FR1503218A - Separation circuit - Google Patents
Separation circuitInfo
- Publication number
- FR1503218A FR1503218A FR86095A FR86095A FR1503218A FR 1503218 A FR1503218 A FR 1503218A FR 86095 A FR86095 A FR 86095A FR 86095 A FR86095 A FR 86095A FR 1503218 A FR1503218 A FR 1503218A
- Authority
- FR
- France
- Prior art keywords
- separation circuit
- separation
- circuit
- 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
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/58—Anti-side-tone circuits
- H04M1/585—Anti-side-tone circuits implemented without inductive element
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M9/00—Arrangements for interconnection not involving centralised switching
- H04M9/001—Two-way communication systems between a limited number of parties
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Amplifiers (AREA)
- Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
- Circuit For Audible Band Transducer (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE16307/65A SE316804B (en) | 1965-12-16 | 1965-12-16 |
Publications (1)
Publication Number | Publication Date |
---|---|
FR1503218A true FR1503218A (en) | 1967-11-24 |
Family
ID=20302033
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR86095A Expired FR1503218A (en) | 1965-12-16 | 1966-12-05 | Separation circuit |
Country Status (6)
Country | Link |
---|---|
US (1) | US3513259A (en) |
DE (1) | DE1487228A1 (en) |
FR (1) | FR1503218A (en) |
GB (1) | GB1119268A (en) |
NL (2) | NL6617469A (en) |
SE (1) | SE316804B (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2404344A1 (en) * | 1977-09-27 | 1979-04-20 | Jeumont Schneider | SUBSCRIBER ELECTRONIC EQUIPMENT, WITH TWO-WIRE-FOUR-WIRE CONVERSION CIRCUIT, FOR TELEPHONE CENTER |
DE2840250C2 (en) * | 1978-09-15 | 1983-01-20 | Siemens AG, 1000 Berlin und 8000 München | Circuit arrangement for a line-fed loudspeaker station |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3041411A (en) * | 1958-06-10 | 1962-06-26 | Donald C Beatty | Automatic, circuit-condition-change-responsive, on-off control for loudspeaking telephone and the like |
US3075045A (en) * | 1960-08-29 | 1963-01-22 | Bell Telephone Labor Inc | Speakerphone |
-
0
- NL NL136415D patent/NL136415C/xx active
-
1965
- 1965-12-16 SE SE16307/65A patent/SE316804B/xx unknown
-
1966
- 1966-11-04 GB GB49566/66A patent/GB1119268A/en not_active Expired
- 1966-11-09 US US593188A patent/US3513259A/en not_active Expired - Lifetime
- 1966-12-05 FR FR86095A patent/FR1503218A/en not_active Expired
- 1966-12-13 DE DE19661487228 patent/DE1487228A1/en active Pending
- 1966-12-13 NL NL6617469A patent/NL6617469A/xx unknown
Also Published As
Publication number | Publication date |
---|---|
NL6617469A (en) | 1967-06-19 |
DE1487228A1 (en) | 1969-04-03 |
GB1119268A (en) | 1968-07-10 |
NL136415C (en) | |
US3513259A (en) | 1970-05-19 |
SE316804B (en) | 1969-11-03 |
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