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US 2003/0118348 A1Published application
Method and system for providing controlled impairments to an optical transport system
AssigneeSBC Technology Resources, Inc.
InventorPierre Costa
Life of this patent
Estimating the term…
Abstract
An optical stream is split into a primary optical stream and a secondary optical stream. The secondary optical stream is converted to an electrical signal. The electrical signal is processed to identify a particular portion of the optical stream. The primary optical stream is delayed to provide a delayed optical stream. The particular portion of the delayed optical stream is modified to provide a controlled impairment.
Claims31
A method comprising:
- splitting an optical stream into a primary optical stream and a secondary optical stream;
- converting the secondary optical stream to an electrical signal;
- processing the electrical signal to identify a particular portion of the optical stream;
- delaying the primary optical stream to provide a delayed optical stream;
- and
- modifying the particular portion of the delayed optical signal.
3 more elements
An apparatus comprising:
- an optical splitter to split an optical stream into a primary optical stream and a secondary optical stream;
- an optoelectronic converter to convert the secondary optical stream to an electrical signal;
- a processor to process the electrical signal to identify a particular portion of the optical stream;
- an optical delay to delay the primary optical stream to provide a delayed optical stream;
- and
- an optical switch responsive to the processor to modify the particular portion of the delayed optical signal.
3 more elements
A method comprising:
- identifying a particular portion of an in-transit SMPTE-standard digital video stream, the particular portion selected from the group consisting of an active video portion, a horizontal ancillary data portion, a vertical ancillary data portion, a start active video timing portion and an end active video timing portion;
- and
- introducing at least one bit error in the particular portion of the in-transit SMPTE-standard digital video stream.
An apparatus comprising:
- a processor to identify a particular portion of an in-transit SMPTE-standard digital video stream, the particular portion selected from the group consisting of an active video portion, a horizontal ancillary data portion, a vertical ancillary data portion, a start active video timing portion and an end active video timing portion;
- and
- a switch responsive to the processor to introduce at least one bit error in the particular portion of the in-transit SMPTE-standard digital video stream.
An apparatus comprising:
- a logic component to identify a particular portion of an in-transit SMPTE-standard digital video stream, the particular portion selected from the group consisting of an active video portion, a horizontal ancillary data portion, a vertical ancillary data portion, a start active video timing portion and an end active video timing portion, and to introduce at least one bit error in the particular portion of the in-transit SMPTE-standard digital video stream.
Dependencies are inferred from the claim text.