Computer graphics processing and selective visual display system – Display peripheral interface input device – Stylus
Patent
1997-01-07
1999-10-26
Hofsass, Jeffery A.
Computer graphics processing and selective visual display system
Display peripheral interface input device
Stylus
178 1804, 320107, 320115, 345180, G09G 500
Patent
active
059736771
ABSTRACT:
A pen based workslate computer having a detachable, rechargeable stylus is disclosed. The workslate computer includes a housing supporting computer electronics and a stylus charging station defining an opening adapted to receive the detachable stylus. The housing also supports a visible interactive display screen assembly including a sensing assembly. Depending on the position of actuators of the stylus, signal generation circuitry of the stylus generates one of a plurality of signals having different frequencies. The generated signal is received by the sensing assembly and correlated with a position of the stylus with respect to the display screen assembly by the sensing assembly thereby allowing data and/or commands to be input by an operator manipulating a signal generation end of the stylus to "pick" icons or other representations displayed on a LCD screen. When the stylus is inserted in the charging station opening it is held in place by a clamping mechanism and charging circuitry of the charging station recharges a rechargeable power source of the stylus.
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Title: Metanetics Corporation IR-2000 Hand Held Image Reader User's Guide. To the best of Applicant's knowledge, this publication was published more than one year prior to the filing date of the above-named patent application.
Hofsass Jeffery A.
Telxon Corporation
Tweel , Jr. John
LandOfFree
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