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
Application number
JP1056788U
Other languages
Japanese (ja)
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed filed Critical
Priority to JP1056788U priority Critical patent/JPH01115331U/ja
Publication of JPH01115331U publication Critical patent/JPH01115331U/ja
Pending legal-status Critical Current

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Landscapes

  • Facsimile Image Signal Circuits (AREA)
  • Manipulation Of Pulses (AREA)
  • Picture Signal Circuits (AREA)

Description

【図面の簡単な説明】[Brief explanation of the drawing]

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、Q……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)

【実用新案登録請求の範囲】[Scope of utility model registration request] アナログ映像信号を前置増幅する前置増幅回路
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.
JP1056788U 1988-01-29 1988-01-29 Pending JPH01115331U (en)

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)

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