JPS5488734A - Data tablet - Google Patents

Data tablet

Info

Publication number
JPS5488734A
JPS5488734A JP15713277A JP15713277A JPS5488734A JP S5488734 A JPS5488734 A JP S5488734A JP 15713277 A JP15713277 A JP 15713277A JP 15713277 A JP15713277 A JP 15713277A JP S5488734 A JPS5488734 A JP S5488734A
Authority
JP
Japan
Prior art keywords
light
photoconductive
input plate
paths
constitution
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
JP15713277A
Other languages
Japanese (ja)
Inventor
Shigeru Oikawa
Yuzo Katayama
Norio Takato
Takashi Kurokawa
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 JP15713277A priority Critical patent/JPS5488734A/en
Priority to PCT/JP1978/000035 priority patent/WO1979000436A1/en
Priority to DE7878900316T priority patent/DE2862178D1/en
Priority to CA318,667A priority patent/CA1100211A/en
Publication of JPS5488734A publication Critical patent/JPS5488734A/en
Priority to EP19780900316 priority patent/EP0006960B1/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To increase the reliability, by avoiding the deterioration of performance due to long term usage, through the constitution of the input plate of the reader reading in two dimensional graph required for the electronic computer systems with the photoconductive path including scatter of light and through taking the input plate surface as non-color.
CONSTITUTION: In the reader reading-in two dimensional graphs required for the electronic computer systems etc, the input plate is constituted with the photoconductive paths 11, 12 including scattering substance arranged parallelly with the upper and lower surface orthogonal each other, and at the ends of the photoconductive paths 11, 12, the photo detectors 13 and 14 are located. Further, a part of the light 15 from the light pen 10 is scattered with the scattering substance in the photoconductive paths 11, 12, and the effective light 18 within a given angle with the photoconductive paths 11, 12 in the scattered light is propagated, allowing to detect the coordinates of the light pen 10 with the photo detectors 13, 14 placed at the ends.
COPYRIGHT: (C)1979,JPO&Japio
JP15713277A 1977-12-26 1977-12-26 Data tablet Pending JPS5488734A (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
JP15713277A JPS5488734A (en) 1977-12-26 1977-12-26 Data tablet
PCT/JP1978/000035 WO1979000436A1 (en) 1977-12-26 1978-12-01 Optical coordinate input device
DE7878900316T DE2862178D1 (en) 1977-12-26 1978-12-01 Coordinate input apparatus
CA318,667A CA1100211A (en) 1977-12-26 1978-12-27 Coordinate input apparatus
EP19780900316 EP0006960B1 (en) 1977-12-26 1979-07-16 Coordinate input apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15713277A JPS5488734A (en) 1977-12-26 1977-12-26 Data tablet

Publications (1)

Publication Number Publication Date
JPS5488734A true JPS5488734A (en) 1979-07-14

Family

ID=15642894

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15713277A Pending JPS5488734A (en) 1977-12-26 1977-12-26 Data tablet

Country Status (1)

Country Link
JP (1) JPS5488734A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62134716A (en) * 1985-12-06 1987-06-17 Oputo Electron:Kk Incident position detecting device for light spot or the like
JPH05334000A (en) * 1992-05-29 1993-12-17 Sharp Corp Input integrated type display device
JP2017508217A (en) * 2014-03-11 2017-03-23 クアルコム，インコーポレイテッド System and method for optical-based active stylus input recognition

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4922148A (en) * 1972-06-16 1974-02-27
JPS5029251A (en) * 1973-07-20 1975-03-25
JPS50137630A (en) * 1974-04-20 1975-10-31

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4922148A (en) * 1972-06-16 1974-02-27
JPS5029251A (en) * 1973-07-20 1975-03-25
JPS50137630A (en) * 1974-04-20 1975-10-31

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62134716A (en) * 1985-12-06 1987-06-17 Oputo Electron:Kk Incident position detecting device for light spot or the like
JPH0348530B2 (en) * 1985-12-06 1991-07-24 Oputo Erekutoronikusu Kk
JPH05334000A (en) * 1992-05-29 1993-12-17 Sharp Corp Input integrated type display device
JP2017508217A (en) * 2014-03-11 2017-03-23 クアルコム，インコーポレイテッド System and method for optical-based active stylus input recognition

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