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JPS57154938A - Input recognizing circuit - Google Patents

Input recognizing circuit

Info

Publication number
JPS57154938A
JPS57154938A JP56041438A JP4143881A JPS57154938A JP S57154938 A JPS57154938 A JP S57154938A JP 56041438 A JP56041438 A JP 56041438A JP 4143881 A JP4143881 A JP 4143881A JP S57154938 A JPS57154938 A JP S57154938A
Authority
JP
Japan
Prior art keywords
level
output
delivered
switch
output terminal
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
JP56041438A
Other languages
Japanese (ja)
Inventor
Yuji Sakaida
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.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric 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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP56041438A priority Critical patent/JPS57154938A/en
Publication of JPS57154938A publication Critical patent/JPS57154938A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M7/00—Conversion of a code where information is represented by a given sequence or number of digits to a code where the same, similar or subset of information is represented by a different sequence or number of digits
    • H03M7/001—Conversion of a code where information is represented by a given sequence or number of digits to a code where the same, similar or subset of information is represented by a different sequence or number of digits characterised by the elements used
    • H03M7/005—Conversion of a code where information is represented by a given sequence or number of digits to a code where the same, similar or subset of information is represented by a different sequence or number of digits characterised by the elements used using semiconductor devices

Landscapes

  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Electric Clocks (AREA)
  • Input From Keyboards Or The Like (AREA)
  • Electronic Switches (AREA)

Abstract

PURPOSE:To obtain the signals showing the states of H level, L level and high impedance of an input at the output of a logical circuit, by supplying of each of the above-mentioned states to the logical circuit. CONSTITUTION:When a switch 11 is set at the upper side, i.e., the positive side (H level), the state of each point of a logical circuit is shown in the table 1. An H level output is delivered only at an output terminal 36. While when the switch 11 is set at the lower side, i.e., the earth side (L level), the state of each point of the circuit is shown in the table 2. The H level output is delivered only at an output terminal 37. When the switch 11 is in an unsteady state, i.e., at a high impedance, the H level is delivered only at an output terminal 38.
JP56041438A 1981-03-19 1981-03-19 Input recognizing circuit Pending JPS57154938A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56041438A JPS57154938A (en) 1981-03-19 1981-03-19 Input recognizing circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56041438A JPS57154938A (en) 1981-03-19 1981-03-19 Input recognizing circuit

Publications (1)

Publication Number Publication Date
JPS57154938A true JPS57154938A (en) 1982-09-24

Family

ID=12608374

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56041438A Pending JPS57154938A (en) 1981-03-19 1981-03-19 Input recognizing circuit

Country Status (1)

Country Link
JP (1) JPS57154938A (en)

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