Finger motion detecting apparatus and method
First Claim
1. A finger-motion detecting apparatus comprising:
- a sensing unit to be disposed on a wrist of a subject person, said sensing unit configured to output a measurement signal which is in a form of an infrared ray into the wrist of the subject person and to receive a reflected signal of the measurement signal according to motion of tendons in the wrist of the subject person;
a signal control unit configured to control whether the measurement signal is outputted and to adjust the measurement signal to optimize conditions for sensing changes of tendons in the wrist in the reflected signal; and
a finger-motion recognizing unit configured to detect finger motion of the subject person from the reflected signal.
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Abstract
The present invention relates to a finger-motion detecting apparatus and method and includes a sensing unit to be disposed on a wrist of a subject person, said sensing unit being configured to output a measurement signal into the wrist of the subject person and to receive a reflected signal of the measurement signal according to the motion of tendons in the wrist of the subject person, a signal control unit configured to control whether the measurement signal is outputted and to adjust the measurement signal on the basis of the reflected signal, and a finger-motion recognizing unit configured to detect finger motion of the subject person from the reflected signal. According to the present invention, since a sensor capable of detecting finger motion is worn on a wrist, the problem of inconvenience in existing methods is resolved.
77 Citations
18 Claims
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1. A finger-motion detecting apparatus comprising:
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a sensing unit to be disposed on a wrist of a subject person, said sensing unit configured to output a measurement signal which is in a form of an infrared ray into the wrist of the subject person and to receive a reflected signal of the measurement signal according to motion of tendons in the wrist of the subject person; a signal control unit configured to control whether the measurement signal is outputted and to adjust the measurement signal to optimize conditions for sensing changes of tendons in the wrist in the reflected signal; and a finger-motion recognizing unit configured to detect finger motion of the subject person from the reflected signal. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A finger-motion detecting method comprising:
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outputting a measurement signal which is in a form of an infrared ray into a wrist of a subject person; receiving a reflected signal of the measurement signal according to motion of tendons in the wrist of the subject person; adjusting the measurement signal to optimize conditions for sensing changes of tendons in the wrist in the reflected signal; and detecting finger motion of the subject person from the reflected signal during a time period when the measurement signal is output while being adjusted. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18)
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Specification