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公开(公告)号：US11754593B2
公开(公告)日：2023-09-12
申请号：US17442272
申请日：2020-01-30
Inventor： Keisuke Kuroda , Takuya Kajiwara , Junji Nakatsuka , Masaaki Nagai
IPC: G01P15/125 , G01P15/18 , G01P21/00 , G01P15/08
CPC classification number: G01P15/125 , G01P15/0802 , G01P15/18 , G01P21/00
Abstract: A signal processing device includes a detection circuit, a correction circuit, and a comparator circuit. The detection circuit generates a first detection signal, based on an output signal of a capacitive detection element that detects inertial force. The correction circuit corrects non-linearity of the first detection signal and outputs a second detection signal thus corrected. The comparator circuit compares the first detection signal and the second detection signal with each other and outputs a comparison signal representing a result of comparison.
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公开(公告)号：US11677411B2
公开(公告)日：2023-06-13
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：US10193194B2
公开(公告)日：2019-01-29
申请号：US15049811
申请日：2016-02-22
Inventor： Junji Nakatsuka , Gorou Mori
Abstract: A battery assembly controller controls terminal voltages of a plurality of series-connected secondary batteries to be equal. The controller includes a discharge circuit selectively reducing the terminal voltages of the secondary batteries; and a monitoring circuit directly connected to positive and negative electrodes of the secondary batteries to monitor the terminal voltages of the secondary batteries.
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公开(公告)号：US12203955B2
公开(公告)日：2025-01-21
申请号：US17442300
申请日：2020-01-09
Inventor： Keisuke Kuroda , Takuya Kajiwara , Junji Nakatsuka , Masaaki Nagai
IPC: G01P21/00 , G01P15/08 , G01P15/125 , G01P15/18
Abstract: A signal processing device includes detection circuitry and correction circuitry. The detection circuitry includes a first detection unit and a second detection unit. The first detection unit generates at least one detection signal based on an associated one of output signals corresponding to each of at least two directions. The second detection unit has a broader detection range than the first detection unit and generates at least one correction signal based on the associated one of the output signals corresponding to each of the at least two directions. The correction circuitry corrects an associated one of the detection signals corresponding to each of the at least two directions with at least an associated one of the correction signals corresponding to at least one direction, other than one direction subjected to correction, out of the at least two directions.
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公开(公告)号：US11916563B2
公开(公告)日：2024-02-27
申请号：US17427061
申请日：2020-03-09
Inventor： Jun'Ichi Naka , Koji Obata , Junji Nakatsuka , Hiroki Yoshino , Masaaki Nagai
CPC classification number: H03M1/0626
Abstract: Provided are an analog-to-digital (AD) converter, a sensor processing circuit, and a sensor system capable of improving responsiveness of feedback control. AD converter includes input part, AD conversion part, first output part, and second output part. The analog signal output from sensor is input to input part. AD conversion part digitally converts an analog signal to generate first digital data and second digital data. First output part outputs the first digital data to control circuit. Second output part outputs the second digital data to sensor before first output part outputs the first digital data.
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Patent Agency Ranking
公开(公告)号：US11050434B2
公开(公告)日：2021-06-29
申请号：US16761496
申请日：2018-11-14
Inventor： Junji Nakatsuka
Abstract: A digital-to-analog converter includes: a first partial circuit with a first bank of resistors and a first group of switches; a second partial circuit; a first resistor; a third partial circuit with a third bank of resistors and a third group of switches; and a fourth partial circuit with a fourth bank of resistors and a fourth group of switches Supposing that the first resistor has a resistance value R, the fourth bank of resistors has a combined resistance value of 2(n-m)R, the first bank of resistors has a combined resistance value of (2m−1)R, the third bank of resistors has a combined resistance value of (2m−1)R, and the second partial circuit has a combined resistance value of R/(2(n-m)−1).
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公开(公告)号：US20210167792A1
公开(公告)日：2021-06-03
申请号：US16761496
申请日：2018-11-14
Inventor： Junji Nakatsuka
Abstract: A digital-to-analog converter includes: a first partial circuit with a first bank of resistors and a first group of switches; a second partial circuit; a first resistor; a third partial circuit with a third bank of resistors and a third group of switches; and a fourth partial circuit with a fourth bank of resistors and a fourth group of switches Supposing that the first resistor has a resistance value R, the fourth bank of resistors has a combined resistance value of 2(n−m)R, the first bank of resistors has a combined resistance value of (2m−1)R, the third bank of resistors has a combined resistance value of (2m−1)R, and the second partial circuit has a combined resistance value of R/(2(n−m)−1).
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公开(公告)号：US11664815B2
公开(公告)日：2023-05-30
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：US11611349B2
公开(公告)日：2023-03-21
申请号：US17427060
申请日：2020-03-13
Inventor： Koji Obata , Jun'ichi Naka , Junji Nakatsuka , Hiroki Yoshino , Masaaki Nagai
Abstract: Provided are an analog-to-digital (AD) converter, a sensor system, and a test system capable of reducing the time for test processing. AD converter includes input part, AD conversion part, first output part, and second output part. The analog signal output from sensor is input to input part. AD conversion part digitally converts an analog signal to generate first digital data and second digital data. First output part outputs the first digital data to control circuit. Second output part outputs the second digital data to test controller before first output part outputs the first digital data. In the test mode, test controller determines whether or not sensor system including sensor is in an abnormal state on the basis of the second digital data.
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公开(公告)号：US10581124B2
公开(公告)日：2020-03-03
申请号：US16225296
申请日：2018-12-19
Inventor： Junji Nakatsuka , Gorou Mori
IPC: H01M10/46 , H01M10/42 , H02J7/02 , G01R31/396 , H02J7/00 , B60L58/22 , B60L58/18 , H01M10/44 , H01M10/48
Abstract: A battery assembly controller controls terminal voltages of a plurality of series-connected secondary batteries to be equal. The controller includes a discharge circuit selectively reducing the terminal voltages of the secondary batteries; and a monitoring circuit directly connected to positive and negative electrodes of the secondary batteries to monitor the terminal voltages of the secondary batteries.
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