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"That’s an amazing invention, but who would ever want to use one of them?"
President Rutherford B. Hayes ; Said in 1876, after Alexander Graham Bell demonstrated the telephone to him at the White House
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| Number | Title | Issue Date |
| 7446644 | Universal hands free key and lock system Methods and systems are provided for a universal key that enables a user to have access to any type of secured portal, both physical and electronic, in a wireless, hands-free, distance-independent manner without requiring contact or line of sight access between the ... | 11/04/2008 |
| 7421660 | Method and apparatus to visually present discussions for data mining purposes A method of organizing information is disclosed. The method comprises providing a visualization of actor communications in the context of one or more discussion, a discussion including at least one actor and at least one documented communication. ... | 09/02/2008 |
| 7421022 | Method for robust and stable convergence of blind LMS based adaptation of coefficients for a continuous time FFE-DFE A continuous time electronic dispersion compensation architecture using feed forward equalization and a non-linear decision feedback equalization forms an output signal by a linear combination of successively delayed versions of the input signal and the sliced outpu... | 09/02/2008 |
| 7421021 | Adaptive signal equalizer with adaptive error timing and precursor/postcursor configuration control An adaptive signal equalizer with a feedforward filter in which the feedback error signal and corresponding incoming data signal are dynamically aligned in time using signal interpolation, and further, to control the precursor/postcursor filter taps configuration, t... | 09/02/2008 |
| 7400527 | Bit symbol recognition method and structure for multiple bit storage in non-volatile memories Storage of information represented by a multi-bit word in a single non-volatile memory cell is made possible by programming the threshold voltage of the non-volatile memory to a specific threshold level corresponding to the multi-bit word. Stored or generated multi-... | 07/15/2008 |
| 7395938 | Method and apparatus for selective engagement of shelf divider structures within a shelf management system Apparatus and method for selectively engaging and securing an array of shelf dividers to a mounting device which is securable to a display shelf. In the first form a divider is characterized by a divider structure having an elongated vertical wall and elongated hori... | 07/08/2008 |
| 7298538 | Rotary optical switch An apparatus for directing a light path sequentially between multiple positions. A rotary switch rotates a light beam from a prism relative to a plurality of optical elements arranged radially on a switch body. In one embodiment, a prism rotates in the switch body, ... | 11/20/2007 |
| 7257706 | Method of securing a document in a system and controlling access to the document and a seal for use in the method An efficient multicast key management is achieved by using seals. A security server generates a seal. In one embodiment, the seal contains a key. In another embodiment, the seal contains information for generating a key. An application server requests the seal from ... | 08/14/2007 |
| 7251032 | Optical monitoring system with molecular filters An optical monitoring system for determining the constituents of a sample or specimen. An absorption spectrum is obtained from a sample and is passed through one or more filters having a specified absorption spectrum defined by a single atom or a compound. If the fi... | 07/31/2007 |
| 7181891 | Acoustical sound proofing material and methods for manufacturing same An improved acoustical damping wall (ceiling or floor) or door material comprises a laminar structure having as an integral part thereof one or more layers of viscoelastic material which also functions as a glue and one or more constraining layers, such as metal, ce... | 02/27/2007 |
| 7170349 | Low voltage broadband gain cell T-coil structures are used in one embodiment to inject programmably-variable amounts of transistor biasing currents into the respective drains of current sinking transistor means of a broadband differential amplifier such that, when the differential amplifier is in ... | 01/30/2007 |
| 6937055 | Programmable I/O buffer A programmable input/output buffer has a first plurality of pull-down transistors connected between a supply voltage and an electrical system conductor on the integrated circuit and a second plurality of pull-down transistors connected between the electrical conduct... | 08/30/2005 |
| 6825644 | Switching power converter A switching power converter including a ring oscillator constructed using a plurality of series connected inverters is utilized to generate a plurality of waveforms. A selection circuit, in cooperation with an exclusive OR gate, produces an output signal from the ex... | 11/30/2004 |
| 6652936 | Method of labeling articles having convex surfaces Method or applying heat shrinkable segments of material (16) (e.g., labels or ornamental bands) to articles (25) (e.g., containers or ornaments) which have convex surfaces. The segment (16) is attached at both ends by adhesive to the convex surface (46) (... | 11/25/2003 |
| 6626640 | Fan with reduced noise A rotating blade with reduced noise for use, for example, in a fan or other fluid pumping structure, is disclosed. The structure includes a housing, a hub rotatably coupled to the housing, a plurality of blades, each with an inner edge attached to the hub... | 09/30/2003 |
| 6437616 | Delay lock loop with wide frequency range capability A delay lock loop circuit is disclosed which includes a delay block which receives the clock signal and delays the clock signal by a selected amount to generate the delayed clock signal. A phase detector receives the clock signal and the delayed clock sig... | 08/20/2002 |
| 6242345 | Batch process for forming metal plugs in a dielectric layer of a semiconductor wafer A batch process for the high-pressure forming of metal plugs in the dielectric layers of semiconductor wafers. After holes are etched in the dielectric layer of each wafer, and a layer of a metal such as aluminum deposited over the dielectric, both the et... | 06/05/2001 |
| 6205661 | Method of making a rocket thrust chamber A fabricating method for a one-piece refractory metal rocket engine chamber is described. Hollow liner sections of a platinum group metal or alloy are inserted into a chamber barrel portion to form the combustion chamber, connecting into a conical portion... | 03/27/2001 |
| 5831313 | Structure for improving latch-up immunity and interwell isolation in a semiconductor device A structure for improving latch-up immunity and interwell isolation in a semiconductor device is provided. In one embodiment, a substrate has an upper surface and a first dopant region formed therein. The first dopant region has a lower boundary located b... | 11/03/1998 |
| 4894533 | Optical rotary encoder An optical rotary encoder eliminates the necessity of relatively positioning a code plate and a click mechanism therefor so that it can be assembled with ease. The code plate is mounted for rotation relative to a stationary plate member, and the click mec... | 01/16/1990 |
| 4823634 | Multifunction tactile manipulatable control A multifunction human digit control includes a rotating cylinder journalled in a movable bar slidable in a groove in a deflectable support track. Rotation of the cylinder by a thumb or finger generates a first motion signal and movement of either or both ... | 04/25/1989 |
| 4811206 | Data processing system with overlapped address translation and address computation A method of operating a data processing system using virtual memory in which virtual memory addresses are formed by a base register value and a displacement value and are mapped to real memory addresses includes the steps of adding the base register value... | 03/07/1989 |
| 4807124 | Register addressing system for efficient microroutine sharing and optimization A microcoded data processing system utilizes common microcode execution routines for both register-to-register operations and memory-to-register operations. The system includes a memory data register for storing an operand for use in a memory-to-register ... | 02/21/1989 |
| 4805015 | Airborne stereoscopic imaging system The imaging system includes widely-spaced sensors on an airborne vehicle providing a base-line distance of from about five to about 65 meters between the sensors. The sensors view an object in adjacent air space at distances of from about 0.3 to 20 kilome... | 02/14/1989 |
| 4804853 | Compact particle flux monitor A compact particle flux monitor is formed with an enclosure through which a laser beam is directed by a lens. An aperture in the enclosure allows free particles which are to be detected to pass through a sensing area at a limiting acceptance angle thereby... | 02/14/1989 |
| 4800419 | Support assembly for integrated circuits A composite support assembly for an integrated circuit chip includes a rigid lead frame that is attached to a relatively thin flexible tape-like structure. The tape-like structure is etched with inner lead fingers and outer lead fingers to allow a short p... | 01/24/1989 |
| 4800303 | TTL compatible output buffer This invention discloses a TTL compatible output buffer circuit which provides that in the state where the output signal thereof is high, no substantial current is provided inward of the buffer circuit from the output signal lead over a wide range of volt... | 01/24/1989 |
| 4798810 | Method for manufacturing a power MOS transistor A process for manufacturing a DMOS transistor in accordance with the present invention includes the steps of forming a layer of gate insulation (12, 14) on an N type substrate (10). A layer of polycrystalline silicon (16) is formed on the gate insulation ... | 01/17/1989 |
| 4797015 | Roller cage assembly for use in a bearing A roller-cage assembly for use in a bearing includes a cylindrical cage provided with a plurality of openings extending axially and spaced apart from one another circumferentially and a plurality of rollers, each of which is received in a corresponding on... | 01/10/1989 |
| 4797803 | Switching power supply VCO An inventive oscillator, inter alia, is disclosed which can be used to generate a frequency modulated control signal or a pulsewidth modulated control signal for application to a switching means in a switching power supply. The output voltage of a power s... | 01/10/1989 |
| 4797850 | Dynamic random access memory controller with multiple independent control channels In a data processing system, a DRAM controller which is incorporated on a single semiconductor chip employs multiple column address strobe input signals that drive multiple column address strobe output signals respectively. The multiple signal channels fo... | 01/10/1989 |
| 4795880 | Low pressure chemical vapor deposition furnace plasma clean apparatus Cleaning of low pressure chemical vapor deposition (LPCVD) furnaces is accomplished "in-situ" at furnace operating temperatures. Radio frequency (RF) power is coupled into reactive gases, that have been metered into the evacuated furnace tube, using the f... | 01/03/1989 |
| 4794515 | Protection of data in a multiprogramming data processing system A data processing system operates in a multiprogramming mode in which a plurality of different tasks are performed, at least one of the tasks being interruptable by another one of the tasks, and the system includes at least one facility which is not used ... | 12/27/1988 |
| 4794436 | High voltage drifted-drain MOS transistor A heavily doped P region is formed at the end of a lightly doped P- drain extension adjacent to the channel of a P channel MOS transistor. If the PMOS transistor is fabricated in an N-well surrounded by P- type material, a parasitic vertical transistor is... | 12/27/1988 |
| 4794508 | PWM control circuit for a non-symmetrical switching power supply A control circuit is disclosed which provides a pulsewidth modulated, quasi-squarewave control signal to a switching transistor in a non-symmetrical switching power supply. A primary winding of a sense transformer is coupled in series with a switching tra... | 12/27/1988 |
| 4794522 | Method for detecting modified object code in an emulator A method of emulating the instructions of a target computer in the instructions of a host computer to operate the host computer in accordance with the target computer instructions, the target computer having the capability of modifying its own instruction... | 12/27/1988 |
| 4792199 | System for detection of extremely small particles in a low pressure environment A system for detection of extremely small particles in a low pressure environment or vacuum includes a vapor column in which a diffusion oil is vaporized, a saturation column in which vaporized oil is cooled and supersaturated, and means for directing a l... | 12/20/1988 |
| 4792531 | Self-aligned gate process Disclosed is a process for producing a field effect transistor to provide a uniformity of spacing between the gate and drain as well as the gate and source.... | 12/20/1988 |
| 4790897 | Device for bonding of lead wires for an integrated circuit device Bonding of lead wires between electrical contact points of an integrated circuit and the conductive elements of a flexible tape-like structure on which the integrated circuit is seated is accomplished by means of a vacuum chuck having distributed recesses... | 12/13/1988 |
| 4791322 | TTL compatible input buffer This invention discloses a TTL compatible input buffer which includes means for preventing appreciable current flow into the buffer circuit upon input voltage being supplied to the input signal lead which is substantially above the voltages supplied to th... | 12/13/1988 |
