Time-based correctors (TBCs) are devices that correct timing errors in analog video signals caused by factors such as physical tape damage and stretching, noise or interference, or inconsistencies in recording or playback. In the past, TBCs were primarily used for tapes and analog signals that were more prone to these errors.

TBCs work by analyzing the incoming video signal and making adjustments to the timing of the signal to ensure that the output signal is in sync with the reference signal. They typically use advanced circuitry and algorithms to detect timing errors and then adjust the signal accordingly. This can help to eliminate many of the distortions and artifacts that were common in analog video signals.

While TBCs were once widely used in the production and broadcasting of analog video signals, they are no longer manufactured due to the decline of analog technology. Most modern video signals are now digital, and digital signals do not require the type of timing correction that TBCs provide. Instead, digital signals use error-correction algorithms to ensure that the signal remains consistent and error-free throughout transmission.

TBCs are still used today in the restoration of old tapes to help correct timing errors and reduce the effects of physical damage and stretching. They can also help to improve the overall picture quality of older analog video recordings.

Currently, we have only one converter model in stock that is equipped with TBC - Cypress CDM-640 Digital Multi-Scan Converter.