Patent ID: 6084952
Filing Date: 2000-07-04
Classification: H03M,H04L,H04N

Abstract:
In a communication system including a messaging server and a portable hand held remote device coupled to a telephone network, a method of communication between the remote device and the messaging server, the method comprising:providing a message database accessible to the messaging server for storing electronic messages;establishing an acoustical coupling between the remote device and the telephone network without requiring a wired connection between the remote device and the telephone network;generating an initial set of acoustical tones at the remote device corresponding to setup information to be transmitted to the messaging server;transmitting the initial set of acoustical tones to the messaging server via the acoustical coupling and over the telephone network;receiving the initial set of acoustical tones and converting them to setup information at the messaging server;establishing a session between the remote device and the messaging server based on the setup information;generating a first set of acoustical tones at the remote device remote corresponding to a first set of information to be communicated from the remote device to the messaging server;transmitting the first set of acoustical tones from the remote device to the messaging server via the acoustic coupling and over the telephone network;converting the first set of acoustical tones to the first set of information at the messaging server;performing processing at the messaging server based on the first set of information, the processing including performing forward error correction on the first set of information;assembling, at the messaging server, a second set of information to be communicated to the remote device based on the first set of information and the setup information;generating a second set of acoustical tones at the messaging server corresponding to the second set of information;transmitting the second set of acoustical tones from the messaging server to the remote device over the telephone network; andthe remote device receiving the second set of acoustical tones via the acoustical coupling and converting the second set of acoustical tones to the second set of information.