BE721273A - - Google Patents
Info
- Publication number
- BE721273A BE721273A BE721273DA BE721273A BE 721273 A BE721273 A BE 721273A BE 721273D A BE721273D A BE 721273DA BE 721273 A BE721273 A BE 721273A
- Authority
- BE
- Belgium
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M15/00—Arrangements for metering, time-control or time indication ; Metering, charging or billing arrangements for voice wireline or wireless communications, e.g. VoIP
- H04M15/28—Arrangements for metering, time-control or time indication ; Metering, charging or billing arrangements for voice wireline or wireless communications, e.g. VoIP with meter at substation or with calculation of charges at terminal
-
- 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
- H04Q1/32—Signalling arrangements; Manipulation of signalling currents using trains of DC pulses
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Details Of Flowmeters (AREA)
- Interface Circuits In Exchanges (AREA)
- Manipulation Of Pulses (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| IT2093567 | 1967-09-27 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE721273A true BE721273A (https=) | 1969-03-03 |
Family
ID=11174291
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE721273D BE721273A (https=) | 1967-09-27 | 1968-09-23 |
Country Status (8)
| Country | Link |
|---|---|
| US (1) | US3581008A (https=) |
| AT (1) | AT303134B (https=) |
| BE (1) | BE721273A (https=) |
| CH (1) | CH494507A (https=) |
| DE (1) | DE1762895A1 (https=) |
| FR (1) | FR1581362A (https=) |
| GB (1) | GB1236215A (https=) |
| NL (1) | NL6812919A (https=) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3699274A (en) * | 1971-07-22 | 1972-10-17 | Perkins Res & Mfg Co | Apparatus for identifying telephone cable pairs |
| US4184045A (en) * | 1978-05-25 | 1980-01-15 | Hansson Gert Ake G | System and method for transmission of information |
| IT1179742B (it) * | 1984-07-27 | 1987-09-16 | Urmet Spa | Apparecchio telefonico per uso pubblico con microprocessore di gestione integrale |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL18105C (https=) * | 1924-02-29 | |||
| US2332907A (en) * | 1942-04-23 | 1943-10-26 | Bell Telephone Labor Inc | Signaling system |
| US3321578A (en) * | 1963-09-19 | 1967-05-23 | Northern Electric Co | Polar grounded loop d.c. telegraph receiver circuit |
-
1968
- 1968-09-10 NL NL6812919A patent/NL6812919A/xx unknown
- 1968-09-16 FR FR1581362D patent/FR1581362A/fr not_active Expired
- 1968-09-18 CH CH1413968A patent/CH494507A/fr not_active IP Right Cessation
- 1968-09-19 DE DE19681762895 patent/DE1762895A1/de active Pending
- 1968-09-23 BE BE721273D patent/BE721273A/xx unknown
- 1968-09-24 AT AT929968A patent/AT303134B/de not_active IP Right Cessation
- 1968-09-26 US US762752A patent/US3581008A/en not_active Expired - Lifetime
- 1968-09-27 GB GB46074/68A patent/GB1236215A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR1581362A (https=) | 1969-09-12 |
| NL6812919A (https=) | 1969-03-31 |
| CH494507A (fr) | 1970-07-31 |
| GB1236215A (en) | 1971-06-23 |
| US3581008A (en) | 1971-05-25 |
| DE1762895A1 (de) | 1970-10-29 |
| AT303134B (de) | 1972-11-10 |