Optical communications – Multiplex – Broadcast and distribution system
Reexamination Certificate
2006-06-13
2006-06-13
Chan, Jason (Department: 2633)
Optical communications
Multiplex
Broadcast and distribution system
C398S066000
Reexamination Certificate
active
07062171
ABSTRACT:
An optical network unit is associated with a multi-wavelength optical fiber communications system carrying low-power digital signals bidirectionally transmitted at a first and a second wavelength and a high-power analog video signal transmitted at a third wavelength. The unit comprises a housing having a connection for the optical fiber; and an optical filter, first and second optical units, and a beam splitter mounted in the housing. The optical filter is interposed between the fiber termination and the second optical unit, and is adapted to block light of the third wavelength but bidirectionally transmit light of the first and second wavelengths. The system is readily implemented, and any combination of the data and video services may be selected. A high level of skill is not required for changing the combination of services procured.
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Chen Jian-Guang
Ota Yusuke
Buff Ernest D.
Chan Jason
Ernest D. Buff & Associates LLC
Fish Gordon E.
Lee David
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