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)

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 (fr)	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 (fr)
ES (1)	ES376995A1 (fr)
FR (1)	FR2033184A1 (fr)

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- 1969-02-28 FR FR6905335A patent/FR2033184A1/fr not_active Withdrawn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 (fr)	1970-12-04

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Legal Events

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