Patent ID: 8542991
Filing Date: 2013-09-24
Classification: H04B

Abstract:
1. A method for employing an optical communication serial interface to power up a device from a powered down state to a powered on state, said device having a controllable power supply capable of powering down to a powered down state and powering up to a powered on state; said optical communication serial interface comprising at least an optical receiver element, a low level reception converter, and a high level command processor; said method comprising the steps of: said optical receiver element receiving serial optical signals and converting said received serial optical signals to electrical signals; said low level reception converter detecting and decoding said electrical signals to provide data and control words from detected and decoded normal said electrical signals; said high level command processor receiving data and control words from said low level reception converter; maintaining low level power to at least said optical receiver element and said low level reception converter of said optical communication serial interface while said device is in said powered down state; detecting a particular abnormal sequence of said electrical signals; and in response to detecting said particular abnormal sequence of said electrical signals, asserting a control signal to power up said device controllable power supply.