Recording circuit for mirror mother tape
AssigneeSony Corporation
InventorsToshiharu Kobayashi, Keisuke Unno
Life of this patent
Estimating the term…
Abstract
In a recording apparatus for a mirror mother tape to be used in a contact-type magnetic printing process, a chrominance signal of an incoming color video signal is converted into a down converted chrominance signal having a reduced frequency fC, a beat cancelling signal having a frequency 2fC is generated from the down converted chrominance signal, the beat cancelling signal is added to a luminance signal of the incoming color video signal thereby generating an added signal, and the down converted chrominance signal is combined with the added signal to provide a composite signal which is recorded on a mirror mother tape.
Claims4
An apparatus for recording, on a mirror mother tape to be used in contact printing process, an incoming color video signal including a chrominance signal and a luminance signal, said apparatus comprising:
- means for down converting said chrominance signal into a down converted chrominance signal having a reduced carrier frequency fC;
- means for generating, from said down converted chrominance signal, a beat cancelling signal having a frequency 2 fC;
- means for adding said beat cancelling signal to said luminance signal so as to generate an added signal;
- means for combining said down converted chrominance signal with said added signal so as to provide a combined signal;
- and
- means for recording said combined signal on the mirror mother tape.
Dependencies are inferred from the claim text.