Patents by Inventor Maoxin Wei

Maoxin Wei 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).

  • Publication number: 20190025872
    Abstract: Methods and USB devices correlating clock domains are presented. A USB device includes at least one signal line adapted to carry signals in a first clock domain. The signals are received from a USB host. A clock operates a second clock domain. A periodic packet detection circuit detects a missing periodic packet from the signals received in the first clock domain. A device controller correlates a USB operation in the second clock domain with the first clock domain based on the periodic packet detection circuit detecting the missing periodic packet. A USB device includes at least one signal line carrying UTMI or ULPI signaling. A USB controller decodes packet identification from the UTMI or ULPI signaling. A periodic packet detection circuit, separate from the USB controller, decodes packet identification from the UTMI or ULPI signaling.
    Type: Application
    Filed: July 18, 2017
    Publication date: January 24, 2019
    Inventors: Ren Li, Peter Shah, Matthew Sienko, Hui-ya Liao Nelson, Stefan Rohrer, Arash Mehrabi, Stefan Mueller, Ralf Herz, Magesh Hariharan, Maoxin Wei
  • Patent number: 8060674
    Abstract: An integrated data storage control system provides, in a single integrated circuit, RDC, servo logic, ATA interface, microprocessor, and other formerly discrete components in one highly integrated system design. The integrated circuit is rendered using a single integrated circuit technology type (e.g., digital CMOS) for all components. Analog and digital circuits are combined in such a way as to eliminate or reduce noise or interference in digital circuits from analog circuit components. Individual elements may have their outputs and inputs MUXed together such that individual elements can be selectively switched (during testing modes) such that the integrated circuit emulates or behaves in the same or similar manner as one of the prior art components. The present invention may be applied to magnetic hard disk drives (HDDs) or other types of storage devices such as floppy disk controllers, optical disk drives (e.g., CD-ROMs and the like), tape drives, and other data storage devices.
    Type: Grant
    Filed: May 5, 2009
    Date of Patent: November 15, 2011
    Assignee: Broadcom Corporation
    Inventors: Siamack Nemazie, Kaushik Popat, Balaji Virajpet, William R. Foland, Jr., Roger McPherson, Maoxin Wei, Vineet Dujari, Shiang-Jyh Chang
  • Publication number: 20090274017
    Abstract: An integrated data storage control system provides, in a single integrated circuit, RDC, servo logic, ATA interface, microprocessor, and other formerly discrete components in one highly integrated system design. The integrated circuit is rendered using a single integrated circuit technology type (e.g., digital CMOS) for all components. Analog and digital circuits are combined in such a way as to eliminate or reduce noise or interference in digital circuits from analog circuit components. Individual elements may have their outputs and inputs MUXed together such that individual elements can be selectively switched (during testing modes) such that the integrated circuit emulates or behaves in the same or similar manner as one of the prior art components. The present invention may be applied to magnetic hard disk drives (HDDs) or other types of storage devices such as floppy disk controllers, optical disk drives (e.g., CD-ROMs and the like), tape drives, and other data storage devices.
    Type: Application
    Filed: May 5, 2009
    Publication date: November 5, 2009
    Inventors: Siamack Nemazie, Kaushik Popat, Balaji Virajpet, William R. Foland, JR., Roger McPherson, Maoxin Wei, Vineet Dujari, Shiang-Jyh Chang
  • Patent number: 7529869
    Abstract: An integrated data storage control system provides, in a single integrated circuit, RDC, servo logic, ATA interface, microprocessor, and other formerly discrete components in one highly integrated system design. The integrated circuit is rendered using a single integrated circuit technology type (e.g., digital CMOS) for all components. Analog and digital circuits are combined in such a way as to eliminate or reduce noise or interference in digital circuits from analog circuit components. Individual elements may have their outputs and inputs MUXed together such that individual elements can be selectively switched (during testing modes) such that the integrated circuit emulates or behaves in the same or similar manner as one of the prior art components. The present invention may be applied to magnetic hard disk drives (HDDs) or other types of storage devices such as floppy disk controllers, optical disk drives (e.g., CD-ROMs and the like), tape drives, and other data storage devices.
    Type: Grant
    Filed: August 18, 2005
    Date of Patent: May 5, 2009
    Assignee: Broadcom Corporation
    Inventors: Siamack Nemazie, Kaushik Popat, Balaji Virajpet, William Foland, Jr., Roger McPherson, Maoxin Wei, Vineet Dujari, Shiang-Jyh Chang
  • Patent number: 7475173
    Abstract: An integrated data storage control system provides, in a single integrated circuit, RDC, servo logic, ATA interface, microprocessor, and other formerly discrete components in one highly integrated system design. The integrated circuit is rendered using a single integrated circuit technology type (e.g., digital CMOS) for all components. Analog and digital circuits are combined in such a way as to eliminate or reduce noise or interference in digital circuits from analog circuit components. Individual elements may have their outputs and inputs MUXed together such that individual elements can be selectively switched (during testing modes) such that the integrated circuit emulates or behaves in the same or similar manner as one of the prior art components. The present invention may be applied to magnetic hard disk drives (HDDs) or other types of storage devices such as floppy disk controllers, optical disk drives (e.g., CD-ROMs and the like), tape drives, and other data storage devices.
    Type: Grant
    Filed: March 17, 2006
    Date of Patent: January 6, 2009
    Assignee: Broadcom Corporation
    Inventors: Siamack Nemazie, Kaushik Popat, Balaji Virajpet, William R. Foland, Jr., Roger McPherson, Maoxin Wei, Vineet Dujari, Shiang-Jyh Chang
  • Publication number: 20060161703
    Abstract: An integrated data storage control system provides, in a single integrated circuit, RDC, servo logic, ATA interface, microprocessor, and other formerly discrete components in one highly integrated system design. The integrated circuit is rendered using a single integrated circuit technology type (e.g., digital CMOS) for all components. Analog and digital circuits are combined in such a way as to eliminate or reduce noise or interference in digital circuits from analog circuit components. Individual elements may have their outputs and inputs MUXed together such that individual elements can be selectively switched (during testing modes) such that the integrated circuit emulates or behaves in the same or similar manner as one of the prior art components. The present invention may be applied to magnetic hard disk drives (HDDs) or other types of storage devices such as floppy disk controllers, optical disk drives (e.g., CD-ROMs and the like), tape drives, and other data storage devices.
    Type: Application
    Filed: March 17, 2006
    Publication date: July 20, 2006
    Inventors: Siamack Nemazie, Kaushik Popat, Balaji Virajpet, William Foland, Roger McPherson, Maoxin Wei, Vineet Dujari, Shiang-Jyh Chang
  • Publication number: 20060010271
    Abstract: An integrated data storage control system provides, in a single integrated circuit, RDC, servo logic, ATA interface, microprocessor, and other formerly discrete components in one highly integrated system design. The integrated circuit is rendered using a single integrated circuit technology type (e.g., digital CMOS) for all components. Analog and digital circuits are combined in such a way as to eliminate or reduce noise or interference in digital circuits from analog circuit components. Individual elements may have their outputs and inputs MUXed together such that individual elements can be selectively switched (during testing modes) such that the integrated circuit emulates or behaves in the same or similar manner as one of the prior art components. The present invention may be applied to magnetic hard disk drives (HDDs) or other types of storage devices such as floppy disk controllers, optical disk drives (e.g., CD-ROMs and the like), tape drives, and other data storage devices.
    Type: Application
    Filed: August 18, 2005
    Publication date: January 12, 2006
    Inventors: Siamack Nemazie, Kaushik Popat, Balaji Virajpet, William Foland, Roger McPherson, Maoxin Wei, Vineet Dujari, Shiang-Jyh Chang
  • Patent number: 6594716
    Abstract: An integrated data storage control system provides, in a single integrated circuit, RDC, servo logic, ATA interface, microprocessor, and other formerly discrete components in one highly integrated system design. The integrated circuit is rendered using a single integrated circuit technology type (e.g., digital CMOS) for all components. Analog and digital circuits are combined in such a way as to eliminate or reduce noise or interference in digital circuits from analog circuit components. Individual elements may have their outputs and inputs MUXed together such that individual elements can be selectively switched (during testing modes) such that the integrated circuit emulates or behaves in the same or similar manner as one of the prior art components. The present invention may be applied to magnetic hard disk drives (HDDs) or other types of storage devices such as floppy disk controllers, optical disk drives (e.g., CD-ROMs and the like), tape drives, and other data storage devices.
    Type: Grant
    Filed: June 28, 2001
    Date of Patent: July 15, 2003
    Assignee: Cirrus Logic, Inc.
    Inventors: Siamack Nemazie, Kaushik Popat, Balaji Virajpet, William R. Foland, Jr., Roger McPherson, Maoxin Wei, Vineet Dujari, Shiang-Jyh Chang
  • Publication number: 20010056511
    Abstract: An integrated data storage control system provides, in a single integrated circuit, RDC, servo logic, ATA interface, microprocessor, and other formerly discrete components in one highly integrated system design. The integrated circuit is rendered using a single integrated circuit technology type (e.g., digital CMOS) for all components. Analog and digital circuits are combined in such a way as to eliminate or reduce noise or interference in digital circuits from analog circuit components. Individual elements may have their outputs and inputs MUXed together such that individual elements can be selectively switched (during testing modes) such that the integrated circuit emulates or behaves in the same or similar manner as one of the prior art components. The present invention may be applied to magnetic hard disk drives (HDDs) or other types of storage devices such as floppy disk controllers, optical disk drives (e.g., CD-ROMs and the like), tape drives, and other data storage devices.
    Type: Application
    Filed: June 28, 2001
    Publication date: December 27, 2001
    Inventors: Siamack Nemazie, Kaushik Popat, Balaji Virajpet, William Foland, Roger McPherson, Maoxin Wei, Vineet Dujari, Shiang-Jyh Chang
  • Publication number: 20010054119
    Abstract: An integrated data storage control system provides, in a single integrated circuit, RDC, servo logic, ATA interface, microprocessor, and other formerly discrete components in one highly integrated system design. The integrated circuit is rendered using a single integrated circuit technology type (e.g., digital CMOS) for all components. Analog and digital circuits are combined in such a way as to eliminate or reduce noise or interference in digital circuits from analog circuit components. Individual elements may have their outputs and inputs MUXed together such that individual elements can be selectively switched (during testing modes) such that the integrated circuit emulates or behaves in the same or similar manner as one of the prior art components. The present invention may be applied to magnetic hard disk drives (HDDs) or other types of storage devices such as floppy disk controllers, optical disk drives (e.g., CD-ROMs and the like), tape drives, and other data storage devices.
    Type: Application
    Filed: June 28, 2001
    Publication date: December 20, 2001
    Inventors: Siamack Nemazie, Kaushik Popat, Balaji Virajpet, William R. Foland, Roger McPherson, Maoxin Wei, Vineet Dujari, Shiang-Jyh Chang
  • Patent number: 6314480
    Abstract: An integrated HDD system provides, in a single integrated circuit, RDC, servo logic, ATA interface, microprocessor, and other formerly discrete components in one highly integrated system design. The integrated circuit is rendered using a single integrated circuit technology type (e.g. digital CMOS) for all components. Analog and digital circuits are combined in such a way as to eliminate or reduce noise or interference in digital circuits from analog circuit components. The invention takes advantage of existing circuit design modules provided in the integrated circuit as “hard block” components which are unchanged by integrated circuit design software. Changes in operability of the overall integrated circuit may be readily achieved by altering “soft block” components to customize or tailor the design for a particular hard drive.
    Type: Grant
    Filed: November 8, 1999
    Date of Patent: November 6, 2001
    Assignee: Cirrus Logic, Inc.
    Inventors: Siamack Nemazie, Kaushik Popat, Balaji Virajpet, William R. Foland, Jr., Roger McPherson, Maoxin Wei, Vineet Dujari, Shiang-Jyh Chang