Reproduction method for a disk player

Details Reproduction method for a disk player Reproduction method for a disk player

1987-12-21

1989-09-12

McElheny, Jr., Donald

Facsimile and static presentation processing

Facsimile

Recording apparatus

H04N 585

Patent

active

048665401

ABSTRACT:
A reproduction method for a digital disk player capable of playing both a standard compact disk containing only audio information and a composite disk having a first region containing only audio information and a second region containing both audio information and video information. The difference value between a present address as extracted from the information read from the disk and an expected address is continuously monitored. If the difference exceeds a prescribed value, it is judged that the reading spot of the pickup has jumped tracks. The beam is then moved back toward the expected address until the present address agrees with the expected address.

REFERENCES:
patent: 4142209 (1979-02-01), Hedlund et al.
patent: 4660100 (1987-04-01), Sugiyama et al.
patent: 4672472 (1987-06-01), Sugiyama et al.
patent: 4701897 (1987-10-01), Nakagawa

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