Quantum Patent Grants

Using a mesoscopic system to generate entanglement

Granted: October 17, 2017
Patent Number: 9792558
In some aspects, a mesoscopic system is used to generate entanglement, for example, on a pair of qubits. In some implementations, the mesoscopic system includes a first spin, a second spin and multiple other spins. The initial state of the first and second spins can be separable (non-entangled) states. Measurement outcomes are obtained by performing projective measurements on the mesoscopic system. Based on the measurement outcomes, an entangled state of the first and second spins is…

Tape storage device having at least one redundant read data element

Granted: October 17, 2017
Patent Number: 9792928
A technique includes in a data storage device, sensing a plurality of data streams from a track of storage media as the media moves in a given direction using a plurality of read elements such that at least one of the read elements is redundant. The technique includes combining the data streams to generate a data stream indicating data read from the track.

Iron, fluorine, sulfur compounds for battery cell cathodes

Granted: October 10, 2017
Patent Number: 9786905
Provided herein are energy storage device cathodes with high capacity electrochemically active material including compounds that include iron, fluorine, sulfur, and optionally oxygen. Batteries with active materials including a compound of the formula FeFaSbOc exhibit high capacity, high specific energy, high average discharge voltage, and low hysteresis, even when discharged at high rates. Iron, fluorine, and sulfur-containing compounds may be ionically and electronically conductive.

Integrated device with external light source for probing detecting and analyzing molecules

Granted: October 10, 2017
Patent Number: 9784679
System and methods for analyzing single molecules and performing nucleic acid sequencing. An integrated device includes multiple pixels with sample wells configured to receive a sample, which when excited, emits radiation. The integrated device includes at least one waveguide configured to propagate excitation energy to the sample wells from a region of the integrated device configured to couple with an excitation energy source. A pixel may also include at least one element for directing…

Combined amplitude-time and phase modulation

Granted: September 26, 2017
Patent Number: 9774348
A method for multi-dimensional modulation of a network protocol including control data and payload data. The method includes encoding a first sine wave with the control data; encoding a second sine wave with the payload data; and summing the first and second sine waves to generate a compound sine wave. In some embodiments, the control data is header information for a first Ethernet packet and post-payload data for a second Ethernet packet; and the payload data is payload data for the…

Laser

Granted: September 19, 2017
Patent Number: 9768579
A laser comprises a first end mirror and a second end mirror defining an optical cavity therebetween, a first gain medium and a second gain medium positioned in the optical cavity, at least one radiation source configured to provide pump radiation to the first and second gain media, wherein the pump radiation comprises a first pump beam directed to be incident on the first gain medium and a second pump beam directed to be incident on the second gain medium so as to stimulate emission of…

Integrated device for temporal binning of received photons

Granted: September 12, 2017
Patent Number: 9759658
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…

Pulse plating of lithium material in electrochemical devices

Granted: September 12, 2017
Patent Number: 9761861
The present invention is directed to battery system and operation thereof. In an embodiment, lithium material is plated onto the anode region of a lithium secondary battery cell by a pulsed current. The pulse current may have both positive and negative polarity. One of the polarities causes lithium material to plate onto the anode region, and the opposite polarity causes lithium dendrites to be removed. There are other embodiments as well.

Methods for controlling objects using a motion based control apparatus

Granted: August 29, 2017
Patent Number: 9746935
An electrical switch apparatus including a movement sensitive form is disclosed. The apparatus includes a housing, a motion sensor and a processing unit, where motion on, near or about the motion sensor is translated into output commands adapted for list scrolling, where the list can be arranged in a hierarchy such as menus or for changing a value of an attribute of a electrical device under the control of the switch.

Graphene field effect transistor

Granted: August 29, 2017
Patent Number: 9748340
Graphene FETs exhibit low power consumption and high switching rates taking advantage of the excellent mobility in graphene deposited on a rocksalt oxide (111) by chemical vapor deposition, plasma vapor deposition or molecular beam epitaxy. A source, drain and electrical contacts are formed on the graphene layer. These devices exhibit band gap phenomena on the order of greater than about 0.5 eV, easily high enough to serve as high speed low power logic devices. Integration of this…

Garbage collection and defragmentation for solid state drives (SSD) and shingled magnetic recording (SMR) drives

Granted: August 15, 2017
Patent Number: 9734051
Example apparatus and methods provide improved reclamation, garbage collection (GC) and defragmentation (defrag) for data storage devices including solid state drives (SSD) or shingled magnetic recording (SMR) drives. An erasure code (EC) layer that facilitates logically or physically erasing data from the SSD or SMR as a comprehensive GC or defrag is added to the SSD or SMR. Erased data may be selectively recreated from the EC layer as needed. Pre-planned EC write zones may be…

Moving-body tracking device for radiation therapy, irradiation region determining device for radiation therapy, and radiation therapy device

Granted: August 8, 2017
Patent Number: 9724540
A radiation therapy apparatus includes a radiation irradiation unit 35, an X-ray imaging unit 36, a CT imaging device 37, a treatment planning device 38, and a controller 10. The controller 10 includes a CT image deformation amount calculation unit 11, a shape calculation unit 12, an irradiation region determining unit 13, an X-ray image deformation amount calculation unit 14, a position calculation unit 15, a template matching unit 16, a comparison unit 17, a correction unit 18, and an…

Dynamically controlling erasure code distribution in an object store

Granted: August 8, 2017
Patent Number: 9727437
Example apparatus and methods monitor conditions in an object storage system. The conditions monitored may include a load balance measure in the system, a capacity balance measure in the system, a fault tolerance measure in the system, or a usage pattern measure in the system. A distribution plan or redistribution plan for storing or moving erasure codes in the object storage system may be determined based on the conditions. The distribution plan or the redistribution plan for the…

Laser system with partial reflector

Granted: August 1, 2017
Patent Number: 9720242
A laser system comprising a laser configured to emit a laser beam wherein the laser beam is linearly polarized in a polarization plane and an optical assembly comprising a partial reflector having a refractive index and comprising a partially reflective surface. The partially reflective surface is arranged to receive the laser beam at an angle of incidence which lies in a plane of incidence and reflect a portion of the laser beam such that the reflected portion is output from the optical…

Tanks forming rack superstructure

Granted: July 18, 2017
Patent Number: 9707841
A support structure which includes tank formed rack comprising at least two modules affixed to each other via attached bases and a method of reduced weight storage of fuel tanks also for use in motor vehicles wherein the fuel tanks via attached bases are used to form a portion of the rack superstructure.

Plasma powder sterilization apparatus and methods

Granted: July 4, 2017
Patent Number: 9694095
Systems and methods for plasma sterilization are described. The sterilization method includes placing a substance to be sterilized in a rotating chamber (e.g., drum) and exposing the substance to a radio frequency (RF) plasma. The mixing of the substance and plasma is further promoted by generating a magnetic field that produces a force on the substance in a direction opposite to the rotational direction of the chamber. In other aspects, the chamber may have a gas permeable wall. In…

Integrated device for temporal binning of received photons

Granted: July 4, 2017
Patent Number: 9696258
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…

Presenting a file system for a file containing items

Granted: July 4, 2017
Patent Number: 9697085
What is disclosed is a method of operating a volume access system. The method includes processing at least a first file to generate a file system view of the first file comprising a plurality of items within the first file, and providing the file system view of the first file over a network interface as a hierarchical data volume. The method also includes receiving an access request for a requested item of the hierarchical data volume over the network interface, and in response,…

Nanostructured materials for electrochemical conversion reactions

Granted: June 27, 2017
Patent Number: 9692039
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.

Data deduplication with adaptive erasure code redundancy

Granted: June 27, 2017
Patent Number: 9692452
Example apparatus and methods combine erasure coding with data deduplication to simultaneously reduce the overall redundancy in data while increasing the redundancy of unique data. In one embodiment, an efficient representation of a data set is produced by deduplication. The efficient representation reduces duplicate data in the data set. Redundancy is then added back into the data set using erasure coding. The redundancy that is added back in adds protection to the unique data…