Multiplex communications – Communication over free space – Signaling for performing battery saving
Patent
1997-02-28
2000-01-18
Pham, Chi H.
Multiplex communications
Communication over free space
Signaling for performing battery saving
370335, 455 383, 455343, G08C 1700, H04B 7216
Patent
active
060163127
ABSTRACT:
A radiotelephone (104) in a radiotelephone system (100) enters a low power sleep mode and times the duration of the sleep mode using a sleep clock generator (205) having a coarse resolution. The radiotelephone synchronizes timing of the radiotelephone to system timing using an oscillator (116) having a fine resolution. The radiotelephone then exits the low power sleep mode synchronized with system timing.
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Cahill Stephen V.
Callicotte Mark J.
Storm Brian D.
Mancini Brian
Motorola Inc.
Nguyen Steven
Pham Chi H.
Rauch John G.
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