Patents by Inventor Sam E. Calvin

Sam E. Calvin 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: 6515870
    Abstract: An integrated circuit (IC) includes a package-integrated Faraday cage assembly to reduce the level of electromagnetic radiation emanating from the IC during operation. The IC uses a number of appropriately spaced leads on the IC package to form part of a Faraday cage surrounding a semiconductor chip within the IC. In one approach, the selected leads are coupled by a conductive member to a conductive cover plate of the IC package that forms an upper boundary of the Faraday cage. When the IC is installed in an external circuit, some or all of the selected leads are coupled together outside of the IC package (e.g., to an electrical ground) to form the lower boundary of the Faraday cage.
    Type: Grant
    Filed: November 27, 2000
    Date of Patent: February 4, 2003
    Assignee: Intel Corporation
    Inventors: Harry G. Skinner, Sam E. Calvin
  • Publication number: 20020151288
    Abstract: According to an embodiment of the invention a circuit that is to be coupled to a reference voltage line. The circuit includes a noise coupling circuit that is to couple noise from the circuit to a reference voltage line based upon whether a driver is driving a data line.
    Type: Application
    Filed: April 29, 2002
    Publication date: October 17, 2002
    Inventors: Sanjay Dabral, Stephen R. Mooney, T. Zale Schoenborn, Sam E. Calvin, Tim Frodsham
  • Patent number: 6453422
    Abstract: According to an embodiment of the invention a circuit that is to be coupled to a reference voltage line. The circuit includes a noise coupling circuit that is to couple noise from the circuit to a reference voltage line based upon whether a driver is driving a data line.
    Type: Grant
    Filed: December 23, 1999
    Date of Patent: September 17, 2002
    Assignee: Intel Corporation
    Inventors: Sanjay Dabral, Stephen R. Mooney, T. Zale Schoenborn, Sam E. Calvin, Tim Frodsham
  • Patent number: 6320441
    Abstract: A GTL I/O transceiver circuit having a pulsed latch receiver. A pulse generator generate a first pulse and a second pulse within the first pulse in response to a rising edge of the bus clock. The first pulse turns on the differential amplifier of the receiver circuit just long enough to provide a valid amplifier output signal. The second pulse controls a tristate latch such that the value of the amplifier output signal is latched before the differential amplifier is turned off. The pulsed latch receiver turns the differential amplifier on for only a fraction of the period of the bus clock such that power dissipation of the pulsed latch receiver circuit is significantly reduced. By using the pulsed latch receiver in VLSI components having hundreds of I/Os, significant reduction in overall component power dissipation can be achieved and static DC power is eliminated. The GTL I/O transceiver is useful for interfacing VLSI CMOS components to a terminated bus.
    Type: Grant
    Filed: June 19, 1996
    Date of Patent: November 20, 2001
    Assignee: Intel Corporation
    Inventors: Tom D. Fletcher, Sam E. Calvin, Tim Frodsham
  • Patent number: 5721875
    Abstract: A GTL I/O transceiver circuit having a pulsed latch receiver. A pulse generator generates a first pulse and a second pulse within the first pulse in response to a rising edge of the bus clock. The first pulse turns on the differential amplifier of the receiver circuit just long enough to provide a valid amplifier output signal. The second pulse controls a tristate latch such that the value of the amplifier output signal is latched before the differential amplifier is turned off. The pulsed latch receiver turns the differential amplifier on for only a fraction of the period of the bus clock such that power dissipation of the pulsed latch receiver circuit is significantly reduced. By using the pulsed latch receiver in VLSI components having hundreds of I/Os, significant reduction in overall component power dissipation can be achieved and static DC power is eliminated. The GTL I/O transceiver is useful for interfacing VLSI CMOS components to a terminated bus.
    Type: Grant
    Filed: November 12, 1993
    Date of Patent: February 24, 1998
    Assignee: Intel Corporation
    Inventors: Tom D. Fletcher, Sam E. Calvin, Tim Frodsham