Patents by Inventor Colin D. Smith

Colin D. Smith 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: 10411765
    Abstract: A communication device includes a processor subsystem that is in communication with a communication module, which is communicatively coupled to a millimeter wave (mmWave) antenna array to transmit and receive signals. The processor subsystem executes a computer program product of a near-field detection application in memory to perform a method. The mmWave antenna array transmits an mmWave signal that is swept across a range of frequencies and receives any back-scattered signals in the range of frequencies. The processor subsystem determines whether a near-field obstruction exists based on magnitude and phase characteristics of the received back-scattered signals. In response to determining that a near-field obstruction exists, the processor subsystem perform a selected one of: (i) altering a transmission beam transmitted by the communication device; and (ii) triggering an application to execute on the communication device, the application intended to interact with a user of the communication device.
    Type: Grant
    Filed: December 22, 2017
    Date of Patent: September 10, 2019
    Assignee: Motorola Mobility LLC
    Inventors: Md Rashidul Islam, Hugh K. Smith, Colin D. Frank
  • Publication number: 20190199405
    Abstract: A communication device includes a processor subsystem that is in communication with a communication module, which is communicatively coupled to a millimeter wave (mmWave) antenna array to transmit and receive signals. The processor subsystem executes a computer program product of a near-field detection application in memory to perform a method. The mmWave antenna array transmits an mmWave signal that is swept across a range of frequencies and receives any back-scattered signals in the range of frequencies. The processor subsystem determines whether a near-field obstruction exists based on magnitude and phase characteristics of the received back-scattered signals. In response to determining that a near-field obstruction exists, the processor subsystem perform a selected one of: (i) altering a transmission beam transmitted by the communication device; and (ii) triggering an application to execute on the communication device, the application intended to interact with a user of the communication device.
    Type: Application
    Filed: December 22, 2017
    Publication date: June 27, 2019
    Inventors: MD RASHIDUL ISLAM, HUGH K. SMITH, COLIN D. FRANK
  • Patent number: 8272835
    Abstract: A gas turbine engine comprising of a turbine blade, an adjustable casing, and a clearance control arrangement. The clearance control arrangement further comprises an actuator operatively connected to a piston within a cylinder wherein the piston divides the cylinder by a sealing engagement with a wall of the cylinder into a first volume and a second volume. The first volume is operatively connected to a first piezo electric pump that increases a pressure in the first volume, and the second volume is operatively connected to a second piezo electric pump that increases a second pressure in the second volume, such that the relative displacement of the piston is determined by a pressure balance between the first and second pressure.
    Type: Grant
    Filed: May 28, 2009
    Date of Patent: September 25, 2012
    Assignee: Rolls-Royce PLC
    Inventor: Colin D. Smith
  • Publication number: 20100003125
    Abstract: With regard to gas turbine engines it is necessary to maintain clearance between a rotating blade assembly and a casing to maintain efficiency. Thermal expansion and other factors are transients mean it is advantageous to provide active adjustment. By utilisation of piezo electric pumps 51, 52 operable at relatively high predetermined temperatures with a piston 54 and a cylinder 53 to cause displacement of an actuator 58 rapid adjustment is achieved. The cylinder 53 is divided into a first volume 55 and a second volume 56 so that each piezo electric pump 51, 52 can pressurise one volume 55, 56. A pressure balance is created across the piston 54 in order to position the associated actuator 58. A vent valve 67 can be used to effectively suspend the pressure balance across the piston 54 between the volumes 55, 56 for rapid displacement.
    Type: Application
    Filed: May 28, 2009
    Publication date: January 7, 2010
    Applicant: ROLLS-ROYCE PLC
    Inventor: Colin D. Smith
  • Patent number: 5890052
    Abstract: A portable wireless telephone structure in which a foldable wallet carries a telephone in addition to having a pocket to house paper currency. The telephone is exposed for use with the wallet in open condition and is housed with the wallet in closed condition. The telephone has a communication mode to a user monetary function to permit telephonic transfer of monetary units. Thus, the telephone may eliminate need for carrying credit or bank cards in the wallet except for the telephone use with a "smart" card for telephonic transfer of monetary amounts to the "smart" card for transaction purposes.
    Type: Grant
    Filed: December 16, 1996
    Date of Patent: March 30, 1999
    Assignee: Northern Telecom Limited
    Inventors: Clifford D. Read, Jeffrey L. Fairless, Desmond J. Ryan, Colin D. Smith, Brian F. Beaton
  • Patent number: 5483806
    Abstract: A refrigeration system using air as the refrigerant comprises a compressor which compresses air to 84 bar g. The compressed air is cooled first by cooling water and then by returning air in a plate-fin heat exchanger before being expanded to 59 bar g in an expander. The expanded air at -61.degree. C. is passed through indirect cooling coils in a cold store which it leaves at -45.degree. C. This air is then passed through the plate-fin heat exchanger before being recycled to the compressor. The refrigeration delivered is about 1.05 kw refrigeration/kw power input.
    Type: Grant
    Filed: May 12, 1995
    Date of Patent: January 16, 1996
    Inventors: Jeremy P. Miller, Colin D. Smith, Rodney J. Allam, Anthony K. J. Topham
  • Patent number: 5421740
    Abstract: Electronic circuit pack and mounting frame combination in which a mating connector joined to conductors coming in for connection to the circuit pack, is held within a connector holder for protection and connection purposes. Straight line action of the connector holder is ensured to ensure proper alignment of the mating connector with the circuit pack connector. It is preferable for the connector holder to be permanently attached to the frame to support the weight of the holder and minimize strain upon the incoming conductors.
    Type: Grant
    Filed: December 2, 1993
    Date of Patent: June 6, 1995
    Assignee: Northern Telecom Limited
    Inventors: Robert C. Dittburner, Joseph J. Lommen, Adrianus P. Van Gaal, Nicholas J. Pitt, Colin D. Smith, Michael J. Coleman
  • Patent number: 5036673
    Abstract: A freezer (1) which comprises a drum (2) is characterized in that a cylinder (12) is disposed in said drum (2), and a fan (14) is provided for circulating cryogen through the space (20) between the outer surface of the cylinder (12) and the inner surface of the drum (2). The outer surface of the drum (2) is provided with a plurality of grooves (4) of parabolic cross-section. In use, droplets (23) of liquid egg are dropped on to the grooves (4) where they freeze individually. The frozen particles fall away from the drum as they approach the lowermost point of travel of the drum (2) and form an attractive granular product.
    Type: Grant
    Filed: December 27, 1989
    Date of Patent: August 6, 1991
    Assignee: Air Products and Chemicals, Inc.
    Inventors: Jeremy P. Miller, Colin D. Smith
  • Patent number: 4914927
    Abstract: A freezer (1) which comprises a drum (2) is characterized in that a cylinder (12) is disposed in said drum (2), and a fan (14) is provided for circulating cryogen through the space (20) between the outer surface of the cylinder (12) and the inner surface of the drum (2). The outer surface of the drum (2) is provided with a plurality of grooves (4) of parabolic cross-section. In use, droplets (23) of liquid egg are dropped on to the grooves (4) where they freeze individually. The frozen particles fall away from the drum as they approach the lowermost point of travel of the drum (2) and form an attractive granular product.
    Type: Grant
    Filed: January 25, 1989
    Date of Patent: April 10, 1990
    Assignee: Air Products and Chemicals, Inc.
    Inventors: Jeremy P. Miller, Colin D. Smith
  • Patent number: 4391585
    Abstract: A method of operating a continuous ceramic kiln having a decarbonization zone characterized in that oxygen or oxygen enriched air is added to the decarbonization zone to maintain the average oxygen concentration in the decarbonization zone at or about a predetermined level. The predetermined level need only be adjusted for different throughputs and need not be adjusted for moderate changes in the amount of organic matter in the clay.
    Type: Grant
    Filed: March 20, 1981
    Date of Patent: July 5, 1983
    Assignee: Air Products and Chemicals, Inc.
    Inventors: Eric K. Riley, Colin D. Smith, Garry J. Yates, Norris W. Shepherd