公开(公告)号：US20180323083A1

公开(公告)日：2018-11-08

申请号：US15589611

申请日：2017-05-08

Applicant: TT Electronics Plc

Inventor： Shivesh Langhanoja ,  Brent Hans Larson

IPC: H01L21/56 ,  G01L19/06 ,  H01L23/28 ,  H01L23/00 ,  G01L19/14

CPC classification number: H01L21/561 ,  B81B7/0032 ,  B81B2201/0264 ,  G01L19/0061 ,  G01L19/0627 ,  G01L19/141 ,  G01L19/147 ,  H01L21/56 ,  H01L23/28 ,  H01L24/13 ,  H01L24/16 ,  H01L24/45 ,  H01L24/48 ,  H01L2224/13101 ,  H01L2224/16225 ,  H01L2224/45124 ,  H01L2224/45144 ,  H01L2224/45147 ,  H01L2224/45565 ,  H01L2224/45644 ,  H01L2224/48091 ,  H01L2224/48227 ,  H01L2924/181 ,  H01L2924/00014 ,  H01L2924/014 ,  H01L2924/00012

Abstract: A sensor device including: a first substrate having a bottom surface and a top surface; a second substrate having a bottom surface and a top surface, a media channel having two vertical sections and a horizontal section, wherein the two vertical sections are through the second substrate, a portion of the bottom surface of the second substrate forms a top surface of the horizontal section, and a portion of the top surface of the first substrate forms a bottom surface of the horizontal section; a sensor chip disposed on one of the two vertical sections of the media channel; and a molding compound covering side surfaces of the first substrate, the second substrate, and the sensor chip.

公开(公告)号：US20180160499A1

公开(公告)日：2018-06-07

申请号：US15873617

申请日：2018-01-17

Applicant: TT Electronics Plc

Inventor： James P. Cusey ,  Alain Potteck ,  Tri-Tue Truong

IPC: H05B33/08 ,  G01J1/42 ,  G01J1/02 ,  G01J1/32 ,  G01J1/08

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.

公开(公告)号：US09900953B2

公开(公告)日：2018-02-20

申请号：US15168858

申请日：2016-05-31

Applicant: TT Electronics Plc

Inventor： James P. Cusey ,  Alain Potteck ,  Tri-Tue Truong

IPC: H05B33/08 ,  G01J1/42 ,  G01J1/02

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.

公开(公告)号：US20170343473A1

公开(公告)日：2017-11-30

申请号：US15170511

申请日：2016-06-01

Applicant: TT Electronics Plc

Inventor： Troy Don Cook

IPC: G01N21/59 ,  G01N21/86

CPC classification number: G01N21/59 ,  G01N21/274 ,  G01N21/4738 ,  G01N21/86 ,  G01N2021/8663 ,  G01N2201/062 ,  G01N2201/12723 ,  G01V8/12 ,  G01V13/00

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.

公开(公告)号：US11089688B2

公开(公告)日：2021-08-10

申请号：US16397594

申请日：2019-04-29

Applicant: TT Electronics PLC

Inventor： Brent Hans Larson ,  Shivesh Langhanoja

IPC: H05K1/18 ,  H05K1/02 ,  G01L19/14 ,  G01L19/00 ,  H05K1/09 ,  H05K1/11 ,  H05K3/28 ,  H05K3/32 ,  H05K7/02 ,  H05K1/16 ,  G01L13/02

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.

公开(公告)号：US20190254168A1

公开(公告)日：2019-08-15

申请号：US16397594

申请日：2019-04-29

Applicant: TT Electronics PLC

Inventor： Brent Hans Larson ,  Shivesh Langhanoja

IPC: H05K1/18 ,  G01L19/00 ,  H05K3/32 ,  H05K1/11 ,  H05K1/09 ,  H05K3/28 ,  H05K1/02

CPC classification number: H05K1/185 ,  G01L13/025 ,  G01L19/0007 ,  G01L19/0076 ,  G01L19/148 ,  H05K1/0272 ,  H05K1/09 ,  H05K1/111 ,  H05K1/115 ,  H05K1/16 ,  H05K1/18 ,  H05K1/181 ,  H05K3/28 ,  H05K3/32 ,  H05K7/02 ,  H05K2201/037 ,  H05K2201/10 ,  H05K2201/10151 ,  H05K2203/1327 ,  H05K2203/308

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.

公开(公告)号：US10295377B2

公开(公告)日：2019-05-21

申请号：US15472492

申请日：2017-03-29

Applicant: TT Electronics Plc

Inventor： James P. Cusey ,  Brent Hans Larson ,  Troy Don Cook

IPC: G01J1/36 ,  G01D5/30 ,  G01D18/00

Abstract: An optical detection system includes a first device that has a first light source and a first light detector, and a second device that has a second light source and a second light detector. The first and second devices are configured to turn on and off the first and second light sources periodically based on first and second control signals, respectively. The first and second light sources are configured not to emit light simultaneously. The first and second light sources emit light in wavelength ranges that overlap. The optical detection system further has the characteristic that when the first light source is turned on, a radiant power delivered to the second light detector from the first light source is at least 25 percent of a radiant power delivered to the first light detector from the first light source.