Patents Represented by Attorney David E. Huang, Esq.
  • Patent number: 6973593
    Abstract: A system analyzer for a data storage system has a control module and a memory module. The system analyzer includes a logic analyzer, an input port that couples to the data storage system, an output port that couples to the logic analyzer, and a pre-processor which is interconnected between the input port and the output port. The pre-processor is configured to receive, while a first point-to-point signal is exchanged between the control module and the memory module, a second point-to-point signal which is a copy of the first point-to-point signal. The pre-processor is further configured to generate a pre-processed signal based on the second point-to-point signal, and to provide the pre-processed signal to the logic analyzer.
    Type: Grant
    Filed: March 18, 2002
    Date of Patent: December 6, 2005
    Assignee: EMC Corporation
    Inventors: Mark Zani, Ofer Porat, Alexander Rabinovich
  • Patent number: 6961052
    Abstract: A navigation control apparatus, such as used to control a cursor on a display of an IP telephone, has a geometry that allows a user to produce a diagonal motion of the cursor displayed on the IP telephone. The navigation control apparatus has a support mount having navigation contact terminals and navigation actuators aligned with the navigation contact terminals, each navigation actuator configured to form an electrical contact with each of the contact terminals. Each navigation actuator and contact terminal defines a travel distance for each navigation actuator. The navigation control apparatus has a hemispherical navigation controller pivot coupled to the support mount. A navigation controller actuates the navigation actuators and defines rounded recess that engages and rotates about the navigation controller pivot during an actuation procedure.
    Type: Grant
    Filed: March 17, 2003
    Date of Patent: November 1, 2005
    Assignee: Cisco Technology, Inc.
    Inventor: Seyamak Vaziri
  • Patent number: 6955410
    Abstract: An electronic system has electronic equipment (e.g., data storage equipment), and an electronic cabinet assembly which is configured to support the electronic equipment. The electronic cabinet assembly includes a first electronic cabinet frame defining a first set of electronic equipment bays to carry a first portion of the electronic equipment, and a second electronic cabinet frame defining a second set of electronic equipment bays to carry a second portion of the electronic equipment. The electronic cabinet assembly further includes a set of latch subassemblies which is configured to selectively (i) interconnect the first and second electronic cabinet frames, and (ii) disconnect the first and second electronic cabinet frames from each other. Accordingly, a user is capable of conveniently attaching the electronic cabinet frames together using the set of latch subassemblies, and optionally separating the electronic cabinet frames at a later time, without handling any nuts or bolts.
    Type: Grant
    Filed: March 28, 2003
    Date of Patent: October 18, 2005
    Assignee: EMC Corporation
    Inventors: Erik C. Nelson, Fernando Luis Castro
  • Patent number: 6952351
    Abstract: An insertion delay subassembly includes a support member which is configured to mount to the circuit board, and a lever coupled to the support member. The lever is configured to reside in a first orientation relative to the support member when the circuit board initially engages with a card cage, and pivot from the first orientation to a second orientation relative to the support member when the circuit board subsequently installs fully within the card cage. The insertion delay subassembly further includes an insertion delay latch coupled to one of the support member and the lever. The insertion delay latch is configured to selectively (i) block movement of the lever from the first orientation to the second orientation, and (ii) enable movement of the lever from the first orientation to the second orientation.
    Type: Grant
    Filed: January 14, 2003
    Date of Patent: October 4, 2005
    Assignee: Cisco Technology, Inc.
    Inventor: Cedric Elg
  • Patent number: 6952785
    Abstract: A data communications device includes a supervisory circuit, a power supply, and a power circuit. The power circuit includes a data communications port, a power supply connection coupled to the power supply, and a power controller coupled to the data communications port and the power supply connection. The power controller is configured to provide a power signal from the power supply connection to the data communications port in response to communication with the supervisory circuit. Upon loss of communication with the supervisory circuit, the power controller is configured to selectively continue to provide the power signal from the power supply connection to the data communications port when a local parameter has a first value, and discontinue providing the power signal from the power supply connection to the data communications port when the local parameter has a second value.
    Type: Grant
    Filed: March 4, 2002
    Date of Patent: October 4, 2005
    Assignee: Cisco Technology, Inc.
    Inventors: Wael William Diab, Roger Karam, Premkumar Jonnala
  • Patent number: 6948685
    Abstract: A locking device with a solenoid release actuator includes a housing, a plunger axially slidable within the housing, a biasing member for biasing the plunger in a first direction, one or more locking balls, and the locking balls disposed in an aperture in the housing, the plunger having a portion thereof containing at least one recess for receiving the balls, a member to be locked being held in a first locked position with the plunger in a first locking position and the balls in a radially outward position, the plunger being positioned axially such that the recesses therein are not in alignment with the apertures, and a solenoid coil disposed in the housing around the plunger, for inducing a magnetic force to move the plunger against the biasing member such that the recesses align with the apertures and the balls are movable radially inward into the recesses thereby releasing the locked member.
    Type: Grant
    Filed: October 27, 2003
    Date of Patent: September 27, 2005
    Assignee: HR Textron, Inc.
    Inventor: Dana D. Hawthorne
  • Patent number: 6948031
    Abstract: The invention is directed to techniques for transferring data within a data storage system that includes, among other things, an interconnection mechanism having a point-to-point channel between an interface circuit (e.g., a director) and a volatile memory cache circuit. The point-to-point channel allows the interface circuit and the volatile memory cache circuit to have contention free access to each other. One arrangement of the invention is directed to a data storage system having a volatile memory cache circuit that buffers data elements exchanged between a storage device and a host, an interface circuit that operates as an interface between the volatile memory cache circuit and at least one of a storage device and a host, and a point-to-point channel interconnected between the volatile memory cache circuit to the interface circuit.
    Type: Grant
    Filed: December 19, 2000
    Date of Patent: September 20, 2005
    Assignee: EMC Corporation
    Inventor: Kendell A. Chilton
  • Patent number: 6941308
    Abstract: A data storage system has storage devices, a processor which is configured to move data to and from the storage devices, and a bus coupled to the processor. The data storage system further includes a memory board having (i) an interface which couples to the bus, (ii) memory which is configured to store a doubly linked list data structure, and (iii) a memory board control circuit coupled to the interface and the memory. The memory board control circuit is capable of accessing the data structure. In particular, the memory board control circuit is configured to receive a modify command from the processor through the interface and the bus, atomically modify the data structure in accordance with the modify command, and provide a result to the processor through the interface and the bus in response to modifying the data structure.
    Type: Grant
    Filed: October 5, 2001
    Date of Patent: September 6, 2005
    Assignee: EMC Corporation
    Inventor: Kendell A. Chilton
  • Patent number: 6939161
    Abstract: A connection system has a device, and a cable assembly having a cable and a cable connector disposed at an end of the cable. The cable connector is configured to connect to the device. The connection system further includes a retaining clip configured to secure the cable connector to the device when the cable connector connects to the device. The retaining clip includes a main body defining a cavity and a central axis which extends through the cavity. The main body is configured to receive and hold the cable connector. The retaining clip further includes a set of latching arms attached to the main body. Each latching arm extends in a direction substantially parallel to the central axis and is configured to latch the main body to the device when the main body receives and holds the cable connector and when the cable connector connects to the device.
    Type: Grant
    Filed: November 12, 2003
    Date of Patent: September 6, 2005
    Assignee: Cisco Technology, Inc.
    Inventors: George Youzhi Yi, Tracy Winn
  • Patent number: 6934152
    Abstract: An electronic apparatus includes a first assembly and a second assembly. Each assembly has a circuit board defining a front side and a back side, a set of connectors mounted to the front side of that circuit board, and a heat sink disposed over the front side of that circuit board. The heat sink is configured to provide cooling to that assembly. The electronic apparatus further includes a coupling mechanism that couples the first and second assemblies together in a substantially parallel manner. The sets of connectors of the assemblies form a connection interface to concurrently connect the first and second assemblies to a backplane.
    Type: Grant
    Filed: June 27, 2003
    Date of Patent: August 23, 2005
    Assignee: EMC Corporation
    Inventor: Jonathan J. Barrow
  • Patent number: 6924908
    Abstract: Improved color management techniques use sample identifiers that define sample color areas having core areas and buffer areas adjacent the core areas. The core area defined by each sample identifier includes a unique set of colors. However, the buffer area defined by each sample identifier is a same common color (e.g., white). Sample color areas can be displayed or outputted (e.g., printed) adjacent to each other to form a region of sample color areas (e.g., a color image, a uniform region of color, etc.). Within such an arrangement, the buffer areas limit any ink bleed between the core areas of the sample color areas thus minimizing, or altogether avoiding, spectral interaction between inks of different core areas.
    Type: Grant
    Filed: May 31, 2000
    Date of Patent: August 2, 2005
    Assignee: Brown University Research Foundation
    Inventor: Benjamin B. Kimia
  • Patent number: 6925504
    Abstract: A technique can be used to obtain content (e.g., a live feed, pre-positioned content, etc.) from a content-originating device (a content source). The technique involves identifying a tree-based location-path having a series of locations which leads from the computerized device to the content-originating device. Each location includes a set of devices, and the set of devices of at least one location includes multiple devices. The technique further involves selecting a device-path from the computerized device to the content-originating device based on the identified location-path, and acquiring the content from the content-originating device from at least one of the devices along the selected device-path. The selected device-path includes at least one device of each location of the series of locations.
    Type: Grant
    Filed: January 31, 2002
    Date of Patent: August 2, 2005
    Assignee: Cisco Technology, Inc.
    Inventors: Barbara Liskov, John F. Carr
  • Patent number: 6874162
    Abstract: The present invention provides a reversible jacket that includes two independently functional flexible hoods that allow a person wearing the jacket to utilize one hood in one configuration of the jacket, and the other hood in a reversed configuration. A reversible jacket of the invention can find a variety of different applications, for example, it can be employed as a camouflage jacket in two different environments.
    Type: Grant
    Filed: March 25, 2003
    Date of Patent: April 5, 2005
    Assignee: Kaplan-Simon Co.
    Inventor: Valentino T. Boezi
  • Patent number: 6865643
    Abstract: A storage processor particularly suited to RAID systems provides high throughput for applications such as streaming video data. An embodiment is configured as an ASIC with a high degree of parallelism in its interconnections. Buffering may be used to maintain clear paths for priority data, such as user data being read or written, on shared channels.
    Type: Grant
    Filed: March 29, 2002
    Date of Patent: March 8, 2005
    Assignee: EMC Corporation
    Inventor: William Frederick Baxter, III
  • Patent number: 6856283
    Abstract: A power system for a phased-array radar system powers an antenna array with a single multiphase transformer. A plurality of AC/DC converters are connected in parallel between the single multiphase transformer and a common bus. The common bus is balanced with respect to chassis ground reducing noise and improving operating safety of the antenna. The AC/DC converters each has a multi-sloped characteristic which enables the converters to share power by modifying output impedance as a function of load without external control signals. The system also has several layers of fault detection.
    Type: Grant
    Filed: February 28, 2003
    Date of Patent: February 15, 2005
    Assignee: Raytheon Company
    Inventors: Boris Solomon Jacobson, John McGinty, Paul Christian Thomas
  • Patent number: 6853556
    Abstract: A motherboard assembly includes a motherboard, a circuit board, and an ejector assembly. The motherboard has a motherboard connector extending from a planar surface of the motherboard. The circuit board has a circuit board connector extending from a planar surface of the circuit board and coupled to the motherboard connector of the motherboard such that the planar surface of the circuit board orients substantially parallel to the planar surface of the motherboard. The ejector assembly orients between the motherboard and the circuit board. During an ejection procedure, the ejector assembly separates the motherboard connector and the circuit board connector while minimizing bending of either the circuit board or the motherboard. By limiting bending of either the circuit board or the motherboard, the ejector assembly minimizes damage to electrical traces or components carried by either the circuit board or the motherboard during the separation process.
    Type: Grant
    Filed: January 12, 2004
    Date of Patent: February 8, 2005
    Assignee: Cisco Techonology, Inc.
    Inventors: Gary Lynn Myers, Jack Brown Rector, III, Michael Chern
  • Patent number: 6839935
    Abstract: A system cleans a set of optical connectors. The system includes a fluid source, a vacuum source, a support member which defines a cleaning device edge, and a set of cleaning devices. Each cleaning device includes (i) a fluid intake member which connects to the fluid source, (ii) a fluid output member which connects to the vacuum source, and (iii) a cleaning head which connects to the fluid intake member and the fluid output member. Each cleaning device is disposed along the cleaning device edge of the support member. The set of cleaning devices is configured to (a) align over a set of optical interfaces of the set of optical connectors, (b) direct fluid (e.g., gas, gaseous snow, etc.) from the fluid source toward the set of optical interfaces, and (c) draw the directed fluid away from the set of optical interfaces and toward the vacuum source.
    Type: Grant
    Filed: May 29, 2002
    Date of Patent: January 11, 2005
    Assignee: Teradyne, Inc.
    Inventors: Sepehr Kiani, Chung Yi Chou, David Jacob Gessel, Richard F. Roth, John A. Lehman
  • Patent number: 6832858
    Abstract: A module houses a set of fiber optic interfaces. The module includes a fiber optic interface holder, which is configured to hold the set of fiber optic interfaces, and a shroud coupled to the fiber optic interface holder. The shroud is configured to move relative to the fiber optic interface holder along an axis defined by the fiber optic interface holder such that, when the fiber optic interface holder holds the set of fiber optic interfaces, the shroud (i) protects the set of fiber optic interfaces when the shroud is in a first location along the axis defined by the fiber optic interface holder, and (ii) exposes the set of fiber optic interfaces when the shroud is in a second location along the axis defined by the fiber optic interface holder.
    Type: Grant
    Filed: September 13, 2002
    Date of Patent: December 21, 2004
    Assignee: Teradyne, Inc.
    Inventors: Richard F. Roth, Sepehr Kiani, Joe J. George, William E. Howard
  • Patent number: 6832265
    Abstract: The invention is directed to techniques for moving data elements within a data communications device which prioritizes handling transmit interrupts over handling receive interrupts. Preferably, while attending to transmit interrupts, the device gives priority to the “hungriest” interfaces. In one arrangement, the device includes multiple network interfaces which are capable of transmitting and receiving data elements with a network, and a controller, coupled to the interfaces.
    Type: Grant
    Filed: January 7, 2000
    Date of Patent: December 14, 2004
    Assignee: Cisco Technology, Inc.
    Inventors: Qingming Ma, Saravanan Agasaveeran, Satish Gannu
  • Patent number: 6830464
    Abstract: A technique connects a module to a connector. The technique involves inserting the module into a connector base of the connector, and moving a first connector lever of the connector against the module and a second connector lever of the connector against the module. The technique further involves installing a clip onto the connector such that the clip provides a first force on the first connector lever and a second force on the second connector lever to hold the module to the connector. The presence of the clip prevents the connector levers from moving away from the module (e.g., separating from the module sides) and allowing the module to escape from the connector.
    Type: Grant
    Filed: July 30, 2002
    Date of Patent: December 14, 2004
    Assignee: Cisco Technology, Inc.
    Inventor: Steven Darren Friend