Four-wire connection or transmission

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CPC
H04Q2213/194

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

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H04Q2213/194Four-wire connection or transmission

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Patents Grantslast 30 patents

Information Patent Grant
ISDN terminal adapter for access from analog signal equipment of fo...
- Patent number 5,341,418
- Issue date Aug 23, 1994
- NEC Corporation
- Atsushi Yoshida
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Terminal adapter pooling system for ISDN
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- Kabushiki Kaisha Toshiba
- Hiroshi Mano
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Information Patent Grant
ISDN user-network interface system
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- Issue date May 3, 1994
- Kokusai Denshin Denwa Kabushiki Kaisha
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Patents Applicationslast 30 patents