Patents Represented by Attorney Aka Chan LLP

Find this attorney in the Justia Lawyer Directory

  • Source and detector sensor arrangement
    Patent number: 7538865
    Abstract: A device has various arrangements of source and detector sensors. In specific implementations, the device has at least four structures, one source and three detectors, two sources and two detectors, and other arrangement variations. In a specific implementation, between a source structure and a detector structure, there are not any other intervening sensor structures. The device may be part of a medical device that is used to monitor or measure oxygen saturation levels in a tissue.
    Type: Grant
    Filed: January 2, 2008
    Date of Patent: May 26, 2009
    Assignee: ViOptix, Inc.
    Inventors: Robert E Lash, Jimmy Jian-min Mao, Qiong Lin
  • Automatically routing nets according to current density rules
    Patent number: 7530040
    Abstract: A technique will automatically route interconnect of an integrated circuit while taking into consideration current density rules. In an implementation, the technique uses a shape-based approach where a grid is not used. Based on data input including current density and a frequency of each net, the technique will determine the current requirements for each net. In an implementation, the technique forms a Steiner tree for a net, and routs using the Steiner tree. The technique widens nets having greater current requirements; adjacent wiring may be pushed aside to create sufficient space for wider nets.
    Type: Grant
    Filed: May 16, 2006
    Date of Patent: May 5, 2009
    Assignee: Pulsic Limited
    Inventors: Graham Balsdon, Jeremy Birch, Mark Williams, Mark Waller, Tim Parker, Fumiaki Sato
  • Medical device probe with source and detector sensors
    Patent number: 7525647
    Abstract: A probe for a medical device with source and detector sensors is used to monitor or measure, or both, oxygen saturation levels in a tissue. In various specific implementations, the probe has at least two sources and at least one detector, at least one source and at least two detectors, and at least two sources and at least four detectors. A source of the probe is connected to at least one radiation source, which is external to the probe. A detector of the probe is connected to a photodetector, which is external to the probe.
    Type: Grant
    Filed: December 21, 2007
    Date of Patent: April 28, 2009
    Assignee: ViOptix, Inc.
    Inventors: Robert E Lash, Jimmy Jian-min Mao, Qiong Lin
  • Optical failure detection using polarization
    Patent number: 7512336
    Abstract: Systems and methods for evaluating an optical communication link are provided. The evaluation is based on a polarization analysis of received optical power. Such an analysis is able to differentiate between received noise and received optical signal power, even for typical multi-channel signals. By appropriately analyzing the polarization of received optical power, the link quality can be evaluated. Failures may be detected and optical signal to noise ratio may be measured.
    Type: Grant
    Filed: June 10, 2004
    Date of Patent: March 31, 2009
    Assignee: Cisco Technology, Inc.
    Inventors: Fausto Meli, Valerio Viscardi
  • Bi-directional line switched ring support for path trace monitoring on a protection path
    Patent number: 7509438
    Abstract: Methods and apparatus for enabling a protection path within a network to be monitored are disclosed. According to one aspect of the present invention, a method for sending traffic on a path within an optical network system that has a plurality of nodes and a plurality of fibers includes identifying a circuit path within the optical network system which is associated with a first node and includes at least one fiber. The method also includes sending a signal that includes embedded path trace information on the circuit path from the first node on the fiber, and determining when the signal is received from the first node by a second node over the fiber. Finally, the method includes broadcasting path trace information to the plurality of nodes when it is determined that the signal is not received by the second node over the fiber.
    Type: Grant
    Filed: February 14, 2003
    Date of Patent: March 24, 2009
    Assignee: Cisco Technology, Inc.
    Inventors: Chenchuan Lu, Philippe Daniel
  • Routing system and method for transparently rocovering routing states after a failover or during a software upgrade
    Patent number: 7506194
    Abstract: Methods and apparatus for efficiently enabling routing states to be recovered after a failover or during a software upgrade in a system which supports graceful restart and stateful switchover are disclosed. According to one aspect of the present invention, a method for restarting a network device which has a plurality of routers and is in communication with a first peer being arranged to support graceful restart and a second peer includes performing a graceful restart with respect to the first peer. A peer transparent failover is performed with respect to the second peer. The graceful restart and the peer transparent failover are performed in response to a failure associated with the network device.
    Type: Grant
    Filed: March 24, 2004
    Date of Patent: March 17, 2009
    Assignee: Cisco Technology, Inc.
    Inventors: Chandrashekhar Appanna, Ruchi Kapoor, Barry Friedman, Himanshu Shah, Gargi Nalawade, Shyam Suri, John Harper
  • Test tool for application programming interfaces
    Patent number: 7506311
    Abstract: Methods and apparatus for enabling the framework and the application code associated with an application programming interface (API) to be efficiently and comprehensively tested are disclosed. According to one aspect of the present invention, a structure that defines an API test in declarative metadata includes an entity to be tested, a first metadata arrangement, and a second metadata arrangement. The first metadata arrangement includes any data to be used when the entity is tested, and the second metadata arrangement includes any expected outputs associated with testing the entity.
    Type: Grant
    Filed: November 17, 2004
    Date of Patent: March 17, 2009
    Assignee: Oracle International Corporation
    Inventors: Sowmya Subramanian, Larry Dean Harris, Sandeep Khemani, Thomas W. Nickerson, George A. Buzsaki, Michael De Groot
  • Sourcing internal signals to output pins of an integrated circuit through sequential multiplexing
    Patent number: 7500162
    Abstract: An integrated circuit with a multiplexer system and a control circuit is described. The multiplexer system has an output terminal connected to an output pin of the integrated circuit and input terminals connected to internal nodes of the integrated circuit. In a normal mode the control circuit generates the control signals so that any one of the internal nodes is connected to the output pin so that the integrated circuit can function flexibly. In a test mode so that a different internal node is connected to the output pin in each cycle of a test clock signal.
    Type: Grant
    Filed: June 2, 2005
    Date of Patent: March 3, 2009
    Assignee: CPU Technology, Inc.
    Inventor: Alan G. Smith
  • System for tracking files transmitted over the internet
    Patent number: 7500004
    Abstract: A method for tracking digital files transmitted over the Internet by placing certain identifying indicia within a file, and monitoring selected sites through which Internet traffic is transmitted, to determine the source and destination of a transmission containing a file with particular identifying indicia. Identifying indicia (‘ID’) is placed in the header of each digital file whose transmission over the Internet is to be monitored. A data communications monitoring device is installed at a Internet service provider's (ISP's) facility. The monitoring device intercepts packets received by the ISP. These intercepted packets are then examined to determine whether they contain an ID of interest. If a sought ID is found within the packet, the source and destination fields in the Internet Protocol (IP) header are logged, along with the ID and other information, in a database.
    Type: Grant
    Filed: December 29, 1999
    Date of Patent: March 3, 2009
    Inventor: Gregg Homer
  • Method and apparatus for computing a path in a system with nodal and link diverse constraints
    Patent number: 7490165
    Abstract: Methods and apparatus for defining an alternate circuit path within a network are described. According to one aspect of the present invention, a device for computing circuit paths between a first node and a second node within a network that has a plurality of elements includes a route generator and a list mechanism. The route generator computes a primary circuit path between the first node and the second node such that the primary circuit path includes a first element. The list mechanism identifies the first element as being inaccessible to an alternate circuit path. Using the list mechanism, the route generator computes an alternate circuit path that does not include the first element identified by the list mechanism. In one embodiment, the first element is a link. In another embodiment, the first element is a node.
    Type: Grant
    Filed: July 18, 2001
    Date of Patent: February 10, 2009
    Assignee: Cisco Technology, Inc.
    Inventors: Suresh Katukam, Venkataraman Anand
  • Weighted attributes on connections and closest connection match from a connection cache
    Patent number: 7486618
    Abstract: Techniques for obtaining a closest match connection to a resource (e.g., a database) from a cache are provided. The request specifies desired attribute values for the connection and a closest match connection is identified. The attributes can have associated weights that are utilized in order to determine the closest match connection to satisfy the connection request.
    Type: Grant
    Filed: May 27, 2003
    Date of Patent: February 3, 2009
    Assignee: Oracle International Corporation
    Inventors: Rajkumar Irudayaraj, Richard Ou
  • Add/drop multiplexer for OTN/DWDM rings utilizing a pair of muxponders
    Patent number: 7469103
    Abstract: Techniques for providing ADM functionality to an optical (OTN/DWDM) ring are provided. A pair of muxponder components are utilized to form a transparent ADM. In one muxponder, transmit signals are sent in a first direction and receive signals are received from a second direction. In the other muxponder, transmit signals are sent in the second direction and received from the first direction.
    Type: Grant
    Filed: April 8, 2005
    Date of Patent: December 23, 2008
    Assignee: Cisco Technology, Inc.
    Inventors: Stefano Binetti, Luca Della Chiesa
  • Media player case
    Patent number: D583145
    Type: Grant
    Filed: July 14, 2008
    Date of Patent: December 23, 2008
    Inventors: Jeff Muncy, Joy Kovaleski
  • Sensor pad
    Patent number: D584414
    Type: Grant
    Filed: February 21, 2008
    Date of Patent: January 6, 2009
    Assignee: ViOptix, Inc.
    Inventors: Robert E Lash, Jimmy Jian-min Mao
  • Hair clip
    Patent number: D586503
    Type: Grant
    Filed: May 23, 2007
    Date of Patent: February 10, 2009
    Inventor: Janet K. Lau
  • Cerebral sensor
    Patent number: D587375
    Type: Grant
    Filed: March 13, 2008
    Date of Patent: February 24, 2009
    Assignee: ViOptix, Inc.
    Inventors: Jimmy Jian-min Mao, Robert E. Lash
  • Portable electronic device case
    Patent number: D587896
    Type: Grant
    Filed: August 27, 2008
    Date of Patent: March 10, 2009
    Assignee: Incase Designs Corporation
    Inventor: Moses Aipa
  • Integrated tabbed note and clip
    Patent number: D588197
    Type: Grant
    Filed: January 22, 2007
    Date of Patent: March 10, 2009
    Inventor: Janet K. Lau
  • Trailer-hitch flagpole
    Patent number: D592110
    Type: Grant
    Filed: September 25, 2008
    Date of Patent: May 12, 2009
    Inventor: Mark E. Oakley
  • Portion of surgical elevator with sensor
    Patent number: D593201
    Type: Grant
    Filed: July 24, 2008
    Date of Patent: May 26, 2009
    Assignee: ViOptix, Inc.
    Inventors: Robert E. Lash, Jimmy Jian-min Mao