Synthesis of vertical blanking signal

Details Synthesis of vertical blanking signal Synthesis of vertical blanking signal

2003-12-23

2010-02-23

Ryman, Daniel J (Department: 2419)

Multiplex communications

Data flow congestion prevention or control

Flow control of data transmission through a network

C370S503000, C709S232000, C709S248000, C710S029000, C710S058000, C375S354000

Reexamination Certificate

active

07668099

ABSTRACT:
A method of controlling transmission of data from a computer to a video client via an interface device, comprising: reading a register on the interface device to obtain a value indicating temporal proximity to an occurrence of a vertical blanking interval occurs, the value increased incrementally until a vertical blanking interval occurs, and then being reset; deriving a time value, the time value indicating the occurrence of a vertical blanking interval; sending an interrupt to a processor on the computer at the occurrence of the vertical blanking interval; and invoking code in response to an occurrence of the video blanking interval.

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