Telecommunications – Transmitter and receiver at same station – Radiotelephone equipment detail
Reexamination Certificate
2011-03-01
2011-03-01
Tran, Pablo N (Department: 2618)
Telecommunications
Transmitter and receiver at same station
Radiotelephone equipment detail
C455S266000, C455S452200, C455S513000
Reexamination Certificate
active
07899488
ABSTRACT:
A method and apparatus for power conservation is provided for a multi-mode wireless communication device (100) capable of operating in a plurality of networks, each of the plurality of networks having a network signal with predetermined spectral characteristics. The wireless communication device (100) includes a variable bandwidth signal detector (140), a threshold detector (145), and a controller (120). The variable bandwidth signal detector (140) receives radio frequency (RF) signals and defines a detection bandwidth for signal detection. The threshold detector (145) is coupled to the variable bandwidth signal detector (140) and detects a network signal within the RF signals in response to determining whether a signal is present within the detection bandwidth having a signal strength greater than a predetermined signal strength. The controller (120) is coupled to the variable bandwidth signal detector (140) and the threshold detector (145) and offsets a center of the detection bandwidth of the variable bandwidth signal detector (140) in response to the predetermined spectral characteristics of the network signal.
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Dickinson Timothy A.
Johnson Robert M.
Leyh Arthur C.
Wangard William E.
Motorola Mobility, Inc.
Tran Pablo N
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