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Patent No. 6368227

Method of swinging on a swing

A method of swing on a swing is disclosed, in which a user positioned on a standard swing suspended by two chains from a substantially horizontal tree branch induces side to side motion by pulling alternately on one chain and then the other.

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Attorney: Skjerven, Morrill, MacPherson, Franklin & Friel LLP


Number of patents: 163
Last date: December 19, 2000

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NumberTitleIssue Date
6163548Code synchronization unit and method
A pilot acquisition unit for code division multiple access (CDMA) communication systems is provided which includes a fast Hadamard transform (FHT) unit and a pre-Hadamard processing unit. The FHT unit determines the quality, in accordance with a metric, o...
12/19/2000
6140848Electronic driver circuit that utilizes resonance with load circuitry in combination with timed switching to reduce power consumption
A driver circuit (18) generates a circuit output signal (VDO) which is provided to an electrical conductor (12) that furnishes a conductor output signal (VBO) to a load (14). The circuit and conductor output signals make correspondin...
10/31/2000
6130554Programmable integrated circuit having a test circuit for testing the integrity of routing resource structures
A programmable integrated circuit (see FIG. 13) includes a plurality of routing resources including collinearly extending routing wire segments and a test circuit for testing the integrity of the routing wire segments. The routing resource structures incl...
10/10/2000
6130490X-Y stage with movable magnet plate
A stage assembly for precision movement in the x and y-directions, especially adapted for use in electron beam lithography for holding a reticle. The stage assembly includes a vacuum enclosure in which a magnet plate structure moves in the y-direction und...
10/10/2000
6124637Carrier strip and molded flex circuit ball grid array and method of making
A grid array assembly method and apparatus uses a flex circuitry substrate and includes providing a series of conforming flex circuitry substrates, the flex circuitry substrates include bonding pads and metallization on a first surface and, holes in the s...
09/26/2000
6119731Hollow plastic product
A method and apparatus for manufacturing a hollow plastic product is provided. In accordance with one aspect, into a mold half having a tubular groove portion and a projecting groove portion which projects outwardly from the tubular groove section is supp...
09/19/2000
6115586Multiple loop radio frequency synthesizer
A radio frequency synthesizer receives a relatively low frequency input signal and synthesizes from it a high frequency output signal whose frequency can be programmed to change in fine steps, for use e.g. in cordless telephone. The frequency synthesizer ...
09/05/2000
6113045Fitting adapted for holding spacedly a support member on an upright wall
A fitting includes a positioning plate and a holding member connected to the positioning plate by an elongate mounting post. The positioning plate has an outer major wall to serve as a faceplate, and a bore extending from a central area of the outer major...
09/05/2000
6115272Duty cycle based charge pump controller
An internal supply generator includes a charge pump, at least one regulator and a pump controller. The charge pump generates a charge pump signal whose voltage is higher than an input supply voltage. Each regulator produces a generally stable internal sup...
09/05/2000
6112325Method and device for detecting rate
Device for determining the rate of a received communication frame, including a plurality of encoded signal quality estimators, each at a different rate, a decision controller, connected to the encoded signal quality estimators, a decoder connected to the ...
08/29/2000
6104108Wedge magnet array for linear motor
A linear motor, suitable to drive a photolithography positioning stage, incorporates a magnet array having transverse magnets and wedge magnets. The transverse magnets are spaced at regular intervals along a direction parallel with their magnetic polariti...
08/15/2000
6104769Method and apparatus for acquiring and tracking the sampling phase of a signal
Apparatus for providing an optimized sampling phase to a received signal in a given channel, the received signal including inter-symbol interference. The apparatus includes a voltage controlled clock (VCC) for providing a VCC sampling phase, a first signa...
08/15/2000
6094256Method for forming a critical dimension test structure and its use
A method for forming a critical dimension test mark, and the use of the mark to characterize and monitor imaging performance is provided. Methods in accordance with the present invention encompass an exposure of an essentially standard critical dimension ...
07/25/2000
6093620Method of fabricating integrated circuits with oxidized isolation
A thin silicon epitaxial layer, formed on a silicon substrate, is subdivided into electrically isolated pockets by a grid of oxidized regions of epitaxial silicon material which extend through the epitaxial layer to a laterally extending PN junction....
07/25/2000
6090680Manufacturing process for a capacitor
A method for manufacturing a capacitor, applied to a memory unit including a substrate forming thereon a dielectric layer forming thereon a first conducting layer, includes the steps of a) forming a sacrificial layer over the first conducting layer, b) pa...
07/18/2000
6088449Tri-signature security architecture systems and methods
An encryption system and method utilizes a bit stream, called a "master signature", which is divided into bytes with each byte being assigned a byte address. A portion of the master signature, called an "access signature" is randomly selected to encode th...
07/11/2000
6087854High speed line driver with direct and complementary outputs
An improved line driver is disclosed. In one embodiment, the line driver has three inverters and a pass gate. The first inverter has a first input terminal connected directly to the input line of the line driver. The first inverter also has an output term...
07/11/2000
6086175Altar with vertically movable boxes
An altar includes a cabinet body and a platform, which is located in front of the cabinet body and which has a flat top surface. The cabinet body has an interior chamber and several columns of compartments, each of which is open to the interior chamber an...
07/11/2000
6088668Noise suppressor having weighted gain smoothing
A noise suppressor is provided which includes a signal to noise ration (SNR) determiner, a channel gain determiner, a gain smoother and a multiplier. The SNR determiner determines the SNR per channel of the input signal. The channel gain determiner determ...
07/11/2000
6085244Dynamic test update in a remote computer monitoring system
A remote monitoring system automatically communicates system diagnostic information from a monitored computer system to a remote service center at regular intervals. The monitored computer system includes a plurality of monitored computers coupled togethe...
07/04/2000
6084428Programmable integrated circuit having shared programming conductors between columns of logic modules
A field programmable gate array has columns of logic modules. A programming conductor used to conduct programming current to program antifuses of the field programmable gate array extends between two adjacent columns of logic modules. First wire segments ...
07/04/2000
6084891Bi-directional channel analysis
A method for analyzing the channel using the preceding slot synchronization sequence is provided. The method of the invention is for operating a receiver receiving a signal frame in a dynamic channel wherein the signal frame includes a plurality of slots,...
07/04/2000
6081412Gate oxide breakdown protection circuit for deep submicron processes
An output driver prevents gate oxide breakdown and reverse charge leakage from a bus to the internal power supply. When the voltage on the bus exceeds the internal supply voltage or when the driver is powered down, a reference voltage generator provides i...
06/27/2000
6078505Circuit board assembly method
A method is disclosed for attaching a device package to a circuit board with a chip mount area that has a set of elongated pads located near the perimeter of a chip mount area. In accordance with this method, a mask is formed on the circuit board. A plura...
06/20/2000
6076098Adder for generating sum and sum plus one in parallel
A circuit is disclosed herein which generates the sum of two numbers (A and B) and the sum plus 1 in parallel so as not to take any additional time to generate the sum plus 1 value. The circuit comprises a carry look-ahead (CLA) tree portion and a summer ...
06/13/2000
6073993Body structure for a motor vehicle
In a body structure for a motor vehicle of a space frame type in which a rear pillar made of an extruded aluminum alloy member and joining a roof side member and a floor side member includes an inwardly curved section to avoid an interference with a rear ...
06/13/2000
6074172Controller for compressor
A controller is provided to control and fix the stroke and frequency of the piston movement of the compressor under various operating conditions. The controller includes a signal generator for providing a first signal, a detector generating a second signa...
06/13/2000
6070200Host adapter having paged data buffers for continuously transferring data between a system bus and a peripheral bus
A host adapter has receive and transmit data paths, each of which includes a buffer (formed of storage elements) for temporarily holding the data being transferred by the host adapter. The host adapter uses each of the two buffers for storing only the dat...
05/30/2000
6069417Stage having paired E/I core actuator control
A fine stage control system for use for instance in a semiconductor lithography machine, uses a pair of opposing (push-pull) E/I core actuators to move the stage with high precision along an axis. The paired actuators are coupled together mathematically i...
05/30/2000
6069909Excimer laser with improved window mount
An improved excimer laser is disclosed. In one embodiment, the laser includes laser beam generating circuitry operable to generate a laser beam and a vessel enclosing the laser beam generating circuitry. The vessel contains a volume of gas conducive to th...
05/30/2000
6066961Individually accessible macrocell
A circuit connectable to a microcontroller having an address bus, a data bus, a read line and a write line include a programmable logic device (PLD) array, at least one input pin, at least two databus macrocells and a bit mask register. The input pin is c...
05/23/2000
6060954Oscillator device having inductor formed inside multi-layer circuit board
An oscillator device including at least an inductor, a resistor, a transistor and a capacitor is disclosed. The oscillator device further includes a first transmission layer for electrically connecting the capacitor, the resistor and the transistor; a sec...
05/09/2000
6057171Methods for determining on-chip interconnect process parameters
A method provides estimations of physical interconnect process parameter values in a process for manufacturing integrated circuits. The method includes fabricating test structures each providing a value of a measurable quantity corresponding to a value wi...
05/02/2000
6049620Capacitive fingerprint sensor with adjustable gain
The present invention relates to a fingerprint sensing device comprising a planar array of closely-spaced capacitive sense elements. When a finger is placed in close proximity to the sensing device, the capacitive sense elements measure a capacitance betw...
04/11/2000
6043486Absolute standard reference materials for low-level concentration measurements
A concentration measurement device is calibrated for a target element by performing a concentration measurement on a reference standard sample which includes a number of atoms of a radioactive marker element in known ratio to a number of atoms of the targ...
03/28/2000
6040984Printed circuit board with opposed bonding shelves for semiconductor chip wire bonding at different levels
High density bonding pads in a printed circuit board for mounting a semiconductor chip are provided using a simple structure and at a low cost, while minimizing the difference in levels of bonding pads. A printed circuit board for mounting semiconductor c...
03/21/2000
6038029Method and apparatus for alignment of a wafer
A semiconductor production tool which provides alignment of a wafer at a fab station thereof includes an optical system, a wafer translation mechanism, a field of view translation unit and a unit for determining alignment. The optical system has a field o...
03/14/2000
6034885Multilevel memory cell sense amplifier system and sensing methods
A dynamic random access memory device stores two bits of digital data in each memory cell. Two sense amplifiers are provided to sense and reproduce any of the four binary values 11, 10, 01, 00 representing a strong one, a weak one, a weak zero and a stron...
03/07/2000
6031464Security system based on certification
The data containing reference data is transformed into signature data by a method which depends on a variable generated by the reference data, and the identification data is certified by inverse transformation of the signature data. The signature generati...
02/29/2000
6031932Automatic inspection of printing plates or cylinders
A method for inspecting a surface of a printing medium, the method comprising the steps of acquiring an image of the surface or a portion thereof, digitizing the acquired image whereby a digitized real representation of the surface or portion is obtained....
02/29/2000
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