FR2346908A1 - Circuit pour la conversion directe d'un signal analogique ou d'un rapport de deux signaux analogiques en une valeur logarithmique numerique, notamment pour appareil de tomographie axiale transverse - Google Patents

Circuit pour la conversion directe d'un signal analogique ou d'un rapport de deux signaux analogiques en une valeur logarithmique numerique, notamment pour appareil de tomographie axiale transverse

Info

Publication number
FR2346908A1
FR2346908A1 FR7609710A FR7609710A FR2346908A1 FR 2346908 A1 FR2346908 A1 FR 2346908A1 FR 7609710 A FR7609710 A FR 7609710A FR 7609710 A FR7609710 A FR 7609710A FR 2346908 A1 FR2346908 A1 FR 2346908A1
Authority
FR
France
Prior art keywords
analogue
timer
counter
comparator
esp
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
FR7609710A
Other languages
English (en)
French (fr)
Other versions
FR2346908B1 (enExample
Inventor
Robert Sigelle
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.)
Compagnie Generale de Radiologie SA
Original Assignee
Compagnie Generale de Radiologie SA
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 Compagnie Generale de Radiologie SA filed Critical Compagnie Generale de Radiologie SA
Priority to FR7609710A priority Critical patent/FR2346908A1/fr
Publication of FR2346908A1 publication Critical patent/FR2346908A1/fr
Application granted granted Critical
Publication of FR2346908B1 publication Critical patent/FR2346908B1/fr
Granted legal-status Critical Current

Links

Classifications

    • GPHYSICS
    • G06COMPUTING OR CALCULATING; COUNTING
    • G06JHYBRID COMPUTING ARRANGEMENTS
    • G06J1/00Hybrid computing arrangements
    • HELECTRICITY
    • H03ELECTRONIC CIRCUITRY
    • H03MCODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M1/00Analogue/digital conversion; Digital/analogue conversion
    • HELECTRICITY
    • H03ELECTRONIC CIRCUITRY
    • H03MCODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M1/00Analogue/digital conversion; Digital/analogue conversion
    • H03M1/12Analogue/digital converters
    • H03M1/14Conversion in steps with each step involving the same or a different conversion means and delivering more than one bit

Landscapes

  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Computer Hardware Design (AREA)
  • Mathematical Physics (AREA)
  • Automation & Control Theory (AREA)
  • Evolutionary Computation (AREA)
  • Fuzzy Systems (AREA)
  • General Physics & Mathematics (AREA)
  • Software Systems (AREA)
  • Analysing Materials By The Use Of Radiation (AREA)
FR7609710A 1976-04-02 1976-04-02 Circuit pour la conversion directe d'un signal analogique ou d'un rapport de deux signaux analogiques en une valeur logarithmique numerique, notamment pour appareil de tomographie axiale transverse Granted FR2346908A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7609710A FR2346908A1 (fr) 1976-04-02 1976-04-02 Circuit pour la conversion directe d'un signal analogique ou d'un rapport de deux signaux analogiques en une valeur logarithmique numerique, notamment pour appareil de tomographie axiale transverse

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7609710A FR2346908A1 (fr) 1976-04-02 1976-04-02 Circuit pour la conversion directe d'un signal analogique ou d'un rapport de deux signaux analogiques en une valeur logarithmique numerique, notamment pour appareil de tomographie axiale transverse

Publications (2)

Publication Number Publication Date
FR2346908A1 true FR2346908A1 (fr) 1977-10-28
FR2346908B1 FR2346908B1 (enExample) 1978-08-25

Family

ID=9171342

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7609710A Granted FR2346908A1 (fr) 1976-04-02 1976-04-02 Circuit pour la conversion directe d'un signal analogique ou d'un rapport de deux signaux analogiques en une valeur logarithmique numerique, notamment pour appareil de tomographie axiale transverse

Country Status (1)

Country Link
FR (1) FR2346908A1 (enExample)

Also Published As

Publication number Publication date
FR2346908B1 (enExample) 1978-08-25

Similar Documents

Publication Publication Date Title
GB1535153A (en) Liquid-level supervisory apparatus
US4035720A (en) Ion gauge system
JPS5175482A (en) Denshidokeini okeru denchijumyohyojisochi
FR2346908A1 (fr) Circuit pour la conversion directe d'un signal analogique ou d'un rapport de deux signaux analogiques en une valeur logarithmique numerique, notamment pour appareil de tomographie axiale transverse
JPS55123239A (en) Programmable divider
JPS5764398A (en) Memory device
GB1287620A (en) Frequency to direct current converter circuit
GB1419656A (en) System for converting a ratio of two input signals into a logarithmic value
GB1462814A (en) Comparator circuit for use with photometric apparatus
JPS5568739A (en) Preset circuit
JPS5713810A (en) Monostable multivibrator
US4277747A (en) Wide range digital meter
JPS55113983A (en) Integrated circuit device for watch
FR2385089A1 (fr) Dispositif integrateur pour la determination d'une temperature moyenne
JPS57189018A (en) Liquid level measuring instrument
KR870003648Y1 (ko) 펄스계수 입력장치용 펄스 발생장치
JPS5659365A (en) Arithmetic circuit
SU427481A1 (ru) Устройство для динамическоговычитания двух последовательностейимпульсов
GB1535590A (en) Multiplication apparatus
SU905987A1 (ru) Управл емый генератор
SU419912A1 (ru) Функциональный преобразовательф0м
SU370536A1 (ru) Цифровой способ измерения частоты следования
JPS5510255A (en) Variable divider-multiplier circuit using n-channel filter
SU410403A1 (enExample)
US2996253A (en) Computing equipment

Legal Events

Date Code Title Description
ST Notification of lapse