Hand-writing input apparatus
First Claim
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1. An electronic tablet which receives handwritten information via an input pen including a receptacle for the pen and a detector operative to detect the presence of the pen in the receptacle.
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Accused Products
Abstract
An electronic tablet which receives handwritten input via an input pen, including a receptacle for the pen and a detector operative to detect the presence of the pen in the receptacle. Preferably, a warning signal generator is also provided to generate, at appropriate times, a warning signal indicating absence of the pen from the receptacle.
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Citations
16 Claims
- 1. An electronic tablet which receives handwritten information via an input pen including a receptacle for the pen and a detector operative to detect the presence of the pen in the receptacle.
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7. An electronic tablet comprising:
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a housing; a combination display and input surface; an untethered pen used to input handwritten information via the display and input surface; a receptacle disposed with the housing within which is releasably received the pen; a pen detector operatively associated with the receptacle that detects the absence of the pen in the receptacle; a power detector operative to detect non-provision of operational power to the tablet; and a warning signal generator operatively coupled to the power detector and pen detector that generates a warning signal when non-provision of operating power to the tablet and absence of the pen from the receptacle are concurrently detected. - View Dependent Claims (8, 9, 10, 11, 12)
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13. An electronic tablet, comprising:
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a substantially rectangular housing with a top face; an input/display surface disposed at said top face; a cover attached to said housing and operative to move between open and closed positions, said cover overlying said input/display surface in its closed position; an untethered pen used to input handwritten information via said input/display surface; a receptacle disposed in said housing within which is received said pen; and a detector associated with the receptacle and operative to detect the absence of the pen from the receptacle.
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14. An electronic tablet comprising:
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a pen used to input handwritten information into the tablet; a receptacle within said tablet within which is received said pen; and means for detecting receipt of said pen within said receptacle. - View Dependent Claims (15, 16)
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Specification