Changes
/* Data Encoding */
== Data Encoding ==
Teletext transfers 360 bits (45 bytes) per scanline; at a rate of 6.9375 Mbits/s (444 times the scanline rate). Transfer is restricted to a few scanlines (during VBlank period) so the effective transfer rate is less (and depends on the number of lines being used; which may vary from TV station to TV station).
Each byte includes a parity bit (so only 7bit per byte are actually containing usable data). The packets include some header/control bytes, and characters codes (using a variant of the standard ASCII character set).
