JPS6480353A - Ultrasonic diagnostic apparatus - Google Patents

Ultrasonic diagnostic apparatus

Info

Publication number
JPS6480353A
JPS6480353A JP62237209A JP23720987A JPS6480353A JP S6480353 A JPS6480353 A JP S6480353A JP 62237209 A JP62237209 A JP 62237209A JP 23720987 A JP23720987 A JP 23720987A JP S6480353 A JPS6480353 A JP S6480353A
Authority
JP
Japan
Prior art keywords
frequency
caliber
circuit
transmission
duplexer
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
JP62237209A
Other languages
Japanese (ja)
Other versions
JP2640656B2 (en
Inventor
Hiroshi Ikeda
Shinichiro Umemura
Hiroshi Kanda
Kageyoshi Katakura
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.)
Hitachi Healthcare Manufacturing Ltd
Original Assignee
Hitachi Medical Corp
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 Hitachi Medical Corp filed Critical Hitachi Medical Corp
Priority to JP62237209A priority Critical patent/JP2640656B2/en
Publication of JPS6480353A publication Critical patent/JPS6480353A/en
Application granted granted Critical
Publication of JP2640656B2 publication Critical patent/JP2640656B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related 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 always keep the effect of the weighting of a frequency region at the analytical time of frequency constant from a shallow part to a deep part, by providing a means for removing or correcting the effect of the difference of a frequency analytical region on the analysis of frequency. CONSTITUTION:At the time of transmission, a transmission caliber is selected by a caliber selection circuit 2 under a signal processing control circuit 10 and a duplexer 3 is set to a transmission mode. By this method, beam having an almost constant width from a shallow part to a deep part is formed. The vibrator exciting signal controlled in a phase by a transmission drive circuit 4 is supplied to a probe 1 through the duplexer 3 and the caliber selection circuit 2. At the time of reception, a receiving caliber is successively selected by the caliber selection circuit 2 under the signal processing control circuit 10 and the duplexer 3 is set to a receiving mode. A receiving signal is sent to a signal processing circuit 6 and a frequency analyzing circuit 7, and a B- mode image and a frequency analytical result are displayed on an image display apparatus 9.
JP62237209A 1987-09-24 1987-09-24 Ultrasound diagnostic equipment Expired - Fee Related JP2640656B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62237209A JP2640656B2 (en) 1987-09-24 1987-09-24 Ultrasound diagnostic equipment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62237209A JP2640656B2 (en) 1987-09-24 1987-09-24 Ultrasound diagnostic equipment

Publications (2)

Publication Number Publication Date
JPS6480353A true JPS6480353A (en) 1989-03-27
JP2640656B2 JP2640656B2 (en) 1997-08-13

Family

ID=17011999

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62237209A Expired - Fee Related JP2640656B2 (en) 1987-09-24 1987-09-24 Ultrasound diagnostic equipment

Country Status (1)

Country Link
JP (1) JP2640656B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2949273A4 (en) * 2013-01-23 2016-11-09 Olympus Corp Ultrasonic observation device, method for operating ultrasonic observation device, and program for operating ultrasonic observation device

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS52151277A (en) * 1976-06-11 1977-12-15 Hitachi Medical Corp Variable focus ultrasonic camera system
JPS59218144A (en) * 1983-05-26 1984-12-08 株式会社東芝 Ultrasonic diagnostic apparatus
JPS6148343A (en) * 1984-08-15 1986-03-10 株式会社東芝 Ultrasonic diagnostic apparatus

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS52151277A (en) * 1976-06-11 1977-12-15 Hitachi Medical Corp Variable focus ultrasonic camera system
JPS59218144A (en) * 1983-05-26 1984-12-08 株式会社東芝 Ultrasonic diagnostic apparatus
JPS6148343A (en) * 1984-08-15 1986-03-10 株式会社東芝 Ultrasonic diagnostic apparatus

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2949273A4 (en) * 2013-01-23 2016-11-09 Olympus Corp Ultrasonic observation device, method for operating ultrasonic observation device, and program for operating ultrasonic observation device

Also Published As

Publication number Publication date
JP2640656B2 (en) 1997-08-13

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Legal Events

Date Code Title Description
LAPS Cancellation because of no payment of annual fees