Optical sensing apparatus and measuring method thereof
First Claim
1. An optical sensing apparatus, comprising:
- at least one light sensor, disposed on a substrate and configured to sense a light reflection signal in a sensing area of the optical sensing apparatus;
a plurality of light-emitting sources, disposed on the substrate and around the at least one light sensor and configured to provide an optical signal to be transmitted into a human tissue, wherein the optical signal is reflected to generate the light reflection signal in the human tissue;
a controller, electrically connected to the at least one light sensor and the light-emitting sources and configured to determine whether a position of the human tissue is changed in the sensing area according to the light reflection signal, wherein the controller drives at least one light-emitting source of the light-emitting sources and adjusts light intensity of the at least one of the light-emitting sources to provide the optical signal according to the position of the human tissue in the sensing area; and
at least one light isolation wall, disposed between and spaced apart from the at least one light sensor and each of the light-emitting sources on the substrate, wherein the at least one light isolation wall is configured to isolate any optical signal, generated by any of the plurality of the light-emitting sources and not reflected from the human tissue, from being transmitted into the at least one light sensor.
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Accused Products
Abstract
An optical sensing apparatus including a light sensor, a plurality of light-emitting devices, and a controller is provided. The light sensor is disposed on a substrate. The light sensor senses a light reflection signal in a sensing area of the optical sensing apparatus. The light-emitting devices are disposed on the substrate and around the light sensor. The light-emitting devices provide an optical signal to be transmitted into the human tissue. Then, the optical signal is reflected by the human tissue to generate the light reflection signal. The controller determines whether the position of the human tissue has been changed in the sensing area. The controller drives at least one light-emitting device of the light-emitting devices and adjusts the light intensity thereof to provide the appropriate optical signal. Besides, a measuring method of the optical sensing apparatus is proposed.
25 Citations
27 Claims
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1. An optical sensing apparatus, comprising:
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at least one light sensor, disposed on a substrate and configured to sense a light reflection signal in a sensing area of the optical sensing apparatus; a plurality of light-emitting sources, disposed on the substrate and around the at least one light sensor and configured to provide an optical signal to be transmitted into a human tissue, wherein the optical signal is reflected to generate the light reflection signal in the human tissue; a controller, electrically connected to the at least one light sensor and the light-emitting sources and configured to determine whether a position of the human tissue is changed in the sensing area according to the light reflection signal, wherein the controller drives at least one light-emitting source of the light-emitting sources and adjusts light intensity of the at least one of the light-emitting sources to provide the optical signal according to the position of the human tissue in the sensing area; and at least one light isolation wall, disposed between and spaced apart from the at least one light sensor and each of the light-emitting sources on the substrate, wherein the at least one light isolation wall is configured to isolate any optical signal, generated by any of the plurality of the light-emitting sources and not reflected from the human tissue, from being transmitted into the at least one light sensor. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. A measuring method of an optical sensing apparatus, wherein the optical sensing apparatus comprises a plurality of light-emitting sources, the measuring method comprising:
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driving a first combination of the light-emitting sources, adjusting light intensity of the first combination to provide a first optical signal to be transmitted into a human tissue, and sensing a first light reflection signal generated by the first optical signal reflected in the human tissue; determining whether a position of the human tissue in a sensing area is changed according to the first light reflection signal; if the position of the human tissue in the sensing area is changed, selecting a second combination of the light-emitting sources, adjusting light intensity of the second combination to provide a second optical signal to be transmitted into the human tissue, and sensing a second light reflection signal generated by the second optical signal reflected in the human tissue; determining whether an amplitude of the second light reflection signal is within a predetermined range; if the amplitude of the second light reflection signal is within the predetermined range, driving the second combination of the light-emitting sources, adjusting the light intensity of the second combination to provide the second optical signal, and calculating a physiological signal corresponding to the second light reflection signal having the amplitude within the predetermined range; and gradually decreasing light intensity of the rest of the light-emitting sources which do not provide the first optical signal nor the second optical signal. - View Dependent Claims (17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27)
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Specification