NL6904452A - - Google Patents
Info
- Publication number
- NL6904452A NL6904452A NL6904452A NL6904452A NL6904452A NL 6904452 A NL6904452 A NL 6904452A NL 6904452 A NL6904452 A NL 6904452A NL 6904452 A NL6904452 A NL 6904452A NL 6904452 A NL6904452 A NL 6904452A
- Authority
- NL
- Netherlands
Links
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H11/00—Networks using active elements
- H03H11/02—Multiple-port networks
- H03H11/04—Frequency selective two-port networks
- H03H11/12—Frequency selective two-port networks using amplifiers with feedback
- H03H11/1217—Frequency selective two-port networks using amplifiers with feedback using a plurality of operational amplifiers
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H11/00—Networks using active elements
- H03H11/02—Multiple-port networks
- H03H11/04—Frequency selective two-port networks
- H03H11/12—Frequency selective two-port networks using amplifiers with feedback
- H03H11/126—Frequency selective two-port networks using amplifiers with feedback using a single operational amplifier
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
- H04N1/40—Picture signal circuits
- H04N1/403—Discrimination between the two tones in the picture signal of a two-tone original
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Amplifiers (AREA)
- Dc Digital Transmission (AREA)
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL6904452A NL6904452A (xx) | 1969-03-21 | 1969-03-21 | |
| DE19702012456 DE2012456A1 (de) | 1969-03-21 | 1970-03-17 | Vorrichtung zum Verstarken von auf einer Spannung eines veränderlichen Pegels überlagerten Spannungen |
| FR7009748A FR2039674A5 (xx) | 1969-03-21 | 1970-03-18 | |
| GB1295773D GB1295773A (xx) | 1969-03-21 | 1970-03-23 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL6904452A NL6904452A (xx) | 1969-03-21 | 1969-03-21 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL6904452A true NL6904452A (xx) | 1970-09-23 |
Family
ID=19806494
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL6904452A NL6904452A (xx) | 1969-03-21 | 1969-03-21 |
Country Status (4)
| Country | Link |
|---|---|
| DE (1) | DE2012456A1 (xx) |
| FR (1) | FR2039674A5 (xx) |
| GB (1) | GB1295773A (xx) |
| NL (1) | NL6904452A (xx) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL175777C (nl) * | 1977-05-27 | 1984-12-17 | Nederlanden Staat | Schakeling voor de eliminatie van de achtergrondhelderheidsvariatie van een videosignaal. |
| CN114166275A (zh) * | 2021-11-30 | 2022-03-11 | 厦门加华电力科技有限公司 | 一种便携式高压开关柜sf6综合检测仪 |
-
1969
- 1969-03-21 NL NL6904452A patent/NL6904452A/xx unknown
-
1970
- 1970-03-17 DE DE19702012456 patent/DE2012456A1/de active Pending
- 1970-03-18 FR FR7009748A patent/FR2039674A5/fr not_active Expired
- 1970-03-23 GB GB1295773D patent/GB1295773A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR2039674A5 (xx) | 1971-01-15 |
| GB1295773A (xx) | 1972-11-08 |
| DE2012456A1 (de) | 1971-02-18 |