Patents by Inventor Daniel A. West

Daniel A. West 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: 20210211972
    Abstract: A user equipment (UE) supports communication over a first (lower) frequency range and a second (higher) frequency range. The UE determines an extent of preference of the second frequency range over the first frequency range, e.g., based on one or more of the following: sensor measurements; physical channel measurements; battery conditions; weather conditions; voice call activity; indoor/outdoor/in-car status; learned relationships between previous location-time conditions and performance on the second frequency range; etc. The UE device may control search activity and/or measurement activity on the second frequency range based on the preference extent, e.g., by controlling rates of repetition of search and/or measurement on the second frequency range, or by adding a measurement bias to a measurement reporting threshold, or by adding a delay to a measurement reporting time for a measurement, or by disabling search and measurement on the second frequency range.
    Type: Application
    Filed: October 29, 2020
    Publication date: July 8, 2021
    Inventors: Wei Zhang, Alosious Pradeep Prabhakar, Pengkai Zhao, Vijay Venkataraman, Junsung Lim, Zhu Ji, Johnson O. Sebeni, Yu-Lin Wang, Galib A. Mohiuddin, Sriram Subramanian, Shiva Krishna Narra, Madhukar K. Shanbhag, Sanjeevi Balasubramanian, Daniel A. West, Rohit R. Matolia
  • Patent number: 8775113
    Abstract: Circuits, methods, and apparatus for testing media devices. One example provides a test system for testing a number of media players. One or more computers can control the testing of the media players and collect results. Each media player tested may be connected to a computer via an adapter. The adapter may include a connection control circuit and an interface. The connection control circuit may connect and disconnect a power supply to the media player being tested. The voltage waveform produced when the power supply is connected and disconnected may be designed to mimic the voltage waveform produced when a user connects and disconnects a cable or docking station from the media player. The interface may receive commands to provide specific instructions to the media player. The interface may monitor the status and activities performed by the media player and report back to the computer.
    Type: Grant
    Filed: September 26, 2008
    Date of Patent: July 8, 2014
    Assignee: Apple Inc.
    Inventors: David M. Powers, Christian Huffman, Daniel A. West
  • Publication number: 20090192752
    Abstract: Circuits, methods, and apparatus for testing media devices. One example provides a test system for testing a number of media players. One or more computers can control the testing of the media players and collect results. Each media player tested may be connected to a computer via an adapter. The adapter may include a connection control circuit and an interface. The connection control circuit may connect and disconnect a power supply to the media player being tested. The voltage waveform produced when the power supply is connected and disconnected may be designed to mimic the voltage waveform produced when a user connects and disconnects a cable or docking station from the media player. The interface may receive commands to provide specific instructions to the media player. The interface may monitor the status and activities performed by the media player and report back to the computer.
    Type: Application
    Filed: September 26, 2008
    Publication date: July 30, 2009
    Applicant: Apple Inc.
    Inventors: David M. POWERS, Christian Huffman, Daniel A. West
  • Patent number: 5319421
    Abstract: A self calibrating system for measuring concentration of a material carried in a fluid medium. The system has a flow cell means for measuring the transmissivity of a fluid medium passing therethrough, a first means for delivering a first fluid containing material carried in fluid medium, and a second means for delivering a clear dispersant fluid.
    Type: Grant
    Filed: September 22, 1992
    Date of Patent: June 7, 1994
    Assignee: Xerox Corporation
    Inventor: Daniel A. West
  • Patent number: 4776528
    Abstract: In a reel-to-reel web transport (such as a magnetic tape recorder), apparatus is provided for accurately positioning a takeup reel to receive the lead end of a web. The takeup reel is rotated in web supply and takeup directions by a brushless direct current (DC) motor. A magnetic hysteresis brake is coupled to the takeup reel when the reel is rotated in a web supply direction. The rotational position of the takeup reel to receive the lead end of a web is coincident with a stable torque equilibrium position of the DC motor.
    Type: Grant
    Filed: September 3, 1987
    Date of Patent: October 11, 1988
    Assignee: Eastman Kodak Company
    Inventor: Daniel A. West
  • Patent number: 4674897
    Abstract: An improved dot matrix actuator is provided which includes a magnetic circuit formed of a yoke assembly and a pivotal armature. The armature is pivotally supported with respect to the yoke by means of a flexure assembly which eliminates the need for a true pivot between the two elements. The elements are shaped so as to maintain a constant small air gap therebetween so as to maximize the magnetic efficiency of the device while eliminating wear. The device is operated just below saturation of the magnetic circuit in order to maximize efficiency. In addition, the actuator includes several features for maximizing its speed and operational efficiency.
    Type: Grant
    Filed: December 9, 1985
    Date of Patent: June 23, 1987
    Assignee: Dataproducts, Inc.
    Inventors: Daniel A. West, Lawrence S. Nyi
  • Patent number: 4634302
    Abstract: An improved dot matrix actuator is provided which includes a magnetic circuit formed of a yoke assembly and a pivotal armature. The armature is pivotally supported with respect to the yoke by means of a flexure assembly which eliminates the need for a true pivot between the two elements. The elements are shaped so as to maintain a constant small air gap therebetween so as to maximize the magnetic efficiency of the device while eliminating wear. The device is operated just below saturation of the magnetic circuit in order to maximize efficiency. In addition, the actuator includes several features for maximizing its speed and operational efficiency.
    Type: Grant
    Filed: December 9, 1985
    Date of Patent: January 6, 1987
    Assignee: Dataproducts, Inc.
    Inventors: Daniel A. West, Lawrence S. Nyi, Ramon J. Ravelo
  • Patent number: 4634303
    Abstract: An improved dot matrix actuator is provided which includes a magnetic circuit formed of a yoke assembly and a pivotal armature. The armature is pivotally supported with respect to the yoke by means of a flexure assembly which eliminates the need for a true pivot between the two elements. The elements are shaped so as to maintain a constant small air gap therebetween so as to maximize the magnetic efficiency of the device while eliminating wear. The device is operated just below saturation of the magnetic circuit in order to maximize efficiency. In addition, the actuator includes several features for maximizing its speed and operational efficiency.
    Type: Grant
    Filed: December 9, 1985
    Date of Patent: January 6, 1987
    Assignee: Dataproducts, Inc.
    Inventors: Daniel A. West, Lawrence S. Nyi, Ramon J. Ravelo
  • Patent number: 4585361
    Abstract: An improved dot matrix actuator is provided which includes a magnetic circuit formed of a yoke assembly and a pivotal armature. The armature is pivotally supported with respect to the yoke by means of a flexure assembly which eliminates the need for a true pivot between the two elements. The elements are shaped so as to maintain a constant small air gap therebetween so as to maximize the magnetic efficiency of the device while eliminating wear. The device is operated just below saturation of the magnetic circuit in order to maximize efficiency. In addition, the actuator includes several features for maximizing its speed and operational efficiency.
    Type: Grant
    Filed: August 26, 1985
    Date of Patent: April 29, 1986
    Assignee: Dataproducts, Inc.
    Inventors: Daniel A. West, Lawrence S. Nyi