Abstract: Sensing systems and methods that utilize zero row sum code division multiplexing (CDM) drive matrices to reduce or eliminate radiative emissions. Measurements corresponding to an input received at a sensing region of the input device are obtained by driving a first subset of transmitters of the input device according to a first portion of a CDM drive matrix, wherein the CDM matrix is a zero row sum matrix, and obtaining first measurement signals with the plurality of receivers, and driving a second subset of the transmitters according to a second portion of the CDM drive matrix, wherein the first and second subsets of transmitters include at least one transmitter in common, and obtaining second measurement signals with the plurality of receivers. An image of the input may be generated based on the obtained measurements.

Abstract: Sensing systems and methods that utilize zero row sum code division multiplexing (CDM) drive matrices to reduce or eliminate radiative emissions. Measurements corresponding to an input received at a sensing region of the input device are obtained by driving a first subset of transmitters of the input device according to a first portion of a CDM drive matrix, wherein the CDM matrix is a zero row sum matrix, and obtaining first measurement signals with the plurality of receivers, and driving a second subset of the transmitters according to a second portion of the CDM drive matrix, wherein the first and second subsets of transmitters include at least one transmitter in common, and obtaining second measurement signals with the plurality of receivers. An image of the input may be generated based on the obtained measurements.

Abstract: Sensing systems and methods that utilize zero row sum code division multiplexing (CDM) drive matrices to reduce or eliminate radiative emissions. Measurements corresponding to an input received at a sensing region of the input device are obtained by driving a first subset of transmitters of the input device according to a first portion of a CDM drive matrix, wherein the CDM matrix is a zero row sum matrix, and obtaining first measurement signals with the plurality of receivers, and driving a second subset of the transmitters according to a second portion of the CDM drive matrix, wherein the first and second subsets of transmitters include at least one transmitter in common, and obtaining second measurement signals with the plurality of receivers. An image of the input may be generated based on the obtained measurements.

Abstract: Sensing systems and methods that utilize zero row sum code division multiplexing (CDM) drive matrices to reduce or eliminate radiative emissions. Measurements corresponding to an input received at a sensing region of the input device are obtained by driving a first subset of transmitters of the input device according to a first portion of a CDM drive matrix, wherein the CDM matrix is a zero row sum matrix, and obtaining first measurement signals with the plurality of receivers, and driving a second subset of the transmitters according to a second portion of the CDM drive matrix, wherein the first and second subsets of transmitters include at least one transmitter in common, and obtaining second measurement signals with the plurality of receivers. An image of the input may be generated based on the obtained measurements.

Abstract: A processing system for position-filtering includes a sensor module and a determination module. The sensor module includes sensor circuitry coupled to sensor electrodes, and is configured to transmit transmitter signals and receive resulting signals with at least a portion of the sensor electrodes. The determination module is configured to determine first positional information for an input object in a sensing region based on the resulting signals, the first positional information including a detected displacement of the input object from a preceding frame, and determine second positional information from the first positional information. The second positional information includes a revised displacement determined by applying a correction factor to the detected displacement, the correction factor being based on a number of frames of the input object being detected in the sensing region, a noise scale, and a finger scale.

Abstract: A processing system for position-filtering includes a sensor module and a determination module. The sensor module includes sensor circuitry coupled to sensor electrodes, and is configured to transmit transmitter signals and receive resulting signals with at least a portion of the sensor electrodes. The determination module is configured to determine first positional information for an input object in a sensing region based on the resulting signals, the first positional information including a detected displacement of the input object from a preceding frame, and determine second positional information from the first positional information. The second positional information includes a revised displacement determined by applying a correction factor to the detected displacement, the correction factor being based on a number of frames of the input object being detected in the sensing region, a noise scale, and a finger scale.