PROXIMITY SENSOR MODULE AND ELECTRONIC DEVICE USING SAME
First Claim
1. A proximity sensor module, used in an electronic device comprising:
- a combination sensing element and antenna, working as both an antenna and a sensing element, used to detect whether an external object is in vicinity of the combination sensing element and antenna according to capacitance changes of the combination sensing element and antenna in the presence or absence of an external object in the vicinity; and
a detecting circuit, electrically connected to the combination sensing element and antenna, that detects the capacitance changes, and generates a signal associated with the changes to decrease or increase transmission power transmitted to the combination sensing element and antenna.
1 Assignment
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Accused Products
Abstract
A proximity sensor module used in an electronic device includes a combination sensing element and antenna, and a detecting circuit electrically connected to the combination sensing element and antenna. The combination sensing element and antenna is used to detect whether an external object is in vicinity of the combination sensing element and antenna according to capacitance changes of the combination sensing element and antenna in presence or absence of an external object in the vicinity, the detecting circuit detects the capacitance changes, and generates a signal associated with the changes to decrease or increase transmission power transmitted to the combination sensing element and antenna.
35 Citations
11 Claims
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1. A proximity sensor module, used in an electronic device comprising:
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a combination sensing element and antenna, working as both an antenna and a sensing element, used to detect whether an external object is in vicinity of the combination sensing element and antenna according to capacitance changes of the combination sensing element and antenna in the presence or absence of an external object in the vicinity; and a detecting circuit, electrically connected to the combination sensing element and antenna, that detects the capacitance changes, and generates a signal associated with the changes to decrease or increase transmission power transmitted to the combination sensing element and antenna. - View Dependent Claims (2, 3, 4, 5)
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6. An electronic device, comprising:
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a CPU; a radio frequency (RF) circuit; a proximity sensor module comprising; a combination sensing element and antenna, electrically connected to the RF circuit, working as both an antenna and a sensing element, used to detect whether an external object is in vicinity of the combination sensing element and antenna according to capacitance changes of the combination sensing element and antenna in presence or absence of the external object in the vicinity; a detecting circuit, electrically connected to the combination sensing element and antenna and the CPU, detecting the capacitance changes, and generating a signal associated with the changes to the CPU, the CPU decreasing or increasing transmission power of the RF circuit transmitted to the combination sensing element and antenna according to the signal.
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- 7. The electronic device as claimed in claim 7, wherein a lower transmission power and a higher transmission power is transmitted to the combination sensing element and antenna when the detected external object moves closer to and moves away from, respectively, from the combination sensing element and antenna.
Specification