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US 8,026,898 B2Granted
Low power optical mouse including independent movement detection module
AssigneeMarvell World Trade Ltd.
InventorSehat Sutardja
Life of this patent
Estimating the term…
Abstract
A wireless mouse comprises a movement detection module that detects movement of the wireless mouse. A detection module detects at least one of movement and usage of the wireless mouse during operation. The detection module consumes power at a slower rate than the movement detection module. A control module selectively powers down the movement detection module and wherein after the detection module detects the at least one of movement and usage, the control module powers up the movement detection module.
Claims18
A wireless mouse comprising:
- an optical movement detection module configured to
- emit light onto a mousing surface, and
- detect movement of the wireless mouse based on a reflection of the light emitted onto the mousing surface;
- a movement detection module comprising
- a ball configured to contact the mousing surface and rotate based on relative movement between the wireless mouse and the mousing surface;
- a first roller rotationally coupled to the ball, the first roller configured to rotate about a first axis;
- and
- a sensor module configured to detect movement of the wireless mouse based on a rotation of the first roller about the first axis;
- and
- a control module configured to
- during a time that the wireless mouse is in a stationary position, (i) power down the optical movement detection module and (ii) power up the movement detection module, and
- responsive to the sensor module of the movement detection module detecting movement of the wireless mouse from the stationary position, (i) power up the optical movement detection module and (ii) power down the movement detection module.
9 more elements
Dependencies are inferred from the claim text.