FR2199145B1 - - Google Patents

Info

Publication number
FR2199145B1
FR2199145B1 FR7331851A FR7331851A FR2199145B1 FR 2199145 B1 FR2199145 B1 FR 2199145B1 FR 7331851 A FR7331851 A FR 7331851A FR 7331851 A FR7331851 A FR 7331851A FR 2199145 B1 FR2199145 B1 FR 2199145B1
Authority
FR
France
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.)
Expired
Application number
FR7331851A
Other languages
French (fr)
Other versions
FR2199145A1 (de
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.)
Koninklijke Philips NV
Original Assignee
Philips Gloeilampenfabrieken NV
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 Philips Gloeilampenfabrieken NV filed Critical Philips Gloeilampenfabrieken NV
Publication of FR2199145A1 publication Critical patent/FR2199145A1/fr
Application granted granted Critical
Publication of FR2199145B1 publication Critical patent/FR2199145B1/fr
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G1/00—Details of arrangements for controlling amplification
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06G—ANALOGUE COMPUTERS
    • G06G7/00—Devices in which the computing operation is performed by varying electric or magnetic quantities
    • G06G7/12—Arrangements for performing computing operations, e.g. operational amplifiers
    • G06G7/16—Arrangements for performing computing operations, e.g. operational amplifiers for multiplication or division
    • G06G7/163—Arrangements for performing computing operations, e.g. operational amplifiers for multiplication or division using a variable impedance controlled by one of the input signals, variable amplification or transfer function
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06G—ANALOGUE COMPUTERS
    • G06G7/00—Devices in which the computing operation is performed by varying electric or magnetic quantities
    • G06G7/12—Arrangements for performing computing operations, e.g. operational amplifiers
    • G06G7/24—Arrangements for performing computing operations, e.g. operational amplifiers for evaluating logarithmic or exponential functions, e.g. hyperbolic functions

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mathematical Physics (AREA)
  • Theoretical Computer Science (AREA)
  • Software Systems (AREA)
  • Computer Hardware Design (AREA)
  • General Physics & Mathematics (AREA)
  • Power Engineering (AREA)
  • Amplifiers (AREA)
  • Continuous-Control Power Sources That Use Transistors (AREA)
FR7331851A 1972-09-09 1973-09-04 Expired FR2199145B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL7212293A NL7212293A (de) 1972-09-09 1972-09-09

Publications (2)

Publication Number Publication Date
FR2199145A1 FR2199145A1 (de) 1974-04-05
FR2199145B1 true FR2199145B1 (de) 1978-11-10

Family

ID=19816901

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7331851A Expired FR2199145B1 (de) 1972-09-09 1973-09-04

Country Status (7)

Country Link
JP (1) JPS5412619B2 (de)
CA (1) CA1015401A (de)
DE (1) DE2342325A1 (de)
FR (1) FR2199145B1 (de)
GB (1) GB1444765A (de)
IT (1) IT993882B (de)
NL (1) NL7212293A (de)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWM383162U (en) * 2009-12-16 2010-06-21 Macroblock Inc Analog multiplier

Also Published As

Publication number Publication date
DE2342325A1 (de) 1974-03-21
FR2199145A1 (de) 1974-04-05
JPS5412619B2 (de) 1979-05-24
IT993882B (it) 1975-09-30
GB1444765A (en) 1976-08-04
NL7212293A (de) 1974-03-12
AU6005073A (en) 1975-03-06
JPS4968249A (de) 1974-07-02
CA1015401A (en) 1977-08-09

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Legal Events

Date Code Title Description
ST Notification of lapse