Messaging communication protocol
December 22, 2018. 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 3553374 Fast start-up adaptive equalizer communication system using two data transmission rates Pocket sized telephone line data communication systems Half-duplex modem without turnaround delay Packet switch network protocol Synchronous packet voice/data communication system Data representation protocol for communications between different networks Communication protocol for a high data rate satellite communication system Device and method for limiting delay by substantial elimination of duplicate synchronous data frames in a communication system Dynamic selection of compression rate for a voice compression algorithm in a voice over data modem InventorsAssigneeApplicationNo. 219109 filed on 12/22/1998US Classes:714/751, Including forward error correction capability714/748, Request for retransmission714/797Majority decision/voter circuitExaminersPrimary: Moise, Emmanuel L.Attorney, Agent or FirmInternational ClassesH03M 013/00H04L 001/18 AbstractThe present invention uses an acoustic modem embedded in a remote device enhanced with automatic repeat request and forward error correction routines to provide reliable transfer of electronic messages from the messaging server to the remote device. This may provide significantly better error correction than standard PC modems. Also the present invention, may provide a fast, reliable connection sequence by use of a preamble frame. According to an embodiment of the present invention, a method of communicating messages between a messaging server and a remote device is provided. The method includes a variety of steps such as establishing a connection between the messaging server and the remote communication device by transmitting a preamble frame, exchanging data frames between the remote device and the messaging server, detecting and correcting errors in received frames, and re-transmitting received frames, if errors are uncorrectable.Other References
Field of SearchRequest for retransmissionRetransmission if no ACK returned Feedback to transmitter for comparison Including forward error correction capability Majority decision/voter circuit Signaling for performing battery saving Using time division multiplexing Multiple access (e.g., FDMA) Having both time and frequency assignment Hand-off control Multiple access (e.g., TDMA) Polling Multiple access (e.g., TDMA) Using messages having an address field as header Synchronization Assignment of variable bandwidth or time period for transmission or reception Transmission bandwidth conservation Transmission time into time slots adjusted based upon propagation delay time Length coding By motor driven dial rotating device Including coupler (e.g., inductive) Acoustic | |
