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1.发明申请公开(公告)号：US20200173816A1
公开(公告)日：2020-06-04
申请号：US16780396
申请日：2020-02-03
Applicant: TT Electronics PLC
Inventor： James Cusey , Stepan Iliasevitch , Benjamin Mak , Bharath Mandyam , Brent Hans Larson
Abstract: An encoder device includes an array of detectors that are operable to detect a flux and to generate currents in response to the detection; multiple current lines for conducting currents; a set of switches coupled between the array of detectors and the multiple current lines such that an output of each of the array of detectors is routed to none or one of the multiple current lines; and a controller operable to configure the set of switches.
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公开(公告)号：US20200166382A1
公开(公告)日：2020-05-28
申请号：US16694189
申请日：2019-11-25
Applicant: TT Electronics PLC
Inventor： Brent Hans Larson , Virgil Ararao , James P. Cusey
IPC: G01D5/347
Abstract: An optical encoder system includes: a light emitter configured to emit a light flux; a plurality of photodetectors in an array, wherein each photodetector is operable to generate a current in response to the light flux; and a target object positioned to reflect the light flux onto the plurality of photodetectors; wherein the light emitter is configured to produce a non-circular pattern of the light flux.
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公开(公告)号：US10667350B2
公开(公告)日：2020-05-26
申请号：US15873617
申请日：2018-01-17
Applicant: TT ELectronics Plc
Inventor： James P. Cusey , Alain Potteck , Tri-Tue Truong
Abstract: A temperature-dependent current generator includes a first transistor connected between first and second nodes and providing a first voltage potential at the second node that decreases first order linearly when ambient temperature increases. The generator further includes an operational amplifier having first and second input terminals and an output terminal. The first input terminal is coupled to a second voltage potential that is first order independent of the ambient temperature. The second input terminal is coupled to a third node. The generator further includes a second transistor with gate, source, and drain terminals. The gate terminal is coupled to the output terminal of the operational amplifier. One of the source and drain terminals is coupled to the third node. The generator further includes a resistor coupled between the second and the third nodes. A resistance value of the resistor is first order independent of the ambient temperature.
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公开(公告)号：US20200083898A1
公开(公告)日：2020-03-12
申请号：US16563058
申请日：2019-09-06
Applicant: TT Electronics PLC
Inventor： James P. Cusey , Brent Hans Larson
Abstract: An encoder system includes a configurable detector array, wherein the configurable detector array includes a plurality of detectors. In an embodiment, the encoder system includes an application-specific integrated circuit (ASIC). The encoder system may also include a memory operable to store a partition map that defines a state for each of the plurality of detectors. In an embodiment, the memory includes a non-volatile memory. The encoder system may also include a controller, such as a microcontroller, operable to read from the memory the partition map and to adjust the partition map according to a misalignment measurement before configuring the configurable detector array. The encoder system may also include an emitter operable to generate a flux modulated by a motion object, wherein the configurable detector array is operable to receive the flux and generate respective current outputs for each of the detectors in response to the flux.
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5.发明授权公开(公告)号：US10551223B2
公开(公告)日：2020-02-04
申请号：US15681182
申请日：2017-08-18
Applicant: TT Electronics PLC
Inventor： James Cusey , Stepan Illasevitch , Benjamin Mak , Bharath Mandyam , Brent Hans Larson
Abstract: An encoder system includes a configurable detector array, wherein the configurable detector array includes a plurality of detectors. In an embodiment, the encoder system includes an application-specific integrated circuit (ASIC). The encoder system may also include a memory operable to store a partition map that defines a state for each of the plurality of detectors. In an embodiment, the memory includes a non-volatile memory. The encoder system may also include a controller, such as a microcontroller, operable to read from the memory the partition map and to configure the configurable detector array according to the configuration map. The encoder system may also include an emitter operable to generate a flux modulated by a motion object, wherein the configurable detector array is operable to receive the flux and generate respective current outputs for each of the detectors in response to the flux.
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Patent Agency Ranking
公开(公告)号：US20190049375A1
公开(公告)日：2019-02-14
申请号：US16164215
申请日：2018-10-18
Applicant: TT Electronics PLC
Inventor： Troy Don Cook
Abstract: The present disclosure includes systems and methods for calibration of an optical sensor package, including setting an initial detection threshold of a detector, gradually increasing a power level of a signal generator that is in communication with a detector to cause a detected power at the detector to exceed the initial detection threshold, storing in a memory a first power level of the signal generator at which the detected power at the detector exceeds the initial detection threshold, and adjusting the initial detection threshold of the detector to an adjusted detection threshold to include a detection buffer amount within the adjusted detection threshold.
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公开(公告)号：US10285275B2
公开(公告)日：2019-05-07
申请号：US15605353
申请日：2017-05-25
Applicant: TT Electronics PLC
Inventor： Brent Hans Larson , Shivesh Langhanoja
IPC: H05K5/00 , H05K7/00 , H05K1/18 , G01L19/00 , H05K1/09 , H05K1/11 , H05K3/28 , H05K3/32 , H05K7/02 , H05K1/16
Abstract: A sensor device includes a printed circuit board (PCB) substrate having a top surface, a bottom surface, a slot between the top and bottom surfaces, and two holes through the top surface and reaching into the slot. The sensor device further includes a sensor chip mounted on the top surface of the PCB substrate and above one of the two holes. The sensor device further includes a molding compound covering the sensor chip and sidewall surfaces and the top surface of the PCB substrate.
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公开(公告)号：US10139341B2
公开(公告)日：2018-11-27
申请号：US15170511
申请日：2016-06-01
Applicant: TT Electronics Plc
Inventor： Troy Don Cook
Abstract: The present disclosure includes systems and methods for calibration of an optical sensor package, including setting an initial detection threshold of a detector, gradually increasing a power level of a signal generator that is in communication with a detector to cause a detected power at the detector to exceed the initial detection threshold, storing in a memory a first power level of the signal generator at which the detected power at the detector exceeds the initial detection threshold, and adjusting the initial detection threshold of the detector to an adjusted detection threshold to include a detection buffer amount within the adjusted detection threshold.
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9.发明申请公开(公告)号：US20180266852A1
公开(公告)日：2018-09-20
申请号：US15681182
申请日：2017-08-18
Applicant: TT Electronics PLC
Inventor： James Cusey , Stepan Illasevitch , Benjamin Mak , Bharath Mandyam , Brent Hans Larson
Abstract: An encoder system includes a configurable detector array, wherein the configurable detector array includes a plurality of detectors. In an embodiment, the encoder system includes an application-specific integrated circuit (ASIC). The encoder system may also include a memory operable to store a partition map that defines a state for each of the plurality of detectors. In an embodiment, the memory includes a non-volatile memory. The encoder system may also include a controller, such as a microcontroller, operable to read from the memory the partition map and to configure the configurable detector array according to the configuration map. The encoder system may also include an emitter operable to generate a flux modulated by a motion object, wherein the configurable detector array is operable to receive the flux and generate respective current outputs for each of the detectors in response to the flux.
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公开(公告)号：US20170347419A1
公开(公告)日：2017-11-30
申请号：US15168858
申请日：2016-05-31
Applicant: TT Electronics Plc
Inventor： James P. Cusey , Alain Potteck , Tri-Tue Truong
CPC classification number: H05B33/0854 , G01J1/0252 , G01J1/08 , G01J1/32 , G01J1/42 , G01J2001/086 , H05B33/0848
Abstract: A temperature compensation circuit for a light source (e.g., light emitting diode (LED)) whose radiant energy output decreases when ambient temperature increases includes a first circuit element for generating a first current that increases proportional to an increase in the ambient temperature, and a second circuit element for generating a second current that is first order independent of the ambient temperature. The circuit further includes a weighted current adder for generating a third current by combining the first and second currents with first and second weights applied to the first and second currents respectively. The circuit further includes a third circuit element responsive to the third current for supplying a fourth current to the light source to maintain a radiant energy output of the light source constant independent of the ambient temperature.
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