U.S. patents available from 1976 to present.
U.S. patent applications available from 2005 to present.

Icon_funbox Quotables

"I watched his countenance closely, to see if he was not deranged ... and I was assured by other senators after he left the room that they had no confidence in it."

U.S. Senator Smith of Indiana ; After seeing Samuel Morse demonstrate the telegraph.

Newsletter  PatentStorm News

Make the Most of Our Site

See this month's Top Inventors and Most Cited Patents.

Stay on top of the latest innovations by subscribing to an RSS feed.

Registered users: Manage your profile.

 

Class 369/53.2 - Of record carrier


Subclass of Class 369 - Dynamic information storage or retrieval
Definition: Subject matter wherein the component thereof is the record
No. of applications: 428
Last issue date: 03/01/2012


1                      
Application No.Application TitleIssue Date
20120051202DISTINCTION METHOD FOR OPTICAL DISK TYPE, OPTICAL DISK DEVICE, AND INTEGRATED CIRCUIT
Provided are an optical disc discrimination method, an optical disc device and an integrated circuit that enable to accurately discriminate the type of an optical disc. The optical disc discrimination method comprises a first seeking step (S3) of performing a see...
03/01/2012
20120033536OPTICAL RECORDING METHOD AND OPTICAL RECORDING DEVICE
In an optical recording method, recording parameters (WU) to be used for recording are obtained using recommended recording parameter values (WR) read from an optical recording medium and previously obtained vector information (PC) and approximation coefficients (Ca, Cb...
02/09/2012
20120026850OPTICAL DISC REPRODUCTION APPARATUS
An instantaneous jitter information detection section detects, based on first and second digital values indicating different polarities relative to a predetermined reference value, an instantaneous gradient value corresponding to a difference value between the first and...
02/02/2012
20110310716METHOD AND DEVICE FOR DETECTING THICKNESS OF OPTICAL DISC
A method for detecting a thickness of an optical disc is provided. Firstly, a beam intensity signal and a focusing error signal are generated. Then, a first time interval for a focus point of the laser beam to move from a first layer to a second layer of the optical dis...
12/22/2011
20110292779METHOD FOR IDENTIFYING GROUP OF MULTILAYER DISC, AND OPTICAL DISC DEVICE
The present invention provides a method for determining what group a given multilayer optical disc belongs to. The disc is one of a number of multilayer optical discs, which are designed so that information stored is retrievable from any of the discs by irradiating the ...
12/01/2011
20110292780INFORMATION RECORDING MEDIUM EVALUATION METHOD, INFORMATION RECORDING MEDIUM, METHOD FOR MANUFACTURING INFORMATION RECORDING MEDIUM, SIGNAL PROCESSING METHOD AND ACCESS CONTROL APPARATUS
A method for rating an information recording medium according to the present invention includes the steps of: receiving a digital read signal, which has been generated based on an analog read signal representing information that has been read from the information record...
12/01/2011
20110280114METHOD 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 location is stored in a memory. A location of a sensor of the disk drive relat...
11/17/2011
20110280113Optical Storage System and Method for Writing Data to an Optical Disc
The invention relates to an optical data system comprising an optical disc drive and a host. The optical disc drive is arranged to receive an optical disc and perform read and write actions with respect to the optical disc. The host is arranged to instruct the optical d...
11/17/2011
20110228656METHOD AND APPARATUS FOR RECORDING INTERFERENCE FRINGE PATTERN
In order to record an interference fringe pattern in a recording layer of a medium, a plurality of laser beams are caused to interfere so as to form interference fringes in the recording layer; and during a time period over which the plurality of laser beams are caused ...
09/22/2011
20110222384OPTICAL DISC DEVICE AND OPTICAL DISC DEVICE DRIVE METHOD
An optical disc apparatus of the present invention records and/or reproduces data to/from an optical disc where data is recorded on one of a groove track and a land track. The optical disc apparatus includes an identification section for identifying the type of the opti...
09/15/2011
20110214140OPTICAL RECORDING MEDIUM, APPARATUS AND METHOD OF RECORDING/REPRODUCING DATA THEREON/THEREFROM, AND COMPUTER READABLE RECORDING MEDIUM STORING PROGRAM TO PERFORM THE METHOD
A recording medium on which a recording/reproducing unit block is recorded, an apparatus to record and/or reproduce data on/from the recording medium, and a method of recording/reproducing the data on/from the recording medium. The recording/reproducing unit block compr...
09/01/2011
20110211434METHOD OF RECOGNIZING TRACK PITCH OF OPTICAL DISK
A method of recognizing a track pitch of an optical disk, adapted for an optical disk player, is provided. The method includes the steps of driving an optical pickup head to a predetermined position, so that the optical pickup head and the spindle motor are a predetermi...
09/01/2011
20110182156OPTICAL DISC RECORDING METHOD, OPTICAL DISC RECORDING DEVICE CONTROL METHOD, OPTICAL DISC RECORDING DEVICE, HOST DEVICE, OPTICAL DISC RECORDING CONTROL PROGRAM, AND OPTICAL DISC RECORDING DEVICE CONTROL PROGRAM
Optical disc recording processing of recording data to be recorded on an optical disc having a plurality of recording layers at a recording velocity depending on the radial position includes use pattern selection processing of selecting a use pattern in which given reco...
07/28/2011
20110170389OPTICAL INFORMATION MEDIUM MEASUREMENT METHOD, OPTICAL INFORMATION METHOD, OPTICAL INFORMATION MEDIUM, RECORDING APPARATUS, AND REPRODUCING APPARATUS
An optical information medium measurement method of the present invention, for measuring a degree of modulation in an optical information medium of a multilayered structure having a plurality of information layers, includes a first step of measuring the modulation degre...
07/14/2011
20110170390DIGITAL BROADCAST RECEIVER
Provided is a digital broadcast receiver capable of displaying a message, a list of titles of contents or the like together with a viewing screen without interrupting viewing of contents. The digital broadcast receiver includes a controller 25 configured to deter...
07/14/2011
20110141868DATA STORAGE SYSTEM AND METHOD FOR CALIBRATING SAME
Disclosed herein are aspects of optical tape technology, tape manufacturing, and tape usage. Methods and systems of tape technology disclose optical tape media including: configurations, formulations, markings, and structure; optical tape manufacturing methods, systems,...
06/16/2011
20110080816OPTICAL DISK APPARATUS AND METHOD OF PERFORMING LEAD-IN PROCESS THEREOF
An optical disk apparatus and a method of performing a lead-in process with respect to an optical disk thereof includes a feature where an optical pickup unit reads out information recorded on a file system area of the storage area of the optical disk, and performs a le...
04/07/2011
20110080819SYSTEMS AND METHODS FOR RELIABILITY TESTING OF OPTICAL MEDIA USING SIMULTANEOUS HEAT, HUMIDITY, AND LIGHT
Methods and systems for the rapid evaluation of optical media reliability are disclosed. Simultaneous exposure of optical media to heat, humidity, and light has been found to be an effective test to differentiate more stable media from less stable media in a reasonable ...
04/07/2011
20110069593METHOD OF IDENTIFYING PHYSICAL CHARACTERISTIC INFORMATION OF OPTICAL DISC AND RELATED CONTROLLER THEREOF
A method of identifying physical characteristic information of an optical disc includes: deriving a reading result by reading at least a first region of the optical disc, where a location of the first region is specified in a Blu-ray disc specification for recording inf...
03/24/2011
20110007617RECORDING/REPRODUCING DEVICE AND LASER DRIVING PULSE ADJUSTING METHOD
A recording/reproducing device includes an optical head unit which performs writing and reading of information expressed by marks and spaces on an optical recording medium by irradiating laser light onto the optical recording medium, a laser driving pulse generating uni...
01/13/2011
20100315925METHOD FOR DISCRIMINATING DISC
A disc discriminating method for use in an optical disc drive includes the following steps. Firstly, an optical pickup head of the optical disc drive is controlled to move in a first direction when the optical pickup head is in a track-unlocked state. Then, a tracking e...
12/16/2010
20100315924Over Current Protection Device
An over current protection device is described. It includes a plurality of input channels for receiving an input signal; a plurality of low pass filters coupled to a first group of the plurality of input channels, wherein each low pass filter is associated with one inpu...
12/16/2010
20100309764MULTILAYERED OPTICAL DISK AND ITS RECORDING METHOD
To provide a recording method of a multilayered optical disk having three or more recording layers, for performing recording while securing sufficient test areas without reducing user data areas, and while suitably controlling the power of laser beam irradiated onto eac...
12/09/2010
20100296377METHOD OF EVALUATING CHARACTERISTICS OF MULTILAYER OPTICAL RECORDING MEDIUM
A multilayer optical recording medium having three or more information recording layers is irradiated with a laser beam, and a first signal obtained from the reflected laser beam is subjected to a frequency filter. A second signal obtained by filtration through a high-p...
11/25/2010
20100271917TEST-WRITE METHOD, INFORMATION RECORDING METHOD, AND INFORMATION RECORDING APPARATUS
A test-write method for accurately and quickly determining recording conditions, and an apparatus suitable therefor. In a 2T-based strategy, recording pulse conditions are determined by separately test-writing an even-number length mark and an odd-number length mark, an...
10/28/2010
20100246352OPTICAL INFORMATION RECORDING MEDIUM, REPRODUCING DEVICE FOR OPTICAL INFORMATION RECORDING MEDIUM, CONTROL METHOD AND CONTROL PROGRAM FOR THE REPRODUCING DEVICE, AND MEDIUM WITH THE CONTROL PROGRAM RECORDED THEREIN
A super-resolution medium (1) has a medium identification information for specifying a type of medium recorded in a medium information area (3) by use of pre-pits having a length not shorter than a length of a resolution limit of an optical system in a rep...
09/30/2010
20100246353OPTICAL INFORMATION RECORDING MEDIUM, REPRODUCING DEVICE FOR OPTICAL INFORMATION RECORDING MEDIUM, CONTROL METHOD AND CONTROL PROGRAM FOR THE REPRODUCING DEVICE, AND MEDIUM WITH THE CONTROL PROGRAM RECORDED THEREIN
A super-resolution medium (1) has a medium identification information for specifying a type of medium recorded in a medium information area (3) by use of pre-pits having a length not shorter than a length of a resolution limit of an optical system in a rep...
09/30/2010
20100246351INFORMATION PROCESSING APPARATUS AND FAULT SYMPTOM DETERMINATION METHOD
According to one embodiment, an information processing apparatus includes an optical disc drive, a measuring module in the optical disc drive, and a measurement value reception module. The measuring module is configured to measure a value related to an operation of a pr...
09/30/2010
20100232273OPTICAL DISC DEVICE
The optical disc apparatus of this invention includes: an optical pickup 104 to converge a light beam on an information layer of an optical disc 102; a drive section 105 to move the beam along the radius of the disc 102; a tracking error dete...
09/16/2010
20100232274METHOD AND APPARATUS FOR DETECTING DISC
A method for detecting a disc, the method includes the steps of: reading a file system of the disc; determining a type of the disc according to the file system; and abandoning a multi-session checking process upon the disc if the type of the disc is a one-session disc....
09/16/2010
20100226226OPTICAL DISK, OPTICAL DISK DEVICE, OPTICAL DISK DEFECT REGISTERING METHOD, OPTICAL DISK RECORDING METHOD, AND OPTICAL DISK REPRODUCING METHOD
An optical disc 1 according to the present invention has a first defect management area 6, to which a first kind of defect management information about non-permanent defects may be added, and a second defect management area 7, to which a second kind...
09/09/2010
20100214889MEDIA PROCESSING DEVICE, MEDIA PROCESSING SYSTEM, AND MEDIA PROCESSING METHOD
A media processing device can identify particular attributes of the recording media, such as the type of recording medium, and can sort by attribute a plurality of intermingled recording media including recording media that may or may not have been previously used and r...
08/26/2010
20100218204PHOTODETECTOR
A light receiving device generates photocurrent that corresponds to the quantity of incident light. A capacitor is arranged with one terminal set to a fixed electric potential, and is charged using the photocurrent. A comparator compares the voltage that occurs between ...
08/26/2010
20100214892OPTICAL RECORDING DEVICE AND METHOD OF OPERATING AN OPTICAL RECORDING DEVICE
The position of a write spot on an optical record carrier, during a write operation by an optical recording device, is important for the quality of the data recorded. Radial positioning of the spot may be facilitated by means of tracking spots, signals from which identi...
08/26/2010
20100202261OPTICAL RECORDING MEDIUM, OPTICAL RECORDING MEDIUM MANUFACTURING METHOD, REPRODUCTION SIGNAL PROCESSING METHOD AND EVALUATION METHOD
An optical head 12 reproduces information recorded on an optical disc 11, a BCA detector 21 and a medium discriminating circuit 22 acquire waveform distortion information for specifying a waveform distortion of a reproduction signal reproduce...
08/12/2010
20100202263METHOD FOR JUDGING OPTICAL DISC, OPTICAL DISC DEVICE AND PROGRAM
Provided is a method for easily judging that a disc is an optical disc that conforms to the DVD Download standards, without generating malfunction. A Wobble signal is detected in a data zone (21) of an optical disc (YES in a step (S2)), CSS information is ...
08/12/2010
20100188948Recording parameter setting device, program thereof, computer-readable recording medium containing the program, information recording medium, recording/reproducing device, and recording parameter setting method
A recording parameter setting device includes a trial recording parameter setting section (23) and a reproduced signal quality judging section (26). The trial recording parameter setting section (23) inquires, in accordance with the recording inform...
07/29/2010
20100188947Automatic DTS CD Versus CD-DA Detection Within a File System-Based Device
A method of detection is described to be used in file system-based player devices to determine the type of compact disk that has been inserted into a player. The method automatically distinguishes between the DTS-CD format and standard audio CDs. The method allows the o...
07/29/2010
20100188950INFORMATION RECORDING APPARATUS AND METHOD
A disc-shaped information recording medium includes a first recording layer (L0 layer) having (I) a first trial write area (101P-1) for trial write of first trial write information for calibration of the laser beam along the first track path (TP1) f...
07/29/2010
20100188949Recording parameter setting device, program thereof, computer-readable recording medium containing the program, information recording medium, recording/reproducing device, and recording parameter setting method
A recording parameter setting device includes a trial recording parameter setting section (23) and a reproduced signal quality judging section (26). The trial recording parameter setting section (23) inquires, in accordance with the recording inform...
07/29/2010
1                      
 
Sign InRegister
Username  
Password   
forgot password?