Abstract: A supply chain management system is provided that includes a label having a first side with an adhesive and a second side with a plurality of information units printed thereon. The plurality of information units are printed in visible ink or invisible ink and the invisible ink is activated by environmental conditions such as temperature or light spectrum. The label is affixed to an object being processed and the visible appearance of one or more information elements originally printed in invisible ink is used for further processing or the object.

Abstract: A game piece with a hidden image that is visible through a decoder filter, with a first visible layer having an image gradient mapped to a first electromagnetic wavelength range and a second visible layer with a disguising mask and the image gradient mapped to a second electromagnetic wavelength range, the electromagnetic wavelength ranges selected based on a color hue for the decoder filter and the disguising mask having an electromagnetic wavelength within the second electromagnetic wavelength range. A method of making a game piece with a hidden image that is visible upon viewing through a decoder filter is disclosed.

Abstract: The present invention relates to educational and entertaining playing cards. The cards may be used alone or in combination with other hardware game accessories, such as board games, or software game accessories, such as compact discs and the Internet. Unlike other popular and heavily traded playing cards (e.g. Pokemon) which have limited social and educational value, an educational element has been added to the cards of the present invention without destroying the fun associated with the collecting, trading, and playing of the cards. Educational facts and information about a variety of topics are located on the playing cards, which may be used to play various games. Two different types of game cards are contemplated by the present invention: (1) standard cards and (2) fact cards. The present invention, however, is in no way limited to only these two types of game cards.

Abstract: A learning device comprises a receptacle for holding an information bearing card. The information bearing cards include a problem and a coded answer. The receptacle of the learning device includes a decoding display window with a movable writing screen which may be moved to cover or uncover the decoding display window. The user can insert the information bearing cards into the receptacle, write down a response on the writing screen with the display window covered, and compare their response with the correct answer by moving the movable writing screen to reveal the decoded answer through the decoding display window.

Abstract: A card holder having a pair of plates movably coupled together by a series a straps for displaying and playing with cards. The plates include openings into which the cards are received. The straps overlie one face of each of the plates so as to cover selected portions of the cards. The set of straps on one plate are vertically staggered with respect to the set of straps on the other plate. The straps and plates are uniquely interconnected to effect a reversal of the straps upon manipulation of the plates.

Abstract: A story book assembly and a method of teaching wherein a child first studies a first element of information, then locates an empty space adjacent to first element. The empty space is intended to receive a second related element of information. After comparing what is available, the child selects an appropriate second element from a remote source. The second element is initially located on an exposed surface of a movable card. The movable card includes a hidden surface, on which a third element of information is disposed. The hidden surface is selectively exposed by the child so that the third element may be viewed. The selected movable card is then placed within the empty space so that the second element may be viewed together with the first element. The third element relates to the second element and the second element relates to the first element.

Abstract: Game apparatus in which a pawl and ratchet mechanism indexes a game card to bring successive game indicia to a viewing opening, said indicia comprising intelligible indicia interspersed with unintelligible indicia, said intelligible indicia being intelligible only when viewed through a colored filter in said opening, the game being played by teams of two players, one of whom views said indicia and gives the other player clues for identifying the information in the indicia.

Abstract: A method of coding gifts including a set of stickers all with one symbol which are attached to gifts with a card given to the child identifying the symbol and indicating that all gifts with that symbol belong to that child. Clue cards are used to allow the child to locate the identifying card and colored filter decoders are used to uncover the symbol on camouflaged stickers.

Abstract: Memory-oriented or pattern matching games use game pieces having indicia which become excited responsive to a brief exposure to strong light or another activating event for emitting colored light during a short period of time. The games use the excitable indicating medium to present certain information to the players for a short time period. Thereafter, the players are required to use their memory of the temporarily-presented information in order to accomplish some task. In some embodiments, the games present a random arrangement of color-coding which soon becomes invisible after the excitement subsides. Then, the players must use their memory of the game piece locations to select only those pieces which are assigned to them. In another embodiment of the invention, a maze is printed in excitable ink which is visible only during the short time period of excitement. The players must try to complete the maze before the pattern, or their memory of it, dissipates.

Abstract: A system for assisting the learning of a subject and, more specifically, for the aiding of the teaching of a language. The system comprises a substrate upon which is arranged a first, basic text that contains supplementable information which is unaidedly visible to the eye of a human user. A second, explanatory text, interlinearly arrayed with respect to the first text, provides additional information related to the supplementable information contained in the first text. The second text is arranged so that the additional information is generally proximate to the supplementable information to which it relates. The second text is displayed using a medium which is generally invisible to the eye of a human user unless exposed to light of a specified frequency range, such as ultraviolet (UV) light.

Abstract: A teaching system utilizing prerecorded tape which is prepared in sectors with a message segment and position indicators in the form of transparent windows which are photoelectrically detected. After a message or question is played, a first window is detected by a first detector and the tape drive motor is deenergized with another window positioned before one of a plurality of other detectors. The operator then attempts to answer or identify the message by making a selection corresponding to one of the plurality of detectors, and if a correct answer is given, a signal is given to the operator. All of the photoelectric detecting devices are on a carrier which is removably mounted to a cassette.

Abstract: A teaching system utilizing magnetic tape which is prepared in sectors with a message segment and position indicators in the form of transparent windows which are photoelectrically detected. After a message or question is played, a first window is detected by a first detector and the tape drive motor is de-engergized with another window positioned before one of a plurality of other detectors. The operator then attempts to answer or identify the message by making a selection corresponding to one of the plurality of detectors, and if a correct answer is given, a signal is given to the operator.

Abstract: Teaching or amusement apparatus consists of a substrate bearing printed intelligence and a detector pen or unit for use therewith. The detector pen discriminates between areas on the printed substrate by means not visible to the naked eye e.g. by a difference in magnetic properties, infrared reflective properties or capacitative properties of different parts of the printing. Depending on the type of printing and the degree of complexity of detection, a wide variety of games and teaching aids may be produced using this basic approach. A typical example is a quiz game where a question may be followed by five printed answers, only one of which is correct, that correct one being printed in a detectably different way from the others.

Abstract: Pairs of images are presented to an observer under conditions such that they are perceived as a single image and provide information about their mutual relationship. The pair are derived from non-equivalent image means, e.g. from (a) a photograph of a scene subject to change and (b) direct viewing of the changed scene. They are generally presented simultaneously to respective eyes. Intermittent alternate occlusion of the images highlights differences. The image pairs may constitute movie or television displays to provide 3-dimensional effects.

Abstract: A composite indicator for use with overlay process color screen tints in offset color printing comprised of a composite screen made of relatively angled color screens. The respective dot patterns of the color screens have the word of the process color associated with that angle worked in by an out-of-phase dot pattern with respect to that screen background dot pattern. An overlaying color screen, when properly angled, causes, by out-of-phase moire pattern effect, the name of that color to be visually readable as a relatively lighter or darker pattern on a contrasting background.

Abstract: Pairs of images are presented to an observer under conditions such that they are perceived as a single image and provide information about their mutual relationship. The pair are derived from non-equivalent image means, e.g. from (a) a photograph of a scene subject to change and (b) direct viewing of the changed scene. They are generally presented simultaneously to respective eyes. Intermittent alternate occlusion of the images highlights differences. The image pairs may constitute movie or television displays to provide 3-dimensional effects.