Patents by Inventor Robert J. Davies

Robert J. Davies 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: 5999300
    Abstract: Bandwidth reduction methods and apparatus that offset the effects of dispersion on a signal transmitted through an optical fiber. The apparatus and methods employ a generator of modulated optical signals in cascade with a modulator. One of the generator and the modulator may be an optical intensity or amplitude modulator and the other a phase (or frequency) modulator. With the application of specific signals, the cascaded generator and modulator produce an optical signal with reduced energy in one half of the transmission bandwidth. One important benefit in the method is the fact that by exploiting the less obvious spectral characteristics of single sideband signals, a simple modulator design is achieved. All of the designs exploit a method of generating analytic signals via hybrid modulation.
    Type: Grant
    Filed: June 12, 1997
    Date of Patent: December 7, 1999
    Assignee: Telecommunications Research Laboratories
    Inventors: Robert J. Davies, Jan Conradi, David E. Dodds
  • Patent number: 5949926
    Abstract: An apparatus for implementing post-detection dispersion compensation on a minimum-phase optical single sideband signal propagating along an optical fiber, in which the optical fiber induces phase distortion on the minimum-phase optical single sideband signal.
    Type: Grant
    Filed: December 15, 1997
    Date of Patent: September 7, 1999
    Assignee: Telecommunications Research Laboratories
    Inventor: Robert J. Davies
  • Patent number: 5412650
    Abstract: In a cordless communications system, such as DECT, data is transmitted to or from a data terminal in an assigned channel in each TDMA frame. In order to accommodate data terminals having lower data rates than the capacity of the channel, such a data terminal accumulates its data during several frames in a buffer store until the accumulated data corresponds to the channel capacity, and is then transmitted in the frame in which that occurs. In order to utilize such interruptions in transmission from a plurality of low rate data terminals, the system control terminal treats each successive sequence of a predetermined number of frames (FR0 to FR15) as a multiframe, and transmissions from low rate data terminals are assigned to multiplexed frames which minimize the number of unoccupied channels in each multiframe.
    Type: Grant
    Filed: August 31, 1993
    Date of Patent: May 2, 1995
    Assignee: U.S. Philips Corporation
    Inventor: Robert J. Davies
  • Patent number: 5318178
    Abstract: A holding device including a sheet member (1) shaped and configured to form a channel (5) therein, slots (7a, 7b) in the sheet member to receive the rims (11) of a plurality of articles each having a rim, and a separate bridge part (20) connected to the sheet member (1) so as to span the channel (5) to maintain the channel (5) in the sheet member (1) and thereby maintain the articles in engagement with the sheet member (1) in use.
    Type: Grant
    Filed: June 15, 1992
    Date of Patent: June 7, 1994
    Assignee: Printpac-UEB Limited
    Inventors: Robert J. Davies, Alexander G. Blair, Clifford R. Moss
  • Patent number: 5169037
    Abstract: A product dispenser includes a unique product bag/valve configuration. The product is stored in the product bag. Pressure in the container surrounding the bag determines the dispensing pressure. The valve has a valve extender with a unique shape to enhance sealing the valve to the bag. The product bag includes a gusset along a bottom portion. The gusset opens when product is introduced into the bag. The gusset supports the bag when in contact with a bottom dome shaped portion of the container.
    Type: Grant
    Filed: December 27, 1991
    Date of Patent: December 8, 1992
    Assignee: CCL Industries Inc.
    Inventors: Robert J. Davies, Patrick J. Gleeson, Michael J. Moran
  • Patent number: D446403
    Type: Grant
    Filed: July 18, 2000
    Date of Patent: August 14, 2001
    Inventor: Robert J. Davies
  • Patent number: RE35540
    Abstract: A product dispenser include a unique product bag/valve configuration. The product is stored in the product bag. Pressure in the container surrounding the bag determines the dispensing pressure. The valve has a valve extender with a unique shape to enhance sealing the valve to the bag. The product bag includes a gusset along a bottom portion. The gusset opens when product is introduced into the bag. The gusset supports the bag when in contact with a bottom dome shaped portion of the container.
    Type: Grant
    Filed: August 26, 1994
    Date of Patent: June 24, 1997
    Assignee: CCL Industries, Inc.
    Inventors: Robert J. Davies, Patrick J. Gleeson, Michael J. Moran