| 摘要 |
There is disclosed systems and methods for controlling communication of navigation positioning information from a source of said information to another device for tracking purposes. In one embodiment, a user having a communicating device that maintains a record of its present location establishes a communication link to one or more selected targets and then grants permission to his/her device to continually send updates of his/her device's position to said selected other devices. These updated communications can be on a data channel of a voice communication device if desired. In one embodiment, said receiving device can deliver said coordinates (translated into street locations if desired) in an audio fashion, or said receiving device can visually display (perhaps on a grid overlay) said position of said sending device or environmental data from said sending device.
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