1
Adam Kozma, Anthony Vander Lugt, Andrew M Bardos: Optical information storage system. Harris Corporation, December 13, 1977: US04063226 (50 worldwide citation)

A wideband holographic information storage system records Fourier holograms on film in rapid succession, each hologram storing 128 bits of data. The hologram fringe pattern is held stationary by varying the reference beam frequency to track the variations of frequency of the signal beam that are cau ...


2
James R Amble, Lambrerrtus Hesselink, Tokyuki Honda, Mark E McDonald, Michael V Morelli, Andrew J Daiber, Herman A Ferrier, Sanjoy Ghose, Thomas A Kridl, Matthew Lipson, Shunichi Nishimura, Sergei Sochava, LeRoy A Volz: Optical data storage system with multiple layer media. Siros Technologies, Sierra Patent Group, June 3, 2003: US06574174 (44 worldwide citation)

An optical information storage system using optical storage media including multiple data layers or stacks wherein each of the multiple data stacks has a storage density comparable to a conventional single layer optical disk. The optical data storage system comprises an optical medium having a singl ...


3
Bruno F Ludovici, Gerhard K Megla: Optical information storage system. Corning Glass Works, William J Simmons Jr, Walter S Zebrowski, Clarence R Patty Jr, September 21, 1976: US03982151 (36 worldwide citation)

An optical information storage system is disclosed which comprises a cathode ray tube having a photochromic fiber optic face plate on which data can be written by appropriate modulation and deflection of the electron beam. The readout function is accomplished by scanning appropriate portions of the ...


4
Antonius H M Holtslag, Derk Visser, Peter Coops, Jacobus P J Heemskerk: Multi-layer information storage system with improved aberration correction. U S Phillips Corporation, David R Treacy, October 14, 1997: US05677903 (36 worldwide citation)

An optical information storage system has a multi-recording layer record carrier and a scanner device for the carrier. The scanner produces a radiation beam which is compensated for spherical aberration for a single height of the scanning spot with the stack of layers. The height of the stack is det ...


5
Silverman Daniel: Random access multiple disc optical information storage system. November 20, 1973: US3774172 (28 worldwide citation)

A plurality of rotating disc storage media are precisely positioned with respect to a central movable arm and transducer such that the transducer can be selectively and sequentially positioned to a desired track on a desired disc in the group of discs. A second group of discs, positioned on the same ...


6
John F Heanue, Mark A Wardas: High numerical aperture objective lens manufacturable in wafer form. Seagate Technology, Mark A Wardas, April 11, 2000: US06049430 (15 worldwide citation)

A composite micro-lens for use in an optical or magneto-optical information storage system, made up of one or more lens elements which, when coupled in assembly, provide a desired numerical aperture. The design may provide, if necessary, a photo resist lens, a shaped ball lens, or one or more contou ...


7
Masahiro Ojima, Toshio Niihara, Hideo Fujiwara: Magneto-optic information storage system utilizing a self-coupled laser. Hitachi, Antonelli Terry & Wands, February 18, 1986: US04571650 (14 worldwide citation)

An optical information storage system wherein information is read from a magneto-optical storage medium by indicating the storage medium with a first laser beam generated by a semiconductor laser and exploiting the self-coupling effect of the semiconductor laser in response to light reflected from t ...


8
Schneider Irwin: Three dimensional optical information storage system. November 6, 1973: US3771150 (13 worldwide citation)

A system for storing information in or retrieving information from a three dimensional memory element is described. The storage principle is based upon aligning anisotropic color centers in alkali halide crystals and thereby producing dichroic absorptions which are equated to the stored information. ...


9
Antonius H M Holtslag, Derk Visser, Peter Coops, Jacobus P J Heemskerk: Multi-layer information storage system with improved aberration correction. U S Philips Corporation, David R Treacy, November 24, 1998: US05841753 (10 worldwide citation)

An optical information storage system has a multi-recording-layer record carrier and a scanner device for the carrier. The scanner produces a radiation beam which is compensated for spherical aberration for a single height of the scanning spot with the stack of layers. The height of the stack is det ...


10
Yoshiharu Tanaka: Focussing lens operating device. Mansei Kogyo Kabushiki Kaisha, Oblon Fisher Spivak McClelland & Maier, April 16, 1985: US04511212 (10 worldwide citation)

An optical focussing device for an optical information storage system. A hollow cylindrical holder carries a lens at its upper end. The holder is connected to a frame by two thin plates adjacent each other near the upper end and by one thin plate at a lower position. A vibration diminution element i ...