FR751748A - - Google Patents
Info
- Publication number
- FR751748A FR751748A FR751748DA FR751748A FR 751748 A FR751748 A FR 751748A FR 751748D A FR751748D A FR 751748DA FR 751748 A FR751748 A FR 751748A
- Authority
- FR
- France
- 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
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B3/00—Line transmission systems
- H04B3/02—Details
- H04B3/20—Reducing echo effects or singing; Opening or closing transmitting path; Conditioning for transmission in one direction or the other
- H04B3/21—Reducing echo effects or singing; Opening or closing transmitting path; Conditioning for transmission in one direction or the other using a set of bandfilters
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Radio Relay Systems (AREA)
- Filters And Equalizers (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB614333A GB415717A (en) | 1933-02-28 | 1933-02-28 | Improvements in echo suppressors or other similar blocking arrangements for telephone and like transmission systems |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| FR751748A true FR751748A (en) | 1933-09-07 |
Family
ID=9809192
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR751748D Expired FR751748A (en) | 1933-02-28 |
Country Status (5)
| Country | Link |
|---|---|
| BE (1) | BE394748A (en) |
| DE (1) | DE608854C (en) |
| FR (1) | FR751748A (en) |
| GB (1) | GB415717A (en) |
| NL (1) | NL37437C (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE741788C (en) * | 1939-01-20 | 1943-11-17 | Telefunken Gmbh | Circuit arrangement for phase and damping equalization of electrical transmission systems |
-
0
- BE BE394748D patent/BE394748A/xx unknown
- FR FR751748D patent/FR751748A/fr not_active Expired
- NL NL37437D patent/NL37437C/xx active
-
1932
- 1932-04-26 DE DE1932T0040609 patent/DE608854C/en not_active Expired
-
1933
- 1933-02-28 GB GB614333A patent/GB415717A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| NL37437C (en) | |
| BE394748A (en) | |
| DE608854C (en) | 1935-02-02 |
| GB415717A (en) | 1934-08-28 |