VALIDATED TOUCHSCREEN STYLUS INTERACTION METHOD

摘要

A system and method are provided for validating a signature on a touchscreen using a smart stylus. Software residing on a touchscreen device disables touch input from sources other than the stylus. In one embodiment, the stylus wirelessly transmits a stylus identifier to the touchscreen device to identify the stylus to the device. The stylus may also have a stylus tip that produces an encoded voltage pulse sequence that is used to identify the stylus to the device. A stylus ID is associated with an encoded voltage pulse. The touchscreen device can look up the stylus ID in a database, determine the encoded voltage pulse associated with the stylus ID, and determine that a voltage pulse transmitted by the stylus tip is the pulse associated with the stylus ID, thus validating the source of data input on the touchscreen.

主权项

1. A touchscreen input validation system comprising:
a) a touch-enabled device having
i) a display screen,ii) a touchscreen input interface for receiving touch input data,iii) a device wireless data receiver,iv) a device processor, andv) a tangible, non-transitory device memory; b) a touchscreen stylus having
i) a stylus tip,ii) a stylus wireless data transmitter transmitting a first stylus identifier for the touchscreen stylus,iii) a pulse generator outputting a first voltage pulse pattern to the stylus tip; and c) computer software logic residing on the device memory, the computer software logic programming the device processor to
i) receive the first stylus identifier via the device wireless data receiver,ii) receive the first voltage pulse pattern from the stylus tip via the touchscreen input interface,iii) query stylus data records to verify that the first stylus identifier is associated with the first voltage pulse pattern,iv) receive touch input data from the stylus tip via the touchscreen input interface, andv) store validation information validating that the received touch input data was received from the stylus.