CH372350A - Receiving device for audio frequency signals - Google Patents

Receiving device for audio frequency signals

Info

Publication number: CH372350A
Authority: CH; Switzerland
Prior art keywords: receiving device; audio frequency; frequency signals; signals; audio
Prior art date: 1957-08-06

Application number

CH6230758A

Other languages

German (de)

Inventor

Victor Martens Jean

Original Assignee

Standard Telephon & Radio Ag

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.)

1957-08-06

Filing date

1958-07-28

Publication date

1963-10-15

1958-07-28 Application filed by Standard Telephon & Radio Ag filed Critical Standard Telephon & Radio Ag

1963-10-15 Publication of CH372350A publication Critical patent/CH372350A/en

Classifications

- 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
- H04Q1/44—Signalling arrangements; Manipulation of signalling currents using alternate current
- H04Q1/444—Signalling arrangements; Manipulation of signalling currents using alternate current with voice-band signalling frequencies
- H04Q1/446—Signalling arrangements; Manipulation of signalling currents using alternate current with voice-band signalling frequencies using one signalling frequency
- H04Q1/4465—Signalling arrangements; Manipulation of signalling currents using alternate current with voice-band signalling frequencies using one signalling frequency the same frequency being used for all signalling information, e.g. A.C. nr.9 system

Landscapes

Engineering & Computer Science (AREA)
Computer Networks & Wireless Communication (AREA)

CH6230758A 1957-08-06 1958-07-28 Receiving device for audio frequency signals CH372350A (en)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
NL219653		1957-08-06

Publications (1)

Publication Number	Publication Date
CH372350A true CH372350A (en)	1963-10-15

Family

ID=29244857

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
CH6230758A CH372350A (en)	1957-08-06	1958-07-28	Receiving device for audio frequency signals

Country Status (1)

Country	Link
CH (1)	CH372350A (en)

1958
- 1958-07-28 CH CH6230758A patent/CH372350A/en unknown

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