Did You Know...
...that when IBM conducted a market study of Chester Carlson's invention in 1959, the company concluded that it would take only 5000 units of his new product to saturate the market? IBM therefore declined to be part of the new product introduction. Too bad for IBM. Carlson's invention was the xerography process, and his new product was the beginning of the Xerox Corporation. It is estimated that every day, worldwide, 3,000,000,000 copies are made!!
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| Number | Title | Issue Date |
| 8149668 | Optical disk drive and method for determining disk type A method of determining a disk type of an optical disk is provided to comprise steps of: using a first light path for forming an incident beam; moving an objective lens system corresponding to the first light path from a start position towards the optical disk; rece... | 04/03/2012 |
| 8149667 | Optical recording medium having read-only storage area and writable storage area and recording/reproducing apparatus and method therefor An optical recording medium having a read-only storage area and a writable storage area and a recording/reproducing apparatus and method therefor. The optical recording medium is a hybrid disc having both the read-only storage area, which is suitable for mass produc... | 04/03/2012 |
| 8085636 | Recording medium, method for recording control information in the recording medium, and method and apparatus for recording/reproducing data in/from the recording medium using the same A recording medium, a method for recording control information in the recording medium, and a method and apparatus for recording/reproducing data in/from the recording medium using the same are disclosed. The recording medium includes a data area, and a management a... | 12/27/2011 |
| 8081549 | Information recording and reproducing apparatus and a method of controlling an information recording and reproducing apparatus An information recording and reproducing apparatus records data on and reproduces data from each of a plurality of recording layers of a recording medium. A controller (7) controls a formatting process to format the recording medium (1) by performing a... | 12/20/2011 |
| 8036080 | Method and apparatus of discriminating different types of optical discs A method for discriminating different types of optical discs includes the steps of focusing a beam spot generated by a laser source on an optical disc, and rotating the optical disc; generating a radio frequency signal and a corresponding first signal of the radio f... | 10/11/2011 |
| 8004944 | Method of setting recording setup information about optical disk, program therefor, and data recording player There is disclosed a method of permitting recording setup information required to perform a test recording on an optical disk to be obtained from an external device as the need arises. The method comprises the steps of: measuring an evaluation index associated with ... | 08/23/2011 |
| 8000196 | Composite reproducing apparatus An optical disc reproducing device that composes a composite reproducing apparatus in accordance with the present invention includes an optical disc detecting portion which detects inserting and ejecting of an optical disc. The optical disc reproducing device also i... | 08/16/2011 |
| 7990826 | Recording medium type discrimination apparatus, recording apparatus, and discrimination method According to the present invention, light is emitted by a light source at different emission intensities, and sensor output values are compared with threshold values at the individual emission intensities, so that the types of recording media having various reflecti... | 08/02/2011 |
| 7983130 | Optical disk device and optical disk processing system having optical disk device An optical disk processing system having a recording unit and a printing unit is provided. An optical disk processing system comprises a printing unit and a recording unit. An optical disk is driven with a low torque and then with a high torque. Based on reaching ti... | 07/19/2011 |
| 7961576 | Optical disc discriminating method and optical disc apparatus A detection signal is asserted when a surface of an optical disc or an information recording layer is detected. An asserting (masking) time interval of the detection signal is set such that the number of times of asserting the detection signal becomes at most two ti... | 06/14/2011 |
| 7936653 | Information processing device, access device, recording medium, information processing method, and information processing program An information processing device is a device for processing specific information recorded to a recording medium, and has a characteristic identification unit and a processing unit. The characteristic identification unit identifies the reflection characteristic of th... | 05/03/2011 |
| 7936654 | Optical disk device An optical disk device includes an optical pickup, a focus drive section, a detection section, a time measurement section and a disk identification section. The detection section detects reflected light reflected from an optical disk while the focus drive section mo... | 05/03/2011 |
| 7924673 | Information processing device, access device, recording medium, information processing method, and information processing program An information processing device processes specific information recorded on a recording medium, and has a characteristic identification unit and a processing unit. The characteristic identification unit identifies the reflection characteristic of the recording mediu... | 04/12/2011 |
| 7916596 | Optical disc device, control method thereof, and computer-readable recording medium Provided is an optical disc device for reading a signal recorded on an optical disc medium, which detects surface reflection at a surface of the optical disc medium, a fake signal generated based on the surface reflection, and light reflected by a data recording lay... | 03/29/2011 |
| 7911907 | Optical disc judgment method and optical disc device An optical disk apparatus according to the present invention is an optical disk apparatus for performing at least one of: recording data to a plurality of types of optical disks including a recordable optical disk and a read-only optical disk which are produced acco... | 03/22/2011 |
| 7911908 | Optical head and data processing apparatus including the same An optical data processing apparatus reads and/or writes data from/on a data storage medium, in which first and second data storage layer are stacked. The apparatus includes: a light detector including at least one photodetector for generating a light quantity signa... | 03/22/2011 |
| 7869323 | Optical disc media type confirmation method The present invention relates to a method for preventing a problem of collision between an optical system and a media by suggesting a method for confirming the kind of the medium prior to its operation in a drive having a compatibility with respect to a method for s... | 01/11/2011 |
| 7869322 | Optical disc device and disc reproducing method The first layer (DVD layer) is first reproduced using the red layer light. Thereafter, search for the second layer (HDDVD layer) is performed with the blue laser light in accordance with the reproducing operation being temporarily interrupted for menu display (displ... | 01/11/2011 |
| 7852726 | Recording apparatus and recording medium, and computer program A recording apparatus includes: a recording device for recording data onto each of a plurality of types of recording media by irradiating a light beam corresponding to each of the types of recording media; a diffracting device disposed on an optical path of the ligh... | 12/14/2010 |
| 7848198 | Information processing device, access device, recording medium, information processing method, and information processing program An information processing device for processing specific information recorded to a recording medium that has a characteristic identification unit and a processing unit. The characteristic identification unit identifies the reflection characteristic of the recording ... | 12/07/2010 |
| 7813245 | Optical disk image forming device, optical disk image forming method and optical disk When an image is formed on an optical disk, an optical disk image forming device reads information written in an information area of the optical disk. When a reflection preventing process is applied to an image forming area of the optical disk, the optical disk imag... | 10/12/2010 |
| 7808869 | Information recording apparatus, information recording method, information playback apparatus, and information playback method According to one embodiment, an information recording apparatus which records content compliant with a second DVD standard on an information storage medium, the second DVD standard being a DVD standard later than a first DVD standard defined for a first image qualit... | 10/05/2010 |
| 7808868 | Method for determining disk type A method for determining a disk type is provided. In the invention, a pickup head of a DVD optical drive is moved to a blank area of the disk where no data is stored. After rotation of the disk is stopped, the blank area is irradiated with a laser beam, and reflecti... | 10/05/2010 |
| 7804751 | Method of distinguishing optical recording medium and apparatus of the same One inventive aspect relates to a method which easily distinguishes copycat products that are difficult to distinguish by identifying only a media ID. A media ID and other attribute data are read out of a reference optical recording medium, and then a media ID and o... | 09/28/2010 |
| 7787341 | Optical disk device and method for determining disk type An optical disk device includes a pickup head, and a controller which controls the pickup head. The controller subtracting a second measured value determined from an amplitude value of the tracking error signal when the pickup head irradiates a second area of the op... | 08/31/2010 |
| 7782727 | Optical disk processing apparatus An optical pickup is opposed to an inner-radius portion of an optical disc that is set, and pits (a modulation signal) are read by applying laser light for a DVD to the inner-radius portion. The read-out modulation signal is decoded by inputting it to a CD decoder. ... | 08/24/2010 |
| 7746747 | Optical recording medium drive apparatus and method of determining the number of layers In an optical recording medium drive apparatus, an optical recording medium is illuminated with a laser beam emitted from a head via an objected leans, and the head detects light reflected from the optical recording medium being illuminated with the laser beam. A si... | 06/29/2010 |
| 7724623 | Reading method of optical disc drive for reading disc and finding if disc is placed reversely A reading method for finding if a disc is placed reversely used in an optical disc drive is provided. The optical disc drive has a spindle motor, an optical pickup head having a lens, a fine actuator and a sled actuator. Firstly, a disc is placed into the optical di... | 05/25/2010 |
| 7693020 | Optical disk device, and focused layer discriminating method of optical disk An optical disk device includes: an objective lens for focusing an optical beam on a recording layer of an optical disk; a converging lens for converging the reflected optical beam reflected on the recording layer; first and second light receiving units disposed at ... | 04/06/2010 |
| 7660221 | Optical disk differentiating method and electronic device thereof An optical disk differentiating method applied to an optical disk drive, in which a first level value, a second level value and an optical disk differentiating value generating program are stored and an optical disk is put. The method comprises the steps of: generat... | 02/09/2010 |
| 7646689 | Disk discriminating method and disk discriminating apparatus To discriminate a disk in a short time, a calculating part 16 measures an amplitude of one of a focus error signal and a tracking error signal, which are output from a differential signal generating part 15, several times, and outputs the measured ampl... | 01/12/2010 |
| 7646690 | Disk having unique code for identifying its type for optical disk player and method for discriminating types thereof A BCA (Burst Cutting Area) code including a unique disk code indicating the type of a disk is written in a BCA code area of the disk. If the disk is mounted into the optical disk player, the optical disk player reads data written in the BCA code area, extracts the d... | 01/12/2010 |
| 7643394 | Optical disk, optical disk recording method, and optical disk recording apparatus In an optical disk recording method of recording data onto a recordable optical disk which includes a data zone where data is recorded and a management data zone where management data indicating the recorded part of the data zone is recorded, an extended management ... | 01/05/2010 |
| 7636285 | Method and apparatus for inspecting optical disc Reflected light caused by reflection of a laser beam at a first layer of an optical disc is converted into a main signal. Reflected light caused by reflection of the laser beam at a second layer of the optical disc is converted into a sub signal. An address of a cur... | 12/22/2009 |
| 7626907 | Method and apparatus for determining type of digital versatile disc A method and an apparatus for determining types of digital versatile discs (DVDs) are provided. The method includes setting related parameters, acquiring a wobble signal from a DVD, setting a frequency dividing factor, and dividing the frequency of the wobble signal... | 12/01/2009 |
| 7623430 | High-density multi-layer optical disc and method for managing layer formatting thereof A high-density multi-layer optical disc and a method for managing layer formatting thereof. A high-density multi-layer optical disc such as a Blu-ray disc rewritable (BD-RE) dual layer includes management information, additionally recorded in a lead-in area, needed ... | 11/24/2009 |
| 7616545 | Recording medium, recording apparatus, and reading apparatus In a recording medium, the physical characteristic information of the recording medium, and more specifically, the configuration (shape and size) and the moment of inertia of the disc, is recorded. This enables a recording apparatus or a reading apparatus to easily ... | 11/10/2009 |
| 7613091 | Method for identifying double-layer disc and optical disc apparatus The object of the present invention is to enable the identification of double-layer disc type (recordable double-layer disc, rewritable double-layer disc and ROM-type double-layer disc) to be easily and accurately performed. The method for identifying double-layer d... | 11/03/2009 |
| 7602684 | Discriminating method of an optical disc device for ascertaining the format of a loaded optical disc A discriminating method of ascertaining the format of the loaded optical disc for an optical disc device is disclosed. When the optical disc device operates under a close-loop control, related central error signal is amplified and measured, while the peak-to-peak va... | 10/13/2009 |
| 7564754 | Disk apparatus A disk apparatus that includes: a first determining unit that determines whether the maximum value of an amplitude of an RF signal is a first reference level or more and the minimum value of the detected amplitude of the RF signal is a second reference level or less... | 07/21/2009 |
