Patent ID: 7108188
Filing Date: 2006-09-19
Classification: G11B

Abstract:
1. A library apparatus comprising: a medium storage having a plurality of storage cells for storing reading medium affixed barcode labels; a recording/reproducing device for either recording or reproducing information using the reading medium; a medium conveyor for conveying the reading medium between the medium storage and the recording/reproducing device; and a reader for reading optically the barcode labels of the reading medium carried on the medium conveyor by line scanning with one-dimensional imaging pixels, wherein the library apparatus further comprising: an inventory processing unit for reading by the reader the barcode labels of the recording medium by scanning a plurality times per one label as moving the medium conveyor and notifying of stored medium information; and a cause of error specification processing unit for determining the presence or absence of the barcode label by extracting an error data from a reading result obtained by the inventory processing unit, executing a predetermined retry process if a barcode label exists and reporting a determination result without executing the retry process if a barcode label does not exist.