JPS562075A - Handwriting input unit - Google Patents

Handwriting input unit

Info

Publication number
JPS562075A
JPS562075A JP7721579A JP7721579A JPS562075A JP S562075 A JPS562075 A JP S562075A JP 7721579 A JP7721579 A JP 7721579A JP 7721579 A JP7721579 A JP 7721579A JP S562075 A JPS562075 A JP S562075A
Authority
JP
Japan
Prior art keywords
electrodes
sheet
integrated circuit
piezoelectric element
input unit
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
JP7721579A
Other languages
Japanese (ja)
Inventor
Masahiro Mikami
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.)
Seiko Epson Corp
Suwa Seikosha KK
Original Assignee
Seiko Epson Corp
Suwa Seikosha KK
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 Seiko Epson Corp, Suwa Seikosha KK filed Critical Seiko Epson Corp
Priority to JP7721579A priority Critical patent/JPS562075A/en
Publication of JPS562075A publication Critical patent/JPS562075A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To make an input unit lightweight and miniature and also to obtain high resolution, by combining a piezoelectric element with an integrated circuit.
CONSTITUTION: Piezoelectric element 13 and the integrated circuit consisting of input circuit 30 and memory cell 31 are provided. Piezoelectric element 13 has elec- trode 12 on the side of sheet 10 and many electrodes 14, arranged in a matrix, on the side of chip 16, electrodes 15 of which correspond to electrodes 14. Then, sheet 10 protects element 13 from a handwriting medium by a ball-point pen, etc., and through electrode 11, electrode 12 is applied with a constant voltage to substrate 16 of a chip including the integrated circuit. Namely, the elapse variation of pressure applied on the surface of sheet 10 by the handwriting medium is converted by element 13 into a voltage, which appears at electrodes 15 and is stored in memory cell 31 as a digital signal by way of input circuit 30, and information on it is led out via output circuit 32.
COPYRIGHT: (C)1981,JPO&Japio
JP7721579A 1979-06-19 1979-06-19 Handwriting input unit Pending JPS562075A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7721579A JPS562075A (en) 1979-06-19 1979-06-19 Handwriting input unit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7721579A JPS562075A (en) 1979-06-19 1979-06-19 Handwriting input unit

Publications (1)

Publication Number Publication Date
JPS562075A true JPS562075A (en) 1981-01-10

Family

ID=13627605

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7721579A Pending JPS562075A (en) 1979-06-19 1979-06-19 Handwriting input unit

Country Status (1)

Country Link
JP (1) JPS562075A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57178175A (en) * 1981-04-27 1982-11-02 Seiko Epson Corp Electronic clock provided with memory device
WO2015066599A3 (en) * 2013-06-03 2015-07-09 Qualcomm Incorporated Piezoelectric force sensing array
US9262003B2 (en) 2013-11-04 2016-02-16 Qualcomm Incorporated Piezoelectric force sensing array
US9323393B2 (en) 2013-06-03 2016-04-26 Qualcomm Incorporated Display with peripherally configured ultrasonic biometric sensor

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57178175A (en) * 1981-04-27 1982-11-02 Seiko Epson Corp Electronic clock provided with memory device
WO2015066599A3 (en) * 2013-06-03 2015-07-09 Qualcomm Incorporated Piezoelectric force sensing array
US9323393B2 (en) 2013-06-03 2016-04-26 Qualcomm Incorporated Display with peripherally configured ultrasonic biometric sensor
US9262003B2 (en) 2013-11-04 2016-02-16 Qualcomm Incorporated Piezoelectric force sensing array

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