- Email: [email protected]
4537199 Ultrasonic diagnostic apparatus
Ultrasound in Med. & Biol. Vol. 12, No. 5, pp. 445-448, 0301-5629/86 $3.00 + .OO Printed in the U.S.A. (c) 1986 Pergamon Press Ltd. All rights reserved.
1986
NEW PATENTS This Section contains abstracts and, where appropriate, illustrations of recently issued United States patents and published patent applications filed from over 30 countries under the Patent Cooperation Treaty. This information was obtained from recent additions to the Pergamon PATSEARCH” online database in accordance with interest profiles developed by the Editors. Further information about Pergamon PATSEARCH” can be obtained from Pergamon InfoLine Inc., 1340 Old Chain Bridge Road, McLean, Virginia 22101 U.S.A. Copies of complete patents announced in this Section are available from Pergamon InfoLine Inc. for $8 per copy. Payment with order is required. Orders outside North America add $2 for air postage. Order by patent number for Pergamon InfoLine only.
4537199 ULTRASONIC DIAGNOSTIC APPARATUS Yuuichi Muranaka, to Tokyo Shibaura
Ootawara, Japan assigned Denki Kabushiki Kaisha
In an ultrasonic diagnostic apparatus, the center frequency of the spectrum of the received echo signal is decreased, depending upon the penetration depth of the patient. This phenomenon is noticeable when the frequency of the excited ultrasonic waves is selected to a higher range. The ultrasonic diagnostic apparatus employs an STC circuit, a gain of which is varied in accordance with the penetration depth of the patient.
METHOD AND APPARATUS FOR REMOTE TISSUE IDENTIFICATION BY STATISTICAL MODELING AND HYPOTHESIS TESTING OF ECHO ULTRASOUND SIGNALS Farhad Towtiq assigned Philips Corporation
4542745 ULTRASONIC EMULSION FLUIDS
4542744
Casper Barnes, North American
trasound energy from living tissue as an autoregressive or autoregressive moving average random process. Autoregressive or autoregressive moving average models of candidate tissue types are generated from pulse-echo data that is known to come from that particular tissue type. Kalman prediction error filters are used for each candidate tissue type to generate estimates of the probability that an unknown pulse echo signal belongs to the class generated by that tissue type. Unknown pulse-echo signals are filtered in a specific Kalman filter to test the hypothesis that the unknown signal belongs to the class associated with that particular Kalman filter.
Clyde Oakley, Joe F Guess, Cheston W Robbins, Robert M Kelly, Dean Skaar, Stephen D Walker assigned to Technicare Corporation
to
Apparatus and methods for remote identification of tissue types model the scattering of ul445
1986
NEW PATENTS This Section contains abstracts and, where appropriate, illustrations of recently issued United States patents and published patent applications filed from over 30 countries under the Patent Cooperation Treaty. This information was obtained from recent additions to the Pergamon PATSEARCH” online database in accordance with interest profiles developed by the Editors. Further information about Pergamon PATSEARCH” can be obtained from Pergamon InfoLine Inc., 1340 Old Chain Bridge Road, McLean, Virginia 22101 U.S.A. Copies of complete patents announced in this Section are available from Pergamon InfoLine Inc. for $8 per copy. Payment with order is required. Orders outside North America add $2 for air postage. Order by patent number for Pergamon InfoLine only.
4537199 ULTRASONIC DIAGNOSTIC APPARATUS Yuuichi Muranaka, to Tokyo Shibaura
Ootawara, Japan assigned Denki Kabushiki Kaisha
In an ultrasonic diagnostic apparatus, the center frequency of the spectrum of the received echo signal is decreased, depending upon the penetration depth of the patient. This phenomenon is noticeable when the frequency of the excited ultrasonic waves is selected to a higher range. The ultrasonic diagnostic apparatus employs an STC circuit, a gain of which is varied in accordance with the penetration depth of the patient.
METHOD AND APPARATUS FOR REMOTE TISSUE IDENTIFICATION BY STATISTICAL MODELING AND HYPOTHESIS TESTING OF ECHO ULTRASOUND SIGNALS Farhad Towtiq assigned Philips Corporation
4542745 ULTRASONIC EMULSION FLUIDS
4542744
Casper Barnes, North American
trasound energy from living tissue as an autoregressive or autoregressive moving average random process. Autoregressive or autoregressive moving average models of candidate tissue types are generated from pulse-echo data that is known to come from that particular tissue type. Kalman prediction error filters are used for each candidate tissue type to generate estimates of the probability that an unknown pulse echo signal belongs to the class generated by that tissue type. Unknown pulse-echo signals are filtered in a specific Kalman filter to test the hypothesis that the unknown signal belongs to the class associated with that particular Kalman filter.
Clyde Oakley, Joe F Guess, Cheston W Robbins, Robert M Kelly, Dean Skaar, Stephen D Walker assigned to Technicare Corporation
to
Apparatus and methods for remote identification of tissue types model the scattering of ul445