A digital PWM modulator modulates a digital input signal to drive a PWM signal to a PWM DAC susceptible to introducing inter-symbol interference (ISI) in small PWM edge separation presence causing audio THDN degradation. A multi-bit quantizer switches from a first to second mode when the input signal rises above a threshold. The quantizer quantizes the input signal into a quantized output signal, each sample of which has a code selected from respective first and second quantization code sets. The second set, relative to the first set, causes the digital PWM signal to have increased edge separation to reduce the ISI at high input levels. The first set includes small magnitude codes relative to the second set to reduce quantization noise at low input levels. The threshold is sufficiently low to cause the quantized output signal to be dominated by small codes when operating in the first mode.

A method for managing data includes obtaining a compression algorithm selection request for a data object, wherein the data object is generated by a production host, identifying, in response to the compression algorithm selection request, a set of production host performance objectives of the production host, performing a compression algorithm selection analysis using the set of production host performance objectives and a compression selection model to obtain a compression algorithm selection for a compression algorithm, specifying the compression algorithm to the production host using a data agent, wherein the data agent is operatively connected to the production host, initiating a compression on the data object using the data agent by applying the compression algorithm to obtain a compressed data object, and initiating a storage of the compressed data object.

A method for managing data includes obtaining a compression algorithm selection request for a data object, wherein the data object is generated by a production host, identifying, in response to the compression algorithm selection request, a set of production host performance objectives of the production host, performing a compression algorithm selection analysis using the set of production host performance objectives and a compression selection model to obtain a compression algorithm selection for a compression algorithm, specifying the compression algorithm to the production host using a data agent, wherein the data agent is operatively connected to the production host, initiating a compression on the data object using the data agent by applying the compression algorithm to obtain a compressed data object, and initiating a storage of the compressed data object.

A digital PWM modulator modulates a digital input signal to drive a PWM signal to a PWM DAC susceptible to introducing inter-symbol interference (ISI) in small PWM edge separation presence causing audio THDN degradation. A multi-bit quantizer switches from a first to second mode when the input signal rises above a threshold. The quantizer quantizes the input signal into a quantized output signal, each sample of which has a code selected from respective first and second quantization code sets. The second set, relative to the first set, causes the digital PWM signal to have increased edge separation to reduce the ISI at high input levels. The first set includes small magnitude codes relative to the second set to reduce quantization noise at low input levels. The threshold is sufficiently low to cause the quantized output signal to be dominated by small codes when operating in the first mode.

The present application discloses a forward and backward smooth decoding method and device suitable for an OvXDM system, and a system. Importance weights of particles in a particle set corresponding to a symbol are calculated by using a forward process and a backward process, and screening is performed with reference to forward importance weights of particles and backward importance weights of particles, to output a final decoding sequence.

The present application discloses a forward and backward smooth decoding method and device suitable for an OvXDM system, and a system. Importance weights of particles in a particle set corresponding to a symbol are calculated by using a forward process and a backward process, and screening is performed with reference to forward importance weights of particles and backward importance weights of particles, to output a final decoding sequence.

A digital-to-analog converter performs a computation process to start the computation based upon the second clock signal with respect to the digital data of music sound if the computation is not under execution when the control signal is outputted by the signal output process, a control process to inhibit the computation based upon the second clock signal from being started with respect to the digital data of music sound until the computation is not under execution when the computation is under execution, and an output process to convert a computation result of the computation process into an analog signal and output the analog signal.

A digital-to-analog converter performs a computation process to start the computation based upon the second clock signal with respect to the digital data of music sound if the computation is not under execution when the control signal is outputted by the signal output process, a control process to inhibit the computation based upon the second clock signal from being started with respect to the digital data of music sound until the computation is not under execution when the computation is under execution, and an output process to convert a computation result of the computation process into an analog signal and output the analog signal.

In some embodiments, a microphone system includes a multi-bit delta-sigma modulator configured to be coupled to a microphone and configured to covert an output of the microphone into a first digital signal with a multi-bit resolution at a first output of the multi-bit delta-sigma modulator. The microphone system also includes a digital noise shaper coupled to the first output of the multi-bit delta-sigma modulator, and configured to convert a multi-bit digital input of the digital noise shaper into a one-bit digital signal.

In some embodiments, a microphone system includes a multi-bit delta-sigma modulator configured to be coupled to a microphone and configured to covert an output of the microphone into a first digital signal with a multi-bit resolution at a first output of the multi-bit delta-sigma modulator. The microphone system also includes a digital noise shaper coupled to the first output of the multi-bit delta-sigma modulator, and configured to convert a multi-bit digital input of the digital noise shaper into a one-bit digital signal.