Optical communications – Transmitter and receiver system – Retroreflection
Reexamination Certificate
2005-07-11
2009-12-01
Pascal, Leslie (Department: 2613)
Optical communications
Transmitter and receiver system
Retroreflection
Reexamination Certificate
active
07627255
ABSTRACT:
In order to provide a satellite information autonomous distribution satellite capable of collecting attribute information for satellites after failure or damage occurs at or to the satellite, an information collection device is operated by a second power supply provided independently from the first power supply operating the satellite bus system, is provided separately from the satellite bus system, and collects and stores attribute information. The light receiver is provided separately from the satellite bus system and forms a prescribed control signal when light sent from the information collection station is received. The reflecting type light modulating device is operated by the second power supply, is provided separately from the satellite bus system, and transmits reflected light superimposed with a modulation signal containing attribute information in the reflected waves using this modulation signal when a modulation signal is formed based on attribute information stored in the information collection device according to the shape of the control signal.
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Charles M. Swenson et al., “Low Power FLC-based Retromodulator Communications System”, Proc. SPIE, vol. 2990, pp. 296-310, 1997.
G. C. Gilbreath et al., “large-aperture multiple quantum well modulating retroflector for free-space optical data transfer on unmanned aerial vehicles”, Optical Engineering, vol. 40, No. 7, pp. 1348-1356, Jul. 2001.
Arimoto Yoshinori
Toyoshima Morio
National Institute of Information and Communications Technology
Pascal Leslie
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