Patent application number | Description | Published |
20090160692 | A/D CONVERSION CIRCUIT AND ELECTRONIC INSTRUMENT - An A/D conversion circuit includes an amplifier circuit that includes a plurality of amplifiers that are cascaded, a selector that selects one of output signals output from the plurality of amplifiers and outputs the selected output signal as a selector output signal, an A/D converter that A/D-converts the selector output signal output from the selector, a determination circuit that determines whether or not a voltage of the output signal output from each of the plurality of amplifiers is within a determination voltage range specified by a high-potential-side determination voltage and a low-potential-side determination voltage, and a control circuit that instructs the selector to select one of the output signals output from the plurality of amplifiers based on the determination result of the determination circuit. | 06-25-2009 |
20090160693 | A/D CONVERSION CIRCUIT AND ELECTRONIC INSTRUMENT - An A/D conversion circuit includes a continuous-time filter that performs a filtering process on an input signal, an SCF that is provided in a subsequent stage of the continuous-time filter and performs a filtering process utilizing the continuous-time filter as a prefilter, a cut-off frequency of the SCF being variably set corresponding to a frequency band of the input signal, an A/D converter that is provided in a subsequent stage of the SCF and performs an A/D conversion operation utilizing the continuous-time filter and the SCF as prefilters, and a digital filter that is provided in a subsequent stage of the A/D converter and performs a digital filtering process utilizing the continuous-time filter and the SCF as prefilters, a cut-off frequency of the digital filter being variably set corresponding to the frequency band of the input signal. | 06-25-2009 |
20090212860 | INTEGRATED CIRCUIT DEVICE AND ELECTRONIC INSTRUMENT - An integrated circuit device includes an amplifier circuit that includes first to Nth amplifiers that are cascaded and receives an input signal, an A/D converter that performs an A/D conversion process on a signal amplified by the amplifier circuit, first to Nth D/A converters that are provided corresponding to the first to Nth amplifiers and used to perform an offset adjustment of the first to Nth amplifiers, and a control circuit that sets an offset adjustment of the first to Nth amplifiers using the first to Nth D/A converters and a gain adjustment of the first to Nth amplifiers. | 08-27-2009 |
20090212867 | INTEGRATED CIRCUIT DEVICE AND ELECTRONIC INSTRUMENT - An integrated circuit device includes an amplifier circuit that receives an input signal and performs an offset adjustment corresponding to a DC offset of the input signal and a gain adjustment corresponding to an amplitude of the input signal, a filter that is provided in a subsequent stage of the amplifier circuit, a cut-off frequency of the filter being variably set corresponding to a frequency band of the input signal, an A/D converter that is provided in a subsequent stage of the filter and performs an A/D conversion process on a signal amplified by the amplifier circuit, and a control circuit that sets an offset adjustment of the amplifier circuit, a gain adjustment of the amplifier circuit, and the cut-off frequency of the filter. | 08-27-2009 |
20090212983 | INTEGRATED CIRCUIT DEVICE AND ELECTRONIC INSTRUMENT - An integrated circuit device includes an amplifier circuit that includes first to Nth amplifiers, an A/D converter, first to Nth offset adjustment registers that are provided corresponding to the first to Nth amplifiers and store first to Nth offset adjustment data, first to Nth D/A converters provided corresponding to the first to Nth amplifiers, first to Nth offset value storage sections that store first to Nth offset value data, and a control circuit that calculates the first to Nth offset adjustment data based on the first to Nth offset value data, and sets the first to Nth offset adjustment data in the first to Nth offset adjustment registers. | 08-27-2009 |
Patent application number | Description | Published |
20130014581 | SENSOR DEVICE, AND ELECTRONIC APPARATUSAANM SAKUMA; MasayasuAACI KamiinaAACO JPAAGP SAKUMA; Masayasu Kamiina JPAANM KOBAYASHI; YoshihiroAACI KomaganeAACO JPAAGP KOBAYASHI; Yoshihiro Komagane JPAANM KITAMURA; ShojiroAACI SuwaAACO JPAAGP KITAMURA; Shojiro Suwa JPAANM CHINO; TaketoAACI HokutuAACO JPAAGP CHINO; Taketo Hokutu JPAANM IMAI; NobuyukiAACI ShiojiriAACO JPAAGP IMAI; Nobuyuki Shiojiri JP - A sensor device includes a mounting board having a first rigid board on which an angular velocity sensor is mounted and a third rigid board on which an angular velocity sensor is mounted, and a pedestal for fixing the mounting board. Further, the pedestal includes a base section having a first fixation surface along an x axis and a y axis, and projecting sections disposed on the base section, and having a second fixation surface along the x axis and a z axis, and a third fixation surface along the y axis and the z axis, each of the rigid boards is supported by at least two of the first fixation surface, the second fixation surface, and the third fixation surface, and the angular velocity sensors have respective detection axes intersecting with each other. | 01-17-2013 |
20160109238 | SENSOR DEVICE, AND ELECTRONIC APPARATUS - A sensor device includes a mounting board having a first rigid board on which an angular velocity sensor is mounted and a third rigid board on which an angular velocity sensor is mounted, and a pedestal for fixing the mounting board. Further, the pedestal includes a base section having a first fixation surface along an x axis and a y axis, and projecting sections disposed on the base section, and having a second fixation surface along the x axis and a z axis, and a third fixation surface along the y axis and the z axis, each of the rigid boards is supported by at least two of the first fixation surface, the second fixation surface, and the third fixation surface, and the angular velocity sensors have respective detection axes intersecting with each other. | 04-21-2016 |