Radio-controlled clock and method for gaining time information
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United States of America Patent
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-
Jan 8, 2008
Grant Date -
Sep 15, 2005
app pub date -
Jan 28, 2005
filing date -
Jan 29, 2004
priority date (Note) -
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status (Latency Note)
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Abstract
Time signals for controlling a radio clock are transmitted by a transmitter and received by a receiver as amplitude modulated time signals, formed of a multitude of time frames. Each time frame has a constant duration. These time signals are first automatically amplified. A so-called telegram of at least one received time signal is stored in a memory. At least one change of an amplitude of a time signal is determined in advance or predetermined and such amplitude change has a duration that is longer than a given or determined duration (.DELTA.t). When a predetermined amplitude change begins the automatic amplification is locked-in. The present circuit arrangement for operating a radio-controlled clock is equipped with components for performing the foregoing operations.
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