JPS5444577A - Level display circuit - Google Patents

Level display circuit

Info

Publication number
JPS5444577A
JPS5444577A JP11088077A JP11088077A JPS5444577A JP S5444577 A JPS5444577 A JP S5444577A JP 11088077 A JP11088077 A JP 11088077A JP 11088077 A JP11088077 A JP 11088077A JP S5444577 A JPS5444577 A JP S5444577A
Authority
JP
Japan
Prior art keywords
analog signal
display device
pulse
signal
input analog
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
JP11088077A
Other languages
Japanese (ja)
Other versions
JPS6052381B2 (en
Inventor
Takeshi Kutaragi
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.)
Sony Corp
Original Assignee
Sony 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 Sony Corp filed Critical Sony Corp
Priority to JP11088077A priority Critical patent/JPS6052381B2/en
Publication of JPS5444577A publication Critical patent/JPS5444577A/en
Publication of JPS6052381B2 publication Critical patent/JPS6052381B2/en
Expired legal-status Critical Current

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  • Measurement Of Current Or Voltage (AREA)

Abstract

PURPOSE: To enable whether display device is defective or not to be readily discriminated by lighting the element corresponding to the minimum analog quantity out of a plurality of elements corresponding to input analog signal at all times.
CONSTITUTION: Input analog signal is envelope-detected in the detection circuit 3 of a voltage-pulse number converting circuit 10, and is compared with the saw tooth wave havig undergone frequency division 8 and conversion 9 of the reference clock pulse Pa from a reference oscillator 7 in a comparator 6, whose output is then supplied to an AND gate 11 and is serially converted to the pulse signal Pf of the level corresponding to the input analog signal. This pulse signal Pf is supplied to a level display device 16 and is analog-displayed by the plural elements S1, S2... of its liquid display plate. Here, only the element number corresponding to the minimum analog quantity is lighted at all times irrespective of the analog signal. Then, if there is any defect in the display device, it may be immediately discriminated.
COPYRIGHT: (C)1979,JPO&Japio
JP11088077A 1977-09-14 1977-09-14 Level display circuit Expired JPS6052381B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11088077A JPS6052381B2 (en) 1977-09-14 1977-09-14 Level display circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11088077A JPS6052381B2 (en) 1977-09-14 1977-09-14 Level display circuit

Publications (2)

Publication Number Publication Date
JPS5444577A true JPS5444577A (en) 1979-04-09
JPS6052381B2 JPS6052381B2 (en) 1985-11-19

Family

ID=14547027

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11088077A Expired JPS6052381B2 (en) 1977-09-14 1977-09-14 Level display circuit

Country Status (1)

Country Link
JP (1) JPS6052381B2 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0450456Y2 (en) * 1986-12-15 1992-11-27

Also Published As

Publication number Publication date
JPS6052381B2 (en) 1985-11-19

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