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公开(公告)号：US20190170499A1
公开(公告)日：2019-06-06
申请号：US16267646
申请日：2019-02-05
Applicant: DENSO CORPORATION
Inventor： Takasuke ITO , Yoshiyuki KONO , Tomoyuki TAKIGUCHI , Sadahito FUKUMORI
Abstract: A position detection device is configured to detect a position of a detection target. The position detection device includes: an IC package including a magnetic detection element configured to output a signal that depend on a direction or a strength of an ambient magnetic field, a sealing portion in which the magnetic detection element is sealed, and lead lines, which are projected from the sealing portion and are electrically connected to the magnetic detection elements; terminal lines electrically connectable to the lead lines respectively; and a lead guide placed along the lead lines to restrict positional deviation of the lead lines.
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公开(公告)号：US20220321387A1
公开(公告)日：2022-10-06
申请号：US17705631
申请日：2022-03-28
Applicant: DENSO CORPORATION
Inventor： Takasuke ITO , Yoshikazu FURUTA , Shigeki OTSUKA , Tomohiro NEZUKA
IPC: H04L25/02 , H04B1/04 , H03K19/0185 , H03K19/20
Abstract: A differential communication driver circuit includes a drive unit that drives differential signal lines connected via capacitors by a source current and a sink current. When a noise detection unit detects that in-phase noise is applied to the differential signal lines, a drive assisting unit maintains an amplitude of a differential signal output to the differential signal lines by increasing a current drive capability of the sink current.
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公开(公告)号：US20200300922A1
公开(公告)日：2020-09-24
申请号：US16892791
申请日：2020-06-04
Applicant: DENSO CORPORATION
Inventor： Takasuke ITO , Yoshiyuki KONO , Tomoyuki TAKIGUCHI
Abstract: An output terminal of a signal output device is connected through a branch path to a voltage dividing point in a main path, and transmits an output signal based on a voltage of the voltage dividing point to an outside. A signal generation circuit adjusts the voltage of the voltage dividing point and generates the output signal. A short circuit detection circuit detects a short circuit between the output terminal and another terminal when a current flowing in the branch path is greater than a predetermined short circuit detection threshold. A switching circuit switches a current carrying capacity or a configuration of the signal generation circuit to limit a short circuit current flowing in the branch path when the short circuit is detected. The short circuit current is set to a value equal to or greater than the short circuit detection threshold and less than a current upper limit value.
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公开(公告)号：US20240243743A1
公开(公告)日：2024-07-18
申请号：US18537108
申请日：2023-12-12
Inventor： Takasuke ITO , Shigeki OTSUKA , Yoshikazu FURUTA , Tomohiro NEZUKA
IPC: H03K17/687 , H03K19/20
CPC classification number: H03K17/6871 , H03K19/20
Abstract: A deterioration inhibiting circuit includes a switchover circuit that inhibits characteristic deterioration of first and second transistors included in a differential pair circuit having first and second input terminals. A gate of the first transistor is connected to the first input terminal, and a gate of the second transistor is connected to the second input terminal. The switchover circuit executes switchover between a first state and a second state. In the first state, a first voltage is applied to the gate of the first transistor and a second voltage is applied to the gate of the second transistor. In the second state, the second voltage is applied to the gate of the first transistor and the first voltage is applied to the gate of the second transistor. the first voltage is higher than an intermediate voltage, and the second voltage is lower than the intermediate voltage.
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公开(公告)号：US20200235763A1
公开(公告)日：2020-07-23
申请号：US16844218
申请日：2020-04-09
Applicant: DENSO CORPORATION
Inventor： Takasuke ITO , Yoshiyuki KONO , Tomoyuki TAKIGUCHI
Abstract: A communication apparatus operates with a supply voltage of a power and transmits a sensor value with a digital communication method using consecutive frames. In the communication apparatus, a data source unit is configured to generate a frame using a data of a sensor value processed by a signal processing unit. A switching unit is configured to perform a signal switching to permit a transmission circuit to perform a re-transmission of re-transmitting a signal including the sensor value stored in a memory in response to a restoration of the power after an instantaneous power interruption. A frame monitoring unit is configured to monitor a status of a frame transmission and determine a frame at the occurrence of the instantaneous power interruption. The sensor value to be re-transmitted is determined based on information of the frame determined by the frame monitoring unit at the occurrence of the instantaneous power interruption.
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Patent Agency Ranking
公开(公告)号：US20180331674A1
公开(公告)日：2018-11-15
申请号：US15775850
申请日：2016-11-11
Applicant: DENSO CORPORATION
Inventor： Takasuke ITO , Shigeki OTSUKA , Kazuyoshi NAGASE
CPC classification number: H03H17/028 , H03H7/01 , H03H17/02 , H03H17/0248 , H04B3/04 , H04B3/20
Abstract: A signal output device is provided in a communication apparatus. The communication apparatus communicates with a different one of the communication apparatus using a single line. The signal output device includes a signal output unit. The signal output unit includes a first filter and a second filter. The first filter is provided by a Bessel filter. The second filter is provided by a Chebyshev filter or a Butterworth filter. The signal output unit outputs a signal which is obtained by passing a predetermined signal through the first filter and the second filter. The signal output from the signal output unit has a pass characteristic of the first filter and a pass characteristic of the second filter. A cutoff frequency of the first filter is set to be lower than a cutoff frequency of the second filter.
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公开(公告)号：US20230062515A1
公开(公告)日：2023-03-02
申请号：US17868057
申请日：2022-07-19
Inventor： Shigeki OTSUKA , Hyoungjun NA , Takasuke ITO , Yoshikazu FURUTA , Tomohiro NEZUKA
IPC: H04L25/02 , H03K17/687
Abstract: A differential transmission circuit for a communication device performs bidirectional communication via a differential transmission line. The differential transmission circuit include: output transistors that are turned on and off according to a drive signal during a transmission period; a signal generation unit that generates and outputs the drive signal; short-circuit transistors connected between gates and drains of the output transistors; and a cut off unit that cuts off a supply path of the drive signal between the signal generation unit and the gates of the output transistors. The cut off unit cuts off the supply path of the drive signal during a reception period in which a reception operation is performed by the communication device.
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公开(公告)号：US20220340011A1
公开(公告)日：2022-10-27
申请号：US17722444
申请日：2022-04-18
Inventor： Hyoungjun NA , Yoshikazu FURUTA , Shigeki OTSUKA , Takasuke ITO , Tomohiro NEZUKA
Abstract: In a communication system, a control unit and driver units are connected in a daisy chain; each unit includes a corresponding insulated communication circuit, respectively. The control unit measures a communication delay time between the control unit and each driver unit from a response time to transmission of a pulse signal performed to each driver unit during a measurement period. Then, based on each communication delay time, the control unit transmits a shift time to each driver unit for equalizing the timing of signals output by the driver units. When each driver unit receives, from the control unit, an instruction instructing each driver unit to output a signal, each driver unit outputs the signal when the shift time has elapsed.
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公开(公告)号：US20200340834A1
公开(公告)日：2020-10-29
申请号：US16924353
申请日：2020-07-09
Applicant: DENSO CORPORATION
Inventor： Yoshinori INUZUKA , Yoshiyuki KONO , Hidekazu WATANABE , Tomoyuki TAKIGUCHI , Takasuke ITO
Abstract: A rotation angle detection device for detecting a rotation angle of a rotating body includes a magnet disposed to rotate together with the rotating body, a magnetic portion provided in a ring shape radially outward of the magnet, a plurality of gaps being formed in the magnetic portion at a plurality of locations along a circumferential direction, and a magnetic detection unit arranged in a particular gap of the plurality of gaps. The magnetic detection unit is located at a detection position, a width of the particular gap in the tangential direction at the detection position is defined as a detection position gap width, a width of the particular gap in the tangential direction at a position radially outward of the detection position is defined as a tangential width, and the tangential width is narrower than the detection position gap width.
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公开(公告)号：US20190170498A1
公开(公告)日：2019-06-06
申请号：US16267631
申请日：2019-02-05
Applicant: DENSO CORPORATION
Inventor： Takasuke ITO , Yoshiyuki KONO , Tomoyuki TAKIGUCHI , Sadahito FUKUMORI
Abstract: An IC package includes a magnetic detection element, multiple lead lines electrically connected to the magnetic detection element, and multiple terminal lines weldable to the lead lines respectively. A first welding portion, in which a first lead line of the multiple lead lines is welded to a first terminal line of the multiple terminal lines, is not on vertical lines that pass through second welding portions in which the second lead lines of the multiple lead lines are welded to the second terminal lines of the multiple terminal lines respectively. The second lead lines are adjacent to the first lead line. The vertical lines are orthogonal to center axes of the second lead lines.
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