Abstract: A form reader especially for lottery forms with handwritten marks or bar codes includes a drum transport engaging the form, and a stepping motor advances the form circularly along a path around the drum, passing through a linear reading station elongated perpendicularly to the path. A light source illuminates the form at the read station and reflected light is incident on an elongated array of charge coupled device (CCD) light sensors via a focusing lens arrangement. An analog comparator coupled to a serial output of the CCD sensors digitizes encode and encodes each pixel in the elongated array repetitively during transport, sampling the reflectance of the form and defining an X-Y array of pixels. A digital processor coupled to an image memory analyzes the data for predetermined patterns such as handwritten marks, printed reference marks and/or printed bar code or OCR characters on the form.
June 22, 1992
Date of Patent:
September 21, 1993
Thomas Cannon, Daniel Smith, Mark Bowen
Abstract: A scratch-off coating composition and method for application of the coating to lottery forms and the like employs a water based dispersion of acrylic resin, at approximately equal proportions of resin and water, by weight. The dispersion is adjusted to a pH greater than 7.0, and preferably a surfactant is added as a wetting, defoaming and/or dispersing agent. A pigment of metallic particles such as aluminum paste is added, together with a powdered filler such as calcium carbonate, at about 5 to 25% by weight of the coating composition. The composition can be applied in successive layers, including outer layers of relatively higher proportions of resin for improving wet rub resistance. For the outer surface layers, a number of ink formulations are disclosed.
Abstract: A mark sense detector with a threshold detector having a weighted and variable threshold discriminates reflective variations on an illuminated surface such as a hand-marked lottery entry card having a plurality of tracks with potential reflective variations occurring at discrete positions thereon. The card is fed relative to an array of photodetectors for the tracks, each photodetector producing an input signal for a respective one of the tracks in response to reflections of the illuminated surface, the input signal varying with marks and with parameters of the illumination and feeding. The track input signals are applied to follower amplifiers for each of the tracks. An integrator for each of the tracks averages the output of the follower amplifier, the average being divided and applied as the threshold input to a comparator for each of the tracks.
Abstract: An on-line wagering system with programmable game entry cards including cards having on-card data storage for value tokens and data uniquely related to the player and including cards with on-card data storage for operator security data. The player cards are operable as payment means in which the tokens are spent and as play validation and play entry means in lieu of mark sense slips and printed validation receipts. Demographic player data uniquely related to the owner of the card is stored on the card and possibly in the central wagering system memory. This allows correlation of play entries with player demographics. The operator cards are operable to associate every transaction with an individual operator for the purpose of enhancing transaction security. A plurality of agent terminals in data communication with the central data processor interface between the central processor and the player cards.
Abstract: An on-line wagering system with programmable game entry cards including cards having on-card data storage for value tokens and data uniquely related to the player. The player cards are operable as payment means in which the tokens are spent and as play validation and play entry means in lieu of mark sense slips and printed validation receipts. Demographic player data uniquely related to the owner of the card is stored on the card and possibly in the central wagering system memory. This allows correlation of play entries with player demographics. A plurality of agent terminals in data communication with the central data processor interface between the central processor and the player cards. The agent terminals preferably also accept traditional mark sense entry slips and produce printed verification receipts, upon request.
Abstract: The disclosed apparatus has a data reading head and an elastomer ring on a driven rotor within stationary arcuate outer guide means for driving a sheet along a path starting and ending at a common location and passing the reading head. The elastomer ring and the outer guide are shaped so that their cooperation biases sheets against and into edgewise alignment with side guide means along portions of the path approaching the reading head and departing from the reading head. The sheet feeding path is arched away from the elastomer ring in the region of the elastomer ring, and the guide means has a light-absorbing channel that is uninterrupted by the elastomer ring disposed opposite the data reading head. The entire apparatus is readily opened up for service virtually without resort to tools and restored to operative condition without need for adjustments.
Abstract: A reader for cards having handwritten marks positioned to encode data, is provided with an image recorder for capturing an instantaneous image of the possible mark-bearing area of the card, including the handwritten marks and identification marks printed on the card. A data processor digitizes the data to a matrix of pixels representing grey levels at spaced points in the image. Digital means are provided to locate the identifcation marks and define the expected mark areas of the image field while accounting for positioning error such as skew, and to map the image field into potential mark-bearing areas. A comparator then compares the grey levels at successive pixels or groups of pixels in the mark areas with immediate adjacent pixels or groups, thereby detecting marks by finding contrasting edges. The identification marks printed on the card can be variable in type or position to provide for separate game cards. The reader is adaptable to be reprogrammed for additional games and functions.
April 29, 1986
Date of Patent:
February 9, 1988
Clifton C. Dutton, William R. Patterson
Abstract: The disclosed data reading apparatus carries an inserted sheet continuously inward and around a drum where data on the sheet is sensed optically and out of the apparatus reversely, close to the point of insertion. Sheets of different widths are aligned initially, and are held against the drum by tensioned belts. The drum "floats", being movable toward and away from the data reader to accommodate abnormal sheet thickness, wrinkling, etc. and to limit the sensing gap. Jamming of an inserted sheet is virtually eliminated by the floating drum and other special provisions. The entire apparatus is very compact, due in part to making the drum hollow and mounting the drive motor in the hollow.