MY120528A - Keyboard with expandable function keys - Google Patents

Keyboard with expandable function keys

Info

Publication number
MY120528A
MY120528A MYUI98000332A MYUI9800332A MY120528A MY 120528 A MY120528 A MY 120528A MY UI98000332 A MYUI98000332 A MY UI98000332A MY UI9800332 A MYUI9800332 A MY UI9800332A MY 120528 A MY120528 A MY 120528A
Authority
MY
Malaysia
Prior art keywords
keyboard
function keys
microprocessor
operator
scanning matrix
Prior art date
Application number
MYUI98000332A
Inventor
Rich Chen
Original Assignee
Ejt Technologies Inc
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
Priority claimed from US08/955,923 external-priority patent/US5897257A/en
Application filed by Ejt Technologies Inc filed Critical Ejt Technologies Inc
Publication of MY120528A publication Critical patent/MY120528A/en

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/02—Input arrangements using manually operated switches, e.g. using keyboards or dials
    • G06F3/0202—Constructional details or processes of manufacture of the input device
    • G06F3/0219—Special purpose keyboards
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F11/00—Error detection; Error correction; Monitoring
    • G06F11/30—Monitoring
    • G06F11/32—Monitoring with visual or acoustical indication of the functioning of the machine
    • G06F11/324—Display of status information
    • G06F11/325—Display of status information by lamps or LED's

Landscapes

  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Quality & Reliability (AREA)
  • Human Computer Interaction (AREA)
  • Input From Keyboards Or The Like (AREA)

Abstract

THE SUBJECT INVENTION RELATES TO A TYPE OF KEYBOARD (1) WITH EXPANDABLE FUNCTION KEYS (2), ON THE KEYBOARD (1) ARE A NUMBER OF EXPANDED FUNCTION KEYS (2), SAID FUNCTION KEYS (2) ARE CONNECTED TO THE ADDITIONAL I/O CABLE (111) FOR THE MICROPROCESSOR (11) IN THE CIRCUIT STRUCTURE IN THE KEYBOARD (1), TO COORDINATE WITH THE ORIGINAL KEYBOARD SCANNING MATRIX, FORMING A NEW SCANNING MATRIX, HENCE THE DEFAULT CODES OF SAID FUNCTION KEYS (2) MAY COORDINATE WITH THE EXECUTION OF THE APPLICATION PROGRAMS IN THE WINDOW SYSTEM, SO THE OPERATOR MAY DIRECTLY CONTROL THE EXISTING FUNCTIONS OF A PERIPHERAL DEVICE (MULTIMEDIA) ON THE KEYBOARD (1), WITH THE CONTROL PANEL OPERATION DISPLAYED ON THE MONITOR SCREEN, WITH ONE IRQ CONNECTOR PIN OF SAID MICROPROCESSOR (11) BEING CONNECTED JOINTLY TO THE NEGATIVE POLES OF THREE LED DIODES (DO, D1, D2) , WHILE THE POSITIVE POLES OF EACH LED DIODE IS CONNECTED TO ONE LINE OF THE SCANNING MATRIX, SO SAID KEYBOARD (1) MAY BE COMPATIBLE WITH AN XT MICROPROCESSOR (11) IN ITS APPLICATION; SO SAID FUNCTION KEYS (2) MAY BE DEFINED IN THE ORIGINAL SCANNING MATRIX THAT HAS NOT YET BEEN DEFINED, AND THE OPERATOR MAY DIRECTLY CONTROL THE EXISTING FUNCTIONS OF A PERIPHERAL DEVICE ON THE KEYBOARD (1); AND THAT SAID FUNCTION KEYS (2) MAY BE SET TO "IN-USE" MODE AS REQUIRED BY THE OPERATOR.
MYUI98000332A 1997-10-22 1998-01-26 Keyboard with expandable function keys MY120528A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US08/955,923 US5897257A (en) 1997-10-22 1997-10-22 Keyboard with expandable function keys

Publications (1)

Publication Number Publication Date
MY120528A true MY120528A (en) 2005-11-30

Family

ID=47257108

Family Applications (1)

Application Number Title Priority Date Filing Date
MYUI98000332A MY120528A (en) 1997-10-22 1998-01-26 Keyboard with expandable function keys

Country Status (2)

Country Link
KR (1) KR200288771Y1 (en)
MY (1) MY120528A (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR200485333Y1 (en) 2017-09-25 2017-12-22 김춘백 Ladder with traction equipment
KR200487727Y1 (en) 2018-03-15 2018-10-25 이철아 Removable ladder for working orchard
KR102449961B1 (en) * 2022-03-14 2022-10-04 (주)에스엘미디어 Peripheral equipment control system using toggle key of a keyboard

Also Published As

Publication number Publication date
KR19990017363U (en) 1999-05-25
KR200288771Y1 (en) 2002-11-18

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