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| Number | Title | Issue Date |
| 7894706 | Method of recording compressed image data multiplexed with additional information When data of image information is compressed and is recorded on a recording medium, additional information about the image information is recorded in a conveniently usable state. There is provided read/write unit information as a unit of reading and writing the comp... | 02/22/2011 |
| 7688687 | Timing extractor, and information playback apparatus and DVD device using the timing extractor In a feedforward timing extractor for extracting timing information from a playback signal, a frequency ratio calculation section 2 calculates the ratio between the frequency of the playback signal and the frequency of the output clock of a frequency synthesi... | 03/30/2010 |
| 7417925 | Method and apparatus for characterizing and improving optical drive performance A system and related methods for characterizing and improving optical drive read performance is presented. The system includes an innovative audio file stored on optical media (characterization file), and an optical drive characterization agent, implemented on a com... | 08/26/2008 |
| 7356248 | Apparatus and method of reproducing subtitle recorded in digital versatile disk player In an apparatus and method of reproducing a subtitle recorded in a digital versatile disk player including a subtitle processing section for receiving, storing and reproducing multilingual subtitles, as well as video data and audio data of multiple titles which are ... | 04/08/2008 |
| 7349302 | Optical disk recording apparatus and optical disk recording method For protecting the recording from shifting in the position, by conducting sync detection, correctly, from land pre pits, in an optical type recording disc, even if sync pattern errors, in more detail, synchronization is conducted on a recording circuit, with certain... | 03/25/2008 |
| 7343544 | Optical disk playback apparatus and data playback method therefor An optical disk playback apparatus for playing back or reproducing main data and its associated sub-code which are read from an optical recording medium comprises an interleave RAM for storing the main data. The optical disk playback apparatus performs a predefined ... | 03/11/2008 |
| 7313079 | Method and apparatus for header detection and protection A method of using an RF-sum signal and a plurality of detection signals to determine a property of at least one header and selecting one of a plurality of carrier regions is disclosed. The RF-sum signal and the plurality of detection signals are produced according t... | 12/25/2007 |
| 7292507 | Play control method in digital versatile disc player An optical disc player such as a digital versatile disc (DVD) player and a play control method thereof can include setting a reproduction mode for a disc loaded in the digital versatile disc player, storing the set reproduction mode, and reading out and reproducing ... | 11/06/2007 |
| 7274642 | Data recording medium, data recording method and apparatus, data reproducing method and apparatus, data transmitting method, and data receiving method A recording medium having at least a lead-in area, a data recording area to which data is recorded, and a lead-out area, wherein the data recording area comprises a first recording area portion to which data that has been encoded with an error correction code is rec... | 09/25/2007 |
| RE39811 | Musical information recording and reproducing technique for use with a recording medium having a UTOC area There is generated a rhythm corresponding to a designated tempo and meter of a music piece to be recorded. Performance of a musical instrument is started at specific timing according to the generated rhythm, and the musical information resulting from the performance... | 09/04/2007 |
| 7231731 | Information record medium having two phase pit areas of mutually different depths and groove track area On an information record medium (1), information is optically recorded and reproduced while a servo control is performed with respect to the information record medium by a push-pull method. The information record medium is provided with: a record/reproduction... | 06/19/2007 |
| 7228487 | Data buffering system and method for optical recording device The present invention is a data buffering system for buffering information from an optical recording medium into a buffer memory. The information comprises a main data and a subcode. The system comprises a main target comparator, a correction target comparator and a... | 06/05/2007 |
| 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 |
| 7154829 | Optimal recording method for optical recording media and optical recording medium stored with information about optimum recording conditions Disclosed is an optimal recording method for optical recording media which is capable of recording information about optimum recording conditions on an optical recording medium in order to allow a subsequent recording of data at an optimum recording power, based on ... | 12/26/2006 |
| 7141895 | Circuit arrangement comprising a power supply unit The circuit arrangement comprises a power supply unit with a first power supply only for the analogue signal processing part and for the control part of a respective device. For the digital signal processing part, a second, separate switched mode power supply is pro... | 11/28/2006 |
| 7130340 | Noise margin self-diagnostic receiver logic A noise margin self-diagnostic receiver circuit has been developed. The self-diagnostic circuit includes one comparator for comparing the signal voltage to a high reference voltage, a second comparator for comparing the signal voltage to a low reference voltage, and... | 10/31/2006 |
| 7110330 | Method of providing sub-code data of optical disc drive to host computer A sub-code providing method that provides correct sub-code data when sub-code data is requested from a host when a reproduction mode is performed in an optical disc drive. In a method providing sub-code data to a host computer in an optical disc drive formed so that... | 09/19/2006 |
| 7102972 | Method of recording drive information on optical disc and optical disc having drive information recorded using the method A method of recording drive information on an optical disc and an optical disc having drive information recorded using the method. The method of recording drive information comprises including a plurality of physical clusters in a drive region where disc drive infor... | 09/05/2006 |
| 7006416 | Record medium with mechanism of secrecy protection A record medium preventing a first drive device from reading data therefrom while allowing a second drive device to read the data therefrom wherein data-read operation is performed according to volume management information stored in the record medium, including a p... | 02/28/2006 |
| 6925044 | Recording control method for optical disk recording and reproducing apparatus When during the operation of recording a signal onto a disk the amount of signal data stored in a buffer RAM for temporarily storing a recording signal falls below an interruption set value, the recording operation on the disk is interrupted. Subsequently, when the ... | 08/02/2005 |
| 6643452 | Recorded medium, reproducing apparatus, recording apparatus, and reproducing method and recording method By packetizing main data to be recorded in a program area while providing each of the packets with a header (packet property) for managing the data length of individual packets, and further providing a management area (packet index) for batched management... | 11/04/2003 |
| 6639878 | Method and apparatus for characterizing and improving optical drive performance A system and related methods for characterizing and improving optical drive read performance is presented. The system includes an innovative audio file stored on optical media (characterization file), and an optical drive characterization agent, implement... | 10/28/2003 |
| 6519676 | Method for reading a CD having CD-text data To determine whether a record medium loaded on a drive has character information in a management area of the record medium corresponding to data received from the drive and to obtain the character information when the record medium has the character infor... | 02/11/2003 |
| 6452876 | Positioning system and apparatus including the positioning system Apparatus for reading and/or writing onto an information carrier includes the positioning system. The positioning system includes a drive member for moving a second part with respect to a first part and a fine-positioning member for moving a third part wi... | 09/17/2002 |
| 6400658 | DVD-RAM disk reproduction apparatus for reducing errors during detection of identification data A DVD-RAM disk reproduction apparatus for reducing an error during detection of ID data, which includes a first operational amplifier for obtaining a sum signal resulting from the addition of four picked-up signals picked up by divided-by-four photodiodes... | 06/04/2002 |
| 6339561 | Reproduction apparatus and method of displaying data in selected language The present invention is a reproducing apparatus that reproduces data from a record medium on which text information such as a title of a program is recorded in a plurality of languages and identifiers for identifying recorded languages are recorded as co... | 01/15/2002 |
| 6122239 | Pre-mastering, archival optical recorder that provides extended recording time A pre-mastering, optical recorder and a logging workstation both receive and condition an analog signal. Both the recorder and the workstation then digitize the conditioned signal storing the digitized data thus obtained in a buffer, preferably either a l... | 09/19/2000 |
| 6091683 | Data reproduction apparatus for disk medium A data reproduction apparatus for a disk medium is disclosed. The apparatus comprises a data reading section reading subcode data recorded on the disk medium and corresponding main data recorded therewith, a sub Q code acquisition section separating sub Q... | 07/18/2000 |
| 6064634 | Compact disc player capable of automatically generating a start command Disclosed is a compact disc apparatus having automatic start capabilities. The compact disc apparatus includes a digital signal processor for reading sectors that have a plurality of EFM frames, and the EFM frames contain at least a data component and a s... | 05/16/2000 |
| 6061308 | Optical disk reproducing apparatus and optical disk reproducing method capable of reproducing information recorded on head portion of each track An optical disk reproducing apparatus having a head time instant forming unit for forming head time instant data indicative of first index time information of tracks formed on an optical disk; a head time instant memory unit for storing the head time inst... | 05/09/2000 |
| 6058453 | Method and apparatus for subcode/data synchronization in a compact disc system A disc drive apparatus and a method for synchronizing information components read from a compact disc media are described. The method includes selecting a start minutes/seconds/frames MSF for a data component and triggering a transfer of the data componen... | 05/02/2000 |
| 5862108 | Method and apparatus for recording and reproducing language learning information on/from a compact disk A method and apparatus for reproducing language learning information data from a compact disk. On a compact disk, audio data is recorded separately on left and right channels of a general signal area of the compact disk. Sub-Q data, reproduction informati... | 01/19/1999 |
| 5859821 | Record medium with managed digest portions of programs, reproducing apparatus thereof, and reproducing method thereof According to the present invention, since a management region for managing record positions of impressive or feature portions (as digests) of programs recorded on a record medium is provided, an outline of the programs on the record medium can be obtained... | 01/12/1999 |
| 5771212 | Method and apparatus for recording and reproducing language learning information on/from a compact disk A method and apparatus for recording and reproducing language learning information from a compact disk. On a compact disk, audio data is recorded separately on left and right channels of a general signal area of the compact disk. Sub-Q data, reproduction ... | 06/23/1998 |
| 5745474 | Apparatus and method for reproducing data from disk, method for recording data on disk and disk An apparatus for reproducing data recorded on a disk (10) has a head part (12) for reading data from the disk, storage parts (17, 18) for storing the data read by the head part, and a control part (15) which pre-reads the data from the disk and stores the... | 04/28/1998 |
| 5737308 | Recording medium for specified reproduction and reproduction apparatus It is easy to reproduce a recorded information and, particularly, its portions on a disc, in a repeated fashion and the disc is convenient to learn. It is proved effective to perform reproduction, while picking up only a specified portion of a plurality o... | 04/07/1998 |
| 5691968 | Optical disk unit An optical disk unit wherein a disk rotating speed is automatically adjusted for reading optical information from various optical disk types, each optical disk type requiring a different rotating speed. The optical disk unit moves an optical head to a tra... | 11/25/1997 |
| 5648953 | Sub-que code data read circuit for compact disc reproduction apparartus A sub-que code (Q subcode) data read circuit for a compact disc reproduction apparatus is capable of converting sub-que code data of serial bits output from the compact disc-digital signal processor of a CD-ROM drive into parallel bytes and adjusting posi... | 07/15/1997 |
| 5602811 | Musical information recording and reproducing technique for use with a recording medium having a UTOC area There is generated a rhythm corresponding to a designated tempo and meter of a music piece to be recorded. Performance of a musical instrument is started at specific timing according to the generated rhythm, and the musical information resulting from the ... | 02/11/1997 |
| 5587979 | Information carrier having information packets containing coded text or image information relating to different categories, arrangement for reading such information carrier and a system including such arrangement and information carrier A system for transferring audio and/or video information via an information carrier, e.g., DAT, CD or CDV. In the R-W subcode channels of a CD-signal, textual or visual information about the audio and/or video signal is recorded. This information is divid... | 12/24/1996 |
