Matches 1 - 40 out of 40


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US20090303850 OPTICAL DISC MEDIUM AND OPTICAL DISC DEVICE  
When using an optical disc medium that includes pit trains having their widths narrower than a diffraction limit, it is difficult to detect a tracking error signal and take a tracking-servo...
US20070025215 Disk reproducing device provided with pickup lens dirt detection function  
The invention provides a disk reproducing device capable of automatically detecting dirt on a lens without using any additional members. A pickup unit 5 reads a video signal of a storage medium 2,...
US20120113782 STORAGE MEDIA DEFECT DETECTION  
Detecting a defect on a storage device is disclosed. Detecting includes receiving a signal read from a storage device, sampling the signal to obtain a set of signal samples, wherein the sampling...
US20090135693 Data recovery through eliminating adjacent track interference  
A hard disk drive with a disk that contains a target track and an adjacent track. The drive includes a circuit that determines an error in data read from the target track. Data from the adjacent...
US20140140181 SYSTEMS AND METHODS FOR CONTENT PLAYBACK AND RECORDING  
A method for content playback and recording may include using a computer to obtain media content from a recorded medium. Concurrently with obtaining the media content, the method may include...
US20080273433 Media Processor  
A media processor, such as an optical disk publisher, is capable of efficiently discarding media such as a defective CD without using a manual discarding process. At the time of media publication...
US20080239901 Disk drive device and data rewrite method thereof  
Embodiments of the present invention help to reduce the occurrence of read hard errors in a hard disk drive (HDD). According to one embodiment, a HDD rewrites data on all data tracks of a block M...
US20090285062 Method for Rearranging Back-Up Data  
The invention discloses a method for rearranging back-up data, which first starts rearranging a back-up area when a rewritable optical disc is loaded, reads all available replacing blocks on the...
US20080074973 OPTICAL RECORDING MEDIUM DRIVING DEVICE AND SPHERICAL ABERRATION ADJUSTMENT METHOD  
An optical recording medium driving device includes an optical head, an evaluation signal generating section, a focus servo section, a spherical aberration correction section, a focus bias...
US20050254381 System and method for detecting faulty media in a media player  
The invention disclosed is a system and method for detecting faulty media in a media player. The system comprises a sensor or group of sensors to scan the media disc while it is loaded into the...
US20090073837 OPTICAL PICKUP  
An optical pickup to improve countermeasure capability of a disc by allowing polarized light of a spot on the disc to become elliptically polarized light includes a light source to emit...
US20070121456 DEFECT SIGNAL GENERATING CIRCUIT  
A defect signal generating circuit comprises a low pass filter circuit which receives an input signal whose signal level is changed from a reference level to a higher level or a lower level...
US20060215518 Method and device for protecting a servo in reading signals on a defect disc  
A device for protecting a servo in reading signals on a defect disc from disturbance and instability is provided. The device includes a defect detection unit and a logic combination unit. The...
US20080137499 Optical disk apparatus and focusing method  
An optical disk apparatus carries out focusing operation at a position shifted by a very small distance from the surface of a disk or from the recording surface of the disk in such a condition...
US20130064060 METHOD AND APPARATUS FOR DETERMINING A LOCATION OF A FEATURE ON A STORAGE MEDIUM  
A change in a property of a signal is detected, the signal having been sensed from a storage medium by a disk drive. A count is determined, the count corresponding to a first location on the...
US20060215520 Method and device for protecting a PLL in reading signals on a defect disc  
A device for protecting a PLL in reading signals on a defect disc from disturbance and instability is provided. The device includes a defect detection unit, a logic combination unit and a PLL. The...
US20050030861 Test recording process control method and optical disk apparatus for determining accurate optimum recording power of laser light beam  
In an optical disk apparatus for a rewritable optical disk including a test area including a plurality of partitions, an erase process is performed by emitting a laser light beam of a DC erase...
US20050276194 Apparatus, medium, and method for compensating for a defect on a medium based on a corresponding area being a recorded area or an unrecorded area  
An apparatus, medium, and method for compensating for a defect, based on a discrimination of whether the defect is in a recorded or unrecorded area in an optical recording medium. A method for...
US20100080099 DEVICE AND METHOD FOR REPRODUCING INFORMATION, AND COMPUTER PROGRAM  
An information reproducing apparatus (1) is provided with: a correcting device (18) for correcting waveform distortion occurring in a read signal corresponding to a long mark, of a read signal...
US20090135694 DEVICE AND METHOD FOR DETECTING DISC DEFECT  
A method for detecting a typical defect area on a disc track includes the following steps. Firstly, a source signal is provided. Then, first and second signals are generated according to the...
US20050078580 Defect handling for recording media  
A method for handling defects on a recording medium which deteriorate an adaptive bit recovery process is proposed. The method for handling defects on a recording medium during bit recovery from...
US20050286378 Data writing method  
A data writing method is used with an optical recording apparatus to write data into a rewritable disc. For writing data, the optical recording apparatus enters a writing mode and a first packet...
US20080106988 OPTICAL DISC PLAYBACK APPARATUS  
An optical disc playback apparatus with which collision of a lens and an optical disc is avoided is provided. Processes executed by a microcomputer of the optical disc playback apparatus when a...
US20060039252 Method for detecting data defect in optical recording medium  
A data signal includes a master signal generated by a master part of an optical pickup head in response to a light beam reflected from the optical recording medium and a side signal generated by a...
US20060013095 Method and apparatus for detecting defects on optical disk  
A defect detecting apparatus and a defect detecting method performs highly efficient and reliable defect detection over an optical disk. According to the defect detecting method, defect...
US20060146675 Methods, systems and computer program products for recording data on and/or reproducing data from an optical disk  
Systems for recording data on and/or reproducing data from an optical disk are provided. The system includes a microcontroller unit (MCU) and a defect detector, electrically coupled to the MCU....
US20050083814 Information recording and reproducing apparatus, information recording method and information recording program  
As information recording medium, an optical disc, such as a BD-R and the like, is applicable. The optical disc has a recording structure including a lead-in area, a lead-out area and a user data...
US20120039156 DEVICE AND METHOD FOR DETECTING DISC DEFECT  
A method for detecting a typical defect area on a disc track includes the following steps. Firstly, a source signal is provided. Then, first and second signals are generated according to the...
US20070171796 RECORDING AND REPRODUCING APPARATUS AND DEFECT DETERMINATION METHOD  
A recording and reproducing apparatus for recording data to and reproducing data from a hologram recording medium is provided. The recording and reproducing apparatus includes a light emitting...
US20050007914 Apparatus and method of recording a record map and write-once disc therefor  
A method and apparatus for recording a record map, and a write-once disc therefore. The write-once disc has at least one recording layer and stores a record map which identifies locations of...
US20110280114 METHOD AND APPARATUS FOR DETERMINING A LOCATION OF A DEFECT ON A STORAGE MEDIUM  
A defect is detected on a storage medium of a disk drive. A location of the defect is determined, within a smallest addressable unit of data stored on the storage medium. An indication of the...
US20090135695 Method of detecting an abnormal disc  
A method of detecting an abnormal disc is provided. Firstly, an objective lens is moved along a one-way path for enabling the light beam of the objective lens to pass through the data layer of a...
US20080151716 OPTICAL DISC RECORDING AND REPRODUCING APPARATUS AND OPTICAL DISC RECORDING AND REPRODUCING METHOD  
An optical disc recording and reproducing apparatus which reproduces data by the PRML scheme includes a recording waveform generating unit for generating a recording waveform, a reproducing unit...
US20070291607 Recording Device and Method, and Computer Program  
A recording apparatus (200) is provided with: a backup device (352) for backing up data recorded on one recording medium (455) onto another recording medium (100); a verifying device (359) for...
US20130201809 RECORDING/REPRODUCING SYSTEM AND SERVER  
If a fault, or deterioration in read-out quality, is detected during recording processing with respect to a first recording face, a duplication is made, with respect to the recorded data on the...
US20100226227 METHODS AND APPARATUSES OF PROCESSING READBACK SIGNAL GENERATED FROM READING OPTICAL STORAGE MEDIUM  
A method of processing a readback signal generated from reading an optical storage medium is provided. The method includes: performing a defect detection according to the readback signal to...
US20060087934 Apparatus for processing data stored on a data carrier having some defects and method of method of processing data on such a disc  
The apparatus comprises an emulator 62, which emulates the functions of the actuator 20, which moves the optical system used for the processing of data on the data carrier. By this measure the...
US20130188464 RECORD/ACCESS DEVICE AND RECORD/ACCESS METHOD  
A recording/reproduction device according to the present invention includes a recording/reproduction section for recording or reproducing data on or from an information recording medium; a...
US20130088946 METHOD FOR PLAYING BACK RECORDING MEDIUM AND RECORDING MEDIUM PLAYBACK DEVICE USING THE SAME  
A method for playing back data stored on a recording medium and a recording medium play back apparatus using the same are provided. A method includes determining a section of data to be updated,...
US20120014234 DATA RECORDING METHOD AND APPARATUS FOR RE-VERIFYING CORRECTNESS OF RECORDED DATA ON OPTICAL STORAGE MEDIUM  
An exemplary data recording method of an optical storage medium includes following steps: during a current recording operation for recording first data onto the optical storage medium, detecting...

Matches 1 - 40 out of 40