JPS5478996A - Detector for video quantized level - Google Patents
Detector for video quantized levelInfo
- Publication number
- JPS5478996A JPS5478996A JP14670577A JP14670577A JPS5478996A JP S5478996 A JPS5478996 A JP S5478996A JP 14670577 A JP14670577 A JP 14670577A JP 14670577 A JP14670577 A JP 14670577A JP S5478996 A JPS5478996 A JP S5478996A
- Authority
- JP
- Japan
- Prior art keywords
- circuit
- register
- noise
- signal
- output
- 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
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
- G01S7/02—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S13/00
- G01S7/28—Details of pulse systems
- G01S7/285—Receivers
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Radar Systems Or Details Thereof (AREA)
Abstract
PURPOSE:To pick up the effective signal component, by automatically following the level variation of the noise component in the video signal mixed in the noise and signal. CONSTITUTION:The video signal 1 is inputted to the slicer circuit 2 having the slice level of n stages. In the data storage circuit 3, the presence signal of the output is stored during a given time and detected every slice level. The output of the circuit 3 is almost only noise within normal time T and sometimes represents the maximum amplitude level of the noise during this period. The filter operation circuit 4 performs operation with the value coding the result of detection and the value of the monitor register 5 before the time T. The monitor register control circuit 7 judges whether this result is to be read in the register 5 as new noise level from the result, the value before the time T of the register 5, and the output of the first selction circuit (selecting one designated with the register 5 out of the n slicer outputs). The second selection circuit 8 selects the output quantized video 9 almost being the signal region taking offset for several levels higher for the value of the register 5 in n sets of slicer outputs.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP52146705A JPS605908B2 (en) | 1977-12-06 | 1977-12-06 | Video quantization level detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP52146705A JPS605908B2 (en) | 1977-12-06 | 1977-12-06 | Video quantization level detection device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5478996A true JPS5478996A (en) | 1979-06-23 |
| JPS605908B2 JPS605908B2 (en) | 1985-02-14 |
Family
ID=15413672
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP52146705A Expired JPS605908B2 (en) | 1977-12-06 | 1977-12-06 | Video quantization level detection device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS605908B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58151170U (en) * | 1982-03-31 | 1983-10-11 | 三菱電機株式会社 | Safety device for stair lift equipment |
-
1977
- 1977-12-06 JP JP52146705A patent/JPS605908B2/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58151170U (en) * | 1982-03-31 | 1983-10-11 | 三菱電機株式会社 | Safety device for stair lift equipment |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS605908B2 (en) | 1985-02-14 |
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