JPS6462134A - Ultrasonic diagnostic apparatus - Google Patents

Ultrasonic diagnostic apparatus

Info

Publication number
JPS6462134A
JPS6462134A JP62217336A JP21733687A JPS6462134A JP S6462134 A JPS6462134 A JP S6462134A JP 62217336 A JP62217336 A JP 62217336A JP 21733687 A JP21733687 A JP 21733687A JP S6462134 A JPS6462134 A JP S6462134A
Authority
JP
Japan
Prior art keywords
sound ray
signal
receiving
resolving power
inputted
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP62217336A
Other languages
Japanese (ja)
Other versions
JPH0331458B2 (en
Inventor
Toru Shimazaki
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
GE Healthcare Japan Corp
Original Assignee
Yokogawa Medical Systems Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Yokogawa Medical Systems Ltd filed Critical Yokogawa Medical Systems Ltd
Priority to JP62217336A priority Critical patent/JPS6462134A/en
Priority to PCT/JP1988/000872 priority patent/WO1989001761A1/en
Priority to DE3854303T priority patent/DE3854303T2/en
Priority to EP88907807A priority patent/EP0394439B1/en
Priority to US07/465,166 priority patent/US5090412A/en
Publication of JPS6462134A publication Critical patent/JPS6462134A/en
Publication of JPH0331458B2 publication Critical patent/JPH0331458B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
  • Ultra Sonic Daignosis Equipment (AREA)

Abstract

PURPOSE:To reduce noise and to enhance image quality, by phasing and adding the receiving signal based on sound ray transmitted at an angle unit smaller than beam resolving power to temporarily store the same after logarithmic amplification and performing the correlational operation of said signal with the receiving signal based on the next sound ray. CONSTITUTION:A transducer 5 transmits a sound ray A and subsequently deflects beam slightly to transmit sound ray B having acoustic path difference smaller than beam resolving power capable of discriminating the min. pin target to scan a slice surface while an angle is successively changed. The reflected wave (sound ray-A signal) based on the sound ray A is received by the transducer array 5, and phased and added by a receiving beam former 6 through a transmitting and receiving circuit 4. This output signal is logarithmically compressed and amplified by a logarithmic amplifier 7 and converted to a digital signal by an A/D converter 11 to be temporarily stored in a one line buffer memory 12 before inputted to a correlation operator 13. Next, when the receiving signal (sound ray-B signal) based on the sound ray B is inputted to the memory 12 in the same way, the data of the stored sound ray-A signal is extruded to the correlation operator 13 and subjected to a simple addition and averaging with the sound ray-B signal.
JP62217336A 1987-08-31 1987-08-31 Ultrasonic diagnostic apparatus Granted JPS6462134A (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
JP62217336A JPS6462134A (en) 1987-08-31 1987-08-31 Ultrasonic diagnostic apparatus
PCT/JP1988/000872 WO1989001761A1 (en) 1987-08-31 1988-08-31 Ultrasonic diagnostic apparatus
DE3854303T DE3854303T2 (en) 1987-08-31 1988-08-31 ULTRASONIC DIAGNOSTIC DEVICE.
EP88907807A EP0394439B1 (en) 1987-08-31 1988-08-31 Ultrasonic diagnostic apparatus
US07/465,166 US5090412A (en) 1987-08-31 1988-08-31 Ultrasonic diagnosis apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62217336A JPS6462134A (en) 1987-08-31 1987-08-31 Ultrasonic diagnostic apparatus

Publications (2)

Publication Number Publication Date
JPS6462134A true JPS6462134A (en) 1989-03-08
JPH0331458B2 JPH0331458B2 (en) 1991-05-07

Family

ID=16702581

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62217336A Granted JPS6462134A (en) 1987-08-31 1987-08-31 Ultrasonic diagnostic apparatus

Country Status (1)

Country Link
JP (1) JPS6462134A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2012210316A (en) * 2011-03-31 2012-11-01 Ge Medical Systems Global Technology Co Llc Ultrasonic diagnostic apparatus and control program thereof

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2012210316A (en) * 2011-03-31 2012-11-01 Ge Medical Systems Global Technology Co Llc Ultrasonic diagnostic apparatus and control program thereof

Also Published As

Publication number Publication date
JPH0331458B2 (en) 1991-05-07

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