IT1040695B - Impianto elettronico di comunicazione in particolare per telefonia - Google Patents

Impianto elettronico di comunicazione in particolare per telefonia

Info

Publication number: IT1040695B
Authority: IT; Italy
Prior art keywords: telephony; communication system; electronic communication; electronic; communication
Prior art date: 1974-06-24

Application number

IT50191/75A

Other languages

English (en)

Original Assignee

North 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.)

1974-06-24

Filing date

1975-06-24

Publication date

1979-12-20

1975-06-24 Application filed by North Electric Co filed Critical North Electric Co

1979-12-20 Application granted granted Critical

1979-12-20 Publication of IT1040695B publication Critical patent/IT1040695B/it

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
- H03M7/3004—Digital delta-sigma modulation
- H03M7/3013—Non-linear modulators

Landscapes

Physics & Mathematics (AREA)
Nonlinear Science (AREA)
Engineering & Computer Science (AREA)
Theoretical Computer Science (AREA)
Compression, Expansion, Code Conversion, And Decoders (AREA)
Reduction Or Emphasis Of Bandwidth Of Signals (AREA)
Analogue/Digital Conversion (AREA)
Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)

IT50191/75A 1974-06-24 1975-06-24 Impianto elettronico di comunicazione in particolare per telefonia IT1040695B (it)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
US48238074A	1974-06-24	1974-06-24

Publications (1)

Publication Number	Publication Date
IT1040695B true IT1040695B (it)	1979-12-20

Family

ID=23915829

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
IT50191/75A IT1040695B (it)	1974-06-24	1975-06-24	Impianto elettronico di comunicazione in particolare per telefonia

Country Status (7)

Country	Link
US (1)	US4087754A (it)
AU (1)	AU8240075A (it)
CA (1)	CA1068822A (it)
FR (1)	FR2276741A1 (it)
GB (1)	GB1506261A (it)
IT (1)	IT1040695B (it)
SE (1)	SE405434B (it)

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US4199722A (en) *	1976-06-30	1980-04-22	Israel Paz	Tri-state delta modulator
GB1588219A (en) *	1977-02-07	1981-04-15	Post Office	Conversion of analogue signals to digital signals
NL7801909A (nl) *	1978-02-21	1979-08-23	Philips Nv	Inrichting voor het decoderen van een met adap- tieve deltamodulatie gecodeerd signaal.
DE2906886C2 (de) *	1979-02-22	1982-03-25	TE KA DE Felten & Guilleaume Fernmeldeanlagen GmbH, 8500 Nürnberg	Schaltungsanordnung zur Schrittakt-Gewinnung
EP0090904B1 (de) *	1982-04-03	1985-08-21	Deutsche ITT Industries GmbH	Schaltungsanordnung für seriell arbeitende Digitalfilter
US4484178A (en) *	1982-06-22	1984-11-20	International Business Machines Corporation	Digital-to-analog converter
US4520347A (en) *	1982-11-22	1985-05-28	Motorola, Inc.	Code conversion circuit
JPS6354827A (ja) *	1986-08-26	1988-03-09	Sony Corp	差分ｐｃｍ信号形成回路
JP2716140B2 (ja) *	1988-04-04	1998-02-18	富士通株式会社	コード変換器及びエンコーダ装置
US4901077A (en) *	1988-04-18	1990-02-13	Thomson Consumer Electronics, Inc.	Sigma-delta modulator for D-to-A converter
JPH07114367B2 (ja) *	1988-12-27	1995-12-06	三菱電機株式会社	信号処理装置
JPH0438520A (ja) *	1990-06-04	1992-02-07	Mitsubishi Electric Corp	２進数データ変換装置
US5757320A (en) *	1993-04-12	1998-05-26	The Regents Of The University Of California	Short range, ultra-wideband radar with high resolution swept range gate
US5561424A (en) *	1993-04-30	1996-10-01	Lucent Technologies Inc.	Data converter with minimum phase fir filter and method for calculating filter coefficients
US5793315A (en) *	1996-05-31	1998-08-11	Motorola, Inc.	Bit-serial digital expandor
US5832490A (en) *	1996-05-31	1998-11-03	Siemens Medical Systems, Inc.	Lossless data compression technique that also facilitates signal analysis
US7054372B2 (en) *	2000-12-15	2006-05-30	Lucent Technologies Inc.	Digital transmission line tap circuit
EP1592136B1 (fr) *	2004-04-21	2012-07-11	St Microelectronics S.A.	Démodulateur adaptable
CN103281057A (zh) *	2013-04-28	2013-09-04	康力电梯股份有限公司	一种输入信号的滤波方法

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US3596267A (en) *	1969-01-28	1971-07-27	Bell Telephone Labor Inc	Digital code converter for converting a delta modulation code to a different permutation code
US3638219A (en) *	1969-05-23	1972-01-25	Bell Telephone Labor Inc	Pcm coder
US3707680A (en) *	1970-05-20	1972-12-26	Communications Satellite Corp	Digital differential pulse code modulation system
US3772678A (en) *	1970-06-10	1973-11-13	Univ Sherbrooke	Converter from pulse code modulation to delta modulation
JPS513468B1 (it) *	1970-10-28	1976-02-03
FR2115686A5 (it) *	1970-11-30	1972-07-07	Labo Cent Telecommunicat
US3723909A (en) *	1971-06-21	1973-03-27	J Condon	Differential pulse code modulation system employing periodic modulator step modification
US3715722A (en) *	1971-07-02	1973-02-06	Ibm	Data normalization system
US3795900A (en) *	1971-11-09	1974-03-05	Nasa	Multifunction audio digitizer
US3916107A (en)	1972-10-06	1975-10-28	Bell Telephone Labor Inc	Digital system for reclocking pulse code modulation circuits
US3831167A (en) *	1972-11-08	1974-08-20	Bell Telephone Labor Inc	Digital-to-analog conversion using multiple decoders
US3878465A (en) *	1972-12-15	1975-04-15	Univ Sherbrooke	Instantaneous adaptative delta modulation system
US3824590A (en) *	1973-03-26	1974-07-16	Bell Telephone Labor Inc	Adaptive interpolating video encoder
US3906400A (en) *	1973-12-17	1975-09-16	Adams Russell Co	Transfer function realization with one-bit coefficients
US4035724A (en) *	1974-05-08	1977-07-12	Universite De Sherbrooke	Digital converter from continuous variable slope delta modulation to pulse code modulation
US4044306A (en) *	1974-07-26	1977-08-23	Universite De Snerbrooke	Digital converter from pulse code modulation to continuous variable slope delta modulation

1975
- 1975-06-20 CA CA229,847A patent/CA1068822A/en not_active Expired
- 1975-06-23 GB GB26580/75A patent/GB1506261A/en not_active Expired
- 1975-06-24 SE SE7507257A patent/SE405434B/xx not_active IP Right Cessation
- 1975-06-24 AU AU82400/75A patent/AU8240075A/en not_active Expired
- 1975-06-24 FR FR7519782A patent/FR2276741A1/fr active Granted
- 1975-06-24 IT IT50191/75A patent/IT1040695B/it active
1976
- 1976-08-24 US US05/717,458 patent/US4087754A/en not_active Expired - Lifetime

Also Published As

Publication number	Publication date
GB1506261A (en)	1978-04-05
FR2276741B3 (it)	1979-02-16
SE7507257L (sv)	1975-12-29
US4087754A (en)	1978-05-02
FR2276741A1 (fr)	1976-01-23
CA1068822A (en)	1979-12-25
AU8240075A (en)	1977-01-06
SE405434B (sv)	1978-12-04

Publication	Publication Date	Title
IT1051463B (it)	1981-04-21	Impianto di telecomunicazione
SE7511173L (sv)	1976-04-08	Digitalt kommunikationssystem
IT1040695B (it)	1979-12-20	Impianto elettronico di comunicazione in particolare per telefonia
NL7407717A (nl)	1975-12-12	Radiotelefoniesysteem.
NL169943C (nl)	1982-09-01	Communicatiestelsel.
IT1038695B (it)	1979-11-30	Sistmea di comunicazione perfezionato
IT1041013B (it)	1980-01-10	Impianto di comunicazione telefonico e sudi componenti
NL7505456A (nl)	1975-11-12	Elektrisch verbindingsblok.
NL7402575A (nl)	1975-08-28	Elektronisch telefoontoestel.
SE7507069L (sv)	1975-12-29	Snabbtelefonsystem.
NL7514138A (nl)	1976-06-15	Luidsprekend telefoonstelsel.
NL7513444A (nl)	1976-05-20	Communicatiesysteem.
NL7503734A (nl)	1975-10-01	Lijnkiezertelefoonstelsel.
NL7500501A (nl)	1975-07-28	Telefoonkiessysteem.
NL7509510A (nl)	1976-02-24	Telecommunicatiewerkwijze.
AT341008B (de)	1978-01-10	Fernsprechstation
NL7501953A (nl)	1975-10-03	Elektroradiografisch stelsel.
NL7509216A (nl)	1976-02-04	Communicatiestelsel met tijdverdeling.
NL174692C (nl)	1984-07-16	Telecommunicatiestelsel.
OA05195A (fr)	1981-02-28	Joncteur téléphonique.
SE409537B (sv)	1979-08-20	Telefonapparatsystem
NL7500263A (nl)	1975-08-01	Gegevenscommunicatiestelsel.
NL187043C (nl)	1991-05-01	Radio-telefoniestelsel.
NL7508523A (nl)	1976-02-10	Montage-isolatieblok.
NL184499C (nl)	1989-08-01	Telecommunicatieverbindingsstelsel.