Reduced noise touch screen apparatus and method
The present invention is directed to a touch screen user input device for a computer and, in particular, to a touch screen having reduced noise while providing high resolution. A touch screen having a high or fine resolution at relatively low cost is provided. In one embodiment, electrodes are place...
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| creator | Bertram, William K Pease, Logan L |
| description | The present invention is directed to a touch screen user input device for a computer and, in particular, to a touch screen having reduced noise while providing high resolution.
A touch screen having a high or fine resolution at relatively low cost is provided. In one embodiment, electrodes are placed directly on the surface of a CRT screen without the need for an electrode positioned on the rear surface. The touch screen may include a conductive coating and a protective coating which are preferably provided in a single vacuum chamber step. A high gain system including a high-frequency sampling bandpass filter provide discrimination of the desired signal over noise. A screen calibration technique is used to achieve linearization in order to convert the electric signals obtained from the screen into data indicative of the position of a touch on the screen. |
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A touch screen having a high or fine resolution at relatively low cost is provided. In one embodiment, electrodes are placed directly on the surface of a CRT screen without the need for an electrode positioned on the rear surface. The touch screen may include a conductive coating and a protective coating which are preferably provided in a single vacuum chamber step. A high gain system including a high-frequency sampling bandpass filter provide discrimination of the desired signal over noise. A screen calibration technique is used to achieve linearization in order to convert the electric signals obtained from the screen into data indicative of the position of a touch on the screen.</description><language>eng</language><creationdate>2002</creationdate><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/6476798$$EPDF$$P50$$Guspatents$$Hfree_for_read</linktopdf><link.rule.ids>230,308,776,798,881,64012</link.rule.ids><linktorsrc>$$Uhttps://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/6476798$$EView_record_in_USPTO$$FView_record_in_$$GUSPTO$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>Bertram, William K</creatorcontrib><creatorcontrib>Pease, Logan L</creatorcontrib><creatorcontrib>International Game Technology</creatorcontrib><title>Reduced noise touch screen apparatus and method</title><description>The present invention is directed to a touch screen user input device for a computer and, in particular, to a touch screen having reduced noise while providing high resolution.
A touch screen having a high or fine resolution at relatively low cost is provided. In one embodiment, electrodes are placed directly on the surface of a CRT screen without the need for an electrode positioned on the rear surface. The touch screen may include a conductive coating and a protective coating which are preferably provided in a single vacuum chamber step. A high gain system including a high-frequency sampling bandpass filter provide discrimination of the desired signal over noise. A screen calibration technique is used to achieve linearization in order to convert the electric signals obtained from the screen into data indicative of the position of a touch on the screen.</description><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>2002</creationdate><recordtype>patent</recordtype><sourceid>EFH</sourceid><recordid>eNrjZNAPSk0pTU5NUcjLzyxOVSjJL03OUChOLkpNzVNILChILEosKS1WSMxLUchNLcnIT-FhYE1LzClO5YXS3AwKbq4hzh66pcUFiSWpeSXF8elFiSDKwMzE3Mzc0sKYCCUA_7cr5A</recordid><startdate>20021105</startdate><enddate>20021105</enddate><creator>Bertram, William K</creator><creator>Pease, Logan L</creator><scope>EFH</scope></search><sort><creationdate>20021105</creationdate><title>Reduced noise touch screen apparatus and method</title><author>Bertram, William K ; Pease, Logan L</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-uspatents_grants_064767983</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng</language><creationdate>2002</creationdate><toplevel>online_resources</toplevel><creatorcontrib>Bertram, William K</creatorcontrib><creatorcontrib>Pease, Logan L</creatorcontrib><creatorcontrib>International Game Technology</creatorcontrib><collection>USPTO Issued Patents</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>Bertram, William K</au><au>Pease, Logan L</au><aucorp>International Game Technology</aucorp><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>Reduced noise touch screen apparatus and method</title><date>2002-11-05</date><risdate>2002</risdate><abstract>The present invention is directed to a touch screen user input device for a computer and, in particular, to a touch screen having reduced noise while providing high resolution.
A touch screen having a high or fine resolution at relatively low cost is provided. In one embodiment, electrodes are placed directly on the surface of a CRT screen without the need for an electrode positioned on the rear surface. The touch screen may include a conductive coating and a protective coating which are preferably provided in a single vacuum chamber step. A high gain system including a high-frequency sampling bandpass filter provide discrimination of the desired signal over noise. A screen calibration technique is used to achieve linearization in order to convert the electric signals obtained from the screen into data indicative of the position of a touch on the screen.</abstract><oa>free_for_read</oa></addata></record> |
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| title | Reduced noise touch screen apparatus and method |
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