Patents by Inventor Scott H. Davis

Scott H. Davis 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).

  • Patent number: 10327939
    Abstract: Devices, systems, and methods for administering therapy to restore limb motion to patients in need are disclosed. The system may include a motion capture device to capture an exercise performed by a therapist. The exercise may be retrieved by the patient and used to generate a visual display used to guide the patient through the exercise in real time.
    Type: Grant
    Filed: September 25, 2015
    Date of Patent: June 25, 2019
    Inventors: J. Glen House, Scott Rea, Duncan H. Stewart, Andrew Murrell, Joshua Nielsen, Kyung M. Kim, Ryan Mavity, Gregory M. Kabel, Marcus E. Walker, John M. Davis, Jonathan J. Schneider, Brian S. Brookover, Chad Moore, Melissa VonOhlen, Gage Owens, Ryan Wallway, Colton Buechel, Haley Holcombe, Daniel Neal
  • Patent number: 10176102
    Abstract: Systems and methods for a content addressable cache that is optimized for SSD use are disclosed. In some embodiments, the cache utilizes an identifier array where identification information is stored for each entry in the cache. However, the size of the bit field used for the identification information is not sufficient to uniquely identify the data stored at the associated entry in the cache. A smaller bit field increases the likelihood of a “false positive”, where the identification information indicates a cache hit when the actual data does not match the digest. A larger bit field decreases the probability of a “false positive”, at the expense of increased metadata memory space. Thus, the architecture allows for a compromise between metadata memory size and processing cycles.
    Type: Grant
    Filed: March 30, 2016
    Date of Patent: January 8, 2019
    Assignee: Infinio Systems, Inc.
    Inventors: David W. Harvey, Scott H. Davis, Martin Charles Martin, Vishal Misra, Hooman Vassef
  • Publication number: 20170286307
    Abstract: Systems and methods for a content addressable cache that is optimized for SSD use are disclosed. In some embodiments, the cache utilizes an identifier array where identification information is stored for each entry in the cache. However, the size of the bit field used for the identification information is not sufficient to uniquely identify the data stored at the associated entry in the cache. A smaller bit field increases the likelihood of a “false positive”, where the identification information indicates a cache hit when the actual data does not match the digest. A larger bit field decreases the probability of a “false positive”, at the expense of increased metadata memory space. Thus, the architecture allows for a compromise between metadata memory size and processing cycles.
    Type: Application
    Filed: March 30, 2016
    Publication date: October 5, 2017
    Inventors: David W. Harvey, Scott H. Davis, Martin Charles Martin, Vishal Misra, Hooman Vassef
  • Patent number: 8776050
    Abstract: A management capability is provided for a virtual computing platform. In one example, this platform allows interconnected physical resources such as processors, memory, network interfaces and storage interfaces to be abstracted and mapped to virtual resources (e.g., virtual mainframes, virtual partitions). Virtual resources contained in a virtual partition can be assembled into virtual servers that execute a guest operating system (e.g., Linux). In one example, the abstraction is unique in that any resource is available to any virtual server regardless of the physical boundaries that separate the resources. For example, any number of physical processors or any amount of physical memory can be used by a virtual server even if these resources span different nodes.
    Type: Grant
    Filed: October 25, 2004
    Date of Patent: July 8, 2014
    Assignee: Oracle International Corporation
    Inventors: Jerry Plouffe, Scott H. Davis, Alexander D. Vasilevsky, Benjamin J. Thomas, III, Steven S. Noyes, Tom Hazel
  • Publication number: 20080256090
    Abstract: In a network of computer nodes, a directory service provides both the physical location of directory information around the network and the directory information itself in a single data structure. This single data structure is distributed throughout the network, and continuously redistributed, so as to create a directory service that is both more flexible, and more robust, than prior art directory services.
    Type: Application
    Filed: June 23, 2008
    Publication date: October 16, 2008
    Applicant: MANGOSOFT CORPORATION
    Inventors: Daniel J. Dietterich, Robert S. Phillips, John B. Carter, Scott H. Davis, Steven J. Frank, William Abraham
  • Patent number: 7136903
    Abstract: A multi-user file storage service and system enable each user of a pre-subscribed user group to communicate with a remote file server node via a wide area network and to access the files of the file group via the respective client node. More than one user of the pre-subscribed user group is permitted to access the file group at the remote file server node simultaneously. Integrity of the files at the remote file server node are maintained by controlling each access to each file at the remote file server node so that each access to files at the remote file server is performed, if at all, on a respective portion of each file as most recently updated at the remote file server node. Additionally, an encrypted key is transferred from the file server node to a particular client node via a secure channel. The encrypted key uses an encryption function and a decryption function not known locally at the remote file server.
    Type: Grant
    Filed: November 1, 2000
    Date of Patent: November 14, 2006
    Assignee: Mangosoft Intellectual Property, Inc.
    Inventors: Robert S. Phillips, Scott H. Davis, Daniel J. Dietterich, Scott E. Nyman, David Porter
  • Patent number: 7058696
    Abstract: A multi-user file storage service and system enables each user of a user group to operate an arbitrary client node at an arbitrary geographic location to communicate with a remote file server node via a wide area network. More than one user of the user group is permitted to access the file group at the remote file server node simultaneously, but the integrity of the files is maintained by controlling access so that each access to one of the files at the remote file server is performed, if at all, on a respective portion of that file as most recently updated at the remote file server node.
    Type: Grant
    Filed: November 1, 2000
    Date of Patent: June 6, 2006
    Assignee: Mangosoft Corporation
    Inventors: Robert S. Phillips, Scott H. Davis, Daniel J. Dietterich, Scott E. Nyman, David Porter
  • Patent number: 6760756
    Abstract: A method and system are provided for optimizing the local caching of one or more data components available from a server node. Each of plural nodes connected to a local area network is provided with a locally physically present cache. Each of the caches of at least some of the plurality of nodes are linked together into a single virtual cache. A particular one of the nodes is designated as a repository node for persistently storing a particular data component and for providing a copy of the particular data component to other referencing nodes of the plurality of nodes which lack, but which desire to access, the particular data component. Designation of the particular node as the repository node is unchanged solely by providing a copy of the particular data component to one of the referencing nodes that desires to access the particular data component. The repository function of a node for a particular data component is relatively static.
    Type: Grant
    Filed: June 21, 2000
    Date of Patent: July 6, 2004
    Assignee: MangoSoft Corporation
    Inventors: Scott H. Davis, Daniel J. Dietterich, Paul D. Asselin, Gerard R. Plouffe, Phillip John Romine
  • Publication number: 20040117410
    Abstract: In a network of computer nodes, a directory service provides both the physical location of directory information around the network and the directory information itself in a single data structure.
    Type: Application
    Filed: November 7, 2003
    Publication date: June 17, 2004
    Inventors: Daniel J. Dietterich, Robert S. Phillips, John B. Carter, Scott H. Davis, Steven J. Frank, William Abraham
  • Patent number: 6647393
    Abstract: In a network of computer nodes, a directory service provides both the physical location of directory information around the network and the directory information itself in a single data structure. This single data structure is distributed throughout the network, and continuously redistributed, so as to create a directory service that is both more flexible, and more robust, than prior art directory services.
    Type: Grant
    Filed: May 2, 1997
    Date of Patent: November 11, 2003
    Assignee: Mangosoft Corporation
    Inventors: Daniel J. Dietterich, Robert S. Phillips, John B. Carter, Scott H. Davis, Steven J. Frank, William Abraham
  • Publication number: 20020046230
    Abstract: A system for scheduling thread execution on a limited number of operating system threads inside a kernel device driver and allowing execution of context threads by kernel mode threads includes a kernel device driver that itself includes at least one kernel thread. A data structure stored in a memory element is associated with a context thread to be executed by the system. A flow scheduler stores context thread state in the associated data structure and schedules the execution of one or more context threads.
    Type: Application
    Filed: April 29, 1998
    Publication date: April 18, 2002
    Inventors: DANIEL J. DIETERICH, JOHN B. CARTER, SCOTT H. DAVIS, STEVEN J. FRANK, THOMAS G. HANSEN, HSIN H. LEE
  • Patent number: 6148377
    Abstract: Distributed shared memory systems and processes that can connect into each node of a computer network to encapsulate the memory management operations of the connected nodes and to provide thereby an abstraction of a shared virtual memory that can span across each node of the network and that optionally spans across each memory device connected to the computer network. Accordingly, each node on the network having the distributed shared memory system of the invention can access the shared memory.
    Type: Grant
    Filed: November 22, 1996
    Date of Patent: November 14, 2000
    Assignee: Mangosoft Corporation
    Inventors: John B. Carter, Scott H. Davis, William Abraham, Steven J. Frank, Thomas G. Hansen, Robert S. Phillips, Daniel J. Dietterich, David Porter
  • Patent number: 6026474
    Abstract: A shared client-side Web cache is provided by implementing a file system shared between nodes. Each browser application stores cached data in files stored in a globally addressable data store. Since the file system is a shared one, the client-side Web caches are also shared.
    Type: Grant
    Filed: May 2, 1997
    Date of Patent: February 15, 2000
    Assignee: Mangosoft Corporation
    Inventors: John B. Carter, Scott H. Davis, Daniel J. Dietterich, Steven J. Frank, Hsin H. Lee
  • Patent number: 5987506
    Abstract: A computer system employs a globally addressable storage environment that allows a plurality of networked computers to access data by addressing even when the data is stored on a persistent storage device such as a computer hard disk and other traditionally non-addressable data storage devices. The computers can be located on a single computer network or on a plurality of interconnected computer networks such as two local area networks (LANs) coupled by a wide area network (WAN). The globally addressable storage environment allows data to be accessed and shared by and among the various computers on the plurality of networks.
    Type: Grant
    Filed: May 2, 1997
    Date of Patent: November 16, 1999
    Assignee: Mangosoft Corporation
    Inventors: John B. Carter, Scott H. Davis, Steven J. Frank
  • Patent number: 5918229
    Abstract: In a network of computer nodes, a structured storage system interfaces to a globally addressable memory system that provides persistent storage of data. The globally addressable memory system may be a distributed shared memory (DSM) system. A control program resident on each network node can direct the memory system to map file and directory data into the shared memory space. The memory system can include functionality to share data, coherently replicate data, and create log-based transaction data to allow for recovery. In one embodiment, the memory system provides memory device services to the data control program. These services can include read, write, allocate, flush, or any other similar or additional service suitable for providing low level control of a memory storage device.
    Type: Grant
    Filed: March 28, 1997
    Date of Patent: June 29, 1999
    Assignee: Mangosoft Corporation
    Inventors: Scott H. Davis, John B. Carter, Steven J. Frank, Hsin H. Lee, Daniel J. Dietterich
  • Patent number: 5909540
    Abstract: A network of computer node interface to globally addressable memory system that provides persistent storage of data exchange periodic connectivity information. The exchanged connectivity information provides information regarding node failure to other nodes in the system, and the surviving nodes use the information to determine which node, if any, has ceased functioning. Various processes are used to recover the portion of the global address space for which the failed node was responsible, including RAM directory, disk directory, or file system information. Additionally, nodes may be subdivided into groups and connectivity information is exchanged between nodes belonging to a group. Each group then exchanges group-wise connectivity information and failures may be recovered.
    Type: Grant
    Filed: May 2, 1997
    Date of Patent: June 1, 1999
    Assignee: Mangosoft Corporation
    Inventors: John B. Carter, Scott H. Davis, Daniel J. Dietterich, Steven J. Frank, Robert S. Phillips, John Woods, David Porter, Hsin H. Lee
  • Patent number: 5819109
    Abstract: The present invention is a method of writing data to a storage system using a redundant array of independent/inexpensive disks ("RAID") organization that eliminates the write hole problem of regenerating undetected corrupt data. The invention also overcomes the need for system overhead to synchronize data writes to logical block numbers that map to the same parity block. A log is constructed and used for storing information relating to requested updates or write operations to the data blocks in the multiple disk array. A separate entry is made in the log for each parity block that must be updated as a result of the write operation. Each log entry contains the addresses of the logical block numbers to which data must be written for that operation. After the new data is written to data blocks in the RAID array, a background scrubber operation sequentially reads the next available entry in the log and performs a parity calculation to determine the parity resulting from the write operation.
    Type: Grant
    Filed: December 7, 1992
    Date of Patent: October 6, 1998
    Assignee: Digital Equipment Corporation
    Inventor: Scott H. Davis
  • Patent number: 5546536
    Abstract: A log for managing data in a shadow set of storage media includes a system for maintaining a log of address information associated with at least one write command received from one of a plurality of data processing devices. The system for maintaining a log of address information includes a device for receiving a write command from a data processing device, a device which writes data associated with the write command in a section of one of the storage media, and a device which writes address information in a log indicative of the location of that section. A device is provided which then implements a management operation on data stored on one of the storage media in accordance with the address information stored in the log.
    Type: Grant
    Filed: March 23, 1995
    Date of Patent: August 13, 1996
    Assignee: Digital Equipment Corporation
    Inventors: Scott H. Davis, William L. Goleman, David W. Thiel, Robert G. Bean, James A. Zahrobsky
  • Patent number: 5247618
    Abstract: A method and apparatus for transferring data between two storage media, and is used in an illustrative embodiment to transfer data between two storage media in a shadow set, the storage media being accessible to one or more host processors. The method of the preferred embodiment includes the steps of: A. receiving a command from one of the host processors, the command specifying data to be transferred from a first storage medium to a second storage medium; B. transferring the data specified in the command received from the host from the first storage medium to the second storage medium in a series of subtransfers, each of the subtransfers transferring a portion of the data; and C. processing one or more I/O requests to the shadow set received from one or more host processors by, for each received I/O request: a. implementing the I/O request if the I/O request does not involve a section of the shadow set currently involved in one of the subtransfers; and b.
    Type: Grant
    Filed: May 11, 1992
    Date of Patent: September 21, 1993
    Assignee: Digital Equipment Corporation
    Inventors: Scott H. Davis, William L. Goleman, David W. Thiel, Robert G. Bean, James A. Zahrobsky
  • Patent number: 5239637
    Abstract: A digital data management system for managing a shadow set of storage media includes a plurality of storage media each accessible by at least one data processing device for I/O operations. Successive comparisons are carried out between data stored in corresponding locations in the storage media while maintaining access to the storage media for I/O operations. When inconsistency between data in corresponding locations is detected, a management operation is performed on at least one of the shadow set storage media. The management operation includes interrupting I/O operations to at least the storage medium on which the operation is performed, modifying data on one of the shadow set storage media to correct the inconsistency, and resuming availability of the storage media for I/O operations.
    Type: Grant
    Filed: June 30, 1989
    Date of Patent: August 24, 1993
    Assignee: Digital Equipment Corporation
    Inventors: Scott H. Davis, William L. Goleman, David W. Thiel