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公开(公告)号:US20230344442A1
公开(公告)日:2023-10-26
申请号:US18245815
申请日:2021-06-10
Inventor: Jun'ichi NAKA , Koji OBATA
IPC: H03M1/46
Abstract: A D/A converting unit generates a comparative voltage corresponding to a target bit falling within a range from a most significant bit through a least significant bit. A comparator determines a value of the target bit by comparing a differential voltage between an output signal of an input switching unit and a comparative voltage generated by the D/A converting unit with a reference voltage. An integrator integrates a conversion error. In a first conversion operation of converting a first signal, a control unit sets, based on a result obtained by the integrator, the reference voltage for use when the first signal to be provided next time as the output signal by the input switching unit is A/D converted. In a second conversion operation of A/D converting a second signal, the control unit sets the reference voltage at a constant voltage level.
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公开(公告)号:US20220173746A1
公开(公告)日:2022-06-02
申请号:US17442088
申请日:2020-02-28
Inventor: Junji NAKATSUKA , Hiroki YOSHINO , Jun'ichi NAKA , Koji OBATA , Masaaki NAGAI
Abstract: An A/D converter includes an A/D conversion unit and an output unit. The A/D conversion unit includes a second A/D converter (successive approximation register A/D converter) and generates first digital data having a first number of bits and second digital data having a second number of bits, where the second number of bits is smaller than the first number of bits. The output unit provides first output information that is the first digital data and also provides second output information based on the second digital data. The output unit provides the second output information before providing the first output information.
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公开(公告)号:US20220158652A1
公开(公告)日:2022-05-19
申请号:US17442303
申请日:2020-02-28
Inventor: Masaaki NAGAI , Hiroki YOSHINO , Junji NAKATSUKA , Jun'ichi NAKA , Koji OBATA
IPC: H03M3/00
Abstract: A digital filter is used in an A/D converter and includes a first filter and second filter. The first filter outputs first digital data by performing filter processing on output of an A/D conversion unit included in the A/D converter. The second filter outputs second digital data by performing filter processing on the output of the A/D conversion unit. The second digital data has either a lower resolution or a smaller effective number of bits than the first digital data does. The second filter outputs the second digital data before the first filter outputs the first digital data.
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公开(公告)号:US20200381626A1
公开(公告)日:2020-12-03
申请号:US16635021
申请日:2018-08-07
Inventor: Nobuyuki MATSUZAWA , Masaru SASAGO , Jun'ichi NAKA
Abstract: A p-type semiconductor film including heterofullerene having a further sufficiently high hole mobility is provided. The p-type semiconductor film contains heterofullerene in which n+r number (where n and r are both positive odd numbers) of carbon atoms constituting a fullerene are substituted by n number of boron atom or atoms and r number of nitrogen atom or atoms.
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