CONTOUR EMPHASIS CIRCUIT

PROBLEM TO BE SOLVED: To provide a contour emphasis circuit resistant to noise, and capable of making a circuit system small in size and low in cost. SOLUTION: By differentiating source signals (a) in the two primary differentiation circuits 11 and 12 of different time constants and adding/subtracti...

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Bibliographic Details
Main Author TSUCHIYA MICHITOSHI
Format Patent
LanguageEnglish
Published 11.08.2000
Edition7
Subjects
ADVERTISING
ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICESUSING STATIC MEANS TO PRESENT VARIABLE INFORMATION
CALCULATING
COMPUTING
COUNTING
CRYPTOGRAPHY
DISPLAY
EDUCATION
ELECTRIC COMMUNICATION TECHNIQUE
ELECTRICITY
IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
PHYSICS
PICTORIAL COMMUNICATION, e.g. TELEVISION
SEALS
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Summary:PROBLEM TO BE SOLVED: To provide a contour emphasis circuit resistant to noise, and capable of making a circuit system small in size and low in cost. SOLUTION: By differentiating source signals (a) in the two primary differentiation circuits 11 and 12 of different time constants and adding/subtracting the respective primary differentiation outputs (b) and (c) of the primary differentiation circuits 11 and 12 to the source signals (a) in an adder-subtractor 16, a signal waveform (e) after contour emphasis to which the undershoot component of a black side and the overshoot component of a white side are added is obtained.
Bibliography:Application Number: JP19990019262