FI40475B - - Google Patents
Info
- Publication number
- FI40475B FI40475B FI98463A FI98463A FI40475B FI 40475 B FI40475 B FI 40475B FI 98463 A FI98463 A FI 98463A FI 98463 A FI98463 A FI 98463A FI 40475 B FI40475 B FI 40475B
- Authority
- FI
- Finland
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
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
- Devices For Supply Of Signal Current (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DES79696A DE1165670B (de) | 1962-05-30 | 1962-05-30 | Schaltungsanordnung zum automatischen ausregeln des Daempfungsunterschiedes verschiedener Fernsprechteilnehmeranschluesse |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| FI40475B true FI40475B (es) | 1968-10-31 |
Family
ID=7508380
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FI98463A FI40475B (es) | 1962-05-30 | 1963-05-13 |
Country Status (6)
| Country | Link |
|---|---|
| BE (1) | BE633073A (es) |
| CH (1) | CH401164A (es) |
| DE (1) | DE1165670B (es) |
| FI (1) | FI40475B (es) |
| GB (1) | GB1010526A (es) |
| SE (1) | SE311030B (es) |
-
0
- BE BE633073D patent/BE633073A/xx unknown
-
1962
- 1962-05-30 DE DES79696A patent/DE1165670B/de active Pending
-
1963
- 1963-05-13 FI FI98463A patent/FI40475B/fi active
- 1963-05-29 CH CH671363A patent/CH401164A/de unknown
- 1963-05-29 SE SE594663A patent/SE311030B/xx unknown
- 1963-05-29 GB GB2143263A patent/GB1010526A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| DE1165670B (de) | 1964-03-19 |
| SE311030B (es) | 1969-05-27 |
| BE633073A (es) | |
| GB1010526A (en) | 1965-11-17 |
| CH401164A (de) | 1965-10-31 |