JPH0383113A - Coordinate detector - Google Patents

Coordinate detector

Info

Publication number
JPH0383113A
JPH0383113A JP22106389A JP22106389A JPH0383113A JP H0383113 A JPH0383113 A JP H0383113A JP 22106389 A JP22106389 A JP 22106389A JP 22106389 A JP22106389 A JP 22106389A JP H0383113 A JPH0383113 A JP H0383113A
Authority
JP
Japan
Prior art keywords
output
coordinate detection
detection signal
influence
read
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.)
Granted
Application number
JP22106389A
Other languages
Japanese (ja)
Other versions
JPH0816860B2 (en
Inventor
Shuichi Fujita
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.)
Sharp Corp
Original Assignee
Sharp 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 Sharp Corp filed Critical Sharp Corp
Priority to JP22106389A priority Critical patent/JPH0816860B2/en
Publication of JPH0383113A publication Critical patent/JPH0383113A/en
Publication of JPH0816860B2 publication Critical patent/JPH0816860B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Abstract

PURPOSE: To prevent erroneous detection by generating a read timing signal only in the period when an output coordinate detection signal is stable and excluding an influence of chattering to read the output coordinate detection signal regardless of this influence included in the output coordinate detection signal.
CONSTITUTION: The read timing signal for an output x-direction coordinate detection signal Ox' and an output y-direction coordinate detection signal Oy' is generated by a fourth integrating circuit 14 and a second comparing circuit 15. The integral rise time constant of the fourth integrating circuit 14 is set to a value longer than those of second and third integrating circuits 12 and 13, and the reference level of the second comparing circuit 15 is so determined that the integral output of the fourth integrating circuit 14 is allowed to pass as the read timing signal after the completion of rise of the output x-direction coordinate detection signal Ox' and the output y-direction coordinate detection signal Oy'. Thus, an influence of chattering is not included in output coordinate detection signals read in based on the read timing signal though chattering has an influence upon output coordinate detection signals Ox' and Oy'.
COPYRIGHT: (C)1991,JPO&Japio
JP22106389A 1989-08-28 1989-08-28 Coordinate detection device Expired - Fee Related JPH0816860B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP22106389A JPH0816860B2 (en) 1989-08-28 1989-08-28 Coordinate detection device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP22106389A JPH0816860B2 (en) 1989-08-28 1989-08-28 Coordinate detection device

Publications (2)

Publication Number Publication Date
JPH0383113A true JPH0383113A (en) 1991-04-09
JPH0816860B2 JPH0816860B2 (en) 1996-02-21

Family

ID=16760910

Family Applications (1)

Application Number Title Priority Date Filing Date
JP22106389A Expired - Fee Related JPH0816860B2 (en) 1989-08-28 1989-08-28 Coordinate detection device

Country Status (1)

Country Link
JP (1) JPH0816860B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1630652A1 (en) * 2004-03-22 2006-03-01 High Tech Computer Corp. Coordinate positioning device with anti-noise method

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1630652A1 (en) * 2004-03-22 2006-03-01 High Tech Computer Corp. Coordinate positioning device with anti-noise method

Also Published As

Publication number Publication date
JPH0816860B2 (en) 1996-02-21

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