D1 EMBEDDED PROGRAMMING INTERFACE

摘要

The present invention provides an implementation of a D1 embedded programming interface that allows savings of expensive programming pins by embedding programming data into digital video/graphics data. The programming data are then sent, as normal VBI (vertical blanking interval) data, to a D1 receiving digital video/graphics device through a D1 interface. The invention also provides a way to synchronize the programming events with the digital video/graphics stream easily and gives the flexibility of programming/reprogramming a D1 receiving digital video/graphics device in real time. In the present invention, a data formatter is provided to implement a D1 embedded programming interface. According to the invention, the programming data may be embedded in a vertical blanking interval in an output stream. Alternatively, the programming data may be embedded in a horizontal blanking interval, or in both a vertical blanking interval and a horizontal blanking interval in the output stream.