VIDEO MOIRE REDUCTION

VIDEO MOIRE REDUCTION

IN A METHOD OF REDUCING A MOIRE PHENOMENON IPON DISPLAY OF A VIDEO SIGNAL ON A DISPLAY DEVICE (4), THE VIDEO SIGNAL IS LOW-PASS FILTERED (2) WITH A CUT-OFF FREQUENCY SUBSTANTIALLY CORRESPONDING TO A MAXIMUM FREQUENCY OF A BASEBAND PORTION OF THE VIDEO SIGNAL, TO OBTAIN A LOW-PASS FILTERED VIDEO SIGN...

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Bibliographische Detailangaben
1. Verfasser: SLUYTERMAN ALBERTUS AEMILIUS SEYNO
Format: Patent
Sprache:eng
Schlagworte:
ADVERTISING
ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICESUSING STATIC MEANS TO PRESENT VARIABLE INFORMATION
CRYPTOGRAPHY
DISPLAY
EDUCATION
ELECTRIC COMMUNICATION TECHNIQUE
ELECTRICITY
PHYSICS
PICTORIAL COMMUNICATION, e.g. TELEVISION
SEALS
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Beschreibung
Zusammenfassung:IN A METHOD OF REDUCING A MOIRE PHENOMENON IPON DISPLAY OF A VIDEO SIGNAL ON A DISPLAY DEVICE (4), THE VIDEO SIGNAL IS LOW-PASS FILTERED (2) WITH A CUT-OFF FREQUENCY SUBSTANTIALLY CORRESPONDING TO A MAXIMUM FREQUENCY OF A BASEBAND PORTION OF THE VIDEO SIGNAL, TO OBTAIN A LOW-PASS FILTERED VIDEO SIGNAL. THE LOW-PASS FILTERED VIDEO SIGNAL IS FILTERED (3) IN ACCORDANCE WITH A TRANSFER FUNCTION SUBSTANTIALLY CORRESPONDING TO THE INVERSE OF THE TRANSFER FUNCTION OF THE DISPLAY DEVICE, TO OBTAIN A FILTERED SIGNAL. FINALLY, THE FILTERED SIGNAL IS APPLIED (3A) TO THE DISPLAY DEVICE (4).(FIG. 1)