NL7613141A - Toetsenbordcoderingsstelsel met elektronische hysteresis. - Google Patents

Toetsenbordcoderingsstelsel met elektronische hysteresis.

Info

Publication number
NL7613141A
NL7613141A NL7613141A NL7613141A NL7613141A NL 7613141 A NL7613141 A NL 7613141A NL 7613141 A NL7613141 A NL 7613141A NL 7613141 A NL7613141 A NL 7613141A NL 7613141 A NL7613141 A NL 7613141A
Authority
NL
Netherlands
Prior art keywords
coding system
keyboard coding
electronic hysteresis
hysteresis
electronic
Prior art date
Application number
NL7613141A
Other languages
English (en)
Original Assignee
Xerox 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 Xerox Corp filed Critical Xerox Corp
Publication of NL7613141A publication Critical patent/NL7613141A/nl

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
    • H03K17/94—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the way in which the control signals are generated
    • H03K17/965—Switches controlled by moving an element forming part of the switch
    • H03K17/975—Switches controlled by moving an element forming part of the switch using a capacitive movable element
    • H03K17/98—Switches controlled by moving an element forming part of the switch using a capacitive movable element having a plurality of control members, e.g. keyboard
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M11/00—Coding in connection with keyboards or like devices, i.e. coding of the position of operated keys
    • H03M11/02—Details
NL7613141A 1975-11-25 1976-11-25 Toetsenbordcoderingsstelsel met elektronische hysteresis. NL7613141A (nl)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US05/634,976 US4037225A (en) 1975-11-25 1975-11-25 Keyboard encoding system with electronic hysteresis

Publications (1)

Publication Number Publication Date
NL7613141A true NL7613141A (nl) 1977-05-27

Family

ID=24545905

Family Applications (1)

Application Number Title Priority Date Filing Date
NL7613141A NL7613141A (nl) 1975-11-25 1976-11-25 Toetsenbordcoderingsstelsel met elektronische hysteresis.

Country Status (5)

Country Link
US (1) US4037225A (nl)
JP (1) JPS5265621A (nl)
CA (1) CA1091783A (nl)
DE (1) DE2653393A1 (nl)
NL (1) NL7613141A (nl)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4390866A (en) * 1971-05-19 1983-06-28 Illinois Tool Works Inc. Keyboard with electronic hysteresis
US4186392A (en) * 1978-07-28 1980-01-29 Burroughs Corporation Touch panel and operating system
US4405917A (en) * 1981-04-28 1983-09-20 Honeywell Inc. Matrix screening and grounding arrangement and method
US4704601A (en) * 1985-06-27 1987-11-03 Illinois Tool Works Inc. Keyboard data entry system with hysteresis

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3918051A (en) * 1971-05-19 1975-11-04 Illinois Tool Works N-key rollover keyboard
US3716850A (en) * 1971-12-21 1973-02-13 Ibm Synchronous detector for monopulse key sampling electronic keyboard
US3786497A (en) * 1972-07-31 1974-01-15 Ibm Matrix keyboard method and apparatus

Also Published As

Publication number Publication date
JPS5265621A (en) 1977-05-31
CA1091783A (en) 1980-12-16
US4037225A (en) 1977-07-19
DE2653393A1 (de) 1977-05-26

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Legal Events

Date Code Title Description
BV The patent application has lapsed