JPS5671177A - Quantizing circuit - Google Patents

Quantizing circuit

Info

Publication number
JPS5671177A
JPS5671177A JP14797579A JP14797579A JPS5671177A JP S5671177 A JPS5671177 A JP S5671177A JP 14797579 A JP14797579 A JP 14797579A JP 14797579 A JP14797579 A JP 14797579A JP S5671177 A JPS5671177 A JP S5671177A
Authority
JP
Japan
Prior art keywords
signal
threshold
quantization
amplifier
supplied
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
Application number
JP14797579A
Other languages
Japanese (ja)
Other versions
JPS6027437B2 (en
Inventor
Tetsuo Saito
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura Electric Co Ltd
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 by Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP54147975A priority Critical patent/JPS6027437B2/en
Publication of JPS5671177A publication Critical patent/JPS5671177A/en
Publication of JPS6027437B2 publication Critical patent/JPS6027437B2/en
Expired legal-status Critical Current

Links

Landscapes

  • Character Input (AREA)

Abstract

PURPOSE: To quantize the input signal surely, by switching the threshold for quantization by the average level of input analogue signals of one-frame components.
CONSTITUTION: The signal from photoelectric converter 4 is amplified by amplifier 6 and is supplied to threshold level switching part 7. This switching part 7 makes this signal binary by comparing circuit 8, and black information are counted by counter 9 under the control of control circuit 11. This count result is compared with constant L by comparing circuit 10, and by the comparision result, outputs of comparing circuits 13 and 14 different in reference voltages E2 and E3 to which the output of amplifier 6 obtained by amplifying the signal from photoelectric converter 4 is supplied are switchied and output. Thus, since the threshold can be switched and adjusted properly according to the analogue signal to be quantized, sure quantization is possible.
COPYRIGHT: (C)1981,JPO&Japio
JP54147975A 1979-11-15 1979-11-15 quantization circuit Expired JPS6027437B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP54147975A JPS6027437B2 (en) 1979-11-15 1979-11-15 quantization circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP54147975A JPS6027437B2 (en) 1979-11-15 1979-11-15 quantization circuit

Publications (2)

Publication Number Publication Date
JPS5671177A true JPS5671177A (en) 1981-06-13
JPS6027437B2 JPS6027437B2 (en) 1985-06-28

Family

ID=15442325

Family Applications (1)

Application Number Title Priority Date Filing Date
JP54147975A Expired JPS6027437B2 (en) 1979-11-15 1979-11-15 quantization circuit

Country Status (1)

Country Link
JP (1) JPS6027437B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62226388A (en) * 1986-03-28 1987-10-05 Juki Corp Binarization circuit for reader

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62166532A (en) * 1986-01-20 1987-07-23 Yamato Scient Co Ltd Opener unit for semiconductor
JPS62169336A (en) * 1986-01-22 1987-07-25 Yamato Scient Co Ltd Opener apparatus for semiconductor
JPS62286763A (en) * 1986-06-04 1987-12-12 Ricoh Co Ltd Drive control method for thermal head

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62226388A (en) * 1986-03-28 1987-10-05 Juki Corp Binarization circuit for reader

Also Published As

Publication number Publication date
JPS6027437B2 (en) 1985-06-28

Similar Documents

Publication Publication Date Title
JPS5753145A (en) Calibrator for analogue-digital converter
DE3275594D1 (en) Operation mode setting circuitry for microprocessor
JPS5520008A (en) Digital signal receiving device
JPS5671177A (en) Quantizing circuit
JPS5534704A (en) Threshold setting circuit
JPS57148413A (en) Sound absorbing device
SE8206124L (en) PROCEDURE AND DEVICE FOR ADAPTIVE ANALOG / DIGITAL TRANSFORMATION
JPS5745720A (en) Quantizing circuit
JPS5752227A (en) Data sampling circuit
JPS5761336A (en) Output protection circuit of integrated injection logical circuit
JPS57131170A (en) Picture signal processing device
JPS5671176A (en) Quantizing circuit
JPS5454632A (en) Photometric circuit of photographing apparatus
JPS57168581A (en) Adaptive quantizing circuit
JPS5744385A (en) Signal processing circuit of color video camera
JPS5738084A (en) Coding processing circuit for video signal
JPS57164605A (en) Amplifier
JPS5470719A (en) Binary coding circuit
JPS57159175A (en) Picture signal quantizing ciruit
JPS5765914A (en) Noise reducing device
JPS55150667A (en) Picture signal quantizing system
JPS5710472A (en) Ftc circuit in radar and similar device
JPS5350610A (en) Video signal processing circuit
JPS5753369A (en) Ink jet printer
JPS572122A (en) Analog-to-digital converter