Genlock and Timing Regeneration for Multiple Formats of High-Definition Video and Digital Cinema

Michael Poimboeuf

For high-definition video and film, both symmetric (1-to-1) and asymmetric combinations of sources and timings are used for output genlock. This paper describes techniques being used in a system to lock both types of combinations. To simplify the numerical complexity of these timing relationships, a new mathematical notation (recently invented for describing digital audio timing relationships), called the “log prime” vector is introduced. This paper considers timing stability challenges for high-definition interfacing, and presents the genlock architecture of a high-definition I/O board now being used in multiprocessor computer servers and graphics supercomputers.

Print ISSN
Published
2001-04
Content type
Original Research
DOI
10.5594/J12433