Abstract: A unipolar-doped light emitting diode or laser diode is described. The diode includes a bottom region having an n-type layer, a top region having an n-type layer, and a middle region between the top and bottom regions having at least one material different from the top or bottom region forming two or more heterojunctions. The top and bottom regions create light emission by interband tunneling-induced photon emission. Systems including the unipolar-doped diode including LIDAR are also taught.

Abstract: A bird feeder support pole that is configured to selectively elevate and lower a crossbeam assembly supporting one or more bird feeders. The support pole eliminates the need to climb ladders or other objects to replenish the feeder with a bird feed. The crossbeam assembly is mounted with a trolley assembly that is movable along a length of the support pole via an elevating mechanism.

Abstract: A component which is configured to switch an electrical signal, the component includes an insulating substrate bearing a semiconductor chip which ensures switching of the signal; a sole plate on which the substrate is secured, the sole plate being configured to discharge heat emitted during switching of the component; a conductive plane positioned between the sole plate and the insulating substrate, the conductive plane being insulated electrically against the sole plate; a specific component with impedance of at least 1 Ohm and/or at least 1 µH, by means of which the conductive plane is connected to a reference voltage.

Abstract: A switching component configured to switch an electrical signal, the switching component includes a substrate bearing several elementary components each ensuring the switching of the electrical signal, a baseplate onto which the substrate is fixed, the baseplate being configured to discharge heat emitted in the switchings of the switching component, two electrical conductors each connected to one of the elementary components and respectively ensuring the input and the output of the elementary component concerned for the signal (IC) to be switched, a magnetic core produced in a ferromagnetic material, the magnetic core surrounding the elementary component concerned without surrounding others of the elementary components and being disposed in the component in such a way that a displacement current between the surrounded elementary component and the baseplate induces a magnetic induction in the magnetic core, and in such a way that the path followed by a conduction current of the electrical signal switched by th

Abstract: Gallium nitride based devices and, more particularly to the generation of holes in gallium nitride based devices lacking p-type doping, and their use in light emitting diodes and lasers, both edge emitting and vertical emitting. By tailoring the intrinsic design, a wide range of wavelengths can be emitted from near-infrared to mid ultraviolet, depending upon the design of the adjacent cross-gap recombination zone. The innovation also provides for novel circuits and unique applications, particularly for water sterilization.

Abstract: A unipolar-doped light emitting diode or laser diode is described. The diode includes a bottom region having an n-type layer, a top region having an n-type layer, and a middle region between the top and bottom regions having at least one material different from the top or bottom region forming two or more heterojunctions. The top and bottom regions create light emission by interband tunneling-induced photon emission. Systems including the unipolar-doped diode including LIDAR are also taught.

Abstract: A bird feeder support pole that is configured to selectively elevate and lower a crossbeam assembly supporting one or more bird feeders. The support pole eliminates the need to climb ladders or other objects to replenish the feeder with a bird feed. The crossbeam assembly is mounted with a trolley assembly that is movable along a length of the support pole via an elevating mechanism.

Abstract: Gallium nitride based devices and, more particularly to the generation of holes in gallium nitride based devices lacking p-type doping, and their use in light emitting diodes and lasers, both edge emitting and vertical emitting. By tailoring the intrinsic design, a wide range of wavelengths can be emitted from near-infrared to mid ultraviolet, depending upon the design of the adjacent cross-gap recombination zone. The innovation also provides for novel circuits and unique applications, particularly for water sterilization.

Abstract: A resonant inter-band tunnel diode (RITD) can be fabricated using semiconductor processing similar to that used for Complementary Metal-Oxide-Semiconductor (CMOS) device fabrication, such as can include using silicon. A memory cell (e.g., a random access memory (RAM) cell) can be fabricated to include one or more negative differential resistance device, such as tunneling diodes, such as to provide a single-bit or multi-bit cell. In an example, a “hybrid” memory cell can be fabricated, such as including one or more negative resistance devices, a MOS transistor structure, and a capacitor structure, such as including an integrated capacitor configuration similar to a generally-available dynamic RAM (DRAM) structure, but such as without requiring a refresh and offering a higher area efficiency.

Abstract: A resonant inter-band tunnel diode (RITD) can be fabricated using semiconductor processing similar to that used for Complementary Metal-Oxide-Semiconductor (CMOS) device fabrication, such as can include using silicon. A memory cell (e.g., a random access memory (RAM) cell) can be fabricated to include one or more negative differential resistance device, such as tunneling diodes, such as to provide a single-bit or multi-bit cell. In an example, a “hybrid” memory cell can be fabricated, such as including one or more negative resistance devices, a MOS transistor structure, and a capacitor structure, such as including an integrated capacitor configuration similar to a generally-available dynamic RAM (DRAM) structure, but such as without requiring a refresh and offering a higher area efficiency.

Abstract: The invention relates to a system for assisting the pilot of an aircraft, which comprises aboard the aircraft: a computer, a set of sensors able to provide data to the computer and, a seat for the pilot equipped with haptic actuators controlled by the computer. The computer comprises means for controlling each actuator or groups of actuators independently of one another, as a function of the data provided by the sensors. The seat comprising a back and a cushion, the actuators of the back and of the cushion comprise single-axis mini-rams distributed in the back and the cushion of the seat, whose displacement axes are respectively perpendicular to the back and to the cushion of the seat.

Abstract: A resonant inter-band tunnel diode (RITD) can be fabricated using semiconductor processing similar to that used for Complementary Metal-Oxide-Semiconductor (CMOS) device fabrication, such as can include using silicon. A memory cell (e.g., a random access memory (RAM) cell) can be fabricated to include one or more negative differential resistance device, such as tunneling diodes, such as to provide a single-bit or multi-bit cell. In an example, a “hybrid” memory cell can be fabricated, such as including one or more negative resistance devices, a MOS transistor structure, and a capacitor structure, such as including an integrated capacitor configuration similar to a generally-available dynamic RAM (DRAM) structure, but such as without requiring a refresh and offering a higher area efficiency.

Abstract: The general field of the invention is that of helicopter cockpit display systems. The system according to the invention comprises at least a first mobile display screen. Depending on the mission and in order to optimize the vision of the external landscape, the mobile screen or screens are moved so that they are either in the field of vision of the pilot, or out of his field of vision. The symbologies displayed are adapted according to the mission and to the position of the screen.

Abstract: Inertial sensor having a body with first and second cavities on opposite sides thereof, a sensing element in the first cavity, electronic circuitry in the second cavity, electrical conductors interconnecting the sensing element and the circuitry, and leads connected electrically to the circuitry and extending from the body for mounting the sensor and making connections with the circuitry.

Abstract: The general field of the invention is that of helicopter cockpit display systems. The system according to the invention comprises at least a first mobile display screen. Depending on the mission and in order to optimise the vision of the external landscape, the mobile screen or screens are moved so that they are either in the field of vision of the pilot, or out of his field of vision. The symbologies displayed are adapted according to the mission and to the position of the screen.

Abstract: Inertial sensor having a body with first and second cavities on opposite sides thereof, a sensing element in the first cavity, electronic circuitry in the second cavity, electrical conductors interconnecting the sensing element and the circuitry, and leads connected electrically to the circuitry and extending from the body for mounting the sensor and making connections with the circuitry.

Abstract: A light-emissive device comprising: a light-emissive region (12); a first electrode (10) located on a viewing side of the light-emissive region for injecting charge carriers of a first type: and a second-electrode (11) located on a non-viewing side of the light-emissive region for injecting charge carriers of a second type; and wherein there is a reflectivity-influencing structure (13) located on the non-viewing side of the light-emissive region and including a light absorbent layer comprising graphite and/or a fluoride or oxide of a low work function metal.

Abstract: A method of making phenol and alkylphenol ethoxylates non-estrogenic by inserting 1 mole of propylene oxide onto the phenolic group before proceeding with the addition of ethylene oxide or mixtures of ethylene and propylene oxide. The final phenolic products can be further reacted to form sulfates, sulfonates, phosphate esters, condensed alkylphenol alkoxylates and other derivatives of alkylphenol or phenol. Non-estrogenic phenol and alkylphenol alkoxylates and their derivatives have been found to be excellent salt tolerant, high temperature stable surfactants for oil recovery from subterranean reservoirs. These products are also useful in forming emulsions of heavy crude for transportation through pipelines.

Abstract: A method of making phenol and alkylphenol ethoxylates non-estrogenic by inserting 1 mole of propylene oxide onto the phenolic group before proceeding with the addition of ethylene oxide or mixtures of ethylene and propylene oxide. The final phenolic products can be further reacted to form sulfates, sulfonates, phosphate esters, condensed alkylphenol alkoxylates and other derivatives of alkylphenol or phenol. Non-estrogenic phenol and alkylphenol alkoxylates and their derivatives have been found to be excellent salt tolerant, high temperature stable surfactants for oil recovery from subterranean reservoirs. These products are also useful in forming emulsions of heavy crude for transportation through pipelines.

Abstract: Inertial sensor having a body with first and second cavities on opposite sides thereof, a sensing element in the first cavity, electronic circuitry in the second cavity, electrical conductors interconnecting the sensing element and the circuitry, and leads connected electrically to the circuitry and extending from the body for mounting the sensor and making connections with the circuitry.