Multicolor Visual Feedback for Portable, Non-Volatile Storage
First Claim
1. A portable storage device, comprising:
- an interface,a controller in communication with said interface,a memory in communication with said controller, anda light-emitting-diode assembly in communication with said controller,said light-emitting-diode assembly comprising;
a first and a second light-emitting-diode element, said first light-emitting-diode element emitting a first color of light and said second light-emitting-diode element emitting a second color of light, said second color of light of a different wavelength than said first color of light, said first light-emitting-diode element and said second light-emitting-diode element each independently controlled by said controller, said controller pulse-width-modulating said first light-emitting-diode element and said second light-emitting-diode element light in response to a percentage change related to data such that at most only one of said light-emitting-diode elements is illuminated, and said pulse-width-modulation occurs at a frequency, said frequency ranging between 30 Hertz and 1000 Hertz, whereby said light from said light-emitting-diode assembly appears to the human eye to be of a third color which is in between said first color and said second color in wavelength.
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Abstract
An improved portable storage device is disclosed having an interface, a controller in communication with this interface, a memory in communication with the controller, and a light-emitting-diode assembly in communication with the controller. The light-emitting-diode assembly has a first and a second light-emitting-diode element, the first and second light-emitting-diode elements emitting a first and a second color of light, respectively. The first light-emitting-diode element and said second light-emitting-diode element each independently controlled by the controller via pulse-width-modulation, to produce a third color which appears to be in between the first and second colors in wavelength, this third color indicative of the percent completion of an I/O task or the usage of the memory.
13 Citations
20 Claims
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1. A portable storage device, comprising:
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an interface, a controller in communication with said interface, a memory in communication with said controller, and a light-emitting-diode assembly in communication with said controller, said light-emitting-diode assembly comprising; a first and a second light-emitting-diode element, said first light-emitting-diode element emitting a first color of light and said second light-emitting-diode element emitting a second color of light, said second color of light of a different wavelength than said first color of light, said first light-emitting-diode element and said second light-emitting-diode element each independently controlled by said controller, said controller pulse-width-modulating said first light-emitting-diode element and said second light-emitting-diode element light in response to a percentage change related to data such that at most only one of said light-emitting-diode elements is illuminated, and said pulse-width-modulation occurs at a frequency, said frequency ranging between 30 Hertz and 1000 Hertz, whereby said light from said light-emitting-diode assembly appears to the human eye to be of a third color which is in between said first color and said second color in wavelength. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. A portable storage device, comprising:
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an interface, a controller in communication with said interface, a memory in communication with said controller, and a light-emitting-diode assembly in communication with said controller, said controller varying the color of light emitted by said light-emitting-diode assembly based upon a percentage change related to data. - View Dependent Claims (16, 17, 18, 19, 20)
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Specification