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| Number | Title | Issue Date |
| 5315288 | Method and apparatus for controlling electric circuit output level in backup alarms lighting fixtures, sensors and the like Two volume levels may be produced in a backup alarm merely by reversing polarity of the DC power connections to the circuit of the present invention. The magnitude of output power produced by any device powered by a DC source may be switched between two l... | 05/24/1994 |
| 5297141 | Ethernet automatic adapter interface card An Ethernet adapter card for automatically switching a workstation into a network is provided. The adapter card utilizes a current circuit to sense current drawn by an external communications network and a circuit for automatically switching between a car... | 03/22/1994 |
| 5269796 | Method for subligamentous endoscopic transverse carpal ligament release surgery An improved method and instrument design for performing endoscopic transverse carpal ligament release surgery. The improved instrument design comprises a working end, such as a knife blade, a rasp, a curette or a blunt right angle probe, connected to a ha... | 12/14/1993 |
| 5269006 | Method and apparatus for arbitrating access to a microprocessor having real and protected modes A microprocessor access arbitration network which arbitrates among HOLD, RESET and REFRESH request commands by controlling a preempt bus so that a system memory refresh cycle is never delayed by a DMA or bus master operation is described. If a HOLD reques... | 12/07/1993 |
| 5263132 | Method of formatting documents using flexible design models providing controlled copyfit and typeface selection A method for typographic design of a printed document utilizing typographical parameters designed by an expert typographer is provided. A standard body of text is executed in a standard font and a selected format by an expert design typographer to provide... | 11/16/1993 |
| 5241625 | Screen image sharing among heterogeneous computers A system for remotely observing and optionally controlling information, including text and graphical images, displayed on a computer from among both homogeneous and heterogeneous computers coupled in a network or via other transport media such as magnetic... | 08/31/1993 |
| 5239464 | Interactive video system providing repeated switching of multiple tracks of actions sequences An improved video system that enables a player to interact with mid-air stereo perception images of foreshortened perspective animation and with animation displayed on the projection screen or monitor, by controlling the motions of a robotic simulation ap... | 08/24/1993 |
| 5239463 | Method and apparatus for player interaction with animated characters and objects An improved video system that enables a player to interact with mid-air stereo perception images of foreshortened perspective animation and return the animation back to the playing field on the projection screen or monitor, or to effect other interactive ... | 08/24/1993 |
| 5228076 | High fidelity speech encoding for telecommunications systems A user-orientated telephone instrument including high-fidelity speech encoding, encryption capability and many function presently provided by centralized call processing is described. Utilizing an ADPCM encoding process including forward error correction,... | 07/13/1993 |
| 5226163 | File characterization for computer operating and file management systems A tool for characterization of files in a computer having an operating and file management system is described. The tool provides consistent definition and design of the functionality and appearance of icons and symbols used with operating environment pro... | 07/06/1993 |
| 5214793 | Electronic billboard and vehicle traffic control communication system A communication system uses simple microwave transmitters disposed along roadways and in-vehicle mounted receivers to transmit encoded signals to produce location-specific commercial, traffic regulatory, emergency and other information to operators of mot... | 05/25/1993 |
| 5199268 | Automatic in-feed conveyor system for an ice injector system An automatic in-feed conveyor system for use with an ice injector, having three sections of roller conveyors, a pallet shuttle, and sensors for detecting stacks of cartons and providing signals to a controller. The first conveyor section is a powered conv... | 04/06/1993 |
| 5187783 | Controller for direct memory access A direct memory access controller for computer systems in which the data may be manipulated and acted upon during a transfer to and from locations in memory, or from locations in memory to and from input/output devices. For computer systems having data wo... | 02/16/1993 |
| 5187779 | Memory controller with synchronous processor bus and asynchronous I/O bus interfaces An asynchronous memory control Unit for asynchronously controlling access to and from system memory of a microcomputer system in response to control signals from conventional and state-of-the-art microcomputer I/O buses is described. The asynchronous memo... | 02/16/1993 |
| 5174759 | TV animation interactively controlled by the viewer through input above a book page A video system enables the operator to repeatedly touch a study object to change the action according to dramatics or game on a video display. A educational embodiment enables that student to touch the page of a printed book and effect multiple types of video ... | 12/29/1992 |
| 5166924 | Echo cancellation in multi-frequency differentially encoded digital communications A differentially encoded digital signal waveform is generated as a discrete time representation of a desired analog signal utilizing multi-frequency modulation techniques. The computational capability of present day, industry-standard microcomputers equip... | 11/24/1992 |
| 5150357 | Integrated communications system Information pathways for communications among personnel, among computers, and between personnel and computers, in a local communication system, including remote communications via leased lines or the public network is described. To a public central office... | 09/22/1992 |
| 5148453 | Parallel sync detection A parallel sync circuit comprising a serial-to parallel converter for converting an input serial into a corresponding parallel signal, a phase detector for detecting possible phase of a sync word in the parallel signal and generating a phase signal respon... | 09/15/1992 |
| 5111409 | Authoring and use systems for sound synchronized animation A general purpose computer, such as a personal computer, is programmed for sound-synchronized random access and display of synthesized actors ("synactors") on a frame-by-frame basis. The interface between a user and the animation system is defined as a st... | 05/05/1992 |
| 5108096 | Portable isotonic exerciser A self-contained exerciser provides eccentric, concentric and isometric, as well as vertical and horizontal exercise for nearly all muscles of the human body. The exerciser includes body pads and handles joined together with latex surgical tubing which is... | 04/28/1992 |
| 5097437 | Controller with clocking device controlling first and second state machine controller which generate different control signals for different set of devices A controller for controlling a microprocessor-based system incorporates two cooperatively operating state machine controllers and is capable of interfacing with bus and memory subsystems while maintaining synchronous handshake with more than one type of m... | 03/17/1992 |
| 5095567 | Baby back support An wearable, light weight infant supporting device to aid in learning to sit. The device consists of a triangular cross section pillow-like back support and attaching straps for snugly securing the back support to the infant. The back support is placed at... | 03/17/1992 |
| 5081743 | Friction stay and adjustable friction slider A slider for a track, such as the track of a friction stay, comprises a slider body adapted to be slidably received in the track, and slider body includes a recess having a cam mounted therein. Rotation of the cam causes the curved portions of the cam to ... | 01/21/1992 |
