Method and apparatus for connecting a television interphone...

Details Method and apparatus for connecting a television interphone... Method and apparatus for connecting a television interphone...

2005-09-06

2005-09-06

Chan, Wing (Department: 2643)

Telephonic communications

Telephone line or system combined with diverse electrical...

Remote indication over telephone line

C379S090010, C348S014010, C348S143000

Reexamination Certificate

active

06940957

ABSTRACT:
A method and apparatus for connecting a television interphone monitor system including at least one television interphone monitor connected via internal communication lines and a matrix selector with at least one entrance panel, and with at least one interface unit to an E concierge station via a communication network selected from the group consisting of dedicated network, public network and the Internet.

REFERENCES:
patent: 5754637 (1998-05-01), Choi
patent: 5923363 (1999-07-01), Elberbaum
patent: 6072861 (2000-06-01), Yu
patent: 6603842 (2003-08-01), Elberbaum

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