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System and method for fault detection and recovery for an optical input area

A technology for optical input and detection of optical paths, applied in the input/output process of data processing, instruments, calculations, etc., and can solve problems such as incorrect computer input

Inactive Publication Date: 2007-02-07
AVAGO TECH ECBU IP (SINGAPORE) PTE LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Such non-functioning emitters and detectors can cause erroneous computer input

Method used

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  • System and method for fault detection and recovery for an optical input area
  • System and method for fault detection and recovery for an optical input area
  • System and method for fault detection and recovery for an optical input area

Examples

Experimental program
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Embodiment Construction

[0018] refer to Figure 1-6 , in an embodiment, a system 5 for providing input to a computer is shown. System 5 may include a light input region 10 having a first set of detection light paths 15 and a first set of detection light paths 20 . Light emitters 25A- 25H and light detectors 30A- 30H may form a first set of detection light paths 15 and light emitters 25I- 25S and light detectors 30I- 30S may form a second set of light paths 20 .

[0019] In one embodiment, the optical input area 10 may include an optical touch screen. In another embodiment, the light input area 10 may include an input pad, which may include indicia or may be a blank background. In another embodiment, light input region 10 may include openings formed between light emitters 25A- 25H and light detectors 30A- 30H without screens or pads.

[0020] The first group of detection optical paths 15 and the second group of detection optical paths 20 are positioned at an angle α to each other ( figure 1 with ...

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PUM

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Abstract

A system is disclosed for providing input to a computer, the system comprising an optical input area; a controller device; a diagnostic mode for assigning a status of faulty pathway to interrupted pathways; and a normal function mode for excluding interrupted pathways and determining a pair of minimum and maximum coordinates formed at intersections of a first pair and a second pair of outermost interrupted pathways. A method for providing input to a computer is disclosed, the method comprising providing an optical input area and a controller; selecting the diagnostic mode; assigning a status of faulty pathway to interrupted pathways; selecting the normal function mode; excluding interrupted pathways; determining a pair of minimum and maximum coordinates formed at intersections of a first pair of outermost interrupted pathways and a second pair of outermost interrupted pathways; and reporting the pair of minimum and maximum coordinates to the computer.

Description

technical field [0001] The present invention relates to systems and methods for fault detection and recovery of optical input regions. Background technique [0002] A computer can receive input in a variety of ways including through a keyboard or computer input fields. Computer input areas typically include one or both forms of a mouse pad including discrete sensors (e.g., a mouse pad including a capacitive sensor array), or a mouse pad or other surrounding sensor including multiple sets of intersecting detection paths (e.g., including a first The mouse pads of the detection optical paths of the first and second groups are crossed groups). [0003] Infrared light touch panels typically provide up to 100% transparency and typically require no contact force, a desired property for many LCD applications. Optical touch panels typically operate by using many pairs of emitters and detectors. [0004] Emitter and detector pairs become inoperable for various reasons. An example ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F3/042G06F3/041
CPCG06F3/0421G06F3/0418G06F3/04186
Inventor 翁启恒张国强李凯空
Owner AVAGO TECH ECBU IP (SINGAPORE) PTE LTD