Abstract: An embodiment of the invention resides in the apparatus and technique of dynamically measuring and storing a biological condition or disposition during the time that one set of conditions are imposed on a joint or body area and applying closed-loop therapeutic action so as to re-achieve that same biological condition or disposition during a subsequent time that another different set of conditions are imposed. Furthermore, dynamic potentials surrounding said joint or body area may be created, bolstered, and/or modulated through aspects of stimulation applied which are independent of those aspects utilized to counteract force incident on the joint or body area. Other embodiments are described herein.

Abstract: A portable device, with method, advantageously applies dynamic stimulation of enclosed muscle tissue to stabilize a prosthetic socket on a residual limb. Dynamic stimulation is in response to physical conditions such as prosthesis motion, position and/or internal pressures. Tissue volume contained within the socket may be stabilized by varying average stimulation levels in response to internal socket pressure.

Abstract: An embodiment of the invention resides in the apparatus and technique of dynamically measuring and storing a biological condition or disposition during the time that one set of conditions are imposed on a joint or body area and applying closed-loop therapeutic action so as to re-achieve that same biological condition or disposition during a subsequent time that another different set of conditions are imposed. Furthermore, dynamic potentials surrounding said joint or body area may be created, bolstered, and/or modulated through aspects of stimulation applied which are independent of those aspects utilized to counteract force incident on the joint or body area. Other embodiments are described herein.

Abstract: Apparatus and methods are disclosed for detecting and progressively attenuating specific frequencies prevalent in an audio signal. In contrast to conventional wide-band enhancement techniques over long time frames, narrow bandwidths and short attenuation times employed are commensurate with resonances and timing typical of speech. Apparent dynamic range is therefore increased through attenuation of longer-duration elements with declining informational contribution.

Abstract: A portable device, with method, advantageously applies dynamic stimulation of enclosed muscle tissue to stabilize a prosthetic socket on a residual limb. Dynamic stimulation is in response to physical conditions such as prosthesis motion, position and/or internal pressures. Tissue volume contained within the socket may be stabilized by varying average stimulation levels in response to internal socket pressure.

Abstract: Prevalence detection is advantageously applied to the result of specific spectral discrimination to adaptively determine prevalent frequencies existing within an audio signal containing speech. Prevalent frequencies in this audio signal so isolated are attenuated in a highly selective manner, thus reducing the masking potential of pervasive resonances and obfuscative energy within the speech itself over low energy language-imparting speech elements.

Abstract: A portable device, with requisite method, is used to support a compromised joint, such as by arthritis, through dynamic stimulation of the surrounding musculature. Direct feedback, preferably from the patient wearing the device, is used during problematic joint operation to qualify dynamic measured or calculated spacial or physical conditions of the compromised joint for use as state definitions. Approximation of these state definitions by subsequent spacial or physical conditions of the compromised joint evokes variable stimulation of the surrounding musculature. State definitions so qualified, as well as control of stimulation output, may include magnitude and/or vector of joint force, facilitating predictable benefit from the device beyond that available through positional control.

Abstract: The primary of a transformer is driven at low voltages to provide high-voltage dynamic drive from the secondary to a load. A high-current source is placed in series with both the transformer secondary and load. At least secondary inductance of the transformer, hence impedance, is controlled through core saturation to transition secondary output to the load between high-voltage dynamic drive inductively coupled from the primary, and high-current drive serially connected through the secondary. Switching between high voltage and high current output is accomplished through the transformer; no additional switching devices need exist in the high-voltage path. Broad voltage and current capabilities of the configuration inexpensively improve transient drive of highly reactive loads.

Abstract: A method and system for sharing a hardware resource in a multistate system is provided. The method includes the steps of monitoring changes in state in the multistate system using a pickup device, accessing a memory containing control parameters required by the hardware resource in response to a state signal from the pickup device, applying a control signal that is related to the accessed control parameters to the hardware resource, and connecting the hardware resource to a selected one of several output devices.