SE349439B - - Google Patents
Info
- Publication number
- SE349439B SE349439B SE07569/69A SE756969A SE349439B SE 349439 B SE349439 B SE 349439B SE 07569/69 A SE07569/69 A SE 07569/69A SE 756969 A SE756969 A SE 756969A SE 349439 B SE349439 B SE 349439B
- Authority
- SE
- Sweden
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/738—Interface circuits for coupling substations to external telephone lines
- H04M1/76—Compensating for differences in line impedance
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Telephone Function (AREA)
- Interface Circuits In Exchanges (AREA)
- Amplifiers (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| IT1727968 | 1968-06-03 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SE349439B true SE349439B (de) | 1972-09-25 |
Family
ID=11150034
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SE07569/69A SE349439B (de) | 1968-06-03 | 1969-05-29 |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US3571521A (de) |
| DE (1) | DE1928266B2 (de) |
| GB (1) | GB1263384A (de) |
| NL (1) | NL6907828A (de) |
| SE (1) | SE349439B (de) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3716835A1 (de) * | 1987-05-20 | 1988-12-01 | Telefonbau & Normalzeit Gmbh | Schaltungsanordnung fuer eine zentralgespeiste fernsprechteilnehmerstation |
| GB2320380B (en) * | 1996-12-11 | 2001-09-12 | Nokia Mobile Phones Ltd | A telephone line interface |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1188662B (de) * | 1963-07-11 | 1965-03-11 | Standard Elektrik Lorenz Ag | Ausgleichsnetzwerk fuer Fernsprech-Teilnehmerstationen |
| US3330912A (en) * | 1964-01-03 | 1967-07-11 | Nippon Electric Co | Telephone system |
-
1969
- 1969-05-07 GB GB23213/69A patent/GB1263384A/en not_active Expired
- 1969-05-21 NL NL6907828A patent/NL6907828A/xx not_active Application Discontinuation
- 1969-05-29 SE SE07569/69A patent/SE349439B/xx unknown
- 1969-06-02 US US829372A patent/US3571521A/en not_active Expired - Lifetime
- 1969-06-03 DE DE19691928266 patent/DE1928266B2/de not_active Withdrawn
Also Published As
| Publication number | Publication date |
|---|---|
| US3571521A (en) | 1971-03-16 |
| NL6907828A (de) | 1969-12-05 |
| DE1928266B2 (de) | 1970-10-29 |
| DE1928266A1 (de) | 1970-01-08 |
| GB1263384A (en) | 1972-02-09 |