CN-121987145-A - Detection device and detection method

Abstract

A detection device includes a sound generator, an optical transmitter, a composite waveguide, an optical receiver, a processor, and a housing element. The sound generator can generate a sound signal. The optical transmitter may generate an incident optical signal. The composite waveguide can transmit the sound signal and the incident light signal to a human body part, so that the human body part returns a reflected light signal to the composite waveguide. The composite waveguide is further configured to generate a mixed optical signal based on the incident optical signal and the reflected optical signal. The optical receiver may receive the mixed optical signal. The processor is coupled to the optical receiver, wherein the processor can obtain physiological information of the human body part according to the mixed light signal. The sound generator, optical transmitter, composite waveguide, optical receiver, and processor are all disposed within the housing element.

Inventors

• WU JUNYI
• PU DAJUN
• CHEN JIANZHI
• GUO YANLIANG

Assignees

• 宏达国际电子股份有限公司

Dates

Publication Date

20260508

Application Date

20241211

Priority Date

20241108

Claims (20)

1. 1. A detection device for detecting a human body part, comprising: a sound generator for generating a sound signal; an optical transmitter for generating an incident light signal; A composite waveguide for transmitting the sound signal and the incident light signal to the human body part so that the human body part transmits a reflected light signal back to the composite waveguide, wherein the composite waveguide generates a mixed light signal according to the incident light signal and the reflected light signal; An optical receiver for receiving the mixed optical signal; A processor coupled to the optical receiver, wherein the processor obtains physiological information of the human body part according to the mixed light signal, and A housing element, wherein the sound generator, the optical transmitter, the composite waveguide, the optical receiver, and the processor are disposed within the housing element.
2. 2. The detecting device according to claim 1, wherein the detecting device is a wearable device.
3. 3. The detecting device according to claim 2, wherein the wearable device is an earphone device.
4. 4. The detecting device according to claim 1, wherein the human body part is an eardrum.
5. 5. The detecting device for detecting the rotation of a motor rotor as claimed in claim 1, wherein the incident light signals, the reflected light signals and the mixed light signals are all infrared signals.
6. 6. The detecting device for detecting the rotation of a motor rotor as claimed in claim 1, wherein the composite waveguide includes an acoustic waveguide and an optical waveguide.
7. 7. The detecting device for detecting the rotation of a motor rotor as claimed in claim 6, wherein the optical waveguide is surrounded by the acoustic waveguide.
8. 8. The detecting device for detecting the rotation of a motor rotor as claimed in claim 1, wherein a self-mixing effect occurs between the incident light signals and the reflected light signals within the composite waveguide, thereby forming the mixed light signals.
9. 9. The detecting device of claim 1, further comprising: And the converter is coupled between the optical receiver and the processor, wherein the converter outputs a main signal to the processor according to the mixed optical signal.
10. 10. The detecting device according to claim 1, wherein the housing member is an earphone housing.
11. 11. The detecting device for detecting the rotation of a motor rotor as claimed in claim 1, wherein the optical transmitter uses a lateral emission mechanism.
12. 12. The detecting device for detecting the rotation of a motor rotor as claimed in claim 1, wherein the optical receiver uses a lateral receiving mechanism.
13. 13. A detection method comprises the following steps: Generating an acoustic signal; generating an incident light signal; transmitting the sound signal and the incident light signal to a human body part through a composite waveguide, so that the human body part transmits a reflected light signal back to the composite waveguide; generating a mixed optical signal according to the incident optical signal and the reflected optical signal through the composite waveguide; Receiving the mixed optical signal, and And obtaining physiological information of the human body part according to the mixed light signal.
14. 14. The method of claim 13, wherein the human body part is an eardrum.
15. 15. The method of claim 13, wherein the incident light signal, the reflected light signal, and the mixed light signal are all infrared signals.
16. 16. The detection method of claim 13, wherein the composite waveguide comprises an acoustic waveguide and an optical waveguide.
17. 17. The detection method of claim 16, wherein the optical waveguide is surrounded by the acoustic waveguide.
18. 18. The detection method of claim 13, wherein a self-mixing effect occurs between the incident optical signal and the reflected optical signal within the composite waveguide, thereby forming the mixed optical signal.
19. 19. The detection method of claim 13, further comprising: a primary signal is output by a converter according to the mixed optical signal.
20. 20. The detection method of claim 13, further comprising: transmitting the incident optical signal using a side-emission mechanism, and A lateral reception mechanism is used to receive the mixed optical signal.

Description

Detection device and detection method Technical Field The present invention relates to a detection device, and more particularly, to a detection device and a detection method thereof. Background The physiological signal detecting device is a common detecting element. However, when applied to the field of Virtual Reality (VR) or augmented Reality (Augmented Reality, AR), the accuracy of conventional physiological signal detection devices is often insufficient. In view of this, a completely new solution has to be proposed to overcome the dilemma faced by the prior art. Disclosure of Invention In a preferred embodiment, the present invention provides a detecting apparatus for detecting a human body part, comprising a sound generator for generating a sound signal, an optical transmitter for generating an incident light signal, a composite waveguide for transmitting the sound signal and the incident light signal to the human body part so that the human body part returns a reflected light signal to the composite waveguide, wherein the composite waveguide further generates a mixed light signal according to the incident light signal and the reflected light signal, an optical receiver for receiving the mixed light signal, a processor coupled to the optical receiver, wherein the processor obtains a physiological information of the human body part according to the mixed light signal, and a housing element, wherein the sound generator, the optical transmitter, the composite waveguide, the optical receiver, and the processor are all disposed within the housing element. In some embodiments, the detection device is a wearable device. In some embodiments, the wearable device is an earphone device. In some embodiments, the human body part is an eardrum. In some embodiments, the incident light signal, the reflected light signal, and the mixed light signal are all infrared signals. In some embodiments, the composite waveguide includes an acoustic waveguide and an optical waveguide. In some embodiments, the optical waveguide is surrounded by the acoustic waveguide. In some embodiments, a self-mixing effect occurs between the incident optical signal and the reflected optical signal within the composite waveguide, thereby forming the mixed optical signal. In some embodiments, the detection device further comprises a converter coupled between the optical receiver and the processor, wherein the converter outputs a main signal to the processor according to the mixed optical signal. In some embodiments, the housing element is a headset housing. In some embodiments, the optical transmitter uses a lateral emission mechanism. In some embodiments, the optical receiver uses a lateral reception mechanism. In another preferred embodiment, the present invention provides a detection method, comprising the steps of generating an acoustic signal, generating an incident light signal, transmitting the acoustic signal and the incident light signal to a human body part through a composite waveguide, so that the human body part transmits a reflected light signal back to the composite waveguide, generating a mixed light signal according to the incident light signal and the reflected light signal through the composite waveguide, receiving the mixed light signal, and obtaining physiological information of the human body part according to the mixed light signal. In some embodiments, the detection method further comprises outputting a primary signal according to the mixed light signal through a converter. In some embodiments, the detection method further includes transmitting the incident optical signal using a lateral transmit mechanism and receiving the mixed optical signal using a lateral receive mechanism. Drawings Fig. 1 is a schematic diagram of a detection apparatus according to an embodiment of the invention. Fig. 2 is a schematic diagram of a detection device according to an embodiment of the invention. Fig. 3 is a flowchart illustrating a detection method according to an embodiment of the invention. Symbol description: 100,200 detection device 110,210 Sound Generator 120,220 Optical transmitter 130,230 Composite waveguide 140,240 Optical receiver 150,250 Processor 160,260 Housing element 190 Human body part 245 Converter 270 Acoustic waveguide 280 Optical waveguide 290 Eardrum membrane D, specific distance Physiological information IA S310, S320, S330, S340, S350, S360 step SA main signal SR, reflected light Signal ST: incident light Signal SU: sound Signal SX mixed optical signal Detailed Description The following detailed description of the invention refers to the accompanying drawings, which illustrate specific embodiments of the invention. Certain terms are used throughout the description and claims to refer to particular components. Those skilled in the art will appreciate that a hardware manufacturer may refer to the same element by different names. The description and claims do not take the form of an element differentiated by name, but