Position detection apparatus and remote control apparatus
First Claim
1. A position detection apparatus comprising:
- light receiving means consisting of only one lens in operational association with at least two one-dimensional light receiving elements arranged in different directions from each other, wherein the one lens receives a light injected from a light source and converges the light to a spot in an area of the light receiving elements whereupon the light receiving means generates a position output if the spot is directly on any one of the light receiving elements and also if the spot is not directly on any one of the light receiving elements; and
position detection processing means for detecting a two-dimensional position of said light source according to the position output from said light receiving means.
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Accused Products
Abstract
An object of the present invention is to remote control a position of a cursor displayed on a display screen of a reception unit by means of two-dimensional/three-dimensional positioning of a transmission unit. Another object of the present invention is to select a function by operating an ON/OFF switch of the transmission unit.
A light emitted from a light source block of a transmission unit 10 is injected via a first optical block 13. A reception unit 20 receives the light from the transmission unit 10 via a second optical block 21 of a sensor block 22. A detection block 28 detects a light intensity according to an output from this sensor block. A control block 26 calculates a two-dimensional/three-dimensional position of the transmission unit 10 and displays the position as the cursor position on the display screen.
63 Citations
8 Claims
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1. A position detection apparatus comprising:
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light receiving means consisting of only one lens in operational association with at least two one-dimensional light receiving elements arranged in different directions from each other, wherein the one lens receives a light injected from a light source and converges the light to a spot in an area of the light receiving elements whereupon the light receiving means generates a position output if the spot is directly on any one of the light receiving elements and also if the spot is not directly on any one of the light receiving elements; and position detection processing means for detecting a two-dimensional position of said light source according to the position output from said light receiving means. - View Dependent Claims (2, 3, 4, 5)
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6. A remote control apparatus comprising:
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a transmission block having a light source for emitting a light and an ON/OFF switch for turning on and off said light source; a light receiving block having only one lens in operational association with at least two one-dimensional light receiving elements arranged in different directions from each other, wherein the one lens receives the light emitted from said transmission block and converges the light to a spot in an area of the light receiving elements whereupon the light receiving means generates a position output if the spot is directly on any one of the light receiving elements and also if the spot is not directly on any one of the light receiving elements; a position detection processing block for detecting a two-dimensional position of said transmission block according to the position output from said light receiving block; and a display block for displaying on a display screen the two-dimensional position of said transmission block detected by said position detection processing block. - View Dependent Claims (7, 8)
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Specification