Patents by Inventor Robert R. Asprey

Robert R. Asprey 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: 20120137652
    Abstract: A method for developing thrust from current flow is disclosed. In a first embodiment, a plurality of loops (201) of wire wound in an asymmetrical pattern is physically connected to a source of electrical power (204), developing thrust in a direction (210). In a second embodiment, a plurality of stationary vanes (306, 307) are provided, and charged with alternating polarity high voltage. A rotor having U-shaped conductors (305) attached thereto rotates the conductors (305) past the vanes. As the rotor turns, an alternating current is electrostatically induced in the legs of the conductors (305), the current generating thrust (304). In two other embodiments, a U-shaped conductive path (405, 506) is inductively coupled to an RF or high frequency power supply in order to generate an alternating current in the conductive paths, thereby generating thrust.
    Type: Application
    Filed: October 10, 2006
    Publication date: June 7, 2012
    Inventors: Margaret W. Asprey, Robert R. Asprey
  • Publication number: 20100045864
    Abstract: A transmission system for transmitting analog color video signals wherein a cable comprising multiple twisted pairs is employed, and certain of these pairs are coupled to carry selected color signals as a function of the delay provided by particular twist rates. In certain instances, selected signal delay devices are connected in circuit with certain twisted pairs. By such an arrangement, it has been found that relatively long distances between a computer and a monitor may be spanned by relatively low-cost, twisted pair cable commonly used for telephone communications.
    Type: Application
    Filed: October 26, 2009
    Publication date: February 25, 2010
    Applicant: AVOCENT CORPORATION
    Inventors: Winston J. Stewart, Philip M. Kirshtein, Steven F. Brown, Robert R. Asprey
  • Patent number: 7643018
    Abstract: A transmission system for transmitting analog color video signals wherein a cable comprising multiple twisted pairs is employed, and certain of these pairs are coupled to carry selected color signals as a function of the delay provided by particular twist rates. In certain instances, selected signal delay devices are connected in circuit with certain twisted pairs. By such an arrangement, it has been found that relatively long distances between a computer and a monitor may be spanned by relatively low-cost, twisted pair cable commonly used for telephone communications.
    Type: Grant
    Filed: June 30, 2000
    Date of Patent: January 5, 2010
    Assignee: Avocent Corporation
    Inventors: Steven F. Brown, Robert R. Asprey, Winston J. Stewart, Philip M. Kirshtein
  • Patent number: 7320043
    Abstract: A network interface is described in which a single computer bus is split over a long distance into two or more inter-communicating buses. On one bus, processing and applications are provided and on the other remote bus, peripheral and local controllers are provided. The buses communicate through a series of: bridge, FPGA, FPGA and bridge. Between the FPGAs, a communication path provides long distance communication.
    Type: Grant
    Filed: September 10, 2004
    Date of Patent: January 15, 2008
    Assignee: Avocent Huntsville Corporation
    Inventors: Remigius G. Shatas, Robert R. Asprey, Christopher L. Thomas, Greg O'Bryant, Greg Luterman, Jeffrey E. Choun
  • Patent number: 7206348
    Abstract: A transmission system for transmitting analog color video signals wherein a cable comprising multiple twisted pairs is employed, and certain of these pairs are coupled to carry selected color signals as a function of the delay provided by particular twist rates. In certain instances, selected signal delay devices are connected in circuit with certain twisted pairs. By such an arrangement, it has been found that relatively long distances between a computer and monitor may be spanned by relatively low-cost, twisted pair cable commonly used for telephone communications.
    Type: Grant
    Filed: December 4, 2000
    Date of Patent: April 17, 2007
    Assignee: Avocent Corporation
    Inventors: Winston J. Stewart, Philip M. Kirshtein, Steven F. Brown, Robert R. Asprey
  • Patent number: 7020732
    Abstract: A network interface is described in which a single computer bus is split over a long distance into two or more inter-communicating buses. On one bus, processing and applications are provided and on the other remote bus, peripheral and local controllers are provided. The buses communicate through a series of: bridge, FPGA, FPGA and bridge. Between the FPGAs, a communication path provides long distance communication.
    Type: Grant
    Filed: March 6, 2003
    Date of Patent: March 28, 2006
    Assignee: Avocent Huntsville Corporation
    Inventors: Remigius G. Shatas, Robert R. Asprey, Christopher L. Thomas, Greg O'Bryant, Greg Luterman, Jeffrey E. Choun
  • Patent number: 6807639
    Abstract: A network interface is described in which a single computer bus is split over a long distance into two or more inter-communicating buses. On one bus, processing and applications are provided and on the other remote bus, peripheral and local controllers are provided. The buses communicate through a series of: bridge, FPGA, FPGA and bridge. Between the FPGAs, a communication path provides long distance communication.
    Type: Grant
    Filed: May 20, 2002
    Date of Patent: October 19, 2004
    Assignee: Avocent Corporation
    Inventors: Remigius G. Shatas, Robert R. Asprey, Christopher L. Thomas, Greg O'Bryant, Greg Luterman, Jeffrey E. Choun
  • Patent number: 6748473
    Abstract: A split computer (122) comprises a main module (140) remotely connected by external PCI bus (170) to a input/output (I/O) or extension module (142). The main module (140) comprises a processor (181) and an external PCI bus first interface (300). The input/output (I/O) module comprises one or more input and/or output device controllers and an external PCI bus second interface. The external PCI bus connects the external bus first interface of the main module with the external bus second interface of the input/output (I/O) module. The main module executes application programs, maintains user configurations, and maintains application configurations. Yet since the main module is located remotely, e.g., at a data center (150), the both security and centralized management are realized using existing hardware and software. The input/output (I/O) module has a relative small footprint and primarily performs input and output operations.
    Type: Grant
    Filed: October 29, 1999
    Date of Patent: June 8, 2004
    Assignee: Avocent Huntsville Corporation
    Inventors: Remigius G. Shatas, Robert R. Asprey, Christopher L. Thomas, Greg O'Bryant, Greg Luterman, Jeffrey E. Choun
  • Publication number: 20030212755
    Abstract: A network interface is described in which a single computer bus is split over a long distance into two or more inter-communicating buses. On one bus, processing and applications are provided and on the other remote bus, peripheral and local controllers are provided. The buses communicate through a series of: bridge, FPGA, FPGA and bridge. Between the FPGAs, a communication path provides long distance communication.
    Type: Application
    Filed: March 6, 2003
    Publication date: November 13, 2003
    Applicant: Cybex Computer Products Corporation
    Inventors: Remigius G. Shatas, Robert R. Asprey, Christopher L. Thomas, Greg O'Bryant, Greg Luterman, Jeffrey E. Choun
  • Publication number: 20020138682
    Abstract: A network interface is described in which a single computer bus is split over a long distance into two or more inter-communicating buses. On one bus, processing and applications are provided and on the other remote bus, peripheral and local controllers are provided. The buses communicate through a series of: bridge, FPGA, FPGA and bridge. Between the FPGAs, a communication path provides long distance communication.
    Type: Application
    Filed: May 20, 2002
    Publication date: September 26, 2002
    Applicant: Cybex Computer Products Corporation
    Inventors: Remigius G. Shatas, Robert R. Asprey, Christopher L. Thomas, Greg O'Bryant, Greg Luterman, Jeffrey E. Choun
  • Patent number: 6418494
    Abstract: A network interface is described in which a single computer bus is split over a long distance into two or more intercommunicating buses. On one bus, processing and applications are provided and on the other remote bus, peripheral and local controllers are provided. The buses communicate through a series of: bridge, FPGA, FPGA and bridge. Between the FPGAs, a communication path provides long distance communication.
    Type: Grant
    Filed: October 29, 1999
    Date of Patent: July 9, 2002
    Assignee: Cybex Computer Products Corporation
    Inventors: Remigius G. Shatas, Robert R. Asprey, Christopher L. Thomas, Greg O'Bryant, Greg Luterman, Jeffrey E. Choun
  • Publication number: 20020056137
    Abstract: A transmission system for transmitting analog color video signals wherein a cable comprising multiple twisted pairs is employed, and certain of these pairs are coupled to carry selected color signals as a function of the delay provided by particular twist rates. In certain instances, selected signal delay devices are connected in circuit with certain twisted pairs. By such an arrangement, it has been found that relatively long distances between a computer and monitor may be spanned by relatively low-cost, twisted pair cable commonly used for telephone communications.
    Type: Application
    Filed: December 4, 2000
    Publication date: May 9, 2002
    Applicant: Cybex Computer Products Corporation
    Inventors: Winston J. Stewart, Philip M. Kirshtein, Steven F. Brown, Robert R. Asprey
  • Patent number: 6377629
    Abstract: A transmission system for transmitting analog color video signals wherein a cable comprising multiple twisted pairs is employed, and certain of these pairs are coupled to carry selected color signals as a function of the delay provided by particular twist rates. In certain instances, selected signal delay devices are connected in circuit with certain twisted pairs. By such an arrangement, it has been found that relatively long distances between a computer and monitor may be spanned by relatively low-cost, twisted pair cable commonly used for telephone communications.
    Type: Grant
    Filed: April 20, 1999
    Date of Patent: April 23, 2002
    Assignee: Cybex Computer Products Corporation
    Inventors: Winston J. Stewart, Philip M. Kirshtein, Steven F. Brown, Robert R. Asprey
  • Patent number: 6185643
    Abstract: An apparatus, method, and system for providing a computer extender for connecting a computer at a first location to peripherals at a second location. The peripherals are located at distances greater than possible using standard computer cables. A cable coupling the locations and serving as the communication channel is a bundle of four pairs of wires, where three of the pairs provide video. The remaining pair provides for transfer of mouse information, keyboard information, vertical sync, horizontal sync, audio signals, modem signals, asynchronous data, and has a reserve capacity for other information.
    Type: Grant
    Filed: November 15, 1997
    Date of Patent: February 6, 2001
    Assignee: Cybex Computer Products Corporation
    Inventors: Philip M. Kirshtein, Robert R. Asprey
  • Patent number: 6184919
    Abstract: A source of analog computer video signals is provided, which source may be a video switch providing a single set of computer video signals from one of a plurality of computers. From the source, the video signals are applied to a transmitter that includes circuitry for developing a pair of balanced video signals from each discrete video signal and applying each signal of the pair of balanced signals to respective conductors of a twisted pair of conductors. At the receiver, each balanced pair of video signals is converted back to a single-ended form. Compensation circuitry is provided for compensating for the length of twisted pair conductors between the transmitters and receivers for each video signal. Horizontal and vertical sync signals are applied via respective buffer amplifiers to another twisted pair of conductors in unbalanced relation.
    Type: Grant
    Filed: June 3, 1996
    Date of Patent: February 6, 2001
    Inventors: Robert R. Asprey, Philip M. Kirshtein, Thomas V. Lusk
  • Patent number: 6150997
    Abstract: A non-inverting amplifier powered by a single polarity of electrical power with respect to a ground potential. Three of these amplifiers, one for each of the three basic colors, feeds three in-line adjacent conductors of a multi-conductor cable and wherein a signal to the center of these conductors is inverted. At the output end of the cable, the originally inverted signal is again inverted, after which all signals are fed to a monitor.
    Type: Grant
    Filed: October 31, 1996
    Date of Patent: November 21, 2000
    Assignee: Cybex Computer Products Corporation
    Inventor: Robert R. Asprey
  • Patent number: 5926509
    Abstract: A transmission system for transmitting analog color video signals wherein a cable comprising multiple twisted pairs is employed, and certain of these pairs are coupled to carry selected color signals as a function of the delay provided by particular twist rates. In certain instances, selected signal delay devices are connected in circuit with certain twisted pairs. By such an arrangement, it has been found that relatively long distances between a computer and monitor may be spanned by relatively low-cost, twisted pair cable commonly used for telephone communications.
    Type: Grant
    Filed: November 6, 1996
    Date of Patent: July 20, 1999
    Assignee: Cybex Computer Products Corporation
    Inventors: Winston J. Stewart, Philip M. Kirshtein, Steven F. Brown, Robert R. Asprey
  • Patent number: 5587824
    Abstract: A bidirectional, long-distance open collector link is constructed between a pair of spaced-apart open collector ports, with each of the ports being coupled to one input of a comparator. The other input of the comparator is responsive to a reference voltage and the comparator of the opposite port via an extended conductor. A first diode poled to pass current from the respective port is coupled between inputs of each comparator, and a second diode is coupled in the extended conductor to pass current to the opposite port. As such, when a first port goes LOW, a first comparator operatively associated with that port provides a LOW to the input of the second comparator, causing it to provide a HIGH output and also pulls the second port LOW. The HIGH from the second comparator is used to clamp the first comparator LOW as long as the port asserts a LOW.
    Type: Grant
    Filed: September 1, 1995
    Date of Patent: December 24, 1996
    Assignee: Cybex Computer Products Corporation
    Inventor: Robert R. Asprey
  • Patent number: 5576723
    Abstract: A converter for converting VGA color signals to gray scale monochrome signals wherein each of the color signals, red, green, and blue, are processed through a circuit consisting of an emitter-follower, a selected value resistor, and a diode and wherein the outputs of the three circuits are connected together and across a load impedance for an analog monochrome monitor.
    Type: Grant
    Filed: March 29, 1994
    Date of Patent: November 19, 1996
    Assignee: Cybex Computer Products Corporation
    Inventor: Robert R. Asprey
  • Patent number: 5386574
    Abstract: A temperature compensated video transmission system including a D.C.-video frequency amplifier for supplying a computer monitor wherein the operating bias for two opposite polarity type transistors are directly coupled collector-to-base, and bias to this coupling is provided through the base-emitter junctions of two serially connected transistors, the base and collectors of these transistors being directly coupled, whereby D.C. drift, with temperature, of the amplifier is prevented.
    Type: Grant
    Filed: October 26, 1993
    Date of Patent: January 31, 1995
    Assignee: Cybex Corporation
    Inventor: Robert R. Asprey