Title:
REPRODUCED CHROMINANCE SIGNAL PROCESSING CIRCUIT
Document Type and Number:
Japanese Patent JP3128331
Kind Code:
B2
Abstract:
PURPOSE: To prevent the generation of color blur in a reproduced image by improving deadened characteristics in the rise/decay of a vertical component in a reproduced chrominance signal.
CONSTITUTION: This processing circuit is provided with a circular type chrominance signal noise reducing (CNR) means consisting of a subtractor 13 to which a reproduced chrominance signal is supplied, the 1st coefficient unit (coefficient K1) 20 for correcting the output of the subtractor and an nH (n=1 or 2) delay circuit 14 for delaying the output of the unit 20 and a signal correcting means 22 connected to the unit 20 to receive the reproduced chrominance signal through the 2nd coefficient unit (coefficient K2) 2 as a control signal and selectively output a signal.
Inventors:
Hiroshi Iizuka
Shigeru Miki
Shigeru Miki
Application Number:
JP16919392A
Publication Date:
January 29, 2001
Filing Date:
June 26, 1992
Export Citation:
Assignee:
Sanyo Electric Co., Ltd.
International Classes:
H04N9/64; H04N9/83; H04N9/87; (IPC1-7): H04N9/87; H04N9/64
Domestic Patent References:
| JP3212092A | ||||
| JP6184985A | ||||
| JP62200995A |
Attorney, Agent or Firm:
Masamasa Shibano
Previous Patent: JPH03128330
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