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Patent Searching and Data


Title:
GHOST ELIMINATING DEVICE
Document Type and Number:
Japanese Patent JPS5848581
Kind Code:
A
Abstract:

PURPOSE: To inexpensively incorporate a ghost eliminating device in a television receiver, by detecting an amplitude of a signal in which a ghost component has eliminated, and making the amplitude of the signal constant.

CONSTITUTION: Controlling the signal amplitude of an input composite video signal to make it a constant value A, the amplitude A is reduced to an amplitude B by eliminating ghost from the input composite video signal at a ghost eliminating device. A compensating signal in response to the attenuation is generated from an addition coefficient compensating circuit 6 and superimposed directly on a contrast control terminal. Thus, waveform equalization can easily be realized without adding a special circuit.


Inventors:
YASUMOTO YOSHIO
SHINPO HIROYASU
SHIOTANI YUUICHI
Application Number:
JP14765081A
Publication Date:
March 22, 1983
Filing Date:
September 17, 1981
Export Citation:
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Assignee:
MATSUSHITA ELECTRIC IND CO LTD
International Classes:
H04N5/21; (IPC1-7): H04N5/48
Domestic Patent References:
JPS54118130A1979-09-13
JPS5416919A1979-02-07
Attorney, Agent or Firm:
Toshio Nakao