Polarization independent DQPSK demodulation integrated optical chip
Granted: January 30, 2024
Patent Number:
11888531
The application discloses a polarization independent DQPSK demodulation integrated optical chip, which comprises a first beam splitter, a first polarization beam splitter rotator, a second beam splitter, a third beam splitter, a first quarter-wave plate, a first delayed optical waveguide, and a second polarization beam splitter rotator that are integrated on a same substrate.
Controlling electric fields in vapor cells
Granted: January 30, 2024
Patent Number:
11885842
In a general aspect, a method includes interacting a beam of light with a vapor in a vapor cell. The vapor cell includes a body defined by a stack of layers that includes electrically conductive layers and electrically insulating layers. The stack of layers are bonded to each other and have first and second end layers at respective opposite ends of the body. The stack of layers also has intermediate layers between the first and second end layers that define an internal cavity of the…
Sensor for lifetime plus spectral characterization
Granted: January 30, 2024
Patent Number:
11885744
Some aspects relate to integrated devices for obtaining timing and/or spectral information from incident light. In some embodiments, a pixel may include one or more charge storage regions configured to receive charge carriers generated responsive to incident photons from a light source, with charge carriers stored in the charge storage region(s) indicative of spectral and timing information. In some embodiments, a pixel may include regions having different depths, each configured to…
Rotary kiln preheater thermal monitoring systems
Granted: January 30, 2024
Patent Number:
11885566
A system for measuring temperatures of a preheater of a rotary kiln can include: at least one infrared imaging sensor for each level of the preheater; and an imaging analysis computer operably coupled with the at least one infrared imaging sensor of each level of the preheater. The imaging analysis computer can be configured to: obtain a 3D model of a preheater level of the preheater; obtain at least one infrared image of a fixed field of view of the preheater level of the preheater;…
Thermal management system for vehicles with an electric powertrain
Granted: January 30, 2024
Patent Number:
11884183
This patent application is directed to thermal management systems of vehicles with an electric powertrain. More specifically, the battery system and one or more powertrain components and/or cabin climate control components of a vehicle share the same thermal circuit as the battery module through which heat can be exchanged between the battery module and one or more powertrain or climate control components as needed.
Method and system for quantum key distribution
Granted: January 23, 2024
Patent Number:
11882212
A system method for quantum key includes providing an initial key in a first data processing device and a second data processing device; providing, in the second data processing device, a quantum signal comprising a plurality of quantum states; determining, in the second data processing device, a plurality of quantum measurement parameters, a raw signal by quantum measuring the plurality of quantum states employing the plurality of quantum measurement parameters; generating with the…
Solid electrolyte separator bonding agent
Granted: January 23, 2024
Patent Number:
11881596
Set forth herein are electrochemical cells which include a negative electrode current collector, a lithium metal negative electrode, an oxide electrolyte membrane, a bonding agent layer, a positive electrode, and a positive electrode current collector. The bonding agent layer advantageously lowers the interfacial impedance of the oxide electrolyte at least at the positive electrode interface and also optionally acts as an adhesive between the solid electrolyte separator and the positive…
Clock generation for a photonic quantum computer comprising a photon-pair source to convert the converted electrical pulses into a plurality of clock signals at a first repetition rate
Granted: January 23, 2024
Patent Number:
11880115
A system for generating clock signals for a photonic quantum computing system includes a pump photon source configured to generate a plurality of pump photon pulses at a first repetition rate, a waveguide optically coupled to the pump photon source, and a photon-pair source optically coupled to the first waveguide. The system also includes a photodetector optically coupled to the photon-pair source and configured to generate a plurality of electrical pulses in response to detection of at…
Optical system and assay chip for probing, detecting and analyzing molecules
Granted: January 23, 2024
Patent Number:
11879841
Apparatus and methods for analyzing single molecule and performing nucleic acid sequencing. An apparatus can include an assay chip that includes multiple pixels with sample wells configured to receive a sample, which, when excited, emits emission energy; at least one element for directing the emission energy in a particular direction; and a light path along which the emission energy travels from the sample well toward a sensor. The apparatus also includes an instrument that interfaces…
Thin film lithium conducting powder material deposition from flux
Granted: January 16, 2024
Patent Number:
11876208
The present invention is directed to battery technologies and processing techniques thereof. In various embodiments, ceramic electrolyte powder material (or component thereof) is mixed with two or more flux to form a fluxed powder material. The fluxed powder material is shaped and heated again at a temperature less than 1100° C. to form a dense lithium conducting material. There are other variations and embodiments as well.
Remote distress monitor
Granted: January 16, 2024
Patent Number:
11875658
A remote distress monitor includes a steerable microphone array, a memory, and a control system. The steerable microphone array is configured to detect audio data and generate sound data. The memory stores machine-readable instructions. The control system includes one or more processors configured to execute the machine-readable instructions. The generated sound data from the steerable microphone array is analyzed. Based at least in part on the analysis, a token associated with the audio…
Systems and methods for unifying statistical models for different data modalities
Granted: January 16, 2024
Patent Number:
11875267
Techniques for performing a prediction task using a multi-modal statistical model configured to receive input data from multiple modalities including input data from a first modality and input data from a second modality different from the first modality. The techniques include: obtaining information specifying the multi-modal statistical model including values of parameters of each of multiple components of the multi-modal statistical model, the multiple components including first…
Interferometer filters with compensation structure
Granted: January 16, 2024
Patent Number:
11874496
A photonic switch includes a first waveguide including a first region extending between a first coupler section and a second coupler section and a second region extending between the second coupler section and a third coupler section. The photonic switch also includes a second waveguide including a first portion extending between the first coupler section and the second coupler section, the first portion including at least two first compensation sections each having a different waveguide…
Detecting radio frequency electromagnetic radiation using vapor cell sensors and comb spectra
Granted: January 16, 2024
Patent Number:
11874311
In a general aspect, radio frequency (RF) electromagnetic radiation can be detected using vapor cell sensors. In some aspects, a system includes a laser system that is configured to generate laser signals that comprise first and second laser signals. The system also includes an optical comb generator and a vapor cell sensor. The optical comb generator is configured to generate a comb spectrum based on the first laser signal. The comb spectrum includes comb lines at respective comb…
Fishing lure clapper device
Granted: January 16, 2024
Patent Number:
11871736
A fishing lure clapper device may include a fishing lure such as a spoon lure or spinner lure. A strike member may be loosely attached to the fishing lure. The strike member may have at least one water flow contact surface. The water flow contact surface may be at least partially concave and/or at least partially convex. Accordingly, throughout retrieval of the lure on a fishing line through water in a water body, flow of the water against the water flow contact surface of the strike…
Integrated sensor for lifetime characterization
Granted: January 9, 2024
Patent Number:
11869917
Aspects of the technology described herein relate to improved semiconductor-based image sensor designs. In some embodiments, an integrated circuit may comprise a photodetection region and a drain region electrically coupled to the photodetection region, and the photodetection region may be configured to induce an intrinsic electric field in a direction from the photodetection region to the drain region(s). In some embodiments, a charge storage region and the drain region may be…
Antenna structure
Granted: January 2, 2024
Patent Number:
11862869
An antenna structure includes a substrate, a plurality of reflective plates, a grounding plate, a radiating member and a plurality of conductive vias. The substrate contains liquid crystal polymer and has opposite first and second surfaces. The reflective plates are arranged in an array on the first surface of the substrate. The grounding plate is arranged on the second surface of the substrate and overlaps with the reflective plates in a normal direction of the substrate. The radiating…
Electrolyte separators including lithium borohydride and composite electrolyte separators of lithium-stuffed garnet and lithium borohydride
Granted: December 26, 2023
Patent Number:
11855251
Set forth herein are compositions comprising A·(LiBH4)·B·(LiX)·C·(LiNH2), wherein X is fluorine, bromine, chloride, iodine, or a combination thereof, and wherein 0.1?A?3, 0.1?13?4, and 0?C?9 that are suitable for use as solid electrolyte separators in lithium electrochemical devices. Also set forth herein are methods of making A·(LiBH4)·B·(LiX)·C·(LiNH2) compositions. Also disclosed herein are electrochemical devices which incorporate A·(LiBH4)·B·(LiX)·C·(LiNH2)…
Target cell concentration using dielectrophoresis (DEP)
Granted: December 26, 2023
Patent Number:
11850593
Methods and devices for concentrating target cells using dielectrophoresis (DEP) are disclosed. The method allows relatively high throughput of sample through a microfluidic device in order to allow rapid capture of target cells even when they are present in low concentrations within the sample. The method utilizes multiple chambers through which samples will flow, the chambers arranged such that the first capture area has a larger area and faster flow rate than a second chamber, the…
Compact mode-locked laser module
Granted: December 19, 2023
Patent Number:
11848531
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. The mode-locked laser can produce sub-50-ps optical pulses at a repetition rates between 200 MHz and 50 MHz, rates suitable for massively parallel data-acquisition. The optical pulses can be used to generate a reference clock signal for synchronizing data-acquisition…
