Patent
Digital-to-analog converter system
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TLDR
In this article, a D/A converter system for converting digital signal to analog signal includes a circuit for converting PCM signal to pulse density modulation signal, and an analog low-pass filter for converting the PDS modulation signal to an analog signal by removing noise from the pulse DQ modulation signal.Abstract:
A D/A converter system for converting digital signal to analog signal includes a circuit for converting digital signal such as PCM signal to pulse density modulation signal, and an analog low-pass filter for converting the pulse density modulation signal to analog signal by removing noise from the pulse density modulation signal.read more
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Patent
Method and apparatus for improving S/N ratio in digital-to-analog conversion of pulse density modulated (PDM) signal
TL;DR: In this paper, a method and apparatus for improving an S/N ratio in a digital-to-analog conversion of a PDM signal are provided, where a signal component extractor and a matching unit are used.
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References
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PatentDOI
Digital to analog converter
TL;DR: In this article, a digital-to-analog converter (DAC) is proposed for converting a digital signal (DS) into an analog signal (UOUT) having a maximum voltage range which corresponds to a second supply voltage (UH).
Patent
Fiber optic system for transmission of video signals by pulse-frequency-modulation
TL;DR: In this paper, the amplitude of a video signal modulates the repetition frequency of a stream of narrow light pulses emitted by a laser diode, and the pulses are transmitted through a low loss, wideband optical fiber to an avalanche photodiode biased at an optimum gain point.