| 摘要 |
A peripheral device for use with a computer system includes a housing adapted to fit within a user's palm, an optical sensor, a lens, circuitry for processing the signals from the sensor and producing corresponding output data, and a wireless link for relaying the output data from the peripheral device to the computer system. The sensor is useful in acquiring optically-encoded multi-bit information for use by the computer system. Another arrangement includes a substrate on which is formed both a 2D array of optical sensing elements, and a steganographic processor coupled to these elements to effect a steganographic operation. A variety of other novel technologies are also detailed.
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