JPS58121878A - 映像信号の側縁を急峻化する回路 - Google Patents
映像信号の側縁を急峻化する回路Info
- Publication number
- JPS58121878A JPS58121878A JP57178607A JP17860782A JPS58121878A JP S58121878 A JPS58121878 A JP S58121878A JP 57178607 A JP57178607 A JP 57178607A JP 17860782 A JP17860782 A JP 17860782A JP S58121878 A JPS58121878 A JP S58121878A
- Authority
- JP
- Japan
- Prior art keywords
- video signal
- circuit
- signal
- amplitude
- transistor
- 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.)
- Granted
Links
- 230000004069 differentiation Effects 0.000 claims description 14
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 10
- 229910052710 silicon Inorganic materials 0.000 claims description 10
- 239000010703 silicon Substances 0.000 claims description 10
- 230000008859 change Effects 0.000 claims description 9
- 229910052732 germanium Inorganic materials 0.000 claims description 8
- GNPVGFCGXDBREM-UHFFFAOYSA-N germanium atom Chemical compound [Ge] GNPVGFCGXDBREM-UHFFFAOYSA-N 0.000 claims description 8
- 210000003323 beak Anatomy 0.000 claims 1
- 238000011144 upstream manufacturing Methods 0.000 claims 1
- 238000012937 correction Methods 0.000 description 19
- 230000000694 effects Effects 0.000 description 16
- 238000010586 diagram Methods 0.000 description 10
- 239000003990 capacitor Substances 0.000 description 9
- 230000001965 increasing effect Effects 0.000 description 7
- 230000006872 improvement Effects 0.000 description 6
- 230000008901 benefit Effects 0.000 description 4
- 230000000670 limiting effect Effects 0.000 description 4
- 230000004048 modification Effects 0.000 description 4
- 238000012986 modification Methods 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 230000015556 catabolic process Effects 0.000 description 3
- 230000007423 decrease Effects 0.000 description 3
- 238000006731 degradation reaction Methods 0.000 description 3
- 230000001419 dependent effect Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 230000006866 deterioration Effects 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 239000004065 semiconductor Substances 0.000 description 2
- 238000001467 acupuncture Methods 0.000 description 1
- 230000003321 amplification Effects 0.000 description 1
- 230000002238 attenuated effect Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000000593 degrading effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/76—Television signal recording
- H04N5/91—Television signal processing therefor
- H04N5/92—Transformation of the television signal for recording, e.g. modulation, frequency changing; Inverse transformation for playback
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Picture Signal Circuits (AREA)
- Television Signal Processing For Recording (AREA)
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE31407617 | 1981-10-14 | ||
| DE19813140761 DE3140761C2 (de) | 1981-10-14 | 1981-10-14 | Schaltung zur Versteilerung der Flanken eines Videosignals, insbesondere für einen Videorecorder |
| DE32066856 | 1982-02-25 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS58121878A true JPS58121878A (ja) | 1983-07-20 |
| JPH0134503B2 JPH0134503B2 (enrdf_load_stackoverflow) | 1989-07-19 |
Family
ID=6144062
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP57178607A Granted JPS58121878A (ja) | 1981-10-14 | 1982-10-13 | 映像信号の側縁を急峻化する回路 |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JPS58121878A (enrdf_load_stackoverflow) |
| DE (1) | DE3140761C2 (enrdf_load_stackoverflow) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60217757A (ja) * | 1984-01-11 | 1985-10-31 | ドイチエ・トムソン−ブラント・ゲゼルシヤフト・ミツト・ベシユレンクテル・ハフツング | ビデオ信号の側縁急峻化回路 |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3307014A1 (de) * | 1983-02-28 | 1984-08-30 | Telefunken Fernseh Und Rundfunk Gmbh, 3000 Hannover | Schaltung zur verbesserung der bildschaerfe bei einem videorecorder |
| DE3418794A1 (de) * | 1984-05-19 | 1985-11-21 | Grundig E.M.V. Elektro-Mechanische Versuchsanstalt Max Grundig holländ. Stiftung & Co KG, 8510 Fürth | Verfahren zur fernsehschmalbanduebertragung |
| DE3430480C2 (de) * | 1984-08-18 | 1993-11-18 | Grundig Emv | Schaltung zur Vorverzerrung eines Videosignals bei der frequenzmodulierten Aufzeichnung |
| DE3516913C1 (de) * | 1985-05-10 | 1986-10-02 | Philips Patentverwaltung Gmbh, 2000 Hamburg | Automatische FM-Seitenband-Pegelregelung fuer Video-Recorder |
| JPS6276871A (ja) * | 1985-09-30 | 1987-04-08 | Toshiba Corp | 画質補正回路 |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5046034A (enrdf_load_stackoverflow) * | 1973-08-28 | 1975-04-24 | ||
| JPS5068221A (enrdf_load_stackoverflow) * | 1973-10-18 | 1975-06-07 | ||
| JPS52142417A (en) * | 1976-05-21 | 1977-11-28 | Mitsubishi Electric Corp | Picture amplifying circuit |
| JPS54159210A (en) * | 1978-06-06 | 1979-12-15 | Matsushita Electric Ind Co Ltd | Emphasis circuit of fm modulator and demodulator |
| JPS5566476U (enrdf_load_stackoverflow) * | 1978-10-31 | 1980-05-08 | ||
| JPS55161408A (en) * | 1979-06-02 | 1980-12-16 | Pioneer Electronic Corp | Limiter circuit |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1039842B (de) * | 1957-08-14 | 1958-09-25 | Rudol Hell Dr Ing | Verfahren zur kuenstlichen Kontraststeigerung an Tonwertspruengen und Konturen in mittels elektronischer Klischier-maschinen herzustellenden Klischees |
| DE2114149C3 (de) * | 1971-03-24 | 1973-09-20 | Robert Bosch Fernsehanlagen Gmbh, 6100 Darmstadt | Amphtudendiskriminator fur eine Schaltungsanordnung zur Erzeugung eines Korrektursignals zur Flankenverstelle rung von Impulsen |
| JPS5538869B2 (enrdf_load_stackoverflow) * | 1972-07-13 | 1980-10-07 | ||
| DE2326620C3 (de) * | 1973-05-25 | 1979-08-02 | Robert Bosch Gmbh, 7000 Stuttgart | Schaltungsanordnung zur Erzeugung eines Korrektursignals für die Aperturkorrektur von Videosignalen |
| DE2631335C3 (de) * | 1975-07-14 | 1979-08-09 | Victor Company Of Japan, Ltd., Yokohama, Kanagawa (Japan) | Schaltungsanordnung für frequenzmodulierte Videosignale, die von einem magnetischen Aufzeichnungsträger zur Wiedergabe abgenommen werden |
| JPS5689173A (en) * | 1979-12-20 | 1981-07-20 | Sony Corp | Vertical aperture correcting circuit |
-
1981
- 1981-10-14 DE DE19813140761 patent/DE3140761C2/de not_active Expired
-
1982
- 1982-10-13 JP JP57178607A patent/JPS58121878A/ja active Granted
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5046034A (enrdf_load_stackoverflow) * | 1973-08-28 | 1975-04-24 | ||
| JPS5068221A (enrdf_load_stackoverflow) * | 1973-10-18 | 1975-06-07 | ||
| JPS52142417A (en) * | 1976-05-21 | 1977-11-28 | Mitsubishi Electric Corp | Picture amplifying circuit |
| JPS54159210A (en) * | 1978-06-06 | 1979-12-15 | Matsushita Electric Ind Co Ltd | Emphasis circuit of fm modulator and demodulator |
| JPS5566476U (enrdf_load_stackoverflow) * | 1978-10-31 | 1980-05-08 | ||
| JPS55161408A (en) * | 1979-06-02 | 1980-12-16 | Pioneer Electronic Corp | Limiter circuit |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60217757A (ja) * | 1984-01-11 | 1985-10-31 | ドイチエ・トムソン−ブラント・ゲゼルシヤフト・ミツト・ベシユレンクテル・ハフツング | ビデオ信号の側縁急峻化回路 |
Also Published As
| Publication number | Publication date |
|---|---|
| DE3140761C2 (de) | 1983-08-11 |
| DE3140761A1 (de) | 1983-04-28 |
| JPH0134503B2 (enrdf_load_stackoverflow) | 1989-07-19 |
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