DE168606C - - Google Patents
Info
- Publication number
- DE168606C DE168606C DE1905168606D DE168606DA DE168606C DE 168606 C DE168606 C DE 168606C DE 1905168606 D DE1905168606 D DE 1905168606D DE 168606D A DE168606D A DE 168606DA DE 168606 C DE168606 C DE 168606C
- Authority
- DE
- Germany
- Prior art keywords
- microphone
- telephone
- branch
- transformer
- shunt
- 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.)
- Expired - Lifetime
Links
- 238000004804 winding Methods 0.000 claims description 11
- 230000010287 polarization Effects 0.000 claims description 4
- 239000003990 capacitor Substances 0.000 claims description 2
- 230000000694 effects Effects 0.000 description 1
- 210000000056 organ Anatomy 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 230000007704 transition Effects 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)
- Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
- Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
- Devices For Supply Of Signal Current (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AT29277D AT29277B (de) | 1901-01-07 | 1906-04-02 | Schaltungsanordnung für Fernsprechanlagen mit zentraler Mikrophonbatterie. |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE138793T |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE168606C true DE168606C (enrdf_load_stackoverflow) |
Family
ID=5667470
Family Applications (4)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DENDAT137936D Active DE137936C (enrdf_load_stackoverflow) | |||
| DENDAT138793D Active DE138793C (enrdf_load_stackoverflow) | |||
| DENDAT126002D Active DE126002C (enrdf_load_stackoverflow) | |||
| DE1905168606D Expired - Lifetime DE168606C (enrdf_load_stackoverflow) | 1901-01-07 | 1905-01-31 |
Family Applications Before (3)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DENDAT137936D Active DE137936C (enrdf_load_stackoverflow) | |||
| DENDAT138793D Active DE138793C (enrdf_load_stackoverflow) | |||
| DENDAT126002D Active DE126002C (enrdf_load_stackoverflow) |
Country Status (1)
| Country | Link |
|---|---|
| DE (4) | DE168606C (enrdf_load_stackoverflow) |
-
0
- DE DENDAT137936D patent/DE137936C/de active Active
- DE DENDAT138793D patent/DE138793C/de active Active
- DE DENDAT126002D patent/DE126002C/de active Active
-
1905
- 1905-01-31 DE DE1905168606D patent/DE168606C/de not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| DE138793C (enrdf_load_stackoverflow) | |
| DE126002C (enrdf_load_stackoverflow) | |
| DE137936C (enrdf_load_stackoverflow) |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP0027596B1 (de) | Schaltungsanordnung für eine Fernsprechteilnehmerstation | |
| DE2939009A1 (de) | Schaltungsanordnung zur feststellung des schaltzustandes einer teilnehmeranschlussleitung in fernsprechvermittlungsanlagen | |
| DE168606C (enrdf_load_stackoverflow) | ||
| DE290397C (enrdf_load_stackoverflow) | ||
| DE205453C (enrdf_load_stackoverflow) | ||
| DE1086284B (de) | Schaltungsanordnung fuer Fernmelde-, insbesondere Fernsprechanlagen mit Relaiskopplern | |
| DE3132971A1 (de) | Schaltungsanordnung fuer fernsprechvermittlungsanlagen, insbesondere kleine nebenstellenanlagen, bei denen zwischen den teilnehmerstellen und einer ihnen gemeinsamen einrichtung eine signalisierung vorgenommen wird | |
| AT29277B (de) | Schaltungsanordnung für Fernsprechanlagen mit zentraler Mikrophonbatterie. | |
| DE179952C (enrdf_load_stackoverflow) | ||
| DE260066C (enrdf_load_stackoverflow) | ||
| DE138298C (enrdf_load_stackoverflow) | ||
| DE322209C (de) | Schaltung fuer Fernsprechhaupt- und -nebenstellen mit Linienwaehlern und Rueckfrageeinrichtung | |
| AT7894B (de) | Schaltungsanordnung für Fernsprechanlagen mit centraler Mikrophonbatterie. | |
| DE2917867A1 (de) | Elektronische wahlimpulserzeugung | |
| DE133387C (enrdf_load_stackoverflow) | ||
| DE272989C (enrdf_load_stackoverflow) | ||
| DE66977C (de) | Fernsprechschaltung für weite Entfernungen | |
| DE889173C (de) | Schaltungsanordnung fuer Gebuehrenanzeiger an Teilnehmerstellen in Fernmeldeanlagen, insbesondere Fernsprechanlagen | |
| DE190177C (enrdf_load_stackoverflow) | ||
| DE146508C (enrdf_load_stackoverflow) | ||
| AT81528B (de) | Nebenzentralenschaltung für ZentralbatteriebetriebNebenzentralenschaltung für Zentralbatteriebetrieb. . | |
| DE335822C (de) | Schaltungsanordnung fuer Nebenstellenanlagen | |
| DE231489C (enrdf_load_stackoverflow) | ||
| DE908984C (de) | Zweidraht-UEbertragungsanlage | |
| DE193325C (enrdf_load_stackoverflow) |