G - Physics – 06 – F
Patent
G - Physics
06
F
354/235
G06F 13/14 (2006.01) H04L 13/08 (2006.01) H04M 11/06 (2006.01)
Patent
CA 1191267
Abstract of the Disclosure This invention relates to a microprocessor operated telecommunications interface for connection to a telecommunications line to provide transmission of data between a terminal of an automatic teletypewriter switch- ing service of the type operating in one code and a database of the type operating in another code. The interface comprises a microprocessing unit (MPU) for centrally controlling the functioning of the interface; memory for operating said MPU; a random access memory accessible by said MPU for storing message information, dialing information and user identification information; a telecommunications modem for converting digital infor- mation to information for telecommunications transmis- sion, said telecommunications modem being connected to said telecommunications line. The invention also includes means for formating and controlling serial asynchronous data communication information transmitted between said user terminal and said MPU; at least two user-actuatable means for selecting a function of said interface, one said function selecting means accessing said MPU to said user terminal to provide for entry and editing of message information in said random access memory by said user terminal; a second said function selecting means actuating said telecommunications modem to dial said database using said dialing information stored in said random access memory, said MPU - 2 - transmitting user identification stored in said random access memory to said database, said MPU upon request by said database transmitting message information to said database. The telecommunications modem is responsive to incoming telecommunications originated by said database, said MPU transmitting user identification information stored in said random access memory to said database, said MPU accessing said database to said random access memory to enable said database to reprogram at least a portion of said random access memory.
433644
Bereskin & Parr
Buck Robert J.
LandOfFree
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