BE669624A - - Google Patents
Info
- Publication number
- BE669624A BE669624A BE669624DA BE669624A BE 669624 A BE669624 A BE 669624A BE 669624D A BE669624D A BE 669624DA BE 669624 A BE669624 A BE 669624A
- Authority
- BE
- Belgium
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q3/00—Selecting arrangements
-
- 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
- H04Q1/38—Signalling arrangements; Manipulation of signalling currents using combinations of direct currents of different amplitudes or polarities over line conductors or combination of line conductors
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Interface Circuits In Exchanges (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL6410711A NL6410711A (en:Method) | 1964-09-15 | 1964-09-15 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE669624A true BE669624A (en:Method) |
Family
ID=19791015
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE669624D BE669624A (en:Method) | 1964-09-15 |
Country Status (11)
| Country | Link |
|---|---|
| US (1) | US3456083A (en:Method) |
| JP (1) | JPS4119444B1 (en:Method) |
| AT (1) | AT254284B (en:Method) |
| BE (1) | BE669624A (en:Method) |
| CH (1) | CH434389A (en:Method) |
| DE (1) | DE1279775B (en:Method) |
| DK (1) | DK114001B (en:Method) |
| FR (1) | FR1453530A (en:Method) |
| GB (1) | GB1086648A (en:Method) |
| NL (1) | NL6410711A (en:Method) |
| SE (1) | SE346194B (en:Method) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2098898A5 (en:Method) * | 1970-07-30 | 1972-03-10 | Cit Alcatel | |
| US4035583A (en) * | 1976-05-03 | 1977-07-12 | Gte Automatic Electric Laboratories Incorporated | Method to apply and disconnect a 16 KHz signal to a telephone line without producing clicks |
| DE2852488C2 (de) * | 1978-12-05 | 1982-05-06 | Standard Elektrik Lorenz Ag, 7000 Stuttgart | Schaltungsanordnung zur Auswertung von codierten Gleichstromtastwahlkennzeichen in Fernsprechanlagen mit unterschiedlich langen Teilnehneranschlußleitungen |
| CA1114536A (en) * | 1978-12-11 | 1981-12-15 | William B. Kiss | Ringing generator |
| DE3036801C2 (de) * | 1980-09-30 | 1982-08-26 | Ritto-Werk Loh GmbH & Co KG, 6348 Herborn | Schaltungsanordnung zur Übertragung von Gleichstrom-Kennzeichen über eine zweiradrige Leitung von einer Sendestelle zu einer Empfangsstelle, insbesondere von einer Sprechstelle zu der Zentrale einer Sprechanlage |
| US4839920A (en) * | 1985-09-30 | 1989-06-13 | Siemens Aktiengesellschaft | Method for determining telephone dial pulse parameters independently of subscriber line length |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1761115A (en) * | 1927-09-02 | 1930-06-03 | John E Gardner | Automatic telephone system |
| US2038303A (en) * | 1934-11-17 | 1936-04-21 | Bell Telephone Labor Inc | Signaling system |
| US2410866A (en) * | 1944-04-17 | 1946-11-12 | Automatic Elect Lab | Telephone system |
| US2681386A (en) * | 1948-07-13 | 1954-06-15 | Automatic Telephone & Elect | Electrical signaling system using nonlinear resistors for control |
| BE564293A (en:Method) * | 1957-01-30 |
-
0
- BE BE669624D patent/BE669624A/xx unknown
-
1964
- 1964-09-15 NL NL6410711A patent/NL6410711A/xx unknown
-
1965
- 1965-08-27 US US483214A patent/US3456083A/en not_active Expired - Lifetime
- 1965-09-09 JP JP5496765A patent/JPS4119444B1/ja active Pending
- 1965-09-10 GB GB38722/65A patent/GB1086648A/en not_active Expired
- 1965-09-11 DK DK466765AA patent/DK114001B/da unknown
- 1965-09-11 DE DEN27327A patent/DE1279775B/de active Pending
- 1965-09-13 AT AT834465A patent/AT254284B/de active
- 1965-09-13 CH CH1268565A patent/CH434389A/de unknown
- 1965-09-13 SE SE11900/65A patent/SE346194B/xx unknown
- 1965-09-15 FR FR31505A patent/FR1453530A/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| GB1086648A (en) | 1967-10-11 |
| SE346194B (en:Method) | 1972-06-26 |
| JPS4119444B1 (en:Method) | 1966-11-11 |
| DE1279775B (de) | 1968-10-10 |
| CH434389A (de) | 1967-04-30 |
| AT254284B (de) | 1967-05-10 |
| US3456083A (en) | 1969-07-15 |
| FR1453530A (fr) | 1966-06-03 |
| NL6410711A (en:Method) | 1966-03-16 |
| DK114001B (da) | 1969-05-19 |