DE2725157B1 - Tiefenausgleichverstaerker fuer Ultraschall-Bildgeraete - Google Patents

Tiefenausgleichverstaerker fuer Ultraschall-Bildgeraete

Info

Publication number
DE2725157B1
DE2725157B1 DE19772725157 DE2725157A DE2725157B1 DE 2725157 B1 DE2725157 B1 DE 2725157B1 DE 19772725157 DE19772725157 DE 19772725157 DE 2725157 A DE2725157 A DE 2725157A DE 2725157 B1 DE2725157 B1 DE 2725157B1
Authority
DE
Germany
Prior art keywords
field effect
effect transistors
depth
gain
amplifier
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
DE19772725157
Other languages
German (de)
English (en)
Other versions
DE2725157C2 (enExample
Inventor
Dieter Dipl-Ing Hassler
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.)
Siemens Corp
Original Assignee
Siemens 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 Siemens Corp filed Critical Siemens Corp
Priority to DE19772725157 priority Critical patent/DE2725157B1/de
Publication of DE2725157B1 publication Critical patent/DE2725157B1/de
Application granted granted Critical
Publication of DE2725157C2 publication Critical patent/DE2725157C2/de
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G1/00—Details of arrangements for controlling amplification
    • H03G1/0005—Circuits characterised by the type of controlling devices operated by a controlling current or voltage signal
    • H03G1/0035—Circuits characterised by the type of controlling devices operated by a controlling current or voltage signal using continuously variable impedance elements
    • H03G1/007—Circuits characterised by the type of controlling devices operated by a controlling current or voltage signal using continuously variable impedance elements using field-effect transistors [FET]
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
    • G01S7/52—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S15/00
    • G01S7/52017—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S15/00 particularly adapted to short-range imaging
    • G01S7/52023—Details of receivers
    • G01S7/52033—Gain control of receivers

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
  • Ultra Sonic Daignosis Equipment (AREA)
  • Amplifiers (AREA)
DE19772725157 1977-06-03 1977-06-03 Tiefenausgleichverstaerker fuer Ultraschall-Bildgeraete Granted DE2725157B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19772725157 DE2725157B1 (de) 1977-06-03 1977-06-03 Tiefenausgleichverstaerker fuer Ultraschall-Bildgeraete

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19772725157 DE2725157B1 (de) 1977-06-03 1977-06-03 Tiefenausgleichverstaerker fuer Ultraschall-Bildgeraete

Publications (2)

Publication Number Publication Date
DE2725157B1 true DE2725157B1 (de) 1978-06-15
DE2725157C2 DE2725157C2 (enExample) 1979-02-15

Family

ID=6010676

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19772725157 Granted DE2725157B1 (de) 1977-06-03 1977-06-03 Tiefenausgleichverstaerker fuer Ultraschall-Bildgeraete

Country Status (1)

Country Link
DE (1) DE2725157B1 (enExample)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4302774A (en) * 1979-05-03 1981-11-24 Hughes Aircraft Company Amplitude compression and frequency compensation system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4302774A (en) * 1979-05-03 1981-11-24 Hughes Aircraft Company Amplitude compression and frequency compensation system

Also Published As

Publication number Publication date
DE2725157C2 (enExample) 1979-02-15

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Legal Events

Date Code Title Description
8320 Willingness to grant licences declared (paragraph 23)
8339 Ceased/non-payment of the annual fee