TW200943132A - Digital board and method of obtaining position thereof - Google Patents

Digital board and method of obtaining position thereof

Info

Publication number
TW200943132A
TW200943132A TW97112867A TW97112867A TW200943132A TW 200943132 A TW200943132 A TW 200943132A TW 97112867 A TW97112867 A TW 97112867A TW 97112867 A TW97112867 A TW 97112867A TW 200943132 A TW200943132 A TW 200943132A
Authority
TW
Taiwan
Prior art keywords
antenna
control circuit
antenna loop
basic
antennas
Prior art date
Application number
TW97112867A
Other languages
Chinese (zh)
Other versions
TWI351632B (en
Inventor
huo-lu Cai
Original Assignee
Sunrex Technology 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 Sunrex Technology Corp filed Critical Sunrex Technology Corp
Priority to TW97112867A priority Critical patent/TW200943132A/en
Publication of TW200943132A publication Critical patent/TW200943132A/en
Application granted granted Critical
Publication of TWI351632B publication Critical patent/TWI351632B/zh

Links

Landscapes

  • Position Input By Displaying (AREA)
  • Variable-Direction Aerials And Aerial Arrays (AREA)

Abstract

A digital board includes a plurality of antenna loop circuits, a plurality of switches electrically connected to the corresponding the antenna loop circuits, and a control circuit. Each antenna loop circuit has a basic antenna and at least an extended antenna serially connected to the basic antenna. The serial number combination of an antenna loop circuit of any three adjacent antennas of the basic antennas and the extended antennas is unique, and the control circuit has a logic position table that stores the serial number combination and the corresponded logic position. The control circuit controls the on/off of the switch sequentially to receive an original output signal of each set of the antenna loop circuit. Further, the control circuit determines the position of a digital pen according to the logic position table.
TW97112867A 2008-04-09 2008-04-09 Digital board and method of obtaining position thereof TW200943132A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
TW97112867A TW200943132A (en) 2008-04-09 2008-04-09 Digital board and method of obtaining position thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
TW97112867A TW200943132A (en) 2008-04-09 2008-04-09 Digital board and method of obtaining position thereof

Publications (2)

Publication Number Publication Date
TW200943132A true TW200943132A (en) 2009-10-16
TWI351632B TWI351632B (en) 2011-11-01

Family

ID=44868930

Family Applications (1)

Application Number Title Priority Date Filing Date
TW97112867A TW200943132A (en) 2008-04-09 2008-04-09 Digital board and method of obtaining position thereof

Country Status (1)

Country Link
TW (1) TW200943132A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103294289A (en) * 2012-03-02 2013-09-11 禾瑞亚科技股份有限公司 Capacitive touch system and method with automatic correction function
TWI456469B (en) * 2012-03-02 2014-10-11 Egalax Empia Technology Inc Capacitive touch system and method with auto-calibration
TWI484377B (en) * 2013-04-30 2015-05-11 Sunrex Technology Corp Position detection method and system

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103294289A (en) * 2012-03-02 2013-09-11 禾瑞亚科技股份有限公司 Capacitive touch system and method with automatic correction function
TWI456469B (en) * 2012-03-02 2014-10-11 Egalax Empia Technology Inc Capacitive touch system and method with auto-calibration
CN103294289B (en) * 2012-03-02 2016-02-03 禾瑞亚科技股份有限公司 The capacitance touch control system of tool automatic calibration and method
TWI484377B (en) * 2013-04-30 2015-05-11 Sunrex Technology Corp Position detection method and system

Also Published As

Publication number Publication date
TWI351632B (en) 2011-11-01

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