DE2616660C3 - Arithmetische Einheit - Google Patents

Arithmetische Einheit

Info

Publication number
DE2616660C3
DE2616660C3 DE2616660A DE2616660A DE2616660C3 DE 2616660 C3 DE2616660 C3 DE 2616660C3 DE 2616660 A DE2616660 A DE 2616660A DE 2616660 A DE2616660 A DE 2616660A DE 2616660 C3 DE2616660 C3 DE 2616660C3
Authority
DE
Germany
Prior art keywords
multiplication
multiplier
recursive
adder
recursive path
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
DE2616660A
Other languages
German (de)
English (en)
Other versions
DE2616660A1 (de
DE2616660B2 (de
Inventor
Kunihiko Tokio Niwa
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.)
NEC Corp
Original Assignee
Nippon Electric Co Ltd
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 Nippon Electric Co Ltd filed Critical Nippon Electric Co Ltd
Publication of DE2616660A1 publication Critical patent/DE2616660A1/de
Publication of DE2616660B2 publication Critical patent/DE2616660B2/de
Application granted granted Critical
Publication of DE2616660C3 publication Critical patent/DE2616660C3/de
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F17/00—Digital computing or data processing equipment or methods, specially adapted for specific functions
    • G06F17/10—Complex mathematical operations
    • G06F17/14—Fourier, Walsh or analogous domain transformations, e.g. Laplace, Hilbert, Karhunen-Loeve, transforms
    • G06F17/141—Discrete Fourier transforms

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Mathematical Physics (AREA)
  • Computational Mathematics (AREA)
  • Mathematical Analysis (AREA)
  • Mathematical Optimization (AREA)
  • Pure & Applied Mathematics (AREA)
  • Data Mining & Analysis (AREA)
  • Theoretical Computer Science (AREA)
  • Discrete Mathematics (AREA)
  • Algebra (AREA)
  • Databases & Information Systems (AREA)
  • Software Systems (AREA)
  • General Engineering & Computer Science (AREA)
  • Complex Calculations (AREA)
DE2616660A 1975-04-22 1976-04-15 Arithmetische Einheit Expired DE2616660C3 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP50049322A JPS5827546B2 (ja) 1975-04-22 1975-04-22 エンザンソウチ

Publications (3)

Publication Number Publication Date
DE2616660A1 DE2616660A1 (de) 1976-11-11
DE2616660B2 DE2616660B2 (de) 1978-09-21
DE2616660C3 true DE2616660C3 (de) 1979-05-23

Family

ID=12827726

Family Applications (1)

Application Number Title Priority Date Filing Date
DE2616660A Expired DE2616660C3 (de) 1975-04-22 1976-04-15 Arithmetische Einheit

Country Status (4)

Country Link
US (1) US4080661A (enExample)
JP (1) JPS5827546B2 (enExample)
DE (1) DE2616660C3 (enExample)
FR (1) FR2308989A1 (enExample)

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS593790B2 (ja) 1975-06-20 1984-01-26 日本電気株式会社 Ｆｆｔ エンサンシヨリソウチ
US4225937A (en) * 1978-09-18 1980-09-30 Xerox Corporation Method and apparatus for suppression of error accumulation in recursive computation of a discrete Fourier transform
US4243935A (en) * 1979-05-18 1981-01-06 The United States Of America As Represented By The Secretary Of The Navy Adaptive detector
US4449194A (en) * 1981-09-25 1984-05-15 Motorola Inc. Multiple point, discrete cosine processor
JPS5955523A (ja) * 1982-09-24 1984-03-30 Advantest Corp デジタルスペクトルアナライザ用信号発生器
US4527101A (en) * 1983-11-23 1985-07-02 Black & Decker Inc. Universal electric motor speed sensing by using Fourier transform method
NL8502008A (nl) * 1985-07-12 1987-02-02 Philips Nv Ontvanginrichting voor het onder bescherming van een stoorsignaal/spraaksignaalbewakingsfunctie herkennen van een aantal verschillende en voorafbepaalde frequentiecombinaties van toonfrequente signaleringscomponenten.
FR2596892B1 (fr) * 1986-04-04 1988-05-20 Jutand Francis Circuit pour effectuer une transformation lineaire sur un signal numerique
US4972358A (en) * 1989-06-08 1990-11-20 General Electric Company Computation of discrete fourier transform using recursive techniques
US5477465A (en) * 1993-08-31 1995-12-19 Talx Corporation Multi-frequency receiver with arbitrary center frequencies
US6343304B1 (en) 1999-03-09 2002-01-29 National Science Council Apparatus with selective fixed-coefficient filter for performing recursive discrete cosine transforms
US6751641B1 (en) * 1999-08-17 2004-06-15 Eric Swanson Time domain data converter with output frequency domain conversion
US6940807B1 (en) 1999-10-26 2005-09-06 Velocity Communication, Inc. Method and apparatus for a X-DSL communication processor
US7028063B1 (en) 1999-10-26 2006-04-11 Velocity Communication, Inc. Method and apparatus for a DFT/IDFT engine supporting multiple X-DSL protocols
CN101218744B (zh) * 2005-07-15 2010-05-26 日本电气株式会社 自适应数字滤波器、fm接收机及信号处理方法
US7372770B2 (en) * 2006-09-12 2008-05-13 Mitsubishi Electric Research Laboratories, Inc. Ultrasonic Doppler sensor for speech-based user interface
DE102013000312B4 (de) * 2013-01-10 2018-05-03 Abb Schweiz Ag Demodulator für frequenzumgetastete Signale unter Verwendung des Goertzel-Algorithmus
WO2015051016A1 (en) * 2013-10-01 2015-04-09 The General Hospital Corporation System, method and computer-accessible medium for utilizing discrete fourier-transform for frequency near-infrared spectroscopy
CN111445017A (zh) * 2020-03-23 2020-07-24 天津芯海创科技有限公司 一种运算方法及装置

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1603175A (enExample) * 1968-07-30 1971-03-22
CH530643A (de) * 1971-04-22 1972-11-15 Hasler Ag Verfahren und Einrichtung zum Erkennen einer vorbestimmten Frequenz in einem Frequenzgemisch
US3961167A (en) * 1974-07-22 1976-06-01 Gte Automatic Electric Laboratories Incorporated PCM tone receiver using optimum statistical technique

Also Published As

Publication number Publication date
DE2616660A1 (de) 1976-11-11
DE2616660B2 (de) 1978-09-21
FR2308989B1 (enExample) 1980-05-16
FR2308989A1 (fr) 1976-11-19
JPS51139222A (en) 1976-12-01
JPS5827546B2 (ja) 1983-06-10
US4080661A (en) 1978-03-21

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Legal Events

Date Code Title Description
C3 Grant after two publication steps (3rd publication)