PICTURE-IN-PICTURE DEVICE FOR SINGLE-PICTURE TV SET

PICTURE-IN-PICTURE DEVICE FOR SINGLE-PICTURE TV SET

According to this invention, a single-picture TV set has a picture-in-picture furction without any change in circuit and structure. Such picture-in-picture device is composed of receiver, processing circuit, control circuit and output circuit for sub- and main-picture TV signals. The sub-picture ima...

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Hauptverfasser: LIN MIN, LIN KUNFU
Format: Patent
Sprache:eng
Schlagworte:
ELECTRIC COMMUNICATION TECHNIQUE
ELECTRICITY
PICTORIAL COMMUNICATION, e.g. TELEVISION
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creator LIN MIN
LIN KUNFU
description According to this invention, a single-picture TV set has a picture-in-picture furction without any change in circuit and structure. Such picture-in-picture device is composed of receiver, processing circuit, control circuit and output circuit for sub- and main-picture TV signals. The sub-picture image signal is decomposed into three components, intensity signal and phase difference and amplitude of chrominance signals and after digitalizing processing the picture is compressed, which is then mixed with the TV signals of main picture. Its output signals are composite video signals for sub- and main-picture plus high-frequency channel signal.
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Such picture-in-picture device is composed of receiver, processing circuit, control circuit and output circuit for sub- and main-picture TV signals. The sub-picture image signal is decomposed into three components, intensity signal and phase difference and amplitude of chrominance signals and after digitalizing processing the picture is compressed, which is then mixed with the TV signals of main picture. 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Such picture-in-picture device is composed of receiver, processing circuit, control circuit and output circuit for sub- and main-picture TV signals. The sub-picture image signal is decomposed into three components, intensity signal and phase difference and amplitude of chrominance signals and after digitalizing processing the picture is compressed, which is then mixed with the TV signals of main picture. Its output signals are composite video signals for sub- and main-picture plus high-frequency channel signal.</abstract><oa>free_for_read</oa></addata></record>
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subjects ELECTRIC COMMUNICATION TECHNIQUE
ELECTRICITY
PICTORIAL COMMUNICATION, e.g. TELEVISION
title PICTURE-IN-PICTURE DEVICE FOR SINGLE-PICTURE TV SET
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