NL6506764A - - Google Patents
Info
- Publication number
- NL6506764A NL6506764A NL6506764A NL6506764A NL6506764A NL 6506764 A NL6506764 A NL 6506764A NL 6506764 A NL6506764 A NL 6506764A NL 6506764 A NL6506764 A NL 6506764A NL 6506764 A NL6506764 A NL 6506764A
- Authority
- NL
- Netherlands
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M9/00—Arrangements for interconnection not involving centralised switching
- H04M9/08—Two-way loud-speaking telephone systems with means for conditioning the signal, e.g. for suppressing echoes for one or both directions of traffic
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M9/00—Arrangements for interconnection not involving centralised switching
- H04M9/08—Two-way loud-speaking telephone systems with means for conditioning the signal, e.g. for suppressing echoes for one or both directions of traffic
- H04M9/10—Two-way loud-speaking telephone systems with means for conditioning the signal, e.g. for suppressing echoes for one or both directions of traffic with switching of direction of transmission by voice frequency
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Circuit For Audible Band Transducer (AREA)
- Amplifiers (AREA)
- Interconnected Communication Systems, Intercoms, And Interphones (AREA)
- Mobile Radio Communication Systems (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB22299/64A GB1029163A (en) | 1964-05-29 | 1964-05-29 | Improvements in or relating to telephone sets |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL6506764A true NL6506764A (enExample) | 1965-11-30 |
Family
ID=10177137
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL6506764A NL6506764A (enExample) | 1964-05-29 | 1965-05-28 |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US3448217A (enExample) |
| DE (1) | DE1512103A1 (enExample) |
| GB (1) | GB1029163A (enExample) |
| NL (1) | NL6506764A (enExample) |
| SE (1) | SE310192B (enExample) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4065646A (en) * | 1976-06-28 | 1977-12-27 | Bell Telephone Laboratories, Incorporated | Power converter |
| DE2822067C2 (de) * | 1978-05-20 | 1986-09-18 | Standard Elektrik Lorenz Ag, 7000 Stuttgart | Schaltungsanordnung für Fernsprechapparate |
| JP2751244B2 (ja) * | 1988-02-18 | 1998-05-18 | 日本電気株式会社 | ハンズフリー回路及びハンズフリー制御方式 |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL225471A (enExample) * | 1957-11-26 | 1900-01-01 | ||
| NL125146C (enExample) * | 1958-12-29 | |||
| US3136864A (en) * | 1959-10-05 | 1964-06-09 | Automatic Elect Lab | Loudspeaking telephone with electronic voice switching |
| US3189690A (en) * | 1960-04-27 | 1965-06-15 | Modern Telephones Great Britai | Two-way telephone systems with talk-listen switching |
| NL267461A (enExample) * | 1960-10-04 | 1900-01-01 | ||
| US3330912A (en) * | 1964-01-03 | 1967-07-11 | Nippon Electric Co | Telephone system |
-
1964
- 1964-05-29 GB GB22299/64A patent/GB1029163A/en not_active Expired
-
1965
- 1965-05-10 SE SE6048/65A patent/SE310192B/xx unknown
- 1965-05-26 DE DE19651512103 patent/DE1512103A1/de active Pending
- 1965-05-28 NL NL6506764A patent/NL6506764A/xx unknown
-
1968
- 1968-08-14 US US754110A patent/US3448217A/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| SE310192B (enExample) | 1969-04-21 |
| US3448217A (en) | 1969-06-03 |
| DE1512103A1 (de) | 1969-02-27 |
| GB1029163A (en) | 1966-05-11 |