Remote control for interactive television
First Claim
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1. An improved remote control for a television having a cursor displayed on the television screen, comprising:
- a remote control;
a conventional button fixed on said remote control, and the function of said conventional button being independent of where the cursor appears on the television screen;
a first light emitter for coding the action of said conventional button;
a light-scope having a lens for defining a narrow field of view and a photo detector for detecting the light signal passing through the lens, and said light-scope being fixed on said remote control and having the narrow field of view defined by the lens aligned in the same direction as pointed by said remote control;
a second light emitter driven by an electric signal that is converted from the light signal detected by the photo detector in said light-scope, for sending back to the television a communicating light signal representing the light signal emitted from the aiming point on the television screen pointed by said light-scope, whereby the television can display the cursor at that aiming point; and
a non-conventional button fixed on said remote control, and the function of said non-conventional button being depend on where said cursor appear on the television screen.
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Abstract
An improved remote control for interactive televisions is disclosed. The conventional remote control is improved by adding a light-scope as a remote-pointing device for defining an aiming point on the television screen. The light-scope consists of a photo detector and a lens system that defines a very narrow filed of view. An LED, driven by an electric signal converted from the light signal entering the light-scope, is used to create a communicating light signal. The communicating light signal, which is to some extent a replica of the light emitted from the aiming point, is sent back to the television for determine the aiming point.
35 Citations
13 Claims
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1. An improved remote control for a television having a cursor displayed on the television screen, comprising:
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a remote control;
a conventional button fixed on said remote control, and the function of said conventional button being independent of where the cursor appears on the television screen;
a first light emitter for coding the action of said conventional button;
a light-scope having a lens for defining a narrow field of view and a photo detector for detecting the light signal passing through the lens, and said light-scope being fixed on said remote control and having the narrow field of view defined by the lens aligned in the same direction as pointed by said remote control;
a second light emitter driven by an electric signal that is converted from the light signal detected by the photo detector in said light-scope, for sending back to the television a communicating light signal representing the light signal emitted from the aiming point on the television screen pointed by said light-scope, whereby the television can display the cursor at that aiming point; and
a non-conventional button fixed on said remote control, and the function of said non-conventional button being depend on where said cursor appear on the television screen. - View Dependent Claims (2, 3, 4)
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5. An improved remote control for a television having a cursor displayed on the television screen, comprising:
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a remote control;
a conventional button fixed on said remote control, and the function of said conventional button being independent of where the cursor appears on the television screen;
an electromagnetic emitter for coding the action of said conventional button;
a light-scope having a lens for defining a narrow field of view and a photo detector for detecting the light signal passing through the lens, and said light-scope being fixed on said remote control and having the narrow field of view defined by the lens aligned in the same direction as pointed by said remote control;
a light emitter driven by an electric signal that is converted from the light signal detected by the photo detector in said light-scope, for sending back to the television a communicating light signal representing the light signal emitted from the aiming point on the television screen pointed by said light-scope, whereby the television can display the cursor at that aiming point; and
a non-conventional button fixed on said remote control, and the function of said non-conventional button being depend on where said cursor appear on the television screen. - View Dependent Claims (6, 7, 8)
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9. An improved remote control for a television having a cursor displayed on the television screen, comprising:
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a remote control;
a conventional button fixed on said remote control, and the function of said conventional button being independent of where the cursor appears on the television screen;
a light-scope having a lens for defining a narrow field of view and a photo detector for detecting the light signal passing through the lens, and said light-scope being fixed on said remote control and having the narrow field of view defined by the lens aligned in the same direction as pointed by said remote control;
an electromagnetic emitter driven by an electric signal that is converted from the light signal detected by the photo detector in said light-scope, for sending back to the television a communicating electromagnetic signal representing the light signal emitted from the aiming point on the television screen pointed by said light-scope, whereby the television can display the cursor at that aiming point; and
a non-conventional button fixed on said remote control, and the function of said non-conventional button being depend on where said cursor appear on the television screen. - View Dependent Claims (10, 11, 12, 13)
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Specification
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Current AssigneeCDN Innovations, LLC (IP Investments Group LLC)
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Original AssigneeNongqiang Fan
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InventorsFan, Nongqiang
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Primary Examiner(s)CHANG, KENT WU
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Application NumberUS09/280,015Time in Patent Office1,451 DaysField of Search345/158, 345/157, 348/734, 250/200US Class Current345/158CPC Class CodesG08C 2201/32 Remote control based on mov...G08C 23/04 using light waves, e.g. inf...
