Controller circuit and method for estimating transmission delay
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United States of America Patent
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Apr 2, 2019
Grant Date -
Jun 28, 2018
app pub date -
Dec 11, 2017
filing date -
Dec 27, 2016
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Abstract
A controller circuit includes a first signal processing device processing signals in accordance with a first predetermined rule, a second signal processing device processing signals in accordance with a second predetermined rule, a data bus coupled between the first signal processing device and the second signal processing device and comprising multiple data lines, and a confirm signal line coupled between the first signal processing device and the second signal processing device. The first signal processing device transmits a synchronization signal to the second signal processing device via the data bus. The second signal processing device estimates transmission delay on each data line according to the synchronization signal, performs transmission delay compensation on each data line according to the estimated transmission delay and transmits a confirmation signal on the confirm signal line to notify the first signal processing device that the transmission delay compensation is complete.
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