Abstract: A confined data communication system includes a reference generation circuit operable to produce one or more analog reference signals, an analog to digital converter circuit operable to process an analog signal to produce a digital representative signal, a digital filtering circuit operable to filter the digital representative signal to produce an affect value, a data processing module operable to interpret the affect value to produce processed output data, and a processing module operable to set frequency and waveform for each of the one or more analog reference signals, set digital filtering parameters for the digital filtering circuit, set a sampling rate for the analog to digital converter circuit, and set data interpretation parameters for the data processing module.

Abstract: A digital decimation filtering circuit of an analog to digital conversion circuit includes an n-tap anti-aliasing filter operable to receive a 1-bit analog to digital converter (ADC) output signal at an oversampling rate and filter the 1-bit ADC output signal to remove frequencies higher than a selected cut-off frequency to produce an n-bit filtered signal at a first data output rate. The digital decimation filtering circuit further includes a decimator operable to receive the n-bit filtered signal at the first data output rate, decimate the n-bit filtered signal by a decimation factor to produce a set of output signals, and sum the set of outputs to produce a decimated signal at a second data output rate. The first data output rate is greater than the second data output rate.

Abstract: A data sensing circuit includes one or more drive sense circuits operably coupled to a plurality of data sources. The one or more drive sense circuits produces a plurality of digital sense signals regarding the plurality of data sources at an oversampling rate. The data sensing circuit further includes a digital filtering circuit operably coupled to receive, in parallel, at least some of the plurality of digital sense signals and generate, in a serial manner, a plurality of affect values from the least some of the plurality of digital sense signals.

Abstract: A confined data communication system includes a reference generation circuit operable to produce one or more analog reference signals, an analog to digital converter circuit operable to process an analog signal to produce a digital representative signal, a digital filtering circuit operable to filter the digital representative signal to produce an affect value, a data processing module operable to interpret the affect value to produce processed output data, and a processing module operable to set frequency and waveform for each of the one or more analog reference signals, set digital filtering parameters for the digital filtering circuit, set a sampling rate for the analog to digital converter circuit, and set data interpretation parameters for the data processing module.

Abstract: An analog to digital conversion circuit includes an analog to digital converter (ADC) circuit operable to convert an analog signal having an oscillation frequency into a first digital signal having a first data rate frequency. The analog signal includes a set of pure tone components. The first digital signal includes n 1-bit channels. The analog to digital conversion circuit further includes a digital decimation filtering circuit including n anti-aliasing filters operable to sample and filter the n 1-bit channels of the first digital signal to produce n second digital signals and n decimator circuits operable to decimate the n second digital signals to produce n third digital signals at a second data rate frequency. The analog to digital conversion circuit further includes a multiplexor operable to output the n third digital signals at the second data rate frequency on a single bus.

Abstract: Method and apparatus for automatic gain control utilizing sound source position information in a shared space having a plurality of microphones and a plurality of sound sources. Sound signals are received from the microphones. One or more processors locate position information corresponding to each of the sound sources. The processor(s) determine the distance to each of the sound sources from each of the microphones. The processor(s) define a predetermined gain weight adjustment for each of the microphones. The processor(s) apply the defined weight adjustments to the microphones to achieve a consistent volume of the desired plurality of sound sources. The processor(s) maintain a consistent ambient sound level regardless of the position of the sound sources and the applied gain weight adjustments. The processor(s) output a summed signal of the sound sources at a consistent volume with a constant ambient sound level across the plurality of sound source positions.

Abstract: A method includes converting, by n analog to digital converter circuits, n analog signals into n first digital signals having a first data rate frequency; converting, by n digital decimation filtering circuits, the n first digital signals into n second digital signals having a second data rate frequency; and converting, by n digital bandpass filter (BPF) circuits, the n second digital signals into a plurality of outbound digital signals having a third data rate frequency. The coefficients for the taps of a digital BPF circuit is set to produce a bandpass region approximately centered at the oscillation frequency of the analog signal and having a bandwidth tuned for filtering a pure tone component of the analog signal. The first data rate frequency is a first integer multiple of the third data rate frequency. The second data rate frequency is a second integer multiple of the third data rate frequency.

Abstract: A method includes, for a first x-y position of a sensing grid, obtaining first sensed data. The method further includes, for a first sense data layer, determining whether the first sensed data compares favorably to a threshold for the first sense data layer. The method further includes, when the first sensed data compares favorably to the threshold for the first sense data layer; storing a first n-bit value and storing a second n-bit value when it does not. The method further includes, for a second sense data layer, determining whether the first sensed data compares favorably to a threshold for the second sense data layer. The method further includes, when the first sensed data compares favorably to the threshold for the second sense data layer; storing the first n-bit value and storing the second n-bit value when it does not. The method includes similar processing for a second x-y position.

Abstract: A method includes, for a first x-y position of a sensing grid, obtaining first sensed data. The method further includes, for a first sense data layer, determining whether the first sensed data compares favorably to a threshold for the first sense data layer. The method further includes, when the first sensed data compares favorably to the threshold for the first sense data layer; storing a first n-bit value and storing a second n-bit value when it does not. The method further includes, for a second sense data layer, determining whether the first sensed data compares favorably to a threshold for the second sense data layer. The method further includes, when the first sensed data compares favorably to the threshold for the second sense data layer; storing the first n-bit value and storing the second n-bit value when it does not. The method includes similar processing for a second x-y position.

Abstract: A method includes obtaining, by a processing module interacting with a touch screen of a computing device, self and mutual capacitance data from a plurality of drive-sense circuits of the computing device. The method further includes generating, by the processing module, capacitance grid data based on the self and mutual capacitance data. The method further includes determining, by the processing module, a use for the capacitance grid data. The method further includes determining, by the processing module, data requirements for the capacitance grid data based on the use and properties of the capacitance grid. When data reduction is enabled, the method further includes determining, by the processing module, a data reduction scheme based on the data requirements and an output data rate. The method further includes processing, by the processing module, the capacitance grid data in accordance with the data reduction scheme to produce reduced capacitive grid data.

Abstract: An analog to digital conversion circuit includes an analog to digital converter (ADC) circuit operable to convert an analog signal having an oscillation frequency into a first digital signal having a first data rate frequency. The analog signal includes a set of pure tone components. The first digital signal includes n 1-bit channels. The analog to digital conversion circuit further includes a digital decimation filtering circuit including n anti-aliasing filters operable to sample and filter the n 1-bit channels of the first digital signal to produce n second digital signals and n decimator circuits operable to decimate the n second digital signals to produce n third digital signals at a second data rate frequency. The analog to digital conversion circuit further includes a multiplexor operable to output the n third digital signals at the second data rate frequency on a single bus.

Abstract: A system and method for processing and enhancing utility of a sound mask noise signal, including generating, by a signal processor, the sound mask noise signal by modulating a noise signal with embedded additional information, outputting, by a plurality of audio speakers, sound signals comprising the sound mask noise signal with the embedded additional information, and receiving, by one or more microphones, the outputted sound signals comprising the sound mask noise signal, wherein an impulse response between each audio speaker and each microphone is measured in real time based on the embedded additional information.

Abstract: A method includes converting, by n analog to digital converter circuits, n analog signals into n first digital signals having a first data rate frequency; converting, by n digital decimation filtering circuits, the n first digital signals into n second digital signals having a second data rate frequency; and converting, by n digital bandpass filter (BPF) circuits, the n second digital signals into a plurality of outbound digital signals having a third data rate frequency. The coefficients for the taps of a digital BPF circuit is set to produce a bandpass region approximately centered at the oscillation frequency of the analog signal and having a bandwidth tuned for filtering a pure tone component of the analog signal. The first data rate frequency is a first integer multiple of the third data rate frequency. The second data rate frequency is a second integer multiple of the third data rate frequency.

Abstract: A method includes converting, by n analog to digital converter circuits, n analog signals into n first digital signals having a first data rate frequency; converting, by n digital decimation filtering circuits, the n first digital signals into n second digital signals having a second data rate frequency; and converting, by n digital bandpass filter (BPF) circuits, the n second digital signals into a plurality of outbound digital signals having a third data rate frequency. The coefficients for the taps of a digital BPF circuit is set to produce a bandpass region approximately centered at the oscillation frequency of the analog signal and having a bandwidth tuned for filtering a pure tone component of the analog signal. The first data rate frequency is a first integer multiple of the third data rate frequency. The second data rate frequency is a second integer multiple of the third data rate frequency.

Abstract: A method includes obtaining, by a processing module interacting with a touch screen of a computing device, self and mutual capacitance data from a plurality of drive-sense circuits of the computing device. The method further includes generating, by the processing module, capacitance grid data based on the self and mutual capacitance data. The method further includes determining, by the processing module, a use for the capacitance grid data. The method further includes determining, by the processing module, data requirements for the capacitance grid data based on the use and properties of the capacitance grid. When data reduction is enabled, the method further includes determining, by the processing module, a data reduction scheme based on the data requirements and an output data rate. The method further includes processing, by the processing module, the capacitance grid data in accordance with the data reduction scheme to produce reduced capacitive grid data.

Abstract: Method and apparatus for automatic gain control utilizing sound source position information in a shared space having a plurality of microphones and a plurality of sound sources. Sound signals are received from the microphones. One or more processors locate position information corresponding to each of the sound sources. The processor(s) determine the distance to each of the sound sources from each of the microphones. The processor(s) define a predetermined gain weight adjustment for each of the microphones. The processor(s) apply the defined weight adjustments to the microphones to achieve a consistent volume of the desired plurality of sound sources. The processor(s) maintain a consistent ambient sound level regardless of the position of the sound sources and the applied gain weight adjustments. The processor(s) output a summed signal of the sound sources at a consistent volume with a constant ambient sound level across the plurality of sound source positions.

Abstract: Focusing sound signals in a shared 3D space uses an array of physical microphones, preferably disposed evenly across a room to provide even sound coverage throughout the room. At least one processor coupled to the physical microphones does not form beams, but instead preferably forms 1000's of virtual microphone bubbles within the room. By determining the processing gains of the sound signals sourced at each of the bubbles, the location(s) of the sound source(s) in the room can be determined. This system provides not only sound improvement by focusing on the sound source(s), but with the advantage that a desired sound source can be focused on more effectively (rather than steered to) while un-focusing undesired sound sources (like reverb and noise) instead of rejecting out of beam signals. This provides a full three dimensional location and a more natural presentation of each sound within the room.

Abstract: A method includes generating, by a processing module interacting with a touch screen, drive sense data. The method further includes generating, by the processing module, capacitance grid data based on the drive sense data. The method further includes determining, by the processing module, a use for the capacitance grid data. The method further includes determining, by the processing module, data requirements for the capacitance grid data based on the use and properties of the capacitance grid. When data reduction is enabled, the method further includes determining, by the processing module, a data reduction scheme based on the data requirements and an output data rate. The method further includes processing, by the processing module, the capacitance grid data in accordance with the data reduction scheme to produce reduced capacitive gird data. The method further includes providing, by the processing module, the reduced capacitive grid data to a datap circuit.

Abstract: A method includes generating, by a processing module interacting with a touch screen, drive sense data. The method further includes generating, by the processing module, capacitance grid data based on the drive sense data. The method further includes determining, by the processing module, a use for the capacitance grid data. The method further includes determining, by the processing module, data requirements for the capacitance grid data based on the use and properties of the capacitance grid. When data reduction is enabled, the method further includes determining, by the processing module, a data reduction scheme based on the data requirements and an output data rate. The method further includes processing, by the processing module, the capacitance grid data in accordance with the data reduction scheme to produce reduced capacitive gird data. The method further includes providing, by the processing module, the reduced capacitive grid data to a datap circuit.

Abstract: Focusing sound signals in a shared 3D space uses an array of physical microphones, preferably disposed evenly across a room to provide even sound coverage throughout the room. At least one processor coupled to the physical microphones does not form beams, but instead preferably forms 1000's of virtual microphone bubbles within the room. By determining the processing gains of the sound signals sourced at each of the bubbles, the location(s) of the sound source(s) in the room can be determined. This system provides not only sound improvement by focusing on the sound source(s), but with the advantage that a desired sound source can be focused on more effectively (rather than steered to) while un-focusing undesired sound sources (like reverb and noise) instead of rejecting out of beam signals. This provides a full three dimensional location and a more natural presentation of each sound within the room.