Patent ID: 7155121
Filing Date: 2006-12-26
Classification: H04B

Abstract:
1. A method comprising: splitting a SMPTE-standard optical stream into a primary optical stream and a secondary optical stream; converting the secondary optical stream to an electrical signal; identifying a clock signal and a data signal from the electrical signal; receiving a selection from a user indicating at least a particular bit position of the SMPTE-standard optical stream to be modified; determining whether the particular bit position of the SMPTE-standard optical stream is located in an active video portion, a horizontally ancillary data portion, a vertically ancillary data portion, a start-video timing portion, or an end active video timing portion of the SMPTE-standard optical stream; identifying the particular bit position in the determined portion of the SMPTE-standard optical stream based on at least the clock signal and the data signal; generating a gating signal at the particular bit position of the optical stream; delaying the primary optical stream to provide a delayed optical stream; synchronizing the delayed optical stream with the gating signal; and modifying the particular bit position of the delayed optical stream based on the gating signal.