IR FM modem with flash modulation

Details IR FM modem with flash modulation IR FM modem with flash modulation

1994-10-14

1997-03-11

Chin, Wellington

Pulse or digital communications

Systems using alternating or pulsating current

Angle modulation

375237, 375239, 375276, 359172, 359182, H04L 2710, H04B 1000

Patent

active

056109474

ABSTRACT:
Biphase or FM encoding is combined with Flash modulation in infrared (IR) communication. By shrinking the coded pulse width in the modulation process, power dissipation is effectively reduced to the point where FM encoding can be advantageously adapted to IR communication in a synchronous communication system. Noise filtering is also described.

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patent: 5309113 (1994-05-01), Mimura
patent: 5351249 (1994-09-01), Lomp
patent: 5436590 (1995-07-01), Simard

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