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JPS54152818A - Position detecting pen - Google Patents

Position detecting pen

Info

Publication number
JPS54152818A
JPS54152818A JP6063478A JP6063478A JPS54152818A JP S54152818 A JPS54152818 A JP S54152818A JP 6063478 A JP6063478 A JP 6063478A JP 6063478 A JP6063478 A JP 6063478A JP S54152818 A JPS54152818 A JP S54152818A
Authority
JP
Japan
Prior art keywords
pen
position detecting
input terminal
voltage detector
circuit
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
JP6063478A
Other languages
Japanese (ja)
Other versions
JPS5626864B2 (en
Inventor
Ikuo Namiki
Yoshio Shiratori
Akira Ishii
Hiroki Arakawa
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.)
Nippon Telegraph and Telephone Corp
Original Assignee
Nippon Telegraph and Telephone 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 Nippon Telegraph and Telephone Corp filed Critical Nippon Telegraph and Telephone Corp
Priority to JP6063478A priority Critical patent/JPS54152818A/en
Publication of JPS54152818A publication Critical patent/JPS54152818A/en
Publication of JPS5626864B2 publication Critical patent/JPS5626864B2/ja
Granted legal-status Critical Current

Links

Abstract

PURPOSE: To prevent the S/N lowering caused by the external noise in case the length of wiring is increased between the piezoelectric element and the voltage detector circuit by applying the current detection system for the voltage detector circuit of the position detecting pen, and thus to increase the S/N for the output signals.
CONSTITUTION: The vibrations of pen point 1 are converted into the electric signals via piezoelectric element 2 and then delivered through the position detecting pen. For such pen, the output of element 2 is supplied to one input terminal of operational amplifier 6 provided at voltage detector circuit 8 with the other input terminal earthed. At the same time, resistance 9 and capacitor 10 are connected in parallel between output terminal 7 and the input terminal of amplifier 6, and the signals of element 2 are detected by the current and through circuit 8. Thus, the induction of the external noise is prevented in case the signal transmission line is increased between circuit 8 and element 2, accordingly increasing the S/N for the output signals.
COPYRIGHT: (C)1979,JPO&Japio
JP6063478A 1978-05-23 1978-05-23 Position detecting pen Granted JPS54152818A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6063478A JPS54152818A (en) 1978-05-23 1978-05-23 Position detecting pen

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6063478A JPS54152818A (en) 1978-05-23 1978-05-23 Position detecting pen

Publications (2)

Publication Number Publication Date
JPS54152818A true JPS54152818A (en) 1979-12-01
JPS5626864B2 JPS5626864B2 (en) 1981-06-22

Family

ID=13147932

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6063478A Granted JPS54152818A (en) 1978-05-23 1978-05-23 Position detecting pen

Country Status (1)

Country Link
JP (1) JPS54152818A (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS51129140A (en) * 1975-05-04 1976-11-10 Toyo Commun Equip Co Ltd Light pen
JPS51129138A (en) * 1975-05-04 1976-11-10 Toyo Commun Equip Co Ltd Light pen

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS51129140A (en) * 1975-05-04 1976-11-10 Toyo Commun Equip Co Ltd Light pen
JPS51129138A (en) * 1975-05-04 1976-11-10 Toyo Commun Equip Co Ltd Light pen

Also Published As

Publication number Publication date
JPS5626864B2 (en) 1981-06-22

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