CS247107B1 - Circuit of a telephone set with equipment for loud hearing and individual connection - Google Patents
Circuit of a telephone set with equipment for loud hearing and individual connection Download PDFInfo
- Publication number
- CS247107B1 CS247107B1 CS817525A CS752581A CS247107B1 CS 247107 B1 CS247107 B1 CS 247107B1 CS 817525 A CS817525 A CS 817525A CS 752581 A CS752581 A CS 752581A CS 247107 B1 CS247107 B1 CS 247107B1
- Authority
- CS
- Czechoslovakia
- Prior art keywords
- connection
- cbh3h
- resistor
- circuit
- resistors
- Prior art date
Links
- 239000003990 capacitor Substances 0.000 claims 1
- 238000013016 damping Methods 0.000 claims 1
- 101100066898 Mus musculus Flna gene Proteins 0.000 description 2
- RHMALYOXPBRJBG-WXHCCQJTSA-N (2s)-6-amino-2-[[(2s)-2-[[(2s)-2-[[(2s)-2-[[(2s)-6-amino-2-[[(2s)-2-[[(2s)-2-[[2-[[(2s,3r)-2-[[(2s)-2-[[2-[[2-[[(2r)-2-amino-3-phenylpropanoyl]amino]acetyl]amino]acetyl]amino]-3-phenylpropanoyl]amino]-3-hydroxybutanoyl]amino]acetyl]amino]propanoyl]amino]- Chemical compound C([C@@H](C(=O)N[C@@H]([C@H](O)C)C(=O)NCC(=O)N[C@@H](C)C(=O)N[C@@H](CCCN=C(N)N)C(=O)N[C@@H](CCCCN)C(=O)N[C@@H](CO)C(=O)N[C@@H](C)C(=O)N[C@@H](CCCN=C(N)N)C(=O)N[C@@H](CCCCN)C(N)=O)NC(=O)CNC(=O)CNC(=O)[C@H](N)CC=1C=CC=CC=1)C1=CC=CC=C1 RHMALYOXPBRJBG-WXHCCQJTSA-N 0.000 description 1
- 241001553014 Myrsine salicina Species 0.000 description 1
- 108700031620 S-acetylthiorphan Proteins 0.000 description 1
- 240000007313 Tilia cordata Species 0.000 description 1
- 241000023701 Uranophora Species 0.000 description 1
- 230000000740 bleeding effect Effects 0.000 description 1
- LCCNCVORNKJIRZ-UHFFFAOYSA-N parathion Chemical compound CCOP(=S)(OCC)OC1=CC=C([N+]([O-])=O)C=C1 LCCNCVORNKJIRZ-UHFFFAOYSA-N 0.000 description 1
- 230000029305 taxis Effects 0.000 description 1
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
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Amplifiers (AREA)
- Telephone Set Structure (AREA)
- Crystals, And After-Treatments Of Crystals (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DD22657380A DD154419A1 (de) | 1980-12-23 | 1980-12-23 | Schaltungsanordnung fuer einen fernsprechapparat mit mithoer-und freisprecheinrichtung |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CS752581A1 CS752581A1 (en) | 1985-06-13 |
| CS247107B1 true CS247107B1 (en) | 1986-11-13 |
Family
ID=5528312
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CS817525A CS247107B1 (en) | 1980-12-23 | 1981-10-14 | Circuit of a telephone set with equipment for loud hearing and individual connection |
Country Status (6)
| Country | Link |
|---|---|
| CS (1) | CS247107B1 (enrdf_load_stackoverflow) |
| CU (1) | CU21478A3 (enrdf_load_stackoverflow) |
| DD (1) | DD154419A1 (enrdf_load_stackoverflow) |
| DE (1) | DE3129506A1 (enrdf_load_stackoverflow) |
| HU (1) | HU187462B (enrdf_load_stackoverflow) |
| RO (1) | RO85240B (enrdf_load_stackoverflow) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3307552A1 (de) * | 1983-03-03 | 1984-09-06 | Hans Widmaier Fabrik für Apparate der Fernmelde- und Feinwerktechnik, 8000 München | Schaltung zur pfeifunterdrueckung bei fernsprechapparaten mit lauthoerverstaerker |
| DE3329476A1 (de) * | 1983-08-16 | 1985-03-07 | Telefonbau Und Normalzeit Gmbh, 6000 Frankfurt | Schaltungsanordnung zur einschaltung von steuereinrichtungen bei fernsprechapparaten |
| DE3505213A1 (de) * | 1985-02-15 | 1986-08-21 | Deutsche Fernsprecher Gesellschaft Mbh Marburg, 3550 Marburg | Schaltung in einem fernsprechapparat |
| DE4329638C2 (de) * | 1993-09-02 | 1996-10-24 | Telefunken Microelectron | Lauthöreinrichtung |
| DE29614668U1 (de) | 1996-08-24 | 1996-11-14 | Kroos, Heinz Thomas, 33129 Delbrück | Freisprecheinheit für Mobiltelefone (Handys) |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL155700B (nl) * | 1971-12-08 | 1978-01-16 | Philips Nv | Luidsprekende telefooninrichting. |
| DE2607016A1 (de) * | 1976-02-19 | 1977-08-25 | Manfred Lau | Elektronischer telefonverstaerker |
| FR2376576A1 (fr) * | 1976-12-31 | 1978-07-28 | Girard J Philippe | Perfectionnements aux postes telephoniques a mains libres |
-
1980
- 1980-12-23 DD DD22657380A patent/DD154419A1/de not_active IP Right Cessation
-
1981
- 1981-07-27 DE DE19813129506 patent/DE3129506A1/de active Granted
- 1981-10-14 CS CS817525A patent/CS247107B1/cs unknown
- 1981-10-22 HU HU307581A patent/HU187462B/hu not_active IP Right Cessation
- 1981-12-22 RO RO106073A patent/RO85240B/ro unknown
- 1981-12-22 CU CU35575A patent/CU21478A3/es unknown
Also Published As
| Publication number | Publication date |
|---|---|
| CS752581A1 (en) | 1985-06-13 |
| DD154419A1 (de) | 1982-03-17 |
| DE3129506C2 (enrdf_load_stackoverflow) | 1989-09-07 |
| RO85240B (ro) | 1984-10-30 |
| HU187462B (en) | 1986-01-28 |
| RO85240A (ro) | 1984-09-29 |
| CU21478A3 (en) | 1987-10-12 |
| DE3129506A1 (de) | 1982-07-01 |
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