Efficient Transmission of Digital Component Video.

Efficient transmission of digital component video by two basic approaches is discussed. The first approach includes sub-Nyquist sampling, DPCM encoding, and decoding with comb filter reconstruction. The second approach utilizes sample interleaving, DPCM encoding, and digital interpolation reconstruction. Other techniques such as sliding scale quantization, luminance bounding of the chrominance, and video transmission during the normal blanking can be applied to either approach to help reduce the transmission rate to the DS3C (approximately 90 Mb/s) or even to be DS3 (approximately 45 Mb/s) level of the North American digital hierarchy. A number of implementations that can deliver high quality component transmission at either 90 Mb/s or 45 Mb/s are described.