Parallel process communications terminal and network
Patent 4902881 Issued on February 20, 1990. Estimated Expiration Date: 
June 10, 2008. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
June 10, 2008. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent References Re32115 3752904 3896266 Self-service passenger ticketing system Credit card actuated telecommunication access network Patent #: 4439636 InventorAssigneeApplicationNo. 205237 filed on 06/10/1988US Classes:235/381, With vending235/375, SYSTEMS CONTROLLED BY DATA BEARING RECORDS235/379, Banking systems235/380Credit or identification card systemsExaminersPrimary: Pitts, Harold I.Attorney, Agent or FirmInternational ClassG06F 007/08AbstractA communications terminal and network of such terminals offering simultaneous real time or delayed document and voice services through a host processor with overall control, including accounting functions based upon credit card billing. Document services include facsimile, copying, electronic mail and document storage. Voice services include voice mail, and telephone. Real time document handling is achieved using a high speed coprocessor to implement a data compression-decompression algorithm. A pair of common communications channels, such as public telephone subscriber network lines, allow connection of the terminal to a hub. A plurality of interconnected hubs allow wide area availability of document and voice communication services. | |
