Information retrieval apparatus

Details Information retrieval apparatus Information retrieval apparatus

1988-12-22

1992-09-08

Cuchlinski, Jr., William A.

Optics: image projectors

Selective data retrieval

Film strip

353 25, G03B 2308

Patent

active

051462478

ABSTRACT:
An information retrieval apparatus for retrieving desired information in an information recording medium by driving the information recording medium and detecting a mark put on the driven information recording medium has a drive controller for controlling the drive of the information recording medium in accordance with measurement of an interval of marks of the information recording medium measured at the start of retrieval of the information recording medium.

REFERENCES:
patent: 3958874 (1976-05-01), Uchida et al.
patent: 3999846 (1976-12-01), Sone et al.
patent: 4016406 (1977-04-01), Abe et al.
patent: 4436391 (1984-03-01), Kashiwagi
patent: 4600841 (1986-07-01), Toruno et al.
patent: 4665318 (1987-05-01), Toda et al.

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