Electric apparatus having visual indicator means

Details Electric apparatus having visual indicator means Electric apparatus having visual indicator means

2005-02-01

2005-02-01

Cumming, William (Department: 2683)

Telecommunications

Transmitter and receiver at same station

Radiotelephone equipment detail

Reexamination Certificate

active

06850776

ABSTRACT:
An electric device includes a housing having an indicator window and a visual indicator adapted to emit a visible light signal through the indicator window for indicating a status of the device. The device also has at least one of the following components, which are operative within a first spectral range of light substantially covering red or infrared light: an IR transmitter for transmitting infrared light, an IR receiver for receiving infrared light, an electronic component sensitive to infrared light, or an optical detector susceptible of infrared or red light. The visible light signal is provided within a second spectral range, which substantially covers blue light and is outside the first spectral range.

REFERENCES:
patent: 4975694 (1990-12-01), McLaughlin et al.
patent: 5446783 (1995-08-01), May
patent: 5880732 (1999-03-01), Tryding
patent: 9856152 (1998-12-01), None
patent: WO 0017840 (2000-03-01), None
patent: WO 0105124 (2001-01-01), None
patent: WO 0105125 (2001-01-01), None

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