CH512164A - Circuit de détection d'appel - Google Patents

Circuit de détection d'appel

Info

Publication number: CH512164A
Authority: CH; Switzerland
Prior art keywords: detection circuit; call detection; call; circuit; detection
Prior art date: 1969-02-28

Application number

CH245670A

Other languages

English (en)

French (fr)

Inventor

Regnier Albert

Depreux Robert

Original Assignee

Int 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.)

1969-02-28

Filing date

1970-02-20

Publication date

1971-08-31

1970-02-20 Application filed by Int Standard Electric Corp filed Critical Int Standard Electric Corp

1971-08-31 Publication of CH512164A publication Critical patent/CH512164A/fr

Links

238000001514 detection method Methods 0.000 title 1

Classifications

- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q3/00—Selecting arrangements

Landscapes

Engineering & Computer Science (AREA)
Computer Networks & Wireless Communication (AREA)
Interface Circuits In Exchanges (AREA)

CH245670A 1969-02-28 1970-02-20 Circuit de détection d'appel CH512164A (fr)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
FR6905335A FR2033184A1 (es)	1969-02-28	1969-02-28

Publications (1)

Publication Number	Publication Date
CH512164A true CH512164A (fr)	1971-08-31

Family

ID=9029792

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
CH245670A CH512164A (fr)	1969-02-28	1970-02-20	Circuit de détection d'appel

Country Status (3)

Country	Link
CH (1)	CH512164A (es)
ES (1)	ES376995A1 (es)
FR (1)	FR2033184A1 (es)

1969
- 1969-02-28 FR FR6905335A patent/FR2033184A1/fr not_active Withdrawn
1970
- 1970-02-20 CH CH245670A patent/CH512164A/fr not_active IP Right Cessation
- 1970-02-27 ES ES376995A patent/ES376995A1/es not_active Expired

Also Published As

Publication number	Publication date
ES376995A1 (es)	1972-05-16
FR2033184A1 (es)	1970-12-04

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Legal Events

Date	Code	Title	Description
1974-09-30	PL	Patent ceased