US 8,275,256 B2 · Power up of device via optical serial interface

Abstract

An optical communication serial interface is employed to power up a device from a powered down state to a powered on state. An optical receiver element receives serial optical signals transmitted by at least one optical fiber and converts the received serial optical signals to electrical signals. A low level reception converter detects and decodes the electrical signals to provide data and control words from detected and decoded normal electrical signals for a high level command processor. A power supply maintains low level power to at least the optical receiver element and the low level reception converter of the optical communication serial interface while the device is in the powered down state. The low level reception converter detects a particular abnormal sequence of electrical signals; and in response to detecting the particular abnormal sequence of electrical signals, asserts a control signal to power up the device controllable power supply.

Claims15

Dependent claims

An optical communication serial interface for a device, said device having a controllable power supply capable of powering down to a powered down state and powering up to a powered on state, comprising:

a low level power supply configured to provide power without regard to said powered up and powered down states of said device power supply;
and
an optical communication receiver configured to receive serial optical signals, comprising:
an optical receiver element powered by said low level power supply configured to receive said serial optical signals and convert said received serial optical signals to electrical signals;
and
a low level reception converter powered by said low level power supply configured to detect and decode said electrical signals;
to provide data and control words from detected and decoded normal said electrical signals to a high level command processor;
to detect a particular abnormal sequence of said electrical signals;
and to, in response to detecting said particular abnormal sequence of said electrical signals, assert a control signal to power up said device controllable power supply.

6 more elements

A power supply system, comprising:

at least one power supply comprising:
a controllable power supply capable of powering down to a powered down state and powering up to a powered on state;
and
a low level power supply configured to provide power without regard to said powered up and powered down states of said device power supply;
and
an optical communication receiver configured to receive serial optical signals transmitted by at least one optical fiber, comprising:
an optical receiver element powered by said low level power supply configured to receive serial optical signals and convert said received serial optical signals to electrical signals;
and
a low level reception converter powered by said low level power supply configured to detect and decode said electrical signals;
to provide data and control words from detected and decoded normal said electrical signals to a high level command processor;
to detect a particular abnormal sequence of said electrical signals;
and to, in response to detecting said particular abnormal sequence of said electrical signals, assert a control signal to power up said device controllable power supply.

9 more elements

An optically coupled device, comprising:

an operational element configured to receive and transmit information;
at least one power supply comprising:
a controllable power supply capable of powering down to a powered down state and powering up to a powered on state, said controllable power supply powering said operational element;
and
a low level power supply configured to provide power without regard to said powered up and powered down states of said device power supply;
and
an optical communication transceiver configured to receive and transmit serial optical signals, comprising:
a high level command processor configured to provide and receive data and control words, and communicate with said operational element;
a low level transmission protocol converter configured to encode data and control words received from said high level command processor into sequences of transmission electrical signals;
an optical transmission element to convert said transmission electrical signals to serial optical signals for transmission;
an optical receiver element powered by said low level power supply configured to receive serial optical signals and convert said received serial optical signals to electrical signals;
and
a low level reception converter powered by said low level power supply configured to detect and decode said electrical signals;
to provide data and control words from detected and decoded normal said electrical signals to said high level command processor;
to detect a particular abnormal sequence of said electrical signals;
and to, in response to detecting said particular abnormal sequence of said electrical signals, assert a control signal to power up said device controllable power supply.

13 more elements

Dependencies are inferred from the claim text.

Power up of device via optical serial interface

Life of this patent

Power up of device via optical serial interface

Life of this patent

Abstract

Claims15