Lsi Corporation

Broadcom Corporation

Cirrus Logic Inc.

Netapp, Inc.

Shiang-Jyh Chang

Siamack Nemazie

Young-Ta Wu

William R Foland, Jr

Kaushik L Popat

Andrew Hyonil Chong

Balaji Venugopal Virajpet

Vineet Dujari

Roger McPherson

Maoxin Wei

Sam Nemazie

An embodiment of the present invention is disclosed to include a SATA Switch allowing for access by two hosts to a single port SATA device Further disclosed are embodiments for reducing the delay and complexity of the SATA Switch.

Switching serial advanced technology attachment (SATA) to a parallel interface

An embodiment of the present invention is disclosed to include a hard disk drive allowing for access by two hosts to a device. Further disclosed are embodiments for reducing the delay and complexity of the SATA disk drive.

Dual port serial advanced technology attachment (SATA) disk drive

Route aware serial advanced technology attachment (SATA) switch

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.

Systems and methods for data storage devices and controllers

An embodiment of the present invention is disclosed to include a fiber channel target device for receiving information in the form of frames and including a controller device coupled to a microprocessor for processing the frames received from the host, at least one receive buffer for storing the frames and having a buffer size, the controller device issuing credit to the host for receipt of further frames in a manner wherein only one microprocessor is needed to process the frames while maintaining a buffer size that is as small as the number of first type of frames that can be received by the fiber channel target device from the host.

High performance architecture for fiber channel targets and target bridges

An embodiment of the present invention includes a switch employed in a system having two hosts and a device and for coupling two or more host ports to a device. The switch includes a power signal control circuit generating a power signal for use by the device in receiving power for operability thereto, the power signal control circuit responsive to detection of inoperability of the device and in response thereto, toggling the power signal to the device while avoiding interruption to the system.

Serial advanced technology attachment (SATA) switch that toggles with power control to hard disk drive while avolding interruption to system

Mixed-signal single-chip integrated system electronics for data storage devices

A switch is coupled between a plurality of host units and a device for communicating therebetween. Included is a first serial advanced technology attachment (SATA) port, a second SATA port, and a third SATA port. The first SATA port includes a first host task file coupled to a first host unit, and the first host task file is responsive to commands sent by the first host unit to the device. The second SATA port includes a second host task file coupled to a second host unit, and the second host task file is responsive to commands sent by the second host unit to the device. An arbitration control circuit is coupled to the SATA ports, and selects from the first and second hosts to concurrently access the device, through the switch, accepting commands from either host units at any time, including when the device is not idle.

Serial Advanced Technology Attachment (SATA) switch

Integrated disc drive controller

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 &ldquo;hard block&rdquo; components which are unchanged by integrated circuit design software. Changes in operability of the overall integrated circuit may be readily achieved by altering &ldquo;soft block&rdquo; components to customize or tailor the design for a particular hard drive. 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.

Growing community of inventors

San Jose, CA, United States of America

Shiang-Jyh Chang