Information reproducing apparatus for optically reading a data c

Motion video signal processing for recording or reproducing – Local trick play processing – With randomly accessible medium

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3692753, 360 47, 360 48, H04N 576, G11B 370, G11B 509

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active

060978759

ABSTRACT:
A dot code consists of a group of plurality of blocks arranged in a matrix manner, and each block has markers, an array direction detecting code, a block address, and block recorded data. A dot code in which two rows and (N/2) columns of N blocks having block addresses 1 to N are arranged and which has an effective code width CEW is doubly provided, i.e., two such dot codes are recorded parallel on an information recording medium. A recording code width CRW in this case is twice the effective code width CEW.

REFERENCES:
patent: 4970712 (1990-11-01), Tsuruoka et al.
patent: 5101096 (1992-03-01), Ohyama et al.
patent: 5124536 (1992-06-01), Priddy et al.
patent: 5309292 (1994-05-01), Takakura

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