Common data line signaling and method
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United States of America Patent
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May 10, 2011
Grant Date -
Jan 8, 2009
app pub date -
Jul 2, 2007
filing date -
Jul 2, 2007
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A semiconductor device that includes transmitter circuits and receiver circuits that share a common data line and method is disclosed. Each transmitter circuit may include a frequency modulator that receives a stream of data and provides a frequency modulated data output at a predetermined carrier frequency. Each receiver may include a band pass filter that allows a corresponding frequency modulated data output from a corresponding transmitter circuit to pass through to a demodulator while essentially excluding the other frequency modulated data. In this way, a plurality of transmitter circuits can simultaneously transmit data with each one of the plurality of transmitter circuits transmitting data to a predetermined receiver circuit.
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