Digitizer system
AssigneeN-trig Ltd.
InventorYuval STERN
Life of this patent
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Abstract
A digitizer system includes a sensing surface, a digitizer sensor that senses fingertip or stylus interaction on the sensing surface, digitizer circuitry that operates the digitizer sensor during an active mode of the digitizer circuitry, wherein the digitizer circuitry operates in one of a sleep mode and an active mode and a wake up circuit that operates during the sleep mode of the digitizer circuitry and triggers a switch from the sleep mode to the active mode. A second sensor operated independently from the digitizer sensor, senses fingertip or stylus touch interaction on the sensing surface during the sleep mode of the digitizer circuitry and provides input to the wake up circuit for triggering the digitizer circuitry in response to sensing the fingertip or stylus touch interaction.
Claims20
A digitizer system comprising:
- a sensing surface;
- a digitizer sensor that senses fingertip or stylus interaction on the sensing surface;
- digitizer circuitry that operates the digitizer sensor during an active mode of the digitizer circuitry, wherein the digitizer circuitry operates in one of a sleep mode and an active mode;
- wake up circuit that operates during the sleep mode of the digitizer circuitry and triggers a switch from the sleep mode to the active mode;
- and
- a second sensor that is operated independently from the digitizer sensor, that senses fingertip or stylus touch interaction on the sensing surface during the sleep mode of the digitizer circuitry and provides input to the wake up circuit for triggering the digitizer circuitry in response to sensing the fingertip or stylus touch interaction.
A digitizer system comprising:
- a sensing surface;
- a digitizer sensor that senses fingertip or stylus interaction on the sensing surface;
- digitizer circuitry that operates the digitizer sensor during an active mode of the digitizer circuitry, wherein the digitizer circuitry operates in one of a sleep mode and an active mode;
- wake up circuit that operates during the sleep mode of the digitizer circuitry and triggers a switch from the sleep mode to the active mode;
- and
- a piezoelectric transducer that senses fingertip or stylus touch interaction on the sensing surface and provides input to the wake up circuit for triggering the digitizer circuitry in response to sensing the fingertip or stylus touch interaction.
A method for operating a digitizer system, the method comprising:
- defining an active mode during which digitizer circuitry operates a digitizer sensor for detecting fingertip or stylus interaction;
- defining a sleep mode during which operation of the digitizer sensor is on standby and digitizer circuitry operates a wake up circuit that interfaces with a piezoelectric transducer;
- receiving input from the piezoelectric transducer responsive to a user touching a sensing surface of the digitizer system with a finger or stylus;
- and
- switching from a sleep mode to an active mode in response to the piezoelectric transducer sensing touch on a sensing surface of the digitizer sensor.
Dependencies are inferred from the claim text.