Converting An Analog Signal To Digital Form For Recording; Reproducing And Reconverting Patents (Class 360/32)
  • Patent number: 10755741
    Abstract: A magnetic tape apparatus includes a magnetic tape, a reading element unit and an extraction unit, in which a coefficient of friction measured regarding a base portion of a surface of the magnetic layer is equal to or smaller than 0.35, the reading element unit includes a plurality of reading elements each of which reads data by a linear scanning method from a specific track region including a reading target track in a track region included in the magnetic tape, and the extraction unit performs a waveform equalization process according to a deviation amount between positions of the magnetic tape and the reading element unit, with respect to each reading result for each reading element, to extract data derived from the reading target track from the reading result.
    Type: Grant
    Filed: June 28, 2019
    Date of Patent: August 25, 2020
    Assignee: FUJIFILM Corporation
    Inventors: Eiki Ozawa, Norihito Kasada, Atsushi Musha
  • Patent number: 10661459
    Abstract: The present invention relates to a hair clipping device (10) comprising: a housing (14), a cutting assembly (16) for clipping hairs, a comb attachment (12) which is attachable to the housing (14), a drive unit (38) for moving the comb attachment (12) relative to the cutting assembly (16) between different comb positions in order to set a hair cut-length, a control unit (36) for controlling the drive unit (38), a memory unit (40), and a user interface (34).
    Type: Grant
    Filed: June 12, 2015
    Date of Patent: May 26, 2020
    Assignee: KONINKLIJKE PHILIPS N.V.
    Inventors: Arjan Sander Vonk, Julien Philippe Latul
  • Patent number: 10509577
    Abstract: A method for execution by a processing system of a dispersed storage and task (DST) processing unit comprises: receiving one or more encoded data slices for storage; storing the one or more encoded data slices in one or more memories of a set of memories; determining a level redundancy for the one or more encoded data slices; generating redundancy information for the one or more encoded data slices in accordance with the level redundancy; storing the redundancy information in another one or more memories of the set of memories; determining to update the level of redundancy; determining an updated level of redundancy based on one or more of a storage utilization level and a storage reliability level; updating the redundancy information based on the updated level of redundancy and updating storage of the redundancy information based on the updated redundancy information.
    Type: Grant
    Filed: July 11, 2018
    Date of Patent: December 17, 2019
    Assignee: PURE STORAGE, INC.
    Inventors: Ilya Volvovski, Bruno H. Cabral, Manish Motwani, Thomas D. Cocagne, Timothy W. Markison, Gary W. Grube, Wesley B. Leggette, Jason K. Resch, Michael Colin Storm, Greg R. Dhuse, Yogesh R. Vedpathak, Ravi V. Khadiwala
  • Patent number: 10466298
    Abstract: A magnetic field sensor comprises at least one magnetic field sensing element configured to generate a measured magnetic field signal responsive to an external magnetic field; a diagnostic circuit configured to generate a diagnostic signal, wherein the diagnostic signal is not dependent on a measured magnetic field; a signal path comprising an amplifier and an analog-to-digital converter for processing the measured magnetic field signal to generate a sensor output signal indicative of the external magnetic field during a measured time period and for processing the diagnostic signal during a diagnostic time period; and a switch coupled to receive the measured magnetic field signal and the diagnostic signal and direct the measured magnetic field signal to the signal path during the measured time period and direct the diagnostic signal to the signal path during the diagnostic time period.
    Type: Grant
    Filed: September 20, 2017
    Date of Patent: November 5, 2019
    Assignee: Allegro MicroSystems, LLC
    Inventors: Virag V. Chaware, Aaron Cook, Craig S. Petrie
  • Patent number: 10451671
    Abstract: Methods and apparatus for processing a signal comprise at least one circuit configured to generate a measured signal during a measured time period and a reference signal during a reference time period. Also included is at least one dual- or multi-path analog-to-digital converter comprising at least a first processing circuit configured to process the measured signal, at least a second processing circuit configured to process the reference signal, and a third processing circuit configured to process both the measured signal and the reference signal.
    Type: Grant
    Filed: September 27, 2017
    Date of Patent: October 22, 2019
    Assignee: Allegro MicroSystems, LLC
    Inventors: Craig S. Petrie, Bryan Cadugan
  • Patent number: 10403253
    Abstract: There are provided portable recording/reproducing apparatus and a recording/reproducing system that have a wireless LAN function capable of setting sound record parameters and playback parameters by remote operation. The recording/reproducing apparatus has a Wi-Fi module and establishes Wi-Fi connection with a smartphone, and the like. Having established the Wi-Fi connection with the smartphone, the recording/reproducing apparatus receives setting values of the sound record parameters and those of the playback parameters from the smartphone, and reproduces the audio signal by use of the setting values. The smartphone acquires the setting values of the sound record parameters and the playback parameters by way of the Internet, and transmits the setting values to the recording/reproducing apparatus.
    Type: Grant
    Filed: December 16, 2015
    Date of Patent: September 3, 2019
    Assignee: TEAC CORPORATION
    Inventors: Shigeyuki Adachi, Takeshi Ushikubo
  • Patent number: 10375390
    Abstract: An image encoding apparatus is presented. A differential quantization parameter is generated by subtracting a quantization parameter predictor from a quantization parameter, and is entropy-coded. If two or more quantization parameters are available among a left quantization parameter, an above quantization parameter and a previous quantization parameter of a current coding unit, the quantization parameter predictor is generated using two available quantization parameters determined according a predetermined order, and if only one quantization parameter is available, the available quantization parameter is set as the quantization parameter predictor. A transform type for inversely transforming the residual signals is selected among a discrete cosine transform (DCT)-based integer transform and a discrete sign transform (DST)-based integer transform based on a prediction mode and a size of a transform unit.
    Type: Grant
    Filed: October 24, 2016
    Date of Patent: August 6, 2019
    Assignee: INFOBRIDGE PTE. LTD.
    Inventors: Soo Mi Oh, Moonock Yang
  • Patent number: 10298266
    Abstract: Embodiments of the present invention provide methods, systems, and computer program products for using a storlet erasure code object storage architecture for image processing. In one embodiment, an object is received, the object being represented as erasure coded bits. A storage location associated with the erasure coded bits is identified. A virtual machine (VM) is invoked, where the VM is configured to compute a modification to the erasure coded bits and replace the original erasure coded bits with the modified erasure coded bits.
    Type: Grant
    Filed: June 15, 2016
    Date of Patent: May 21, 2019
    Assignee: International Business Machines Corporation
    Inventors: Pradipta K. Banerjee, Sasikanth Eda, Sandeep R. Patil, Subhojit Roy
  • Patent number: 10250657
    Abstract: Disclosed are various embodiments for a streaming media application. Media blocks of a media stream may be buffered at a quality level determined by an amount of available bandwidth. When excess bandwidth is made available, a higher quality replacement for a buffered media block may be obtained concurrent to streaming the media blocks. The replacement media block then replaces the lower quality media block in the buffer such that the higher quality replacement media block is rendered.
    Type: Grant
    Filed: January 26, 2017
    Date of Patent: April 2, 2019
    Assignee: Amazon Technologies, Inc.
    Inventors: Manuel Jose Dominic Caballero, Mark Edwin Hewis
  • Patent number: 10181312
    Abstract: An acoustic system comprises an output unit, a communication unit, a first output control unit, and a second output control unit. The output unit is configured to be capable of outputting a sound and an image. The communication unit is configured to be capable of communicating with an external device. The first output control unit is configured to receive, from a communication device that transmits a reproduction signal for acoustic data, the reproduction signal via the communication unit and to cause the output unit to output a sound based on the reproduction signal, to thereby perform reproduction of a series of sounds represented by the acoustic data. The second output control unit is configured to cause the output unit to output, as the image, a word corresponding to the sound outputted by the output unit among the series of sounds represented by the acoustic data.
    Type: Grant
    Filed: September 30, 2014
    Date of Patent: January 15, 2019
    Assignee: LYRIC ARTS INC.
    Inventor: Jin Saito
  • Patent number: 10152232
    Abstract: Described embodiments provide methods and systems for tracking performance of a storage system including one or more system resources. One or more threads may be generated to operate the storage system. Each of the one or more threads may be associated with one of a plurality of tasks of the storage system. When an operating state of one of the one or more threads is changed, one or more performance counters of the storage system may be updated. A performance snapshot may be generated by capturing a state of the tasks associated with the threads and the performance counters.
    Type: Grant
    Filed: June 29, 2016
    Date of Patent: December 11, 2018
    Assignee: EMC IP HOLDING COMPANY LLC
    Inventors: Vladimir Kleiner, Kirill Shoikhet, Amir Miron, Anton Kucherov, Alexandr Veprinsky
  • Patent number: 10089250
    Abstract: The present disclosure includes methods, devices, and systems for state change in systems having devices coupled in a chained configuration. A number of embodiments include a host and a number of devices coupled to the host in a chained configuration. The chained configuration includes at least one device that is not directly coupled to the host. The at least one device that is not directly coupled to the host is configured to change from a first communication state to a second communication state responsive to receipt of a command from the host.
    Type: Grant
    Filed: January 11, 2016
    Date of Patent: October 2, 2018
    Assignee: Micron Technology, Inc.
    Inventors: William H. Radke, Victor Y. Tsai, James Cooke, Neal A. Galbo, Peter Feeley
  • Patent number: 10043526
    Abstract: The present invention relates to transposing signals in time and/or frequency and in particular to coding of audio signals. More particular, the present invention relates to high frequency reconstruction (HFR) methods including a frequency domain harmonic transposer. A method and system for generating a transposed output signal from an input signal using a transposition factor T is described. The system comprises an analysis window of length La, extracting a frame of the input signal, and an analysis transformation unit of order M transforming the samples into M complex coefficients. M is a function of the transposition factor T. The system further comprises a nonlinear processing unit altering the phase of the complex coefficients by using the transposition factor T, a synthesis transformation unit of order M transforming the altered coefficients into M altered samples, and a synthesis window of length Ls, generating a frame of the output signal.
    Type: Grant
    Filed: October 13, 2015
    Date of Patent: August 7, 2018
    Assignee: Dolby International AB
    Inventors: Per Ekstrand, Lars Villemoes
  • Patent number: 10020021
    Abstract: In one embodiment, a system includes one or more processors and logic integrated with and/or executable by the one or more processors. The logic is configured to cause at least one of the processors to detect positive peak amplitudes and negative peak amplitudes of an unequalized readback signal that exhibits imperfect or bi-modal waveform peaks using a peak tracking threshold module positioned at an input to an equalizer. Also, the logic is configured to cause the at least one of the processors to track the positive peak amplitudes and the negative peak amplitudes of the unequalized readback signal in a record. Moreover, the logic is configured to cause the at least one of the processors to provide, as an input to an asymmetry compensator, the record of the peak amplitudes and the negative peak amplitudes determined from the unequalized readback signal.
    Type: Grant
    Filed: July 21, 2017
    Date of Patent: July 10, 2018
    Assignee: International Business Machines Corporation
    Inventor: Robert A. Hutchins
  • Patent number: 10009574
    Abstract: In one embodiment, a magnetic tape device includes a read control configured to sequentially read records included in data sets from a tape medium into a buffer, and send the records included in the data sets to a host in response to determining that there is no C2 error during reading of the data sets. The read control is also configured to skip a predetermined error recovery process in accordance with a video special mode in response to detecting a C2 error during reading of the data sets.
    Type: Grant
    Filed: December 16, 2015
    Date of Patent: June 26, 2018
    Assignee: International Business Machines Corporation
    Inventors: Atsushi Abe, Setsuko Masuda, Yumiko Ohta, Terue Watanabe
  • Patent number: 9984078
    Abstract: A method for writing a file from an application of a host onto a tape includes sequentially receiving records forming the file from the application, adding a predetermined number of segments of dummy data (dummy records) subsequently to the plurality of records forming the file such that the records of the file and records of a subsequent file are not included in the same data set, interposing the dummy records between a final record of the file and a head record of the subsequent (next) file, to thereby construct at least one data set that is adjacent to one data set and does not include the records of the file, and writing a data set including the records of the file, a data set (dummy data set) including the final record of the file and the dummy records, and a data set including the subsequent file, onto the tape.
    Type: Grant
    Filed: August 21, 2017
    Date of Patent: May 29, 2018
    Assignee: International Business Machines Corporation
    Inventors: Masayuki Iwanaga, Yumiko Ohta, Yutaka Oishi
  • Patent number: 9965626
    Abstract: Technologies are generally described for systems, devices and methods effective to detect a potential attack on a memory of a memory device. In some examples, a processor may send a request to the memory device. The request may include a request for information that relates to memory writes to the memory of the memory device. The processor may receive a response from the memory device. The response may include the information that relates to the memory writes. The processor may determine, based on the response, an amount of memory of the memory device written to during an interval of time. The processor may detect the potential attack based on the amount of memory written to and based on the interval of time. The processor may then generate an alert based on the detection of the potential attack.
    Type: Grant
    Filed: July 18, 2013
    Date of Patent: May 8, 2018
    Assignee: EMPIRE TECHNOLOGY DEVELOPMENT LLC
    Inventors: Mordehai Margalit, Shmuel Ur, David Hirshberg, Shimon Gruper
  • Patent number: 9946597
    Abstract: Electromagnetic compatibility (EMC) of a system-on-a-chip (SoC) is enhanced by encoding at least a subset of control signals before the control signals are transmitted over a bus (e.g., a bus internal to a SoC) from a controller to an embedded nonvolatile memory (NVM). The error-detection code used causes an EMC event to introduce errors into the transmitted codewords with relatively high probability. In response to an error being detected in the transmitted codeword, a set of safeguarding operations are performed to prevent the data stored in the NVM from being uncontrollably changed.
    Type: Grant
    Filed: September 4, 2016
    Date of Patent: April 17, 2018
    Assignee: NXP USA, INC.
    Inventors: Zhihong Cheng, Yin Guo
  • Patent number: 9875809
    Abstract: A memory device includes a controller, a multiplexer, a deserializer, a data modifier, a memory cell array and an error detector. The controller is configured to generate signals in response to an address signal and a command signal. The multiplexer is configured to output a clock signal as internal data signals when the test mode signal is activated. The deserializer is configured to deserialize N bit values included in the internal data signals to generate deserialized signals. The data modifier is configured to invert the deserialized signals to generate bit line signals in response to an inversion control signal and the data modifying signals. The memory cell array is configured to store the bit line signals to memory cells corresponding to the address signal. The error detector is configured to determine if an error exists in signals read from the memory cells and to output an error detecting signal.
    Type: Grant
    Filed: August 1, 2016
    Date of Patent: January 23, 2018
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventor: Won-Hwa Shin
  • Patent number: 9747167
    Abstract: System and method for persistency free management of media storage including, during routine operation: continuously receiving streams of data; storing the streams of data in corresponding files in a non-volatile storage; including in the files a tag indicating whether the file is categorized as active or inactive; and when recovering from a crash: generating a list of active files by scanning the files and identifying active files. System and method for recovering after controller crash may include: during routine operation: continuously handling by the controller processes related to media metadata, by sending commands to a controlled device; sending state parameters related to the processes to the controlled device; and when recovering from the crash: retrieving the state parameters from the controlled device.
    Type: Grant
    Filed: February 27, 2014
    Date of Patent: August 29, 2017
    Assignee: NICE LTD.
    Inventors: Tal Zur, Efim Kolodizner
  • Patent number: 9674611
    Abstract: An information processor includes a generator that is adapted to generate original sound data indicating an original sound as a basis for a processed sound to be heard by a user and a parameter indicating a content of processing on the original sound data, an original sound data output section that is adapted to output the original sound data generated by the generator from any channel of a plurality of channels, and a control signal output section that is adapted to output a control signal including the parameter and a correspondence relationship between the parameter and the channel for the original sound data to be processed by means of the parameter.
    Type: Grant
    Filed: August 30, 2011
    Date of Patent: June 6, 2017
    Assignees: YAMAHA CORPORATION, KABUSHIKI KAISHA SQUARE ENIX
    Inventors: Morishige Fujisawa, Noriyuki Ohashi, Hirochika Maegaki, Yoshinori Tsuchida, Tomohiro Yajima
  • Patent number: 9672859
    Abstract: The present disclosure relates to a reproduction apparatus. The reproduction apparatus may comprise an optical filter and electric filters. The optical filter may be configured to provide electrical signals corresponding to regions of an optical beam returning from an optical medium, the optical beam being incident on the optical filter, the regions of the optical beam corresponding to different bands in a line density direction and/or a track density direction. The electric filters may be configured to provide outputs based, at least in part, on the electrical signals provided by the optical filter, wherein the reproduction apparatus is configured to obtain a reproduced signal by combining the outputs of the electric filters.
    Type: Grant
    Filed: July 30, 2014
    Date of Patent: June 6, 2017
    Assignee: Sony Corporation
    Inventors: Noriaki Nishi, Kimihiro Saito, Junya Shiraishi, Yutaka Tentaku, Nobuhiko Ando
  • Patent number: 9654891
    Abstract: A media rendering system includes a controller device and a media rendering device in communication via a communication network. The media rendering device is configured to render a media recording. The controller device includes a sensor configured to detect and receive an audio portion of the rendered media recording. The controller device is configured to identify the rendered media recording, and to determine a location of the controller device within a proximity of the media rendering device.
    Type: Grant
    Filed: September 15, 2015
    Date of Patent: May 16, 2017
    Assignee: D&M Holdings, Inc.
    Inventors: Nicholas Murrells, Brendon Stead, Peter Celinski, Anders Brogestam
  • Patent number: 9601097
    Abstract: A method of communicating musical sound control data over a wireless network that includes receiving a plurality of data commands formatted according to a MIDI protocol; assigning a packet sequence number to each of the data commands to form a plurality of historical data payload packets; storing the historical data payload packets in a buffer; receiving at a wireless interface device an acknowledgment message having a feedback sequence number; removing from the buffer selected historical payload packets of the plurality of stored historical data payload packets, each of the selected historical data payload packets having a packet sequence number that is the same as or less than the feedback sequence number, such that the buffer stores non-selected data commands, each of the non-selected data commands associated with a packet sequence number greater than the feedback sequence number; and transmitting the non-selected historical payload packets over a wireless network.
    Type: Grant
    Filed: March 6, 2015
    Date of Patent: March 21, 2017
    Assignee: Zivix, LLC
    Inventors: Jason Robert Nelson, Allen James Heidorn, Robert John Cox
  • Patent number: 9560104
    Abstract: Disclosed are various embodiments for a streaming media application. Media blocks of a media stream may be buffered at a quality level determined by an amount of available bandwidth. When excess bandwidth is made available, a higher quality replacement for a buffered media block may be obtained concurrent to streaming the media blocks. The replacement media block then replaces the lower quality media block in the buffer such that the higher quality replacement media block is rendered.
    Type: Grant
    Filed: May 9, 2016
    Date of Patent: January 31, 2017
    Assignee: Amazon Technologies, Inc.
    Inventors: Manuel José Dominic Caballero, Mark Edwin Hewis
  • Patent number: 9542268
    Abstract: A method for operating a memory includes receiving an input data set, saving a first level error correcting code ECC for the data in the input data set, saving second level ECCs for a plurality of second level groups of the data in the data set, storing the data set in the memory, and testing the data set to determine whether to use the first level ECC or the second level ECCs. The method includes, if the first level ECC is used, storing a flag enabling use of the first level ECC, else if the second level ECCs are used, storing a flag enabling use of the second level ECCs. The method includes storing the second level ECCs in a replacement ECC memory, and storing a pointer indicating locations of the second level ECCs in the replacement ECC memory.
    Type: Grant
    Filed: January 29, 2014
    Date of Patent: January 10, 2017
    Assignee: Macronix International Co., Ltd.
    Inventors: Chung-Kuang Chen, Han-Sung Chen, Chun-Hsiung Hung
  • Patent number: 9496004
    Abstract: A method for dividing and displaying a content unit includes: extracting a sub-content unit which is generated by dividing an original content unit by a preset time interval; displaying the entire sub-content unit when receiving a sub-content unit display command; receiving a jump command that selects a replay time point for an arbitrary sub-content unit among the above sub-content units; and replaying and displaying the original content unit from the replay time point.
    Type: Grant
    Filed: August 8, 2014
    Date of Patent: November 15, 2016
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Eunhye Lee, Jinyoung Jeon, Minkoo Kang, Jinyong Kim, Jihyun Ahn, Changmo Yang
  • Patent number: 9356509
    Abstract: Exemplary embodiments are related to current generators. A device may include a first integration path for charging a first integration capacitor during a first phase and a second integration path for charging a second integration capacitor during a second phase. The first integration capacitor may be configured for charging a capacitor coupled to an amplifier during the second phase and the second integration capacitor may be configured for charging the capacitor during the first phase.
    Type: Grant
    Filed: July 30, 2013
    Date of Patent: May 31, 2016
    Assignee: QUALCOMM Incorporated
    Inventor: Jeffrey Mark Hinrichs
  • Patent number: 9246525
    Abstract: A device for predistortion and pulse shaping filtering in a communication system includes input scaling means arranged for scaling an applied transmit symbol with an adaptable input gain scaling factor, and a pulse shaping filter and a predistortion unit arranged for applying on the input gain scaled transmit symbol in either order a filtering operation and a non-linear predistortion operation to obtain a predistorted signal. The non-linear predistortion operation is represented by a set of parameter values selectable among a plurality of given sets of parameter values. The predistortion unit is arranged for selecting the set of parameter values exploiting a given performance measure. The device includes output scaling means arranged for scaling the predistorted signal with an output gain scaling factor to obtain a transmit signal. The adaptable input gain scaling factor and the output gain scaling factor are precalculated values corresponding to the selected set of parameter values.
    Type: Grant
    Filed: March 10, 2015
    Date of Patent: January 26, 2016
    Assignee: NEWTEC CY
    Inventors: Dirk Breynaert, Dieter Duyck, Frederik Simoens
  • Patent number: 9247193
    Abstract: In one embodiment, a method includes receiving from the host a video special mode for reading video data, and sequentially reading the records included in data sets from the tape medium into segments of a buffer. When there is a C2 error during reading of the data sets, a predetermined error recovery process is skipped in accordance with the video special mode. When management information (DSIT) for the data set having the C2 error is available for reading, sending of the record(s) included in the data set having the C2 error to the host is skipped. For the data set having the C2 error, the number of records to be skipped included in the data set having the C2 error based on and from the DSIT is obtained and indicated to the host.
    Type: Grant
    Filed: June 17, 2014
    Date of Patent: January 26, 2016
    Assignee: International Business Machines Corporation
    Inventors: Atsushi Abe, Setsuko Masuda, Yumiko Ohta, Terue Watanabe
  • Patent number: 9225506
    Abstract: A receiving apparatus includes a differential amplifier and a logic circuit. The differential amplifier is adapted to receive differential signals having been differentially converted to single-ended convert the received differential signals into a single-ended signal. The logic circuit is adapted to: ternary discriminate an amplitude level of the single-ended signal at a first ternary discrimination timing; ternary discriminate an amplitude level of the single-ended signal at a second ternary discrimination timing; binary discriminate an amplitude level of the single-ended signal at the first binary discrimination timing, by using results of the ternary discriminations of the amplitude level of the single-ended signal at the first ternary discrimination timing and the second ternary discrimination timing; and output a binary signal corresponding to the binary discrimination.
    Type: Grant
    Filed: May 14, 2015
    Date of Patent: December 29, 2015
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventor: Yasumichi Takai
  • Publication number: 20150070796
    Abstract: A magnetic recording system includes an array of analog inputs operable to receive an array of analog signals retrieved from a magnetic storage medium, where one of the array of analog signals corresponds with a reference channel, a timing recovery circuit operable to generate a clock signal based on the analog signal for the reference channel, a number of analog to digital converters each operable to sample one of the array of analog signals based on the clock signal to yield a number of digital channels, and a joint equalizer operable to filter the digital channels to yield an equalized output.
    Type: Application
    Filed: September 19, 2013
    Publication date: March 12, 2015
    Applicant: LSI Corporation
    Inventors: George Mathew, Nayak Ratnakar Aravind, Suharli Tedja
  • Publication number: 20150062732
    Abstract: Systems and method relating generally to data processing, and more particularly to systems and methods for tone reduction in relation to data transmission.
    Type: Application
    Filed: September 12, 2013
    Publication date: March 5, 2015
    Applicant: LSI Corporation
    Inventors: Nayak Ratnakar Aravind, Bruce A. Wilson, Lu Pan, Haitao Xia
  • Patent number: 8922923
    Abstract: A data signal comprising an even component and an odd component with differing amplitudes is received at a main automatic gain controller (AGC). The even component is adjusted by a first interleaved AGC and the odd component is adjusted by a second interleaved AGC such that even and odd component amplitudes are substantially equal. Amplitude adjusted even and odd components are recombined to define a data signal with components having substantially equal amplitudes. The even and odd components can be generated by a read transducer moving relative to a magnetic storage medium comprising tracks defined by discrete and spaced-apart recording bits arranged in an interspersed pattern. A read channel separates the data signal into even and odd samples such that a gain can be independently adjusted for each of the even and odd samples to compensate for asymmetry between the even and odd samples.
    Type: Grant
    Filed: March 1, 2011
    Date of Patent: December 30, 2014
    Assignee: Seagate Technology LLC
    Inventors: Philip L. Steiner, Nan-Hsiung Yeh, Mathew P. Vea
  • Patent number: 8922934
    Abstract: Systems, methods, devices, circuits for transition based equalization.
    Type: Grant
    Filed: June 6, 2013
    Date of Patent: December 30, 2014
    Assignee: LSI Corporation
    Inventors: Jin Lu, Shaohua Yang
  • Patent number: 8917470
    Abstract: A method for detecting a data sequence includes generating a sample stream, which is a time-sequenced digital signal associated with samples of an analog signal. The sample stream is input to n equalization filter banks, which each have m equalization filters to generate m equalized sample streams. The m equalized sample streams from each equalization filter bank are input to a corresponding one of n noise predictive filters. Each noise predictive filter is an m-tap noise predictive filter that receives the m equalized sample streams from a corresponding one of the n equalization filter banks. Each noise predictive filter is associated with one of n data patterns. A filtered equalization stream is generated by each noise predictive filter. Noise sample streams are generated using the filtered equalization streams generated by the n noise predictive filters. A data sequence is detected using the noise sample streams.
    Type: Grant
    Filed: March 13, 2013
    Date of Patent: December 23, 2014
    Assignee: LSI Corporation
    Inventors: Yu Liao, Haitao Xia
  • Publication number: 20140334028
    Abstract: Systems, methods, devices, circuits for data processing, and more particularly to systems and methods for data processing with a linear phase noise predictive filter. A data processing system includes an equalizer circuit operable to filter a digital data input to yield equalized data, a linear phase noise predictive finite impulse response filter operable to filter the equalized data to yield filtered data, and a data detector circuit operable to apply a data detection algorithm to the filtered data to yield a detected output. The greatest tap coefficient for the linear phase noise predictive finite impulse response filter is at a center tap.
    Type: Application
    Filed: June 6, 2013
    Publication date: November 13, 2014
    Inventors: Lu Lu, Jianzhong Huang, Haitao Xia
  • Patent number: 8885276
    Abstract: The present inventions are related to systems and methods for data processing, and more particularly to systems and methods for performing data decoding.
    Type: Grant
    Filed: February 14, 2013
    Date of Patent: November 11, 2014
    Assignee: LSI Corporation
    Inventors: Shaohua Yang, Chung-Li Wang, Anatoli Bolotov, Bruce A. Wilson
  • Patent number: 8873931
    Abstract: A storage medium for storing text-based subtitle data including style information, a reproducing apparatus and methods are provided for reproducing text-based subtitle data including style information separately recorded on the storage medium. The storage medium includes: multimedia image data; and text-based subtitle data for displaying subtitles on an image based on the multimedia image data, wherein the text-based subtitle data includes dialog information indicating subtitle contents to be displayed on the image, style information indicating an output style of the dialog information, and partial style information indicating an output style applied to a portion of the dialog information. Accordingly, subtitles can be provided in a plurality of languages without limited to the number of units of subtitle data. In addition, subtitle data can be easily produced and edited. Likewise, an output style of the subtitle data can be changed in a variety of ways.
    Type: Grant
    Filed: August 13, 2008
    Date of Patent: October 28, 2014
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Kil-soo Jung, Sung-wook Park
  • Patent number: 8867154
    Abstract: Systems, methods, devices, circuits for data processing, and more particularly to systems and methods for data processing with a linear phase noise predictive filter. A data processing system includes an equalizer circuit operable to filter a digital data input to yield equalized data, a linear phase noise predictive finite impulse response filter operable to filter the equalized data to yield filtered data, and a data detector circuit operable to apply a data detection algorithm to the filtered data to yield a detected output. The greatest tap coefficient for the linear phase noise predictive finite impulse response filter is at a center tap.
    Type: Grant
    Filed: June 6, 2013
    Date of Patent: October 21, 2014
    Assignee: LSI Corporation
    Inventors: Lu Lu, Jianzhong Huang, Haitao Xia
  • Patent number: 8854750
    Abstract: The present inventions are related to systems and methods for data processing, and more particularly to data processing using distortion-correction loops with saturation-based assistance.
    Type: Grant
    Filed: July 30, 2012
    Date of Patent: October 7, 2014
    Assignee: LSI Corporation
    Inventors: Haotian Zhang, Haitao Xia
  • Publication number: 20140268389
    Abstract: The present inventions are related to systems and methods for data processing, and more particularly to systems and methods for detecting patterns in a data stream.
    Type: Application
    Filed: May 16, 2013
    Publication date: September 18, 2014
    Applicant: LSI Corporation
    Inventors: Shaohua Yang, Yoon Liong Liow
  • Publication number: 20140268390
    Abstract: Systems, methods, devices, circuits for transition based equalization.
    Type: Application
    Filed: June 6, 2013
    Publication date: September 18, 2014
    Applicant: LSI Corporation
    Inventors: Jin Lu, Shaohua Yang
  • Patent number: 8817404
    Abstract: The present inventions are related to systems and methods for data processing, and more particularly to systems and methods for improving performance and/or resource utilization based upon channel characteristics.
    Type: Grant
    Filed: July 18, 2013
    Date of Patent: August 26, 2014
    Assignee: LSI Corporation
    Inventors: Shu Li, Jun Xiao, Fan Zhang
  • Publication number: 20140237313
    Abstract: The present inventions are related to systems and methods for data processing, and more particularly to systems and methods for performing data decoding including utilization of different scaling values on a portion by portion basis during the data decoding.
    Type: Application
    Filed: February 19, 2013
    Publication date: August 21, 2014
    Applicant: LSI Corporation
    Inventors: Chung-Li Wang, Fan Zhang, Qi Qi, Shu Li, Shaohua Yang
  • Publication number: 20140237314
    Abstract: The present inventions are related to systems and methods for data processing, and more particularly to systems and methods for performing data decoding including skipping one or more codeword blocks in the data decoding process.
    Type: Application
    Filed: February 19, 2013
    Publication date: August 21, 2014
    Applicant: LSI Corporation
    Inventors: Shaohua Yang, Fan Zhang, Chung-Li Wang, Shu Li
  • Publication number: 20140226229
    Abstract: The present inventions are related to systems and methods for data processing, and more particularly to systems and methods for performing data decoding.
    Type: Application
    Filed: February 14, 2013
    Publication date: August 14, 2014
    Applicant: LSI Corporation
    Inventors: Shaohua Yang, Chung-Li Wang, Anatoli Bolotov, Bruce A. Wilson
  • Patent number: 8773811
    Abstract: Various embodiments of the present invention provide systems and methods for data processing. As an example, a data processing system is disclosed that includes Various embodiments of the present invention provide data processing systems that include an analog to digital converter circuit and a phase and gain computation circuit. The analog to digital converter circuit is operable to convert an analog input into a series of digital samples. At least a portion of the series of digitals samples represent a periodic signal from a servo data region. The phase and gain computation circuit is operable to: determine an approximate amplitude of the periodic signal based at least in part upon the digital samples representing the periodic signal from the servo data region; determine a gain based at least in part on the approximate amplitude; and determine a phase based at least in part on the approximate amplitude.
    Type: Grant
    Filed: December 12, 2011
    Date of Patent: July 8, 2014
    Assignee: LSI Corporation
    Inventors: Haitao Xia, Ming Jin, Dahua Qin, Shaohua Yang
  • Patent number: 8767333
    Abstract: Various embodiments of the present invention provide systems and methods for data processing. As an example, a data processing circuit is disclosed that includes a noise predictive filter circuit, a data detector circuit, and a first and a second pattern dependent adaptive target circuits. The noise predictive filter circuit includes at least a first pattern dependent filter circuit operable to perform noise predictive filtering on a data input for a first pattern using a first adaptive target to yield a first noise predictive output, and a second pattern dependent filter circuit operable to perform noise predictive filtering on the data input for a second pattern using a second adaptive target to yield a second noise predictive output. The data detector circuit is operable to apply a data detection algorithm to the first noise predictive output and the second noise predictive output to yield a detected output.
    Type: Grant
    Filed: September 22, 2011
    Date of Patent: July 1, 2014
    Assignee: LSI Corporation
    Inventors: Haitao Xia, Dahua Qin, Shaohua Yang
  • Patent number: 8761579
    Abstract: According to one embodiment, a video data processing apparatus which receives a data file includes a file receiving module, an analyzer, a default data storage module, a data restoration module, and a management module. The data file includes a header, in which a header key field, a header length field, and a header value field are arranged. The analyzer detects a character string, thereby detects a header key field of the data file received by the file receiving module, and reads out header metadata information from a following header value field. The data restoration module discards header data from a first position, in absence of the character string at the first position, and restores default data in the default data storage module instead of the discarded header data. The management module stores the header metadata information and the default data.
    Type: Grant
    Filed: July 27, 2011
    Date of Patent: June 24, 2014
    Assignee: Kabushiki Kaisha Toshiba
    Inventor: Akihiko Nakao