Simple Digital Encoder for NTSC Composite Video

Autor: Milles, George T.
Rok vydání: 1988
Druh dokumentu: Proceedings<br />Text
ISSN: 0884-5123
0074-9079
Popis: International Telemetering Conference Proceedings / October 17-20, 1988 / Riviera Hotel, Las Vegas, Nevada
The need exists to encode NTSC composite video into a serial digital bit stream for encryption prior to transmission. Further, this need exists in places where power and volume are at a premium. This paper describes a simple solution using the Continuously Variable Slope Delta Modulation technique of encoding all lines and fields in real time and is usable with clock rates from 5 to 25 MHz. The circuits presented use only a 5-volt power supply and two active devices: a comparator and either a dual flip-flop or serial shift register.
Databáze: Networked Digital Library of Theses & Dissertations