1. New Apple patent describes an “Active Stylus”.
While a traditional stylus is merely a more accurate ‘poking device’, able to be used on a smaller touchscreen with more accuracy than a fingertip, some such as the Samsung S Pen have run into problems...

    New Apple patent describes an “Active Stylus”.

    While a traditional stylus is merely a more accurate ‘poking device’, able to be used on a smaller touchscreen with more accuracy than a fingertip, some such as the Samsung S Pen have run into problems with some users reporting slow response times from the stylus. The new Apple patent bills itself as being an 'active stylus’, with embedded electronics able to make for a more sensitive and responsive input device.

    Unlike conventional styluses which work passively by blocking electric field lines between the drive and sense electrodes of a capacitive touch sensor panel, the styluses disclosed in this patent filing can either act as a drive electrode to create an electric field between the drive electrode and the sense lines of a mutual capacitive touch sensor panel, or as a sense electrode for sensing capacitively coupled signals from one or more stimulated drive rows and columns of the touch sensor panel or both.

    These active styluses can significantly improve stylus sensing on a mutual capacitive touch sensor panel without incurring significant additional cost.

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