[go: up one dir, main page]

BE903900A - Circuit diviseur pour echantillonnage pcm code. - Google Patents

Circuit diviseur pour echantillonnage pcm code.

Info

Publication number
BE903900A
BE903900A BE2/60884A BE2060884A BE903900A BE 903900 A BE903900 A BE 903900A BE 2/60884 A BE2/60884 A BE 2/60884A BE 2060884 A BE2060884 A BE 2060884A BE 903900 A BE903900 A BE 903900A
Authority
BE
Belgium
Prior art keywords
mantissa
quotient
divider circuit
pcm code
pcm
Prior art date
Application number
BE2/60884A
Other languages
English (en)
Inventor
J P Mills
M S Macrander
Original Assignee
Gte Comm Systems 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 Gte Comm Systems Corp filed Critical Gte Comm Systems Corp
Publication of BE903900A publication Critical patent/BE903900A/fr

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F7/00—Methods or arrangements for processing data by operating upon the order or content of the data handled
    • G06F7/38—Methods or arrangements for performing computations using exclusively denominational number representation, e.g. using binary, ternary, decimal representation
    • G06F7/48—Methods or arrangements for performing computations using exclusively denominational number representation, e.g. using binary, ternary, decimal representation using non-contact-making devices, e.g. tube, solid state device; using unspecified devices
    • G06F7/52—Multiplying; Dividing
    • G06F7/535—Dividing only
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F2207/00—Indexing scheme relating to methods or arrangements for processing data by operating upon the order or content of the data handled
    • G06F2207/535—Indexing scheme relating to groups G06F7/535 - G06F7/5375
    • G06F2207/5354—Using table lookup, e.g. for digit selection in division by digit recurrence
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F2207/00—Indexing scheme relating to methods or arrangements for processing data by operating upon the order or content of the data handled
    • G06F2207/535—Indexing scheme relating to groups G06F7/535 - G06F7/5375
    • G06F2207/5356—Via reciprocal, i.e. calculate reciprocal only, or calculate reciprocal first and then the quotient from the reciprocal and the numerator
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F7/00—Methods or arrangements for processing data by operating upon the order or content of the data handled
    • G06F7/38—Methods or arrangements for performing computations using exclusively denominational number representation, e.g. using binary, ternary, decimal representation
    • G06F7/48—Methods or arrangements for performing computations using exclusively denominational number representation, e.g. using binary, ternary, decimal representation using non-contact-making devices, e.g. tube, solid state device; using unspecified devices
    • G06F7/483—Computations with numbers represented by a non-linear combination of denominational numbers, e.g. rational numbers, logarithmic number system or floating-point numbers
    • G06F7/487—Multiplying; Dividing
    • G06F7/4873—Dividing
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F7/00—Methods or arrangements for processing data by operating upon the order or content of the data handled
    • G06F7/38—Methods or arrangements for performing computations using exclusively denominational number representation, e.g. using binary, ternary, decimal representation
    • G06F7/48—Methods or arrangements for performing computations using exclusively denominational number representation, e.g. using binary, ternary, decimal representation using non-contact-making devices, e.g. tube, solid state device; using unspecified devices
    • G06F7/499—Denomination or exception handling, e.g. rounding or overflow
    • G06F7/49936—Normalisation mentioned as feature only

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Mathematical Analysis (AREA)
  • Mathematical Optimization (AREA)
  • Pure & Applied Mathematics (AREA)
  • Computational Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Computing Systems (AREA)
  • General Engineering & Computer Science (AREA)
  • Complex Calculations (AREA)
  • Analogue/Digital Conversion (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)

Abstract

Un circuit divisant des échantillons, en code D2, de modulation par impulsions codées (PCM). Un soustracteur d'exposant produit la différence entre les exposants de deux nombres. Un circuit multiplicateur de mantisse calcule le quotient en multipliant la mantisse de l'échantillon PCM par un diviseur inversé. Un générateur de signe fournit la valeur du signe du quotient obtenu avec les deux nombres. Grace à un circuit de normalisation, la mantisse du quotient est comprise dans un intervalle de valeurs prédéterminées.
BE2/60884A 1984-12-31 1985-12-20 Circuit diviseur pour echantillonnage pcm code. BE903900A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US06/687,874 US4744045A (en) 1984-12-31 1984-12-31 Divider circuit for encoded PCM samples

Publications (1)

Publication Number Publication Date
BE903900A true BE903900A (fr) 1986-04-16

Family

ID=24762226

Family Applications (1)

Application Number Title Priority Date Filing Date
BE2/60884A BE903900A (fr) 1984-12-31 1985-12-20 Circuit diviseur pour echantillonnage pcm code.

Country Status (4)

Country Link
US (1) US4744045A (fr)
BE (1) BE903900A (fr)
CA (1) CA1244952A (fr)
IT (1) IT1186426B (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4991132A (en) * 1987-12-17 1991-02-05 Matsushita Electric Industrial Co., Ltd. Apparatus for executing division by high-speed convergence processing
US9792087B2 (en) 2012-04-20 2017-10-17 Futurewei Technologies, Inc. System and method for a floating-point format for digital signal processors

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3508038A (en) * 1966-08-30 1970-04-21 Ibm Multiplying apparatus for performing division using successive approximate reciprocals of a divisor
US3777132A (en) * 1972-02-23 1973-12-04 Burroughs Corp Method and apparatus for obtaining the reciprocal of a number and the quotient of two numbers
JPS5534613B2 (fr) * 1973-10-08 1980-09-08
US4118785A (en) * 1973-10-08 1978-10-03 Nippon Telegraph And Telephone Public Corporation Method and apparatus for digital attenuation by pattern shifting
US4101967A (en) * 1976-05-19 1978-07-18 Tendy Electronics Co. Single bit logic microprocessor
JPS5633734A (en) * 1979-08-25 1981-04-04 Aisuke Katayama Divisor conversion type high-speed division system
GB2059123B (en) * 1979-09-22 1983-09-21 Kokusai Denshin Denwa Co Ltd Pcm signal calculator
DE3232558A1 (de) * 1982-09-01 1984-03-01 Siemens AG, 1000 Berlin und 8000 München Digitaler dpcm-kodierer mit hoher verarbeitungsgeschwindigkeit

Also Published As

Publication number Publication date
CA1244952A (fr) 1988-11-15
IT1186426B (it) 1987-11-26
US4744045A (en) 1988-05-10
IT8523174A0 (it) 1985-12-11

Similar Documents

Publication Publication Date Title
FR2435710A1 (fr) Appareil de neutralisation de resistance pour dispositifs electrochimiques
FR2297422A1 (fr) Diluant a buts multiples pour utilisation dans l'analyse du sang par un appareillage electronique du type coulter
JPS52106937A (en) Chord indicator for keyboard instrument
Whitehouse et al. Assessment of surface topology analysis technique in turning
BE903900A (fr) Circuit diviseur pour echantillonnage pcm code.
FR2603719A1 (fr) Dispositif de determination de la transformee numerique d'un signal
IT7822998A0 (it) D'oro. elettrolita per la elettrodeposizione di una lega
FR2387507A1 (fr)
FR2386081A1 (fr) Procede et dispositif pour la detection de la beta-thalassemie mineure
JPS5391898A (en) Reagent pack and analysis implement
JPS53110594A (en) Determination of volume of erythrocytes in blood sample
FR2448549A1 (fr) Copolymeres de n-vinyl pyrrolidone et d'un ester vinylique, allylique ou methallylique d'un acide carboxylique a ou b-cyclique, et leur utilisation en cosmetique
BE903901A (fr) Circuit de multiplication pour des echantillons pcm codes.
BE903903A (fr) Circuit de multiplication et de division d'echantillons pcm codes.
Miki A note on close-to-convex functions
JPS5327353A (en) Bipolar digital-analog converter
JPS5355938A (en) Digiral filter
SU656074A1 (ru) Спектральный анализатор
SU1666946A1 (ru) Кулонометрическа чейка дл анализа жидкостей
JPS51137470A (en) Specimen cell doubling as reagent container
GB1452316A (en) Electrical measuring equipment method
Plucinska On certain problems connected with a division of a normal population into parts
SU918875A1 (ru) Многоканальный анализатор спектра
SU619547A1 (ru) Катодное устройство электролизера дл получени алюмини
SU945817A1 (ru) Цифровой измеритель отклонени частоты

Legal Events

Date Code Title Description
RE Patent lapsed

Owner name: GTE COMMUNICATION SYSTEMS CORP.

Effective date: 19901231