Telephonic communications – Private or single line system
Reexamination Certificate
2004-07-09
2008-07-15
Tieu, Binh K. (Department: 2614)
Telephonic communications
Private or single line system
C379S167020, C379S167050, C379S167070, C379S167120
Reexamination Certificate
active
07400716
ABSTRACT:
A multifunctional intercom system having message recording/retrieval functions, a remote control unit, and music playing capabilities, wherein the various buttons are labeled in Braille for use by hearing impaired individuals. The intercom system comprises a main control panel, a front door intercom/message unit, a plurality of room intercom units, and a remote control unit, each capable of transmitting and receiving sound from one another. The main control panel has a CD player and a clock radio, and is capable of selectively broadcasting music to the front door intercom/message unit and to the plurality of room intercom units. Messages left at the front door intercom/message unit may be retrieved at the main control panel, or by calling the intercom system from an outside phone line. In use, the user programs a private security code into the intercom system. Unauthorized individuals without knowledge of the private security code are unable to access the messages left upon the message recorder.
REFERENCES:
patent: 6721408 (2004-04-01), Bain et al.
patent: 7079014 (2006-07-01), Steinetz et al.
patent: 2003/0206101 (2003-11-01), Dixon et al.
patent: 2006/0038663 (2006-02-01), Steinetz et al.
Goldstein Law Offices PC
Tieu Binh K.
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