Optical: systems and elements – Deflection using a moving element – Using a periodically moving element
Patent
1996-10-09
1999-07-13
Lefkowitz, Edward
Optical: systems and elements
Deflection using a moving element
Using a periodically moving element
359194, 359195, 375350, 4552262, H04B 700
Patent
active
059234547
ABSTRACT:
The present invention provides a modem (100), method (300) and device (103) for indicating received signal strength and presence for intensity modulated binary-coded data packets with reduced recovery time in a packet data receiving system. The device includes a receiver for binary coded wireless data packets having a first band-pass processing unit, for receiving modulated electromagnetic signals and converting the modulated electromagnetic signals to binary data signals and a second band-pass processing unit, coupled to the receiver, for providing a logarithmic received signal strength indicator signal, RSSI, using a low-frequency cutoff f.sub.L2 greater than a low-frequency cutoff f.sub.L1 of the first band-pass processing unit.
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Alameh Rachid M.
Eastmond Bruce C.
Silk S. David
Lefkowitz Edward
Motorola Inc.
Stockley Darleen J.
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