JPS56119526A - Signal binary coding device - Google Patents
Signal binary coding deviceInfo
- Publication number
- JPS56119526A JPS56119526A JP2155980A JP2155980A JPS56119526A JP S56119526 A JPS56119526 A JP S56119526A JP 2155980 A JP2155980 A JP 2155980A JP 2155980 A JP2155980 A JP 2155980A JP S56119526 A JPS56119526 A JP S56119526A
- Authority
- JP
- Japan
- Prior art keywords
- signal
- signals
- sampling
- blind sector
- comparators
- 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
- 238000005070 sampling Methods 0.000 abstract 3
- 230000003111 delayed effect Effects 0.000 abstract 1
- 230000000630 rising effect Effects 0.000 abstract 1
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K5/00—Manipulating of pulses not covered by one of the other main groups of this subclass
- H03K5/01—Shaping pulses
- H03K5/08—Shaping pulses by limiting; by thresholding; by slicing, i.e. combined limiting and thresholding
- H03K5/082—Shaping pulses by limiting; by thresholding; by slicing, i.e. combined limiting and thresholding with an adaptive threshold
Landscapes
- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- Picture Signal Circuits (AREA)
- Facsimile Image Signal Circuits (AREA)
- Manipulation Of Pulses (AREA)
Abstract
PURPOSE:To follow a minute signal change without distortion of the signal, by sampling and holding the video signal in time series and by comparing the deviation between adjacent sampling signals with a prescribed blind sector reference value to decide it. CONSTITUTION:The video signal from image pickup tube 10 is sampled synchronously with clocks of clock generating circuit 20 by sample holding circuit 11 to obtain sampling signal 6. Singal 6 is delayed by delay circuit 12 and becomes one- clock delay signal 22. The differece components between signals 6 and signal 22 are obtained by differential amplifier 13, and amplifier 13 generates difference signal 23 and inputs it to comparators 14 and 15. Comparators 14 and 15 compare blind sector values delta and -delta from blind sector value setting equipments 16 and 17 with signal 23 to obtain binary UP signal 24 and DOWN signal 25. Singals 24 and 25 indicate rising and falling of the signal, respectively, and these signals are inputted to FF18 to binary signal 26.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2155980A JPS56119526A (en) | 1980-02-25 | 1980-02-25 | Signal binary coding device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2155980A JPS56119526A (en) | 1980-02-25 | 1980-02-25 | Signal binary coding device |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS56119526A true JPS56119526A (en) | 1981-09-19 |
Family
ID=12058361
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2155980A Pending JPS56119526A (en) | 1980-02-25 | 1980-02-25 | Signal binary coding device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS56119526A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6059868A (en) * | 1983-09-12 | 1985-04-06 | Canon Inc | Binary-coding circuit |
JPS63304767A (en) * | 1987-06-05 | 1988-12-13 | Mitsubishi Electric Corp | Picture binarization device |
JPH01191519A (en) * | 1988-01-27 | 1989-08-01 | Nissan Motor Co Ltd | Picture processor |
-
1980
- 1980-02-25 JP JP2155980A patent/JPS56119526A/en active Pending
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6059868A (en) * | 1983-09-12 | 1985-04-06 | Canon Inc | Binary-coding circuit |
JPS63304767A (en) * | 1987-06-05 | 1988-12-13 | Mitsubishi Electric Corp | Picture binarization device |
JPH01191519A (en) * | 1988-01-27 | 1989-08-01 | Nissan Motor Co Ltd | Picture processor |
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