Did You Know...
...that after Parker Brothers executives turned down the game of Monopoly because it had "52 fundamental errors" (including taking too long to play), a copy of the game wound up in the home of the company president who stayed up until 1 a.m. to finish playing it? He was so impressed by the game that the next day he wrote to inventor Charles Darrow and offered to buy it!
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| Number | Title | Issue Date |
| 7782731 | Optical hard disk drive having a phase-change microhead array chip An optical data-storage hard disk drive that uses stationary Phase-Change Microhead Array Chips in place of conventional flying-heads, rotary voice-coil actuators, or other similar types of servo-tracking mechanisms to simultaneously record and/or reproduce data to ... | 08/24/2010 |
| 7352672 | Device for and method of determining the quality of a data signal In the case of determination means (10) for determining the quality of a data signal (DS), which data signal (DS) consists of data blocks, wherein each data block is at least two-dimensional in structure and comprises at least two data zones, there are provid... | 04/01/2008 |
| 7339874 | Tape recording system with coupled paired roller guides A tape recording system is provided for coupling the angular velocities of a pair of roller guides disposed one on either side of a head assembly. In one embodiment, the roller guides each comprise cylindrical first and second surfaces wherein the first surfaces gui... | 03/04/2008 |
| 7330325 | Proactive fault monitoring of disk drives through phase-sensitive surveillance One embodiment of the present invention provides a system that proactively monitors a disk drive to detect an impending disk drive failure. During operation, the system obtains a time-varying electrical signal which is generated by the spindle rotation during operat... | 02/12/2008 |
| 7289285 | Information storage systems An information storage apparatus includes a storage media including a plurality of information tracks. Each storage medium has a head assembly having a substantially planar surface and a plurality of read/write heads positioned in registry with the information track... | 10/30/2007 |
| 7261250 | Roller guide tape path A tape guide mechanism in a storage device is disclosed for defining an improved roller guide tape path. A cartridge reel is provided for supplying tape to a take-up reel. Multiple flanged guides are provided located remotely from the cartridge and take-up reels. A ... | 08/28/2007 |
| 7242772 | Encryption apparatus and method for synchronizing multiple encryption keys with a data stream A data stream, such as a digital motion picture, is encrypted in units of one or more blocks, each block having an assigned encryption key. A plurality of encryption keys is assigned to the complete data stream, with a synchronization index provided to map each indi... | 07/10/2007 |
| 7230784 | High bandwidth data transfer to and from rotating data storage devices A method of transferring data of one or more rotatable data storage devices includes but is not limited to rotating the at least one rotatable data storage device; transferring the data between a plurality of stationary data transfer heads and the one or more rotata... | 06/12/2007 |
| 7148503 | Semiconductor device, function setting method thereof, and evaluation method thereof The present invention provides a semiconductor device, in which a plurality of chip IPs are mounted onto a common semiconductor circuit board, an evaluation method for the same, and a function setting method for the same. Various IP groups can be mounted as chip IPs... | 12/12/2006 |
| 7076782 | Method, computer program product, and system for creating form independent applications operative on IMS resources A form independent application program operation is performed on one or more Information Management System (IMS) resources by locating the Program Control Block (PCB) associated with an IMS resource exclusive of predetermined knowledge pertaining to IMS construct fo... | 07/11/2006 |
| 7068583 | Nano-scale resolution optical pickup for reading/writing ultra-high density data on CD and DVD data storage elements A single high resolution holographic pickup, for reading/writing both a CD and DVD optical recording medium, has an electrical tuning control for applying a DC and AC signal to a tunable Bragg cell, which AC is phase locked with respect to the fundamental repetition... | 06/27/2006 |
| 6947354 | Disk device having real-time and reliability recording modes with buffer memory divided into predetermined data stream areas A disk recording/reproduction device ideal for processing audio-visual data streams requiring real-time characteristics. A disk device has an operating mode ideal for recording and reproduction of motion image and audio data requiring real-time continuity by limitin... | 09/20/2005 |
| 6947912 | Method and arrangement for controlling a dynamic scale In a method and arrangement for controlling a dynamic scale, the conveying speed of a conveyor belt for items of mail in the dynamic operating mode is independent of the format of the pieces of mail. During dynamic weighing, a controller of the scale deactivates the... | 09/20/2005 |
| 6918083 | Tool for marking up electronic documents Enclosed is a tool that is used to review and/or alter electronic documents each of which may have a different format. The mark-up tool is provided with a color-coded scheme to highlight where an electronic document is to be changed and to indicate the status of the... | 07/12/2005 |
| 6917426 | Real-time wavefront sensor system The system includes a first polarizing element; an electro-optically driven birefringent element; a second polarizing element; an optical assembly; and, an optical-to-electronic imaging sensor assembly. The first polarizing element receives an incoming optical wavef... | 07/12/2005 |
| 6807138 | Light drive Typical apparatus according to this invention comprises a host interface for receiving digital data interface input from a host computer and delivering digital data interface output to the host computer, the interface output data comprising a function of the interfa... | 10/19/2004 |
| 6690636 | Preformatting optical recording medium A method for preformatting an optical recording medium with a plurality of parallel guide tracks, each guide track controlling the recording of a band of data tracks; said method includes providing a source laser beam along a predetermined path at a wavel... | 02/10/2004 |
| 6567364 | Multi-track disk reproducing apparatus and reproducing method thereof Spiral tracks are formed on a recording surface of an information disk such as an optical disk, and data is recorded by interleaving technique as well as adding error correction information. A disk driver rotates the information disk at a specified speed.... | 05/20/2003 |
| 6563784 | Multiple optical-recording apparatus using solid immersion lens The present invention relates to an optical data recording device using SIL (Solid Immersion Lens) in order to store information with high capacity, and more particularly to the multiple optical-recording apparatus capable of doing multiple information st... | 05/13/2003 |
| 6545968 | Generating a two dimensional array of modulated light beams by a holographic beam splitter An apparatus for generating a two dimensional array of modulated light beams. A laser and a collimator are used to generate a single collimated light beam. This collimated light beam is passed through a two dimensional holographic beam splitter. Thereupon... | 04/08/2003 |
| 6229771 | Method and apparatus for generating focus error signals in a multi-beam optical disk drive A focus detection system for use in a multi-beam optical pickup assembly is provided that uses an optical element, either a holographic element or diffractive element, to split beams reflected off of a data-bearing surface of an optical disk into a plural... | 05/08/2001 |
| 6151289 | Multibyte random access mass storage/memory system A multi-byte, random access, mass storage/memory system is capable of storing multigigabytes of information and communicating that information over various standard output channels at high transfer rates. The system includes drive, software and media comp... | 11/21/2000 |
| 6147951 | Recorded information reproduction method and recorded information reproduction apparatus with multiple reading elements A reproduction apparatus for reproducing data recorded on a disk having a plurality of tracks includes a spindle motor for rotating the disk, N reading components (N being a positive integer greater than one) for respectively producing N analog reading si... | 11/14/2000 |
| 6137763 | Method and apparatus for buffering data in a multi-beam optical disk reader Methods and apparatus are disclosed for buffering and reordering data blocks read simultaneously from multiple tracks of an optical disk, so that they may be delivered in sequential order to a host computer. The methods involve the use of numerous process... | 10/24/2000 |
| 6111831 | Methods and apparatus for simultaneously reading multiple tracks of an optical storage medium Methods and apparatus are provided for synchronously reading data from multiple tracks of an optical disk using multiple illumination beams. Circuitry is provided for use with a photodetector array to read and buffer data in parallel from the multiple adj... | 08/29/2000 |
| 6028827 | Methods and apparatus for synchronizing read out of data from multiple tracks of an optical storage device Methods and apparatus are provided for simultaneously reading data from multiple tracks of an optical disk at a high rate. Circuitry is provided for generating a reference data clock independently of spindle motor speed and the spindle motor speed servo c... | 02/22/2000 |
| 5978343 | Multiple track scanning method for optical pickup A method of scanning multiple tracks uses an optical pickup to simultaneously emit a plurality of beams on a plurality of tracks on a disk, and satisfies the equations: Nj =(Nb -1)Ng -1 and Nr =Nb N | 11/02/1999 |
| 5822292 | Multi beam track system and method for an optical memory A multi beam track system and method is used for the retrieving of information stored in optical memories like optical disks. The information carrying beams reflected on the surface of such a optical disk results in spots on the surface of a detector arra... | 10/13/1998 |
| 5808988 | Reproduction of optical information by one-beam optics with reduced crosstalk as recorded in multi-phases and multi-levels at staggered lattice points, and apparatus and recording medium therefor Learning marks are recorded in a learning region preceding a data recording region of the track. The positions of information recording lattice points are staggered by one lattice point between two contiguous tracks. At reading of recorded information, a ... | 09/15/1998 |
| 5493547 | Recording eight digital audio channels on a single magneto optical disk A method and apparatus for recording onto or playing back from a magneto optical disk eight channels of digital audio data. Eight channels of serial audio data, for example in a AES/EBU format is converted to parallel data and provided to one or more buff... | 02/20/1996 |
| 5398225 | Optical information recording/regenerating apparatus and track scanning method for an optical information recording/regenerating apparatus An optical information recording/regenerating apparatus includes an optical head for irradiating a regeneration light spot to a plurality of tracks on an optical recording medium simultaneously via an objective optical system. A regenerating arrangement i... | 03/14/1995 |
| 5321683 | Digital optical tape read system Method and apparatus for reading digital data stored on an optical tape are achieved with a digital optical tape read system including an optical tape and an illumination arrangement. The optical tape has bit cells which are stored along a plurality of tr... | 06/14/1994 |
| 5295126 | Information recording apparatus for recordable optical disc An information recording apparatus for receiving recording information and index information with respect to the recording information, and recording the recording information on a recordable disc medium, including memory device for storing the index info... | 03/15/1994 |
| 5111345 | Disk memory device A disk memory device is provided that will maximize the storage capacity of a memory disk while at the same time maximize the record and playback data rate. Two recording disks are mounted upon a common shaft that is rotated at a fixed speed. Each disk ha... | 05/05/1992 |
| 5109370 | Information reading device for information recording medium having track structure An optical pickup scans a target track and scans a track preceding to the target track to store respectively read information therefrom to read out information from a preceding track scanning signal corresponding to a jump portion when a track jump occurs... | 04/28/1992 |
| 4835762 | Optical memory device and system In the optical memory device of this invention, an annular information recording area is formed on one surface of a disc-shaped subplate which is rotatable about a center hole. Information is recorded on, or read from, the circular or spiral track of the ... | 05/30/1989 |
| 4371894 | Video disc transducer system and method A video disc record having a spiral video record track which can provide reproduced video signals with a desired frame rate such as thirty frames per second while the disc record is rotated at a very low speed such as two revolutions per minute. A preferr... | 02/01/1983 |
| 4353077 | Optical floppy disc data storage and retrieval techniques An optical floppy disc constructed of microfilm, thermoplastic or paper and bears digital and/or graphic information. Digital information may be stored in radial lines each of which comprises the digital information to be retrieved and line addresses at t... | 10/05/1982 |
| 4317131 | System and method for reproducing pictures and related audio information System, method and record medium for the reproduction of pictures and related audio information on a television receiver or monitor. Video information for discrete frames of the picture is recorded in spaced apart tracks on the record medium, and extended... | 02/23/1982 |
| 4193090 | Optical detection system for simultaneously interrogating a plurality of tracks The present invention relates in general to an optical video detection system for retrieving recorded information. More particularly, the invention relates to an optical detection system whereby optical means focus a laser beam into a reading spot of an a... | 03/11/1980 |
