Did You Know...
...that the x-ray was discovered purely by accident? When German physicist Wilhelm Konrad von Roentgen was experimenting with cathode rays in 1895, he put an activated Crookes tube in a book and went out to lunch. When he returned, he discovered that a key that had also been placed in the book showed up as an image on the developed film!
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| Number | Title | Issue Date |
| 8139452 | Record carrier comprising an additional sync-color pattern and method and device for use with such record carrier The invention relates to a format for storing information on an optical recording medium. According to said format the record carrier comprises a synchronization pattern, which synchronization pattern comprises an identifying part consisting of a bit sequence chosen... | 03/20/2012 |
| 8107333 | Coding for optical storage systems with multiple reader heads and multiple optical disks Provided are methods and systems of encoding and decoding techniques in an optical storage system having a multi-head detector. In one embodiment, source data may be encoded using error correction coding (e.g., turbo coding) techniques, and the encoded data may be i... | 01/31/2012 |
| 7876652 | Disc recording medium, disc drive apparatus, and reproduction method First data representing user data and third data use the same error correction codes. The first data has a first error correction block structure and the third data has a second error correction block structure. That is to say, the first data and the third data have... | 01/25/2011 |
| 7821888 | Optical disk reproducing apparatus with a disk identifying function An optical disk reproducing apparatus has a circuit for detecting a difference in modulation scheme between two types of optical disks in a reproduction signal and a circuit for determining the modulation schemes of the disks on the basis of the difference. Thus the... | 10/26/2010 |
| 7515512 | Optical disc recording and reproduction apparatus An optical disc recording and reproducing apparatus for recording and reproducing data in and from an optical disc by the use of the optical disc as a recording medium, comprises analog processing means including a binarization unit for subjecting a signal read from... | 04/07/2009 |
| 7508741 | Optical disc recording and reproduction apparatus having automatic gate signal generation modes An optical disc recording and reproducing apparatus for recording and reproducing data in and from an optical disc by the use of the optical disc as a recording medium, comprises analog processing means including a binarization unit for subjecting a signal read from... | 03/24/2009 |
| 7433288 | Recording device and method, recording medium and program High bit-rate data and low bit-rate data for the same material are recorded in time division. Meanwhile, the recorded low bit-rate data is read out so as to be used for verification or time-shift playback. In a time-shift playback process, a plurality of tags, each ... | 10/07/2008 |
| 7408851 | Pseudo multi-channel play-back apparatus Compressed audio data for 5.1 channels stored in the DVD-ROM 11A is read by the AC-3 decoder 12 of a pseudo multi-channel stereo play-back apparatus and, after expansion, stored temporarily in a buffer 13, channel by channel. Among stored audio ... | 08/05/2008 |
| 7397748 | Optical recording medium, recording method and apparatus for optical recording medium and reproducing method and apparatus An optical recording medium having a track including plural pits formed based on first data and lands defined between neighboring pits, these pits are deformed as they are recorded based on second data. The first and second data are synthesized and reproduced to rea... | 07/08/2008 |
| 7360145 | Information storage medium on which drive data is recorded, and method of recording information on the information storage medium An information storage medium includes a drive zone having a plurality of physical clusters or ECC blocks. When new drive data is recorded in the drive zone, the new drive data is recorded in a physical cluster or ECC block next to the physical cluster or ECC block ... | 04/15/2008 |
| 7355936 | Disc recording medium, disc drive apparatus, and reproduction method First data representing user data and third data use the same error correction codes. The first data has a first error correction block structure and the third data has a second error correction block structure. That is to say, the first data and the third data have... | 04/08/2008 |
| 7349304 | Information storage medium evaluation method, information storage medium evaluation apparatus, information storage medium, information reproduction apparatus, information reproduction method, and information recording method An information storage medium according to an aspect of this invention has an information storage area for storing information, and a wobbled track which is used to guide a light beam on the information storage area, and is wobbled in correspondence with a frequency... | 03/25/2008 |
| 7339862 | Optical disc driving system and method for determining rotation speed of optical disc A novel optical disc driving system and method for determining the rotation speed of an optical disc are provided, which allow to determine the highest rotation speed optimal for reading out audio and video data in the optical disc in accordance with the environment... | 03/04/2008 |
| 7321531 | Apparatus for reproducing data from optical storage medium using multiple detector An apparatus includes a multiple detecting unit having n detectors, and a controller which selects one of the n detectors and controls the selected detector to output a binary signal. In the apparatus, a plurality of detectors are used to detect a signal read from a... | 01/22/2008 |
| 7317674 | Optical pick-up units and laser drivers with increased functionality Optical pick-up units and laser drivers are disclosed, which can be used in various types of information recording/reproducing apparatuses, such as, but not limited to, DVD and CD drives, DVD camcorders, and DVD video recorders. A laser driver integrated circuit (LD... | 01/08/2008 |
| 7317671 | Apparatus and method for compensating for tilt An apparatus and a method of playing an optical recording medium, including a method of compensating for a tilt by a real time tilt detection before and during a playing operation of the optical recording medium. A tilt compensating apparatus includes an optical pic... | 01/08/2008 |
| 7310292 | Optical disk reproducing device that demodulates digital data by switching between a channel bit frequency and a frequency that is half of the channel bit frequency A data demodulation process rate is varied according to a reproduction state, thereby reducing power consumption while maintaining a reading performance in a favorable state. A channel rate process data demodulation device performs a data demodulation process by emp... | 12/18/2007 |
| 7287211 | Data readout device and data readout method A data readout device generates decoded data based on a data bit determined by performing a hard-decision on likelihood data. The likelihood data is generated using an iterative decoding method corresponding to a turbo-coding process. The decoding process is perform... | 10/23/2007 |
| 7284183 | Method and apparatus for decoding multiword information A method for decoding multiword information comprises steps (a) to (h). In step (a), a multiword information cluster including high protective words and low protective words is provided, wherein the multiword information, high protective words and low protective wor... | 10/16/2007 |
| 7281193 | Method and apparatus for decoding multiword information A method for decoding multiword information comprises multiple steps. In step (a), a multiword information cluster, e.g., ECC, including high protective codewords, e.g., BIS, and low protective codewords, e.g., LDC, is provided. In step (b), the high and low protect... | 10/09/2007 |
| 7262929 | Setting the rotation speed of a rotating disk memory The invention relates to a device comprising a disk drive 1 for rotating a disk memory and at least one interface enabling a data flow between a rotating disk memory and at least one other module 10, 12. In order to enable a comfortable use of such a d... | 08/28/2007 |
| 7260045 | Signal encoding apparatus, signal decoding apparatus, player, and digital signal recording medium having area storing audio title set including data representative of digital audio signal A digital signal recording disc has a first area storing an audio title set. The audio title set has data representing audio information and data representing a still picture. The audio title set is void of a pack of data for playback control. The first area also st... | 08/21/2007 |
| 7260036 | Data processor used in a plurality of optical disk recording mediums A data processor compatible for use with a CD and a DVD includes a first modulation circuit for modulating recording data for recording on a CD to generate first modulated data. A second modulation circuit modulates recording data for recording on a DVD to generate ... | 08/21/2007 |
| 7254100 | Optical disk reproducing device selectively using a channel bit frequency or a frequency that is half of the channel bit frequency A data demodulation process rate is varied according to a reproduction state, thereby reducing power consumption while maintaining a reading performance in a favorable state. A channel rate process data demodulation device performs a data demodulation process by emp... | 08/07/2007 |
| 7242654 | Data recording medium, data recording method and apparatus and data reproducing method and apparatus A data recording medium has plural recording areas. The recording medium includes a first recording area for recording data allocated with address data, a second recording area for recording data having allocated address data different from the address data allocate... | 07/10/2007 |
| 7242653 | Optical disc apparatus capable of detecting recording characteristics based on a predetermined signal prerecorded and reproduced An optical disk drive apparatus for recording a predetermined signal on an optical disk by varying predetermined recording conditions and detecting recording characteristics based on a reproduction signal of the predetermined signal is provided. The optical disk dri... | 07/10/2007 |
| 7212476 | Optical disc reproducing device selectively using a channel bit frequency or a frequency that is half of the channel bit frequency A data demodulation process rate is varied according to a reproduction state, thereby reducing power consumption while maintaining a reading performance in a favorable state. A channel rate process data demodulation device performs a data demodulation process by emp... | 05/01/2007 |
| 7203142 | Multi-source surround audio apparatus A DVD audio signal reproducer reproduces a DVD to generate a DVD reproduced audio signal. A reproduced signal determiner determines whether the DVD reproduced audio signal is a 5.1-channel digital surround audio signal or a 2-channel digital audio signal, and genera... | 04/10/2007 |
| 7196985 | Apparatus and method for manufacturing optical disks, apparatus and method for recording data on optical disks, apparatus and method for reproducing data from optical disks, and optical disk formed with pit strings and mark strings Described herewith is an optical disk manufacturing apparatus for reading recorded digital data from an optical disk, comprising an encryption unit (22, 23) for encrypting entered digital data according to a plurality of key information; an optical disk subst... | 03/27/2007 |
| 7193939 | Optical disk recording apparatus, method, manufacturing apparatus and information processing device including binary number series generating unit features regarding an address on an optical disk Described herewith is an optical disk manufacturing apparatus for reading recorded digital data from an optical disk, comprising an encryption unit (22, 23) for encrypting entered digital data according to a plurality of key information; an optical disk subst... | 03/20/2007 |
| 7190655 | Disk recording medium, disk manufacturing method, and disk drive apparatus A disk recording medium which can implement a recording method having a high degree of reliability for additional information is disclosed. The disk recording medium has a recording and reproduction region into and from which first data can be recorded and reproduce... | 03/13/2007 |
| 7177247 | Optical disc recording control method, drive, and recording system According to an optical disc recording control method, a drive, and a recording system of the present invention, in a drive of an optical disc, when data transfer from a host computer is interrupted while data transmitted from the host computer is being recorded in ... | 02/13/2007 |
| 7171156 | Method and apparatus for transmitting audio and non-audio information with error correction A method and an apparatus for providing digital quality transmission of audio and non-audio information using low cost components and arrangement. The present invention provides for the transmission of the audio and non-audio transmission by first converting the dat... | 01/30/2007 |
| 7167108 | Method and apparatus for selecting particular decoder based on bitstream format detection The present invention provides an apparatus and method for switching between particular decoders within a plurality of decoders, each decoder adapted to decode bit streams having a unique format. The apparatus comprises format detectors which output format indicator... | 01/23/2007 |
| 7149164 | Optical disc apparatus for processing data according to different optical disc standards to achieve higher recording density An optical disc apparatus which realizes high density disc recording using an existing disc and an existing recording signal processor. When recording data on a recordable disc corresponding to an existing first standard, either one of first and second recording sig... | 12/12/2006 |
| 7130252 | Optical recording medium having multiple reproduction modes The present invention provides a recording medium. First data is recorded in the medium, in the form of a track consisting of a plurality of bits. Second data is recorded in the form of a plurality of bits that are displaced in the direction at right angles to the t... | 10/31/2006 |
| 7126891 | Apparatus and method for manufacturing optical disks, apparatus and method for recording data on optical disks, apparatus and method for reproducing data from optical disks, and optical disk formed with pit strings and mark strings Described herewith is an optical disk manufacturing apparatus for reading recorded digital data from an optical disk, comprising an encryption unit (22, 23) for encrypting entered digital data according to a plurality of key information; an optical disk subst... | 10/24/2006 |
| 7113456 | Method and apparatus for playing back a multisession disc A method and apparatus for reading multisession discs in which both standard CD-DA format and compressed music formats, such as MP3, may be utilized on the same disc. High speed reading of data into shock proof memory, analysis of available memory and storage of ana... | 09/26/2006 |
| 7106674 | Reproduction apparatus In a multi-session disc including both audio session and data session, the data session is correctly recognized and accessed. The reproducing apparatus is a reproducing apparatus of a multi-session disc mixing a session of first type recording first data and a sessi... | 09/12/2006 |
| 7099248 | Method of changing a rotating mode between constant angular velocity and constant linear velocity The present invention relates to a method of changing a recording mode from CAV (Constant Angular Velocity) mode to CLV (Constant Linear Velocity) mode in the middle of recording data to a disk recording medium. A method according to the present invention reads ATIP... | 08/29/2006 |
