Patents Issued in September 6, 2007
  • Publication number: 20070206423
    Abstract: A solid-state image-capturing device which has built in an image-capturing area including a light receiving element provided on a semiconductor substrate, a substrate bias circuit, and a clamp circuit for receiving output of the substrate bias circuit and applying the output of the substrate bias circuit to the semiconductor substrate in accordance with a substrate pulse, comprises a substrate bias control circuit for controlling so as to reduce an electric current of the clamp circuit during a predetermined period.
    Type: Application
    Filed: February 12, 2007
    Publication date: September 6, 2007
    Applicant: Sony Corporation
    Inventors: Masahiro Segami, Kenji Nakayama, Isao Hirota
  • Publication number: 20070206424
    Abstract: A method for erasing a non-volatile memory is provided. The non-volatile memory includes a first conductive type substrate, a second conductive type well disposed in the first conductive type substrate, a first conductive type well disposed on the second conductive type well, and a memory cell disposed on the first conductive type substrate. The memory cell includes a charge trapping layer and a gate. The erasing method includes the following steps. A first voltage is applied to the gate, a second voltage is applied to the first conductive type substrate, and the second conductive type well is floating. The second voltage is large enough to induce a substrate hot hole effect. The holes are injected into the charge trapping layer by applying the first voltage.
    Type: Application
    Filed: September 13, 2006
    Publication date: September 6, 2007
    Applicant: POWERCHIP SEMICONDUCTOR CORP.
    Inventors: Chao-Wei Kuo, Chih-Ming Chao, Hann-Ping Hwang
  • Publication number: 20070206425
    Abstract: A semiconductor memory device capable of suppressing variation in a threshold voltage of a cell. A write controller monitors a write level of a cell and compares the write level with a predetermined set level (a predetermined current value) by measuring, for example, a bit line current during a write operation. Further, the write controller, when the write level reaches the set level, outputs a control signal for causing completion of the write operation. Therefore, variation in a threshold voltage of a cell after the write operation is suppressed.
    Type: Application
    Filed: July 17, 2006
    Publication date: September 6, 2007
    Inventor: Kazuhiro Takahashi
  • Publication number: 20070206426
    Abstract: Shifts in the apparent charge stored on a floating gate (or other charge storing element) of a non-volatile memory cell can occur because of the coupling of an electric field based on the charge stored in adjacent floating gates (or other adjacent charge storing elements). The problem occurs most pronouncedly between sets of adjacent memory cells that have been programmed at different times. To account for this coupling, the read process for a particular memory cell will provide compensation to an adjacent memory cell in order to reduce the coupling effect that the adjacent memory cell has on the particular memory cell.
    Type: Application
    Filed: March 17, 2006
    Publication date: September 6, 2007
    Inventor: Nima Mokhlesi
  • Publication number: 20070206427
    Abstract: An internal power supply generating circuit has a control circuit for controlling a control node voltage of a driver circuit thereof. During an overdrive duration, the control node voltage is set at an appropriate level of an operation range by controlling the control node voltage by the control circuit. By setting the control node voltage at the appropriate level, the internal power supply generating circuit can supply an internal power-supply voltage without a dead band after the overdrive duration. With this structure, the internal power supply generating circuit without the dead band can be obtained and a semiconductor device operable at a high speed comprising the internal power supply generating circuit can be obtained.
    Type: Application
    Filed: February 6, 2007
    Publication date: September 6, 2007
    Applicant: ELPIDA MEMORY, INC.
    Inventor: Atsunori Hirobe
  • Publication number: 20070206428
    Abstract: A high-speed double or quadrature data rate interface semiconductor device and a method thereof are provided. A transmitter (e.g., a data transmitting semiconductor device) for high-speed data transmission transmits a first strobe signal and a second strobe signal, which have a phase difference of 90 degrees there-between, a first group (byte of) data, and a second group (byte of) data. The transmitter adjusts the phase of at least one of the first and second strobe signals based on phase-error information fed back from a receiver and then transmits the phase-adjusted strobe signal to the receiver. The receiver receives the first and second strobe signals from the transmitter and receives the first group (byte of) data and the second group (byte of) data using the first and second strobe signals. The receiver does not require a phase-locked loop (PLL) or a delay-locked loop (DLL), thereby decreasing the circuit area and power consumption of the receiver.
    Type: Application
    Filed: December 19, 2006
    Publication date: September 6, 2007
    Inventors: Seung-Jun Bae, Seong-Jin Jang, Kwang-II Park, Sang-Woong Shin, Ho-Young Song
  • Publication number: 20070206429
    Abstract: A memory component having multiple delayed timing signals. Control information specifying a write operation and write data corresponding to the write operation are each received via a separate external signal path. A timing signal is received indicating that the write data is valid write data. Signals corresponding to multiple delayed versions of the timing signal are output for use in determining a propagation delay time between the control information and the write data.
    Type: Application
    Filed: May 8, 2007
    Publication date: September 6, 2007
    Inventor: Frederick Ware
  • Publication number: 20070206430
    Abstract: Disclosed is a semiconductor memory device, in which the refresh period of a fail cell or cells is set so as to be shorter than that of the normal cells, comprises a control circuit for exercising control in such a manner that, if, when refreshing the cell of a first address, generated responsive to a refresh command, with an input control signal being of a first value, a second address, differing as to the value of a predetermined bit from the first address, is determined to correspond to a fail cell, based on the information ore-programmed in a refresh redundant ROM, the cell of the second address is refreshed, and also in such a manner that, if, with the input control signal of a second value, the second address, differing as to the value of a predetermined bit from the first address, is determined to correspond to a fail cell, based on the predetermined information, only the cell of the second address is refreshed, without refreshing the cell of the first address, generated responsive to the refresh comma
    Type: Application
    Filed: May 11, 2007
    Publication date: September 6, 2007
    Applicant: ELPIDA MEMORY, INC.
    Inventor: Yasuhiro TAKAI
  • Publication number: 20070206431
    Abstract: According to the present invention, a memory circuit requiring refresh operations a first circuit which receives a command in synchronization with a clock signal, and which generates a first internal command internally and a second circuit which generates a second internal command, e.g., a refresh command, internally in a prescribed refresh cycle. And an internal circuit, according to said first internal command, executes corresponding control through clock-synchronous operations, and when said refresh command is issued, sequentially executes control corresponding to the refresh command and control corresponding to said first internal command through clock-asynchronous operations. According to the present invention, when a refresh timing signal is generated, the refresh operation can be interrupted among the external command operations.
    Type: Application
    Filed: April 27, 2007
    Publication date: September 6, 2007
    Inventor: Yasurou Matsuzaki
  • Publication number: 20070206432
    Abstract: A data processing apparatus supplied a first voltage from outside, includes a CPU, a first voltage generating circuit, a second voltage generating circuit, a clock generating circuit, and, a nonvolatile memory which can be accessed by the CPU. The first voltage generating circuit generates a second voltage, a voltage level of which is lower than that of the first voltage. The clock generating circuit is supplied the second voltage from the first voltage generating circuit and generates a clock signal, and the second voltage generating circuit is supplied the second voltage from the first voltage generating circuit and the clock signal from the clock generating circuit, and generates a second voltage, a voltage level of which is higher than that of the first voltage, for supplying to the nonvolatile memory.
    Type: Application
    Filed: May 4, 2007
    Publication date: September 6, 2007
    Inventors: Eiichi Ishikawa, Yasuyuki Saito, Masanao Sato, Naoki Yada, Kiyoshi Matsubara
  • Publication number: 20070206433
    Abstract: The present invention provides a ferroelectric memory capable of arbitrarily dividing a memory block into 1T/1C type and 2T/2C type areas. A memory cell array has 1T/1C type memory cells disposed in matrix form. An address storage unit stores therein threshold memory addresses for dividing the memory cell array into a first block for causing each memory cell to store one-bit data for each memory cell and a second block for causing each memory cell pair to store one-bit data for each memory cell pair. An address comparator compares column addresses corresponding to memory addresses with the threshold memory addresses and determines based on the result of comparison whether each of the memory addresses belongs to either of the first and second blocks.
    Type: Application
    Filed: February 28, 2007
    Publication date: September 6, 2007
    Inventor: Shinzo Sakuma
  • Publication number: 20070206434
    Abstract: A memory device is described that provides increased output data to help evaluate data errors from bit line coupling and floating gate coupling during a read operation. Multiple rows, or pages, of data are read to allow an internal or external decoder to evaluate memory cell data.
    Type: Application
    Filed: March 1, 2006
    Publication date: September 6, 2007
    Inventor: William Radke
  • Publication number: 20070206435
    Abstract: A mixing reactor for mixing efficiently streams of fluids of differing densities. In a preferred embodiment, one of the fluids is supercritical water, and the other is an aqueous salt solution. Thus, the reactor enables the production of metal oxide nanoparticles as a continuous process, without any risk of the reactor blocking due to the inefficient mixing inherent in existing reactor designs.
    Type: Application
    Filed: February 11, 2005
    Publication date: September 6, 2007
    Inventors: Edward Lester, Barry Azzopardi
  • Publication number: 20070206436
    Abstract: Embodiments of the present invention provide a system and method for continuous flow production of mixed fluids. The mixed fluids can comprise a mixture of different fluids or a mixture of the same fluid having different input properties such as temperature. In general, two streams of fluid of varying temperature are supplied to a mixer. The flow rate of each of the input fluids can be regulated to produce a mixed fluid at a desired flow rate and temperature. As an example, mass flow controllers can regulate the flow rates of a hot and cold stream of de-ionized water to produce a stream of de-ionized water at a desired flow rate and temperature.
    Type: Application
    Filed: March 22, 2006
    Publication date: September 6, 2007
    Inventors: J. Niermeyer, Robert McLoughlin, Joseph Smith
  • Publication number: 20070206437
    Abstract: There is described a modular cabinet for storing and driving stirrer cans containing liquids, the modular cabinet comprising a bottom stand on which at least one cabinet module is mounted, and a motion transmission system constituted by driver transmission elements and by driven transmission elements, each cabinet module being made up of two upright elements and a mechanical shelf for supporting and driving stirrer cans. The driver transmission elements of the motion transmission system are disposed outside said mechanical shelf and are independent thereof, and the mechanical shelf contains only the driven transmission elements.
    Type: Application
    Filed: June 16, 2004
    Publication date: September 6, 2007
    Inventors: Thierry Claude Garcia, Michel Lesimple, Jacky Gaulupeau
  • Publication number: 20070206438
    Abstract: Submerged jet nozzles are located at equal distances from the center of a tank containing a quantity of liquid and solids. Some of the nozzles induce flow partly inward and some induce flow partly outward, but all mixers are directed generally in the same circumferential direction. The inward directed nozzles are located close to the bottom of the tank and direct liquid across the central portion of the tank where solids tend to accumulate. Upper nozzles direct flow at least partly outward but in the same circumferential direction as the lower nozzles. The flow from the upper nozzles tends to reflect off the wall of the tank in addition to inducing a rotational flow of substantially the entire body of liquid in the tank.
    Type: Application
    Filed: February 28, 2007
    Publication date: September 6, 2007
    Applicant: Vaughan Co., Inc.
    Inventors: Glenn Dorsch, Richard Behnke
  • Publication number: 20070206439
    Abstract: A method and apparatus useful to determine the integrity of a cement bond log disposed in the annular space between a casing and a wellbore. The method and apparatus produce a transversely polarized shear wave and emit the wave through the casing and into the wellbore. The transversely polarized shear wave attenuates upon passage through the cement bond log. The integrity of the cement bond log can be determined through an analysis and evaluation of the attenuation results.
    Type: Application
    Filed: February 22, 2006
    Publication date: September 6, 2007
    Inventors: Joseph Barolak, Douglas Patterson, Alexei Bolshakov, Vladimir Dubinsky, Xiao Tang
  • Publication number: 20070206440
    Abstract: Thin flexible piezoelectric transducers are bonded to or imbedded into oilfield tubular members or structural members. The transducers may be used to telemeter data as acoustic waves through the members. By proper spacing of transducers and phasing of driving signals, the transmitted signals can be directionally enhanced or encoded to improve transmission efficiency. The transducers may be used for health monitoring of the tubular or structural members to detect cracks, delaminations, or other defects. The flexible transducers are very thin so that overall dimensions of tubular or structural members are essentially unchanged by incorporation of the transducers.
    Type: Application
    Filed: May 9, 2007
    Publication date: September 6, 2007
    Applicant: HALLIBURTON ENERGY SERVICES, INC.
    Inventors: Michael Fripp, Roger Schultz, John Rodgers
  • Publication number: 20070206441
    Abstract: An inverse flextensional projector exhibits a low frequency flexural mode and a higher frequency “breathing” mode to defeat stealthy targets and to conduct short and long range detection and tracking in littoral waters. The device has much broader bandwidth than conventional flextensional transducers, slotted cylinders and conventional cylinder transducers. The device has a low frequency capability similar to slotted cylinder projectors (SCP) but is broader band and does not suffer from the unsupported gap of SCP projectors. The invention has a more uniform radiation velocity than both SCP and flextensional transducers, making it much less susceptible to cavitation limitations.
    Type: Application
    Filed: November 8, 2005
    Publication date: September 6, 2007
    Inventor: Raymond Porzio
  • Publication number: 20070206442
    Abstract: Provided in a method of updating DST information in a wireless terminal, whereby the wireless terminal correctly and conveniently provides world time in consideration of the DST information. The method includes the steps of: transmitting, by a second server receiving DST information in real-time, the received DST information to the wireless terminal; and if the DST information is received, updating, by the wireless terminal, DST information of the wireless terminal based on the received DST information.
    Type: Application
    Filed: November 13, 2006
    Publication date: September 6, 2007
    Inventor: June-Yeob Kim
  • Publication number: 20070206443
    Abstract: A method and system for providing a user interface for a calendar planner application in a mobile phone. The method includes determining whether a string of digits is input, displaying the string of digits if at least one digit is input, counting the number of digits in the string, and displaying a month view in which a day indicated by the string of the digits is highlighted, the day being defined according to the number of the digits. The method and system for providing a user interface for a mobile phone according to the present invention allows a user to quickly navigate the calendar so as to reach an intended day or month by direct number key inputs, thus enhancing ease of use.
    Type: Application
    Filed: February 28, 2007
    Publication date: September 6, 2007
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Jae Hwang, Tae Kim
  • Publication number: 20070206444
    Abstract: Disclosed is a clock for use in a master/slave clock system, including a system and method for semi-automatically performing diagnostic self-tests on the status and operability of a plurality of components of one or more secondary clocks. The invention addresses a multitude of diagnostic and problem detection issues, including “no fault found.
    Type: Application
    Filed: May 7, 2007
    Publication date: September 6, 2007
    Applicant: The Sapling Company, Inc.
    Inventor: Ilan SHEMESH
  • Publication number: 20070206445
    Abstract: Disclosed is a clock for use in a master/slave clock system, including a system and method for semi-automatically performing diagnostic self-tests on the status and operability of a plurality of components of one or more secondary clocks. The invention addresses a multitude of diagnostic and problem detection issues, including “no fault found.
    Type: Application
    Filed: May 7, 2007
    Publication date: September 6, 2007
    Inventor: Ilan Shemesh
  • Publication number: 20070206446
    Abstract: Disclosed is a clock for use in a master/slave clock system, including a system and method for semi-automatically performing diagnostic self-tests on the status and operability of a plurality of components of one or more secondary clocks. The invention addresses a multitude of diagnostic and problem detection issues, including “no fault found.
    Type: Application
    Filed: May 7, 2007
    Publication date: September 6, 2007
    Inventor: Ilan SHEMESH
  • Publication number: 20070206447
    Abstract: A chronograph watch, which makes it possible to perform accurate zero-reset of a plurality of elapsed time display sections, and to reduce the number of components thus simplifying the structure, can be provided. Means for Solving the Problem The chronograph watch 1 according to the present invention includes an hour counting wheel 25, a second counting wheel 40, and a minute counting wheel 60 distant from each other in a planar direction, and is provided with a hammer 160 for substantially simultaneously and mechanically zero-resetting the hour counting wheel 25, the second counting wheel 40, and the minute counting wheel 60, the hammer 160 being composed of a hammer body 161 and a minute hammer 170.
    Type: Application
    Filed: March 2, 2007
    Publication date: September 6, 2007
    Applicant: Seiko Epson Corporation
    Inventors: Eiichi Hiraya, Kazunari Agesawa
  • Publication number: 20070206448
    Abstract: A holographic recording medium 10 is configured to have a recording layer 12 on which information can be recorded as holograms; and first and second heat generating layers 14A and 14B provided in a pair so as to sandwich the recording layer 12. Then, the first and second heat generating layers 14A and 14B are allowed to generate heat by being irradiated with a heat generating laser beam LB3 having a wavelength that is different from that of a signal beam LB1 or a reference beam LB2 for reproducing or recording information. The holographic recording medium and a method for recording and reproducing the same, and a recording and reproducing apparatus can compensate for shrinkage of the recording layer due to recording or variations in temperature, thereby allowing for reproduction of the holograms under optimum conditions.
    Type: Application
    Filed: April 1, 2005
    Publication date: September 6, 2007
    Applicant: TDK CORPORATION
    Inventors: Takuya Tsukagoshi, Tetsuro Mizushima, Jiro Yoshinari, Hideaki Miura
  • Publication number: 20070206449
    Abstract: Recording density is improved by performing anneal processing on an optical storage medium (4). Anneal management information (40) is recorded in the optical storage medium (4) without performing anneal processing, and is provided to a user. Anneal processing is performed and high density recording and reproducing is enabled by the effect of annealing on an area between recording tracks based on the choice of the user. Since initialization processing (anneal processing) by a storage medium manufacturer can be omitted, the medium can be provided at low price. Also a deep groove medium need not be used because of the effect of annealing, thereby the manufacturing of a substrate used for a medium is easy. It is preferable that advertisement information is recorded in a pit section (4-1) as content information, so that the content can be reproduced automatically during anneal processing, and the medium price can be reduced due to advertisement fees.
    Type: Application
    Filed: May 7, 2007
    Publication date: September 6, 2007
    Applicant: Fujitsu Limited
    Inventor: Nobuhide Aoyama
  • Publication number: 20070206450
    Abstract: An optical pickup for disc device has elastic wires 15 reliably connected with a dumping gel box 6. Guide members 18 are provided integrally with the dumping gel box 6 along bottom edges of side surface 6 as of the dumping gel box 6 while portions of the guide members 18 opposing to the grooves 11 are cut out to form air outlet holes 19 for the communication of the grooves 11 with outside atmosphere. The connection wiring 13 in the form of a printed circuit film or strip is folded to have a U-shape and attached to a back surface 6b and the both side surfaces 6a of the dumping gel box 6 and both end portions 13a of the connection wiring 13 are tentatively adhered to the both side surfaces 6a of the dumping gel box 6 by quick drying adhesive 20. Thermosetting adhesive 14 is filled in the grooves 11 and heated to be set and finally adhere the both end portions 13a of the connection wiring 13 to the both side surfaces 6a of the dumping gel box 6.
    Type: Application
    Filed: February 28, 2007
    Publication date: September 6, 2007
    Applicant: FUNAI Electric Co., Ltd.
    Inventor: Ryotaro Nakagawa
  • Publication number: 20070206451
    Abstract: An optical pickup for recording or reproducing an information signal in an optical disc includes a light source for emitting a light beam toward the optical disc, an objective lens for focusing the light beam emitted from the light source onto a recording surface of the optical disc, and a photodetector for receiving the light beam reflected by the recording surface of the optical disc and outputting a signal corresponding to an intensity of the received light beam. A spot of the light beam received by the photodetector is asymmetric in both a radial direction and a tangential direction of the optical disc. A lens shift signal for the objective lens is detected by a controller on the basis of the signal output from the photodetector, the controller controlling the objective lens to follow the optical disc.
    Type: Application
    Filed: February 23, 2007
    Publication date: September 6, 2007
    Applicant: Sony Corporation
    Inventors: Takashi Kobayashi, Katsuhiro Seo, Yoshiki Okamoto, Noriyuki Kato
  • Publication number: 20070206452
    Abstract: A method and apparatus of compensating for misalignment in an optical disk device includes detecting a plurality of focus error signals, comparing the focus error signals, and shifting a position of an optical lens based on the comparison. Alternatively, a one or more of the focus error signals may be compared to a reference signal and a corresponding shift may be performed. When the lens is shifted, an optical spot corresponding to an optical beam reflected from a disk surface is corrected to a position which reduces or eliminates misalignment errors attributable to one or more elements of the pickup.
    Type: Application
    Filed: February 2, 2007
    Publication date: September 6, 2007
    Inventor: Kyung Kim
  • Publication number: 20070206453
    Abstract: An optical data/information storage medium comprises a disk-shaped substrate with a data/information encoded surface having a plurality of concentric, radially spaced-apart data tracks formed therein, each of said data tracks comprising a plurality of spaced-apart, nano-dimensioned data pits or marks with different angular orientations with respect to a down-track direction of each data track. Each of the data tracks further comprises a plurality of spaced-apart, nano-dimensioned servo tracking pits or marks with a preselected angular orientation with respect to the down-track direction for use in obtaining radial error (RE) signals of a read-out head by means of radial push-pull (PP) or differential phase detection (DPD) tracking.
    Type: Application
    Filed: March 3, 2006
    Publication date: September 6, 2007
    Inventors: David Kuo, Neil Deeman, Shih-Fu Lee, Koichi Wago
  • Publication number: 20070206454
    Abstract: There is provided an optical disc recording/reproduction device in which a tracking drive offset amount (21) is given to a tracking drive signal (19), a beam spot position irradiated on a photo-detector (7) is shifted by a servo controller (18), and by using an optical disc on which pits are recorded or not recorded, a CPU (16) detects some or all of the divided wobble signal balance, a lens error signal, a wobble jitter value, and an AYIP read error count. The CPU (16) causes a memory (17) to store at least one of the tracking drive offset amounts at which the wobble signal balance is uniform, the lens error signal reference voltage and wobble jitter value are minimum, and the AYIP read error count as well as the respective tracking drive offset amounts. Furthermore, the CPU (16) controls the beam spot position by adding the tracking drive offset amount read out from the memory (17) to the tracking drive signal (19) when performing recording or reproducing to/from the optical disc.
    Type: Application
    Filed: April 8, 2005
    Publication date: September 6, 2007
    Applicant: matsushita Electric Industrial
    Inventor: Naoki Yumiyama
  • Publication number: 20070206455
    Abstract: An optical device includes a substrate, an optical element, a translucent component, a plurality of first terminals and a sealant. The sealant is located lower than the top surface of the translucent component. The top surface of the translucent component is exposed out of the sealant, while the side surface of the translucent component is covered with the sealant.
    Type: Application
    Filed: February 21, 2007
    Publication date: September 6, 2007
    Inventors: Masanori Minamio, Yutaka Harada, Kiyokazu Itoi, Toshiyuki Fukuda
  • Publication number: 20070206456
    Abstract: Methods and apparatus to compensate for low-frequency tracking errors in motion control of a movable stage are provided. By recording tracking errors during earlier traversal of a trajectory, filtering, and applying those recorded tracking errors to subsequent traversals of the same or a similar trajectory, tracking errors of the subsequent traversals may be significantly reduced.
    Type: Application
    Filed: September 29, 2006
    Publication date: September 6, 2007
    Inventors: Jeffrey Sullivan, Benyamin Buller, Eugene Mirro, William Eckes
  • Publication number: 20070206457
    Abstract: An optical disk apparatus includes: a servo controller, operable to carry out a servo control of tracking of an optical pickup based on a tracking error signal; a TE balance regulator, operable to detect a TE balance correction value for equalizing, with a reference voltage, a central voltage of the tracking error signal when a beam spot of the optical pickup crosses a track; a detrack regulator, operable to detect a detrack correction value for causing signal quality of an output of the optical pickup to be the highest; and a TE offset corrector, operable to set an offset voltage, which is to be added to the tracking error signal, to be the TE balance correction value when a difference between the TE balance correction value and the detrack correction value is smaller than a predetermined value, and to set the offset voltage to be a value between the TE balance correction value and the detrack correction value when the difference is greater than the predetermined value.
    Type: Application
    Filed: February 23, 2007
    Publication date: September 6, 2007
    Inventor: Futoshi Takeda
  • Publication number: 20070206458
    Abstract: An optical disk apparatus includes: a servo control unit, operable to execute a servo control of focusing based on a focus error signal and to execute a servo control of tracking based on a tracking error signal; a detrack regulating unit, operable to execute a detrack regulation for setting an offset voltage, which is to be added to the tracking error signal, to be a voltage for giving the highest signal quality of an output of an optical pickup; and a defocus regulating unit, operable to execute a defocus regulation for setting an offset voltage, which is to be added to the focus error signal, to be a voltage for giving the highest signal quality of the output of the optical pickup. The defocus regulation is executed in a state in which the servo control of the focusing and the servo control of the tracking are executed. The defocus regulation is executed after the detrack regulation is executed, in the state in which the servo control of the focusing and the servo control of the tracking are executed.
    Type: Application
    Filed: February 28, 2007
    Publication date: September 6, 2007
    Inventor: Futoshi Takeda
  • Publication number: 20070206459
    Abstract: An optical disc apparatus includes a spherical aberration correction element for correcting spherical aberration and a preadjustment unit for obtaining setting of a spherical aberration correction element for correcting spherical aberration appropriately in a case where a focus position of a light beam emitted from a light source is adjusted on each of recording layers of an optical recording medium every time when the optical recording medium is loaded to the apparatus.
    Type: Application
    Filed: March 1, 2007
    Publication date: September 6, 2007
    Inventors: Atsushi Iwamoto, Shinya Shimizu, Tsuyoshi Eiza, Tetsuya Shihara
  • Publication number: 20070206460
    Abstract: An optical element feeding device driving method and an optical disk apparatus capable of detecting biting in a stepping motor and conducting restoration. The optical disk apparatus includes an optical element feeding device including a movable frame for supporting a spherical aberration correcting lens to move the lens in optical axis direction, a spring for applying force to the frame in the direction, a sensor for detecting a lens reference position, a stepping motor, and a lead screw and a nut for converting motor rotation into the direction, a motor driving circuit, a decision circuit for judging abnormality when an output of the sensor does not change even if the driving circuit outputs a driving signal to the motor after reference position detection, and a changeover circuit for lowering a driving frequency than in ordinary operation, based on an abnormality signal.
    Type: Application
    Filed: February 28, 2007
    Publication date: September 6, 2007
    Inventors: Seiji Ono, Naomitsu Kuroda, Eiji Okubo, Yasushi Horie
  • Publication number: 20070206461
    Abstract: An objective lens actuator is provided with an objective lens holder and a tilting coil that drives the objective lens holder in a tilting direction. The tilting coil is inclined with respect to the horizontal direction, so that a rotation center when the objective lens holder is driven in the tilting direction, is located on extension lines of sides that effectively contribute to driving the objective lens holder in the tilting direction by interaction between a magnetic field formed by a magnet and current that is supplied and flows in the coil among sides of the tilting coil.
    Type: Application
    Filed: March 1, 2007
    Publication date: September 6, 2007
    Inventors: Ken Nishioka, Hitoshi Fujii
  • Publication number: 20070206462
    Abstract: A beam spot position control device, for controlling multiple beam spot positions irradiated onto an optical recording medium so as to be disposed linearly, includes a light detecting unit for detecting the amount of return light for each of a plurality of beam spots disposed linearly, a tracking control unit for performing tracking control based on tracking error signals of at least one of the beam spots detected with the optical detecting unit, and a rotation control unit for rotating the plurality of beam spots which are disposed linearly, based on the DC offset amount of the tracking error signals of at least two of the beam spots detected with the optical detecting unit.
    Type: Application
    Filed: March 1, 2007
    Publication date: September 6, 2007
    Inventor: Tsutomu Ishimoto
  • Publication number: 20070206463
    Abstract: An information recoding medium having a substrate (32) and a recoding layer (30) whose optical property is changed by being irradiated by a laser beam to display or erase a visible display pattern.
    Type: Application
    Filed: March 10, 2005
    Publication date: September 6, 2007
    Inventor: Kazuo Kuroda
  • Publication number: 20070206464
    Abstract: An apparatus for selecting a target write strategy from a plurality of write strategies is disclosed. The apparatus includes a clock module, for monitoring time taken to write data to an optical disc and outputting a clock parameter; a first look-up table module comprising a plurality of write strategy control values corresponding to the write strategies respectively; a determination circuit, coupled to the first look-up table module and the clock module, for selectively outputting a target write strategy control value stored in the first look-up table module according to the clock parameter; and a write strategy circuit, coupled to the determination circuit, for generating the target write strategy based on the target write strategy control value outputted from the determination circuit.
    Type: Application
    Filed: March 1, 2006
    Publication date: September 6, 2007
    Inventor: Jen-Hao Chang
  • Publication number: 20070206465
    Abstract: In order to perform simultaneous recording and reproduction, a large capacity of buffer memories were required. In addition, it was difficult to record data while reproducing data which was recorded by a different apparatus. The present invention has an objective of providing an information recording medium, a simultaneous recording and reproduction method, and an information recording and reproduction apparatus which guarantee simultaneous recording and reproduction. The simultaneous recording and reproduction is guaranteed by reproducing data recorded in an area having at least a minimum size fulfilling the simultaneous recording and reproduction condition which allows for four access operations, recording data in an area having at least the same size, and performing reproduction and recording alternately by switching reproduction to recording when the data amount in the reproduction buffer becomes full and switching recording to reproduction when the data amount in the recording buffer becomes empty.
    Type: Application
    Filed: May 10, 2007
    Publication date: September 6, 2007
    Inventors: Yoshiho GOTOH, Miyuki Sasaki, Kaoru Murase, Tatsushi Bannai
  • Publication number: 20070206466
    Abstract: An optimal power calibration process in which an OPC process is performed on the outer OPC area (12) of an optical disc (10) at a plurality of write speeds a, b and c, and an OPC process is also performed on the inner OPC area (14) at the write speed thereof. The optimal powers (and strategies) obtained by each OPC process for each speed is then used to create a function matching writing power level to speed. In order to create an accurate optimum laser power for all radii, two OPC power factors can be created: a media variation power factor a speed power factor In order to create the media variation power factor, Nx1 OPC information obtained from both the innermost and the outermost radii of the optical disc are used; whereas in order to create the speed power factor, the Nx1, Nx2, . . . , Nxm information obtained from the outermost radius of the disc is used. Using the above-mentioned two power factors, more accurate control of the required laser power for all radii can be achieved.
    Type: Application
    Filed: March 11, 2005
    Publication date: September 6, 2007
    Applicant: KONINKLIJKE PHILIPS ELECTRONICS, N.V.
    Inventors: Tony Van Endert, James McCormack
  • Publication number: 20070206467
    Abstract: A method for discriminating a disc includes the steps of: detecting that the disc is inserted into an optical drive; starting a roller motor to load the disc; counting the number of operating sensors; counting time of a disk loading procedure; judging whether all of the sensors operate to determine the disc is a primary disc; judging whether the number of the operating sensors decreases to determine the disc is a secondary disc; determining whether a disc loading time exceeds a default time by comparison; and ejecting the disc. If the number of operating sensors is kept the same as the original one and the time of the loading procedure does not exceed a default value, the method goes back to the judging steps to discriminate the disc repeatedly. If the disc loading time exceeds the default time, the disc is ejected.
    Type: Application
    Filed: November 21, 2006
    Publication date: September 6, 2007
    Applicant: QUANTA STORAGE INC.
    Inventors: Xiang-Sheng Li, Wen-Kuan Peng, Chien-Chang Huang
  • Publication number: 20070206468
    Abstract: An optical disk recording/reproduction device and a disk determination method for an optical disk recording/reproduction device. The disk determination method compares with a threshold value a drive value when the arrival of a focus point at a recording surface is detected during a focus search relative to an optical disk (301) or a drive value during an on-focus state. By this, two or more kinds of optical disks having different substrate thicknesses are determined. The threshold value is determined based on a drive value during an on-focus state when one or more kinds of disks out of the two or more kinds of optical disks become reproducible.
    Type: Application
    Filed: July 14, 2005
    Publication date: September 6, 2007
    Applicant: Matsushita Electric Industrial Co., Ltd.
    Inventors: Yorio Takahashi, Makoto Aitani
  • Publication number: 20070206469
    Abstract: An optical scanning device for scanning optical record carriers having information layers at different information layer depths within the carrier, the optical record carriers including a first optical record carrier (3?) having an information layer (2?) at a first information layer depth d1, a second optical record carrier (3?) having an information layer (2?) at a second information layer depth d2 and a third optical record carrier (3??) having an information layer (2??) at a third information layer depth d3, wherein d3<d2<d1. The scanning device includes a radiation source system (7) for producing first, second and third radiation beams (4?; 4?; 4??), for scanning said first, second and third record carriers (3?; 3?; 3??), respectively, the device including a diffraction structure (48) introducing first, second and third, different, wavefront modifications into at least part of the first, second and third, radiation beams, respectively.
    Type: Application
    Filed: March 16, 2005
    Publication date: September 6, 2007
    Applicant: KONINKLIJKE PHILIPS ELECTRONICS, N.V.
    Inventors: Teunis Tukker, Joris Vrehen
  • Publication number: 20070206470
    Abstract: A method of and drive for recording medium defect management, and a defect managed recording medium. The defect management method includes: writing first state information that specifies that an update cycle of a temporary defect management structure (TDMS) is open when updating of the TDMS begins, the TDMS containing information regarding temporary defect management; updating the TDMS when data is written to or read from the information storage medium; and writing second state information that specifies that the update cycle of the TDMS is closed, when the updating of the TDMS is completed.
    Type: Application
    Filed: May 7, 2007
    Publication date: September 6, 2007
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Sung-Hee HWANG, Jung-wan Ko
  • Publication number: 20070206471
    Abstract: A method of and drive for recording medium defect management, and a defect managed recording medium. The defect management method includes: writing first state information that specifies that an update cycle of a temporary defect management structure (TDMS) is open when updating of the TDMS begins, the TDMS containing information regarding temporary defect management; updating the TDMS when data is written to or read from the information storage medium; and writing second state information that specifies that the update cycle of the TDMS is closed, when the updating of the TDMS is completed.
    Type: Application
    Filed: May 9, 2007
    Publication date: September 6, 2007
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Sung-hee Hwang, Jung-wan Ko
  • Publication number: 20070206472
    Abstract: A link writing method for a recordable or rewritable compact disk includes recording a writing interruption address and enabling a succeeding writing process after the writing interruption. Enabling a succeeding writing process includes searching the linking area and enabling a start writing signal and activating a laser power. The method can link a succeeding writing area with a previously written interrupted area with sufficient accuracy to allow the data frame to be successfully processed by error correction within the host drive. The linking area may be positioned by counting the values of the interrupted block, the interrupted data frame, and the interrupted bit count or by detecting a blank area. Other techniques for positioning the linking area include detecting an unwritten area having a length greater than a maximum or writing a characteristic pattern after an interruption.
    Type: Application
    Filed: May 4, 2007
    Publication date: September 6, 2007
    Applicant: MEDIATEK, INC.
    Inventors: Jyh-Shin Pan, Chao-Long Tsai