Optical: systems and elements – Deflection using a moving element – Using a periodically moving element
Patent
1997-04-16
2000-11-28
Chan, Jason
Optical: systems and elements
Deflection using a moving element
Using a periodically moving element
359154, H04B 1000
Patent
active
061542989
ABSTRACT:
An optical communication device includes an IrDA modulation circuit and an ASK modulation circuit, one of which modulates transmission data. Modulated data is applied to a driver which drives a light emission diode (LED) in accordance with the modulated data. On the other hand, reception data received by a photo-diode is amplified by an amplifier, and reception data outputted from the amplifier is demodulated by an IrDA demodulation circuit or an ASK demodulation circuit. The IrDA modulation circuit, the ASK modulation circuit, the IrDA demodulation circuit and the ASK demodulation circuit are formed by an MOS process, and the driver and the amplifier are formed by a bipolar process. The MOS process and the bipolar process are executed on the same substrate, whereby such circuits are incorporated into a single IC. The IC, the LED and the photo-diode are molded by a resin.
REFERENCES:
patent: 3611167 (1971-10-01), Calfee
patent: 4626878 (1986-12-01), Kuwano et al.
patent: 5040242 (1991-08-01), Tsuchiya et al.
patent: 5047835 (1991-09-01), Chang
patent: 5122893 (1992-06-01), Tolbert
patent: 5337391 (1994-08-01), Lebby
patent: 5422931 (1995-06-01), Austin-Lazarus et al.
patent: 5432630 (1995-07-01), Lebby et al.
Chan Jason
Rohm & Co., Ltd.
Singh Dalzid
LandOfFree
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