Did You Know...
...that in 1800 ether was first used by partyers as a fun diversion? Sniffing the gas led to hilarious and raucous laughter as people watched each other become more and more intoxicated and silly. Several doctors independently realized the value ether would have to anesthetize surgery patients. Of those who claimed rights to the "discovery," none had a happy ending. One had a seizure and died defending his rights. Another spent his life in an asylum because he had been denied acclaim. A third became addicted to chloroform and, in a New York City jail, he soaked a cloth in the drug, severed an artery and bled to death.
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| Number | Title | Issue Date |
| 6728681 | Interactive multimedia book An interactive multimedia book provides hands-on multimedia instruction to the user in response to voiced commands. The book is implemented on a computer system and includes both text and audio/video clips. The interactive multimedia book is accessed by voiced comma... | 04/27/2004 |
| 5872741 | Semiconductor memory device having voltage converters A semiconductor memory device has a voltage converter for converting a voltage level of an internal clock signal to obtain a high voltage level clock signal. The high level clock signal accelerates the transmission of the clock signal to latch circuits wh... | 02/16/1999 |
| 5154333 | Jaw cleaving device An apparatus and method for cleaving GaAs laser bars from a cell utilizes a first jaw applied to one end of a laser bar to propagate a cleavage and a second jaw applied to an opposite end which provides a biasing force that assures separation of the bar f... | 10/13/1992 |
| 4862376 | Bill of material interface to CAD/CAM environment A method for interfacing between a product planning conceptual design tool and a CAD/CAM environment allows an indented bill of materials to be imported to the CAD/CAM environment while retaining the characteristics as a primitive text file. The conceptua... | 08/29/1989 |
| 4858152 | Operator access to monitoring applications Information from multiple CICS host applications is gathered and the information is displayed on a single display screen. The information includes graphics, reports, and monitoring information. The display screens that the user is presented with are in a ... | 08/15/1989 |
| 4855822 | Human engineered remote driving system Methods and apparatus are provided for driving a vehicle from a remote control station achieving tele-operation of the vehicle. A television sensor mounted on the vehicle provides video image information which is reduced in bandwidth by a factor of approx... | 08/08/1989 |
| 4853878 | Computer input by color coding A display technique allows the user to input information to a computer in the form of color with character text. The technique provides an ergonomic approach to convey information to an application program by using color to specify functions or attributes... | 08/01/1989 |
| 4850017 | Controlled use of cryptographic keys via generating station established control values A method for controlling the use of a cryptographic key at a using station by a generating station in a network of generating and using stations is disclosed. A control value specifying the use of the cryptographic key is transmitted with a generated cryp... | 07/18/1989 |
| 4847770 | Initial terminal tester An automated initial terminal testing system tests the air pressure and leakage of the brake pipes and the operation of brakes of railroad trains (10) in a terminal yard before trains are allowed to go on a railroad. The system includes end of train devic... | 07/11/1989 |
| 4847761 | Automated bill of material A bill of material for a product is automatically created from a query session on the product structure. The user is first queried on functional product structure. A top down approach, rather than a focus on design details, is encouraged. As the query occ... | 07/11/1989 |
| 4847170 | Battery container and adapter End of train marker light equipment (10) has been designed with a battery compartment (13) which can receive either a lead/acid battery (100), a Ni/Cd battery pack (250) or a pair of lantern batteries (350 and 352). In a first configuration, the lead/acid... | 07/11/1989 |
| 4847785 | Interactive display for trend or bar graph A system for the interactive control of a display such as a CRT (cathode ray tube) or the like, produces a visual representation of at least one variable in the form of a trend or bar graph. The system includes a personal computer having a cursor control ... | 07/11/1989 |
| 4843567 | Device to assist adaptive reordering of sequential decisions A system for the adaptive reordering of sequential decisions in the search of a data base is provided with a device that simplifies and speeds up a heuristic search method by implementing in hardware the computation required for the adaptive reordering. T... | 06/27/1989 |
| 4841156 | Measurement of the thickness of thin films An ultraviolet source (14) directs selected ultraviolet radiation onto a thin film (10) to excite it. The thin film fluoresces, either naturally or as a result of adding fluorescing material. The amount of light fluoresced is proportional to the film thic... | 06/20/1989 |
| 4840056 | Fuel measuring system A fuel measuring system of the bubble type is adaptable for use with a plurality of tanks of predetermined differing geometries. The system employs at least two bubbling tubes located at predetermined locations in a tank. A predetermined volume flow of ai... | 06/20/1989 |
| 4841291 | Interactive animation of graphics objects A technique is described for animating graphics objects (sprites) on a display. The display manager allows a user to select a sprite from the display or from a sprite table. Then the user selects the operation to perform on the sprite. Enabled operations ... | 06/20/1989 |
| 4829292 | Method for displaying box cursors Box cursors consisting of lines of identical thickness are displayed using a bit inverting technique so that overlapped portions of the cursors may be differentiated. Masks are prepared, one for each of the box cursors, which have patterns which, when exc... | 05/09/1989 |
| 4829470 | Text flow around irregular shaped graphic objects An improved mixed object editor flows text around and into irregularly shaped graphic objects on a page so that all the "white" space on the page is filled. An irregularly shaped window which generally conforms to the shape of the graphic object is first ... | 05/09/1989 |
| 4823365 | Synchronization method and elastic buffer circuit An asynchronous communication system includes a clock recovery circuit (2) to which the received signal (1) is applied and which provides recovered data (3) to a frame delimiter detector (4). The frame delimiter detector in turn generates a frame start si... | 04/18/1989 |
| 4822485 | Recirculating sand filter valve A recirculating sand filter system for the treatment of waste water comprises a septic tank (10) for receiving waste water, a recirculating pump tank (18) connected to the septic tank for receiving effluent from the septic tank and one or more sand filter... | 04/18/1989 |
| 4818384 | Recirculating sand filter A recirculating sand filter system for the treatment of waste water comprises a septic tank (10) for receiving waste water, a recirculating pump tank (18) connected to the septic tank for receiving effluent from the septic tank, and one or more sand filte... | 04/04/1989 |
| 4817011 | Automated modeling method for tuning transformers A computer automated method and system is used to time transformers to produce a resonant circuit for matching elements to a circuit is disclosed. The modeling method uses a computer to select discrete values for resistive and capacitive loads to be conne... | 03/28/1989 |
| 4815052 | Automatic overvoltage protection circuit An automatic overvoltage protection circuit is provided for an electrical power supply of the type comprising a variable speed three phase alternator (50) having a permanent magnet rotor and three stator output windings (51, 52 and 53), a gated three phas... | 03/21/1989 |
| 4814687 | Following voltage/current regulator A following voltage/current regulator includes a field effect transistor (FET) (48) connected in series between an unregulated voltage source (44) and a load, such as a motor bridge circuit (50). The conduction of the FET is controlled by a control circui... | 03/21/1989 |
| 4815029 | In-line dynamic editor for mixed object documents A method for the intelligent, in-line, dynamic editing of documents containing mixed object types on a computer work station is disclosed. The mixed object types may be text objects, draw graphics objects, business graphics objects, and tables objects. Th... | 03/21/1989 |
| 4812968 | Method for controlling processor access to input/output devices A method for controlling processor access to input/output control units and devices connected to the control units to prevent control unit and device lookout due to the condition where the channel turn-around time becomes less than the device controller's... | 03/14/1989 |
| 4804431 | Microwave plasma etching machine and method of etching A conventional microwave over has been modified such that it may be used for plasma etching and cleaning. Oxygen or Argon gas is introduced into a vacuum chamber (18) inside a conventional microwave oven (10) that has been modified to allow gas from a can... | 02/14/1989 |
| 4795989 | MMW microstrip coupler having movable test probe A microwave and millimeter wave hybrid or monolithic microstrip test probe assembly provides a noninvasive radio frequency test point in a microstrip circuit. The probe assembly comprises a microstrip coupler. (12) adjacent a microstrip line (10) in the c... | 01/03/1989 |
| 4785197 | Tilt switch A gravity operated switching circuit, having particular application in end of train equipment, allows the microprocessor circuit board in the equipment to be turned off. The circuit turns the power off when the equipment is laid on its side after a predet... | 11/15/1988 |
| 4782463 | Method for generating display screens for a set of application programs by calling screen management subroutines A method for generating display screens for a set of application programs allows application programmers to write programs without having to code the specific locations on a computer display screen where information and data are to be displayed in fields ... | 11/01/1988 |
| 4780653 | Anti-stall motor drive An anti-stall motor drive circuit for a very slow running permanent magnet d.c. motor is disclosed. The slow running speed of the motor sometimes allows an insulating film to build up between the brushes and the commutator which causes the stalled conditi... | 10/25/1988 |
| 4780821 | Method for multiple programs management within a network having a server computer and a plurality of remote computers The procedure which allows users of a computer system comprising a plurality of computers connected in a local area network to share both file resources and application programs on the local area network without modification to existing programs which wer... | 10/25/1988 |
| 4779243 | Transducer array velocity sensor and processor system A differential transformer is used as a feedback sensor for generating an error signal sensed at the face of an element of a sonar transducing array. This error signal is used to correct the excitation signal to the transducer to correct both phase and am... | 10/18/1988 |
| 4767335 | Computerized academic quiz controller system An academic quiz controller system includes first and second pluralities of identical and interchangeable response stations (11, 12, 13, 14 and 21, 22, 23, 24) each provided with a switch (17) and an indicator light (16) activated by the switch when press... | 08/30/1988 |
| 4767969 | RF emission shield for CRT displays Certain applications require a CRT display to be well shielded against emitting RF electromagnetic energy. A shield placed at the neck portion of a CRT envelope inhibits RF emissions from being transmitted through the face portion of the CRT. The shield c... | 08/30/1988 |
| 4766566 | Performance enhancement scheme for a RISC type VLSI processor using dual execution units for parallel instruction processing Performance of a VLSI processor of the reduced instruction set computer (RISC) type is enhanced by executing two instructions simultaneously in the two execution units of the processor. There is very little increase in the cost of hardware. Three embodime... | 08/23/1988 |
| 4760484 | Protective inductive devices with increased ability to absord volt-seconds in an electrical conductor An inductive device composed of a bead of magnetic material, such as ferrite, has an aperture through which an electrical conductor is adapted to pass. The bead is formed unsymmetrically about at least one axis. The asymmetry of the bead alters the magnet... | 07/26/1988 |
| 4757549 | Freehand drawing containing invisible lines A computer based graphic editor has the capability of recognizing as a single graphic object a plurality of unconnected freehand strokes such as a signature. This makes possible editing a document with a signature, for example, without the various parts o... | 07/12/1988 |
| 4756827 | Liquid flow drainage control Improvements are disclosed for liquid flow drainage control in gravity type systems such as sewage septic tank systems. A plastic cap which is insertable into the ends of the drainage pipes that project into a distribution box is formed with an end face a... | 07/12/1988 |
| 4755803 | Air brake manifold all level reset An improved automatic train-line air brake pressure monitoring system includes circuits that emulate an automatic brake valve and cause an automatic brake manifold release whenever a four psi increase in pressure is sensed. The system includes a pressure ... | 07/05/1988 |
