JPH01115331U - - Google Patents
Info
- Publication number
- JPH01115331U JPH01115331U JP1056788U JP1056788U JPH01115331U JP H01115331 U JPH01115331 U JP H01115331U JP 1056788 U JP1056788 U JP 1056788U JP 1056788 U JP1056788 U JP 1056788U JP H01115331 U JPH01115331 U JP H01115331U
- Authority
- JP
- Japan
- Prior art keywords
- circuit
- analog video
- video signal
- threshold
- preamplifier
- 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
- 230000008929 regeneration Effects 0.000 claims description 2
- 238000011069 regeneration method Methods 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 2
Landscapes
- Facsimile Image Signal Circuits (AREA)
- Manipulation Of Pulses (AREA)
- Picture Signal Circuits (AREA)
Description
第１図は、この考案のアナログ映像信号用２値
化回路の一実施例を示す回路図、第２図は、従来
のアナログ映像信号用ＡＤ変換器の一例を示す回
路図である。
１１……アナログ映像信号用２値化回路、１２
……前置増幅回路、１３……直流再生回路、１４
……閾値判別回路、Ｑ５……閾値判別用トランジ
スタ。
FIG. 1 is a circuit diagram showing an embodiment of the analog video signal binarization circuit of this invention, and FIG. 2 is a circuit diagram showing an example of a conventional analog video signal AD converter. 11... Binarization circuit for analog video signal, 12
... Preamplifier circuit, 13 ... DC regeneration circuit, 14
...Threshold value discrimination circuit, Q5 ...Threshold value discrimination transistor.
Claims (1)
と、この前置増幅回路により増幅されたアナログ
映像信号を直流再生する直流再生回路と、この直
流再生回路により直流再生されたアナログ映像信
号を、トランジスタのベース・エミツタ間電圧を
閾値として２値判別する閾値判別回路からなるア
ナログ映像信号用２値化回路。 A preamplifier circuit that preamplifies an analog video signal, a DC regeneration circuit that regenerates the analog video signal amplified by the preamplifier circuit, and a transistor A binarization circuit for analog video signals comprising a threshold discrimination circuit that discriminates between two values using the base-emitter voltage as a threshold.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1056788U JPH01115331U (en) | 1988-01-29 | 1988-01-29 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1056788U JPH01115331U (en) | 1988-01-29 | 1988-01-29 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01115331U true JPH01115331U (en) | 1989-08-03 |
Family
ID=31218343
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1056788U Pending JPH01115331U (en) | 1988-01-29 | 1988-01-29 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01115331U (en) |
-
1988
- 1988-01-29 JP JP1056788U patent/JPH01115331U/ja active Pending