SE301502B - - Google Patents
Info
- Publication number
- SE301502B SE301502B SE8169/62A SE816962A SE301502B SE 301502 B SE301502 B SE 301502B SE 8169/62 A SE8169/62 A SE 8169/62A SE 816962 A SE816962 A SE 816962A SE 301502 B SE301502 B SE 301502B
- Authority
- SE
- Sweden
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M9/00—Arrangements for interconnection not involving centralised switching
- H04M9/001—Two-way communication systems between a limited number of parties
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B3/00—Line transmission systems
- H04B3/02—Details
- H04B3/20—Reducing echo effects or singing; Opening or closing transmitting path; Conditioning for transmission in one direction or the other
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Computer Networks & Wireless Communication (AREA)
- Amplifiers (AREA)
- Control Of Amplification And Gain Control (AREA)
Priority Applications (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SE8169/62A SE301502B (xx) | 1962-07-24 | 1962-07-24 | |
| US288642A US3392243A (en) | 1962-07-24 | 1963-06-18 | Two-way speech amplifier |
| DEA43529A DE1228310B (de) | 1962-07-24 | 1963-07-08 | Schaltungsanordnung fuer sprachgesteuerte Gegensprechanlagen oder Zweiweg-Sprach-verstaerker |
| DK336663AA DK119781B (da) | 1962-07-24 | 1963-07-15 | Forstærker til tovejs-samtaleforbindelse. |
| GB29121/63A GB1044979A (en) | 1962-07-24 | 1963-07-23 | Two-way speech amplifier |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SE8169/62A SE301502B (xx) | 1962-07-24 | 1962-07-24 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SE301502B true SE301502B (xx) | 1968-06-10 |
Family
ID=20273334
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SE8169/62A SE301502B (xx) | 1962-07-24 | 1962-07-24 |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US3392243A (xx) |
| DE (1) | DE1228310B (xx) |
| DK (1) | DK119781B (xx) |
| GB (1) | GB1044979A (xx) |
| SE (1) | SE301502B (xx) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SE311031B (xx) * | 1965-12-16 | 1969-05-27 | Ericsson Telefon Ab L M | |
| US3689711A (en) * | 1971-01-27 | 1972-09-05 | Bell Telephone Labor Inc | Call diverter repeater |
| JPS5224898B2 (xx) * | 1972-03-16 | 1977-07-04 | ||
| FR2518854B1 (fr) * | 1981-12-18 | 1986-08-08 | Thomson Csf Mat Tel | Poste telephonique a amplificateurs de parole |
| US7983429B2 (en) * | 2005-06-15 | 2011-07-19 | Keys Jeramie J | Speaker system utilizing input from a transducer in proximity to a separate speaker |
| CN115987236B (zh) * | 2023-03-20 | 2023-06-16 | 上海海栎创科技股份有限公司 | 一种音频信号处理系统及音频动态范围控制方法 |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2468553A (en) * | 1945-03-17 | 1949-04-26 | Automatic Elect Lab | Voice operated control circuit |
| DE1077715B (de) * | 1953-09-01 | 1960-03-17 | Siemens Ag | Mehrstufiger Transistorverstaerker mit Gegentaktendstufe |
| GB839975A (en) * | 1955-07-28 | 1960-06-29 | Telephone Mfg Co Ltd | Improvements in and relating to signal switched telecommunication circuits |
| BE565494A (xx) * | 1957-11-26 | 1900-01-01 | ||
| DE1086753B (de) * | 1958-04-28 | 1960-08-11 | Ericsson Telefon Ab L M | Sprachgesteuerte Wechselsprechanlage |
| DE1129543B (de) * | 1958-06-25 | 1962-05-17 | Gylling & Co Ab | Schaltungsanordnung fuer sprachgesteuerte Wechselsprechanlagen |
| US3146313A (en) * | 1961-06-08 | 1964-08-25 | Ericsson Telefon Ab L M | Amplifier arrangement for loudspeaking telephones |
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1962
- 1962-07-24 SE SE8169/62A patent/SE301502B/xx unknown
-
1963
- 1963-06-18 US US288642A patent/US3392243A/en not_active Expired - Lifetime
- 1963-07-08 DE DEA43529A patent/DE1228310B/de active Pending
- 1963-07-15 DK DK336663AA patent/DK119781B/da unknown
- 1963-07-23 GB GB29121/63A patent/GB1044979A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| GB1044979A (en) | 1966-10-05 |
| DK119781B (da) | 1971-02-22 |
| US3392243A (en) | 1968-07-09 |
| DE1228310B (de) | 1966-11-10 |