Mouseless keyboard strategy pdf#

238000006243 chemical reaction Methods 0.000 description 6.

238000005516 engineering process Methods 0.000 description 8.

238000006073 displacement reaction Methods 0.000 description 16.

238000001514 detection method Methods 0.000 abstract description 2.

230000000875 corresponding Effects 0.000 abstract description 10.

238000003384 imaging method Methods 0.000 claims description 16.

230000003287 optical Effects 0.000 title abstract description 11.

Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.) Filing date Publication date Priority to US09/070,422 priority Critical patent/US6057540A/en Priority to US09/070422 priority Priority to US09/070,422 priority Application filed by Hewlett Packard Co filed Critical Hewlett Packard Co Publication of CN1233791A publication Critical patent/CN1233791A/en Application granted granted Critical Publication of CN1153121C publication Critical patent/CN1153121C/en Anticipated expiration legal-status Critical Status Expired - Lifetime legal-status Critical Current Links Original Assignee Hewlett Packard Co 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 or warranty as to the accuracy of the list.)

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Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.) Granted Application number CN99101716.1A Other languages Chinese ( zh)

Mouseless keyboard strategy pdf#

Google Patents Mouseless, optical and position translation type screen pointer control for computer systemĭownload PDF Info Publication number CN1233791A CN1233791A CN99101716.1A CN99101716A CN1233791A CN 1233791 A CN1233791 A CN 1233791A CN 99101716 A CN99101716 A CN 99101716A CN 1233791 A CN1233791 A CN 1233791A Authority CN China Prior art keywords image mouse finger light motion Prior art date Legal status (The legal status is an assumption and is not a legal conclusion.

Google Patents CN1233791A - Mouseless, optical and position translation type screen pointer control for computer system CN1233791A - Mouseless, optical and position translation type screen pointer control for computer system