Patents by Inventor Travis Roger Oenning
Travis Roger Oenning has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 11601280Abstract: A first string, having a first string value, that is associated with a sample set of material is received, wherein a second string, having a complementary value relative to the first string value, is also associated with the sample set of material. A determinative hash is generated using the first string value and a symmetric generator polynomial. A second hash, corresponding to the second string, is generated directly from the determinative hash. A canonized hash is generated using the determinative hash and the second hash. It is determined whether at least one of the first string or the second string is stored in string storage that is configured to store a plurality of strings, including by searching a hash table for the canonized hash; in the event it is determined that at least one of the first string or the second string is not stored in the string storage, at least one of the first string or the second string is stored in the string storage.Type: GrantFiled: February 25, 2021Date of Patent: March 7, 2023Assignee: OmniTier Storage, Inc.Inventors: Jonathan Darrel Coker, Travis Roger Oenning, Balamurugan Anandan
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Publication number: 20220116222Abstract: A first string, having a first string value, that is associated with a sample set of material is received, wherein a second string, having a complementary value relative to the first string value, is also associated with the sample set of material. A determinative hash is generated using the first string value and a symmetric generator polynomial. A second hash, corresponding to the second string, is generated directly from the determinative hash. A canonized hash is generated using the determinative hash and the second hash. It is determined whether at least one of the first string or the second string is stored in string storage that is configured to store a plurality of strings, including by searching a hash table for the canonized hash; in the event it is determined that at least one of the first string or the second string is not stored in the string storage, at least one of the first string or the second string is stored in the string storage.Type: ApplicationFiled: February 25, 2021Publication date: April 14, 2022Inventors: Jonathan Darrel Coker, Travis Roger Oenning, Balamurugan Anandan
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Patent number: 10965467Abstract: A first string, having a first string value, that is associated with a sample set of material is received where a second string, having a complementary value relative to the first string value, is also associated with the sample set of material. A reversible hash generator is used to generate a determinative hash using the first string value, where a second hash, corresponding to the second string, is able to be determined directly from the determinative hash and without the reversible hash generator processing the complementary value of the second string. It is determined whether at least one of the first string or the second string is stored in a memory using the determinative hash.Type: GrantFiled: October 13, 2020Date of Patent: March 30, 2021Assignee: OmniTier Storage, Inc.Inventors: Jonathan Darrel Coker, Travis Roger Oenning, Balamurugan Anandan
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Patent number: 9059737Abstract: Disk drives are described in which blocks of data spanning multiple sectors are encoded into a plurality of codewords which are then divided into segments that are physically separated (distributed) on the disk surface over multiple sectors in a distributed codeword block so that the codewords have an improved worst case SNR in comparison to individual sectors. This results in more even SNR performance for each codeword, which improves the performance for portions of a track which have lower than the average SNR. Embodiments are described in which the distributed codeword blocks span across tracks.Type: GrantFiled: May 1, 2013Date of Patent: June 16, 2015Assignee: HGST Netherlands B.V.Inventors: Jonathan Darrel Coker, Richard Leo Galbraith, Weldon Mark Hanson, Travis Roger Oenning, Roger William Wood
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Publication number: 20150116860Abstract: Techniques for processing signals read-back from a disk of a hard disk drive are described. In one example, a hard disk drive device generates a signal associated with a first position within a width of the data track. The first position may correspond to the center of a data track. The hard disk drive device generates a signal associated with a second position within a width of the data track. The second position may be located at a distance of approximately 10% of the track width from the track center. The hard disk drive device combines the signals and applies as signal conditioning technique to the combined signal.Type: ApplicationFiled: October 28, 2013Publication date: April 30, 2015Applicant: HGST Netherlands B.V.Inventors: Jonathan Darrel COKER, Richard Leo GALBRAITH, Travis Roger OENNING, Roger William WOOD
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Patent number: 8988807Abstract: A hard disk drive has disks with data sector preambles that allow for inter-track interference. The same data sector preamble is used for all data sectors in a track but the preamble in each track is different from the preamble in radially adjacent tracks. In a first embodiment each preamble includes a synchronization field (SF) and synchronization mark (SM) that are the same in each track but different from the SF and SM in radially adjacent tracks. Only two unique SFs and two unique SMs are required, with the two SFs and two SMs alternating in radially adjacent tracks. In a second embodiment the preambles are “integrated”, meaning that the preamble is a sequence of bits that does not include separate dedicated fields, like SF and SM. The preamble bit sequences are decoded using matched filters to provide bit synchronization and start-of-data information.Type: GrantFiled: September 19, 2013Date of Patent: March 24, 2015Assignee: HGST Netherlands B.V.Inventors: Jonathan Darrel Coker, Richard Leo Galbraith, Weldon Mark Hanson, Travis Roger Oenning, Srinivasan Surendran
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Publication number: 20150077876Abstract: A hard disk drive has disks with data sector preambles that allow for inter-track interference. The same data sector preamble is used for all data sectors in a track but the preamble in each track is different from the preamble in radially adjacent tracks. In a first embodiment each preamble includes a synchronization field (SF) and synchronization mark (SM) that are the same in each track but different from the SF and SM in radially adjacent tracks. Only two unique SFs and two unique SMs are required, with the two SFs and two SMs alternating in radially adjacent tracks. In a second embodiment the preambles are “integrated”, meaning that the preamble is a sequence of bits that does not include separate dedicated fields, like SF and SM. The preamble bit sequences are decoded using matched filters to provide bit synchronization and start-of-data information.Type: ApplicationFiled: September 19, 2013Publication date: March 19, 2015Applicant: HGST Netherlands B.V.Inventors: Jonathan Darrel Coker, Richard Leo Galbraith, Weldon Mark Hanson, Travis Roger Oenning, Srinivasan Surendran
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Publication number: 20150077875Abstract: A hard disk drive has disks with data sector preambles that allow for inter-track interference. The same data sector preamble is used for all data sectors in a track but the preamble in each track is different from the preamble in radially adjacent tracks. In a first embodiment each preamble includes a synchronization field (SF) and synchronization mark (SM) that are the same in each track but different from the SF and SM in radially adjacent tracks. Only two unique SFs and two unique SMs are required, with the two SFs and two SMs alternating in radially adjacent tracks. In a second embodiment the preambles are “integrated”, meaning that the preamble is a sequence of bits that does not include separate dedicated fields, like SF and SM. The preamble bit sequences are decoded using matched filters to provide bit synchronization and start-of-data information.Type: ApplicationFiled: September 19, 2013Publication date: March 19, 2015Applicant: HGST Netherlands B.V.Inventors: Jonathan Darrel Coker, Richard Leo Galbraith, Weldon Mark Hanson, Travis Roger Oenning, Srinivasan Surendran
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Patent number: 8982491Abstract: A hard disk drive has disks with data sector preambles that allow for inter-track interference. The same data sector preamble is used for all data sectors in a track but the preamble in each track is different from the preamble in radially adjacent tracks. In a first embodiment each preamble includes a synchronization field (SF) and synchronization mark (SM) that are the same in each track but different from the SF and SM in radially adjacent tracks. Only two unique SFs and two unique SMs are required, with the two SFs and two SMs alternating in radially adjacent tracks. In a second embodiment the preambles are “integrated”, meaning that the preamble is a sequence of bits that does not include separate dedicated fields, like SF and SM. The preamble bit sequences are decoded using matched filters to provide bit synchronization and start-of-data information.Type: GrantFiled: September 19, 2013Date of Patent: March 17, 2015Assignee: HGST Netherlands B.V.Inventors: Jonathan Darrel Coker, Richard Leo Galbraith, Weldon Mark Hanson, Travis Roger Oenning, Srinivasan Surendran
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Patent number: 8947805Abstract: A receiver utilizes a plurality of read elements, each generating a read-back signal in response to a data track positioned beneath the read element. The plurality of read-back signals are each provided to at least one space-time interference cancellation filter, which generates a filtered output that maximizes a signal associated with one of the plurality of data tracks. The filtered output is provided to a one-dimensional Viterbi detector, which is configured to generate in response an output representative of a data sequence written to one of the plurality of data tracks.Type: GrantFiled: March 18, 2014Date of Patent: February 3, 2015Assignee: HGST Netherlands B.V.Inventors: Jonathan Darrel Coker, Travis Roger Oenning, Srinivasan Surendran
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Patent number: 8947806Abstract: A method of enhancing read performance in array-reader hardware includes generating, by the array-reader hardware, a plurality of signals, according to data read from a magnetic disk, and canceling at least a portion of cross-talk in the plurality of signals to generate a plurality of corrected signals.Type: GrantFiled: March 26, 2014Date of Patent: February 3, 2015Assignee: LSI CorporationInventors: Travis Roger Oenning, George Mathew
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Publication number: 20140201590Abstract: Disk drives are described in which blocks of data spanning multiple sectors are encoded into a plurality of codewords which are then divided into segments that are physically separated (distributed) on the disk surface over multiple sectors in a distributed codeword block so that the codewords have an improved worst case SNR in comparison to individual sectors. This results in more even SNR performance for each codeword, which improves the performance for portions of a track which have lower than the average SNR. Embodiments are described in which the distributed codeword blocks span across tracks.Type: ApplicationFiled: May 1, 2013Publication date: July 17, 2014Applicant: HGST Netherlands B.V.Inventors: Jonathan Darrel Coker, Richard Leo Galbraith, Weldon Mark Hanson, Travis Roger Oenning, Roger William Wood
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Patent number: 8736997Abstract: A method, apparatus, and system are provided for implementing magnetic defect location detection on-the-fly for hard disk drives. A magnetic media readback signal of a hard disk drive is demodulated to generate phase modulation (PM) and amplitude modulation (AM) signals. A new coordinate plane defined by a combined phase modulation (PM) and amplitude modulation (AM) phasor-defect detector calculation function used to locate magnetic defects on-the-fly.Type: GrantFiled: June 13, 2012Date of Patent: May 27, 2014Assignee: HGST Netherlands B.V.Inventors: Richard Leo Galbraith, Weldon Mark Hanson, Martin Aureliano Hassner, Travis Roger Oenning, Satoshi Yamamoto
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Patent number: 8654464Abstract: A method, apparatus, and system are provided for implementing magnetic defect classification using phase modulation for hard disk drives. A magnetic media readback signal of a hard disk drive is processed to identify predefined phase modulation (PM) characteristics to implement magnetic defect classification of magnetic media bump and pit defects.Type: GrantFiled: October 19, 2011Date of Patent: February 18, 2014Assignee: HGST Netherlands B.V.Inventors: Richard Leo Galbraith, Weldon Mark Hanson, Martin Aureliano Hassner, Travis Roger Oenning, Satoshi Yamamoto
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Patent number: 8649215Abstract: A Flash memory system and a method for data management using the system's sensitivity to charge-disturbing operations and the history of charge-disturbing operations executed by the system are described. In an embodiment of the invention, the sensitivity to charge-disturbing operations is embodied in a disturb-strength matrix in which selected operations have an associated numerical value that is an estimate of the relative strength of that operation to cause disturbances in charge that result in data errors. The disturb-strength matrix can also include the direction of the error which indicates either a gain or loss of charge. The disturb-strength matrix can be determined by the device conducting a self-test in which charge-disturb errors are provoked by executing a selected operation until a detectable error occurs. In alternative embodiments the disturb-strength matrix is determined by testing selected units from a homogeneous population.Type: GrantFiled: December 22, 2010Date of Patent: February 11, 2014Assignee: HGST Netherlands B.V.Inventors: Luiz M. Franca-Neto, Richard Leo Galbraith, Travis Roger Oenning
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Publication number: 20130335841Abstract: A method, apparatus, and system are provided for implementing magnetic defect location detection on-the-fly for hard disk drives. A magnetic media readback signal of a hard disk drive is demodulated to generate phase modulation (PM) and amplitude modulation (AM) signals. A new coordinate plane defined by a combined phase modulation (PM) and amplitude modulation (AM) phasor-defect detector calculation function used to locate magnetic defects on-the-fly.Type: ApplicationFiled: June 13, 2012Publication date: December 19, 2013Applicant: HGST NETHERLANDS B.V.Inventors: Richard Leo Galbraith, Weldon Mark Hanson, Martin Aureliano Hassner, Travis Roger Oenning, Satoshi Yamamoto
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Patent number: 8599609Abstract: A Flash memory system and a method for data management using the system's sensitivity to charge-disturbing operations and the history of charge-disturbing operations executed by the system are described. In an embodiment of the invention, the sensitivity to charge-disturbing operations is embodied in a disturb-strength matrix in which selected operations have an associated numerical value that is an estimate of the relative strength of that operation to cause disturbances in charge that result in data errors. The disturb-strength matrix should also include the direction of the error which indicates either a gain or loss of charge. The disturb-strength matrix can be determined by the device conducting a self-test in which changes in the measured dispersion value are provoked by executing a selected operation until a detectable change occurs. In alternative embodiments the disturb-strength matrix is determined by testing selected units from a homogeneous population.Type: GrantFiled: December 22, 2010Date of Patent: December 3, 2013Assignee: HGST Netherlands B.V.Inventors: Luiz M. Franca-Neto, Richard Leo Galbraith, Travis Roger Oenning
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Patent number: 8599973Abstract: Embodiments of the present invention relate to the detection of synchronization marks in data storage and retrieval. According to one embodiment, synchronization marks are detected from the output of a matched filter, upstream of the Viterbi detector. This approach avoids the delay associated with the latency of the Viterbi output, thereby allowing time to align parity framing and to properly start the time-varying trellis. Certain embodiments disclose 34- and 20-bit primary synchronization marks located at the beginning of a data region. Other embodiments disclose 16-, 20-, and 24-bit embedded synchronization marks located within a data region.Type: GrantFiled: April 30, 2008Date of Patent: December 3, 2013Assignee: HGST Netherlands B.V.Inventors: Richard Leo Galbraith, Weldon Mark Hanson, Travis Roger Oenning, Todd Carter Truax
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Publication number: 20130100550Abstract: A method, apparatus, and system are provided for implementing magnetic defect classification using phase modulation for hard disk drives. A magnetic media readback signal of a hard disk drive is processed to identify predefined phase modulation (PM) characteristics to implement magnetic defect classification of magnetic media bump and pit defects.Type: ApplicationFiled: October 19, 2011Publication date: April 25, 2013Applicant: Hitachi Global Storage Technologies Netherlands B. V.Inventors: Richard Leo Galbraith, Weldon Mark Hanson, Martin Aureliano Hassner, Travis Roger Oenning, Satoshi Yamamoto
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Patent number: 8422296Abstract: Techniques for early detection of degradation in NAND Flash memories by measuring the dispersion of the threshold voltages (VT's), of a set (e.g. page) of NAND Flash memory cells during read operations are described. In an embodiment of the invention the time-to-completion (TTC) values for the read operation for the memory cells are used as a proxy for dispersion of the threshold voltages (VT's). A Dispersion Analyzer determines the dispersion of the set of TTC values. In one embodiment the delta between the maximum and minimum TTC values is used as the dispersion measurement. If the measured TTC dispersion differs by more than a selected amount from a reference dispersion value, a warning signal is provided to indicate that the page of memory has degraded. The warning signal can be used to take appropriate action such as moving the data to a new page.Type: GrantFiled: December 22, 2010Date of Patent: April 16, 2013Assignee: HGST Netherlands B.V.Inventors: Luiz M. Franca-Neto, Richard Leo Galbraith, Travis Roger Oenning