H - Electricity – 03 – H
Patent
H - Electricity
03
H
321/7
H03H 17/06 (2006.01)
Patent
CA 1305214
ABSTRACT OF THE DISCLOSURE A sampling frequency converter of a simplified constitution for use in a format conversion apparatus designed to convert sampled input data of an input sampling frequency into sampled output data of an output sampling frequency. The converter comprises over-sampling means supplied with the sampled input data for increasing the sampling frequency of the sampled input data by a predetermined factor or coefficient to provide over- sampled data; an output data extractor for periodically extracting data from the over-sampled data in response to a timing pulse having the output sampling frequency; and a controller for controlling the phase of the timing pulse to control the phase of the sampled output data. One of the sampled input and output data is a digital color signal such as a luminance signal conforming with the digital composite color signal format, while another of the sampled input and output data is a digital color signal such as a luminance signal conforming with the digital component signal format. And the controller serves to control the phase of the timing pulse in such a manner that the group delay imparted to the digital luminance signal becomes equal to the delay imparted to the digital color signal.
595867
Fujita Tadao
Inaba Yoshiaki
Kurose Yoshikazu
Ninomiya Takeshi
Takayama Jun
Gowling Lafleur Henderson Llp
Sony Corporation
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