Communications: electrical – Condition responsive indicating system – With particular coupling link
Reexamination Certificate
2005-09-02
2008-08-26
Crosland, Donnie L (Department: 2612)
Communications: electrical
Condition responsive indicating system
With particular coupling link
C340S538000, C340S538150, C340S539250, C340S286110, C340S326000, C340S330000, C348S014050, C348S014040
Reexamination Certificate
active
07417535
ABSTRACT:
An apparatus for converting a low voltage alternating current (AC) wiring circuit to a high speed data communications link, comprising a primary coupling circuit and a secondary coupling circuit. The apparatus provides low voltage AC power to a data device and couples data signals between the data device and the AC power line via the converted low voltage AC wiring circuit. An example is provided for retrofitting a door chime system to a high speed data link such as a video camera system.
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Griffin Alfred C.
Mathews David K.
Crosland Donnie L
Mosher Stephen S.
RadioShack Corporation
Whitaker, Chalk, Swindle & Sawyer LLP
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