Abstract: Methods and systems to provide breathing air to underwater divers in response to the divers' respiration at pressures less than 25 psi above atmospheric pressure during inspiration while delivering no or minimal air during exhalation, by controlling the actions of a pump during the time course of breathing. Methods and systems that sense a diver's need for breathing air, determine inhalation demand or exhalation state, and control the operation of a pump which delivers breathing gas to the diver via a tube. An integrated system for the same which incorporates at least an energy source, pump, air tube, breathing aperture, sensor, and logic processor is disclosed.

Abstract: A system for monitoring or treating RLS or PLMD can include or use a leg-wearable electrostimulation device for acquiring auxiliary data from a subject at a first leg location at which the device is worn, the first leg-wearable electrostimulation device including or using a first neurostimulation delivery device, an impedance sensor configured for determining an impedance via the first and second skin electrodes, and an auxiliary sensor configured for detecting the auxiliary data of the first leg location at which the device is worn.

Abstract: Methods and systems to provide breathing air to underwater divers in response to the divers' respiration at pressures less than 25 psi above atmospheric pressure during inspiration while delivering no or minimal air during exhalation, by controlling the actions of a pump during the time course of breathing. Methods and systems that sense a diver's need for breathing air, determine inhalation demand or exhalation state, and control the operation of a pump which delivers breathing gas to the diver via a tube. An integrated system for the same which incorporates at least an energy source (26), pump (28), air tube (30), breathing aperture (10), sensor (20), and logic processor (24) is disclosed.

Abstract: A transcutaneous neurostimulation therapy system can include an electrostimulation electronics unit, including first and second neurostimulation output which can be respectively coupled to first and second neurostimulation skin electrodes, and the electrostimulation electronics unit can include or be coupled to a rechargeable battery. The transcutaneous neurostimulation therapy system can also include battery charging circuitry configured for being coupled via the first and second neurostimulation output terminals to the electrostimulation electronics unit for charging the battery of the electrostimulation electronics unit through the first and second neurostimulation skin electrodes.

Abstract: A system for monitoring or treating RLS or PLMD can include or use a leg-wearable electrostimulation device for acquiring auxiliary data from a subject at a first leg location at which the device is worn, the first leg-wearable electrostimulation device including or using a first neurostimulation delivery device, an impedance sensor configured for determining an impedance via the first and second skin electrodes, and an auxiliary sensor configured for detecting the auxiliary data of the first leg location at which the device is worn.

Abstract: A transcutaneous neurostimulation therapy system can include an electrostimulation electronics unit, including first and second neurostimulation output which can be respectively coupled to first and second neurostimulation skin electrodes, and the electrostimulation electronics unit can include or be coupled to a rechargeable battery. The transcutaneous neurostimulation therapy system can also include battery charging circuitry configured for being coupled via the first and second neurostimulation output terminals to the electrostimulation electronics unit for charging the battery of the electrostimulation electronics unit through the first and second neurostimulation skin electrodes.

Abstract: A motor and pumping system which provides for high volume, low pressure, low cost, and ease of assembly as a breathing air supply such as for a submerged diver. The integration of the necessary elements gives rise to a unique ability to eliminate costly and complex motor bearings and simplify the motor design by reducing number of magnetic poles and electrical control elements which would traditionally be required to control the multiple poles of an electromechanical machine.

Abstract: Methods and systems to provide breathing air to underwater divers in response to the divers' respiration at pressures less than 25 psi above atmospheric pressure during inspiration while delivering no or minimal air during exhalation, by controlling the actions of a pump during the time course of breathing. Methods and systems that sense a diver's need for breathing air, determine inhalation demand or exhalation state, and control the operation of a pump which delivers breathing gas to the diver via a tube. An integrated system for the same which incorporates at least an energy source (26), pump (28), air tube (30), breathing aperture (10), sensor (20), and logic processor (24) is disclosed.

Abstract: Methods and systems to provide breathing air to underwater divers in response to the divers' respiration at pressures less than 25 psi above atmospheric pressure during inspiration while delivering no or minimal air during exhalation, by controlling the actions of a pump during the time course of breathing. Methods and systems that sense a diver's need for breathing air, determine inhalation demand or exhalation state, and control the operation of a pump which delivers breathing gas to the diver via a tube. An integrated system for the same which incorporates at least an energy source (26), pump (28), air tube (30), breathing aperture (10), sensor (20), and logic processor (24) is disclosed.

Abstract: A fuel metering system for an internal combustion engine having a fuel injection timing unit to indicate a timepoint during one or more engine strokes, a fuel metering element have a predetermined full stroke volume for metering fuel into an air-fuel mixing location during one or more of the engine strokes, and a fuel metering element controller to control the delivery of fuel by causing the fuel metering element to deliver one of a full stroke volume and a fraction of a full stroke volume to achieve a desired AFR. In some embodiments, power generator circuitry is provided to harvest power from the ICE to power at least one of the fuel injection timing unit, the fuel metering element, and the fuel metering controller.

Abstract: Methods for controlling an air-to-fuel (AFR) ratio in the metering of fuel to an operating internal combustion engine (ICE) are provided using software-implemented logic controls to enable the determination of one or more of a maximum-power AFR fiducial and a maximum-efficiency AFR fiducial. Control of the fuel delivered to achieve any desired AFT using the fiducial values and/or a known or derived power-AFR curve for the ICE, and pressures of 5 psi or less, without chemical or temperature sensing of the exhaust gas of the ICE.

Abstract: Methods for controlling an air-to-fuel (AFR) ratio in the metering of fuel to an operating internal combustion engine (ICE) are provided using software-implemented logic controls to enable the determination of one or more of a maximum-power AFR fiducial and a maximum-efficiency AFR fiducial. Control of the fuel delivered to achieve any desired AFT using the fiducial values and/or a known or derived power-AFR curve for the ICE, and pressures of 5 psi or less, without chemical or temperature sensing of the exhaust gas of the ICE.

Abstract: Methods and systems to provide breathing air to underwater divers in response to the divers' respiration at pressures less than 25 psi above atmospheric pressure during inspiration while delivering no or minimal air during exhalation, by controlling the actions of a pump during the time course of breathing. Methods and systems that sense a diver's need for breathing air, determine inhalation demand or exhalation state, and control the operation of a pump which delivers breathing gas to the diver via a tube. An integrated system for the same which incorporates at least an energy source (26), pump (28), air tube (30), breathing aperture (10), sensor (20), and logic processor (24) is disclosed.

Abstract: An implantable electrode assembly for gripping nerves or other bodily structures is disclosed. The assembly comprises first and second spines containing first and second leads with at least one electrode cross rail joining the spines and at least one electrode providing a route for electrical conduction between the first and second lead. Mating structures on the spines allow the spines to be joined for securely attaching the assembly around the nerve.