Infrared signal transmitting apparatus

Details Infrared signal transmitting apparatus Infrared signal transmitting apparatus

1997-02-25

1999-01-19

Negash, Knife-Michael

Optical: systems and elements

Deflection using a moving element

Using a periodically moving element

359143, 359172, 359180, H04B 1000

Patent

active

058619690

ABSTRACT:
An infrared signal transmitting apparatus provided by the present invention comprises an infrared light emitting device for transmitting high-speed signals, a plurality of infrared light emitting devices for transmitting low-speed signals which are distributed and laid out in such a way that, as a whole, a wide directivity is obtained, a high-speed-signal driving circuit for driving the infrared light emitting device for transmitting high-speed signals in accordance with a high-speed signal (data signal) received from a computer, a low-speed-signal driving circuit for driving the plural infrared light emitting devices for transmitting low-speed signals at the same time in accordance with a low-speed signal (remote-control signal) received from the computer, and logic means for allowing the high-speed-signal driving circuit to drive the infrared light emitting device for transmitting high-speed signals in accordance with the low-speed signal. When a remote-control signal is received from the computer, not only do the infrared light emitting devices for transmitting low-speed signals each transmit an infrared signal, but the infrared light emitting device for transmitting high-speed signals also outputs an infrared signal as well.

REFERENCES:
patent: 4249266 (1981-02-01), Nakamori
patent: 5247380 (1993-09-01), Lee et al.
patent: 5600471 (1997-02-01), Hirohashi et al.

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