Remote control systems that can distinguish stray light sources
First Claim
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1. A method comprising:
- detecting detectable light with a remote control, wherein the detectable light comprises;
at least a portion of predetermined light, wherein the predetermined light is generated by a plurality of predetermined light sources, wherein the light sources of the plurality of predetermined light sources are disposed in a target pattern, and wherein at least a first predetermined light source of the plurality of predetermined light sources emits a first portion of the predetermined light in accordance with a first signature modulation characteristic; and
at least a portion of stray light, wherein the stray light is provided by at least one unknown light source; and
processing the detected detectable light using the first signature modulation characteristic and the target pattern to distinguish the at least a portion of the predetermined light from the at least a portion of the stray light.
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Abstract
Remote control systems that can distinguish predetermined light sources from stray light sources, e.g., environmental light sources and/or reflections are provided. The predetermined light sources can be disposed in asymmetric substantially linear or two-dimensional patterns. The predetermined light sources also can output waveforms modulated in accordance with one or more signature modulation characteristics. The predetermined light sources also can output light at different signature wavelengths.
50 Citations
27 Claims
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1. A method comprising:
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detecting detectable light with a remote control, wherein the detectable light comprises; at least a portion of predetermined light, wherein the predetermined light is generated by a plurality of predetermined light sources, wherein the light sources of the plurality of predetermined light sources are disposed in a target pattern, and wherein at least a first predetermined light source of the plurality of predetermined light sources emits a first portion of the predetermined light in accordance with a first signature modulation characteristic; and at least a portion of stray light, wherein the stray light is provided by at least one unknown light source; and processing the detected detectable light using the first signature modulation characteristic and the target pattern to distinguish the at least a portion of the predetermined light from the at least a portion of the stray light. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A system comprising:
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a module that detects detectable light, wherein the detectable light comprises; at least a portion of predetermined light, wherein the predetermined light is generated by a plurality of predetermined light sources; and at least a portion of stray light, wherein the stray light is provided by at least one unknown light source; and a controller that processes the detected detectable light, using at least one characteristic of the plurality of predetermined light sources that is known to the controller, to distinguish the at least a portion of the predetermined light from the at least a portion of the stray light. - View Dependent Claims (15, 16, 17, 18, 19, 20, 21, 22, 23, 24)
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25. A method comprising:
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detecting detectable light with a remote control, wherein the detectable light comprises; at least a portion of predetermined light, wherein the predetermined light is generated by a plurality of predetermined light sources; and at least a portion of stray light, wherein the stray light is provided by at least one unknown light source; and processing the detected detectable light, using at least one characteristic of the plurality of predetermined light sources that is determined prior to the detecting, to distinguish the at least a portion of the predetermined light from the at least a portion of the stray light. - View Dependent Claims (26, 27)
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Specification