JPS576972A - Multiplying circuit of complex number - Google Patents

Multiplying circuit of complex number

Info

Publication number
JPS576972A
JPS576972A JP8181280A JP8181280A JPS576972A JP S576972 A JPS576972 A JP S576972A JP 8181280 A JP8181280 A JP 8181280A JP 8181280 A JP8181280 A JP 8181280A JP S576972 A JPS576972 A JP S576972A
Authority
JP
Japan
Prior art keywords
circuits
time
supplied
real
circuit
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.)
Pending
Application number
JP8181280A
Other languages
Japanese (ja)
Inventor
Haruo Akagi
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.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric 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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP8181280A priority Critical patent/JPS576972A/en
Publication of JPS576972A publication Critical patent/JPS576972A/en
Pending 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
    • G06G7/16—Arrangements for performing computing operations, e.g. operational amplifiers for multiplication or division
    • G06G7/161—Arrangements for performing computing operations, e.g. operational amplifiers for multiplication or division with pulse modulation, e.g. modulation of amplitude, width, frequency, phase or form

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)
  • Complex Calculations (AREA)

Abstract

PURPOSE:To reduce the number of multiplying circuits, by arranging in time-division within the unit computing time for both the real and imaginary number parts of a multiplicand. CONSTITUTION:The real number part (a) and the imaginary number part (b) of the multiplicant of the complex number supplied the input terminals 1 and 2 are arrayed in time division and within the unit arithmetic time (s) through a time dividing circuit 20 and with a timing T1. The output of the circuit 20 is supplied to the 1st and 2nd multiplying circuits 7 and 8 as a multiplicand respectively. While the real number part (c) and the imaginary number part (d) of the multiplier of the complex number supplied through input terminals 3 and 4 are supplied to the circuits 7 and 8 respectively. A multiplication is carried out between the parts (c) and (d) of the multiplicand and multiplier arrayed in time division through the circuits 7 and 8 to obtain products (e) and (f). These products (e) and (f) are delayed through delaying circuits 21 and 22 and by 1/2 unit computing time interval to deliver products e' and f'. A subtraction is carried out between e' and (f) through a subtracting circuit 11, and an addition is carried out through an adding circuit between (e) and f' to obtain a difference (g) and sum (h). Both (g) and (h) are latched by latching circuits 13 and 14 to obtain both the real and imaginary number parts of the product of a complex number.
JP8181280A 1980-06-16 1980-06-16 Multiplying circuit of complex number Pending JPS576972A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8181280A JPS576972A (en) 1980-06-16 1980-06-16 Multiplying circuit of complex number

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8181280A JPS576972A (en) 1980-06-16 1980-06-16 Multiplying circuit of complex number

Publications (1)

Publication Number Publication Date
JPS576972A true JPS576972A (en) 1982-01-13

Family

ID=13756902

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8181280A Pending JPS576972A (en) 1980-06-16 1980-06-16 Multiplying circuit of complex number

Country Status (1)

Country Link
JP (1) JPS576972A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62194577A (en) * 1985-12-16 1987-08-27 テキサス　インスツルメンツ　インコ−ポレイテツド Complex multiplier and complex multiplication
JPH01296707A (en) * 1988-05-24 1989-11-30 Sony Corp Digital arithmetic circuitry
WO1999000746A1 (en) * 1997-06-26 1999-01-07 Asahi Kasei Kogyo Kabushiki Kaisha Parallel arithmetic units and digital signal processor using the same
CN112748898A (en) * 2021-02-14 2021-05-04 成都启英泰伦科技有限公司 Complex vector computing device and computing method

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62194577A (en) * 1985-12-16 1987-08-27 テキサス　インスツルメンツ　インコ−ポレイテツド Complex multiplier and complex multiplication
JPH01296707A (en) * 1988-05-24 1989-11-30 Sony Corp Digital arithmetic circuitry
WO1999000746A1 (en) * 1997-06-26 1999-01-07 Asahi Kasei Kogyo Kabushiki Kaisha Parallel arithmetic units and digital signal processor using the same
CN112748898A (en) * 2021-02-14 2021-05-04 成都启英泰伦科技有限公司 Complex vector computing device and computing method

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