Optical analog data link with simple self-test feature
Abstract
A communications circuit for optically transmitting analog data signals free of excessive ripple, while having rapid response time. The invention is further characterized by being adapted to provide an immediate indication of the failure of the optical transmission link of the circuit. Commercially available voltage to frequency converter chips are used in conjunction with suitable wiring arrays and in combination with readily available indicator means for constructing the communication circuit of the invention. A V/F converter in the communications circuit is coupled to an offset adjustment means to cause the converter to continuously produce a string of output voltage pulses having a frequency of about 1 Khz responsive to the input analog signal to the converter being zero. The continuous presence of the 1 Khz frequency on the optical transmission link is monitored at the receiving end of the communication circuit and the indicator means is connected to immediately provide an easily detected indication of a failure of the optical transmission link to transmit the 1 Khz frequency pulses.
- Inventors:
-
- Commack, NY
- Issue Date:
- Research Org.:
- Associated Universities, Inc., Upton, NY (United States)
- OSTI Identifier:
- 866097
- Patent Number(s):
- 4633523
- Assignee:
- United States of America as represented by United States (Washington, DC)
- Patent Classifications (CPCs):
-
H - ELECTRICITY H04 - ELECTRIC COMMUNICATION TECHNIQUE H04B - TRANSMISSION
- DOE Contract Number:
- AC02-76CH00016
- Resource Type:
- Patent
- Country of Publication:
- United States
- Language:
- English
- Subject:
- optical; analog; data; link; simple; self-test; feature; communications; circuit; optically; transmitting; signals; free; excessive; ripple; rapid; response; time; characterized; adapted; provide; immediate; indication; failure; transmission; commercially; available; voltage; frequency; converter; chips; conjunction; suitable; wiring; arrays; combination; readily; indicator; means; constructing; communication; coupled; offset; adjustment; continuously; produce; string; output; pulses; khz; responsive; input; signal; zero; continuous; presence; monitored; receiving; connected; immediately; easily; detected; transmit; optical analog; adjustment means; transmission link; optical transmission; output voltage; voltage pulse; voltage pulses; response time; analog signal; commercially available; readily available; data signals; data signal; analog data; rapid response; frequency pulses; optically transmitting; frequency converter; continuously produce; easily detected; frequency pulse; /359/375/
Citation Formats
Witkover, Richard L. Optical analog data link with simple self-test feature. United States: N. p., 1986.
Web.
Witkover, Richard L. Optical analog data link with simple self-test feature. United States.
Witkover, Richard L. Wed .
"Optical analog data link with simple self-test feature". United States. https://www.osti.gov/servlets/purl/866097.
@article{osti_866097,
title = {Optical analog data link with simple self-test feature},
author = {Witkover, Richard L},
abstractNote = {A communications circuit for optically transmitting analog data signals free of excessive ripple, while having rapid response time. The invention is further characterized by being adapted to provide an immediate indication of the failure of the optical transmission link of the circuit. Commercially available voltage to frequency converter chips are used in conjunction with suitable wiring arrays and in combination with readily available indicator means for constructing the communication circuit of the invention. A V/F converter in the communications circuit is coupled to an offset adjustment means to cause the converter to continuously produce a string of output voltage pulses having a frequency of about 1 Khz responsive to the input analog signal to the converter being zero. The continuous presence of the 1 Khz frequency on the optical transmission link is monitored at the receiving end of the communication circuit and the indicator means is connected to immediately provide an easily detected indication of a failure of the optical transmission link to transmit the 1 Khz frequency pulses.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Wed Jan 01 00:00:00 EST 1986},
month = {Wed Jan 01 00:00:00 EST 1986}
}