JPS5710512A - Equalizing circuit - Google Patents

Equalizing circuit

Info

Publication number
JPS5710512A
JPS5710512A JP8370780A JP8370780A JPS5710512A JP S5710512 A JPS5710512 A JP S5710512A JP 8370780 A JP8370780 A JP 8370780A JP 8370780 A JP8370780 A JP 8370780A JP S5710512 A JPS5710512 A JP S5710512A
Authority
JP
Japan
Prior art keywords
amplitude
control signal
circuit
phase
equalizing circuit
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
JP8370780A
Other languages
Japanese (ja)
Other versions
JPS6323782B2 (en
Inventor
Keiichi Murakami
Shinichi Amamiya
Tadahiko Yanajima
Nobushiro Shimura
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.)
Fujitsu Ltd
Original Assignee
Fujitsu 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 Fujitsu Ltd filed Critical Fujitsu Ltd
Priority to JP8370780A priority Critical patent/JPS5710512A/en
Publication of JPS5710512A publication Critical patent/JPS5710512A/en
Publication of JPS6323782B2 publication Critical patent/JPS6323782B2/ja
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B3/00—Line transmission systems
    • H04B3/02—Details
    • H04B3/04—Control of transmission; Equalising
    • H04B3/14—Control of transmission; Equalising characterised by the equalising network used

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Ultra Sonic Daignosis Equipment (AREA)
  • Filters And Equalizers (AREA)
  • Networks Using Active Elements (AREA)

Abstract

PURPOSE:To change the amplitude and phase characteristics according to the relation between control signals, by using a circuit determining the relation between the control signals for an amplitude equalizing circuit and a phase equalizing circuit which can vary for the characteristics. CONSTITUTION:In a transmission driving unit 2a, signals having the same amplitude from f1 to f2 in frequencies are applied to a probe 2 to transmit ultrasonic waves and the reflection wave is converted into an electric signal and inputted to an amplitude equalizing circuit 4. On the other hand, a control signal generating source 5 is synchronized with a transmission driving timing and a control signal Vc is applied to the circuit 4 to equalize the amplitude distortion in response to the frequency and the signal in amplitude equalization is applied to a phase equalizing circuit 7. The control signal Vc is applied to a phase control signal forming unit 6 and a control signal V'c corresponding to the control signal Vc is produced from the known phase characteristics between the control signals Vc and V'c in the circuits 4 and 7 and it is applied to the circuit 7.
JP8370780A 1980-06-20 1980-06-20 Equalizing circuit Granted JPS5710512A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8370780A JPS5710512A (en) 1980-06-20 1980-06-20 Equalizing circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8370780A JPS5710512A (en) 1980-06-20 1980-06-20 Equalizing circuit

Publications (2)

Publication Number Publication Date
JPS5710512A true JPS5710512A (en) 1982-01-20
JPS6323782B2 JPS6323782B2 (en) 1988-05-18

Family

ID=13809962

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8370780A Granted JPS5710512A (en) 1980-06-20 1980-06-20 Equalizing circuit

Country Status (1)

Country Link
JP (1) JPS5710512A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62219806A (en) * 1986-03-20 1987-09-28 Sanyo Electric Co Ltd Waveform equalizer
WO2011048939A1 (en) * 2009-10-23 2011-04-28 コニカミノルタエムジー株式会社 Ultrasound diagnosis apparatus

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5116839A (en) * 1974-08-01 1976-02-10 Sony Corp KAHENISOKAIRO
JPS53107259A (en) * 1977-03-02 1978-09-19 Nippon Hoso Kyokai <Nhk> Compensator for delay of envelope

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5116839A (en) * 1974-08-01 1976-02-10 Sony Corp KAHENISOKAIRO
JPS53107259A (en) * 1977-03-02 1978-09-19 Nippon Hoso Kyokai <Nhk> Compensator for delay of envelope

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62219806A (en) * 1986-03-20 1987-09-28 Sanyo Electric Co Ltd Waveform equalizer
WO2011048939A1 (en) * 2009-10-23 2011-04-28 コニカミノルタエムジー株式会社 Ultrasound diagnosis apparatus
JP5692083B2 (en) * 2009-10-23 2015-04-01 コニカミノルタ株式会社 Ultrasonic diagnostic equipment

Also Published As

Publication number Publication date
JPS6323782B2 (en) 1988-05-18

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