Distance detection method and distance detection device using the same
AssigneeGeneralplus Technology Inc.
InventorLi Sheng LO
Life of this patent
Estimating the term…
Abstract
Distance detection method and device are provided. The distance detection method comprises: providing a directional signal emitting module; providing a directional signal receiving module having a constant bandwidth; providing a distance detection signal to the directional signal emitting module; changing a frequency of the distance detection signal provided to the directional signal emitting module, and judging whether the directional signal receiving module can decode a reflected directional signal into a received signal; and judging a distance between an external object and the directional signal receiving module according to whether the received signal corresponding to the frequency of the distance detection signal can be decoded.
Claims17
A distance detection method, comprising the steps of:
- providing a directional signal emitting module;
- providing a directional signal receiving module having a constant bandwidth;
- providing a distance detection signal to the directional signal emitting module;
- changing a frequency of the distance detection signal provided to the directional signal emitting module, and judging whether the directional signal receiving module can decode a reflected directional signal into a received signal;
- and
- judging a distance between an external object and the directional signal receiving module according to whether the received signal corresponding to the frequency of the distance detection signal can be decoded.
A distance detection device, comprising:
- a directional signal emitting module;
- a directional signal receiving module having a constant bandwidth;
- and
- a microprocessor comprising a first connection port and a second connection port, wherein the first connection port of the microprocessor is coupled to the directional signal emitting module, and the second connection port of the microprocessor is coupled to the directional signal receiving module, wherein the microprocessor provides a distance detection signal to the directional signal emitting module through the first connection port;
- wherein the microprocessor changes a frequency of the distance detection signal provided to the directional signal emitting module, and judges whether the directional signal receiving module can decode a reflected directional signal into a received signal, and
- the microprocessor judges a distance between an external object and the directional signal receiving module according to whether the received signal corresponding to the frequency of the distance detection signal can be decoded.
Dependencies are inferred from the claim text.