JPS5547739A - Input circuit - Google Patents

Input circuit

Info

Publication number
JPS5547739A
JPS5547739A JP12072978A JP12072978A JPS5547739A JP S5547739 A JPS5547739 A JP S5547739A JP 12072978 A JP12072978 A JP 12072978A JP 12072978 A JP12072978 A JP 12072978A JP S5547739 A JPS5547739 A JP S5547739A
Authority
JP
Japan
Prior art keywords
circuit
priority
output
row
column
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
JP12072978A
Other languages
Japanese (ja)
Inventor
Tsuneaki Sakai
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 JP12072978A priority Critical patent/JPS5547739A/en
Publication of JPS5547739A publication Critical patent/JPS5547739A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03J—TUNING RESONANT CIRCUITS; SELECTING RESONANT CIRCUITS
    • H03J5/00—Discontinuous tuning; Selecting predetermined frequencies; Selecting frequency bands with or without continuous tuning in one or more of the bands, e.g. push-button tuning, turret tuner
    • H03J5/02—Discontinuous tuning; Selecting predetermined frequencies; Selecting frequency bands with or without continuous tuning in one or more of the bands, e.g. push-button tuning, turret tuner with variable tuning element having a number of predetermined settings and adjustable to a desired one of these settings

Abstract

PURPOSE:To enable to select one key switch according to the priority even if two or more key switches are depressed at the same time, by providing the priority circuit having a given regularity. CONSTITUTION:The clock pulse in time sharing is fed to the row output terminal of the keyboard 11 from the common signal generation circuit 12, the output signal from the clumn output terminal is detected at the detection circuit 14 to open the first gate circuit 13, clock pulse is fetched to the row latch circuit 16, and output is made from the row priority circuit 17 according to a given priority. On the other hand, the second gate circuit 15 is opened with the control signal generation circuit 20, the output signal from the clumn output terminal is fetched to the column latch circuit 18, and output is made from the column priority circuit 19 according to a given priority. Further, the output signal from the row and column priority circuits 17 and 18 is fed to the control circuit 22 to select the number of key switch.
JP12072978A 1978-09-30 1978-09-30 Input circuit Pending JPS5547739A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12072978A JPS5547739A (en) 1978-09-30 1978-09-30 Input circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12072978A JPS5547739A (en) 1978-09-30 1978-09-30 Input circuit

Publications (1)

Publication Number Publication Date
JPS5547739A true JPS5547739A (en) 1980-04-04

Family

ID=14793541

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12072978A Pending JPS5547739A (en) 1978-09-30 1978-09-30 Input circuit

Country Status (1)

Country Link
JP (1) JPS5547739A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57176447A (en) * 1981-04-24 1982-10-29 Fujitsu Ltd A plurality word instantaneous input type digital input circuit system
WO1984002594A1 (en) * 1982-12-24 1984-07-05 Fanuc Ltd System for preventing erroneous key operation
US4680572A (en) * 1981-12-14 1987-07-14 Ncr Corporation Chord entry keying of data fields

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57176447A (en) * 1981-04-24 1982-10-29 Fujitsu Ltd A plurality word instantaneous input type digital input circuit system
JPS636896B2 (en) * 1981-04-24 1988-02-12 Fujitsu Ltd
US4680572A (en) * 1981-12-14 1987-07-14 Ncr Corporation Chord entry keying of data fields
WO1984002594A1 (en) * 1982-12-24 1984-07-05 Fanuc Ltd System for preventing erroneous key operation

Similar Documents

Publication Publication Date Title
KR910017865A (en) Data entry device
GB1103538A (en) Electrical switching circuit
JPS5547739A (en) Input circuit
GB1406625A (en) Signal-selecting system for a keyboard type electronic musical instrument
JPS53139520A (en) Electronic musical instrument
GB1410811A (en) Keyboard apparatus
JPS5515532A (en) Character input system
JPS533122A (en) Input unit
GB1388737A (en) Electronic keyboard
JPS6455650A (en) Device operation mode switching circuit
JPS5687929A (en) Switch circuit
JPS5792991A (en) Remote control device
JPS5593083A (en) Electronic watch with delay function
JPS5494230A (en) Input unit
JPS52122152A (en) Case structure of electronic wristwach
JPS5680731A (en) Key input circuit
SU955011A2 (en) Data input device
JPS56132657A (en) Electronic register
JPS5614979A (en) Generating device of correcting signal for electronic watch
JPS52104909A (en) Electronic musical instrument
JPS5567831A (en) Input device
JPS5473520A (en) Keyboard input circuit
JPS5215231A (en) Multifunction keyboard
JPS6486271A (en) Accumulator
JPS5313836A (en) Switch for watch with electronic computer