Ultrasonic diagnostic apparatus and method for processing ultrasonic signal
作者： Yuichi Miwa , Hirotaka Baba , Ryuichi Shinomura , Naoto Fujita , Shin-ichiro Umemura
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摘要: An ultrasonic diagnostic apparatus, which can acquire images with different frequencies, comprises a probe made up of plurality elements transmit waves and receive reflected waves, digital conversion part digitizes received signals, first mixing multiplies the output reference signal, filter extracts signal having predetermined center frequency out part, delay delays an adding adds outputs second detection detects converts into image display device displays part. This configuration dispenses changes in characteristics
google.com.na 参考文章(9)
Mckee D Poland, Methods for the use of contrast agents in ultrasonic imaging ,(1999)
Hiroshi Masuzawa, Ultrasound signal processor Journal of the Acoustical Society of America. ,vol. 102, pp. 687- ,(1996) , 10.1121/1.419964
Samuel H. Maslak, Acoustic imaging apparatus ,(1977)
Shengtz Lin, Demodulating wide-band ultrasound signals ,(2000)
Matthew O'donnell, Steven George Karr, Sharbel Emil Noujaim, Thomas Lee Vogelsong, William Ernest Engeler, Method and apparatus for high speed digital phased array coherent imaging system ,(1988)
Kenneth N. Bates, Acoustic wave imaging apparatus and method ,(1995)
Donald Masters, Slewing bandpass filter for selective passage of time varying acoustic signals ,(1998)
Kinya Takamizawa, Makoto Hirama, Hironobu Hongo, Ultrasonic imaging apparatus ,(1989)
Ryuichi Shinomura, Yuuichi Miwa, Shinichiro Umemura, Ultrasonic diagnosis device ,(1998)