NL154386B - SIGNALING SYSTEM. - Google Patents

SIGNALING SYSTEM.

Info

Publication number: NL154386B
Authority: NL; Netherlands
Prior art keywords: signaling system; signaling
Prior art date: 1972-04-17

Application number

NL7205132A

Other languages

Dutch (nl)

Other versions

NL7205132A (en

Inventor

Henri Johan Coumou

Derk Van Der Dr Ir Houwen

Original Assignee

Nederlanden Staat

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.)

1972-04-17

Filing date

1972-04-17

Publication date

1977-08-15

1972-04-17 Application filed by Nederlanden Staat filed Critical Nederlanden Staat

1972-04-17 Priority to NL7205132A priority Critical patent/NL154386B/en

1973-04-11 Priority to DE19732318172 priority patent/DE2318172C3/en

1973-04-13 Priority to SE7305320A priority patent/SE380701B/en

1973-04-17 Priority to IT4949273A priority patent/IT980245B/en

1973-04-17 Priority to FR7313951A priority patent/FR2180901B1/fr

1973-10-19 Publication of NL7205132A publication Critical patent/NL7205132A/xx

1977-08-15 Publication of NL154386B publication Critical patent/NL154386B/en

Classifications

- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04J—MULTIPLEX COMMUNICATION
- H04J3/00—Time-division multiplex systems
- H04J3/02—Details
- H04J3/12—Arrangements providing for calling or supervisory signals
- 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
- H04Q1/45—Signalling arrangements; Manipulation of signalling currents using alternate current with voice-band signalling frequencies using multi-frequency signalling
- H04Q1/457—Signalling arrangements; Manipulation of signalling currents using alternate current with voice-band signalling frequencies using multi-frequency signalling with conversion of multifrequency signals into digital signals
- H04Q1/4575—Signalling arrangements; Manipulation of signalling currents using alternate current with voice-band signalling frequencies using multi-frequency signalling with conversion of multifrequency signals into digital signals which are transmitted in digital form

Landscapes

Engineering & Computer Science (AREA)
Computer Networks & Wireless Communication (AREA)
Signal Processing (AREA)
Compression, Expansion, Code Conversion, And Decoders (AREA)
Digital Transmission Methods That Use Modulated Carrier Waves (AREA)

NL7205132A 1972-04-17 1972-04-17 SIGNALING SYSTEM. NL154386B (en)

Priority Applications (5)

Application Number	Priority Date	Filing Date	Title
NL7205132A NL154386B (en)	1972-04-17	1972-04-17	SIGNALING SYSTEM.
DE19732318172 DE2318172C3 (en)	1972-04-17	1973-04-11	Method for generating digitized code characters when dialing multiple frequency codes in telecommunications, in particular telephone systems
SE7305320A SE380701B (en)	1972-04-17	1973-04-13	SYSTEM FOR DIGITALIZING AN MFC SIGNAL.
IT4949273A IT980245B (en)	1972-04-17	1973-04-17	TELEPHONE SIGNALING SYSTEM
FR7313951A FR2180901B1 (en)	1972-04-17	1973-04-17

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
NL7205132A NL154386B (en)	1972-04-17	1972-04-17	SIGNALING SYSTEM.

Publications (2)

Publication Number	Publication Date
NL7205132A NL7205132A (en)	1973-10-19
NL154386B true NL154386B (en)	1977-08-15

Family

ID=19815859

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
NL7205132A NL154386B (en)	1972-04-17	1972-04-17	SIGNALING SYSTEM.

Country Status (5)

Country	Link
DE (1)	DE2318172C3 (en)
FR (1)	FR2180901B1 (en)
IT (1)	IT980245B (en)
NL (1)	NL154386B (en)
SE (1)	SE380701B (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
NL177169B (en) *	1978-09-08	1985-03-01	Nederlanden Staat	APPARATUS FOR DETERMINING THE PRESENCE OF ONE OR MORE OF A NUMBER OF FREQUENCIES IN PULSE CODE MODULATED SIGNALS.
AT374325B (en) *	1980-04-18	1984-04-10	Siemens Ag Oesterreich	DEVICE FOR GENERATING TWO ELECTRIC VIBRATIONS OF DIFFERENT FREQUENCIES, IN PARTICULAR FOR GENERATING CODE-CHARACTERS FOR MULTI-FREQUENCY CODE SELECTION
US4620294A (en) *	1983-09-09	1986-10-28	Cts Corporation	Digital signal processor modem
US4599583A (en) *	1983-11-19	1986-07-08	Fujitsu Limited	Mixed dual frequency generating system
DE4408323C2 (en) *	1994-03-11	1999-03-11	Siemens Ag	Method for generating a digital sinusoidal signal with a predetermined sampling rate and circuit arrangement for carrying out the method

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
NL267387A (en) *	1960-08-23

1972
- 1972-04-17 NL NL7205132A patent/NL154386B/en not_active IP Right Cessation
1973
- 1973-04-11 DE DE19732318172 patent/DE2318172C3/en not_active Expired
- 1973-04-13 SE SE7305320A patent/SE380701B/en unknown
- 1973-04-17 IT IT4949273A patent/IT980245B/en active
- 1973-04-17 FR FR7313951A patent/FR2180901B1/fr not_active Expired

Also Published As

Publication number	Publication date
IT980245B (en)	1974-09-30
FR2180901A1 (en)	1973-11-30
DE2318172C3 (en)	1975-09-25
NL7205132A (en)	1973-10-19
DE2318172B2 (en)	1975-02-20
SE380701B (en)	1975-11-10
FR2180901B1 (en)	1979-03-30
DE2318172A1 (en)	1973-10-25

Publication	Publication Date	Title
NL7507238A (en)	1976-12-21	SIGNALING SYSTEM.
NL169017C (en)	1982-05-17	COMMUNICATION SYSTEM.
SE386338B (en)	1976-08-02	COMMUNICATION SYSTEM.
BE781867A (en)	1972-10-10	DRAADKRAT.
CH549910A (en)	1974-05-31	RADIO SYSTEM.
NO138310C (en)	1978-08-16	PULSE SATENGER SYSTEM.
BE781886A (en)	1972-07-31	FLESSENKRAT.
NL7311811A (en)	1975-03-04	NOTATION SYSTEM.
NL169016C (en)	1982-05-17	COMMUNICATION SYSTEM.
DK131011B (en)	1975-05-20	Kimlås.
NL168973C (en)	1982-05-17	BROADCASTING SYSTEM.
NL149878B (en)	1976-06-15	PROFILE SYSTEM CONSTRUCTION.
SE394140B (en)	1977-06-06	ZONTENDROR.
NL154386B (en)	1977-08-15	SIGNALING SYSTEM.
ATA230773A (en)	1976-03-15	RAILWAY SIGNALING SYSTEM
NL155662B (en)	1978-01-16	PROJECTOR SYSTEM.
NL7312548A (en)	1975-03-14	MULTIFREQUENT SIGNALING SYSTEM.
NL181084C (en)	1987-06-16	REPRODUCTION SYSTEM.
BE785548A (en)	1972-10-16	CONNECTION.
NL155161B (en)	1977-11-15	RADIO SYSTEM.
NL156258B (en)	1978-03-15	COMMUNICATION SYSTEM.
IT981094B (en)	1974-10-10	SIGNALING SYSTEM
ES198319Y (en)	1975-11-01	CONNECTION ARRANGEMENT.
NO137802C (en)	1978-04-26	TRANSFER SYSTEM.
BE789824A (en)	1973-04-06	BIGOUDI.

Legal Events

Date	Code	Title	Description
1984-08-16	V1	Lapsed because of non-payment of the annual fee
1992-04-30	NL80	Abbreviated name of patent owner mentioned of already nullified patent	Owner name: P T T