Data communication system
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United States of America Patent
Stats
-
May 7, 1985
Grant Date -
N/A
app pub date -
Jun 21, 1982
filing date -
Jun 26, 1981
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A data communication system including reflectors having first light emitting elements for radiating light and first light receiving elements for receiving light, a plurality of transceivers disposed confronting said reflectors and having second light emitting elements for radiating light and second light receiving elements for receiving light, and a data processing unit to be connected to the transceivers, wherein light corresponding to the data to be transmitted from the data processing unit is converged and radiated from the second light emitting element of the transceiver to the reflector, the light from the transceiver is received by the first light receiving element of the reflector, light corresponding to the data thus received is radiated from the light emitting element of the reflector to all of the transceivers confronting said reflector and is received by the second light receiving elements of the transceivers, and the data thus received is sent to the data processing unit.

First Claim
Family

- 15 United States
- 10 France
- 8 Japan
- 7 China
- 5 Korea
- 2 Other
Patent Owner(s)
Patent Owner | Address | |
---|---|---|
HITACHI LTD | CHIYODA-KU TOKYO 100-8280 | |
YAGI ANTENNA CO LTD | 6-10 UCHIKANDA 1-CHOME CHIYODA-KU TOKYO |
International Classification(s)
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
---|---|---|---|
Morito, Motoyoshi | Iruma, JP | 4 | 106 |
Nakata, Yukio | Kawasaki, JP | 15 | 415 |
Shiotsu, Osamu | Ohmiya, JP | 5 | 67 |
Suda, Kaoru | Ohmiya, JP | 9 | 71 |
Terada, Matsuaki | Machida, JP | 13 | 1130 |
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Maintenance Fees
Fee | Large entity fee | small entity fee | micro entity fee | due date |
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Fee | Large entity fee | small entity fee | micro entity fee |
---|---|---|---|
Surcharge after expiration - Late payment is unavoidable | $700.00 | $350.00 | $175.00 |
Surcharge after expiration - Late payment is unintentional | $1,640.00 | $820.00 | $410.00 |
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