SE396868B - Digital ekosperr - Google Patents

Digital ekosperr

Info

Publication number: SE396868B
Authority: SE; Sweden
Prior art keywords: ecosphere; digital; digital ecosphere
Prior art date: 1974-06-13

Application number

SE7506359A

Other languages

English (en)

Swedish (sv)

Other versions

SE7506359L (sv

Inventor

S J Campanella

H G Suyderhoud

Jr M Onufry

Original Assignee

Communications Satellite 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.)

1974-06-13

Filing date

1975-06-04

Publication date

1977-10-03

1975-06-04 Application filed by Communications Satellite Corp filed Critical Communications Satellite Corp

1975-12-15 Publication of SE7506359L publication Critical patent/SE7506359L/xx

1977-10-03 Publication of SE396868B publication Critical patent/SE396868B/xx

Classifications

- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B3/00—Line transmission systems
- H04B3/02—Details
- H04B3/20—Reducing echo effects or singing; Opening or closing transmitting path; Conditioning for transmission in one direction or the other

Landscapes

Engineering & Computer Science (AREA)
Computer Networks & Wireless Communication (AREA)
Signal Processing (AREA)
Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
Interconnected Communication Systems, Intercoms, And Interphones (AREA)
Analogue/Digital Conversion (AREA)
Radio Relay Systems (AREA)

SE7506359A 1974-06-13 1975-06-04 Digital ekosperr SE396868B (sv)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
US05/479,061 US3937907A (en)	1974-06-13	1974-06-13	Digital echo suppressor

Publications (2)

Publication Number	Publication Date
SE7506359L SE7506359L (sv)	1975-12-15
SE396868B true SE396868B (sv)	1977-10-03

Family

ID=23902505

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
SE7506359A SE396868B (sv)	1974-06-13	1975-06-04	Digital ekosperr

Country Status (11)

Country	Link
US (1)	US3937907A (xx)
JP (1)	JPS516413A (xx)
BE (1)	BE830202A (xx)
BR (1)	BR7504046A (xx)
CA (1)	CA1036735A (xx)
DE (1)	DE2526503A1 (xx)
FR (1)	FR2275075A1 (xx)
GB (1)	GB1495638A (xx)
IT (1)	IT1036264B (xx)
NL (1)	NL7506964A (xx)
SE (1)	SE396868B (xx)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
JPS5338491B2 (xx) *	1972-12-28	1978-10-16
US4051332A (en) *	1973-08-20	1977-09-27	Nippon Telegraph And Telephone Public Corporation	Multiplex digital echo suppression system
US4024358A (en) *	1975-10-31	1977-05-17	Communications Satellite Corporation (Comsat)	Adaptive echo canceller using differential pulse code modulation encoding
US4088851A (en) *	1976-04-28	1978-05-09	Wescom, Inc.	Digital echo suppressor
JPS5355857A (en) *	1976-10-29	1978-05-20	Ishikawajima Harima Heavy Ind Co Ltd	Climbing crane
US4115668A (en) *	1977-04-29	1978-09-19	Harvey Hubbell Incorporated	Echo suppressor with SF transmission and regeneration
FR2404969A1 (fr) *	1977-10-03	1979-04-27	Cit Alcatel	Demi-suppresseur d'echo pour une ligne telephonique a quatre fils
US4123626A (en) *	1977-11-23	1978-10-31	Northern Telecom Limited	Digital echo attenuation circuit for a telephone system
US4110560A (en) *	1977-11-23	1978-08-29	Gte Sylvania Incorporated	Communication apparatus
US4215252A (en) *	1978-09-27	1980-07-29	Communications Satellite Corporation	Video teleconference audio echo control unit
JPS5647889U (xx) *	1980-08-22	1981-04-28
DE4119963A1 (de) *	1991-06-18	1992-12-24	Philips Patentverwaltung	Echokompensator
KR20090105471A (ko) *	2008-04-02	2009-10-07	엘지전자 주식회사	왕복동모터 및 이를 채용한 왕복동식 압축기
RU210266U1 (ru) *	2021-05-04	2022-04-05	Федеральное государственное бюджетное образовательное учреждение высшего образования "Сибирский государственный университет телекоммуникаций и информатики" (СибГУТИ)	Универсальный инвариантный эхокомпенсатор для нелинейного эхотракта

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US3562448A (en) *	1968-06-21	1971-02-09	Bell Telephone Labor Inc	Common control digital echo suppression
US3673355A (en) *	1970-09-02	1972-06-27	Bell Telephone Labor Inc	Common control digital echo suppression
US3821494A (en) *	1972-07-14	1974-06-28	Ibm	Digital echo suppressor with direct table look up control by delta coded signals
US3823275A (en) *	1972-08-10	1974-07-09	Bell Telephone Labor Inc	Common control digital echo suppressor

1974
- 1974-06-13 US US05/479,061 patent/US3937907A/en not_active Expired - Lifetime
1975
- 1975-05-16 CA CA227,190A patent/CA1036735A/en not_active Expired
- 1975-05-21 GB GB21704/75A patent/GB1495638A/en not_active Expired
- 1975-06-03 JP JP50066976A patent/JPS516413A/ja active Pending
- 1975-06-04 SE SE7506359A patent/SE396868B/xx unknown
- 1975-06-10 IT IT68492/75A patent/IT1036264B/it active
- 1975-06-11 NL NL7506964A patent/NL7506964A/xx not_active Application Discontinuation
- 1975-06-11 FR FR7518287A patent/FR2275075A1/fr not_active Withdrawn
- 1975-06-12 BR BR4780/75D patent/BR7504046A/pt unknown
- 1975-06-13 BE BE157296A patent/BE830202A/xx unknown
- 1975-06-13 DE DE19752526503 patent/DE2526503A1/de not_active Withdrawn

Also Published As

Publication number	Publication date
AU8153875A (en)	1976-12-02
IT1036264B (it)	1979-10-30
GB1495638A (en)	1977-12-21
BE830202A (xx)	1975-10-01
BR7504046A (pt)	1976-07-06
CA1036735A (en)	1978-08-15
DE2526503A1 (de)	1976-01-02
US3937907A (en)	1976-02-10
NL7506964A (nl)	1975-12-16
FR2275075A1 (fr)	1976-01-09
SE7506359L (sv)	1975-12-15
JPS516413A (en)	1976-01-20

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