| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 369470490 |
Control of transducer assembly mechanism
| 300 |
| 369470380 |
Control of relative motion producing mechanism
| 39 |
| 369470550 |
During initialization or start-up or changing system mode | 4 |
| 20090274027 | STORAGE DEVICE AND ITS DRIVE STARTUP METHOD - The time required for starting up drives in a storage device mounted with both hard disk drives and solid state drives is shortened. A storage controller of the storage device identifies the type (HDD/SSD) of the mounted drives before starting up the drives. The storage controller thereafter performs staggered spinup to the HDDs in several batches. After the startup of HDDs is complete, the storage controller collectively starts up the SSDs. The storage controller determines the drive startup processing based on a pre-set drive startup policy such as reduction of the peak current reduction or shortening of the startup time, and the drive type identification result. | 11-05-2009 |
| 20100074075 | METHOD AND DEVICE TO IMPROVE START-UP PERFORMANCE OF A MULTI-LAYER OPTICAL DISC - A method comprising recording data related to a start-up procedure on at least one of a plurality of recording layers disposed on an optical record carrier for reading back the recorded data during subsequent start-ups, the selection of the at least one recording layer based on properties of the at least one recording layer is disclosed. The technique reduces the optical record carrier start-up time and is useful for DVD, HD-DVD and BD recorders and/or players. | 03-25-2010 |
| 20100302923 | DISC STARTUP TIME OF AN OPTICAL DRIVE - A method of loading an optical record carrier into an optical drive is disclosed. The method comprises using a subset of a set of initial startup procedures for subsequent startups, the set of initial startup procedures comprising procedures that the optical drive requires to start recording or reading the optical record carrier. The method is useful for CD, DVD, HD-DVD and BD recorder and/or players. The method reduces the disc startup time and enhances the user satisfaction index. | 12-02-2010 |
| 20120057444 | Information Processing Apparatus and Operation Control Method of an Information Processing Apparatus - According to one embodiment, an information processing apparatus includes an optical disc drive, a data processing module which executes data processing using the optical disc drive, and a power supply management module which manages supply of power to the optical disc drive. The data processing module interrogates the power supply management module about the optical disc drive at the time of activation, and waits until an operating system recognizes the optical disc drive when an instruction is received from the power supply management module in response to an interrogation. The instruction instructs to wait until the operating system recognizes the optical disc drive. The power supply management module shifts the optical disc drive to a power supply on state and returns the instruction to the data processing module, if the optical disc drive is in a power supply off state when the interrogation is received. | 03-08-2012 |
| 369470370 |
Control of spiral track spacing (e.g., signal variable pitch) | 3 |
| 20090103407 | Information Recording Medium, Information Recording Device And Method, And Computer Program For Controlling Recording - An information recording medium ( | 04-23-2009 |
| 20120275283 | RECORDABLE OPTICAL RECORDING CARRIER AND METHOD FOR MANUFACTURING RECORDABLE OPTICAL RECORDING CARRIER COMPATIBLE WITH CD-R - An optical recording carrier including, in a data recording area, a continuous-grooved main track for recording primary data to be stored, and a subtrack for recording control data including parameter data and address information. The control data includes a clock signal needless to be provided by the main track. The subtrack has a narrower full width at half maximum (FWHM) and a shallower depth than the main track. The distance between the main track and the subtrack is not more than half of that between two adjacent main tracks. The main track and the subtrack form a double-spiral pattern. When recording data, a recording spot tracks mostly along the centerline of the main track and reads the control data in the subtrack simultaneously to control the recording process. A method for manufacturing a recordable optical recording carrier compatible with a conventional CD-R is also provided. | 11-01-2012 |
| 20130343170 | RECORDING MANAGEMENT APPARATUS, RECORDING MANAGEMENT METHOD, AND PROGRAM - A recording management apparatus includes: a control unit configured to perform track setting processing arranged to set, by recording purpose, a plurality of tracks serving as continuous recording areas to one layer of a recording medium having a plurality of layers serving as recording layers where recording of information is performed by laser irradiation, and closing track processing arranged to set each track to a continuous recording completed state within one layer alone. | 12-26-2013 |
| Entries |
| Document | Title | Date |
|---|
| 20080253246 | METHOD FOR CONTROLLING BALL AUTO-BALANCE SYSTEM OF OPTICAL DISK DRIVE - A method for controlling a ball auto-balancing system of an optical disk drive is provided. A rotational member is fixed on a rotating axis of an optical disk drive and rotates synchronously therewith. A spindle motor drives the rotational member to accelerate and decelerate within the rotating speed range at least twice. When the spindle motor accelerates and decelerates for many times, if the measured central error value is greater than the last measured one, the accelerating and decelerating range is adjusted. | 10-16-2008 |
| 20080279064 | Optical Data Storage System and Method of Optical Recording and/or Reading - An optical data storage system for recording and/or reading, using a radiation beam having a wavelength X is described. The radiation beam is focused onto a data storage layer of an optical data storage medium. The medium has a cover layer that is transparent to the focused radiation beam. The cover layer has a thickness h smaller than 5 μm. A cover layer with thickness variation of substantially less than the focal depth, i.e. 50 nm, eliminates the need of dynamic focus control of the objective which is otherwise required in addition to the gap servo. Further a method of optical recording is described using such an optical data storage system by which a static focus control and spherical aberration correction to accommodate medium-to-medium variance is achieved. The static focus control can be realised by optimising the modulation depth of a known signal, e.g. from a lead-in track. | 11-13-2008 |
| 20090129222 | AN OPTICAL DRIVE WITH A VARYING BANDWIDTH - The invention discloses a method for operating an optical drive for e.g. a CD, DVD, HD-DVD or a BD disk. More specifically, the invention may improve the signal to noise ratio (SNR) and/or the carrier to noise ratio (CNR) during readout from an optical carrier by an optical drive by applying a low pass filter on a signal comprised in a data channel or an auxiliary channel of the optical drive. The low pass filter has a bandwidth frequency (f | 05-21-2009 |
| 20090141600 | DATA ERROR MEASURE BASED RECORDING SPEED CONTROL - The present invention relates to determining a data writing speed for writing data on a medium ( | 06-04-2009 |
| 20090190452 | Device and Method for Controlling Zero-Return of Opto-Mechanical System - A device for controlling zero-return of an opto-mechanical system of an optical disc drive is provided. The opto-mechanical system has an optical pickup head for reading data from an optical disc. The zero-return controlling device includes a servo system, a stepper motor driver chip and a signal detecting unit. The servo system issues a triggering signal when the optical disc is loaded. The stepper motor driver chip issues a stepper motor driving signal to the stepper motor in response to the triggering signal. The stepper motor is driven to rotate in response to the stepper motor driving signal. The signal detecting unit is used for detecting the magnitude of the stepper motor driving signal. A suspending signal is issued from the signal detecting unit to the stepper motor driver chip to stop the stepper motor if the magnitude of the stepper motor driving signal exceeds a threshold value. | 07-30-2009 |
| 20090279402 | INFORMATION RECORDING MEDIUM, INFORMATION RECORDING APPARATUS AND METHOD, AND COMPUTER PROGRAM - An information recording apparatus is for recording user data and recording management data onto an information recording medium being provided with: a first recording layer; and a second recording layer, each of the first recording layer and the second recording layer having a user data area to record therein at least the user data and a recording management area to record therein at least the recording management data for managing recording of the user data, the information recording apparatus is provided with: a recording device for dividing the recording management area into a plurality of recording management segments and for recording the recording management data into at least one of the plurality of recording management segments; and a first controlling device for controlling the recording device to dispose each of the plurality of recording management segments in a single recording layer. | 11-12-2009 |
| 20100014399 | INFORMATION REPRODUCING APPARATUS AND METHOD, AND COMPUTER PROGRAM - An information reproducer ( | 01-21-2010 |
| 20100027391 | Control apparatus and method for content reproducing - In a content reproducing system ( | 02-04-2010 |
| 20100214891 | OPTICAL PICKUP DEVICE, OPTICAL DISC DEVICE, COMPUTER, OPTICAL DISC PLAYER, AND OPTICAL DISC RECORDER - A first light source | 08-26-2010 |
| 20110007614 | RECORDING DEVICE AND METHOD, COMPUTER PROGRAM, AND RECORDING MEDIUM - A recording apparatus is provided with: a recording device for recording a data pattern onto a recording medium provided with a user data area; a first controlling device for controlling the recording device to record the data pattern for adjusting the recording condition into an area portion which is outer than an end on an outer side of a recording-scheduled area portion and in which the data pattern is scheduled to be recorded; a reading device for reading the data pattern recorded by the control of the first controlling device, thereby obtaining a read signal; a measuring device for measuring jitter of the read signal; an adjusting device for adjusting a recording condition such that the jitter satisfies a desired condition, and a second controlling device for controlling the recording device to start the recording into the recording-scheduled area portion by using the recording condition adjusted by the adjusting device. | 01-13-2011 |
| 20110317531 | Optical Disk Drive Including Non-Volatile Memory and Method of Operating the Same - An optical disk drive includes a non-volatile memory. The optical disk drive is booted based on driving information stored in the non-volatile memory. When a write command is received from a host, the optical disk drive stores data to be recorded in an optical medium in the non-volatile memory and then writes the data in the optical medium independent of the host. | 12-29-2011 |
| 20130315046 | OPTICAL DISC DEVICE - An optical disc device includes an optical pickup and a controller. The optical pickup is configured to emit light to an optical disc and detect the light reflected on the optical disc. The controller is configured to perform adjustment of at least one of spherical aberration, focus balance and lens tilt of the optical pickup based on a reproduction signal corresponding to the light detected by the optical pickup. The controller is further configured to perform the adjustment based on a level of the reproduction signal of adjustment-use recording. The controller is further configured to perform re-adjustment after performing subsequent adjustment-use recording in response to the level of the reproduction signal of the adjustment-use recording being at or below a specific threshold after the adjustment. | 11-28-2013 |
