Abstract: A receiver signal processing system and method are shown which are representative of a plurality of signal channels for processing a plurality of electrical signals produced, for example, by an array of transducer elements. The system includes amplifier means which is supplied with an a-c input signal such as the output from an acoustic transducer element included in an array thereof. The output of the amplifier means is connected to a signal level detector, and the detector output is coupled to signal storage means through receiver signal gating means. The signal storage means simply may comprise a capacitor which functions as an analog peak signal detector and storage means such that the peak signal from the signal level detector is stored therein when a receiver gating pulse is supplied to the receiver gating means to enable the same.

Abstract: Error compensating method and means are shown for use in multichannel systems for compensation of errors in the operating characteristics of the individual information handling channels. Offset, gain, linearity and the like, channel transfer function errors, may be compensated for in accordance with the invention. Error compensating signals for the individual information handling channels are stored in error compensating signal storage means and are combined with the channel output signals to compensate for errors therein. A test signal is supplied to the channel inputs, and the compensated channel outputs resultant thereof are compared with a standard related to said test signal. Variations from the standard are used to update the error compensating signals contained in storage.

Abstract: A lens converter ultrasonic camera method and system are shown for producing a visible representation in real time and true perspective of inhomogeneities in an opaque subject or specimen and especially suitable for imaging organs of living organisms. An ultrasonic wave generating transducer means is coupled to the specimen for insonification thereof, and focused perspective images using either transmitted or reflected ultrasonic waves are produced and directed upon an array of acoustic to electrical transducer elements. Scanning means are employed to expose the transducer elements to the entire acoustic image to generate electrical signals representative of the acoustic image.