Actuator for a camera module
AssigneeSamsung Electro-Mechanics Co., Ltd.
InventorsSang Hyun MIN, Jae Hyung LEE, Kwang Mook LEE
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Abstract
An actuator includes an oscillating unit including two or more oscillation circuits each configured to output an oscillation signal including a frequency, which is changed in response to movement of a detection target, a frequency down-converting unit configured to down-convert frequencies of two or more oscillation signals respectively output from the two or more oscillation circuits, and a determining unit configured to calculate a position of the detection target in response to two or more down-converted oscillation signals output from the frequency down-converting unit.
Claims20
An actuator, comprising:
- an oscillating unit comprising two or more oscillation circuits each configured to output an oscillation signal comprising a frequency, which is changed in response to movement of a detection target;
- a frequency down-converting unit configured to down-convert frequencies of two or more oscillation signals respectively output from the two or more oscillation circuits;
- and
- a determining unit configured to calculate a position of the detection target in response to two or more down-converted oscillation signals output from the frequency down-converting unit.
An actuator, comprising:
- an oscillating unit comprising two or more oscillation circuits respectively configured to output oscillation signals of which frequencies are changed in response to movement of a detection target;
- a frequency down-converting unit configured to increase frequency change ratios of two or more oscillation signals respectively output from the two or more oscillation circuits;
- and
- a determining unit configured to calculate a position of the detection target in response to each of two or more down-converted oscillation signals output from the frequency down-converting unit.
An actuator, comprising:
- an oscillating unit comprising a first oscillation circuit configured to output a first oscillation signal comprising a first frequency that changes in response to a movement of a detection target, and a second oscillation circuit configured to output a second oscillation signal comprising a second frequency that changes in response to the movement of the detection target;
- a frequency down-converting unit configured to down-convert the first and second frequencies;
- and
- a determining unit configured to calculate a position of the detection target in response to the down-converted first and second frequencies.
Dependencies are inferred from the claim text.