Playing card imaging technology with through-the-card viewing technology
OwnerMladen Blazevicinventor
Life of this patent
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Abstract
A method of reading suit and rank of playing cards is enabled on a system for controlled provision of image content of faces of a playing card that has: e) a support surface for playing cards; f) a source of infrared radiation; g) an infrared sensitive camera; and h) a processor. The infrared sensitive camera positioned to capture infrared radiation transmitted through the playing cards and transmit information based on the captured radiation to the processor; and the processor configured to provide suit and rank information of a playing card through which the infrared radiation was transmitted.
Claims40
A method of reading information from a playing card while an image face of the playing card is hidden by a visible-light-opaque back comprising:
- an infrared-sensitive camera positioned over the playing card back receives infrared information passing through the playing card;
- a filter on the camera filtering out at least some visible and some infrared radiation, allowing a defined range or wavelength of infrared radiation into the camera;
- the camera capturing infrared radiation within the defined range of radiation and transmitting signals based on the captured radiation;
- a processor receiving the transmitted signals and executing code to define patterns in the captured radiation;
- and
- the defined patterns including image content of suit and/or rank on the image face of the playing card.
A system for controlled provision of image content of faces of a playing card comprising:
- a) a support surface for playing cards;
- b) a source of infrared radiation;
- c) an infrared sensitive camera;
- and
- d) a processor;
- the infrared sensitive camera positioned to capture infrared radiation transmitted through the playing cards and transmit information based on the captured radiation to the processor;
- and
- the processor configured to provide suit and/or rank information of a playing card through which the infrared radiation was transmitted.
The system of claim 36 wherein, with a set of multiple playing cards supported on the playing card support surface, a ratio of intensity of A) infrared passing directly from the infrared radiation source, through at least one playing card in the set of playing cards, through the prism and to the B) infrared sensitive camera to intensity of infrared radiation reflected back into the prism, and then from the prism through the support surface for the playing cards, and then reflected from the at least one playing card in the set of playing cards back into the prism and to the infrared sensitive camera is at a ratio of A)/B) of at least 80/20.
Dependencies are inferred from the claim text.