GB8319839D0 - Interface circuit - Google Patents

Interface circuit

Info

Publication number: GB8319839D0
Authority: GB; United Kingdom
Prior art keywords: interface circuit; interface; circuit
Prior art date: 1982-07-22
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.): Granted

Application number

GB838319839A

Other versions

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.)

International Standard Electric Corp

Original Assignee

International Standard Electric 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.)

1982-07-22

Filing date

1983-07-22

Publication date

1983-08-24

1983-07-22 Application filed by International Standard Electric Corp filed Critical International Standard Electric Corp

1983-08-24 Publication of GB8319839D0 publication Critical patent/GB8319839D0/en

1984-03-14 Publication of GB2126049A publication Critical patent/GB2126049A/en

1985-10-02 Application granted granted Critical

1985-10-02 Publication of GB2126049B publication Critical patent/GB2126049B/en

Status Expired legal-status Critical Current

Classifications

- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
- H04B1/40—Circuits
- H04B1/54—Circuits using the same frequency for two directions of communication
- H04B1/58—Hybrid arrangements, i.e. arrangements for transition from single-path two-direction transmission to single-direction transmission on each of two paths or vice versa
- H04B1/587—Hybrid arrangements, i.e. arrangements for transition from single-path two-direction transmission to single-direction transmission on each of two paths or vice versa using opto-couplers
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B14/00—Transmission systems not characterised by the medium used for transmission
- H04B14/02—Transmission systems not characterised by the medium used for transmission characterised by the use of pulse modulation
- H04B14/026—Transmission systems not characterised by the medium used for transmission characterised by the use of pulse modulation using pulse time characteristics modulation, e.g. width, position, interval
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M7/00—Arrangements for interconnection between switching centres
- H04M7/0096—Trunk circuits
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q1/00—Details of selecting apparatus or arrangements
- H04Q1/18—Electrical details
- H04Q1/30—Signalling arrangements; Manipulation of signalling currents
- H04Q1/50—Conversion between different kinds of signals

Landscapes

Engineering & Computer Science (AREA)
Computer Networks & Wireless Communication (AREA)
Signal Processing (AREA)
Devices For Supply Of Signal Current (AREA)
Amplifiers (AREA)
Interface Circuits In Exchanges (AREA)
Small-Scale Networks (AREA)

GB08319839A 1982-07-22 1983-07-22 Interface circuit Expired GB2126049B (en)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
AT283982A AT384337B (en)	1982-07-22	1982-07-22	INTERFACE SWITCHING WITH TWO-WIRE-FOUR-WIRE CONVERSION FOR TELEPHONE PABX SYSTEMS

Publications (3)

Publication Number	Publication Date
GB8319839D0 true GB8319839D0 (en)	1983-08-24
GB2126049A GB2126049A (en)	1984-03-14
GB2126049B GB2126049B (en)	1985-10-02

Family

ID=3541110

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
GB08319839A Expired GB2126049B (en)	1982-07-22	1983-07-22	Interface circuit

Country Status (9)

Country	Link
AT (1)	AT384337B (en)
AU (1)	AU1692883A (en)
BE (1)	BE897350A (en)
CH (1)	CH662023A5 (en)
DE (1)	DE3326037A1 (en)
ES (1)	ES524385A0 (en)
FI (1)	FI79431C (en)
GB (1)	GB2126049B (en)
MX (1)	MX154966A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
DE3841814C2 (en) *	1988-12-12	1995-05-24	Ferenc J Horvath	Connection circuit
ES2048683B1 (en) *	1992-11-19	1997-07-01	Univ Cordoba	OPTO-COUPLING SYSTEM OF ELECTRICAL DIGITAL SIGNALS FOR PROTECTION AND ISOLATION OF ELECTRONIC DEVICES FROM STATIONARY AND TRANSITORY OVERVOLTAGES.

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
FR2305080A1 (en) *	1975-03-20	1976-10-15	Jeumont Schneider	ELECTRONIC TERMINER
US4150260A (en) *	1975-06-18	1979-04-17	Hitachi, Ltd.	Subscriber's circuit for four-wire-system local switch
CH599731A5 (en) *	1976-03-02	1978-05-31	Ibm
US4142075A (en) *	1977-10-11	1979-02-27	Burr-Brown Research Corporation	Interface circuit and method for telephone extension lines
NL7802423A (en) *	1978-03-06	1979-09-10	Philips Nv	POWER SUPPLY FOR A LINE CURRENT.
CH641299A5 (en) *	1978-11-13	1984-02-15	Landis & Gyr Ag	Width-pause duration modulator for measurement purposes.

1982
- 1982-07-22 AT AT283982A patent/AT384337B/en not_active IP Right Cessation
1983
- 1983-07-14 MX MX19804083A patent/MX154966A/en unknown
- 1983-07-18 AU AU16928/83A patent/AU1692883A/en not_active Abandoned
- 1983-07-20 FI FI832645A patent/FI79431C/en not_active IP Right Cessation
- 1983-07-20 DE DE19833326037 patent/DE3326037A1/en active Granted
- 1983-07-21 CH CH399583A patent/CH662023A5/en not_active IP Right Cessation
- 1983-07-22 ES ES524385A patent/ES524385A0/en active Granted
- 1983-07-22 GB GB08319839A patent/GB2126049B/en not_active Expired
- 1983-07-22 BE BE2/60166A patent/BE897350A/en not_active IP Right Cessation

Also Published As

Publication number	Publication date
FI832645A0 (en)	1983-07-20
DE3326037A1 (en)	1984-01-26
AT384337B (en)	1987-10-27
FI79431C (en)	1989-12-11
DE3326037C2 (en)	1990-09-06
MX154966A (en)	1988-01-14
ES8500689A1 (en)	1984-08-01
AU1692883A (en)	1984-01-26
ATA283982A (en)	1987-03-15
FI832645A (en)	1984-01-23
GB2126049B (en)	1985-10-02
FI79431B (en)	1989-08-31
ES524385A0 (en)	1984-08-01
GB2126049A (en)	1984-03-14
CH662023A5 (en)	1987-08-31
BE897350A (en)	1984-01-23

Publication	Publication Date	Title
GB2130833B (en)	1986-08-28	Interface circuit
GB2102602B (en)	1985-08-07	Interface circuit
GB2101374B (en)	1985-04-11	Interface circuit
DE3378879D1 (en)	1989-02-09	Logical circuit
GB8316270D0 (en)	1983-07-20	Circuit arrangement
GB8331096D0 (en)	1983-12-29	Electrical circuits
EP0107028A3 (en)	1985-08-21	Circuit arrangement
GB8309726D0 (en)	1983-05-18	Integrated circuit arrangement
GB8322131D0 (en)	1983-09-21	Circuits
JPS5760779A (en)	1982-04-12	Integrated interface circuit
GB8333133D0 (en)	1984-01-18	Sample-&-hold circuit
GB8327876D0 (en)	1983-11-16	Delay circuit
GB8328851D0 (en)	1983-11-30	Circuit arrangement
GB8305972D0 (en)	1983-04-07	Circuit
GB8304856D0 (en)	1983-03-23	Circuit arrangement
GB8322814D0 (en)	1983-09-28	Circuit
GB8328152D0 (en)	1983-11-23	Interface circuits
GB8312055D0 (en)	1983-06-08	Circuit arrangement
GB8328605D0 (en)	1983-11-30	Integrated circuit
JPS5723146A (en)	1982-02-06	Interface circuit
GB8505680D0 (en)	1985-04-03	Circuit arrangement
GB8311645D0 (en)	1983-06-02	Circuit
GB8313517D0 (en)	1983-06-22	Circuit
KR910006512B1 (en)	1991-08-27	Integrated circuit
GB8306208D0 (en)	1983-04-13	Circuits

Legal Events

Date	Code	Title	Description
1987-11-04	732	Registration of transactions, instruments or events in the register (sect. 32/1977)
1989-03-15	PCNP	Patent ceased through non-payment of renewal fee