CA1105162A - Circuit telephonique - Google Patents

Circuit telephonique

Info

Publication number: CA1105162A
Authority: CA; Canada
Prior art keywords: tip; differential amplifier; output; input; amplifier means
Prior art date: 1978-02-01
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.): Expired

Application number

CA296,137A

Other languages

English (en)

Inventor

Michael C.J. Cowpland

Patrick R. Beirne

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.)

Microsemi Semiconductor ULC

Original Assignee

Individual

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.)

1979-06-23

Filing date

1978-02-01

Publication date

1981-07-14

1978-02-01 Application filed by Individual filed Critical Individual

1978-05-09 Priority to JP53055443A priority Critical patent/JPS5921237B2/ja

1978-05-17 Priority to US05/906,772 priority patent/US4178485A/en

1978-06-03 Priority to DE2824468A priority patent/DE2824468C2/de

1978-07-24 Priority to FR7822336A priority patent/FR2416600B1/fr

1978-12-15 Priority to GB7848666A priority patent/GB2014398B/en

1979-06-27 Priority to FR7917277A priority patent/FR2460076B2/fr

1979-08-02 Priority to US06/062,989 priority patent/US4281219A/en

1981-02-20 Priority to CA000371449A priority patent/CA1117232A/fr

1981-07-14 Application granted granted Critical

1981-07-14 Publication of CA1105162A publication Critical patent/CA1105162A/fr

1982-01-12 Priority to GB08200788A priority patent/GB2106345B/en

1982-07-15 Priority to JP57124279A priority patent/JPS5853556B2/ja

Status Expired legal-status Critical Current

Links

239000003990 capacitor Substances 0.000 claims description 10
230000002401 inhibitory effect Effects 0.000 claims 1
230000002457 bidirectional effect Effects 0.000 abstract description 6
101000610118 Homo sapiens Pre-B-cell leukemia transcription factor 4 Proteins 0.000 abstract 1
102100040167 Pre-B-cell leukemia transcription factor 4 Human genes 0.000 abstract 1
239000011159 matrix material Substances 0.000 description 6
230000009467 reduction Effects 0.000 description 3
238000004804 winding Methods 0.000 description 3
230000003321 amplification Effects 0.000 description 2
230000008859 change Effects 0.000 description 2
150000002500 ions Chemical class 0.000 description 2
238000012986 modification Methods 0.000 description 2
230000004048 modification Effects 0.000 description 2
238000003199 nucleic acid amplification method Methods 0.000 description 2
241001481828 Glyptocephalus cynoglossus Species 0.000 description 1
101100256737 Neurospora crassa (strain ATCC 24698 / 74-OR23-1A / CBS 708.71 / DSM 1257 / FGSC 987) hlm-1 gene Proteins 0.000 description 1
101150062207 SET9 gene Proteins 0.000 description 1
241000289690 Xenarthra Species 0.000 description 1
230000009471 action Effects 0.000 description 1
230000002238 attenuated effect Effects 0.000 description 1
230000005540 biological transmission Effects 0.000 description 1
230000015572 biosynthetic process Effects 0.000 description 1
230000000903 blocking effect Effects 0.000 description 1
150000001768 cations Chemical class 0.000 description 1
238000006243 chemical reaction Methods 0.000 description 1
238000010586 diagram Methods 0.000 description 1
230000009977 dual effect Effects 0.000 description 1
230000000694 effects Effects 0.000 description 1
230000005669 field effect Effects 0.000 description 1
238000001914 filtration Methods 0.000 description 1
230000014509 gene expression Effects 0.000 description 1
230000003993 interaction Effects 0.000 description 1
230000002452 interceptive effect Effects 0.000 description 1
PNDPGZBMCMUPRI-UHFFFAOYSA-N iodine Chemical compound II PNDPGZBMCMUPRI-UHFFFAOYSA-N 0.000 description 1
230000003287 optical effect Effects 0.000 description 1
230000003389 potentiating effect Effects 0.000 description 1
QHGVXILFMXYDRS-UHFFFAOYSA-N pyraclofos Chemical compound C1=C(OP(=O)(OCC)SCCC)C=NN1C1=CC=C(Cl)C=C1 QHGVXILFMXYDRS-UHFFFAOYSA-N 0.000 description 1
230000008054 signal transmission Effects 0.000 description 1
230000000007 visual effect Effects 0.000 description 1

Classifications

- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M3/00—Automatic or semi-automatic exchanges
- H04M3/40—Applications of speech amplifiers

Landscapes

Engineering & Computer Science (AREA)
Signal Processing (AREA)
Interface Circuits In Exchanges (AREA)
Devices For Supply Of Signal Current (AREA)
Amplifiers (AREA)

CA296,137A 1978-02-01 1978-02-01 Circuit telephonique Expired CA1105162A (fr)

Priority Applications (10)

Application Number	Priority Date	Filing Date	Title
JP53055443A JPS5921237B2 (ja)	1978-02-01	1978-05-09	電話ライン回路
US05/906,772 US4178485A (en)	1978-02-01	1978-05-17	Transformerless telephone line circuit
DE2824468A DE2824468C2 (de)	1978-02-01	1978-06-03	Telefonverstärkerschaltung
FR7822336A FR2416600B1 (fr)	1978-02-01	1978-07-24	Circuit de ligne telephonique
GB7848666A GB2014398B (en)	1978-02-01	1978-12-15	Telephone line circuit
FR7917277A FR2460076B2 (fr)	1978-02-01	1979-06-27	Circuit de ligne telephonique
US06/062,989 US4281219A (en)	1978-02-01	1979-08-02	Telephone line circuit
CA000371449A CA1117232A (fr)	1978-02-01	1981-02-20	Circuit de ligne telephonique
GB08200788A GB2106345B (en)	1978-02-01	1982-01-12	Telephone line circuit
JP57124279A JPS5853556B2 (ja)	1978-02-01	1982-07-15	電話ライン回路用増幅回路

Applications Claiming Priority (2)

Application Number	Priority Date	Filing Date	Title
DEP2925444.2		1979-06-23
DE19792925444 DE2925444C2 (de)	1979-06-23	1979-06-23	Telefonverstärkerschaltung

Publications (1)

Publication Number	Publication Date
CA1105162A true CA1105162A (fr)	1981-07-14

Family

ID=6074008

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
CA296,137A Expired CA1105162A (fr)	1978-02-01	1978-02-01	Circuit telephonique

Country Status (2)

Country	Link
CA (1)	CA1105162A (fr)
DE (1)	DE2925444C2 (fr)

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US3889072A (en) *	1973-10-19	1975-06-10	Itt	Bi-directional amplification apparatus

1978
- 1978-02-01 CA CA296,137A patent/CA1105162A/fr not_active Expired
1979
- 1979-06-23 DE DE19792925444 patent/DE2925444C2/de not_active Expired

Also Published As

Publication number	Publication date
DE2925444C2 (de)	1985-07-04
DE2925444A1 (de)	1981-01-15

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Legal Events

Date	Code	Title	Description
1998-07-14	MKEX	Expiry