Hitachi-LG Data Storage Assigned Three Patents

Archive device
Hitachi-LG Data Storage Inc., Tokyo, Japan, has been assigned a patent (9,190,101) developed by Yamagishi, Hiroshi, Chiba, Japan, for a “archive device.”

The abstract of the patent published by the U.S. Patent and Trademark Office states: ”In an archive device which has a disc storing case which stores a plurality of discs, a disc writing/reading unit having an ODD, and a disc conveying unit which conveys each of the discs between both, the fixing strength for a drive fixer to be incorporated to fix the ODD can be increased. The archive device includes holding members which fix surfaces of the ODD in a direction parallel to a direction in which the disc is delivered and received between the disc conveying unit and the ODD, one of the holding members integrally including a detecting member which detects a relative position of the disc storing case with respect to the ODD. The holding members for the surfaces of the ODD may be individual components, and may be integrally formed.“

The patent application was filed on June 12, 2013 (13/915,894).

Optical information recording/reproducing device and recording/reproducing
Hitachi-LG Data Storage Inc., Tokyo, Japan, has been assigned a patent (9,190,097) developed by Fujita, Kouji, Tokyo, Japan, for a “optical information recording/reproducing device and optical information recording/reproducing method.”

The abstract of the patent published by the U.S. Patent and Trademark Office states: ”In an optical information recording/reproducing device that radiates signal light and reference light to a recording medium, forms a hologram, and records information and emits the reference light to the hologram of the recording medium and reproduces information, a laser light source that generates the signal light and the reference light, a light angle control unit that controls an angle of the reference light incident on the recording medium, a light detecting unit that detects diffracted light when the reference light is radiated, a positioning unit that allocates an address to the recording medium and performs positioning of the recording medium for the address, a tilt measuring unit that measures a tilt of the recording medium, and a control unit that controls the incidence angle of the reference light, on the basis of a tilt measurement result in a recording mode, in a reproduction mode, are included.“

The patent application was filed on November 5, 2014 (14/533,192).

Data archive system, data recording/reproducing and data library
Hitachi-LG Data Storage, Inc., Tokyo, Japan, and Hitachi Consumer Electronics Co., Ltd., Tokyo, Japan, has been assigned a patent (9,189,324) developed by Kobayashi, Masayuki, Kuki, Japan, for a “data archive system, data recording/reproducing apparatus and data library apparatus.”

The abstract of the patent published by the U.S. Patent and Trademark Office states: ”In a data recording and reproducing apparatus that includes a host computer and a drive in order to improve data reliability, in data recording, the host computer appends a first error correction code to the data and the drive appends a second error correction code to the data. When a failure has occurred in error correction performed by the drive using the second error correction code, the drive reads out the first error correction code and performs error correction using the first error correction code. Since error correction using the first error correction is possible even when error correction using the second error correction code ends in failure, the reliability of data is improved.“

The patent application was filed on March 29, 2013 (13/853,317).