摘要:
A sequence mapping circuit and method for digital audio circuits generates a pulsed output. Over time, the mapping circuit generates pulses with a substantially identical average centroid for each of the possible output waveforms. For at least some of the output waveforms, two or more sets of pulses are provided representing the same waveform but having different centroids. The output is alternated among the available sets of pulses to maintain the desired average centroid over time. Shuffling of the output among the available pulses representing a given waveform may be randomly determined, or the pulses used may be tracked and the output pulses sequentially alternated among the available output pulses. The shuffled mapping method reduces output harmonics compared to conventional static mappers.
摘要:
The present invention is directed to a sigma-delta digital to analog converted (DAC) including a digital-sigma delta modulator, a decimation filter, and a multi-bit DAC. The digital sigma-delta modulator receives a digital input signal and produces a quantized digital signal therefrom. The decimation filter receives the quantized digital signal and produces a decimated digital signal therefrom. The multi-bit DAC receives the decimated digital signal and produces an analog output signal therefrom. The analog output signal is representative of the digital input signal.
摘要:
A system and method for remotely connecting client computers to a communication network such as the Internet by way of a server system and dynamically providing network connections to the client computers, including changing static communications settings to dynamic settings.
摘要:
A system and method for remotely connecting client computers to a communication network such as the Internet by way of a server system handling a plurality of client computers and having the capability of dynamically providing network connections to the client computers, separately billing usage time and tracking usage and preferably updating access software on the client computers.