Fiber optic communication signal link apparatus
AssigneeMichigan Scientific Corporation
InventorsHugh W. Larson, Paul J. Morand
Life of this patent
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Abstract
A fiber optic communication signal link apparatus for performing fiber optic link communication including a transmitter apparatus and a receiver apparatus coupled by a fiber optic cable. The transmitter is capable of detecting and modulating data that includes at least one of position, light and audio data. An analog voltage signal representing the data is transmitted to the transmitter apparatus wherein the signal is detected, converted to a frequency signal and modulated through the fiber optic cable to the receiver apparatus. Subsequently, the frequency signal is detected, demodulated and converted back to a voltage analog signal in the receiver apparatus.
Claims38
A fiber optic communication signal link apparatus for communication of data comprising:
- a transmitter apparatus including:
- an input filter for noise reduction of a received analog voltage input;
- differential amplifying means, coupled to the input filter, for amplifying the analog voltage input;
- voltage adjustment means, coupled to the differential amplifying means, for scaling a voltage of the analog voltage input;
- and
- a voltage to frequency converter, coupled to the voltage adjustment means, for converting the analog voltage input to a frequency output.
A fiber optic communication signal link apparatus for communication of data comprising:
- a receiver apparatus including:
- a frequency comparator;
- an integrator;
- a phase locked loop circuit, coupled to the frequency comparator;
- a frequency to voltage converter, coupled to the phase locked loop circuit, for converting the received frequency signal to a voltage output;
- a low pass filter, coupled to the frequency to voltage converter, for noise reduction of the voltage output;
- and
- voltage adjustment means, coupled to the low pass filter, for scaling the voltage of the output.
A fiber optic communication signal link apparatus for communication of data including at least one of displacement, light and audio data comprising:
- (a) a fiber optic transmission means for transmitting an analog voltage input signal, said transmission means comprising:
- an input filter for noise reduction of a received analog voltage input;
- gain selector means, coupled to the input filter, for amplifying the analog voltage input;
- voltage adjustment means, coupled to the gain selector means, for scaling a voltage of the analog voltage input;
- and
- a voltage to frequency converter, coupled to the voltage adjustment means, for converting the analog voltage input to a frequency output;
- and
- (b) a fiber optic receiver means for receiving a transmitted signal, said receiver means comprising:
- a phase locked loop circuit;
- a low pass filter, coupled to the phased locked loop circuit, for noise reduction of the voltage output;
- and
- voltage adjustment means, coupled to the low pass filter, for scaling the voltage of the output.
Dependencies are inferred from the claim text.