Patents Assigned to Sony Disc & Digital Solutions Inc.
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Patent number: 7782744Abstract: A recording method whereby an inorganic resist made of an incomplete oxide of a transition metal is formed as a film onto a substrate and a latent image corresponding to pits is formed onto the inorganic resist by exposure. The exposure is performed by a laser beam whose intensity has been modulated by a pulse signal whose pulse height decreases in a rear portion in a length direction of the pit, thereby forming a format of a track pitch smaller than a recording beam diameter (track pitch/exposure beam diameter=0.333 to 0.833).Type: GrantFiled: January 30, 2009Date of Patent: August 24, 2010Assignees: Sony Corporation, Sony Disc & Digital Solutions, Inc.Inventors: Sohmei Endoh, Noriyuki Saito, Takahiro Igari, Takeshi Gouko, Shinji Minegishi, Eijiro Kikuno
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Patent number: 7783577Abstract: 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.Type: GrantFiled: October 31, 2003Date of Patent: August 24, 2010Assignees: Sony Corporation, Sony Disc & Digital Solutions Inc.Inventors: Kaoru Kijima, Yoichiro Sako, Shunsuke Furukawa, Yoriaki Kanada, Koichi Nakajima, Akiya Saito, Etsuo Shibasaki, Akiko Inoue
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Publication number: 20100208314Abstract: Disclosed herein is a hologram recording medium, wherein in a volume hologram, the hologram recording medium is covered with a partially patterned optical functional film on the side closer to the viewer than a hologram recording layer without the medium of air, and wherein the hologram recording medium maintains its appearance approximately unchanged irrespective of the presence or absence of the optical functional film.Type: ApplicationFiled: February 5, 2010Publication date: August 19, 2010Applicants: SONY CORPORATION, SONY DISC & DIGITAL SOLUTIONS INC.Inventors: Akira Shirakura, Nobuhiro Kihara
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Publication number: 20100180125Abstract: 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.Type: ApplicationFiled: March 25, 2010Publication date: July 15, 2010Applicants: Sony Corporation, SONY DISC & DIGITAL SOLUTIONS INC.Inventors: Kaoru KIJIMA, Yoichiro Sako, Shunsuke Furukawa, Yoriaki Kanada, Koichi Nakajima, Akiya Saito, Etsuo Shibasaki, Akiko Inoue
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Publication number: 20100150189Abstract: A laser control method includes the steps of: using a laser control circuit which includes a constant current circuit that maintains a constant current flowing through a semiconductor laser element, and which includes an adder and a multiplier connected to a stage preceding the constant current circuit, and using detection means for calibration for detecting an applied laser output; calculating, on the basis of a detection signal output from the detection means, a reference bias value and a reference gain value for obtaining a specified laser output with respect to a specified input to the multiplier; inputting the reference bias value and the reference gain value to the adder and the multiplier, respectively; and controlling the applied laser output from the semiconductor laser element by performing calibration.Type: ApplicationFiled: November 25, 2009Publication date: June 17, 2010Applicant: SONY DISC & DIGITAL SOLUTIONS INC.Inventors: Kunio Nakayama, Koji Ishiwata, Cheonseok Park
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Publication number: 20100143636Abstract: There is provided a read-only optical information recording medium including a reflective film which has high reflectivity, and is superior in environment resistance at the time of being kept in a high-temperature, high humidity environment as well as light resistance at the time of being kept in a high-intensity light irradiation environment and repeating reproduction durability against a repeating reproduction test. In a read-only optical information recording medium in which at least one reflective film and at least one light transmissive layer are laminated in order on a substrate, the reflective film is made of a Ag-base alloy including 0.01 to 1.0 at % of Bi and 0.1 to 13.0 at % of Cu.Type: ApplicationFiled: April 10, 2008Publication date: June 10, 2010Applicants: SONY DISC & DIGITAL SOLUTIONS INC., KABUSHIKI KAISHA KOBE SEIKO SHO, KOBELCO RESEARCH INSTITUTE, INC.Inventors: Naoki Okawa, Yuki Tauchi, Junichi Nakai
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Publication number: 20100134892Abstract: In an optical device, a number of structures having higher portions or lower portions are arranged at a fine pitch equal to or shorter than a wavelength of visible light on a surface of a base. Each of the structures is arranged to form a plurality of arc track rows on the surface of the base, and to form a quasi-hexagonal lattice pattern, and the structure has an elliptical cone or truncated elliptical cone shape having a major axis in a circumferential direction of the arc tracks.Type: ApplicationFiled: December 9, 2009Publication date: June 3, 2010Applicants: SONY CORPORATION, SONY DISC & DIGITAL SOLUTIONS INC.Inventors: Sohmei Endoh, Kazuya Hayashibe, Tooru Nagai, Ikuhiro Hideta, Toshihiko Shirasagi, Kimitaka Nishimura, Tadao Suzuki
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Publication number: 20100119763Abstract: A production method for an optical disc master includes the steps of: preparing a substrate; forming an intermediate layer having a predetermined thickness on the substrate; forming an inorganic resist layer having a thickness on the intermediate layer, a ratio of the thickness of the intermediate layer to the thickness of the inorganic resist layer being in a range between 0.8:1 and 1.5:1; irradiating the inorganic resist layer with a laser beam to selectively expose the inorganic resist layer; and developing the selectively exposed inorganic resist layer.Type: ApplicationFiled: September 25, 2009Publication date: May 13, 2010Applicant: SONY DISC & DIGITAL SOLUTIONS INC.Inventors: Tadahisa Aoki, Katsunori Takeuchi
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Patent number: 7706245Abstract: A recording method whereby an inorganic resist made of an incomplete oxide of a transition metal is formed as a film onto a substrate and a latent image corresponding to pits is formed onto the inorganic resist by exposure. The exposure is performed by a laser beam whose intensity has been modulated by a pulse signal whose pulse height decreases in a rear portion in a length direction of the pit, thereby forming a format of a track pitch smaller than a recording beam diameter (track pitch/exposure beam diameter=0.333 to 0.833).Type: GrantFiled: May 30, 2008Date of Patent: April 27, 2010Assignees: Sony Corporation, Sony Disc and Digital Solutions, Inc.Inventors: Sohmei Endoh, Noriyuki Saito, Takahiro Igari, Takeshi Gouko, Shinji Minegishi, Eijiro Kikuno
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Patent number: 7673154Abstract: 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.Type: GrantFiled: July 2, 2003Date of Patent: March 2, 2010Assignees: Sony Corporation, Sony Disc & Digital Solutions Inc.Inventors: Yoichiro Sako, Shunsuke Furukawa, Yoriaki Kanada, Koichi Nakajima, Akiya Saito, Etsuo Shibasaki, Kaoru Kijima, Akiko Inoue
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Patent number: 7633045Abstract: In an optical device, a number of structures having higher portions or lower portions are arranged at a fine pitch equal to or shorter than a wavelength of visible light on a surface of a base. Each of the structures is arranged to form a plurality of arc track rows on the surface of the base, and to form a quasi-hexagonal lattice pattern, and the structure has an elliptical cone or truncated elliptical cone shape having a major axis in a circumferential direction of the arc tracks.Type: GrantFiled: August 21, 2007Date of Patent: December 15, 2009Assignees: Sony Corporation, Sony Disc & Digital Solutions Inc.Inventors: Sohmei Endoh, Kazuya Hayashibe, Tooru Nagai, Ikuhiro Hideta, Shirasagi Toshihiko, Kimitaka Nishimura, Tadao Suzuki
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Publication number: 20090279875Abstract: An information processing apparatus includes a playback controller and a storage unit. The playback controller reads per-disc or per-title identification information in the form of a media ID recorded onto a disc, and then executes content playback selection processing or determines a playback processing mode according to bit information included in the media ID. The storage unit stores a program that causes the processing of the playback controller to be executed. By thus using the media ID, provided services, such as the content authorized for playback, can be modified.Type: ApplicationFiled: April 16, 2009Publication date: November 12, 2009Applicants: SONY DISC & DIGITAL SOLUTIONS INC., SONY CORPORATIONInventors: Shinichi FUJITA, Kenjiro UEDA, Ryusuke NISHIDA, Takashi MATSUBARA
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Patent number: 7593311Abstract: 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 (10a) comprises a lead-in region (16a), a data recording region (14a) positioned on an outer region than the lead-in region, and a lead-out region (12a) positioned on an outer region than the data-recording region. In at least any one of these regions (12a), (14a), and (16a), multiple pieces of identification information are recorded.Type: GrantFiled: June 25, 2003Date of Patent: September 22, 2009Assignees: Sony Corporation, Sony Disc & Digital Solutions Inc.Inventors: Yoichiro Sako, Etsuo Shibasaki, Yoriaki Kanada, Akiya Saito, Koichi Nakajima, Shunsuke Furukawa, Kaoru Kijima, Akiko Inoue
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Patent number: 7549175Abstract: 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 (10a) comprises a lead-in region (16a), a data recording region (14a) positioned on an outer region than the lead-in region, and a lead-out region (12a) positioned on an outer region than the data-recording region. In at least any one of these regions (12a), (14a), and (16a), multiple pieces of identification information are recorded.Type: GrantFiled: April 17, 2007Date of Patent: June 16, 2009Assignees: Sony Corporation, Sony Disc & Digital Solution Inc.Inventors: Yoichiro Sako, Etsuo Shibasaki, Yoriaki Kanada, Akiya Saito, Koichi Nakajima, Shunsuke Furukawa, Kaoru Kijima, Akiko Inoue
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Publication number: 20090129255Abstract: A recording method whereby an inorganic resist made of an incomplete oxide of a transition metal is formed as a film onto a substrate and a latent image corresponding to pits is formed onto the inorganic resist by exposure. The exposure is performed by a laser beam whose intensity has been modulated by a pulse signal whose pulse height decreases in a rear portion in a length direction of the pit, thereby forming a format of a track pitch smaller than a recording beam diameter(track pitch/exposure beam diameter=0.333 to 0.833).Type: ApplicationFiled: January 30, 2009Publication date: May 21, 2009Applicants: Sony Corporation, Sony Disc & Digital Solutions, Inc.Inventors: Sohmei Endoh, Noriyuki Saito, Takahiro Igari, Takeshi Gouko, Shinji Minegishi, Eijiro Kikuno
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Publication number: 20090122676Abstract: An evaluation apparatus for obtaining an evaluation value of a signal read from an optical recording medium includes a reading device reading a signal recorded on the optical recording medium, an edge position detection device detecting edge positions of the read signal acquired by the reading device, a frequency distribution table generation device generating a frequency distribution table of the edge positions on the basis of accumulation result of information of the edge positions detected by the edge position detection device, and a first calculation device calculating a T degree value represented as [{?fi×(xi?A)(2m+1)}/F]{1/(2m+1)}??Formula 1 (wherein m is a natural number excluding zero) wherein, in the frequency distribution table generated by the frequency distribution table generation device, xi, fi, F, and A represent the value of each of the classes, the frequency of each of the classes, the sum of the frequencies, and the weighted average value, respectively.Type: ApplicationFiled: November 4, 2008Publication date: May 14, 2009Applicant: SONY DISC & DIGITAL SOLUTIONS INC.Inventor: Seiji TANIZAWA
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Patent number: 7529175Abstract: A recording method whereby an inorganic resist made of an incomplete oxide of a transition metal is formed as a film onto a substrate and a latent image corresponding to pits is formed onto the inorganic resist by exposure. The exposure is performed by a laser beam whose intensity has been modulated by a pulse signal whose pulse height decreases in a rear portion in a length direction of the pit, thereby forming a format of a track pitch smaller than a recording beam diameter (track pitch/exposure beam diameter=0.333 to 0.833).Type: GrantFiled: July 28, 2006Date of Patent: May 5, 2009Assignees: Sony Corporation, Sony Disc & Digital Solutions, Inc.Inventors: Sohmei Endoh, Noriyuki Saito, Takahiro Igari, Takeshi Gouko, Shinji Minegishi, Eijiro Kikuno
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Publication number: 20090057141Abstract: The invention relates to an Ag-based alloy sputtering target including at least one element selected from the group consisting of Ti, V, W, Nb, Zr, Ta, Cr, Mo, Mn, Fe, Co, Ni, Cu, Al, and Si in a total amount of 1 to 15% by weight, in which the Ag-based alloy sputtering target has an arithmetic mean roughness (Ra) of 2 ?m or more and a maximum height (Rz) of 20 ?m or more at a sputtering surface thereof.Type: ApplicationFiled: August 26, 2008Publication date: March 5, 2009Applicants: KOBELCO RESEARCH INSTITUTE, INC., SONY DISC & DIGITAL SOLUTIONS INC.Inventors: Yuki TAUCHI, Hitoshi Matsuzaki, Naoki Okawa
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Patent number: 7496965Abstract: 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.Type: GrantFiled: October 8, 2003Date of Patent: February 24, 2009Assignees: Sony Corporation, Sony Disc & Digital Solutions Inc.Inventors: Yoichiro Sako, Shunsuke Furukawa, Kaoru Kijima, Akiko Inoue, Etsuo Shibasaki, Yoriaki Kanada, Akiya Saito, Koichi Nakajima
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Publication number: 20090041933Abstract: 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.Type: ApplicationFiled: July 2, 2008Publication date: February 12, 2009Applicant: SONY DISC & DIGITAL SOLUTIONS INC.Inventors: Toru Aida, Akitoshi Suzuki, Shinobu Hayashi, Akiya Saito