SE8001541L - Treledarstrommatningskrets for telefonapparat - Google Patents

Treledarstrommatningskrets for telefonapparat

Info

Publication number: SE8001541L
Authority: SE; Sweden
Prior art keywords: circuit; terminal; input; electronic switch; input terminal
Prior art date: 1979-07-03

Application number

SE8001541A

Other languages

Unknown language ( )

English (en)

Other versions

SE450070B (sv

Inventor

T Naganawa

M Yoshitoshi

K Kato

Original Assignee

Nippon Telegraph & Telephone

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.)

1979-07-03

Filing date

1980-02-28

Publication date

1981-01-04

1980-02-28 Application filed by Nippon Telegraph & Telephone filed Critical Nippon Telegraph & Telephone

1981-01-04 Publication of SE8001541L publication Critical patent/SE8001541L/sv

1987-06-01 Publication of SE450070B publication Critical patent/SE450070B/sv

Classifications

- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M19/00—Current supply arrangements for telephone systems
- H04M19/08—Current supply arrangements for telephone systems with current supply sources at the substations

Landscapes

Engineering & Computer Science (AREA)
Signal Processing (AREA)
Devices For Supply Of Signal Current (AREA)
Protection Of Static Devices (AREA)

SE8001541A 1979-07-03 1980-02-28 Trepolig strommatningskrets for telefonapparat SE450070B (sv)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
JP54083438A JPS596549B2 (ja)	1979-07-03	1979-07-03	電話機用３端子電源回路

Publications (2)

Publication Number	Publication Date
SE8001541L true SE8001541L (sv)	1981-01-04
SE450070B SE450070B (sv)	1987-06-01

Family

ID=13802427

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
SE8001541A SE450070B (sv)	1979-07-03	1980-02-28	Trepolig strommatningskrets for telefonapparat

Country Status (8)

Country	Link
US (1)	US4319094A (sv)
JP (1)	JPS596549B2 (sv)
CA (1)	CA1132735A (sv)
DE (1)	DE3008259C2 (sv)
DK (1)	DK155068C (sv)
FR (1)	FR2460576A1 (sv)
GB (1)	GB2052213B (sv)
SE (1)	SE450070B (sv)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
FR2500691A1 (fr) *	1981-02-23	1982-08-27	Pays Gerard	Cellule d'alimentation electrique a redressement et regulation, notamment pour sonneries electroniques
DE3238416A1 (de) *	1982-10-16	1984-04-19	Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt	Schaltungsanordnung zum speisen einer eine konstante betriebsspannung liefernden stromversorgungseinrichtung
FR2549667B1 (fr) *	1983-07-22	1985-10-04	Thomson Csf	Circuit d'alimentation regulee notamment pour poste telephonique
DE3334988A1 (de) *	1983-09-24	1985-04-18	Elmeg Elektro-Mechanik Gmbh, 3150 Peine	Schaltungsanordnung zur speisung von fernsprecheinrichtungen aus der leitung
US5125077A (en) *	1983-11-02	1992-06-23	Microsoft Corporation	Method of formatting data from a mouse
JPS6328995U (sv) *	1986-08-11	1988-02-25
SE455749B (sv) *	1986-12-09	1988-08-01	Ericsson Telefon Ab L M	Anordning vid en hogtalareforsedd telefonapparat for att effektforsorja en till hogtalaren ansluten hogtalareforsterkare
DE3826765A1 (de) *	1988-08-04	1990-02-08	Deutsche Telephonwerk Kabel	Schaltungsanordnung zur speisung elektronischer komponenten in kommunikations-endgeraeten ueber die anschlussleitungen
JPH0537603U (ja) *	1991-10-31	1993-05-21	マルヤス工業株式会社	燃料配管用プロテクター
JP5015442B2 (ja) *	2005-10-11	2012-08-29	ローム株式会社	電流検出回路およびそれを用いた受光装置ならびに電子機器
US8134106B2 (en)	2005-10-11	2012-03-13	Rohm Co., Ltd.	Current detection circuit

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
JPS495645B1 (sv) *	1970-02-07	1974-02-08
CA930488A (en) *	1971-08-27	1973-07-17	C. J. Cowpland Michael	Power supply
CH592392A5 (en) *	1975-09-30	1977-10-31	Sodeco Compteurs De Geneve	Telephone circuit without inductances - couples microphone amplifiers output to subscriber line and consists of DC feedback transistor in series with Zener diode

1979
- 1979-07-03 JP JP54083438A patent/JPS596549B2/ja not_active Expired
1980
- 1980-02-25 US US06/124,632 patent/US4319094A/en not_active Expired - Lifetime
- 1980-02-26 GB GB8006359A patent/GB2052213B/en not_active Expired
- 1980-02-28 SE SE8001541A patent/SE450070B/sv not_active IP Right Cessation
- 1980-03-03 CA CA346,828A patent/CA1132735A/en not_active Expired
- 1980-03-03 FR FR8004739A patent/FR2460576A1/fr active Granted
- 1980-03-04 DE DE3008259A patent/DE3008259C2/de not_active Expired
- 1980-03-04 DK DK091480A patent/DK155068C/da not_active IP Right Cessation

Also Published As

Publication number	Publication date
CA1132735A (en)	1982-09-28
US4319094A (en)	1982-03-09
FR2460576B1 (sv)	1984-11-30
DE3008259C2 (de)	1982-10-21
DE3008259A1 (de)	1981-01-08
DK155068B (da)	1989-01-30
SE450070B (sv)	1987-06-01
FR2460576A1 (fr)	1981-01-23
DK91480A (da)	1981-01-04
JPS596549B2 (ja)	1984-02-13
GB2052213A (en)	1981-01-21
JPS568956A (en)	1981-01-29
DK155068C (da)	1989-07-03
GB2052213B (en)	1983-07-27

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Legal Events

Date	Code	Title	Description
1995-01-31	NAL	Patent in force	Ref document number: 8001541-5 Format of ref document f/p: F
2000-05-15	NUG	Patent has lapsed	Ref document number: 8001541-5 Format of ref document f/p: F

Date

Code

Title

Description

1995-01-31

NAL

Patent in force

Ref document number: 8001541-5

Format of ref document f/p: F

2000-05-15

NUG

Patent has lapsed