowing the board moving restriction mechanism to move the board, to move and thereby the engaging member is engaged with the position adjusting component and the board is moved to an adjusting original position; a lens position adjusting mechanism configured to perform the position adjusting of the lens; and a focus adjusting mechanism configured to perform the focus adjusting of the lens relative to the image input sensor while the movement of the board is restricted. | 02-05-2009 |
20100132187 | PART MOUNTING APPARATUS AND METHOD - A part mounting apparatus mounts a plurality of mounting parts to a board. The board is placed on a placement stage. A first part support part supports a first mounting part. A second part support part supports a second mounting part. A first camera image-recognizes the first mounting part supported by the first part support part from above, and image-recognizes a mounting surface of the board placed on the placement stage from above the first part support part. A second camera image-recognizes the second mounting part supported by the second part support part from underneath. | 06-03-2010 |
20100325884 | MOUNTING APPARATUS AND MOUNTING METHOD - A mounting apparatus includes a stage device on which an installation substrate and a component are placed, a suction head provided vertically above the stage device, the suction unit moving in a direction perpendicular to the stage device, a contact attached to the suction head that comes into contact with an electrode of the component, a camera provided vertically above the suction head, the camera moving in a direction perpendicular to the suction head, and a control unit that controls operation of the stage device, operation of the suction head, application of electricity to the contact, and operation of the camera. | 12-30-2010 |