摘要:
A mobile communication device (202) outside the service area of a communications network 210 in need of satellite positioning assistance information to perform a location determination (308). The mobile communication device receives the assistance information from a peer mobile communication device (204, 206) over a direct link.
摘要:
A location determination device (104) is worn on a user's head to facilitate searching and tracking for another individual carrying a portable radio (102) as well as locating exit routes. At least two antennas (108), a monopulse receiver (110) and a display are integrated into the location determination device (104). Location determination device (104) scans for an incoming signal (106) from the portable device (102) and coverts the signal into angular location data. The location data and egress information are displayed to the peripheral vision of the user of the location determination device (104).
摘要:
A rotary control assembly (400) for a communication device includes a magnetic sensor (410) integrated within a housing (406) and a magnet (404) integrally coupled to a rotary control (402) for controlling the magnetic sensor. User rotation of the rotary control (402) and integral magnet (404) controls resistance of the magnetic sensor (410). The variation in resistivity of the magnetic sensor (410) corresponds to selection options associated with the rotary control. The rotary control assembly (400) provides a self-sealed environment. Either continuous variable control or defined detent control can be incorporated into a communication device using assembly (400).