IT992790B - Circuito moltiplicatore a quattro quadranti - Google Patents

Circuito moltiplicatore a quattro quadranti

Info

Publication number
IT992790B
IT992790B IT27370/73A IT2737073A IT992790B IT 992790 B IT992790 B IT 992790B IT 27370/73 A IT27370/73 A IT 27370/73A IT 2737073 A IT2737073 A IT 2737073A IT 992790 B IT992790 B IT 992790B
Authority
IT
Italy
Prior art keywords
multiplier circuit
quadrant multiplier
quadrant
circuit
multiplier
Prior art date
Application number
IT27370/73A
Other languages
English (en)
Original Assignee
Philips 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 Nv filed Critical Philips Nv
Application granted granted Critical
Publication of IT992790B publication Critical patent/IT992790B/it

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
    • G06G7/16—Arrangements for performing computing operations, e.g. operational amplifiers for multiplication or division

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mathematical Physics (AREA)
  • Theoretical Computer Science (AREA)
  • Power Engineering (AREA)
  • Software Systems (AREA)
  • Computer Hardware Design (AREA)
  • General Physics & Mathematics (AREA)
  • Amplifiers (AREA)
IT27370/73A 1972-08-03 1973-07-31 Circuito moltiplicatore a quattro quadranti IT992790B (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL7210633A NL7210633A (it) 1972-08-03 1972-08-03

Publications (1)

Publication Number Publication Date
IT992790B true IT992790B (it) 1975-09-30

Family

ID=19816649

Family Applications (1)

Application Number Title Priority Date Filing Date
IT27370/73A IT992790B (it) 1972-08-03 1973-07-31 Circuito moltiplicatore a quattro quadranti

Country Status (10)

Country Link
US (1) US3838262A (it)
JP (1) JPS5248047B2 (it)
CA (1) CA984918A (it)
DE (1) DE2335945C3 (it)
ES (1) ES417457A1 (it)
FR (1) FR2195006B1 (it)
GB (1) GB1440093A (it)
HK (1) HK10078A (it)
IT (1) IT992790B (it)
NL (1) NL7210633A (it)

Families Citing this family (30)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3943455A (en) * 1974-06-03 1976-03-09 The United States Of America As Represented By The Secretary Of The Navy Analog feedback amplifier employing a four-quadrant integrated circuit multiplier as the active control element
US3936725A (en) * 1974-08-15 1976-02-03 Bell Telephone Laboratories, Incorporated Current mirrors
DE2459271C3 (de) * 1974-12-14 1980-08-28 Philips Patentverwaltung Gmbh, 2000 Hamburg Schaltungsanordnung zum Erzeugen eines kompensierten Gleichstromes
JPS51124355A (en) * 1975-04-23 1976-10-29 Sony Corp Crystal oscillation circuit
DE2605498C3 (de) * 1976-02-12 1983-11-03 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Schaltungsanordnung zur Erzeugung eines stufenförmigen Impulses
US4019118A (en) * 1976-03-29 1977-04-19 Rca Corporation Third harmonic signal generator
US4238695A (en) * 1978-10-20 1980-12-09 Bell Telephone Laboratories, Incorporated Comparator circuit having high speed, high current switching capability
US4385364A (en) * 1980-11-03 1983-05-24 Motorola, Inc. Electronic gain control circuit
US4524292A (en) * 1981-09-24 1985-06-18 Tokyo Shibaura Denki Kabushiki Kaisha Analog arithmetic operation circuit
US4586155A (en) * 1983-02-11 1986-04-29 Analog Devices, Incorporated High-accuracy four-quadrant multiplier which also is capable of four-quadrant division
US4694204A (en) * 1984-02-29 1987-09-15 Nec Corporation Transistor circuit for signal multiplier
EP0166044B1 (en) * 1984-06-25 1989-03-15 International Business Machines Corporation Four quadrant multiplier
US4870303A (en) * 1988-06-03 1989-09-26 Motorola, Inc. Phase detector
ATE96558T1 (de) * 1988-08-31 1993-11-15 Siemens Ag Multieingangs-vier-quadranten-multiplizierer.
JP2661394B2 (ja) * 1991-04-08 1997-10-08 日本電気株式会社 掛算回路
JP2576774B2 (ja) * 1993-10-29 1997-01-29 日本電気株式会社 トリプラおよびクァドルプラ
US5656964A (en) * 1995-07-26 1997-08-12 National Science Council CMOS low-voltage four-quadrant multiplier
KR100219036B1 (ko) * 1996-09-30 1999-09-01 이계철 저전압형 모스펫 콘트롤링 곱셈기
KR100219037B1 (ko) * 1996-10-01 1999-09-01 이계철 선형화된 저항성을 이용한 모스펫 아날로그 곱셈기
US6029060A (en) * 1997-07-16 2000-02-22 Lucent Technologies Inc. Mixer with current mirror load
US5859559A (en) * 1997-07-31 1999-01-12 Raytheon Company Mixer structures with enhanced conversion gain and reduced spurious signals
JP3232560B2 (ja) * 1999-01-21 2001-11-26 日本電気株式会社 位相比較回路
US10042807B2 (en) 2016-04-05 2018-08-07 Infineon Technologies Ag Differential bus receiver with four-quadrant input circuit
EP3577053B1 (en) 2017-01-31 2023-04-26 JLG Industries, Inc. Pothole protection mechanism for a lift machine
US10594334B1 (en) 2018-04-17 2020-03-17 Ali Tasdighi Far Mixed-mode multipliers for artificial intelligence
US10832014B1 (en) 2018-04-17 2020-11-10 Ali Tasdighi Far Multi-quadrant analog current-mode multipliers for artificial intelligence
US10700695B1 (en) 2018-04-17 2020-06-30 Ali Tasdighi Far Mixed-mode quarter square multipliers for machine learning
US10819283B1 (en) 2019-06-04 2020-10-27 Ali Tasdighi Far Current-mode analog multipliers using substrate bipolar transistors in CMOS for artificial intelligence
US11416218B1 (en) 2020-07-10 2022-08-16 Ali Tasdighi Far Digital approximate squarer for machine learning
US11467805B1 (en) 2020-07-10 2022-10-11 Ali Tasdighi Far Digital approximate multipliers for machine learning and artificial intelligence applications

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3536904A (en) * 1968-09-23 1970-10-27 Gen Electric Four-quadrant pulse width multiplier
US3633005A (en) * 1970-02-26 1972-01-04 Ibm A four quadrant multiplier using a single amplifier in a balanced modulator circuit
US3683165A (en) * 1970-07-23 1972-08-08 Computer Sciences Corp Four quadrant multiplier using bi-polar digital analog converter

Also Published As

Publication number Publication date
GB1440093A (en) 1976-06-23
US3838262A (en) 1974-09-24
JPS5248047B2 (it) 1977-12-07
DE2335945A1 (de) 1974-02-14
JPS4946845A (it) 1974-05-07
FR2195006B1 (it) 1982-06-18
HK10078A (en) 1978-03-03
FR2195006A1 (it) 1974-03-01
AU5866473A (en) 1975-01-30
ES417457A1 (es) 1976-03-16
NL7210633A (it) 1974-02-05
DE2335945B2 (de) 1978-02-09
CA984918A (en) 1976-03-02
DE2335945C3 (de) 1978-10-12

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