Abstract: An arrangement (20) for locating at least one device (22) utilizes an assisted global positioning system technique based upon Internet communications. In a disclosed example, a network server (26) detects the presence of a device (22) on the Internet (24). The network server (26) makes an initial estimate of a location of the device based upon Internet information regarding the device (22). The initial estimate is used by a location server to generate an assisted global positioning system communication that is provided to the device (22). An assisted global positioning system receiver (72) associated with the device (22) uses the received communication for interacting with a global positioning system (32). An indication of that interaction can then be used by the network server (26) or the location server (28) for making an actual device location determination.

Abstract: A method for maintaining the relative timing between each of a series of datastreams generated at a first site and transmitted to a second site including the steps of selecting a pulse generated by a clock having a time reference such as time-of-day and marking it with a descriptor. The descriptor and the time reference of the pulse are then transmitted to the second site. Next, a sample, that occurs after the pulse, is identified for each of the datastreams. An offset from the pulse to the next sample is then calculated for each of the datastreams. Next, the descriptor, a pointer to the next sample and the offset for each of the datastrearns is transmitted together with the corresponding datastreams to the second site. Using the pointer, the next sample in each of the datastreams is then located. Finally, the relative timing of each of the series of datastreams is reconstructed based on the next sample and the offset.