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Match Document Document Title
7626903 Optical disc apparatus and information recording and reproducing method  
Disclosed is an optical disc apparatus that sets a plurality of virtual zones, which correspond to a plurality of zones that are arranged in the radial direction of an optical disc, for a plurality...
7554911 Method for controlling play speed in an optical disc device  
A method is provided for controlling a play speed in an optical disc device in which the current play speed is rapidly lowered when the address information of an optical disc such as a CD or DVD is...
7548495 Optical storage device, recording method of optical storage medium and program  
A write retry processing unit repeats a write retry operation of a write and a verify, while performing a setting change of a focus offset for recording a data on an optical storage medium in case...
7522493 Recording method and apparatus for optical disk drive  
A recording method for an optical disk drive is implemented as follows. First, at least one of the level of the focusing error signal, the level of the tracking error signal, a wobble...
7471603 Optical analyzer  
There is provided an apparatus capable of switching between a laser that emits light having a wavelength suitable for detecting samples and a laser required for reading traced data, while an...
7450479 Disk recording apparatus for recording data by using zone CLV technology  
There is provided a disk recording apparatus capable of minimizing a servo error and recording in the last zone at the maximum one of the recording speeds specified in the apparatus or disk...
7423942 Optical disc device for recording different types of optical discs and data recording method for optical disc device  
In an optical disc device comprising: a pickup 3 having a laser diode and generating a laser beam for recording onto an optical disc 1 ; a disc motor 2 that drives the rotation of an optical...
7362672 Method and apparatus for disc rotation control in an optical storage system based on detected extent of disc warping  
An apparatus is provided for disc rotation control in an optical storage system, which is capable of generating a focusing error signal from light that was reflected by a loaded optical disc. The...
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...
7304926 Motor control system having output clamp function and method of the same  
A motor control system comprises a motor controller and a clamp apparatus and is used for controlling a motor apparatus. The motor controller is used for generating a motor control output according...
7266062 Noise removal using 180-degree or 360-degree phase shifting circuit  
A noise removal circuit of the present invention comprises a 180-degree odd multiple shifting section for outputting a 180-degree shifted signal that is phase-shifted from an input signal by an odd...
7257062 Method for detecting eccentricity of an optical disc, and optical disc drive that performs the method  
An optical disc drive includes a spindle motor and a computer program. The spindle motor is adapted for rotating an optical disc. The computer program configures the optical disc drive to perform...
7130255 Method of CD/DVD vibration detection by monitoring motor conditions  
This invention describes a method and apparatus to determine a safe rotational speed for a CD/DVD drive by detecting the amount of vibration of the disk by measuring the operating conditions of the...
7088657 Optical media integrity detection  
An optical media drive contains light reflective surfaces positioned about a transparent center portion of the optical media. The light reflective surfaces reflect laser light from a laser unit of...
7057992 Exposure apparatus for optical disc  
An exposure apparatus for an optical disc used for eliminating the vibrations in the propagating direction when a rotation mechanism rotates. The slider controller 40 and the spindle controller ...
7054248 Recording apparatus  
A recording apparatus having a microphone unit; and a drive unit adapted to drive a disk medium on which sound collected by the microphone unit is to be recorded. The recording apparatus is capable...
7027368 Motor control apparatus, disk apparatus and acceleration detection device  
A motor controlling device includes an acceleration detector for detecting an acceleration of a motor; a motor driver for supplying a driving current to the motor; a heat quantity calculator for...
7023770 Encoding rate-based, programmable, linear velocity, compressed audio compact disc player  
An audio player permits compressed or uncompressed audio CDs to be played. The preferred player includes a spindle motor control that causes the CD to be spun at a constant linear velocity that is...
7016278 Apparatus and method for controlling recording speed of optical disc recording system  
A method of controlling a recording speed of an optical disc recording system includes detecting error information with respect to a level of a servo control signal of the optical disc recording...
6977477 Systems, apparatus, and methods for motor control  
Systems and methods are provided through which the current to a spindle motor of the recording medium of a mass storage device is modulated to avoid anomalies in the operation of mass storage...
6967913 Information processing method for achieving optimization of recording velocity  
An optical disk recording method comprising steps of a) performing recording onto the optical disk with a ZCLV method by using zone parameter storage means for storing at least one zone division...
6958964 Apparatus for reproducing data from an optical disc inducing vibration and method thereof  
A method and apparatus for reproducing data from an optical disc in which a disc inducing vibration is detected and the speed of the disc is adjusted to an appropriate speed which does not cause...
6920095 Optical disk recording method and apparatus  
OPC data record in an optical disk is performed at a plurality of record velocities to obtain a maximum record velocity Vlmax. A rotation number of the optical disk is calculated and set, the...
6914864 Method and system for detecting cracks in optical discs  
A device for detecting a crack in an optical disc including a transmitter to propagate an optical signal through the optical disc and a receiver to detect the propagated signal. From the pattern...
6834032 Method, apparatus, and medium including computer readable code for processing data in a drive  
A method, apparatus, and medium for processing data in a Read Only Memory (ROM) drive. The data processing method includes: a ROM drive detecting, buffering, and decoding data at a target location...
6826136 Apparatus and method for controlling reproduction speed of an optical disk  
This invention provides method and apparatus for controlling reproduction speed of an optical disk, which detects the magnitude of a disk vibration after initial operation of an optical disk and...
6714432 Memory control device  
A memory control device capable of controlling data writing into a buffer memory where the data reproduced from a disk recording medium are stored temporarily is disclosed. The control device...
6671241 Method and apparatus for optical axis adjustment of optical driver  
A method for optical axis adjustment of an optical driver is provided for decreasing interference, providing a reliable sensitive determination with respect to the variation of incident angle for...
6643233 Write strategy for optical record carrier  
The invention provides a reliable write method of data on an optical record carrier without changing the conventional configuration of an information recording apparatus. The invention uses the...
6639883 Apparatus and method utilized in personal computer for control of disk drive rate to reduce its noise and vibration  
Apparatus and method for reducing noise and vibrations in a personal computer having at least one disk data-storage device (disk drive), e.g., CDROM drive. The disk drive operation (data reading...
6631105 Disk reproducing speed control method and a disk reproducing apparatus using this method  
When a deviated gravity disc is reproduced at a higher rate with the disc reproducing apparatus, an excessive vibration is generated and this vibration gives adverse effect on the disc reproducing...
6614738 Apparatus and method for controlling a reproduction speed of an optical disk based on a remaining battery energy  
The present invention relates to method and apparatus for controlling disk reproduction speed to extend an operable time of a portable device such as a notebook computer using a battery as a power...
6496458 Synchronized disk recording device having speed variation with recording condition  
When a recording condition judgement section ( 28 ) determines a recording condition of the recording of data onto a disk, and the recording is discontinued in response to the decision, a recording...
6452882 Method of compensating for an eccentricity of an optical disc and apparatus for doing the same  
There is provided an apparatus for compensating for an eccentricity of an optical disc, including a driver on which an optical disc is mounted for rotation, an optical head for emitting optical...
6442117 Reading/reproducing apparatus having retry arrangement upon failed reading/writing of a signal  
A reproducing apparatus including a reading apparatus for reading signals recorded on a recording medium, a reproducing apparatus for reproducing data from read-out signals from the reading...
6430127 Disk player for performing data reproduction recorded on a disk  
Read data is given reproduction processing, including data correction, in synchronism with a bit clock. A disk with signals recorded thereon according to a constant linear velocity method is able...
6414921 Servo control apparatus and method for compensating for axial vibration of an optical disk  
A servo control apparatus and method that adjust the allowable maximum rotation speed of an optical disk based upon the amount of disk axial vibration. The servo control apparatus in accordance...
6317399 Disk drive device and method of setting rotational speed thereof  
Vibrations transferred to the outside are lessened and high performance against external vibrations and impact is maintained. Further, data is recorded and reproduced satisfactorily. A CD-ROM drive...
6269061 Servo control system for disk player  
A servo control system for a shock-proof disk player comprising a digital signal processor, a voltage-controlled oscillator, a reference clock generator, a clock mode changeover switch, a phase...
6259661 Disk reading apparatus with rotary speed adjustment feature  
A disk reading apparatus for reading data recorded on a disk medium is disclosed. The disk reading apparatus comprises a motor for rotating the disk medium, a vibration sensor section for detecting...
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...
6236630 Method and apparatus for checking the quality of CD-ROMS or the like for reading them at matching speeds  
CD-ROMS of poor quality, such as those having eccentric center holes or uneven weight distributions circumferentially, are easy to wobble or otherwise vibrate when driven at high speed, overloading...
6195321 Disk rotation control apparatus with deceleration means  
A disk rotation control apparatus includes a spindle motor for rotating a disk, a rotational speed detecting device for detecting the rotational speed of the spindle motor, a signal generating...
6118743 Information storage apparatus rapidly returning from a sleep mode to a regular operation mode and a method for controlling a spindle motor in such an apparatus  
An information storage apparatus can be set to a sleep mode and returned from the sleep mode to a regular operation mode in a short time. A clock generating circuit generates a first clock and a...
6058092 Optical tape drive that includes redundant optical heads to perform failure recovery  
An optical tape drive including redundant optical heads to continue reading and writing data to an optical tape in the event of failure of one or more optical heads. The optical tape drive includes...
6032276 Apparatus and method for reading data from a disk type recording media  
An apparatus and method for reading data from a disk-type recording medium. The present invention controls the number of revolutions at which the recording medium rotates at according to the...
5982568 Apparatus for detecting error in magnetic head for use in disk storage system  
A data storage system that uses a magnetic head assembly having a write head and a read head mounted on a slider to write on and read from a disk. A portion of the coil of the write head is used as...
5835463 Spindle motor control system for use in an optical disk player  
In the case where a CPS unit (9) detects a period of clock components of reproduction data to be within a given range, the spindle motor (8) is driven in the CLV mode in stable and the mean value...
5706264 Disc apparatus having servo circuits which compensate for fluctuations in power supply  
A servo apparatus for which the servo operation remains stable even if the power supply voltages changes, and the control processing load and amount of control data necessary is reduced by setting...
5703854 Disc recording/reproduction apparatus and method for resetting an address control circuit to maximize an address margin of the memory  
A spindle servo circuit controls the rotation of a disc-driving spindle motor based on absolute address information taken from a disc. Reproduction digital data is written to and read from a RAM....
Matches 1 - 50 out of 55 1 2 >