Pointing device offering good operability at low cost

A device and a technology for comparing images, applied in the input/output process of data processing, instruments, electrical digital data processing, etc., can solve problems such as moving pointers, and achieve the effect of reducing the amount of calculation

Inactive Publication Date: 2006-04-05
SHARP KK +1
View PDF2 Cites 5 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0020] In the above method, since the motion is detected using the image obtained by the fingerprint sensor as it is, a long operation time calculation is required when calculating the image correlation value, making it impossible to move the pointer (cursor) on the display screen in real time according to the motion of the finger

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Pointing device offering good operability at low cost
  • Pointing device offering good operability at low cost
  • Pointing device offering good operability at low cost

Examples

Experimental program
Comparison scheme
Effect test

no. 1 approach

[0045] Reference figure 1 , The pointing device 100 includes a display part 110 and a fingerprint sensor 120.

[0046] The display part 110 can be any image display type, and can be LCD (liquid crystal display), CRT (cathode ray tube), FED (field emission display), PDP (plasma display panel), organic EL display (organic electroluminescence display) ), dot matrix displays, etc.

[0047] The fingerprint sensor 120 has a function of detecting a user's fingerprint.

[0048] figure 2 The specific structure of the fingerprint sensor 120 is shown. A capacitive sensor is taken as an example of the sensor of the present invention. However, in the present invention, the fingerprint sensor is not limited to the capacitive type, and may be an optical type, a pressure sensitive type, and the like.

[0049] Reference figure 2 The fingerprint sensor 120 includes an electrode group 210 and a protective film 200 disposed on the electrode group 210.

[0050] The electrode group 210 has electrod...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

A pointing device includes a sensor obtaining image information, and an image producing unit producing a comparison image at predetermined time intervals by lowering a spatial resolution of an image based on the image information obtained by the sensor and increasing a density resolution of the image based on the image information. The device arithmetically obtains a correlation value indicating a correlation between a predetermined region in a first comparison image among the plurality of comparison images produced by the image producing unit and a predetermined region in a second comparison image produced after the first comparison image.

Description

[0001] This non-provisional application is based on Japanese Patent Application No. 2004-281989 filed in the Japan Patent Office on September 28, 2004, the entire content of which is incorporated herein by reference. Technical field [0002] The present invention relates to a pointing device that provides instructions from a finger to a computer, and moves a pointer (cursor) on a display screen according to a direction corresponding to the movement of the finger, and specifically relates to a small click device capable of continuous input and user comparison. Background technique [0003] For small portable information terminals, especially for mobile phones, this type of pointing device based on fingerprints that moves a pointer (cursor) on the display screen according to the direction of movement of the finger has been developed. [0004] Japanese Patent Publication No. 2002-062983 discloses a technology related to the above-mentioned click device technology, which uses a specia...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
Patent Type & Authority Applications(China)
IPC IPC(8): G06F3/033G06F3/0354
CPCG06F2203/0338G06K9/00087G06F3/0317G06F3/03547G06K9/00026G06F3/044G06F3/0446G06V40/1335G06V40/1365
Inventor 汤元学中野贵彦浦田卓治宫田宗一上田淳小笠原司
Owner SHARP KK
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap