Patents by Inventor David Hartman

David Hartman 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: 20060294559
    Abstract: A system and method are disclosed for providing a unified video data stream for diverse receiving platforms. In some embodiments, the unified data stream can provide video data to multiple receiving devices with diverse video data input requirements. The communication system can include a digitizer that converts an analog video to a high resolution (HR) digital video signal. The communication system can also include a signal processing engine that receives the HR digital video signal, compress the video signal, creates video packets from the compressed signal, and identifies at least a portion of the video packets for distribution to lower resolution devices. The HR data stream can be sent to high resolution devices wherein the identified packets can be “copied” from the HR data stream and sent to devices having lower resolution requirements.
    Type: Application
    Filed: June 22, 2005
    Publication date: December 28, 2006
    Applicant: SBC Knowledge Ventures, L.P.
    Inventors: Ahmad Ansari, Dinesh Nadarajah, David Hartman
  • Publication number: 20060277730
    Abstract: An apparatus and method for winding a sheet of aligned parallel yarns onto a beam is described. The beam winder utilizes a circularly arced yarn spool rack that feeds each yarn to an alignment comb through associated guide tubes. The distance between each spool of yarn and the alignment comb is substantially the same for all spools of yarn, thereby equalizing the force necessary to pull them to the comb. Next, the aligned sheet of material is preshrunk using heated rollers and wound onto a beam. Multiple speed controlled stepper motors are utilized to maintain a constant low level of tension in the sheet during the shrinking process. After shrinkage, the tension level of the yarn sheet is increased as it is wrapped onto the beam. A turntable that supports two or more beams is provided to facilitate the rapid switching of beams once one beam has become full.
    Type: Application
    Filed: August 7, 2006
    Publication date: December 14, 2006
    Applicant: Hunter Douglas Inc.
    Inventors: Wendell Colson, David Hartman
  • Publication number: 20060277729
    Abstract: An apparatus and method for winding a sheet of aligned parallel yarns onto a beam is described. The beam winder utilizes a circularly arced yarn spool rack that feeds each yarn to an alignment comb through associated guide tubes. The distance between each spool of yarn and the alignment comb is substantially the same for all spools of yarn, thereby equalizing the force necessary to pull them to the comb. Next, the aligned sheet of material is preshrunk using heated rollers and wound onto a beam. Multiple speed controlled stepper motors are utilized to maintain a constant low level of tension in the sheet during the shrinking process. After shrinkage, the tension level of the yarn sheet is increased as it is wrapped onto the beam. A turntable that supports two or more beams is provided to facilitate the rapid switching of beams once one beam has become full.
    Type: Application
    Filed: August 7, 2006
    Publication date: December 14, 2006
    Applicant: Hunter Douglas Inc.
    Inventors: Wendell Colson, David Hartman
  • Publication number: 20060277732
    Abstract: An apparatus and method for winding a sheet of aligned parallel yarns onto a beam is described. The beam winder utilizes a circularly arced yarn spool rack that feeds each yarn to an alignment comb through associated guide tubes. The distance between each spool of yarn and the alignment comb is substantially the same for all spools of yarn, thereby equalizing the force necessary to pull them to the comb. Next, the aligned sheet of material is preshrunk using heated rollers and wound onto a beam. Multiple speed controlled stepper motors are utilized to maintain a constant low level of tension in the sheet during the shrinking process. After shrinkage, the tension level of the yarn sheet is increased as it is wrapped onto the beam. A turntable that supports two or more beams is provided to facilitate the rapid switching of beams once one beam has become full.
    Type: Application
    Filed: August 7, 2006
    Publication date: December 14, 2006
    Applicant: Hunter Douglas Inc.
    Inventors: Wendell Colson, David Hartman
  • Patent number: 7145888
    Abstract: Satellite communications are carried out using the Data Over Cable Interface Specification (DOCSIS). Satellite modems are notified of upstream channel congestion by inserting a congestion notification message in a medium access protocol (MAP) message for the upstream channel. Specifically, the congestion notification message is inserted in an unused field of the MAP message, such as the explicit congestion notification (ECN) field. The MAP message can also carry other characteristics of the upstream channel, including priority threshold, multicast access burst availability, and available bandwidth.
    Type: Grant
    Filed: April 23, 2003
    Date of Patent: December 5, 2006
    Assignee: Broadcom Corporation
    Inventors: Mark Dale, David Hartman, Dorothy Lin, Rocco Brescia, Alan Gin, Ravi Bhaskaran, Jen-chieh Chien, Adel Fanous
  • Publication number: 20060251094
    Abstract: A communications gateway can be used to provide communications services from a communications service provide to electronic devices within a structure. Signals can be transmitted from the communications gateways to the electronic devices over a plurality of different types of wireline media. The communications gateway can allow communication services using a wireline medium (e.g., a set of twisted pair wires) to be transmitted within the structure by taking advantage of existing wireline media (e.g., CAT3 cable, coaxial cable, power lines, etc.).
    Type: Application
    Filed: April 8, 2005
    Publication date: November 9, 2006
    Applicant: SBC Knowledge Ventures, LP
    Inventors: Paul Van Vleck, Ahmad Ansari, Vernon Reed, David Hartman
  • Publication number: 20060204763
    Abstract: A sizing composition containing an epoxy film former, a urethane film former, a silane package that includes an aminosilane coupling agent and an epoxy silane coupling agent, a cationic lubricant, a non-ionic lubricant, an antistatic agent, and at least one acid is provided. The epoxy resin emulsion includes a low molecular weight liquid epoxy resin and one or more surfactants. The epoxy resin preferably has an epoxy equivalent weight from 185-192. The sizing composition may optionally contain a methacryloxy silane. The sizing composition may be used to size glass fibers used in filament winding applications to form reinforced composite articles with improved mechanical properties, wet tensile properties, improved resistance to cracking, and improved processing characteristics.
    Type: Application
    Filed: February 27, 2006
    Publication date: September 14, 2006
    Inventors: David Hartman, Luc Peters, Jeffrey Antle
  • Patent number: 7097032
    Abstract: A chain module according to the invention comprises at least one link from ferritic-pearlitic stainless steel and at least one chain pin, which chain pin comprises an outwardly facing surface formed from a steel alloy which is substantially non-seizing to the ferritic-pearlitic stainless steel of said link. Preferably, the chain pin comprises a steel alloy with more than 0.6 wt. % of carbon and more than 12 wt. % of chromium.
    Type: Grant
    Filed: May 7, 2004
    Date of Patent: August 29, 2006
    Assignee: Rexnord Flattop Europe B.V.
    Inventors: Stephan David Hartman, Gijsbertus Johannes Verduijn
  • Patent number: 7077608
    Abstract: A system for mounting a tool in a tool holder for high-precision centering of the tool and positive restraint of the tool from rotation within the holder. The tool holder includes a cylindrical aperture having a diameter slightly less than the diameter of the shank of a cylindrical tool. The tool is installed into the tool holder by heating the tool holder to a temperature sufficient to increase the aperture diameter sufficiently to accept the tool shank. The tool shank is further provided with an angular flat for engagement with a set screw to prevent the tool from being turned in the holder in use. Preferably, a second tool flat is provided opposite the first flat and extending to the end of the tool shank for orientation of the tool by a second set screw during insertion of the tool into the tool holder.
    Type: Grant
    Filed: April 22, 2004
    Date of Patent: July 18, 2006
    Assignee: Parlec, Inc.
    Inventor: David Hartman
  • Publication number: 20060143881
    Abstract: An apparatus and method for winding a sheet of aligned parallel yarns onto a beam is described. The beam winder utilizes a circularly arced yarn spool rack that feeds each yarn to an alignment comb through associated guide tubes. The distance between each spool of yarn and the alignment comb is substantially the same for all spools of yarn, thereby equalizing the force necessary to pull them to the comb. Next, the aligned sheet of material is preshrunk using heated rollers and wound onto a beam. Multiple speed controlled stepper motors are utilized to maintain a constant low level of tension in the sheet during the shrinking process. After shrinkage, the tension level of the yarn sheet is increased as it is wrapped onto the beam. A turntable that supports two or more beams is provided to facilitate the rapid switching of beams once one beam has become full.
    Type: Application
    Filed: January 19, 2006
    Publication date: July 6, 2006
    Applicant: Hunter Douglas Inc.
    Inventors: Wendell Colson, David Hartman
  • Publication number: 20060141216
    Abstract: A woven reinforcement material includes an elongated body formed from a weave of warp strands and weft strands. The elongated body has a first end section, a second end section and an intermediate section. The intermediate section has a first thickness A and the first and second end sections have a second thickness B where A>B. A method is also provided for securing an elongated body of a woven reinforcement material to a core.
    Type: Application
    Filed: December 28, 2004
    Publication date: June 29, 2006
    Inventors: David Hartman, Richard Bustamante
  • Publication number: 20060127635
    Abstract: An apparatus for fabricating a unique nonwoven fabric which has the appearance of a woven fabric includes a supply station for parallel warp yarns, a support structure for orienting the parallel warp yarns into a cylindrical orientation, a weft yarn applicator for wrapping weft yarns around the cylindrically oriented warp yarns after an adhesive scrim has been overlaid onto the warp yarns, a heating station for activating the adhesive and a cooling station for setting the adhesive, and a cutter for severing the cylindrically formed fabric laminate so that it can be flattened and wrapped onto a take-up roller. The weft yarn applicator including a rotating drum wherein a plurality of spools of weft yarn material are mounted in circumferentially spaced relationship and a tensioner is provided for applying the weft yarn material around the warp yarns in a predetermined tension which may be the same as, greater than, or less than the tension in the warp yarns.
    Type: Application
    Filed: February 13, 2006
    Publication date: June 15, 2006
    Inventors: Wendell Colson, Paul Swiscz, David Hartman
  • Publication number: 20060113042
    Abstract: An apparatus is disclosed for fabricating a laminate product having a pair of sheet materials spaced by a plurality of flexible parallel vanes which are secured to the sheet material so that planar movement of the sheet materials in opposite directions cause the vanes to shift between open and closed positions. The vane material is formed from a web of material by dyeing the material, drying the dyed material, applying spaced longitudinally extending lines of adhesive on opposite faces of the material, and cutting the material into a plurality of side-by-side strips with each strip having a bead of adhesive on each face and along opposite side edges. The cut material with adhesive applied thereto is taken up on a transfer roll and moved to a vane/strip handling station where the strips of material are processed and delivered to a laminating station in parallel overlapping relationship with each other.
    Type: Application
    Filed: January 17, 2006
    Publication date: June 1, 2006
    Applicant: Hunter Douglas Inc.
    Inventors: Wendell Colson, David Hartman
  • Publication number: 20060089068
    Abstract: An infusion fabric includes a mat selected from a group consisting of continuous filament mat, direct chopped mat, direct continuous mat and combinations thereof and a woven roving or bonded reinforcement layer. The mat and woven roving reinforcement layer are stitched together. The continuous filament mat includes E-glass and/or ECR-glass fibers, a binder and a size.
    Type: Application
    Filed: October 22, 2004
    Publication date: April 27, 2006
    Inventors: David Hartman, Matthew Dunn
  • Patent number: 7023868
    Abstract: A network gateway is configured to facilitate on line and off line bi-directional communication between a number of near end data and telephony devices with far end data termination devices via a hybrid fiber coaxial network and a cable modem termination system. The described network gateway combines a QAM receiver, a transmitter, a DOCSIS MAC, a CPU, a voice and audio processor, a voice synchronizer, an Ethernet MAC, and a USB controller to provide high performance and robust operation. It is emphasized that this abstract is provided to comply with the rules requiring an abstract which will allow a searcher or other reader to quickly ascertain the subject matter of the technical disclosure. It is submitted with the understanding that it will not be used to interpret or limit the scope or the meaning of the claims.
    Type: Grant
    Filed: December 13, 2000
    Date of Patent: April 4, 2006
    Assignee: Broadcom Corporation
    Inventors: Theodore F. Rabenko, David Hartman, James C. H. Thi
  • Patent number: 7017853
    Abstract: An apparatus is disclosed for fabricating a laminate product having a pair of sheet materials spaced by a plurality of flexible parallel vanes which are secured to the sheet material so that planar movement of the sheet materials in opposite directions cause the vanes to shift between open and closed positions. The vane material is formed from a web of material by dyeing the material, drying the dyed material, applying spaced longitudinally extending lines of adhesive on opposite faces of the material, and cutting the material into a plurality of side-by-side strips with each strip having a bead of adhesive on each face and along opposite side edges. The cut material with adhesive applied thereto is taken up on a transfer roll and moved to a vane/strip handling station where the strips of material are processed and delivered to a laminating station in parallel overlapping relationship with each other.
    Type: Grant
    Filed: February 6, 2004
    Date of Patent: March 28, 2006
    Assignee: Hunter Douglas Inc.
    Inventors: Wendell B. Colson, David Hartman
  • Publication number: 20060048659
    Abstract: A covering for architectural surfaces as well as a method of forming and applying the covering is described in various embodiments and arrangements wherein fabric can be utilized and folded to provide a three-dimensional appearance with hollow or padded cells and wherein folds in the material used to make the covering or reveal strips conceal otherwise distractive seams between adjacent strips of the covering material.
    Type: Application
    Filed: January 13, 2004
    Publication date: March 9, 2006
    Applicant: Hunter Douglas Inc.
    Inventors: Wendell Colson, Daniel Fogarty, David Hartman
  • Publication number: 20060050623
    Abstract: In one embodiment of the communications network 100, the predetermined encoding scheme and symbol constellation configurations are chosen so that the range in channel qualities that the encoding scheme and symbol constellation configurations are designed to be utilized within overlap with each other. This overlapping provides hysteresis, which reduces the frequency with which a subscriber 110 must alter encoding scheme and symbol constellations. Reducing the frequency of changing encoding scheme and/or symbol constellation eliminates the communication overhead associated with these changes and increases throughput by enabling the subscriber 110 to spend more time transmitting data.
    Type: Application
    Filed: October 27, 2005
    Publication date: March 9, 2006
    Inventor: David Hartman
  • Patent number: 6985492
    Abstract: A network gateway is configured to facilitate on line and off line bi-directional communication between a number of near end data and telephony devices with far end data termination devices via a hybrid fiber coaxial network and a cable modem termination system. The described network gateway combines a QAM receiver, a transmitter, a DOCSIS MAC, a CPU, a voice and audio processor, an Ethernet MAC, and a USB controller to provide high performance and robust operation. It is emphasized that this abstract is provided to comply with the rules requiring an abstract which will allow a searcher or other reader to quickly ascertain the subject matter of the technical disclosure. It is submitted with the understanding that it will not be used to interpret or limit the scope or the meaning of the claims.
    Type: Grant
    Filed: November 3, 2000
    Date of Patent: January 10, 2006
    Assignee: Broadcom Corporation
    Inventors: James C. H. Thi, David Hartman, Theodore F. Rabenko
  • Publication number: 20050249315
    Abstract: In one aspect the present invention describes an electronic circuit for transmitting voice packet data over a wireless network with an upstream transmission mode and a downstream transmission mode. The circuit comprises a first phase-lock loop (PLL) for locking a first clock to a time stamp signal, wherein the first clock synchronizes upstream data transmission over the wireless network; and a second PLL for locking a second clock to the time stamp signal, wherein the second clock is used for sampling voice data for downstream voice data transmission over the wireless network.
    Type: Application
    Filed: June 23, 2005
    Publication date: November 10, 2005
    Inventors: David Hartman, Mark Dale