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Carnegie Mellon University Patents
Assignee:
Carnegie Mellon University
Address:
Pittsburgh, PA
No. of patents:
414
Patents:


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Patent Number Title Of Patent Date Issued
5863661 Method of enhancing the c-axis perpendicular orientation of barium hexaferrite thin films and ba January 26, 1999
A method of making c-axis perpendicularly oriented barium hexaferrite thin films by the crystallization of amorphous barium hexaferrite on a platinum underlayer is provided. Using a thin underlayer of platinum, barium hexaferrite films can be deposited by conventional rf diode or magnetr
5855000 Method and apparatus for correcting and repairing machine-transcribed input using independent or December 29, 1998
The method of the present invention is comprised of the steps of locating an error within a recognition hypothesis. A repair hypothesis is generated for the located error from a secondary input signal. At least a portion of the recognition hypothesis is correlated with the repair hypothe
5854856 Content based video compression system December 29, 1998
A content based method of compressing a segment of video is implemented in two stages. In a spatial integration stage, figures are represented in terms of compact models. In a temporal integration stage, which uses the information from the spatial integration stage, constructs, i.e., wor
5853428 Metal ligand containing bleaching compositions December 29, 1998
The invention provides a novel composition for bleaching cellulose based materials, such as wood pulp and paper comprising:(a) an oxidatively stable bleach activator having the structure ##STR1## wherein Y.sub.1, Y.sub.3 and Y.sub.4 each represents a bridging group, i.e., zero, one,
5852191 Rigidized monomethine cyanines December 22, 1998
Boron complexes of certain bis-heterocyclic compounds are provided. The complexes resemble monomethine cyanines and are useful for imparting fluorescent properties to materials by covalent and noncovalent association. The compounds have the following general formula: ##STR1## whe
5847120 Long-lived homogenous oxidation catalysts December 8, 1998
A robust chelate complex is provided having the formula: ##STR1## wherein M is a metal, preferably a transition metal; Z is an anionic donor atom, at least three of which are nitrogen and the other is preferably nitrogen or oxygen; L.sub.1 is a labile ligand;Ch.sub.1, Ch.sub.2 and Ch
5843888 Low oxygen affinity mutant hemoglobin December 1, 1998
A non-naturally occurring mutant hemoglobin (.alpha.96Val.fwdarw.Trp) is provided that has a lower oxygen affinity than that of native hemoglobin, but high cooperativity in oxygen binding. The mutant hemoglobin is preferably obtained by recombinant DNA techniques. Such a mutant hemog
5841577 Light microscope having acousto-optic tunable filters November 24, 1998
A light microscope comprises a light source and a first acousto-optic tunable filter responsive to the light source for producing two light streams of different polarization. A control circuit is provided for tuning the first filter to a plurality of frequencies. A mechanism, such as
5835667 Method and apparatus for creating a searchable digital video library and a system and method of November 10, 1998
An apparatus and method of creating a digital library from audio data and video images. The method includes the steps of transcribing the audio data and marking the transcribed audio data with a first set of time-stamps and indexing the transcribed audio data. The method also includes th
5825660 Method of optimizing component layout using a hierarchical series of models October 20, 1998
A method of optimizing a three-dimensional component layout in accordance with predetermined constraints is comprised of the steps of generating a plurality of models for each component. The plurality of models is arranged in a hierarchy from the model having the least resolution to the
5814845 Four rail circuit architecture for ultra-low power and voltage CMOS circuit design September 29, 1998
A circuit architecture is disclosed wherein power is supplied to a CMOS circuit through a first pair of voltage rails, including a first voltage rail (12) providing a first voltage and a second voltage rail (14) providing a second voltage, and a second pair of voltage rails, including
5809144 Method and apparatus for purchasing and delivering digital goods over a network September 15, 1998
A method for purchasing and delivering goods over a network is comprised of the steps of identifying a digital good to be purchased. A purchase price for the digital good is negotiated. After the negotiation step, an authenticated purchase request is sent to the merchant. The merchant
5807937 Processes based on atom (or group) transfer radical polymerization and novel (co) polymers havin September 15, 1998
Improved processes have been developed for atom (or group) transfer radical polymerization (ATRP). In one improvement, the ATRP process involves polymerizing in the presence of a (partially) free radical-deactivating amount of the corresponding reduced or oxidized transition metal compou
5801881 Field synthesis and optical subsectioning for standing wave microscopy September 1, 1998
In an improved optical microscope for observing a luminescent specimen, the specimen is excited by a single, on axis or multiple superposed series of standing wave fields. Then an image of the specimen is recorded and displayed. This specimen can be incrementally moved and additional ima
5800931 Magnetic recording medium with a MgO sputter deposited seed layer September 1, 1998
The present invention provides a longitudinal magnetic recording media having a substrate, a sputter deposited MgO seed layer, a Co or Co alloy based magnetic layer and an underlayer disposed between the seed layer and the magnetic layer comprised of Cr, a Cr alloy or a material having a
5796512 Subicron imaging system having an acousto-optic tunable filter August 18, 1998
An imaging system comprises an acousto-optic tunable filter for receiving light at an input end thereof and outputting light at an output end thereof. A control circuit is provided for tuning the filter. A prism is responsive to the light output by the tunable filter. The prism is or
5789487 Preparation of novel homo- and copolymers using atom transfer radical polymerization August 4, 1998
The present invention is directed to a process of atom (or group) transfer radical polymerization for the synthesis of novel homopolymer or a block or graft copolymer, optionally containing at least one polar group, with well defined molecular architecture and narrow polydispersity index
5783263 Process for forming nanoparticles July 21, 1998
A metal or alloy nanoparticle is provided which exhibits hysteresis at room temperature having a carbon coating. The nanoparticle has a diameter in the range of approximately 0.5 to 50 nm, and may be crystalline or amorphous. The metal, alloy, or metal carbide nanoparticle is formed by
5781698 Method of autonomous machine learning July 14, 1998
A classifier for signal classification based on a plurality of classification signals can be generated in three phases: a training phase, an orchestration phase, and a final classifier phase. In the training phase, genetic programming techniques are used to evolve a population of cla
5772902 Method to prevent adhesion of micromechanical structures June 30, 1998
A method is provided for inhibiting stiction of suspended microstructures during post-release-etch rinsing and drying. The microstructures are shaped to include additional convex corners at regions of the released portion of the microstructure that can undergo substantial displacement
5763548 (Co)polymers and a novel polymerization process based on atom (or group) transfer radical polyme June 9, 1998
A new polymerization process (atom transfer radical polymerization, or ATRP) based on a redox reaction between a transition metal (e.g., Cu(I)/Cu(II), provides "living" or controlled radical polymerization of styrene, (meth)acrylates, and other radically polymerizable monomers. Using
5759151 Flexible steerable device for conducting exploratory procedures June 2, 1998
A flexible, steerable device for conducting exploratory procedures is disclosed. The device includes at least one spine, each having stiffening means for selectively rendering the spine rigid and flexible along its length. A flexible sheath surrounds the spine and is axially slidably
5753465 Unmodified recombinant human adult hemoglobin production May 19, 1998
Methods for obtaining unmodified recombinant human normal adult hemoglobin involve a novel expression plasmid that coexpresses human .alpha.- and .beta.-globin genes and E. coli methionine aminopeptidase genes under the control of separate tac promoters. Methods are also provided for
5748954 Method for searching a queued and ranked constructed catalog of files stored on a network May 5, 1998
A method of constructing a catalog of files stored on a network comprised of a plurality of interconnected computers each having a plurality of files stored thereon. The method is accomplished by establishing a queue containing at least one address representative of a file stored on one
5717631 Microelectromechanical structure and process of making same February 10, 1998
A microelectromechanical device is comprised of a cantilevered beam positioned above, and free to move relative to, a substrate. The beam may carry a plurality of conductors which are insulated from one another. One or more tips is positioned on the beam with each tip being in electrical
5715060 Apparatus and method for measuring linear nanometric distances using evanescent radiation February 3, 1998
An apparatus and method is disclosed for measuring the distance between a first body having a first surface separated by a medium from a second body through the use of transmitted evanescent radiation. The first body is substantially radiation transparent and has a critical angle of tota
5712957 Locating and correcting erroneously recognized portions of utterances by rescoring based on two January 27, 1998
A method of repairing machine-recognized speech is comprised of the steps of receiving from a recognition engine a first n-best list of hypotheses and scores for each hypothesis generated in response to a primary utterance to be recognized. An error within the hypothesis having the h
5693426 Magnetic recording medium with B2 structured underlayer and a cobalt-based magnetic layer December 2, 1997
The present invention provides a longitudinal magnetic recording media having a substrate, a Co or Co alloy based layer and an underlayer disposed between the substrate and the magnetic layer comprised of a material having a B2 ordered crystalline structure, preferably NiAl or FeAl.
5689591 Apparatus and method for noncausal, predictive, digital image compression November 18, 1997
The present invention is directed to an apparatus and method for converting a noncausal, two dimensional signal representative of a digitized image into an equivalent data format that can be filtered by recursive filters. The first step is to estimate an optimal set of parameters by: gen
5684807 Adaptive distributed system and method for fault tolerance November 4, 1997
An adaptive distributed diagnostic system and method for a network having at least a first, a second and a third nodes. Both the third and first nodes and the third and second nodes, respectively, are in communication with each other via the network. The first node can directly test a st
5676850 Micromechanical barb and method for making the same October 14, 1997
The present invention pertains to a method for making a plurality of barbs. The method is comprised of the steps of first forming a substrate of a first material with a layer of a second material thereon, and at predetermined discrete locations on the layer a third material. Next, th
5675489 System and method for estimating lateral position October 7, 1997
A system for estimating lateral offset of a vehicle from a centered position on a road is comprised of a video camera and a digitizer to produce digitized input signals representative of the road ahead of the vehicle. A circuit is provided for sampling the digitized input signal to c
5664227 System and method for skimming digital audio/video data September 2, 1997
A method for skimming digital audio and video data, wherein the video data is partitioned into video segments and the audio data has been transcribed, is comprised of the steps of selecting representative frames from each of the video segments. The representative frames are combined to
5658636 Method to prevent adhesion of micromechanical structures August 19, 1997
A method is provided for inhibiting stiction of suspended microstructures during post-release-etch rinsing and drying. The microstructures are shaped to include additional convex corners at regions of the released portion of the microstructure that can undergo substantial displacement
5627027 Cyanine dyes as labeling reagents for detection of biological and other materials by luminescenc May 6, 1997
Cyanine and related dyes, are strongly light absorbing and highly luminescent. These dyes are covalently attached to proteins and other biological and nonbiological materials to make these materials fluorescent so that they can be detected. The labeled materials can then be used in a
5599701 Inositol-excreting yeast February 4, 1997
A yeast cell, preferably Saccharomyces cerevisiae, which contains a functional stable recombinant DNA sequence that does not allow for the encoding of a negative regulator of phospholipid biosynthesis therein. In a preferred embodiment, the recombinant DNA sequence is an opil gene de
5581677 Creating charts and visualizations by demonstration December 3, 1996
A system and method to automatically produce a display chart from example graphics and data values. New or existing example graphics are drawn with a programmable data processing system, and the drawn graphical elements within the chart are identified. A data value is then associated wit
5574640 Case-based scheduling method for creating a schedule November 12, 1996
The present invention is embodied in a machine-implemented method of automatically correcting errors in an industrial schedule. The invention maintains a set of repair heuristics which may be applied to correct errors in the schedule. The system is initially trained by an expert who
5569766 Method for labeling and detecting materials employing arylsulfonate cyanine dyes October 29, 1996
A method for detecting a component of an aqueous liquid comprising adding to the liquid a luminescent dye selected from the group consisting of cyanine, merocyanine and styryl dyes containing at least one sulfonic acid or sulfonate group attached to an aromatic nucleus and reacting the d
5569587 Method for labeling and detecting materials employing luminescent arysulfonate cyanine dyes October 29, 1996
A method for detecting a component of an aqueous liquid comprising adding to the liquid a luminescent dye selected from the group consisting of cyanine, merocyanine and styryl dyes containing at least one sulfonic acid or sulfonate group attached to an aromatic nucleus and reacting the d
5569272 Tissue-connective devices with micromechanical barbs October 29, 1996
A system for linking a first member with a second member. The system is comprised of a first plurality of micromechanical barbs disposed on the first member. The system is also comprised of a second plurality of micromechanical barbs disposed on the second member. The barbs on the fi
5549973 Metal, alloy, or metal carbide nanoparticles and a process for forming same August 27, 1996
A metal or alloy nanoparticle is provided which exhibits hysteresis at room temperature having a carbon coating. The nanoparticle has a diameter in the range of approximately 0.5 to 50 nm, and may crystalline or amorphous. The metal, alloy, or metal carbide nanoparticle is formed by prep
5537653 Method for on-line diagnosis for distributed network systems July 16, 1996
An on-line adaptive distributed diagnostic method for use in an arbitrary network comprised of N nodes, where N is greater than or equal to 3. The algorithms of the present invention provide on-line diagnosis in the presence of node and link failure. In the network, each node is capable
5529912 Inositol-excreting yeast June 25, 1996
A yeast cell, preferably Saccharomyces cerevisiae, which contains a functional stable recombinant DNA sequence that does not allow for the encoding of a negative regulator of phospholipid biosynthesis therein and which has multiple copies of an INO1 gene. In a preferred embodiment, the
5528604 Test pattern generation for an electronic circuit using a transformed circuit description June 18, 1996
Test pattern generation for a sequential logic circuit having combinational logic elements and sequential elements (D flip-flops) is enhanced in generation time and test pattern quality by first transforming the circuit to simplify the circuit for test pattern generation. In one embodime
5521324 Automated musical accompaniment with multiple input sensors May 28, 1996
The present invention is directed to an apparatus and method for automating accompaniment to an ensemble's performance. The apparatus is comprised of a plurality of input devices with each input device producing an input signal containing information related to an ensemble's performance.
5516744 Alumina catalysts support manufacture May 14, 1996
Disclosed is a process for providing an improved catalyst support comprising the steps of providing a dispersion of alumina in water, the dispersion maintained under acidic conditions; adding a stabilizing agent to said dispersion, the stabilizing agent capable of stabilizing said di
5516743 Alumina catalyst support preparation May 14, 1996
Disclosed is a process for providing an improved catalyst support comprising the steps of providing a dispersion of alumina in water, the dispersion maintained under acidic conditions; and adding a stabilizing agent to said dispersion, the stabilizing agent capable of stabilizing sai
5486616 Method for labeling and detecting materials employing arylsulfonate cyanine dyes January 23, 1996
A method for detecting a component of an aqueous liquid comprising adding to the liquid a luminescent dye selected from the group consisting of cyanine, merocyanine and styryl dyes containing at least one sulfonic acid or sulfonate group attached to an aromatic nucleus and reacting the d
5456986 Magnetic metal or metal carbide nanoparticles and a process for forming same October 10, 1995
A magnetic metal or metal carbide nanoparticle is provided having a carbon coating. The nanoparticle has a diameter in the range of approximately 5 to 60 nm, and may be crystalline or amorphous. The magnetic metal or metal carbide nanoparticle is formed by preparing graphite rods which a
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