JPS5448118A - Catv head-end device - Google Patents
Catv head-end deviceInfo
- Publication number
- JPS5448118A JPS5448118A JP11502177A JP11502177A JPS5448118A JP S5448118 A JPS5448118 A JP S5448118A JP 11502177 A JP11502177 A JP 11502177A JP 11502177 A JP11502177 A JP 11502177A JP S5448118 A JPS5448118 A JP S5448118A
- Authority
- JP
- Japan
- Prior art keywords
- circuit
- video
- ghost
- catv head
- end device
- 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.)
- Pending
Links
Landscapes
- Picture Signal Circuits (AREA)
- Details Of Television Systems (AREA)
Abstract
PURPOSE: To ensure transmission of high-quality picture by inserting the ghost reducing circuit to the CATV head-end divice.
CONSTITUTION: The output signal of intermediate frequecny amplifier circuit 15 is detected and amplified through video detector circuit 18 and the video amplidier circuit, and then led to signal process circuit 20 such as the ghost reducing circuit or the like. Then the video signal with the ghost reduced is modulated through molduator circuit 23 and then transmitted to coaxial cable 50 through output terminal 12 and via the amplifier circuit
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11502177A JPS5448118A (en) | 1977-09-24 | 1977-09-24 | Catv head-end device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11502177A JPS5448118A (en) | 1977-09-24 | 1977-09-24 | Catv head-end device |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5448118A true JPS5448118A (en) | 1979-04-16 |
Family
ID=14652272
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP11502177A Pending JPS5448118A (en) | 1977-09-24 | 1977-09-24 | Catv head-end device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5448118A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH03222581A (en) * | 1990-01-29 | 1991-10-01 | Nec Home Electron Ltd | Ghost elimination system |
-
1977
- 1977-09-24 JP JP11502177A patent/JPS5448118A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH03222581A (en) * | 1990-01-29 | 1991-10-01 | Nec Home Electron Ltd | Ghost elimination system |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JPS5290225A (en) | Television clock | |
JPS5448118A (en) | Catv head-end device | |
JPS5212517A (en) | Binalizing device of video signal | |
JPS53100722A (en) | Informing device for television display | |
JPS53126817A (en) | Level controller of video signal | |
JPS5216919A (en) | Television device | |
JPS6478079A (en) | Solid-state image pickup device camera whose head part and signal control part are separated by cable | |
JPS53148917A (en) | Aural signal isolator | |
JPS546416A (en) | Recorder for television picture | |
JPS5237705A (en) | Tuner unit of television receiver | |
JPS5379312A (en) | Screen set sytem for static picture transmission | |
JPS5332611A (en) | Receiver for dynamic and still picture | |
JPS5277519A (en) | Tv equipment | |
JPS53102625A (en) | Transmission system of horizontal blanking waveform for television signal | |
JPS5291321A (en) | Television receiver | |
JPS5386522A (en) | Signal converting system | |
JPS53148325A (en) | Television receiver | |
JPS53118930A (en) | Television receiver | |
JPS5423425A (en) | Beam index color television picture receiver | |
JPS5592081A (en) | Adjustment unit of television receiver | |
JPS53118929A (en) | Television receiver | |
JPS5397724A (en) | Television picture receiver possessing waveform display function | |
JPS53125716A (en) | Transmission and reception unit for television signal | |
JPS5313824A (en) | Video information monitor unit | |
JPS5514784A (en) | Television picture receiver |