JPS6473825A - Analog-digital converter - Google Patents

Analog-digital converter

Info

Publication number
JPS6473825A
JPS6473825A JP23078787A JP23078787A JPS6473825A JP S6473825 A JPS6473825 A JP S6473825A JP 23078787 A JP23078787 A JP 23078787A JP 23078787 A JP23078787 A JP 23078787A JP S6473825 A JPS6473825 A JP S6473825A
Authority
JP
Japan
Prior art keywords
overflow
detection circuit
output
level detection
level
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
JP23078787A
Other languages
Japanese (ja)
Other versions
JPH0644711B2 (en
Inventor
Teruyoshi Nakabashi
Tetsuji Ono
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.)
Teac Corp
Original Assignee
Teac Corp
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 Teac Corp filed Critical Teac Corp
Priority to JP62230787A priority Critical patent/JPH0644711B2/en
Publication of JPS6473825A publication Critical patent/JPS6473825A/en
Publication of JPH0644711B2 publication Critical patent/JPH0644711B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Landscapes

  • Analogue/Digital Conversion (AREA)

Abstract

PURPOSE:To prevent an unpleasant noise from being generated, by detecting a level by which the subtraction of dither is impossible to be performed due to input large in amplitude, and limiting a part left not being subtracted by a limiter. CONSTITUTION:A level detection circuit 21 is provided with a plus side overflow level detection circuit 22 and a minus side overflow level detection circuit 23 connected to the output of an arithmetic circuit 10, and those output are connected to the limiter 11 and a display unit 20 via an OR gate 24. The limiter 11 is constituted so that it can continue to output the value of an overflow level L1 or L2 only in an overflow period corresponding to the output (high level) representing the overflow generated from the level detection circuit 21. In such a way, no fluctuation (noise) due to the dither can be outputted, and an unpleasant sound can be reduced.
JP62230787A 1987-09-14 1987-09-14 Analog-to-digital converter Expired - Lifetime JPH0644711B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62230787A JPH0644711B2 (en) 1987-09-14 1987-09-14 Analog-to-digital converter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62230787A JPH0644711B2 (en) 1987-09-14 1987-09-14 Analog-to-digital converter

Publications (2)

Publication Number Publication Date
JPS6473825A true JPS6473825A (en) 1989-03-20
JPH0644711B2 JPH0644711B2 (en) 1994-06-08

Family

ID=16913263

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62230787A Expired - Lifetime JPH0644711B2 (en) 1987-09-14 1987-09-14 Analog-to-digital converter

Country Status (1)

Country Link
JP (1) JPH0644711B2 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008175403A (en) * 2006-12-18 2008-07-31 Nichicon Corp Pass box
JP4801216B1 (en) * 2010-11-29 2011-10-26 福代 釜須 Magnifier for writing instruments
JP2015088852A (en) * 2013-10-29 2015-05-07 キヤノン株式会社 Image processing apparatus, imaging apparatus, image processing method, and program

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5887914A (en) * 1981-11-18 1983-05-25 Mitsubishi Electric Corp Output circuit of analog-to-digital conversion
JPS62112221U (en) * 1985-12-27 1987-07-17
JPS62207028A (en) * 1986-03-07 1987-09-11 Teac Co Digital-analog converter

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5887914A (en) * 1981-11-18 1983-05-25 Mitsubishi Electric Corp Output circuit of analog-to-digital conversion
JPS62112221U (en) * 1985-12-27 1987-07-17
JPS62207028A (en) * 1986-03-07 1987-09-11 Teac Co Digital-analog converter

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008175403A (en) * 2006-12-18 2008-07-31 Nichicon Corp Pass box
JP4801216B1 (en) * 2010-11-29 2011-10-26 福代 釜須 Magnifier for writing instruments
JP2015088852A (en) * 2013-10-29 2015-05-07 キヤノン株式会社 Image processing apparatus, imaging apparatus, image processing method, and program

Also Published As

Publication number Publication date
JPH0644711B2 (en) 1994-06-08

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