Quantum Patent Grants

Mobile secret communications method based on quantum key distribution network

Granted: May 16, 2017
Patent Number: 9654287
A mobile secret communications method based on a quantum key distribution network, comprises the following steps: a mobile terminal registering to access the network and establishing a binding relationship with a certain centralized control station in the quantum key distribution network; after a communication service is initiated, the mobile terminals participating in the current communication applying for service keys from the quantum key distribution network; the quantum key…

Biomolecule sequencing devices, systems and methods

Granted: May 9, 2017
Patent Number: 9644236
Devices, systems and methods for sequencing protein samples are provided. In some examples, currents generated when a monomer passes through between electrodes of a nanogap electrode pair are measured for each of several different distances, so that monomers are identified when compared to a reference physical quantity of a known monomer, which may be obtained from a current measured with a similar inter-electrode distance(s) at which each of plural kinds of monomers are identifiable and…

Superlattice materials and applications

Granted: May 2, 2017
Patent Number: 9640616
A superlattice cell that includes Group IV elements is repeated multiple times so as to form the superlattice. Each superlattice cell has multiple ordered atomic planes that are parallel to one another. At least two of the atomic planes in the superlattice cell have different chemical compositions. One or more of the atomic planes in the superlattice cell one or more components selected from the group consisting of carbon, tin, and lead. These superlattices make a variety of applications…

Nanostructured materials for electrochemical conversion reactions

Granted: May 2, 2017
Patent Number: 9640793
The disclosure is related to battery systems. More specifically, embodiments of the disclosure provide a nanostructured conversion material for use as the active material in battery cathodes. In an implementation, a nanostructured conversion material is a glassy material and includes a metal material, one or more oxidizing species, and a reducing cation species mixed at a scale of less than 1 nm. The glassy conversion material is substantially homogeneous within a volume of 1000 nm3.

Multi-piece molded composite mandrel and methods of manufacturing

Granted: April 25, 2017
Patent Number: 9631452
A mandrel for downhole isolation tools includes multiple composite pieces assembled about a common longitudinal axis at one or more common joint surfaces to form said mandrel, wherein each of said composite pieces is configured having a cross-sectional area less than the cross-sectional area of said mandrel, and an attachment mechanism configured to secure together said common joint surfaces.

Object synthesis

Granted: April 25, 2017
Patent Number: 9633032
Apparatus, methods, and other embodiments associated with object synthesis are described. One example apparatus includes logic for identifying a block in a data de-duplication repository and for identifying a reference to the block. The apparatus also includes logic for representing a source object using a first named, organized collection of references to blocks in the data de-duplication repository and logic for representing a target object using a second named, organized collection of…

Solid state catholytes and electrolytes for energy storage devices

Granted: April 25, 2017
Patent Number: 9634354
The present invention provides an energy storage device comprising a cathode region or other element. The device has a major active region comprising a plurality of first active regions spatially disposed within the cathode region. The major active region expands or contracts from a first volume to a second volume during a period of a charge and discharge. The device has a catholyte material spatially confined within a spatial region of the cathode region and spatially disposed within…

Content distribution system and method

Granted: April 25, 2017
Patent Number: 9635408
Methods, systems, and articles of manufacture consistent with the present invention provide an electronic marketplace that matches units of content from secondary content providers with suitable vacancies from primary content providers. Vacancies may constitute, or be included in, any digital transmission containers, such as a television or radio programming, web pages, and the like. Specifically, the electronic marketplace automatically matches content offered by secondary content…

Pulsed laser and bioanalytic system

Granted: April 11, 2017
Patent Number: 9617594
Apparatus and methods for producing ultrashort optical pulses are described. A high-power, solid-state, passively mode-locked laser can be manufactured in a compact module that can be incorporated into a portable instrument for biological or chemical analyses. The pulsed laser may produce sub-100-ps optical pulses at a repetition rate commensurate with electronic data-acquisition rates. The optical pulses may excite samples in reaction chambers of the instrument, and be used to generate…

Concentric shells for compressed gas storage

Granted: April 11, 2017
Patent Number: 9618157
Gas containment vessels are provided that are comprised of an inner corrosion resistant shell made of lower strength steel alloy or aluminum alloy or thermoplastic polymer, and an outer concentric shell constructed of high strength, albeit lower corrosion resistant, metal or fiber-reinforced composite. The fiber can comprise filaments derived from basaltic rocks, the filaments having been immersed in a thermosetting or thermoplastic polymer matrix, and commingled with carbon, glass or…

Gas-flow cryostat for dynamic temperature regulation using a fluid level sensor

Granted: April 11, 2017
Patent Number: 9618257
A gas-flow cryostat adapted for dynamic temperature regulation using a fluid level sensor; the cryostat further including one or more heaters coupled to various components of the cryostat. As fluid evaporates from a liquid cryogen evaporation reservoir within the cryostat, the fluid level sensor and a feedback control unit are adapted to monitor and dynamically control the level of evaporating cryogen by regulating the heaters. Accordingly, the cryostat is adapted to dynamically control…

Coherent spin field effect transistor

Granted: April 11, 2017
Patent Number: 9620654
A voltage switchable coherent spin field effect transistor is provided by depositing a ferromagnetic base like cobalt on a substrate. A chrome oxide layer is formed on the cobalt by MBE at room at UHV at room temperature. There was thin cobalt oxide interface between the chrome oxide and the cobalt. Other magnetic materials may be employed. A few ML field of graphene is deposited on the chrome oxide by molecular beam epitaxy, and a source and drain are deposited of base material. The…

Fishtail packaging and cooling

Granted: April 11, 2017
Patent Number: 9622384
A combined battery charger and motor driver circuit assembly includes a plurality of power transistors arranged as a planar array, a cold plate configured to couple heat from each of the transistors in the array, a conductive power coupling fitting (also termed a bus bar), at least one capacitor, and a ferrite bead filter surrounding a necked section of the bus bar. The bus bar has a plurality of individually electrically conductive layers, each two of the layers being separated by an…

Coherent spin field effect transistor

Granted: April 4, 2017
Patent Number: 9614149
A coherent spin field effect transistor is provided by depositing a ferromagnetic base like cobalt on a substrate. A magnetic oxide layer is formed on the cobalt by annealing at temperatures on the order of 1000° K to provide a few monolayer thick layer. Where the gate is cobalt, the resulting magnetic oxide is Co3O4 (111). Other magnetic materials and oxides may be employed. A few ML field of graphene is deposited on the cobalt (III) oxide by molecular beam epitaxy, and a source and…

Sensing strategies and methods for nucleic acid detection using biosensors

Granted: March 28, 2017
Patent Number: 9605302
Embodiments of the present invention relate generally to strategies and methods of amplifying short target sequences and removing flanking sequences from target nucleic acids to remove background signal when detecting hybridizations events using sensitive detection biosensors, such as biosensors based on nanowires, carbon nanotubes, nanopores etc, that may be capable of detecting molecules at small molar concentrations (fM and less), or even at the single molecule level. Furthermore, by…

Integrated device for temporal binning of received photons

Granted: March 28, 2017
Patent Number: 9606058
An integrated circuit includes a photodetection region configured to receive incident photons. The photodetection region is configured to produce a plurality of charge carriers in response to the incident photons. The integrated circuit also includes at least one charge carrier storage region. The integrated circuit also includes a charge carrier segregation structure configured to selectively direct charge carriers of the plurality of charge carriers into the at least one charge carrier…

Decoy bits method for direct encryption and key generation

Granted: March 28, 2017
Patent Number: 9608802
A new cryptographic technique is disclosed, called decoy bits method, which can be used to obtain near ideal information theoretic security in both quantum and classical key generation and data encryption, not only for raw security but also under known-plaintext attacks. The technique relates to a method of data encryption by insertion of random bits, called decoy bits, into a data sequence whereby the decoy bits are discarded upon decryption. The positions of the decoy bits are…

Media library including storage media retrieval assembly

Granted: March 21, 2017
Patent Number: 9601149
A retrieval assembly (22) for moving storage media (16) within a media library (10), the media library (10) including a rack assembly (20) having a first rack (20A) and a spaced apart second rack (20B), comprises a picker system (32), an assembly base (30), a first mover (28A), a second mover (28B), and a control system (26). The picker system (32) selectively engages the storage media (16). The assembly base (30) supports the picker system (32). The first mover (28A) is secured to the…

Media library including storage media retrieval assembly

Granted: March 21, 2017
Patent Number: 9601150
A storage media retrieval assembly (22) for moving storage media (16) within a media library (10) including a library housing (12), comprises a picker system (32), an assembly base (30), and a first sensor (240A). The picker system (32) selectively engages the storage media (16). The assembly base (30) supports the picker system (32). The assembly base (30) is movable relative to the library housing (12). The first sensor (240A) senses if the assembly base (30) is level relative to the…

Passive waveguide structure with alternating GaInAs/AlInAs layers for mid-infrared optoelectronic devices

Granted: March 21, 2017
Patent Number: 9601901
Disclosed is a semiconductor optical emitter having an optical mode and a gain section, the emitter comprising a low loss waveguide structure made of two alternating layers of semiconductor materials A and B, having refractive indexes of Na and Nb, respectively, with an effective index No of the optical mode in the low loss waveguide between Na and Nb, wherein No is within a 5% error margin of identical to a refractive index of the gain section and wherein the gain section is…