MICROWAVE MOTION SENSOR
First Claim
1. A microwave motion sensor, comprising:
- a transmitting device transmitting a microwave signal to a space under detection;
a receiving device receiving a reflected microwave signal reflected from the space under detection;
a signal processing device processing the reflected microwave signal received by the receiving device to judge whether there is a disturbance in the space under detection, wherein the signal processing device generates the microwave signal; and
a path switching device coupled to the signal processing device and the transmitting device, wherein the path switching device results in different phase shifts to a plurality of transmission paths which the microwave signal passes through.
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Accused Products
Abstract
A microwave motion sensor including a transmitting device, a signal processing device, a signal processing device, and a path switching device is disclosed. The transmitting device transmits a microwave signal to a space under detection. The receiving device receives a reflected microwave signal reflected from the space under detection. The signal processing device processes the reflected microwave signal received by the receiving device to judge whether there is a disturbance in the space under detection, wherein the signal processing device generates the microwave signal. The path switching device is coupled to the signal processing device and the transmitting device and results in different phase shifts to a plurality of transmission paths travelled by the microwave signal.
15 Citations
14 Claims
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1. A microwave motion sensor, comprising:
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a transmitting device transmitting a microwave signal to a space under detection; a receiving device receiving a reflected microwave signal reflected from the space under detection; a signal processing device processing the reflected microwave signal received by the receiving device to judge whether there is a disturbance in the space under detection, wherein the signal processing device generates the microwave signal; and a path switching device coupled to the signal processing device and the transmitting device, wherein the path switching device results in different phase shifts to a plurality of transmission paths which the microwave signal passes through. - View Dependent Claims (2, 3, 4, 5)
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6. A microwave motion sensor, comprising:
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a transmitting device transmitting a microwave signal to a space under detection; a receiving device receiving a reflected microwave signal reflected from the space under detection; a path switching device coupled to the receiving device, wherein the path switching device results in different phase shifts to a plurality of reception paths which the reflected microwave signal passes through; and a signal processing device processing the reflected microwave signal received by the receiving device to judge whether there is a disturbance in the space under detection, wherein the signal processing device generates the microwave signal. - View Dependent Claims (7, 8, 9)
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10. A microwave motion sensor, comprising:
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a transceiving device, transmitting a microwave signal to a space under detection and receiving a reflected microwave signal reflected from the space under detection; a signal processing device processing the reflected microwave signal received by the transceiving device to judge whether there is a disturbance in the space under detection, wherein the signal processing device generates the microwave signal; and a path switching device coupled to the signal processing device and the transceiving device, wherein the path switching device results in different phase shifts to a plurality of paths which the microwave signal and the reflected microwave signal pass through. - View Dependent Claims (11, 12, 13, 14)
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Specification