Method and apparatus for preventing duplex recording on informat

Details Method and apparatus for preventing duplex recording on informat Method and apparatus for preventing duplex recording on informat

1987-04-21

1988-12-27

Psitos, Aristotelis M.

Dynamic information storage or retrieval

Condition indicating, monitoring, or testing

Including radiation storage or retrieval

369 50, 369 44, 360 7804, 360 744, 360 60, G11B 1504

Patent

active

047945826

ABSTRACT:
A method and apparatus for preventing duplex recording on an information recording medium comprising unrecorded tracks and pre-recorded tracks detects an unrecorded track having a starting address where a recording is to be started, detects a first pre-recorded track occurring after the unrecorded track, confirms an address of the first pre-recorded track by reproducing address signals from vicinities of the first pre-recorded track, records an information signal on unrecorded tracks occurring after the unrecorded track having the starting address, and forcibly stops the recording of the information signal at an unrecorded track having an address which is one less than the address of the first pre-recorded track.

REFERENCES:
patent: 4689778 (1987-08-01), Miwa et al.
patent: 4698702 (1987-10-01), Miyake

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