Phantom circuits

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CPC
H04Q2213/082

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Parent Industries

HELECTRICITY H04Electric communication H04QSELECTING H04Q2213/00Indexing scheme relating to selecting arrangements in general and for multiplex systems

Current Industry

H04Q2213/082Phantom circuits

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Patents Grantslast 30 patents

Information Patent Grant
DC supply for an S-bus in ISDN
- Patent number 4,935,928
- Issue date Jun 19, 1990
- AT&T Bell Laboratories
- Jan De Weerd
- H04 - ELECTRIC COMMUNICATION TECHNIQUE