US 4,586,711 AGranted

Matching card game employing randomly-coded monochromatic images

AssigneeGlenn E. Weeks

InventorsSimon N. Winters, Yiu T. Chu

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Abstract

A matching card game for supermarket contests and other encoding applications utilizes a positive sheet (10), preferably printed in a newspaper, and valid (16) and dummy (12) negative sheets, preferably made available in random order in the store, e.g., affixed to pads, on the wrappings of products, insertions into products, or printed on displays. The valid negative sheet, when placed over the positive sheet in correct registration, produces a recognizable, winning image (18), while similar superimposition of the dummy negative sheet will not produce any recognizable image (14). The sheets are formed by scanning (22) the image (20) to be encoded in a series of parallel adjacent rows. The positive and dummy sheets are printed as a series of rows of monochromatic, random, uniformly-shaped and sized geometric rectangles or other shapes. The negative sheet is similarly printed, except that in the pattern areas, the random rectangles are the inverse of those on the positive sheet in these areas. The non-pattern areas of all sheets preferably are printed by generating three sets of first random binary bits for these areas (34), generating random remainders of a pseudo-random number modulo a small positive integer, e.g., quaternary bits (36) for these areas, generating three sets of second random binary bits (38, 40, 42), one for each occurrence of a given one of the quaternary bits, modifying the three sets of first random binary bits according to the three sets of second random binary bits (44, 46, 48), respectively, and then printing (54, 60, 64) the pattern areas of the three sheets in accordance with the three modified bit signals.

Claims16

Dependent claims

A matching card game for restoring an original symbol, said game comprising positive, dummy-negative, and valid-negative gamepieces, said game being arranged so that registration of said dummy-negative gamepiece over said positive gamepiece will not produce any intelligible information, but so that registration of said valid-negative gamepiece over said positive gamepiece will produce a viewable image of said original symbol, said card game comprising:

(a) a positive gamepiece comprising a first sheet of material having a pattern of monochromatic uniform geometric figures arranged thereon in a random manner in an area corresponding to the area of said original symbol so as to represent a part of said original symbol in said area, said geometric figures also being arranged in a random manner in the areas of said first sheet other than that of said original symbol, such that said first sheet of material will not, in itself, provide any intelligible information upon direct viewing thereof,
(b) a negative gamepiece comprising a second sheet of material having a pattern of monochromatic uniform geometric figures, arranged in a random manner in an area corresponding to the area of said original symbol so as to represent another part of said original symbol in said area, said geometric figures also being arranged in a random manner in the areas of said second sheet other than that of said original symbol, such that said second sheet of material will not, in itself, provide any intelligible information upon direct viewing thereof,
(c) said monochromatic uniform geometric figures of said positive and said negative gamepieces being distributed in the areas thereof corresponding to the area of said original symbol such that when said negative gamepiece is superimposed in a predetermined manner of registration over said positive gamepiece, the monochromatic uniform geometric figures of both will combine and compliment each other in the area occupied by said original symbol so as to reconstitute said symbol in said area, and so that the other areas of said sheets will have a reduced coverage from said monochromatic geometric symbols so as to enable said reconstituted symbol to be humanly recognized, and
(d) a dummy gamepiece comprising a third sheet of material having a pattern of monochromatic uniform geometric figures arranged in a random manner in an area corresponding to the area of said original symbol and the other surrounding areas of said third sheet, such that said third sheet of material does not contain any intelligible information upon direct viewing thereof and so that, if superimposed upon said first sheet, said original symbol will not be reconstituted or provided, regardless of the manner of registration of said dummy gamepiece with said first sheet.

1 more element

A method of fabricating playing sheets for a chance game comprising the following steps:

(a) providing a humanly-recognizable two-dimensional pattern,
(b) scanning said pattern in adjacent parallel rows to compile the locations of the border areas of said pattern in each scanned row,
(c) generating for each row a first series of random binary elements,
(d) generating for each row a second series of binary elements,
(e) said first and second series of binary elements being generated such that the portion of said second series of binary elements corresponding to said pattern is the inverse of that of said first series of binary elements for said pattern, the pattern of binary elements of said second series for the portion of each row not within said pattern being random,
(f) printing a positive coded sheet in response to said first series of random binary elements, said positive coded sheet consisting of rows of elements corresponding to said rows in which said pattern was scanned, the elements of said rows being uniformly-shaped monochromatic geometric figures corresponding to said first series of random binary elements in each row,
(g) printing a negative coded sheet in accordance with said second series of random binary elements, said negative coded sheet consisting of rows of elements corresponding to said rows in which said pattern was scanned, the elements of said rows being monochromatic, uniformly-shaped geometric figures corresponding to said second series of binary elements in each row, and
(h) printing at least one dummy coded sheet consisting of rows of elements corresponding to said rows in which said pattern was scanned, the elements of said rows being monochromatic, uniformly-shaped geometric figures having a random distribution.

5 more elements

A chance game in which a winner is able to match a chosen or assigned playing piece with a universally-distributed playing piece to assemble a predetermined complete and intelligible pattern, said playing pieces comprising:

(a) first and second sheets of material,
(b) at least a portion of each of said sheets constituting a code portion and having a plurality of uniform geometric figures thereover, each of said figures having the same geometric shape and size, said figures being contiguous so as to occupy the entire surface of said code portion of each sheet,
(c) some of said uniform figures on said first sheet being monochromatic contrast areas which are
(1) substantially opaque to light, and
(2) arranged in positions so that in themselves they do not provide a complete or intelligible symbol,
(d) some of said monochromatic contrast areas on said first sheet occupying contiguous uniform areas so that each resultant set of contiguous monochromatic contrast areas will form a unitary monochromatic contrast area larger than a single uniform area,
(e) some of said uniform figures on said second sheet being monochromatic contrast areas which
(1) have a substantially different light reflectivity than the others and remainder of the uniform areas on said second sheet, and
(2) are arranged in positions so that in themselves they do not provide a complete or intelligible symbol,
(f) some of said monochromatic contrast areas on said second sheet occupying contiguous uniform areas so that each resultant set of contiguous monochromatic contrast areas will form a unitary monochromatic contrast area larger than a single uniform area,
(g) some of said others of said uniform figures on said second sheet also occupying contiguous uniform areas so that each resultant set of contiguous other figures on said second sheet will form a unitary other area larger than a single uniform area,
(h) the remainder of said uniform figures of said first sheet, other than said monochromatic contrast figures thereon, being substantially transmissive of light, such that at least some of said monochromatic contrast areas on said second sheet can be viewed through said light-transmissive areas of said first sheet when said first sheet is superimposed over said second sheet in a predetermined manner of registration,
(i) some of said others of the uniform figures on said second sheet also occupying contiguous ones of said uniform areas so that each resultant set of contiguous other areas on said first sheet will form a unitary other area larger than a uniform area,
(j) said monochromatic contrast areas on said first and second sheets each also containing encoded information of said of pattern such that when said first sheet is superimposed over said second sheet in said predetermined manner of registration, said monochromatic contrast areas of both sheets will combine and compliment each other when viewed in a direction perpendicular to said sheets so as to present said pattern in complete and intelligible form assembled of complimentary parts of said monochromatic contrast areas of said first and second sheets,
(k) said monochromatic contrast and the others of said uniform figures on said first sheet being distributed in a random fashion,
(l) said monochromatic contrast and the others of said areas on said second sheet also being distributed in a random fashion and having a complimentary arrangement to that of the monochromatic contrast areas of said first sheet in the portions of said sheets which present said pattern, and
(m) said monochromatic contrast areas of said first sheet having a non-complimentary arrangement to that of the monochromatic contrast areas of said second sheet in the portions of said sheets other than those portions which present said pattern,
(n) all monochromatic contrast and other areas on both sheets thereby having the same uniform shape and size, occupying the entire code portion of each said sheets, and providing large contrast and large other areas where contiguous contrast areas and contiguous other areas exist,
whereby when said first and second sheets are superimposed in said predetermined pattern of registration, the coded image can be assembled more rapidly, with less tolerance, and with less possibility for error.

16 more elements

Dependencies are inferred from the claim text.