Abstract: A method to dynamically connect an originating computer to a receiving computer on a dial-up network, such as the Internet. The originating computer calls the receiving computer over the Public Service Telephone Network (PSTN); the receiving computer detects the call but does not answer it so that no PSTN charges are incurred; then both the receiving computer and originating computer call up the dial-up network and one of the computers obtains the network address of the other computer to establish a communication link between them.

Abstract: To satisfactorily transmit two-way speech on digital computer networks, such as the Internet, it is necessary to reduce unpredictable delays due to variations in loading, routing and other factors. The present invention transmits extra packets of specially computed data along with the data representing speech. These extra packets are used at the receiving server to reconstruct any missing or late data packets. In one embodiment, any single packet of missing data in a stream of packets may be reconstructed. In additional embodiments, multiple packets of missing data may be reconstructed. This method is particularly suited to eliminating or reducing delays in networks in which data is sent down multiple diverse paths. Unlike prior art, it is not necessary to send full sets of redundant data down these diverse paths. The present invention significantly reduces latency with only a fraction of the added network bandwidth required with prior art methods that use full sets of redundant data.

Abstract: A multifunctional enclosure for back-carried equipment. When used with equipment that provides a harness for carrying the equipment on a user's back, this enclosure provides a number of features relating to the transportation, storage and usage of the equipment. When used as an enclosure for a backpack, the backpack is inserted into the enclosure and the contents are transported by means of a handle or shoulder strap in a manner similar to a duffel bag. Whenever the backpack must be left unattended for any period of time, a padlock can be used to interconnect the zippers to prevent the zippers from being unzipped. For additional security, a metal cable can be used to secure the invention and enclosed backpack to an an immobile object. This feature allows the traveler to leave the backpack unattended for short periods of time without the fear of theft of the contents or the backpack itself.