Facsimile and static presentation processing – Facsimile – Recording apparatus
Patent
1988-12-23
1991-11-12
Envall, Jr., Roy N.
Facsimile and static presentation processing
Facsimile
Recording apparatus
358342, 369 54, 369 58, 369107, 369124, H04N 591
Patent
active
050652532
ABSTRACT:
In a disk player, a tilt detection signal is generated corresponding to a tilt of a recording surface of a disk relative to a reference plane depending on a position of a pickup or a pickup radial position is generated. A reproduced video signal is passed through a noise reduction circuit having a transfer function which is changed in accordance with the tilt detection signal or the radial position signal so as to reduce a noise component. Accordingly, the influence of cross-talk on a picture caused by the tilt of the disk can be electrically reduced, and a complicated mechanism becomes unnecessary, so that it is possible to simplify the structure of the player. Moreover, it is not necessary to select a pickup in which the quantity of cross-talk is small against a tilt of a disk, so that it is possible to make the production cost low.
REFERENCES:
patent: 4064530 (1977-12-01), Kaiser et al.
patent: 4667225 (1987-05-01), Kanda
patent: 4682251 (1987-07-01), Hirota et al.
patent: 4700336 (1987-10-01), Yoshida et al.
patent: 4780865 (1988-10-01), Yamakawa
patent: 4825289 (1989-04-01), Ohta
patent: 4825300 (1989-04-01), Omori
Envall Jr. Roy N.
Pioneer Electronic Corporation
Young W. R.
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