System to detect a power management system resume event from a stylus and touch screen
AssigneeKoninklijke Philips Electronics N.V.
InventorsPeter Chambers, Omer Lem Wehunt, Jr.
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AssigneeKoninklijke Philips Electronics N.V.
InventorsPeter Chambers, Omer Lem Wehunt, Jr.
Estimating the term…
A system to detect a power management system resume event from a stylus and touch screen. When an electronic device equipped with a touch screen display is within its quiescent low power state, the present invention enables an operator to activate it by touching a stylus or their finger to its touch screen display. Specifically, an embodiment in accordance with the present invention includes a comparator installed within an electronic touch screen device. While the electronic touch screen device is within its quiescent low power state, the comparator determines whether the touch screen display has been touched by comparing an output voltage signal transmitted by the touch screen display with a reference voltage signal. When the touch screen display is touched, the voltage of the output voltage signal becomes greater than the voltage of the reference voltage signal, causing the comparator to transmit a resume event signal. The resume event signal causes the electronic touch screen device to wake up from its quiescent low power state.
A system for activating an electronic touch screen device from a quiescent low power state, said system comprising:
An electronic touch screen device wake up system, said system comprising:
A method for activating an electronic touch screen device from a quiescent low power state, said method comprising:
Dependencies are inferred from the claim text.