Manner and the device in order to generate the color video signal where it can raise the degree of definition of verticality from the color television signal of canonical bandwidth

摘要

(57) Abstract (1) the interlaced scanning television signal of the 21 of the canonical bandwidth which has compatibility, the analog signal or the digital signal of the canonical format like canonical NTSC or the PAL television signal, for example digital representation of canonical NTSC or the PAL television signal, or, the analog or the digital component of the digital video signal in one of the hierarchical format of interlaced scanning CCIR of the 2:1 601 (for example RGB, Y/I/Q, Y/U/V, Y/RY/BY and Y/Cr/Cb, and so on) from interlaced scanning to be converted by sequential scanning, sequential scanning frame speed, to correspond to interlaced scanning field speed, each of the sequential scanning frame, each scanning line of interlaced scanning field 2It possessed the scanning line of time, this conversion was called line 2 time conversion often, (2) as for line speed of the sequential scanning signal, with the interpolation which includes the after-treatment filtering the appropriateness to be augmented and (line speed of sequential scanning signal was doubled 2, is, as for effect as whole as for the signal when often line 4 time conversion, or, sequential scanning signal scan speed power it is done with 1.5, it is called line 3 time conversion,), and (3) as a result the spectrum it is expanded in the vertical field. The bandwidth enhancement of verticality simulate the vertical detail signal of wide bandwidth. The detail signal of verticality is guided from signal itself it has the compatibility which was treated oneself.