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US 2021/0240325 A1Published application
Power efficient stylus for an electronic device
AssigneeShapirten Laboratories LLC
InventorJohn S. SMITH
Life of this patent
Estimating the term…
Abstract
Systems, methods, and computer-readable media for enabling a power efficient stylus for an electronic device are provided.
Claims32
-42. (canceled)
A method for detecting an accessory on an input surface of an input component of an electronic device that comprises a matrix of a plurality of transmit electrodes and a plurality of receive electrodes, the method comprising:
- transmitting, in a transmit pattern according to a multi-stim matrix, a transmit signal on each transmit electrode of at least a subset of the plurality of transmit electrodes;
- sensing a receive signal on each receive electrode of at least a subset of the plurality of receive electrodes;
- extracting, from each sensed receive signal, data indicative of a non-linear aspect of the transmit signal;
- and
- estimating a position of the accessory on the input surface based on the extracted data.
2 more elements
An electronic device comprising:
- an input component comprising:
- an input surface;
- and
- a matrix underneath the input surface comprising:
- a plurality of transmit electrodes;
- and
- a plurality of receive electrodes;
- and
- processing circuitry configured to:
- transmit, according to a multi-stim matrix, a transmit signal on each transmit electrode of at least a subset of the plurality of transmit electrodes;
- sense a receive signal on each receive electrode of at least a subset of the plurality of receive electrodes;
- extract, from each sensed receive signal, data indicative of a non-linear aspect of the transmit signal;
- and
- estimate a position of an accessory on the input surface based on the extracted data.
11 more elements
An electronic device input component comprising:
- an input surface;
- a plurality of electrodes;
- and
- processing circuitry configured to:
- provide a transmit waveform on each electrode of at least a subset of the plurality of electrodes;
- detect a receive waveform on each electrode of at least another subset of the plurality of electrodes;
- extract, from each detected receive waveform, data indicative of asymmetric distortion of the transmit waveform;
- and
- determine a location of an accessory on the input surface based on the extracted data.
6 more elements
-68. (canceled)
Dependencies are inferred from the claim text.