US Patent 7587541 Master-slave device communication circuit
Patent 7587541 was granted and assigned to Hon Hai Precision Industry Co Ltd on September, 2009 by the United States Patent and Trademark Office.
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A master-slave device communication circuit includes a master device, a bus, and a slave device having a bus switch connected to the master device via the bus, and a status detecting circuit. The status detecting circuit includes a power input terminal and a detecting signal output terminal. A power terminal of the master device is connected to the power input terminal of the status detecting circuit. The detecting signal output terminal is connected to the bus switch and a trigger pin of the master device. When the master device supplies power to the slave device via the power terminal thereof, the detecting signal output terminal transmits a control signal to control the bus switch to turn on the bus and trigger the master device to communicate with the slave device after a delay time.
US Patent 07587541 Master-slave device communication circuit US Patent 7587541 Master-slave device communication circuit
US Patent 07587541 Master-slave device communication circuit
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