BE499901A - - Google Patents
Info
- Publication number
- BE499901A BE499901A BE499901DA BE499901A BE 499901 A BE499901 A BE 499901A BE 499901D A BE499901D A BE 499901DA BE 499901 A BE499901 A BE 499901A
- Authority
- BE
- Belgium
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q3/00—Selecting arrangements
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K19/00—Logic circuits, i.e. having at least two inputs acting on one output; Inverting circuits
- H03K19/02—Logic circuits, i.e. having at least two inputs acting on one output; Inverting circuits using specified components
- H03K19/12—Logic circuits, i.e. having at least two inputs acting on one output; Inverting circuits using specified components using diode rectifiers
-
- 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
- H04M15/08—Metering calls to called party, i.e. B-party charged for the communication
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- Computing Systems (AREA)
- General Engineering & Computer Science (AREA)
- Mathematical Physics (AREA)
- Signal Processing (AREA)
- Devices For Supply Of Signal Current (AREA)
- Telephonic Communication Services (AREA)
- Meter Arrangements (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR856165X | 1949-12-30 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE499901A true BE499901A (US20100154137A1-20100624-C00004.png) |
Family
ID=9328705
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE499901D BE499901A (US20100154137A1-20100624-C00004.png) | 1949-12-30 |
Country Status (6)
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BE545100A (US20100154137A1-20100624-C00004.png) * | 1953-07-03 | |||
| DE1085201B (de) * | 1955-01-19 | 1960-07-14 | Josef Dirr | Schaltungsanordnung zur Auswertung von ueber abgeriegelte Leitungen uebertragenen, zeitlich versetzten Wechselstromimpulsen einer Frequenz fuer die Identifizierung von Leitungen zur Gebuehrenerfassung in Fernmelde-, insbesondere Fernsprechanlagen |
| NL95809C (US20100154137A1-20100624-C00004.png) * | 1955-03-28 | |||
| US2857470A (en) * | 1956-05-02 | 1958-10-21 | Gen Telephone Lab Inc | Transistor line identifier |
| NL207696A (US20100154137A1-20100624-C00004.png) * | 1956-06-05 | Philips Nv | ||
| GB809871A (en) * | 1956-12-21 | 1959-03-04 | Standard Telephones Cables Ltd | Improvements in or relating to automatic telecommunication exchanges |
| US2924666A (en) * | 1957-09-19 | 1960-02-09 | Bell Telephone Labor Inc | Telephone system calling stations identifier |
| DE1215213B (de) * | 1960-10-01 | 1966-04-28 | Telefonbau & Normalzeit Gmbh | Schaltungsanordnung zur Erkennung und Markierung der jeweils rufenden von gruppenweise zusammengefassten Leitungen, insbesondere Teilnehmeranschlussleitungen, in Fernsprechvermittlungsanlagen |
| US3328530A (en) * | 1963-10-10 | 1967-06-27 | Automatic Elect Lab | Director system with time division access of a common translator |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BE473095A (US20100154137A1-20100624-C00004.png) * | 1946-05-17 |
-
0
- BE BE499901D patent/BE499901A/xx unknown
-
1949
- 1949-12-30 FR FR1012626D patent/FR1012626A/fr not_active Expired
-
1950
- 1950-12-01 GB GB29430/50A patent/GB740531A/en not_active Expired
- 1950-12-28 DE DEI3656A patent/DE856165C/de not_active Expired
- 1950-12-29 CH CH318330D patent/CH318330A/fr unknown
- 1950-12-29 US US203253A patent/US2694753A/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| FR1012626A (fr) | 1952-07-15 |
| US2694753A (en) | 1954-11-16 |
| CH318330A (fr) | 1956-12-31 |
| GB740531A (en) | 1955-11-16 |
| DE856165C (de) | 1952-11-20 |
