What does a Time Base Corrector Do ?
The job of the Time Base Corrector is pretty much as it’s name implies. It stabilizes timing errors by digitizing the video and storing it in a buffer or memory if you will. There are two sides to a TBC… the input side buffer where the image is digitally stored and held for processing, and the output side buffer, where the processed data (image) is stored and held for output. Where the video pixels are placed in the input buffer is determined by the sync signals read off the videotape which unfortunately has time base errors. The output buffer is then clocked out, based on a stable reference timing clock and converted back into a standard composite or component video signal that can then be recorded. You might think of it as a variable video delay line… the delay employed being that required to correct the time base error. Synchronizing pulses such as horizontal sync, vertical sync, equalizing pulses, front porch, back porch, breezeway etc are re-generated to proper levels and timi
The job of the Time Base Corrector is pretty much as it’s name implies. It stabilizes timing errors by digitizing the video and storing it in a buffer or memory if you will. There are two sides to a TBC… the input side buffer where the image is digitally stored and held for processing, and the output side buffer, where the processed data (image) is stored and held for output. Where the video pixels are placed in the input buffer is determined by the sync signals read off the videotape which unfortunately has time base errors. The output buffer is then clocked out, based on a stable reference timing clock and converted back into a standard composite or component video signal that can then be recorded. You might think of it as a variable video delay line… the delay employed being that required to correct the time base error. Synchronizing pulses such as horizontal sync, vertical sync, equalizing pulses, front porch, back porch, breezeway etc are re-generated to proper levels and timi
