BE555540A - - Google Patents
Info
- Publication number
- BE555540A BE555540A BE555540DA BE555540A BE 555540 A BE555540 A BE 555540A BE 555540D A BE555540D A BE 555540DA BE 555540 A BE555540 A BE 555540A
- 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
- H04M15/08—Metering calls to called party, i.e. B-party charged for the communication
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q3/00—Selecting arrangements
- H04Q3/58—Arrangements providing connection between main exchange and sub-exchange or satellite
- H04Q3/62—Arrangements providing connection between main exchange and sub-exchange or satellite for connecting to private branch exchanges
- H04Q3/625—Arrangements in the private branch exchange
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Physics & Mathematics (AREA)
- Astronomy & Astrophysics (AREA)
- General Physics & Mathematics (AREA)
- Signal Processing (AREA)
- Interface Circuits In Exchanges (AREA)
- Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
- Selective Calling Equipment (AREA)
- Devices For Supply Of Signal Current (AREA)
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1849153A GB763829A (en) | 1953-07-03 | 1953-07-03 | Improvements in or relating to line identification in telecommunication systems |
| BE545100 | 1956-02-10 | ||
| DEST10935A DE1041097B (de) | 1953-07-03 | 1956-03-06 | Schaltungsanordnung fuer Anrufsucher in Fernmelde-, insbesondere Fernsprechanlagen |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE555540A true BE555540A (pt) |
Family
ID=27158846
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE545100D BE545100A (pt) | 1953-07-03 | ||
| BE555540D BE555540A (pt) | 1953-07-03 |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE545100D BE545100A (pt) | 1953-07-03 |
Country Status (6)
| Country | Link |
|---|---|
| US (3) | US2913530A (pt) |
| BE (2) | BE555540A (pt) |
| DE (1) | DE1041097B (pt) |
| FR (3) | FR1108791A (pt) |
| GB (1) | GB810168A (pt) |
| NL (2) | NL102419C (pt) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1158587B (de) * | 1961-07-20 | 1963-12-05 | Telefunken Patent | Schaltungsanordnung zur Anzeige und Kennzeichnung (Identifizierung) anrufender Leitungen in Fernsprechvermittlungsanlagen |
| US3522385A (en) * | 1966-09-22 | 1970-07-28 | Itt | Calling subscriber identification circuit |
| CN109709150B (zh) * | 2018-12-25 | 2020-06-02 | 华中科技大学 | 基于压电阻抗信息的叠层橡胶隔震支座损伤识别方法 |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2152889A (en) * | 1935-05-31 | 1939-04-04 | Panstwowe Zaklady Tele I Radjo | Telephone system |
| BE477655A (pt) * | 1941-08-15 | |||
| BE473095A (pt) * | 1946-05-17 | |||
| US2580093A (en) * | 1947-12-16 | 1951-12-25 | Bell Telephone Labor Inc | Call data recording telephone system |
| NL75989C (pt) * | 1949-01-17 | |||
| BE499901A (pt) * | 1949-12-30 | |||
| BE500623A (pt) * | 1950-01-16 | |||
| BE512622A (pt) * | 1951-07-05 | |||
| US2739187A (en) * | 1953-01-06 | 1956-03-20 | Bell Telephone Labor Inc | Station number identifier |
-
0
- BE BE545100D patent/BE545100A/xx unknown
- NL NL107045D patent/NL107045C/xx active
- NL NL102419D patent/NL102419C/xx active
- BE BE555540D patent/BE555540A/xx unknown
-
1954
- 1954-06-23 US US438719A patent/US2913530A/en not_active Expired - Lifetime
- 1954-07-02 FR FR1108791D patent/FR1108791A/fr not_active Expired
-
1956
- 1956-03-06 DE DEST10935A patent/DE1041097B/de active Pending
-
1957
- 1957-02-01 GB GB3565/57A patent/GB810168A/en not_active Expired
- 1957-02-04 US US638089A patent/US2954439A/en not_active Expired - Lifetime
- 1957-02-08 FR FR71644D patent/FR71644E/fr not_active Expired
- 1957-02-27 US US642857A patent/US2989593A/en not_active Expired - Lifetime
- 1957-03-05 FR FR71813D patent/FR71813E/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| US2989593A (en) | 1961-06-20 |
| NL107045C (pt) | |
| FR71644E (fr) | 1960-01-13 |
| US2954439A (en) | 1960-09-27 |
| GB810168A (en) | 1959-03-11 |
| DE1041097B (de) | 1958-10-16 |
| FR71813E (fr) | 1960-02-01 |
| BE545100A (pt) | |
| US2913530A (en) | 1959-11-17 |
| NL102419C (pt) | |
| FR1108791A (fr) | 1956-01-17 |