KEYBOARD MODULE AND DISPLAY SYSTEM
First Claim
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1. A keyboard module configured to detect and output a physiological characteristic of a finger and a digital signal, the keyboard module comprising:
- a plurality of keyboard keys;
a first light source providing light of a first wavelength to the finger;
a second light source providing light of a second wavelength to the finger;
a light control unit configured to control on-states of the first light source and the second light source;
at least one image sensor receiving reflected light from the finger at a sampling frequency to generate a plurality of first image frames corresponding to the on-states of the first light source and a plurality of second image frames corresponding to the on-states of the second light source; and
a processing unit configured to calculate the physiological characteristic according to the first image frames and the second image frames, and to generate the digital signal according to an operating state of the keyboard keys.
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Abstract
There is provided a keyboard module including a plurality of keyboard keys, an optical finger mouse and a transmission interface. The keyboard keys are configured to trigger a digital signal. The optical finger mouse is configured to detect a physiological characteristic and a displacement. The transmission interface is configured to send the digital signal, the physiological characteristic and the displacement to a display device. There is further provided a display system.
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Citations
20 Claims
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1. A keyboard module configured to detect and output a physiological characteristic of a finger and a digital signal, the keyboard module comprising:
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a plurality of keyboard keys; a first light source providing light of a first wavelength to the finger; a second light source providing light of a second wavelength to the finger; a light control unit configured to control on-states of the first light source and the second light source; at least one image sensor receiving reflected light from the finger at a sampling frequency to generate a plurality of first image frames corresponding to the on-states of the first light source and a plurality of second image frames corresponding to the on-states of the second light source; and a processing unit configured to calculate the physiological characteristic according to the first image frames and the second image frames, and to generate the digital signal according to an operating state of the keyboard keys. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A keyboard module for being operated by a user, the keyboard module comprising:
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a plurality of keyboard keys configured to trigger a digital signal; an optical finger mouse configured to detect a physiological characteristic of the user and a finger displacement; a communication unit configured to perform at least one of an encoding process, a sequential process and a compressing process on the digital signal, the physiological characteristic and the finger displacement; and a transmission interface configured to output the processed digital signal, the processed physiological characteristic and the processed finger displacement. - View Dependent Claims (11, 12, 13, 14)
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15. A display system, comprising:
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a display device configured to display images; and a keyboard module configured to output a digital signal and a physiological characteristic to the display device to control the display device to update the images being displayed according to the digital signal and to display the physiological characteristic. - View Dependent Claims (16, 17, 18, 19, 20)
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Specification