Radiant energy – Ionic separation or analysis – Static field-type ion path-bending selecting means
Patent
1976-03-15
1977-02-15
Britton, Howard W.
Radiant energy
Ionic separation or analysis
Static field-type ion path-bending selecting means
250205, H04B 900, G01J 132, G05D 2502
Patent
active
040083900
ABSTRACT:
An optical ternary pulse transmission system is disclosed in which a light emitting diode is caused to generate either one of two light intensity outputs in response to the voltage pulses presented at either one of two input terminals. The voltage pulse at each input terminal is coupled to the light emitting diode through a gain control network. Most of the light from the light emitting diode is coupled to an optical fiber, and a first photodetector is positioned close to the light emitting diode in order to capture stray light not coupled into the optical fiber. A second photodetector with an opaque coating is positioned such that its position and the position of the first photodetector are electrically symmetrical with respect to the light emitting diode. The electrical signal from the second photodetector representing parasitic coupling is subtracted from the signal developed by the first photodetector in order to develop a signal dependent only on light intensity variations. First and second comparator circuits are selectively gated by the input voltage pulses to utilize selected pulses of the light dependent signal in developing feedback voltages for the gain control networks.
REFERENCES:
patent: 3590249 (1971-06-01), Rabedeau
patent: 3714437 (1973-01-01), Kinsel
patent: 3770966 (1973-11-01), Sagawa
patent: 3931512 (1976-01-01), Kent
Bell Telephone Laboratories Incorporated
Britton Howard W.
Dubosky Daniel D.
LandOfFree
Optical pulse transmission system does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Optical pulse transmission system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Optical pulse transmission system will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1438520