SE409633B - Anordning for omvandling av en digital meddelandesignal fran en digital kodformation till en annan - Google Patents

Anordning for omvandling av en digital meddelandesignal fran en digital kodformation till en annan

Info

Publication number
SE409633B
SE409633B SE7512465A SE7512465A SE409633B SE 409633 B SE409633 B SE 409633B SE 7512465 A SE7512465 A SE 7512465A SE 7512465 A SE7512465 A SE 7512465A SE 409633 B SE409633 B SE 409633B
Authority
SE
Sweden
Prior art keywords
digital
conversion
another
message signal
code formation
Prior art date
Application number
SE7512465A
Other languages
English (en)
Other versions
SE7512465L (sv
Inventor
J L Flanagan
Original Assignee
Western Electric Co
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 Western Electric Co filed Critical Western Electric Co
Publication of SE7512465L publication Critical patent/SE7512465L/sv
Publication of SE409633B publication Critical patent/SE409633B/sv

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M7/00—Conversion of a code where information is represented by a given sequence or number of digits to a code where the same, similar or subset of information is represented by a different sequence or number of digits
    • H03M7/30—Compression; Expansion; Suppression of unnecessary data, e.g. redundancy reduction
    • H03M7/3002—Conversion to or from differential modulation
    • H03M7/3044—Conversion to or from differential modulation with several bits only, i.e. the difference between successive samples being coded by more than one bit, e.g. differential pulse code modulation [DPCM]
    • H03M7/3046—Conversion to or from differential modulation with several bits only, i.e. the difference between successive samples being coded by more than one bit, e.g. differential pulse code modulation [DPCM] adaptive, e.g. adaptive differential pulse code modulation [ADPCM]
SE7512465A 1972-04-19 1975-11-06 Anordning for omvandling av en digital meddelandesignal fran en digital kodformation till en annan SE409633B (sv)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US24555972A 1972-04-19 1972-04-19

Publications (2)

Publication Number Publication Date
SE7512465L SE7512465L (sv) 1975-11-06
SE409633B true SE409633B (sv) 1979-08-27

Family

ID=22927152

Family Applications (2)

Application Number Title Priority Date Filing Date
SE7304816A SE451522B (sv) 1972-04-19 1973-04-05 Anordning for omvandling av en i adpkm representerad digital signal till en digital signal i dpkm
SE7512465A SE409633B (sv) 1972-04-19 1975-11-06 Anordning for omvandling av en digital meddelandesignal fran en digital kodformation till en annan

Family Applications Before (1)

Application Number Title Priority Date Filing Date
SE7304816A SE451522B (sv) 1972-04-19 1973-04-05 Anordning for omvandling av en i adpkm representerad digital signal till en digital signal i dpkm

Country Status (10)

Country Link
US (1) US3772682A (sv)
JP (1) JPS5639578B2 (sv)
BE (1) BE798328A (sv)
CA (1) CA969279A (sv)
DE (1) DE2319650C3 (sv)
FR (1) FR2180964B1 (sv)
GB (1) GB1388232A (sv)
IT (1) IT991561B (sv)
NL (1) NL183115C (sv)
SE (2) SE451522B (sv)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL7400764A (nl) * 1974-01-21 1975-07-23 Philips Nv Digitale inrichting voor het omzetten van ge- comprimeerde delta gemoduleerde signalen in pcm-signalen.
US4206447A (en) * 1979-04-09 1980-06-03 Bell Telephone Laboratories, Incorporated Adaptive quantizer apparatus for differential coding of nonuniform digital signals
JPS56146313A (en) * 1980-04-15 1981-11-13 Victor Co Of Japan Ltd Compressing and expanding system of digital modulated wave
US4524447A (en) * 1983-05-25 1985-06-18 Rca Corporation Digital signal processing apparatus having digital dither
EP0402058B1 (en) * 1989-06-07 1996-03-27 Canon Kabushiki Kaisha Predictive decoding device correcting code errors
JP2754741B2 (ja) * 1989-06-09 1998-05-20 キヤノン株式会社 符号化装置
EP0508597B1 (en) * 1991-03-08 1997-11-12 Nec Corporation ADPCM transcoder wherein different bit numbers are used in code conversion
ATE442705T1 (de) 1999-07-19 2009-09-15 Texas Instruments Inc Differenzielle monadische kodierung für digitales audiosignal
US7453889B2 (en) * 2005-02-02 2008-11-18 Texas Instruments Incorporated Interoperability of ADPCM encoded voice communications

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3339142A (en) * 1963-07-01 1967-08-29 Martin Marietta Corp Adaptive pulse transmission system with modified delta modulation and redundant pulse elimination
FR1489885A (fr) * 1966-06-17 1967-07-28 Alcatel Sa Procédé de réduction de la bande passante dans un système de transmission par modulation en delta
US3500441A (en) * 1967-10-12 1970-03-10 Bell Telephone Labor Inc Delta modulation with discrete companding
US3526855A (en) * 1968-03-18 1970-09-01 Bell Telephone Labor Inc Pulse code modulation and differential pulse code modulation encoders
US3594560A (en) * 1969-01-03 1971-07-20 Bell Telephone Labor Inc Digital expandor circuit
US3707712A (en) * 1970-06-10 1972-12-26 Univ Sherbrooke Converter from delta modulation to pulse code modulation

Also Published As

Publication number Publication date
IT991561B (it) 1975-08-30
DE2319650B2 (de) 1980-09-18
SE7512465L (sv) 1975-11-06
FR2180964A1 (sv) 1973-11-30
DE2319650C3 (de) 1981-07-09
NL183115B (nl) 1988-02-16
NL183115C (nl) 1988-07-18
FR2180964B1 (sv) 1976-05-07
JPS4921056A (sv) 1974-02-25
NL7305371A (sv) 1973-10-23
BE798328A (fr) 1973-08-16
GB1388232A (en) 1975-03-26
JPS5639578B2 (sv) 1981-09-14
US3772682A (en) 1973-11-13
DE2319650A1 (de) 1973-10-25
SE451522B (sv) 1987-10-12
CA969279A (en) 1975-06-10
AU5450573A (en) 1974-10-17

Similar Documents

Publication Publication Date Title
SE413967B (sv) Anordning for omvandling av fergbildsignaler
HK60481A (en) Production of chewing gum
SE412379B (sv) Saett att framstaella en metalloeverdragen diamant
JPS51126188A (en) Method of producing digital thermometer
IT955501B (it) Indicatore ad anelli ruotanti per orologi da polso elettronici
SE7701523L (sv) Forfarande for framstellning av prostaglandiner
SE409633B (sv) Anordning for omvandling av en digital meddelandesignal fran en digital kodformation till en annan
BE806430A (fr) Convertisseur de signaux analogiques alternatifs en signaux numeriques
BE802917A (fr) Conversion des immondices
NO142797C (no) Kodegenerator for slumpmessige digitale signaler
SE383186B (sv) Forfarande for framstellning av reaktorelement
CH541901A (fr) Générateur numérique de signaux périodiques
SE403025B (sv) Anordning for avlesning av till denna anslutna informationskellor
FR2325293A5 (fr) Mecanisme generateur de signal
SE386334B (sv) Avkodningsanordning for omvandling av ett flode av binera data till en analog representation herav.
SE396261B (sv) Digital signalgenerator
SE7409142L (sv) Kopplingsanordning for omvandling av en frekvens till ett binertal.
SE381007B (sv) Kopplingsanordning for omvandling av ett flertal signaler till en enda digital signal
SE7609048L (sv) Forfarande for framstellning av prostaglandiner
SE396248B (sv) Kopplingsanordning for omvandling av en fysikalisk storhet till en elektrisk signal
SE7509780L (sv) Signalomvandlingsanordning
NO137134C (no) Kodeanordning for omforming av et analogt signal til digital kode
SE429046B (sv) Forfarande for omvandling av en penicillinsulfoxid till en desacetoxicefalosporin
NO138572C (no) Innretning for fremstilling av et lostoff
AT328520B (de) Digitales zeitmultiplexfernmeldesystem

Legal Events

Date Code Title Description
NUG Patent has lapsed

Ref document number: 7512465-1

Effective date: 19930510

Format of ref document f/p: F