Sony Corporation

Sony Disc & Digital Solutions Inc.

Sony Dadc Corporation

Digital Audio Disc Corporation

Sony Corporationn

Sony Disc & Digital Sloutions Inc.

Sony Disc & Digital Solution Inc.

Akiya Saito

Yoichiro Sako

Yoriaki Kanada

Shunsuke Furukawa

Yoshinobu Usui

Toru Aida

Tatsuya Inokuchi

Kaoru Kijima

Akiko Inoue

Koichi Nakajima

Toshihiko Senno

Etsuo Shibasaki

Takashi Kihara

Tatsushi Sano

Yoshiro Miyoshi

Yoshitake Yanagisawa

Shinobu Hayashi

Makoto Tsukahara

Tomihiro Nakagawa

Jun Sato

Kimihiro Saito

Toshiyuki Kashiwagi

Akitoshi Suzuki

Shinichi Fujita

Takao Ihashi

Michael L Mitchell

Barry A Fite

Takashi Yamanishi

Yoshihiro Akimoto

Anthony C New

Unique identification information is prerecorded on a disc. The identification information is registered to a server along with user's license when he or she buys the disc. When an terminal unit reproduces data from the disc, identification information is read and transmitted to the server through the Internet. The server creates a key that controls to reproduce data from the disc in accordance with the license identified by the identification information and transmits the key to the terminal unit along with the user's license information for the disc. The terminal unit controls to reproduce contents of the disc in accordance with key and license information transmitted from the server. The license for each disc is managed in accordance with the identification information. Thus, different services can be provided for individual discs.

Information service method, information service unit, recording or reproducing controlling method, and recording and/or reproducing unit

An optical recording medium and a manufacturing method for forming the optical recording medium is provided. The optical recording medium includes a bar code-shaped reflection pattern that includes high reflection rate regions and low reflection rate regions and information is recorded with the bar code-shaped reflection pattern. The low reflection rate region is formed with pit strings. The high reflection rate region and the low reflection rate region are formed to satisfy: S+M/2&#x2266;0.6H, where a signal level of a reproduction signal obtained from a reflection light in the high reflection rate region is denoted as 'H', a signal level of a reproduction signal obtained from a reflection light in the low reflection rate region is denoted as 'S', and a degree of modulation of the reproduction signal obtained from the reflection light in the low reflection rate region is denoted as &#x201c;M&#x201d;.

Optical recording medium, manufacturing method for optical recording medium

A master strategy adjustment method includes performing first recording on a master with a predetermined strategy, performing first measurement of an evaluation value of the master of the first recording, forming a first optical disc based on the master after the first recording, performing second measurement of an evaluation value of the optical disc formed as the first optical disc, calculating a target value of the evaluation value of the master based on a difference with the first measurement evaluation value and the second measurement evaluation value, and adjusting the strategy so that the evaluation value with regard to the master matches the target value, performing recording on the master with the adjusted writing strategy, performing measurement of the evaluation value of the master, and performing determination of whether the evaluation value is within a predetermined range with the target value as a reference until an affirmative result is obtained.

Master strategy adjustment method and disc manufacturing method

A recording apparatus includes a rotation driving portion that rotates and drives an optical disc master; and a recording portion that performs an information recording on the optical disc master, by performing a laser beam irradiation on the optical disc master, based on a recording waveform which has a land pulse of a first power, a recording waveform portion having a recording pulse of a second power higher than the first power, and a cooling pulse which has a third power lower than the first power and is inserted between the land pulse and the recording waveform portion.

Recording apparatus, master manufacturing apparatus, and method of manufacturing an optical disc recording medium

An optical disc medium and corresponding optical recording method and optical recording apparatus. The optical disc medium comprises a substrate on which a shape according to modulated information data has been formed, and a coating film formed on the substrate. Known data is recorded in a predetermined location of the information data, with the known data being rewritten as postscript information by recording a postscript portion to the coating film to alter a portion of the known data, wherein the postscript information comprises readable non-error data.

Optical disc medium and data recording method and apparatus

A method of recording data includes: a first recording step of recording data in a condition that, within a certain error correction block in a data format in which error correction blocks with n rows and m columns including at least main data, error detection code, and error correction parity are formed, an allocated location of additional supplementary information is set in a location in the same column as an allocated location of the error detection code, and an additional recording area is formed for recording additional information containing the additional supplementary information and the error detection code and the error correction parity necessary to be recorded according to the recording of the additional supplementary information; and a second recording step of recording the additional information in the additional recording area after the data recording at the first step is executed.

Method of recording data, method of manufacturing read-only optical disc, and read-only optical disc

A recording drive waveform adjusting method for manufacturing a master disc is provided. The method includes forming an exposed area in an inorganic resist layer for test exposure by irradiating a master disc having the inorganic resist layer with laser light of a recording power based on a recording drive waveform according to a test recording signal. The method also includes obtaining reflected-light information by irradiating the exposed area formed in the test exposure with laser light of a reproducing power, determining whether the recording drive waveform is appropriate by using the reflected-light information, and correcting the recording drive waveform if the recording drive waveform is determined to be inappropriate in the determination.

Recording drive waveform adjusting method for manufacturing master disc, master disc manufacturing method, master disc manufacturing apparatus, and master disc

A molding and film forming apparatusmolds a disc substrate from a stamperformed from an optical disc disc-masterand forms a coating film, for example, a reflective film onto the disc substrate, thereby forming a recorded optical disc. A postscript apparatuswrites postscript information once onto an optical discformed by the molding and film forming apparatus. As postscript information, a laser beam is irradiated to a predetermined interval of the optical disc, a portion which is detected as a pit is formed, and an optical discon which postscript informationhas been recorded is formed. Identification information which enables each optical discto be identified can be postscribed. The postscript information is recorded in a conventional format and the postscript information can be reproduced by an existing reproducing apparatus.

Optical disk medium, and data recording method and device

A recording medium including at least a lead-in region, a recording region in which information is recorded, and a lead-out region. In this configuration, medium information including medium identification information and relevant information is recorded in at least any one of the lead-in region, the recording region, and the lead-out region.

Recording medium, recording method, information transmission method, terminal device, and server device

An administrative system receives unique ID information of disk from an orderer for ordering manufacture of the disks and provides the unique ID information for a disk maker. The maker stores on the disk unique attribute information of the disk including identification information for the disk maker side. The administrative system obtains normal recording information generated if normal recording is carried out when recording on the disk the unique attribute information of the disk. Alternatively, the administrative system obtains abnormal recording information generated if abnormal recording is carried out. Disk administrative information, for example, number of pieces of the disks delivered from the factory, is generated from the obtained normal and abnormal recording information.

Method and system for administering storage medium

A recording medium is applicable to information service system for receiving and transmitting information when a terminal device on the user's side accesses an administrative server, which is a server device, using a communication line such as the Internet. This recording medium () comprises a lead-in region (), a data recording region () positioned on an outer region than the lead-in region, and a lead-out region () positioned on an outer region than the data-recording region. In at least any one of these regions (), (), and (), multiple pieces of identification information are recorded.

Recording medium, recording method, recording device, reproduction device, data transmission method, and server device

Recording medium, recording method, recording apparatus, reproduction apparatus, data transmission method, and server device

First, an ID added disc is loaded. A disc ID is read from the disc at step S. The disc ID matches a hardware ID of hardware that can use software recorded on the disc. If the disc ID has not been read from the disc, an error process is performed. At step S, a hardware ID of hardware connected to a personal computer is obtained. At step S, it is determined whether or not both the IDs match. When the determined result represents that they match, at step S, an application starts. When the determined result at step Srepresents that they do not match, at step S, an error message is displayed on a display of the personal computer.

Data recording medium, program starting method, and program

On a CD-R, a UID that is unique identification information is pre-recorded. When the CD-R is loaded into an information terminal unit, the UID is read and transmitted to a management server through the Internet. The management server determines whether predetermined data can be recorded onto the CD-R in accordance with the received UID. For example, when the UID is valid, contents data is downloaded from the management server to the information terminal unit and recorded onto the CD-R. In addition, for example, when the UID is valid, a notification that represents that contents data is permitted to be copied or moved is transmitted from the management server to the information terminal unit. As a result, contents data recorded on another recording medium can be copied or moved to the CD-R.

Data recording medium, data recording method, data processing device, data distribution method, data distribution device, data transmission method, data transmission device, data distribution system, and data communication system

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Kanagawa, Japan

Akiya Saito