JPS522201A
Expired / Lapsed
JP
⏱️ 0.0 years remaining
Changeover matrix for light communication
Assignee: NEC Corp
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Filing: 1975-06-24
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Granted: —
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Expires: 1995-06-24
Abstract
Abstract PURPOSE:To changeover input and output of light signals by means of a changeover matrix without photoelectric conversion in light communication system using optical fibres as transmission lines.
Inventors
- 👤 Masahiro Oota
Bibliographic Details
Application Number
—
Jurisdiction
JP
Data Source
google_patents
Last Synchronized
2026-11-03 16:11
CPC Classifications
H; H04; H04Q; H04Q3/00; H04Q3/42; H04Q3/52; H04Q3/526
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
JPS4934214A
Cited
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