Abstract: A data generation system for a secure synthetic data generation is provided. The system includes at least one processor and a memory device in operable communication with the at least one processor. The memory device includes computer-executable instructions stored therein, which, when executed by the processor, cause the at least one processor to receive a plurality of historical data including one or more trends; train a data generator with the plurality of historical data and a plurality of noise data to generate data to simulate the one or more trends; receive one or more user input parameters; execute the data generator with the one or more user input parameters to generate a plurality of synthetic data, wherein the plurality of synthetic data includes the one or more trends; and output the plurality of synthetic data to a user.

Abstract: The present invention is directed to a hearing aid which includes a lateral ear canal assembly and a medial ear canal assembly. In embodiments of the invention the medial ear canal assembly may include smart circuitry adapted to control parameters and outputs of the medial ear canal assembly. In embodiments of the invention various methods and circuitry are described, wherein the methods and circuitry are adapted to improve the performance and efficiency of the hearing aid.

Abstract: The present invention is directed to a hearing aid which includes a lateral ear canal assembly and a medial ear canal assembly. In embodiments of the invention the medial ear canal assembly may include smart circuitry adapted to control parameters and outputs of the medial ear canal assembly. In embodiments of the invention various methods and circuitry are described, wherein the methods and circuitry are adapted to improve the performance and efficiency of the hearing aid.

Abstract: The present invention is directed to a hearing aid which includes a lateral ear canal assembly and a medial ear canal assembly. In embodiments of the invention the medial ear canal assembly may include smart circuitry adapted to control parameters and outputs of the medial ear canal assembly. In embodiments of the invention various methods and circuitry are described, wherein the methods and circuitry are adapted to improve the performance and efficiency of the hearing aid.

Abstract: The present invention is directed to a hearing aid which includes a lateral ear canal assembly and a medial ear canal assembly. In embodiments of the invention the medial ear canal assembly may include smart circuitry adapted to control parameters and outputs of the medial ear canal assembly. In embodiments of the invention various methods and circuitry are described, wherein the methods and circuitry are adapted to improve the performance and efficiency of the hearing aid.

Abstract: The present invention is directed to a contact hearing system utilizing an emitter adapted to emit light and a contact hearing device adapted to receive the emitted light and convert that light into sound by mechanical manipulation of a subjects ear drum. In the present invention the emitter may utilize multiple light sources and the multiple light sources may be passed through at least one diffuser in order to generate an emitted light having a broader angle of incidence with little or no loss in received power as measured by a photodetector on the contact hearing device when the contact hearing device is positioned on a subject's tympanic membrane and the emitter is positioned in the subject's ear canal.

Abstract: The present invention is directed to a hearing aid which includes a lateral ear canal assembly and a medial ear canal assembly. In embodiments of the invention the medial ear canal assembly may include smart circuitry adapted to control parameters and outputs of the medial ear canal assembly. In embodiments of the invention various methods and circuitry are described, wherein the methods and circuitry are adapted to improve the performance and efficiency of the hearing aid.

Abstract: The present invention is directed to a hearing aid which includes a lateral ear canal assembly and a medial ear canal assembly. In embodiments of the invention the medial ear canal assembly may include smart circuitry adapted to control parameters and outputs of the medial ear canal assembly. In embodiments of the invention various methods and circuitry are described, wherein the methods and circuitry are adapted to improve the performance and efficiency of the hearing aid.

Abstract: The present invention is directed to a hearing aid which includes a lateral ear canal assembly and a medial ear canal assembly. In embodiments of the invention the medial ear canal assembly may include smart circuitry adapted to control parameters and outputs of the medial ear canal assembly. In embodiments of the invention various methods and circuitry are described, wherein the methods and circuitry are adapted to improve the performance and efficiency of the hearing aid.

Abstract: The present invention is directed to a hearing aid which includes a lateral ear canal assembly and a medial ear canal assembly. In embodiments of the invention the medial ear canal assembly may include smart circuitry adapted to control parameters and outputs of the medial ear canal assembly. In embodiments of the invention various methods and circuitry are described, wherein the methods and circuitry are adapted to improve the performance and efficiency of the hearing aid.

Abstract: A sensors reading when exposed to different chemical compounds changes if an operating condition of the sensor such as temperature, pressure, electromagnetic field intensity, light or radiation level is modified and the amount of change is different for different compounds. This invention uses this phenomenon to identify and quantify the concentration of the compound.

Abstract: An implantable system acquires intracardiac impedance with an implantable lead system. In one implementation, the system generates frequency-rich, low energy, multi-phasic waveforms that provide a net-zero charge and a net-zero voltage. When applied to bodily tissues, current pulses or voltage pulses having the multi-phasic waveform provide increased specificity and sensitivity in probing tissue. The effects of the applied pulses are sensed as a corresponding waveform. The waveforms of the applied and sensed pulses can be integrated to obtain corresponding area values that represent the current and voltage across a spectrum of frequencies. These areas can be compared to obtain a reliable impedance value for the tissue. Frequency response, phase delay, and response to modulated pulse width can also be measured to determine a relative capacitance of the tissue, indicative of infarcted tissue, blood to tissue ratio, degree of edema, and other physiological parameters.

Abstract: An implantable device monitors and treats heart failure, pulmonary edema, and hemodynamic conditions and in some cases applies therapy. In one implementation, the implantable device applies a high-frequency multi-phasic pulse waveform over multiple-vectors through tissue. The waveform has a duration less than the charging time constant of electrode-electrolyte interfaces in vivo to reduce intrusiveness while increasing sensitivity and specificity for trending parameters. The waveform can be multiplexed over multiple vectors and the results cross-correlated or subjected to probabilistic analysis or thresholding schemata to stage heart failure or pulmonary edema. In one implementation, a fractionation morphology of a sensed impedance waveform is used to trend intracardiac pressure to stage heart failure and to regulate cardiac resynchronization therapy. The waveform also provides unintrusive electrode integrity checks and 3-D impedancegrams.

Abstract: Techniques are provided for controlling therapy provided by the implantable cardiac stimulation device based on cardiogenic impedance. A cardiogenic impedance signal (or intracardiac impedance signal) is an impedance signal representative of the beating of the heart of the patient in which the device is implanted. The cardiogenic impedance signal is sensed along a sensing vector passing through at least a portion of the heart so that the sensed impedance is affected by the mechanical beating of the heart along that sensing vector. Pacing therapy is automatically and adaptively adjusted based on the cardiogenic impedance signal. For example, pacing timing parameters such as the atrioventricular delay and the inter-ventricular delay may be adjusted. Preferably, the adjustments are adaptive, i.e. the adjustments are performed in a closed-loop so as to adapt the adjustments to changes in the cardiogenic impedance signal so as to optimize therapy.

Abstract: An implantable device monitors and treats heart failure, pulmonary edema, and hemodynamic conditions and in some cases applies therapy. In one implementation, the implantable device applies a high-frequency multi-phasic pulse waveform over multiple-vectors through tissue. The waveform has a duration less than the charging time constant of electrode-electrolyte interfaces in vivo to reduce intrusiveness while increasing sensitivity and specificity for trending parameters. The waveform can be multiplexed over multiple vectors and the results cross-correlated or subjected to probabilistic analysis or thresholding schemata to stage heart failure or pulmonary edema. In one implementation, a fractionation morphology of a sensed impedance waveform is used to trend intracardiac pressure to stage heart failure and to regulate cardiac resynchronization therapy. The waveform also provides unintrusive electrode integrity checks and 3-D impedancegrams.

Abstract: A circuit is disclosed that comprises a controller and an analog to digital converter (ADC) coupled to controller. The speed and/or the resolution of the ADC is configurable to provide optimum performance during the operation of the ADC. In an embodiment a wireless receiver with an adaptively configurable ADC for is provided. The speed and resolution the ADC is configurable depending on the operational mode of the receiver. Accordingly, through the use of an adaptively configurable ADC, power consumption and speed is optimized for each operational mode.

Abstract: An implantable system acquires intracardiac impedance with an implantable lead system. In one implementation, the system generates frequency-rich, low energy, multi-phasic waveforms that provide a net-zero charge and a net-zero voltage. When applied to bodily tissues, current pulses or voltage pulses having the multi-phasic waveform provide increased specificity and sensitivity in probing tissue. The effects of the applied pulses are sensed as a corresponding waveform. The waveforms of the applied and sensed pulses can be integrated to obtain corresponding area values that represent the current and voltage across a spectrum of frequencies. These areas can be compared to obtain a reliable impedance value for the tissue. Frequency response, phase delay, and response to modulated pulse width can also be measured to determine a relative capacitance of the tissue, indicative of infarcted tissue, blood to tissue ratio, degree of edema, and other physiological parameters.

Abstract: An implantable system acquires intracardiac impedance with an implantable lead system. In one implementation, the system generates frequency-rich, low energy, multi-phasic waveforms that provide a net-zero charge and a net-zero voltage. When applied to bodily tissues, current pulses or voltage pulses having the multi-phasic waveform provide increased specificity and sensitivity in probing tissue. The effects of the applied pulses are sensed as a corresponding waveform. The waveforms of the applied and sensed pulses can be integrated to obtain corresponding area values that represent the current and voltage across a spectrum of frequencies. These areas can be compared to obtain a reliable impedance value for the tissue. Frequency response, phase delay, and response to modulated pulse width can also be measured to determine a relative capacitance of the tissue, indicative of infarcted tissue, blood to tissue ratio, degree of edema, and other physiological parameters.

Abstract: An implantable system acquires intracardiac impedance with an implantable lead system. In one implementation, the system generates frequency-rich, low energy, multi-phasic waveforms that provide a net-zero charge and a net-zero voltage. When applied to bodily tissues, current pulses or voltage pulses having the multi-phasic waveform provide increased specificity and sensitivity in probing tissue. The effects of the applied pulses are sensed as a corresponding waveform. The waveforms of the applied and sensed pulses can be integrated to obtain corresponding area values that represent the current and voltage across a spectrum of frequencies. These areas can be compared to obtain a reliable impedance value for the tissue. Frequency response, phase delay, and response to modulated pulse width can also be measured to determine a relative capacitance of the tissue, indicative of infarcted tissue, blood to tissue ratio, degree of edema, and other physiological parameters.

Abstract: In one embodiment an implantable cardiac device is provided that includes an implantable cardiac stimulation device with an implantable satellite device coupled to it. The implantable satellite device has a charge storage device. The implantable stimulation device having a refresh generator configured to generate a charge and voltage balanced multi-phasic refresh signal with a duration less than a capacitive time constant of an electrode-electrolyte interface of the implantable cardiac device and transmit the charge and voltage balanced multi-phasic refresh signal to the implantable satellite device for charging the charge storage device. In various embodiments, the charge and voltage balanced multi-phasic refresh signal having alternating phase signs and null durations between the alternating phases. In some embodiments, the refresh generator is configured to modulate the multi-phasic waveform refresh signal.