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Reward Candy Dispenser for Personal Computers
A personal computer peripheral, battery powered reward candy dispenser which immediately presents students with a single candy for each problem completed correctly.
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| Number | Title | Issue Date |
| 7366072 | Optical heads device and control method of optical head In an optical head for performing the reproduction or recording of information for two or more types of different optical disks, the damage caused to an optical disk or an objective lens by collision between the optical disk and the objective lens is avoided. An opt... | 04/29/2008 |
| 5329513 | Angular relationship detection device and method An encoder or an information reading device detects a scale with a probe that is vibrated at a predetermined frequency and amplitude in a predetermined direction. The angular positional relationship between the direction of probe vibration and the scale i... | 07/12/1994 |
| 4695904 | Information signal recording disc recorded with an end signal for selectively preventing unwanted access to predetermined recorded information and disc reproducing apparatus therefor An information signal recording disc comprises a first recorded region in which an information signal at least including a video signal is recorded, and a second recorded region in which an end signal is intermittently recorded. The end signal is used to ... | 09/22/1987 |
| 4476503 | Method for the recognition of an edge of a magnetic medium and a device for implementation of the method When setting a write gap or a read gap to a recording track on a magnetic medium, an edge of the medium is selected as a starting point, proceeding from which the write and read means are displaced in fixed track spacings. Appropriate method steps are: (a... | 10/09/1984 |
| 4352173 | Dictation display device A display device for use in a dictation transcription station comprising a plurality of selectively actuatable lighted segments (10). A pair of shift registers (25, 26) are used to retain information as to the location of recorded signals denoting ends of... | 09/28/1982 |
| 4123064 | Predetermined index gauge for locating a selected record band on a gramaphone record Method of making an index gauge based on a portion of a generally available record to be used for a generally comb shaped apparatus having a slot on one end to engage the center spindle of a record player and having an index gauge that engages a tone arm,... | 10/31/1978 |
| 4077635 | Device for selectively positioning the arm of a record player An improvement in a record player of the type having a base, turntable and a pivotally mounted, positionable tone arm comprising a device for selectively positioning the tone arm along the radius of a record to a repeatable position. The device comprises ... | 03/07/1978 |
| 4005871 | Marking device for a recording apparatus A marking device for a recording apparatus with a scriber movable from a rest position along a strip towards either of two marking zones provided on the strip. The scriber is coupled to an actuating lever pivoted in either direction from a rest position b... | 02/01/1977 |
| 3934884 | Precision piece selector on gramaphone record A generally comb shaped apparatus having a slot on one end to engage the center spindle of a record player, and having teeth that engage a tone arm to help position the tone arm to select a particular song from a record album.... | 01/27/1976 |
