Abstract: A lightweight sweet spot trainer includes a sleeve that is slipped over the barrel end of any bat. The sleeve covers the barrel over the primary contact area of the bat. The sleeve holds a force sensor placed inside it such that, when slid over the bat, the force sensor is coincident with the sweet spot of the bat. When a ball comes in contact with the sweet spot, the force sensor directly beneath it is triggered such that instantaneous feedback is given to the athlete thereby making him/her aware of accurate sweet spot contact. Moreover, an array of cylindrical contact/force sensors can be positioned such that the user gets feedback that would depend on how far from the sweet spot the user strikes/contacts the ball. The user may be notified by audio, visual, or sensory cues.

Abstract: A lightweight sweetspot trainer includes a sleeve that is slipped over the barrel end of any bat. The sleeve covers the barrel over the primary contact area of the bat. The sleeve holds a force sensor placed inside it such that, when slid over the bat, the force sensor is coincident with the sweetspot of the bat. When a ball comes in contact with the sweetspot, the force sensor directly beneath it is triggered such that instantaneous feedback is given to the athlete thereby making him/her aware of accurate sweetspot contact. Moreover, an array of cylindrical contact/force sensors can be positioned such that the user gets feedback that would depend on how far from the sweetspot the user strikes/contacts the ball. The user may be notified by audio, visual, or sensory cues.

Abstract: A diagnostic test device comprising at least one membrane disposed in any of one, two, and three dimensions; at least one test sample fluid input port that receives and transfers at least one test sample fluid and onto the at least one membrane; at least one contiguous fluid flow manifold within the at least one membrane to multiplex or distribute the at least one test sample fluid; at least one contiguous fluid flow channel that operatively connects the at least one membrane to the at least one contiguous fluid flow manifold; at least one analyte assay test zone disposed within the at least one contiguous fluid flow channel; and at least one chemical capturing reagent disposed within the at least one analyte assay test zone, wherein multiple analyte assay test results are simultaneously obtained and in parallel in the diagnostic test device.

Abstract: A diagnostic test device comprising at least one membrane disposed in any of one, two, and three dimensions; at least one test sample fluid input port that receives and transfers at least one test sample fluid and onto the at least one membrane; at least one contiguous fluid flow manifold within the at least one membrane to multiplex or distribute the at least one test sample fluid; at least one contiguous fluid flow channel that operatively connects the at least one membrane to the at least one contiguous fluid flow manifold; at least one analyte assay test zone disposed within the at least one contiguous fluid flow channel; and at least one chemical capturing reagent disposed within the at least one analyte assay test zone, wherein multiple analyte assay test results are simultaneously obtained and in parallel in the diagnostic test device.

Abstract: A barcode includes sensors or actuators in selected modules whereby its code changes to indicate exposure to, or change in, one or more properties of interest. Prior to exposure, the barcode displays a first code. After exposure, the barcode displays a different code. The displayed code conveys qualitative or quantitative information about one or more chosen properties of interest. This dynamic barcode can be configured as a standalone device or as a label that can be affixed to an object. Data coded by the dynamic barcode is machine-readable or visible to the naked eye, and can be autonomously conveyed to a database to facilitate analysis or prognostics.

Abstract: A system and device for harvesting various frequencies and polarizations of ambient radio frequency (RF) electromagnetic (EM) energy for making a passive sensor (tag) into an autonomous passive sensor (tag) adapted to collect and store data with time-stamping and some primitive computation when necessary even when an interrogating radio frequency identification (RFID) reader is not present (not transmitting). A specific source of ambient RF EM energy may include wireless fidelity (WiFi) and/or cellular telephone base stations. The system and device may also allow for the recharging of energy storage units in active and battery assisted passive (BAP) devices. The system could be a “smart building” that uses passive sensors with RF EM energy harvesting capability to sense environmental variables, security breaches, as well as information from “smart appliances” that can be used for a variety of controls and can be accessed locally or remotely over the Internet or cellular networks.

Abstract: A cardiac rhythm management (CRM) device detects transthoracic impedance, extracts ventilation or other information, and adjusts a delivery rate of the CRM therapy accordingly. A four-phase sequence of alternating direction current pulse stimuli is periodically delivered to a patient's thorax. A transthoracic impedance signal is extracted using a weighted demodulation. Signal processing extracts ventilation information and removes cardiac stroke information using an adaptive lowpass filter. The adaptive filter cutoff frequency is based on the patient's heart rate; a higher cutoff frequency is provided for higher heart rates. Peak/valley detection indicates tidal volume, which is integrated to extract minute ventilation (MV). Short and long term averages are formed and compared to establish a MV indicated rate. Rate adjustment ignores MV information when a noise-measurement exceeds a threshold.

Abstract: A cardiac rhythm management (CRM) device detects transthoracic impedance, extracts ventilation or other information, and adjusts a delivery rate of the CRM therapy accordingly. A four-phase sequence of alternating direction current pulse stimuli is periodically delivered to a patient's thorax. A transthoracic impedance signal is extracted using a weighted demodulation. Signal processing extracts ventilation information and removes cardiac stroke information using an adaptive lowpass filter. The adaptive filter cutoff frequency is based on the patient's heart rate; a higher cutoff frequency is provided for higher heart rates. Peak/valley detection indicates tidal volume, which is integrated to extract minute ventilation (MV). Short and long term averages are formed and compared to establish a MV indicated rate. Rate adjustment ignores MV information when a noise-measurement exceeds a threshold.

Abstract: A cardiac rhythm management (CRM) device detects transthoracic impedance, extracts ventilation or other information, and adjusts a delivery rate of the CRM therapy accordingly. A four-phase sequence of alternating direction current pulse stimuli is periodically delivered to a patient's thorax. A transthoracic impedance signal is extracted using a weighted demodulation. Signal processing extracts ventilation information and removes cardiac stroke information using an adaptive lowpass filter. The adaptive filter cutoff frequency is based on the patient's heart rate; a higher cutoff frequency is provided for higher heart rates. Peak/valley detection indicates tidal volume, which is integrated to extract minute ventilation (MV). Short and long term averages are formed and compared to establish a MV indicated rate. Rate adjustment ignores MV information when a noise-measurement exceeds a threshold.

Abstract: A cardiac rhythm management (CRM) device detects transthoracic impedance, extracts ventilation or other information, and adjusts a delivery rate of the CRM therapy accordingly. A four-phase sequence of alternating direction current pulse stimuli is periodically delivered to a patient's thorax. A transthoracic impedance signal is extracted using a weighted demodulation. Signal processing extracts ventilation information and removes cardiac stroke information using an adaptive lowpass filter. The adaptive filter cutoff frequency is based on the patient's heart rate; a higher cutoff frequency is provided for higher heart rates. Peak/valley detection indicates tidal volume, which is integrated to extract minute ventilation (MV). Short and long term averages are formed and compared to establish a MV indicated rate. Rate adjustment ignores MV information when a noise-measurement exceeds a threshold.