Abstract: A wireless asymmetrical control system for a personal communication device comprising a first receiver associated with the personal communications device, and a transmitter having an in-band (IE audible) signal device, the IE audible device being configured to generate and transmit a time modulated control signals, the time modulated control signals being generated by generating a first plurality of multi-frequency signals comprising a plurality of first time modulated frequency combinations, and applying the plurality of first time modulated frequency combinations to a first plurality of control signals in a first frequency domain, the receiver being configured to decode the time modulated control signals and generate and transmit response signals to the IE audible signal device in response to the time modulated control signals, each of the response signals comprising an ultra-wide band (UWB) electro-magnetic pulse.

Abstract: An injector system for delivery of a pharmacological agent to biological tissue having a plurality of needles arranged in an array, a plurality of reservoirs configured to receive a pharmacological composition therein, the reservoirs being in fluid communication with a respective one of the plurality of needles, a pneumatic pressure source, a pneumatic drive system that is configured to induce a first discharge of the pharmacological composition out of the reservoirs and needles in a plurality of delivery modes, agent delivery volume control means for controlling volume of the pharmacological composition discharged from the needles, and a control system having actuation control means for controlling said pneumatic drive system. The control system is programmed to control the delivery modes.

Abstract: A hearing aid system comprising first and second ear units or hearing aids, and an external audio signal receiver, the first and second ear units including an audio sensor and transceiver, the audio sensor being configured to detect audio signals emanating from the environment, the transceiver being configured to transmit directionality signals representing amplitude and phase of detected audio signals to said acoustic signal receiver, the audio signal receiver including processing means for processing the audio and directionality signals and generating reconstructed acoustic signals that include direction parameters representing a direction of origin of at least one audio signal, the audio signal receiver further including wireless signal transmission means for transmitting the reconstructed acoustic signals to the ear units.

Abstract: A catheter and catheter system can use energy tailored for remodeling and/or removal of target material along a body lumen, often of atherosclerotic material of a blood vessel of a patient. An elongate flexible catheter body with a radially expandable structure may have a plurality of electrodes or other electrosurgical energy delivery surfaces to radially engage atherosclerotic material when the structure expands. An atherosclerotic material detector system may measure and/or characterize the atherosclerotic material and its location, optionally using impedance monitoring.

Abstract: Apparatus, systems, and methods are provided for the generation and control of energy delivery in a dosage to elicit a therapeutic response in diseased tissue. A balloon catheter can have electrodes attached to a power generator and controller such that the balloon and electrodes contact tissue during energy treatment. Energy selectively may be applied to tissue based on measured impedance to achieve gentle heating. Calibration of the apparatus and identification of attached accessories by computing the circuit impedance prior to energy dosage facilitate regulation of power delivery about a set point. Energy delivery can be controlled to achieve substantially uniform bulk tissue temperature distribution. Energy delivery may beneficially affect nerve activity.

Abstract: A catheter and catheter system can use energy tailored for remodeling and/or removal of target material along a body lumen, often of atherosclerotic material of a blood vessel of a patient. An elongate flexible catheter body with a radially expandable structure may have a plurality of electrodes or other electrosurgical energy delivery surfaces to radially engage atherosclerotic material when the structure expands. An atherosclerotic material detector system may measure and/or characterize the atherosclerotic material and its location, optionally using impedance monitoring.

Abstract: An audiometric apparatus comprising stimulus generating means for transmitting at least one true random stimulus sequence to a subject's inner ear, and sampling means for detecting the response signal returned from the subject's inner ear in response to the stimulus sequence, the response signal having at least a first waveform, the sampling means including waveform reconstruction means for reconstructing the first waveform, the reconstruction means including means for applying a plurality of true random frequencies to the response signal.

Abstract: A system and method for verifying an individual's identity that collects fingerprint information and verifies it using blood oxygen saturation and/or ECG information. The results of the identification can be used to control access and may be output to a security monitor.

Abstract: An exclusively digital timing engine that measures extremely short time intervals for use in time of flight systems such as laser range finding systems. This exclusively digital timing engine minimizes the use of high speed, high cost components by employing a novel time multiplexing scheme to execute each of the primary time of flight functions: frequency synthesis, range gating, and time of flight interval measurement. In addition, the timing engine incorporates a random time delay scheme which enhances the resolution of the time interval measurement.

Abstract: A tester for multiple types of radios has a first group of generic test elements common to all types of radios to be tested and second groups of test elements specific to each one of the multiple types of radios. Each of the second groups of test elements is mounted within a pluggable module for insertion into the tester where it couples to a common bus accessed by all of the other test elements and by the controlling computer. Each pluggable module contains a specific identifier which, when accessed by the controlling computer initiates a stored program which causes the computer, via the bus, to couple the various test elements into a configuration required to test the radio type associated with that identifier. The system is very compact and conveniently uses a lap top computer as the controlling element.

Abstract: A swept microwave power measurement system and method capable of performing accurate high performance absolute power measurements on the fly for integration with a scalar analyzer. The system interpolates a calibration factor of the detector at a given frequency point in the sweep between previously established calibration factors at various predetermined frequencies which are stored in memory and then determines an "apparent" power level of the input signal at a standard frequency. The interpolated calibration factor is applied to the "apparent" power level to determine the "absolute" power level at the given frequency point in the sweep.

Abstract: True RMS power demodulation system and method for a modulated RF signal uses a DC coupled linear amplifier and linearizes the diode detector prior to demodulation. The demodulated signal is proportional to the difference of RF powers such that the network measurement is unaffected by the modulation depth at the power sensor which can be degraded by RF feedthrough or the presence of an interfering signal or noise.

Abstract: Power from an alternating signal having a frequency variable in a wide and relatively high range such as approximately 10 megahertz to 40 gigahertz is indicated by a detector. To calibrate the detector, an alternating signal is introduced from a source to a bridge including a regulating member such as a thermistor. The bridge also receives a direct voltage. The thermistor is maintained at a particular impedance such as 400 ohms, regardless of the power provided by the alternating signal, by varying the magnitude of the direct voltage. The alternating signal, which is regulated in accordance with the dc voltage, is also introduced to the detector. The detector output is introduced to a data processing unit which processes the detector output to indicate the power from the alternating signal. The output from the data processing unit is converted to an analog signal which is combined with the signal from the bridge to produce a resultant signal.