Patents by Inventor Robert A. Erickson

Robert A. Erickson 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: 7502416
    Abstract: A method comprises determining a plurality of time intervals Tp and Tn within a variable bit rate (VBR) representation of an image sequence. The time intervals Tp are those in which a number of blocks of information per unit time is greater than a baseline value. The time intervals Tn are those in which a number of blocks of information per unit time is less than the baseline value. A second representation of the image sequence is created in which some blocks of information Bp are removed from the time intervals Tp and interlaced with blocks of information Bn in the time intervals Tn to reduce a variation in a number of blocks of information per unit time between the time intervals Tp and Tn.
    Type: Grant
    Filed: March 31, 2006
    Date of Patent: March 10, 2009
    Assignee: AT&T Intellectual Property 1, L.P.
    Inventors: Pierre Costa, Ahmad Ansari, John Robert Erickson
  • Patent number: 7453272
    Abstract: A method is disclosed for measuring alignment of polysilicon shapes relative to a silicon area wherein the presence of an electrical coupling is used to determine the presence of bias or misalignment. Bridging vertices on the polysilicon shapes are formed. Bridging vertices over the silicon area create low resistance connections between those bridging vertices and the silicon area; other bridging vertices over ROX (recessed oxide) areas do not create low resistance connections between those other bridging vertices and the silicon area. Determining which bridging vertices have low resistance connections to the silicon area and how many bridging vertices have low resistance connections to the silicon area are used to determine the bias and misalignment of the polysilicon shapes relative to the silicon area.
    Type: Grant
    Filed: November 15, 2006
    Date of Patent: November 18, 2008
    Assignee: International Business Machines Corporation
    Inventors: Richard Lee Donze, Karl Robert Erickson, William Paul Hovis, John Edward Sheets, Jon Robert Tetzloff
  • Patent number: 7454732
    Abstract: Techniques for designing integrated circuits (ICs) with optimization at register transfer level (RTL) amongst multiple ICs are described herein. According to one embodiment of the invention, a hierarchical resource estimation is performed based on a technology independent register transfer level (RTL) netlist, which is to be partitioned between multiple ICs. Based on the estimation, the RTL netlist is partitioned between the multiple ICs. In response to the partition and the estimation, immediate feedback information is provided to a user.
    Type: Grant
    Filed: October 18, 2005
    Date of Patent: November 18, 2008
    Assignee: Synopsys, Inc.
    Inventors: Kenneth S. McElvain, Robert Erickson
  • Patent number: 7447216
    Abstract: Society of Motion Picture and Television Engineers (SMPTE) video data is separated into first data and second data. A first signal is formed based on the first data. A second signal is formed based on the second data. The first signal is transported via a first Optical Carrier 3 (OC-3) channel. The second signal is transported via a second OC-3 channel.
    Type: Grant
    Filed: August 4, 2006
    Date of Patent: November 4, 2008
    Assignee: SBC Technology, Resources, L.P.
    Inventors: Pierre Costa, John Robert Erickson, Ahmad Ansari
  • Patent number: 7431539
    Abstract: A clamp pin tool holder for clamping an insert in a tool holder includes a bore for receiving a clamp pin and a bore for receiving a lock screw. The clamp pin includes a cam portion with angled surfaces. The lock screw is rotatably mounted to the bore of the tool holder and includes angled surfaces for engaging the angled surfaces of the clamp pin. When the lock screw is rotated in one direction, one angled surface on the lock screw and one angled surface on the clamp pin engage each other an acts as a conical wedge to cause the clamp pin to move relative to the lock screw. When the lock screw is rotated in the opposite direction, another angled surface on the lock screw engages a different angled surface on the clamp pin in a similar manner to cause the clamp pin to move in an opposite direction.
    Type: Grant
    Filed: June 22, 2005
    Date of Patent: October 7, 2008
    Assignee: Kennametal Inc.
    Inventors: Robert A. Erickson, Paul A. Brown
  • Publication number: 20080238352
    Abstract: A machine includes an operator seat and an armrest adjacent the operator seat. The machine may also include a control system, which may include a control handle extending at least partially upward from the armrest. The control system may also include a force feedback device drivingly connected to the control handle and operable to supply feedback force to the control handle. The force-feedback device may include at least one of an actuator or a brake. Additionally, the control system may automatically adjust the magnitude of the feedback force supplied to the control handle by the force feedback device in at least some circumstances.
    Type: Application
    Filed: March 30, 2007
    Publication date: October 2, 2008
    Inventors: James Donald Dattilo, Shawn Ivor Cullen, Paul Robert Erickson, Joshua Bernard Durand
  • Publication number: 20080213053
    Abstract: A rotary cutting tool that is composed of a tool shank with at least one chucking groove or chip flute and one exchangeable cutting insert. At the tip of the shank a recess for accommodating the cutting insert is provided. The tool shank, on its circumference, has a limb with a bearing surface that is inclined relative to the tool axis and that corresponds to a likewise inclined bearing surface on a wing of the cutting insert. The inclination of the bearing surfaces produces an axial force that retains the cutting insert on the tool shank. The abstract of the disclosure is submitted herewith as required by 37 C.F.R. §1.72(b). As stated in 37 C.F.R. §1.72(b): A brief abstract of the technical disclosure in the specification must commence on a separate sheet, preferably following the claims, under the heading “Abstract of the Disclosure.
    Type: Application
    Filed: March 13, 2008
    Publication date: September 4, 2008
    Inventors: Bernhard Borschert, Dieter Muhlfriedel, Jurgen Schwagerl, Ruy Frota De Souza, Michael D. Shultz, Michael R. McCormick, Robert A. Erickson
  • Patent number: 7360974
    Abstract: A rotary cutting tool that is composed of a tool shank with at least one chucking groove or chip flute and one exchangeable cutting insert. At the tip of the shank a recess for accommodating the cutting insert is provided. The tool shank, on its circumference, has a limb with a bearing surface that is inclined relative to the tool axis and that corresponds to a likewise inclined bearing surface on a wing of the cutting insert. The inclination of the bearing surfaces produces an axial force that retains the cutting insert on the tool shank. The abstract of the disclosure is submitted herewith as required by 37 C.F.R. §1.72(b). As stated in 37 C.F.R. §1.72(b): A brief abstract of the technical disclosure in the specification must commence on a separate sheet, preferably following the claims, under the heading “Abstract of the Disclosure.
    Type: Grant
    Filed: August 19, 2004
    Date of Patent: April 22, 2008
    Assignee: Kennametal Inc.
    Inventors: Bernhard Borschert, Dieter Mühlfriedel, Jürgen Schwägerl, Ruy Filho Frota De Souza, Michael D. Shultz, Michael R. McCormick, Robert A. Erickson
  • Patent number: 7357608
    Abstract: A rotary tapered tool holder includes a shank including a front mounting portion and an aperture. An expansion sleeve is disposed about a portion of the shank. The expansion sleeve includes a front mounting portion adjacent the front mounting portion of the shank. An expansion rod is disposed within the shank and includes a pocket or cam surface. An expansion pin is at least partially received in the aperture of the shank. The expansion pin has a first end or cam surface for engaging the pocket of the expansion rod, and a second end for engaging the front mounting portion of the expansion sleeve. A force applied to the expansion rod in a first direction causes the expansion pin to move in a second direction and into positive engagement with the front mounting portion of the expansion sleeve, thereby forcing the expansion sleeve into positive contact with a tapered bore of a spindle of the tool holder.
    Type: Grant
    Filed: November 15, 2005
    Date of Patent: April 15, 2008
    Assignee: Kennametal Inc.
    Inventors: Robert A. Erickson, Ted R. Massa
  • Patent number: 7338419
    Abstract: A tool coupler for connecting tool heads, such as drills, reamers, millers, turn-cutters, dies, and rams, to a tool holder. The tool coupler has a hollow shaft, a ring-shaped collar, and a gripper groove, in which gripper groove are disposed two diametrically opposite blind bore holes with varying bore hole contours.
    Type: Grant
    Filed: February 8, 2006
    Date of Patent: March 4, 2008
    Assignee: Kennametal Inc.
    Inventors: Helmut Storch, Robert A. Erickson
  • Patent number: 7336086
    Abstract: An apparatus and method are disclosed for measuring bias of polysilicon shapes relative to a silicon area wherein the presence of an electrical coupling is used to determine the presence of bias. Bridging vertices on the polysilicon shapes are formed. Bridging vertices over the silicon area create low resistance connections between those bridging vertices and the silicon area; other bridging vertices over ROX (recessed oxide) areas do not create low resistance connections between those other bridging vertices and the silicon area. Determining which bridging vertices have low resistance connections to the silicon area and how many bridging vertices have low resistance connections to the silicon area are used to determine the bias of the polysilicon shapes relative to the silicon area.
    Type: Grant
    Filed: November 15, 2006
    Date of Patent: February 26, 2008
    Assignee: International Business Machines Corporation
    Inventors: Richard Lee Donze, Karl Robert Erickson, William Paul Hovis, John Edward Sheets, II, Jon Robert Tetzloff
  • Patent number: 7311478
    Abstract: A tool holder (20) comprises a body portion (32), a support member assembly (33) mounted to the body portion and an insert-receiving cartridge (36) removably received in the support member. The insert-receiving cartridge (36) includes a pocket (38) for mounting a cutting insert (40) thereon. The support member assembly (33) includes a bore and the insert-receiving cartridge (36) includes a shank capable of being received in the bore. The combination of the insert-receiving cartridge (36) and the cutting insert (40) forms a cutting tool for a particular cutting operation. In one embodiment, the cutting tools are radially mounted to a side periphery of the body portion (32) such that the vertical axis of the cutting tool is substantially parallel to the longitudinal axis (L) of the toolholder (20).
    Type: Grant
    Filed: September 2, 2003
    Date of Patent: December 25, 2007
    Assignee: Kennametal Inc.
    Inventors: Robert A. Erickson, Linn R. Andras
  • Publication number: 20070288871
    Abstract: Methods and apparatuses for designing an integrated circuit. In one example of a method, a hardware description language (HDL) code is compiled to produce a technology independent RTL (register transfer level) netlist. A portion of an area of the IC is allocated to a specific portion of the technology independent RTL netlist. In a typical implementation of this method, the allocation restricts circuitry created from the specific portion to the portion of the IC.
    Type: Application
    Filed: August 21, 2007
    Publication date: December 13, 2007
    Inventors: Kenneth McElvain, Robert Erickson
  • Patent number: 7306238
    Abstract: An assembly generally comprises a collet for receiving a cutting tool shank and a lock nut for creating a gripping force between the collet and the cutting tool shank. The collet has a nose and the lock nut has a front face that is substantially flush with the nose. The lock nut further has a fastening element that mates with a fastening element of a coolant sealing ring for attaching the coolant sealing ring to the lock nut so that the coolant sealing ring may be detached from the lock nut.
    Type: Grant
    Filed: March 1, 2005
    Date of Patent: December 11, 2007
    Assignee: Kennametal Inc.
    Inventors: Robert E. Oshnock, Michael R. McCormick, Robert A. Erickson
  • Patent number: 7287941
    Abstract: An apparatus for pneumatically amplifying the force acting upon a lock rod to retain a toolholder within a toolholder receiving member has a spindle extending from the toolholder receiving member and at least two in-line dual acting piston/cylinder modules within a cavity within the bore of the spindle. Each module has a piston within an associated cylinder and wherein the lock rod, through a drawbar, is attached to the piston of each module such that when each module is pressurized, the combined force of all of the pistons is applied to the lock rod. The invention is also directed to a method for achieving this task.
    Type: Grant
    Filed: September 5, 2006
    Date of Patent: October 30, 2007
    Assignee: Kennametal Inc.
    Inventor: Robert A. Erickson
  • Publication number: 20070246900
    Abstract: An collet and lock nut assembly includes a collet for receiving a cutting tool shank and a lock nut for creating a gripping force between the collet and the shank. The collet has a nose portion and a body portion separated by an annular groove. The lock nut has a plurality of retention tabs and a corresponding number of clear portions. The collet and lock nut assembly can be easily assembled by inserting at least one retention tab within the groove of the collet, and then applying pressure to the collet such that the remaining retention tabs of the lock nut are received within the groove of the collet to place the assembly in a locked position. The collet and cutting tool shank can be drawn from the tool holder by applying rotational torque to the lock nut. The collet is easily removed from the lock nut by applying pressure in any circumferential, lateral direction against the collet.
    Type: Application
    Filed: June 11, 2007
    Publication date: October 25, 2007
    Inventors: Robert Oshnock, Michael McCormick, Robert Erickson, Keith Wiggins
  • Patent number: 7275233
    Abstract: Methods and apparatuses for designing an integrated circuit. In one example of a method, a hardware description language (HDL) code is compiled to produce a technology independent RTL (register transfer level) netlist. A portion of an area of the IC is allocated to a specific portion of the technology independent RTL netlist. In a typical implementation of this method, the allocation restricts circuitry created from the specific portion to the portion of the IC.
    Type: Grant
    Filed: March 4, 2003
    Date of Patent: September 25, 2007
    Assignee: Synplicity, Inc.
    Inventors: Kenneth S. McElvain, Robert Erickson
  • Patent number: 7261302
    Abstract: A collet and lock nut assembly includes a collet for receiving a cutting tool shank and a lock nut for creating a gripping force between the collet and the shank. The collet has a nose portion and a body portion separated by an annular groove. The lock nut has a plurality of retention tabs and a corresponding number of clear portions. The collet and lock nut assembly can be easily assembled by inserting at least one retention tab within the groove of the collet, and then applying pressure to the collet such that the remaining retention tabs of the lock nut are received within the groove of the collet to place the assembly in a locked position. The collet and cutting tool shank can be drawn from the tool holder by applying rotational torque to the lock nut. The collet is easily removed from the lock nut by applying pressure in any circumferential, lateral direction against the collet.
    Type: Grant
    Filed: March 3, 2005
    Date of Patent: August 28, 2007
    Assignee: Kennametal Inc.
    Inventors: Robert E. Oshnock, Michael R. McCormick, Robert A. Erickson, Keith Wiggins
  • Patent number: 7240594
    Abstract: An apparatus is disclosed for releasably holding a toolholder shank having a lockable surface and a releasable surface utilizing an actuating bolt with an associated threaded actuating nut. When the actuating bolt is rotated in a locking direction, the actuating nut is drawn onto the bolt thereby clamping against the lockable surfaces of the toolholder shank. When the actuating bolt is rotated in the releasing direction, a releasing segment acts upon the toolholder thereby ejecting it from the tool support member.
    Type: Grant
    Filed: August 9, 2004
    Date of Patent: July 10, 2007
    Assignee: Kennametal Inc.
    Inventors: Robert A. Erickson, William M. Long
  • Patent number: 7241649
    Abstract: A FinFET body contact structure and a method for creating the FinFET body contact structure are disclosed. The body contact structure comprises a wide fin portion of a semiconductor fin, the wide fin portion having a polysilicon polygon shape formed on a top surface of the wide fin portion. The polysilicon polygon shape has a center area having no polysilicon. FinFETs are formed on two vertical surfaces of the wide fin portion and gates of the FinFETs are coupled to the polysilicon polygon shape. Top surfaces of the wide fin portion and the polysilicon polygon shape are silicided. Silicide bridging is prevented by sidewall spacers. All convex angles on the polysilicon polygon shape are obtuse enough to prevent creation of bridging vertices. The center area is doped of an opposite type from a source and a drain of an associated FinFET.
    Type: Grant
    Filed: October 29, 2004
    Date of Patent: July 10, 2007
    Assignee: International Business Machines Corporation
    Inventors: Richard Lee Donze, Karl Robert Erickson, William Paul Hovis, Terrance Wayne Kueper, John Edward Sheets, II, Jon Robert Tetzloff