Telecommunications – Receiver or analog modulated signal frequency converter – With particular receiver circuit
Reexamination Certificate
2003-02-28
2009-08-11
Le, Nhan T (Department: 2618)
Telecommunications
Receiver or analog modulated signal frequency converter
With particular receiver circuit
C455S127500, C455S574000, C340S007380, C713S323000
Reexamination Certificate
active
07574192
ABSTRACT:
Method and arrangement for operating a communication system for communication between a central station (10) and one or a plurality or remote objects (20to25), as well as such an object, wherein at least one object is operated in a battery saving mode in which it is switched alternatively between a wake period for conducting communication between the object and the central station and a sleep period in which communication is inactive. Each object is designated a predetermined first time (t0) and a time interval (Dt), wherein each object initiates the wake periods at times t0+n (Dt) with n=0, 1, 2, . . . and wherein the time interval is longer than the wake period.
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International Search Report dated Nov. 30, 2001.
Le Nhan T
Novak Druce & Quigg LLP
Volvo Technology Corporation
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