Visible light communication signal display method and apparatus
First Claim
1. A visible light communication signal display method of displaying (i) an image represented by video signals and (ii) an image obtained by encoding visible light communication signals, the visible light communication signal display method comprising:
- encoding at least part of the visible light communication signals to generate an encoded image;
generating a plurality of sub-images which correspond to respective partial images obtained by spatially dividing the encoded image and each of which (i) includes a corresponding one of the partial images and (ii) except for the corresponding one of the partial images, is an image having a substantially uniform luminance value lower than or equal to a predetermined luminance value; and
displaying, in a video display period, the image represented by the video signals, and displaying the sub-images in time series in a communication period different from the video display period,wherein in the encoding, a pattern that corresponds to the at least part of the visible light communication signals is selected from a plurality of the patterns for displaying a timing of each the sub-images to encode the at least part of the visible light communication signals into the pattern.
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Abstract
A visible light communication signal display method of displaying (i) an image represented by video signals and (ii) an image obtained by encoding visible light communication signals includes: encoding at least part of the visible light communication signals to generate an encoded image; generating a plurality of sub-images which correspond to respective partial images obtained by dividing the encoded image and each of which (i) includes a corresponding one of the partial images and (ii) except for the corresponding partial image, is an image having a substantially uniform luminance value lower than or equal to a predetermined luminance value; and displaying, in a video display period, the image represented by the video signals, and displaying the sub-images in time series in a communication period different from the video display period.
130 Citations
23 Claims
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1. A visible light communication signal display method of displaying (i) an image represented by video signals and (ii) an image obtained by encoding visible light communication signals, the visible light communication signal display method comprising:
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encoding at least part of the visible light communication signals to generate an encoded image; generating a plurality of sub-images which correspond to respective partial images obtained by spatially dividing the encoded image and each of which (i) includes a corresponding one of the partial images and (ii) except for the corresponding one of the partial images, is an image having a substantially uniform luminance value lower than or equal to a predetermined luminance value; and displaying, in a video display period, the image represented by the video signals, and displaying the sub-images in time series in a communication period different from the video display period, wherein in the encoding, a pattern that corresponds to the at least part of the visible light communication signals is selected from a plurality of the patterns for displaying a timing of each the sub-images to encode the at least part of the visible light communication signals into the pattern. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A visible light communication signal display method of displaying (i) an image represented by video signals and (ii) an image for transmitting visible light communication signals, the visible light communication signal display method comprising:
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encoding at least part of the visible light communication signals into a pattern for dividing a basic image; dividing the basic image into a plurality of sub-images according to the pattern, the plurality of sub-images being displayed at different times, the pattern being presented by the plurality of sub-images; and displaying, in a video display period, the image represented by the video signals, and displaying, in time series in a communication period different from the video display period, a reversed image obtained by reversing luminance of the basic image, and the sub-images, wherein in the encoding, a pattern that corresponds to the at least part of the visible light communication signals is selected from a plurality of the patterns for dividing the basic image into a number of the sub-images to encode the at least part of the visible light communication signals into the pattern. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21)
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22. A display apparatus which displays (i) an image represented by video signals and (ii) an image obtained by encoding visible light communication signals, the display apparatus comprising:
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a processor; and a memory having therein a computer program, wherein when the processor executes the computer program, the computer program causes the processor to execute operations comprising; encoding at least part of the visible light communication signals to generate an encoded image; generating a plurality of sub-images which correspond to respective partial images obtained by spatially dividing the encoded image and each of which (i) includes a corresponding one of the partial images and (ii) except for the corresponding one of the partial images, is an image having a substantially uniform luminance value lower than or equal to a predetermined luminance value; and displaying, in a video display period, the image represented by the video signals, and display the sub-images in time series in a communication period different from the video display period, wherein in the encoding, a pattern that corresponds to the at least part of the visible light communication signals is selected from a plurality of the patterns for displaying a timing of each the sub-images to encode the at least part of the visible light communication signals into the pattern.
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23. A display apparatus which displays (i) an image represented by video signals and (ii) an image for transmitting visible light communication signals, the display apparatus comprising:
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a processor; and a memory having therein a computer program, wherein when the processor executes the computer program, the computer program causes the processor to execute operations comprising; encoding at least part of the visible light communication signals into a pattern for dividing a basic image; dividing the basic image into a plurality of sub-images according to the pattern, the plurality of sub-images being displayed at different times, the pattern being presented by the plurality of sub-images; and displaying, in a video display period, the image represented by the video signals, and display, in time series in a communication period different from the video display period, a reversed image obtained by reversing luminance of the basic image, and the sub-images, wherein in the encoding, a pattern that corresponds to the at least part of the visible light communication signals is selected from a plurality of the patterns for dividing the basic image into a number of the sub-images to encode the at least part of the visible light communication signals into the pattern.
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Specification