JPS6481482A - Level monitoring equipment for catv - Google Patents
Level monitoring equipment for catvInfo
- Publication number
- JPS6481482A JPS6481482A JP23848487A JP23848487A JPS6481482A JP S6481482 A JPS6481482 A JP S6481482A JP 23848487 A JP23848487 A JP 23848487A JP 23848487 A JP23848487 A JP 23848487A JP S6481482 A JPS6481482 A JP S6481482A
- Authority
- JP
- Japan
- Prior art keywords
- section
- control signal
- level
- catv
- transmission
- 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
Abstract
PURPOSE:To easily and quickly adjust the transmission level of CATV by providing an input/output terminal, a directional filter, a control signal reception section, a level measurement section and a data transmission section. CONSTITUTION:A control signal reception section 3 in connecting to the farthest end of a CATV trunk line amplifier or the like, receives its own address and a control signal relating to the measurement frequency by the polling selection from a transmission center and sends a control signal in response to the received measurement frequency to a level measurement section 4. The level measurement section 4 sets the measured frequency by a control signal from the control signal reception section 3, measures the level to send the measured data to a data transmission section 5. The data transmission section 5 adds its own address, converts the measured data to an incoming band signal and sends the result as an incoming signal. The incoming signal passes through a directional filter 2 and is sent from the input/output terminal 1. Thus, the transmission center adjusts the transmission level of each channel of the CATV and equalizes it in advance.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP23848487A JPS6481482A (en) | 1987-09-22 | 1987-09-22 | Level monitoring equipment for catv |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP23848487A JPS6481482A (en) | 1987-09-22 | 1987-09-22 | Level monitoring equipment for catv |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6481482A true JPS6481482A (en) | 1989-03-27 |
Family
ID=17030929
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP23848487A Pending JPS6481482A (en) | 1987-09-22 | 1987-09-22 | Level monitoring equipment for catv |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6481482A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH05110517A (en) * | 1991-10-21 | 1993-04-30 | Nec Corp | Optical repeater transmission system |
JPH05207321A (en) * | 1991-04-08 | 1993-08-13 | Hughes Aircraft Co | Automatic rf equalizer for video distribution system of passenger airplane |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS56158584A (en) * | 1980-05-10 | 1981-12-07 | Matsushita Electric Ind Co Ltd | Catv device |
-
1987
- 1987-09-22 JP JP23848487A patent/JPS6481482A/en active Pending
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS56158584A (en) * | 1980-05-10 | 1981-12-07 | Matsushita Electric Ind Co Ltd | Catv device |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH05207321A (en) * | 1991-04-08 | 1993-08-13 | Hughes Aircraft Co | Automatic rf equalizer for video distribution system of passenger airplane |
JPH05110517A (en) * | 1991-10-21 | 1993-04-30 | Nec Corp | Optical repeater transmission system |
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