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Magician Harry Houdini patented a "Diver's Suit" enabling the wearer to "quickly divest himself of the suit while being submerged and to safely escape and reach the surface of the water."
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| Number | Title | Issue Date |
| 5260868 | Method for calendaring future events in real-time A mechanism and method for calendaring a plurality of events such as scheduling the operation of interrelated machines which perform a process flow. Future time is divided into segments, called buckets, of increasing length. The first two buckets are of t... | 11/09/1993 |
| 5249128 | System and method for determining the distance to an energy emitting object A method and system for range detection using a passive infrared sensing device (10) is disclosed. The method includes determining a region (35,38) on a moving object, such as an automobile (13, 36, 37), the region (35, 38) having a size characteristic of... | 09/28/1993 |
| 5235686 | Computer system having mixed macrocode and microcode A computer system uses microcode subroutines to execute complex macroinstructions. Each macroinstruction is used to index a table. Simple macroinstructions have a single microinstruction counterpart in the table, and such microinstruction is performed dir... | 08/10/1993 |
| 5218537 | System and method for using a computer to generate and teach grammar lessons A grammar learning aid is implemented with a processor and read only memory programmed in a manner that minimizes memory space and maximizes effective teaching. The programming is based on a unification grammar, in which sentences are determined by their ... | 06/08/1993 |
| 5210872 | Critical task scheduling for real-time systems A task scheduling method for a real time computer system having automatic memory management or some other resource that is consumed in terms of a bit rate. The method ensures that non critical tasks do not prevent the timely execution of critical tasks. E... | 05/11/1993 |
