Methods and devices for monitoring optical signals
First Claim
Patent Images
1. A method of monitoring a signal source, the method comprising:
- receiving an analog signal from the signal source;
converting the analog signal into a digital signal having a frequency that is representative of an amplitude of the analog signal;
adaptively controlling an edge speed of the digital signal based on the analog signal; and
monitoring at least one parameter of the analog signal by counting features of the digital signal or time-measuring a distance between the features of the digital signal.
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Abstract
A method, system, and computer readable medium are provided for monitoring a signal source. The illustrative method includes receiving an analog signal from the signal source, converting the analog signal into a digital signal having a frequency that is representative of an amplitude of the analog signal, and monitoring at least one parameter of the analog signal by counting features of the digital signal or time-measuring a distance between the features of the digital signal.
5 Citations
20 Claims
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1. A method of monitoring a signal source, the method comprising:
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receiving an analog signal from the signal source; converting the analog signal into a digital signal having a frequency that is representative of an amplitude of the analog signal; adaptively controlling an edge speed of the digital signal based on the analog signal; and monitoring at least one parameter of the analog signal by counting features of the digital signal or time-measuring a distance between the features of the digital signal. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 19, 20)
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9. A system for monitoring a signal source, the system comprising:
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a receiver comprising; a current controlled oscillator that converts an input analog signal into a digital signal having a frequency that represents a parameter of the analog signal; and a slew-rate controller that adaptively controls an edge speed of the digital signal based on the analog signal; and a digital signal processor that receives the digital signal and monitors the parameter of the analog signal by counting features of the digital signal or time-measuring a distance between features of the digital signal. - View Dependent Claims (10, 11, 12, 13, 14)
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15. A non-transitory computer readable medium comprising instructions, which when executed by a processor, cause the processor to:
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generate a parameter selection signal, the parameter selection signal enabling different parameters from among a plurality of candidate parameters of an analog signal to be selected as a selected parameter; receive a digital signal having a frequency that represents the selected parameter of the analog signal, the digital signal having an edge speed that has been adaptively controlled based on the analog signal; and monitor the selected parameter of the analog signal by counting features of the digital signal or time-measuring a distance between the features of the digital signal. - View Dependent Claims (16, 17, 18)
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Specification