JPS5652986A - Video signal regenerative circuit - Google Patents
Video signal regenerative circuitInfo
- Publication number
- JPS5652986A JPS5652986A JP12895279A JP12895279A JPS5652986A JP S5652986 A JPS5652986 A JP S5652986A JP 12895279 A JP12895279 A JP 12895279A JP 12895279 A JP12895279 A JP 12895279A JP S5652986 A JPS5652986 A JP S5652986A
- Authority
- JP
- Japan
- Prior art keywords
- signal
- stage amplifier
- level
- output
- color
- 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
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N9/00—Details of colour television systems
- H04N9/79—Processing of colour television signals in connection with recording
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F1/00—Details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements
- H03F1/42—Modifications of amplifiers to extend the bandwidth
- H03F1/48—Modifications of amplifiers to extend the bandwidth of aperiodic amplifiers
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Power Engineering (AREA)
Abstract
PURPOSE:To put in order the level of a color signal and an FM signal, obtain the level of the desired color signal and FM signal by the next stage amplifier, and make the amplifier for a regenerative color unnecessary, by feeding back an output of the first stage amplifier to the input part negatively enough, and damping it. CONSTITUTION:The signal voltage which has been induced by the head 1 is input to the preamplifier IC 12 from the terminal 4. An output of this first stage amplifier 5 is negatively fed back to the input part through the damping resistor 6, and is damped enough. Subsequently, it is amplified to a fixed level signal by the post- stage amplifier 7, the emitter-follower output terminal 9 is made a common terminal, and one outputs a color signal component 14 through the low-pass filter 13, and the other outputs an FM signal through the FM peaking circuit 15.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12895279A JPS5652986A (en) | 1979-10-08 | 1979-10-08 | Video signal regenerative circuit |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12895279A JPS5652986A (en) | 1979-10-08 | 1979-10-08 | Video signal regenerative circuit |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5652986A true JPS5652986A (en) | 1981-05-12 |
JPS6128274B2 JPS6128274B2 (en) | 1986-06-30 |
Family
ID=14997460
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP12895279A Granted JPS5652986A (en) | 1979-10-08 | 1979-10-08 | Video signal regenerative circuit |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5652986A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS59105786A (en) * | 1982-12-10 | 1984-06-19 | Hitachi Ltd | Preamplifier integrated circuit |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3513267A (en) * | 1966-05-16 | 1970-05-19 | Ampex | Low input impedance playback preamplifier for swamping out head resonance in a video tape reproducing system |
-
1979
- 1979-10-08 JP JP12895279A patent/JPS5652986A/en active Granted
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3513267A (en) * | 1966-05-16 | 1970-05-19 | Ampex | Low input impedance playback preamplifier for swamping out head resonance in a video tape reproducing system |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS59105786A (en) * | 1982-12-10 | 1984-06-19 | Hitachi Ltd | Preamplifier integrated circuit |
JPH0156592B2 (en) * | 1982-12-10 | 1989-11-30 | Hitachi Ltd |
Also Published As
Publication number | Publication date |
---|---|
JPS6128274B2 (en) | 1986-06-30 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JPS57206113A (en) | Amplifier for limiter | |
JPS5652986A (en) | Video signal regenerative circuit | |
GB1148327A (en) | Improvements in or relating to circuit arrangements for controlling the level of a video signal | |
JPS5646314A (en) | Equalizing amplifier | |
ES2003684A6 (en) | Display driver amplifier with anti-saturation circuit | |
JPS55163970A (en) | Color solid-state pickup unit | |
JPS57199396A (en) | Speaker input controlling circuit | |
JPS57164603A (en) | Amplifier | |
JPS5677710A (en) | Zero-point adjusting circuit | |
JPS57109467A (en) | Video camera | |
JPS55151857A (en) | Abc device for facsimile | |
JPS57111112A (en) | Variable gain amplifier | |
JPS56114414A (en) | Amplifying circuit | |
SU362415A1 (en) | BMBLIO. '? KA | |
JPS54130110A (en) | Magnetic recording circuit | |
JPS56103511A (en) | Monolithic semiconductor integrated circuit | |
JPS53149715A (en) | Correcting device for contour | |
JPS5661868A (en) | Contour compensating circuit for picture signal | |
JPS5694806A (en) | Distortion decreasing system of amplifying circuit | |
JPS5739605A (en) | Preamplifier | |
JPS56158515A (en) | Clamp circuit | |
JPS57127312A (en) | Signal amplifying circuit | |
JPS57169909A (en) | Head amplifying circuit | |
JPS535553A (en) | Amplifier | |
DE3169247D1 (en) | Active tone control circuit of a transistor hearing apparatus amplifier with two or more stages |