DE126002C - - Google Patents
Info
- Publication number
- DE126002C DE126002C DENDAT126002D DE126002DA DE126002C DE 126002 C DE126002 C DE 126002C DE NDAT126002 D DENDAT126002 D DE NDAT126002D DE 126002D A DE126002D A DE 126002DA DE 126002 C DE126002 C DE 126002C
- Authority
- DE
- Germany
- Prior art keywords
- microphone
- induction
- telephone
- primary winding
- branch
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000004804 winding Methods 0.000 claims description 7
- 230000006698 induction Effects 0.000 claims 1
- 230000005540 biological transmission Effects 0.000 description 2
- 239000004020 conductor Substances 0.000 description 1
- 230000010287 polarization Effects 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/738—Interface circuits for coupling substations to external telephone lines
- H04M1/74—Interface circuits for coupling substations to external telephone lines with means for reducing interference; with means for reducing effects due to line faults
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M9/00—Arrangements for interconnection not involving centralised switching
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
- Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
- Devices For Supply Of Signal Current (AREA)
- Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE138793T |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE126002C true DE126002C (enrdf_load_stackoverflow) |
Family
ID=5667470
Family Applications (4)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DENDAT126002D Active DE126002C (enrdf_load_stackoverflow) | |||
| DENDAT138793D Active DE138793C (enrdf_load_stackoverflow) | |||
| DENDAT137936D Active DE137936C (enrdf_load_stackoverflow) | |||
| DE1905168606D Expired - Lifetime DE168606C (enrdf_load_stackoverflow) | 1901-01-07 | 1905-01-31 |
Family Applications After (3)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DENDAT138793D Active DE138793C (enrdf_load_stackoverflow) | |||
| DENDAT137936D Active DE137936C (enrdf_load_stackoverflow) | |||
| DE1905168606D Expired - Lifetime DE168606C (enrdf_load_stackoverflow) | 1901-01-07 | 1905-01-31 |
Country Status (1)
| Country | Link |
|---|---|
| DE (4) | DE168606C (enrdf_load_stackoverflow) |
-
0
- DE DENDAT126002D patent/DE126002C/de active Active
- DE DENDAT138793D patent/DE138793C/de active Active
- DE DENDAT137936D patent/DE137936C/de active Active
-
1905
- 1905-01-31 DE DE1905168606D patent/DE168606C/de not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| DE137936C (enrdf_load_stackoverflow) | |
| DE138793C (enrdf_load_stackoverflow) | |
| DE168606C (enrdf_load_stackoverflow) |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| DE885872C (de) | Schaltungsanordnung bei selbsttaetigen Fernmeldesystemen, z. B. Fernsprechsystemen, zum Belegen von Waehlern | |
| DE2635021A1 (de) | Schaltungsanordnung zur aenderung der impedanzeigenschaften einer uebertragungsleitung | |
| DE2939009A1 (de) | Schaltungsanordnung zur feststellung des schaltzustandes einer teilnehmeranschlussleitung in fernsprechvermittlungsanlagen | |
| DE126002C (enrdf_load_stackoverflow) | ||
| DE2922271C2 (de) | Schaltungsanordnung zum Speisen von Signalübertragungsleitungen in Fernmeldeanlagen | |
| AT7894B (de) | Schaltungsanordnung für Fernsprechanlagen mit centraler Mikrophonbatterie. | |
| DE156866C (enrdf_load_stackoverflow) | ||
| DE166526C (enrdf_load_stackoverflow) | ||
| DE132673C (enrdf_load_stackoverflow) | ||
| DE596007C (de) | System zur UEbertragung von Ruf- oder Signalstroemen | |
| DE710052C (de) | Tasteinrichtung fuer Wechselstromtelegrafie | |
| DE154601C (enrdf_load_stackoverflow) | ||
| DE138017C (enrdf_load_stackoverflow) | ||
| DE194664C (enrdf_load_stackoverflow) | ||
| DE151507C (enrdf_load_stackoverflow) | ||
| DE149596C (enrdf_load_stackoverflow) | ||
| DE133387C (enrdf_load_stackoverflow) | ||
| DE89676C (enrdf_load_stackoverflow) | ||
| DE142621C (enrdf_load_stackoverflow) | ||
| DE206526C (enrdf_load_stackoverflow) | ||
| AT130089B (de) | Übertrager für selbsttätige oder halbselbsttätige Fernsprechanlagen. | |
| DE498752C (de) | Schaltungseinrichtung zur UEbertragung von Stromstoessen ueber Fernsprechleitungen | |
| DE66977C (de) | Fernsprechschaltung für weite Entfernungen | |
| DE155104C (enrdf_load_stackoverflow) | ||
| DE268460C (enrdf_load_stackoverflow) |