Bizarre Patents
Cloaking System Using Optoelectronically Controlled Camouflage
A Cloaking System designed to operate in the visible light spectrum, utilizes optoelectronics and/or photonic components to conceal an object within it.
PatentStorm News
Make the Most of Our Site
See this month's Top Inventors and Most Cited Patents.
Stay on top of the latest innovations by subscribing to an RSS feed.
Registered users: Manage your profile.
| Number | Title | Issue Date |
| 7826319 | Optical disc record medium, disc production method, recording apparatus A guide groove is formed without wobbles. The guide groove is periodically modulated with its width. Encrypted data are recorded with marks formed on the record film along the guide groove. Information recorded by periodically modulating the guide groove with its wi... | 11/02/2010 |
| 7369625 | Apparatus and method for slicing RF signal and compensating for the slice level of RF signal in disk drive An apparatus and method for slicing an RF signal and compensating for the slice level of an RF signal reproduced from a disk, which minimizes a block error rate by optimizing the slice level of the RF signal according to variations in symmetry of the RF signal when ... | 05/06/2008 |
| 7355939 | System and method for switching control modes of spindle motor A system and method of switching the control modes of spindle motor are described. The switch system comprises a first control module, a second control module and a switch controller. The first control module electrically coupled to the spindle motor and the OPU con... | 04/08/2008 |
| 7327648 | Player with rotational control for double-sided optical discs A double-sided optical disc, such as a DVD-18 disc, is formed with data tracks on each layer. The tracks on one side are oriented along one spiral while the tracks on the other side are oriented along a different spiral, the two spirals being oriented in opposite di... | 02/05/2008 |
| 7317678 | Optical disc, optical disc recording/reproducing apparatus, and optical disc recording/reproducing method In an optical disc in/from which data is recorded or reproduced by irradiating a storage area on the optical disc with a laser, information containing recording velocity information (RVI) for recording/reproduction, which represents a linear velocity different from ... | 01/08/2008 |
| 7315968 | Phase error determination method and digital phase-locked loop system In a digital PLL system, instead of measuring a binarized playback RF signal with a high frequency clock, pulse-length data is generated by using N phase clocks (for example, 16 phase clocks). The pulse-length data is then counted with a virtual channel clock so as ... | 01/01/2008 |
| 7301867 | Method and apparatus for changing a recording speed of a disk device The present invention relates to a recording speed determining method of a disk device. The present method, when data record is requested from a host through an interface, a disk device can receive size information about data to be recorded and/or the present time f... | 11/27/2007 |
| 7301873 | Information recording medium, information recording device and method therefor, and computer program product and storage medium therefor On a recording medium, the version information indicating a version of the recording standard to which the information recording medium is adapted is recorded. Moreover, the normal recording condition information for recording information at a normal recording speed... | 11/27/2007 |
| 7242658 | Apparatus to generate a bit clock and a method of generating the bit clock An apparatus and a method to accurately generate a bit clock synchronized with digital data. The apparatus includes an edge detecting unit, a first edge counter, a second edge counter, a first counter, and a bit clock generating unit. The edge detecting unit detects... | 07/10/2007 |
| 7209424 | Controller device with switchable characteristic A controller (30) is capable of operating in two possible operative modes, each mode having a corresponding characteristic (11; 12). Said characteristics have an overlap in a range of error signal values [TLL–TN]. The controller is capable of switchi... | 04/24/2007 |
| 7210078 | Error bit method and circuitry for oscillation-based characterization A method for evaluating an output of a sequential circuit 2 by storing a series of output pulses from the sequential circuit 2 and determining whether the output pulses 4 toggled as desired. Also a circuit 1 for evaluating an output 4 | 04/24/2007 |
| 7164635 | Method of estimation parameter adaptability adjustment of an optical storage device A method of estimation parameter adaptability adjustment of an optical storage device. The method determines an estimation parameter according to a current data recording location of the optical storage device to estimate a channel bit rate. The method includes prov... | 01/16/2007 |
| 7130253 | Disk DVD-ROM drive unit with a playback speed control and disk drive method A disk drive unit for reproducing information recorded on a digital versatile disk (DVD). The disk drive unit has a copyright management information reading unit for reading copyright management information from a predetermined location on a DVD loaded into the disk... | 10/31/2006 |
| 7095681 | Apparatus and method for detecting wobble signal read from optical disc An apparatus and method for detecting a wobble signal read from an optical disc. The wobble signal detection apparatus comprises an analog/digital (A/D) converter for A/D-converting an analog wobble signal, read from the optical disc and then band pass filtered, a s... | 08/22/2006 |
| 7088542 | Computer system and method to control noise of a hard disk drive A computer system including a computer main body provided with a hard disk drive (HDD) to retrieve/store data and an HDD driver to drive the hard disk drive to rotate at a predetermined rotational speed, further including a lower noise mode selection part allowing a... | 08/08/2006 |
| 7088667 | Optical disc, optical disc recording/reproducing apparatus, and optical disc recording/reproducing method In an optical disc in/from which data is recorded or reproduced by irradiating a storage area on the optical disc with a laser, information containing recording velocity information (RVI) for recording/reproduction, which represents a linear velocity different from ... | 08/08/2006 |
| 7054238 | Signal shaping circuit The present invention relates to a signal shaping circuit which is capable of shaping a returning light signal of a modulated signal whose signal level and signal length are arbitrarily varied such that it can be demodulated. The shaped signal pattern generation cir... | 05/30/2006 |
| 7038997 | Optical disk with prerecorded control information An optical disk has a central axis and a major face extending in a radial direction from the central axis. The optical disk is rotatable around the central axis at an angular velocity and is formed with a recording layer on the major face. The recording layer is opt... | 05/02/2006 |
| 7031240 | Disc drive device A disc drive device optimally controls a speed for reading RTR-format data, such as video and audio, recorded on a DVD-format disc, thereby enabling real-time playback without interruption. In the disc drive device, information added to each sector is used for deter... | 04/18/2006 |
| 6958966 | Control device for optical disk player that corrects rotational frequency data based on input data An optical disc player having an optical pickup records and retrieves information on an optical disc while the optical disc is rotating. A rotation pulse is generated each time the optical disc rotates through a prescribed angle. A rotation frequency data representi... | 10/25/2005 |
| 6952386 | Disc speed control device A disc speed control device for use in a disc player and/or recorder having a pick-up for reading/recording data. The device comprises an inner loop which regulates a determined disc rotation speed value received at its input and an outer loop which delivers this sp... | 10/04/2005 |
| 6947365 | Method for protecting phase lock loop in optical system A method for protecting a phase lock loop (PLL) in an optical system is disclosed. The disclosed method will determine whether the currently reading data is erroneous and then maintain the frequency currently locked by the PLL circuit when the waveform lengths of th... | 09/20/2005 |
| 6917577 | Method for determining position of optic pick-up head and device of the same A method for determining the position of an optic pick-up head and the device of the same are disclosed. The number of frames in certain section of the disk are used to determine the position of the optic pick-up head. The number of frames in inner section of the co... | 07/12/2005 |
| 6908725 | Double-sided hybrid optical disk with surface topology An optical disk has a multi-layer tuned optical coating overlying both small bumps to store pre-recorded information and lands onto which information is written to and read. The optical coating includes a phase-change metal/alloy layer formed over the disk substrate... | 06/21/2005 |
| 6850478 | Optical disk medium and optical disk indentification method and optical disk device The reproduction-only disk medium of the present invention includes preformed first information, in which the first information is formed in the same format as second information recorded on a prescribed recordable disk medium; and a direction along which the first ... | 02/01/2005 |
| 6751185 | Optical disc and apparatus for scanning the optical disc An optical disc is described for recording data, which disc has a recording area subdivided in coaxial annular zones comprising circular or spiral tracks. Each track within one of the zones is arranged for storing a same predetermined amount of data, and the first t... | 06/15/2004 |
| 6747927 | Disc drive device Provided is a disc drive device that optimally controls a speed for reading RTR-format data, such as video and audio, recorded on a DVD-format disc, thereby enabling real-time playback without interruption. In the disc drive device, information added to each sector ... | 06/08/2004 |
| 6721250 | Disc reproducing apparatus and disc reproducing method The present invention includes a playback means for playing back data on a disk; an audio output unit for outputting audio data as an audio signal to the outside when the audio data is played back by the playback unit; an audio level manipulation unit for manipulati... | 04/13/2004 |
| 6674699 | Method for identifying a reserved data area, and corresponding apparatus The present invention relates to a method for identifying a data area D,E or D,G, reserved in accordance with a first specification, as useful data area G in accordance with a second specification. Compatibility between first specification and second spec... | 01/06/2004 |
| 6538967 | Method and apparatus for controlling a reproduction speed of an optical disk This invention provides method and apparatus for controlling a reproduction speed of an optical disk, which detects the condition of an optical disk and changes the reproduction speed automatically to a pre-determined speed corresponding to the detected d... | 03/25/2003 |
| 6526011 | Apparatus and method for controlling velocity of spindle motor in optical disk reproducing system A control apparatus and method for controlling a velocity of a spindle motor included in an optical disk reproducing system to prevent a forward or backward overrun of a spindle motor are disclosed. A widest signal detector of the apparatus detects the wi... | 02/25/2003 |
| 6246650 | Method and apparatus for high speed data reproduction An information reproducing apparatus is disclosed that comprises measuring means for measuring the intensity of a jitter of a signal read from an information record medium such as a disc, storing means for temporarily storing reproduced information at a f... | 06/12/2001 |
| 6185172 | Rotation control apparatus, reproduction apparatus to which rotation control apparatus is applied, and rotation control method A rotation control apparatus which does not rely upon a drop of a signal is provided. A lower limit frequency and an upper limit frequency calculated based on generation patterns of run length limited codes which may possibly be generated stochastically a... | 02/06/2001 |
| 6130871 | Optical disk apparatus and optical disk An optical disk apparatus comprising an optical disk on which pits corresponding to data bits are arranged in a track tangential direction, a motor drive unit for rotating the optical disk, and a reproducing unit for reproducing the pits, wherein the leng... | 10/10/2000 |
| 5982726 | Multi-rate optical disc recording and reproducing apparatus Multi-rate optical disc recording method and apparatus wherein data are recorded on the optical disc in accordance with a transfer rate of data, thereby preventing an unnecessary waste of a storage area in the optical disc and also enhancing a recording t... | 11/09/1999 |
| 5974012 | Recording/reproducing apparatus and recording medium rotation control method An error voltage which includes serious fluctuation due to noise is applied to a LPF, and high frequency component due to noise is removed. The error voltage supplied through the LPF and a reference level, for example, 0-level voltage are supplied to a co... | 10/26/1999 |
| 5923628 | Disk rotational velocity controlling circuit In a disk rotational velocity controlling circuit, an edge detection circuit 1 comprises a rising edge detector and a falling edge detector for detecting a rising edge and a falling edge of an EFM signal E, independently of each other. A synchronous patte... | 07/13/1999 |
| 5920531 | Optical disk drive apparatus and linear velocity calculating method therefor An apparatus for reproducing data from the optical disk at a constant linear velocity includes a specified rotation speed detection module which decides whether or not the optical disk is rotating at a specified rotation speed. A linear velocity calculati... | 07/06/1999 |
| 5825732 | Rotation control circuit based on the mean value of run length code generation patterns reproducing apparatus equipped with the rotation control circuit Disclosed are a rotation servo circuit and a reproducing apparatus equipped therewith. In the rotation servo circuit, the average value of an inversion probability pattern of a run length code recorded on a recording medium is calculated in advance and, o... | 10/20/1998 |
| 5796691 | Spindle servo system for adjusting rotational speed in optical disk player A spindle servo system roughly adjusts a rotational speed of a spindle motor for rotationally driving an optical disk at a specified speed in an optical disk player for reproducing digital data composed of run length limited codes and synchronizing signal... | 08/18/1998 |
