Granted Patent B2

US 12,203,846 · App. 17/331,811 · Granted Jan 21, 2025

Inventors: Yun-Chung Na (San Jose, CA); Der-Song Lin (Hsinchu County, TW); Hung-Chih Chang (Hsinchu County, TW); Shu-Lu Chen (Hsinchu County, TW)

Assignee: ARTILUX, INC.

G01N21/359G01N2201/126

Abstract

Claims (28)

1. A sensing apparatus, comprising:

a sensor comprising a first light source configured to transmit a first transmitting light having a first wavelength, a second light source configured to transmit a second transmitting light having a second wavelength; and a photo-detecting unit configured to absorb a first incident light having the first wavelength to generate a first detecting signal and a second incident light having the second wavelength to generate a second detecting signal;

a calculation circuit coupled to the sensor to output a calculating result in response to the first detecting signal and the second detecting signal, wherein the calculation circuit is configured to:

perform a pre-calculation on the first detecting signal and the second detecting signal to output a pre-calculation result;

perform a first analysis on the pre-calculation result to output a first signal;

perform a second analysis on the first detecting signal and the second detecting signal to output a second signal; and

predict the calculating result according to the first signal and the second signal; and

an adjustment circuit, coupled to the calculation circuit, configured to dynamically adjust a power mode associated with the sensing apparatus according to the calculating result,

wherein the calculating result comprises a material type of an object, a behavior of a user using the sensing apparatus, or a health data.

2. The sensing apparatus of claim 1 , wherein the sensing apparatus includes an earphone or a wearable watch.

3. The sensing apparatus of claim 1 , wherein the first wavelength is within a NIR spectrum or a SWIR spectrum, and wherein the second wavelength is within the SWIR spectrum.

4. The sensing apparatus of claim 1 , wherein the calculation circuit can be configured to calculate a magnitude difference between the first detecting signal and the second detecting signal.

5. The sensing apparatus of claim 1 , wherein the calculation circuit can be configured to calculate a magnitude ratio between the first detecting signal and the second detecting signal.

6. The sensing apparatus of claim 1 , wherein the power mode comprises a low power mode and a normal power mode.

7. The sensing apparatus of claim 6 , wherein the sensing apparatus is configured to play music or start a software application in response to the adjustment circuit adjusting the power mode into the normal power mode.

8. The sensing apparatus of claim 6 , wherein the sensing apparatus is configured to stop playing music or disable a software application in response to the adjustment circuit adjusting the power mode into the low power mode.

9. The sensing apparatus of claim 1 , wherein the material type includes skin.

10. The sensing apparatus of claim 1 , wherein the calculating result indicates a health data of a user being sensed by the sensing apparatus.

11. The sensing apparatus of claim 1 , wherein the calculating result indicates a moisture content of an object being sensed by the sensing apparatus.

12. The sensing apparatus of claim 1 , wherein the photo-detecting unit comprises a first photodetector and a second photodetector, wherein the first photodetector has a first light absorption material and the second photodetector has a second light absorption material, and wherein the first light absorption material and the second light absorption material are different.

13. The sensing apparatus of claim 12 , wherein the first light absorption material comprises silicon, and the second light absorption material comprises germanium or III- V group material.

14. The sensing apparatus of claim 1 , wherein the photo-detecting unit comprises a first photodetector and a second photodetector having a same absorption material as the first photodetector, wherein the absorption material comprises germanium or III-V group material.

15. The sensing apparatus of claim 1 , wherein the photo-detecting unit comprises a single photodetector configured to absorb the first incident light during a first time period and the second incident light during a second time period.

16. The sensing apparatus of claim 1 , wherein the sensor further comprises a controller configured to generate a signal to control the first light source and the second light source, and wherein the first light source, the second light source, and the photo-detecting unit are disposed on the controller and electrically connected to the controller via bonding wires.

17. The sensing apparatus of claim 16 , wherein the photo-detecting unit comprises a bonding pad located on a surface of the photo-detecting unit that is not in direct contact with the controller, and wherein the bonding pad is connected to the controller via at least one of the bonding wires.

18. The sensing apparatus of claim 16 , wherein the first light source comprises a bonding pad located on a surface of the first light source that is not in direct contact with the controller, and wherein the bonding pad is connected to the controller via at least one of the bonding wires.

19. The sensing apparatus of claim 1 , wherein the sensor further comprises a controller, wherein the photo-detecting unit is wafer bonded to the controller, and wherein the first light source is electrically connected to the controller by a bonding wire.

20. The sensing apparatus of claim 19 , further comprising a plurality of interconnections between the photo-detecting unit and the controller.

Assignments (2)

Continuity (4)

References Cited (22)