JPS5773447A - Input device of position information - Google Patents

Input device of position information

Info

Publication number
JPS5773447A
JPS5773447A JP55149793A JP14979380A JPS5773447A JP S5773447 A JPS5773447 A JP S5773447A JP 55149793 A JP55149793 A JP 55149793A JP 14979380 A JP14979380 A JP 14979380A JP S5773447 A JPS5773447 A JP S5773447A
Authority
JP
Japan
Prior art keywords
tablet
antennas
pen
input device
supplied
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
JP55149793A
Other languages
Japanese (ja)
Inventor
Katsuhiro Onoda
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.)
NEC Corp
Original Assignee
NEC Corp
Nippon 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 NEC Corp, Nippon Electric Co Ltd filed Critical NEC Corp
Priority to JP55149793A priority Critical patent/JPS5773447A/en
Publication of JPS5773447A publication Critical patent/JPS5773447A/en
Pending legal-status Critical Current

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
    • G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • G06F3/046—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by electromagnetic means

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Electromagnetism (AREA)
  • Human Computer Interaction (AREA)
  • General Physics & Mathematics (AREA)

Abstract

PURPOSE:To install an input device of position information of the information process system at an easy-to-use position for the free use, by installing a loop-shaped antenna at both sides of a tablet respectively. CONSTITUTION:Receiving loop-shaped antennas 30 and 31 are set at the right and left sides of a tablet 12. When an indication pen 23 is on one board face of the tablet 12, the reception signals of both antennas 30 and 31 produced by the radiated electric waves are added to each other to be supplied to a receiving part 36. In case the pen 23 goes beyond the antenna 30 or 31 and at a position outside the tablet 12, the reception signals of both antennas are offset to each other with the reverse phase. As a result, the signals to be supplied to the part 36 is extremely attenuated to be substantially O in case the space between the pen 23 and the tablet 12 is large enough compared with the space between the antennas 30 and 31. Accordingly no distrubance is given from other devices.
JP55149793A 1980-10-24 1980-10-24 Input device of position information Pending JPS5773447A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55149793A JPS5773447A (en) 1980-10-24 1980-10-24 Input device of position information

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55149793A JPS5773447A (en) 1980-10-24 1980-10-24 Input device of position information

Publications (1)

Publication Number Publication Date
JPS5773447A true JPS5773447A (en) 1982-05-08

Family

ID=15482832

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55149793A Pending JPS5773447A (en) 1980-10-24 1980-10-24 Input device of position information

Country Status (1)

Country Link
JP (1) JPS5773447A (en)

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