Patents by Inventor Colin Richard Smithers

Colin Richard Smithers 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).

  • Vehicle locating unit with input voltage protection
    Patent number: 7511606
    Abstract: A vehicle locating unit with a receiver for receiving a signal from a network of communication sources, a transponder activated when a communication source sends a message to the receiver, and a power supply regulating circuit for regulating a nominal input voltage and powering the receiver and the transponder. A protection circuit is responsive to an injected input voltage and configured to clamp the injected (high level) input voltage at a predetermined maximum voltage.
    Type: Grant
    Filed: May 18, 2005
    Date of Patent: March 31, 2009
    Assignee: LoJack Operating Company LP
    Inventors: Frank Romano, Sampath Krishna, Son Nguyen, Jesse Rhodes, Philip Grahame Crewe, Daniel Jonathan Finchley Cletheroe, Mark Marsden, Steven Walter Greendale, Nigel James Watson, Ian Christopher Stroud, Timothy David Howe, Gerard Edward Smith, Colin Richard Smithers
  • Method of transmitting and receiving data, system and receiver therefor
    Patent number: 6522698
    Abstract: A method and apparatus for transmitting and receiving data, wherein a narrow band data signal is transmitted at an unknown frequency within a known range of frequencies and received, and, at the receiver, the range of frequencies is divided into plural frequency bands each of width less than the uncertainty in the transmission frequency of the data signal, with the presence of said data signal detected in at least one of said frequency bands and thereupon demodulated.
    Type: Grant
    Filed: November 25, 1998
    Date of Patent: February 18, 2003
    Inventors: Clive Russell Irving, David John Spreadbury, Colin Richard Smithers, Timothy Charles Mace
  • System for remote data collection
    Patent number: 6163276
    Abstract: A remote data collection system for collecting usage data from an endpoint includes a monitoring module coupled to the endpoint, the monitoring module having a wireless transmitter to transmit the usage data. The system also includes a receiver to receive usage data from the wireless transmitter of the monitoring module, the receiver capable of receiving in parallel data transmitted at arbitrary frequencies within a radio channel.
    Type: Grant
    Filed: May 17, 1999
    Date of Patent: December 19, 2000
    Assignee: CellNet Data Systems, Inc.
    Inventors: Clive Russell Irving, Gregory Vincent Luxford, Andrew Gordon Summers, Colin Richard Smithers
  • Communications system
    Patent number: 6130914
    Abstract: A point to multipoint two-way communications systems in which a base station transmits to a remote station ("outstation") on a frequency derived by the base station from the frequency of a previous transmission received by said base station from said outstation.
    Type: Grant
    Filed: June 10, 1997
    Date of Patent: October 10, 2000
    Assignee: Plextek Limited
    Inventor: Colin Richard Smithers