Abstract: A system and method is provided for wirelessly tracking a tracking device. The subject of the tracking device may be a person, group of people or an article of interest. The tracking device receives location information via GPS and transmits the location information to a remote server via a cellular network or some other communications network. The server may be employed to identify the subject of the tracking device, change operational parameters of the tracking device and may otherwise analyze the information received from the tracking device. Based on the analysis, the server may recommend or may make changes to the operational parameters of the tracking device.

Abstract: According to one embodiment of the invention, a method of operation involves concurrently receiving spread-spectrum wireless signals from a plurality of sources by a listening device for a hearing-impaired user. These spread-spectrum wireless signals comprise audio in a digital format. The audio is filtered so as to retain audio within a specified audible frequency range set by the hearing-impaired user. The filtered audio is converted into an analog format, and thereafter, is subsequently output for perception by the user. This provides a cost-effective solution for the hearing-impaired in order to avoid unwanted ambient noise normally amplifier by conventional hearing aids.