SE334921B - - Google Patents
Info
- Publication number
- SE334921B SE334921B SE00061/68A SE66168A SE334921B SE 334921 B SE334921 B SE 334921B SE 00061/68 A SE00061/68 A SE 00061/68A SE 66168 A SE66168 A SE 66168A SE 334921 B SE334921 B SE 334921B
- Authority
- SE
- Sweden
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/58—Anti-side-tone circuits
- H04M1/585—Anti-side-tone circuits implemented without inductive element
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Amplifiers (AREA)
- Devices For Supply Of Signal Current (AREA)
- Networks Using Active Elements (AREA)
Priority Applications (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SE00061/68A SE334921B (en:Method) | 1968-01-18 | 1968-01-18 | |
| DE19681815707 DE1815707C3 (de) | 1968-01-18 | 1968-12-13 | Abgeglichene Schaltung für Fernsprechgeräte |
| US786994A US3597550A (en) | 1968-01-18 | 1968-12-26 | Balanced telephone instrument circuit |
| FR1601818D FR1601818A (en:Method) | 1968-01-18 | 1968-12-30 | |
| GB2992/69A GB1246381A (en) | 1968-01-18 | 1969-01-17 | Improvements in or relating to telephone instrument circuit arrangements |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SE00061/68A SE334921B (en:Method) | 1968-01-18 | 1968-01-18 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SE334921B true SE334921B (en:Method) | 1971-05-10 |
Family
ID=20256909
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SE00061/68A SE334921B (en:Method) | 1968-01-18 | 1968-01-18 |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US3597550A (en:Method) |
| FR (1) | FR1601818A (en:Method) |
| GB (1) | GB1246381A (en:Method) |
| SE (1) | SE334921B (en:Method) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS495645B1 (en:Method) * | 1970-02-07 | 1974-02-08 | ||
| JPS5211166B1 (en:Method) * | 1970-07-23 | 1977-03-29 | ||
| JPS5148006B1 (en:Method) * | 1970-09-03 | 1976-12-18 |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL280765A (en:Method) * | 1961-08-07 | |||
| US3170043A (en) * | 1961-09-29 | 1965-02-16 | Bell Telephone Labor Inc | Telephone anti-sidetone circuit |
| US3453394A (en) * | 1965-12-01 | 1969-07-01 | Bell Telephone Labor Inc | Sidetone circuit for 4-wire secure telephone |
| US3453395A (en) * | 1965-12-01 | 1969-07-01 | Gen Electric | Solid-state hybrid |
-
1968
- 1968-01-18 SE SE00061/68A patent/SE334921B/xx unknown
- 1968-12-26 US US786994A patent/US3597550A/en not_active Expired - Lifetime
- 1968-12-30 FR FR1601818D patent/FR1601818A/fr not_active Expired
-
1969
- 1969-01-17 GB GB2992/69A patent/GB1246381A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| US3597550A (en) | 1971-08-03 |
| DE1815707A1 (de) | 1969-07-31 |
| GB1246381A (en) | 1971-09-15 |
| FR1601818A (en:Method) | 1970-09-14 |
| DE1815707B2 (de) | 1977-02-10 |