JPH0252915B2 - - Google Patents

Info

Publication number: JPH0252915B2
Authority: JP; Japan
Prior art keywords: telephone; circuit; supply voltage; signal; incoming
Prior art date: 1984-05-14
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

JP59095923A

Other languages

English (en)

Japanese (ja)

Other versions

JPS60239196A (ja

Inventor

Nobuo Matoba

Shohei Uchino

Hisanori Suzuki

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.)

Panasonic Holdings Corp

Original Assignee

Matsushita Electric Industrial Co Ltd

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.)

1984-05-14

Filing date

1984-05-14

Publication date

1990-11-15

1984-05-14 Application filed by Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd

1984-05-14 Priority to JP59095923A priority Critical patent/JPS60239196A/ja

1985-11-28 Publication of JPS60239196A publication Critical patent/JPS60239196A/ja

1990-11-15 Publication of JPH0252915B2 publication Critical patent/JPH0252915B2/ja

Status Granted legal-status Critical Current

Links

230000005540 biological transmission Effects 0.000 claims description 3
239000003990 capacitor Substances 0.000 description 15
230000008878 coupling Effects 0.000 description 8
238000010168 coupling process Methods 0.000 description 8
238000005859 coupling reaction Methods 0.000 description 8
238000001514 detection method Methods 0.000 description 4
238000010586 diagram Methods 0.000 description 4
230000007274 generation of a signal involved in cell-cell signaling Effects 0.000 description 4
230000000737 periodic effect Effects 0.000 description 2
230000003213 activating effect Effects 0.000 description 1
230000002238 attenuated effect Effects 0.000 description 1
230000000694 effects Effects 0.000 description 1
238000005516 engineering process Methods 0.000 description 1
238000000605 extraction Methods 0.000 description 1

Classifications

- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M9/00—Arrangements for interconnection not involving centralised switching
- H04M9/08—Two-way loud-speaking telephone systems with means for conditioning the signal, e.g. for suppressing echoes for one or both directions of traffic
- 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
- H04Q1/38—Signalling arrangements; Manipulation of signalling currents using combinations of direct currents of different amplitudes or polarities over line conductors or combination of line conductors

Landscapes

Engineering & Computer Science (AREA)
Signal Processing (AREA)
Computer Networks & Wireless Communication (AREA)
Sub-Exchange Stations And Push- Button Telephones (AREA)

JP59095923A 1984-05-14 1984-05-14 構内交換装置 Granted JPS60239196A (ja)

Priority Applications (1)

Application Number	Priority Date	Filing Date	Title
JP59095923A JPS60239196A (ja)	1984-05-14	1984-05-14	構内交換装置

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
JP59095923A JPS60239196A (ja)	1984-05-14	1984-05-14	構内交換装置

Publications (2)

Publication Number	Publication Date
JPS60239196A JPS60239196A (ja)	1985-11-28
JPH0252915B2 true JPH0252915B2 (fi)	1990-11-15

Family

ID=14150797

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
JP59095923A Granted JPS60239196A (ja)	1984-05-14	1984-05-14	構内交換装置

Country Status (1)

Country	Link
JP (1)	JPS60239196A (fi)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
JPH04100400A (ja) *	1990-08-17	1992-04-02	Meisei Electric Co Ltd	スピーカ放出音の送出方式

1984
- 1984-05-14 JP JP59095923A patent/JPS60239196A/ja active Granted

Also Published As

Publication number	Publication date
JPS60239196A (ja)	1985-11-28

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