GB1302056A - - Google Patents

Info

Publication number
GB1302056A
GB1302056A GB4472670A GB1302056DA GB1302056A GB 1302056 A GB1302056 A GB 1302056A GB 4472670 A GB4472670 A GB 4472670A GB 1302056D A GB1302056D A GB 1302056DA GB 1302056 A GB1302056 A GB 1302056A
Authority
GB
United Kingdom
Prior art keywords
stage
sept
capacitors
output
applying
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.)
Expired
Application number
GB4472670A
Other languages
English (en)
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 filed Critical
Publication of GB1302056A publication Critical patent/GB1302056A/en
Expired legal-status Critical Current

Links

Classifications

    • 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

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Mathematical Physics (AREA)
  • Theoretical Computer Science (AREA)
  • Software Systems (AREA)
  • Computer Hardware Design (AREA)
  • General Physics & Mathematics (AREA)
  • Tone Control, Compression And Expansion, Limiting Amplitude (AREA)
  • Amplifiers (AREA)
  • Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
GB4472670A 1970-09-19 1970-09-19 Expired GB1302056A (xx)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB4472670 1970-09-19

Publications (1)

Publication Number Publication Date
GB1302056A true GB1302056A (xx) 1973-01-04

Family

ID=10434492

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4472670A Expired GB1302056A (xx) 1970-09-19 1970-09-19

Country Status (5)

Country Link
US (1) US3736415A (xx)
CA (1) CA941069A (xx)
DE (1) DE2145885A1 (xx)
FR (1) FR2106625B1 (xx)
GB (1) GB1302056A (xx)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS51115750A (en) * 1975-04-04 1976-10-12 Hitachi Ltd Multiplication device

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3453423A (en) * 1966-03-16 1969-07-01 Atomic Energy Commission Four quadrant logarithmic multiplier for time-dependent signals
US3540825A (en) * 1968-01-18 1970-11-17 Mcpherson Instr Corp Double beam spectrometer readout system
US3532868A (en) * 1968-07-24 1970-10-06 Electronic Associates Log multiplier with logarithmic function generator connected in feedback loop of operational amplifier
US3584232A (en) * 1969-01-21 1971-06-08 Bell Telephone Labor Inc Precision logarithmic converter

Also Published As

Publication number Publication date
FR2106625A1 (xx) 1972-05-05
US3736415A (en) 1973-05-29
FR2106625B1 (xx) 1976-03-26
CA941069A (en) 1974-01-29
DE2145885A1 (de) 1972-03-23

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee