NL173230B - Apparatus for transmitting voice signals modulated by a delta modulator as well as binary dialing and switching signals generated by a registration generator in information transmission systems. - Google Patents
Apparatus for transmitting voice signals modulated by a delta modulator as well as binary dialing and switching signals generated by a registration generator in information transmission systems.Info
- Publication number
- NL173230B NL173230B NL7308207A NL7308207A NL173230B NL 173230 B NL173230 B NL 173230B NL 7308207 A NL7308207 A NL 7308207A NL 7308207 A NL7308207 A NL 7308207A NL 173230 B NL173230 B NL 173230B
- Authority
- NL
- Netherlands
- Prior art keywords
- dialing
- binary
- well
- information transmission
- transmission systems
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q11/00—Selecting arrangements for multiplex systems
- H04Q11/04—Selecting arrangements for multiplex systems for time-division multiplexing
-
- 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
- H04Q1/39—Signalling arrangements; Manipulation of signalling currents using coded pulse groups
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Telephonic Communication Services (AREA)
- Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19722228875 DE2228875C3 (en) | 1972-06-14 | 1972-06-14 | Circuit arrangement for the transmission of dialing and switching indicators in message transmission systems with delta modulation |
Publications (3)
Publication Number | Publication Date |
---|---|
NL7308207A NL7308207A (en) | 1973-12-18 |
NL173230B true NL173230B (en) | 1983-07-18 |
NL173230C NL173230C (en) | 1983-12-16 |
Family
ID=5847695
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
NL7308207A NL173230C (en) | 1972-06-14 | 1973-06-13 | Apparatus for transmitting voice signals modulated by a delta modulator as well as binary dialing and switching signals generated by a registration generator in information transmission systems. |
Country Status (4)
Country | Link |
---|---|
DE (1) | DE2228875C3 (en) |
GB (1) | GB1438513A (en) |
IT (1) | IT989080B (en) |
NL (1) | NL173230C (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
SE404982B (en) * | 1977-12-22 | 1978-11-06 | Ericsson Telefon Ab L M | METHOD AND DEVICE FOR TRANSMITTING DIGITAL INFORMATION IN A TELEPHONE SYSTEM |
NL7905968A (en) * | 1979-08-03 | 1981-02-05 | Philips Nv | METHOD FOR DETECTING A DIGITAL CODE WORD AND CODE DETECTOR FOR CARRYING OUT THE METHOD |
DE2937937A1 (en) * | 1979-09-18 | 1981-04-02 | Siemens AG, 1000 Berlin und 8000 München | Supervising telephone circuit using digital information transmission - employing measured signal level to determine transmission state and clear circuit |
-
1972
- 1972-06-14 DE DE19722228875 patent/DE2228875C3/en not_active Expired
-
1973
- 1973-06-06 GB GB2706573A patent/GB1438513A/en not_active Expired
- 1973-06-12 IT IT2527173A patent/IT989080B/en active
- 1973-06-13 NL NL7308207A patent/NL173230C/en not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
NL173230C (en) | 1983-12-16 |
AU5676473A (en) | 1974-12-12 |
DE2228875C3 (en) | 1980-03-06 |
GB1438513A (en) | 1976-06-09 |
DE2228875B2 (en) | 1979-07-05 |
DE2228875A1 (en) | 1974-01-03 |
IT989080B (en) | 1975-05-20 |
NL7308207A (en) | 1973-12-18 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
BC | A request for examination has been filed | ||
SNR | Assignments of patents or rights arising from examined patent applications |
Owner name: AEG-TELEFUNKEN NACHRICHTENTECHNIK GMBH |
|
V1 | Lapsed because of non-payment of the annual fee |