Wireless data communication apparatus using the diffused infrared-ray antenna
First Claim
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1. A wireless data communication apparatus, comprising:
- a plurality of terminals each having an optical communication module for transmitting and receiving infrared-ray signals, wherein the optical communication module includes an infrared-ray antenna having a parabolic shape and having a hyperbolic optical reflector; and
a repeater which receives the infrared-ray signals transmitted from one of said plurality of terminals and transmits the infrared-ray signals to another of said plurality of terminals, wherein said repeater includes a plurality of parabolic shaped infrared-ray antennas.
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Abstract
A wireless data communication apparatus using the diffused infrared-ray antennas comprising: a plurality of terminals having their own optical communication modules for transmitting and receiving infrared-ray signals, wherein the optical communication module includes a parabolic shaped infrared-ray antenna; and a repeater which receives the infrared-ray signals transmitted from the plurality of terminals and transmits the infrared-ray signals to the plurality of terminals, wherein the repeater includes a parabolic shaped infrared-ray antenna.
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Citations
16 Claims
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1. A wireless data communication apparatus, comprising:
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a plurality of terminals each having an optical communication module for transmitting and receiving infrared-ray signals, wherein the optical communication module includes an infrared-ray antenna having a parabolic shape and having a hyperbolic optical reflector; and a repeater which receives the infrared-ray signals transmitted from one of said plurality of terminals and transmits the infrared-ray signals to another of said plurality of terminals, wherein said repeater includes a plurality of parabolic shaped infrared-ray antennas. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A method for wireless data communication between a plurality of terminals each having an optical communication module for transmitting and receiving infrared-ray signals, said method comprising the steps of:
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converting communication data intended for a target terminal into a modulated electric signal; converting said modulated electric signal into an optical infrared-ray signal; transmitting said optical infrared-ray signal via an infrared emitting diode mounted on a parabolic shaped infrared-ray antenna; receiving said optical infrared-ray signal by utilizing a selected one of a plurality of pin photo diodes mounted on a second parabolic shaped infrared-ray antenna and outputting a received electrical signal from said pin photo diode; demodulating said received electrical signal to output received communication data; analyzing said received communication data to obtain information regarding said target terminal; converting said information into transmission communication data; converting said transmission communication data into a second modulated electric signal; converting said second modulated electrical signal into a second optical infrared-ray signal; and transmitting said second optical infrared-ray signal to said target terminal via a selected one of a plurality of infrared emitting diodes mounted on a parabolic shaped infrared-ray antenna.
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11. A wireless data communication apparatus, composing:
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terminal means having an optical communication module for transmitting and receiving infrared-ray signals, wherein the optical communication module includes a parabolic shaped infrared-ray antenna having a hyperbolic optical reflector; and repeater means for relaying received infrared-ray signals transmitted from said terminal means to a target terminal, wherein said repeater means includes a plurality of parabolic shaped infrared-ray antennas. - View Dependent Claims (12, 13, 14, 15, 16)
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Specification