Abstract: An aspect of some embodiments of the invention relate to a system for tissue characterization using an acousto-electric effect comprising: at least one ultrasonic waveform generator; at least one waveform generation controller; at least one set of electrodes; at least one electric signal amplification circuitry connectable to at least one of said at least one set of electrodes to generate an amplified signal; and at least one signal processing unit for analyzing said amplified signal and to generate information related to properties of multiple locations within a target tissue; wherein at least one of said multiple location has no direct contact with any electrode, and wherein said properties of said multiple locations are obtained within up to 10 milliseconds per location on average.

Abstract: The present invention relates to means and methods for modifying renal function in a subject, comprising selecting a patient requiring an increment in renal function; emitting a quantity of ultrasound radiation, enough to provide an increment in renal function, to at least one part of a kidney for a period of time from about 1 hours to about 30 days.

Abstract: A medical system includes an implantable sensor; and a medical device having a communication link with the sensor. The medical device further including a controller, wherein operating parameters for controlling sampling of a physiological characteristic or other parameter by the implantable sensor are calculated by the controller and communicated to the sensor dynamically.

Abstract: A method for providing Digital Subscriber Line (DSL) service to a group of subscribers over respective subscriber loops in the presence of another, existing digital network service provided on at least some of the subscriber loops. Lower, middle and upper frequency bands are assigned for transmission over the subscriber loops, such that the existing digital network service is provided on the lower band. DSL signals are transmitted downstream on the upper band and are received upstream on the middle band, generally without transmitting or receiving DSL signals on the lower band, over those subscriber loops on which the existing digital network service, is provided. Over those subscriber loops on which the existing digital network service is not provided, the DSL signals are transmitted downstream on the lower and upper bands and are received upstream on the lower and middle bands.

Abstract: Analog signals representing individual digital values (.+-.1, .+-.3) pass through a telephone line to a receiver. These signals may be first provided in a pseudo random sequence. A linear echo canceller and a first adder eliminate, to an extent, echo signals resulting from second analog signals transmitted on the same telephone line by the receiver. A non-linear echo canceller and a second adder further reduce the echo signals and specifically reduce non-linear components in the echo signals. Adjustable signal delays achieve optimal performance of the linear and non-linear echo cancellers. An equalizer containing four (4) different modules then compensates for signal distortions introduced by the telephone line and minimizes the effect of noise in the telephone line. The equalizer modules are a digital gain control element, a feed forward digital filter and two (2) feedback digital filters. A detector module produces in one of several different ways at the receiver an estimate of the digital data (.+-.1, .+-.

Abstract: Analog signals representing individual digital values (.+-.1, .+-.3) pass through a telephone line to a receiver. These signals may be first provided in a pseudo random sequence. A linear echo canceller and a first adder eliminate, to an extent, echo signals resulting from second analog signals transmitted on the same telephone line by the receiver. A non-linear echo canceller and a second adder further reduce the echo signals and specifically reduce non-linear components in the echo signals. Adjustable signal delays achieve optimal performance of the linear and non-linear echo cancellers. An equalizer containing four (4) different modules then compensates for signal distortions introduced by the telephone line and minimizes the effect of noise in the telephone line. The equalizer modules are a digital gain control element, a feed forward digital filter and two (2) feedback digital filters. A detector module produces in one of several different ways at the receiver an estimate of the digital data (.+-.1, .+-.