Collective house interphone system and method therefore

Telephonic communications – Private or single line system – Doorbell system

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

37910206, 379170, 348 14, H04M 160, H04M 900, H04M 1100, H04M 710

Patent

active

057546371

ABSTRACT:
A collective house controller for relaying a call and guarding the houses is provided, in a collective house including a plurality of blocks separated from each other, each block including a plurality of households. The collective house controller includes a household interphone, i.e., intercom, for requesting/responding to a call while being connected with a first coaxial line and for performing a call by receiving a predetermined communication channel allocated thereto, a public entrance interphone for opening/closing a public entrance and transmitting an image signal, a gate guard post interphone for controlling opening/closing of the public entrance by checking a visitor in front of the corresponding public entrance, a block controller for relaying a call within a block by allocating a communication channel after receiving a predetermined communication channel allocated thereto while being connected with first and second coaxial lines, and a central controller for relaying a call between blocks by allocating a communication channel to the block controller while being connected with the second coaxial line. Thus, wiring and the maintenance thereof can be easily performed, simultaneous conference call can be provided and information can be transmitted and received.

REFERENCES:
patent: 3376506 (1968-04-01), Sontag
patent: 3484561 (1969-12-01), Matthews
patent: 3532820 (1970-10-01), Holm
patent: 3665116 (1972-05-01), Holstrom
patent: 3709629 (1973-01-01), First
patent: 3767859 (1973-10-01), Doering et al.
patent: 3806662 (1974-04-01), Forrest
patent: 4224476 (1980-09-01), Tuhy, Jr.
patent: 4524384 (1985-06-01), Lefkowitz et al.
patent: 4538031 (1985-08-01), Benning et al.
patent: 4544111 (1985-10-01), Armstrong
patent: 4715060 (1987-12-01), Lipscher et al.
patent: 4829560 (1989-05-01), Evanyk et al.
patent: 4843461 (1989-06-01), Tatsumi et al.
patent: 4943997 (1990-07-01), Chang
patent: 5086385 (1992-02-01), Launey et al.
patent: 5086485 (1992-02-01), Bowen
patent: 5287398 (1994-02-01), Briault
patent: 5315644 (1994-05-01), Lester et al.
patent: 5390240 (1995-02-01), Sensney
patent: 5428388 (1995-06-01), Von Bauer et al.
patent: 5592540 (1997-01-01), Beveridge
patent: 5598456 (1997-01-01), Feinberg
patent: 5610975 (1997-03-01), Tsuchida
patent: 5612994 (1997-03-01), Chen
patent: 5636263 (1997-06-01), Thomson
patent: 5657380 (1997-08-01), Mozer

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Collective house interphone system and method therefore does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Collective house interphone system and method therefore, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Collective house interphone system and method therefore will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-1861308

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.