Storage Technology Corporation

Optomec, Inc.

Gigamax Technologies, Inc.

Identix Corporation

Network Systems Corporation

Other

Wavecrest Corporation

John David Hamre

Peng T Li

John W Svenkeson

Steven J Fraasch

Kurt Karl Christenson

Chad Conroy

Michael J Renn

James Q Feng

Jason A Paulsen

Reed Stillman Nelson

Jan Brian Wilstrup

Steven John McCoy

Daniel Frederick Maase

John S Wright

Christopher John Van Krevelen

Denton G Wicklund

Steve McCoy

Don J Hodapp, Jr

Christopher John Vankrevelen

Steven D Barkley

Daniel F Maase

An apparatus and method for depositing an aerosol that has an ultrafast pneumatic, shutter. The flow of aerosol through the entire deposition flow path is surrounded by at least one sheath gas, thereby greatly increasing reliability. The distance between the aerosol switching chamber and a reverse gas flow chamber input is minimized to reduce switching time. The distance from the switching chamber to the nozzle exit is also minimized to reduce switching time. The gas flows in the system are configured to maintain a substantially constant pressure in the system, and consequently substantially constant flow rates through the deposition nozzle and exhaust nozzle, to minimize on/off switching times. This enables the system to have a switching time of less than 10 ms.

High reliability sheathed transport path for aerosol jet devices

Methods and apparatuses for controlling aerosol streams being deposited onto a substrate via pneumatic shuttering. The aerosol stream is surrounded and focused by an annular co-flowing sheath gas in the print head of the apparatus. A boost gas flows to a vacuum pump during printing of the aerosol. A valve adds the boost gas to the sheath gas at the appropriate time, and a portion of the two gases is deflected in a direction opposite to the aerosol flow direction to at least partially prevent the aerosol from passing through the deposition nozzle. Some or all of the aerosol is combined with that portion of the boost gas and sheath gas and is exhausted from the print head. By precisely balancing the flows into and out of the print head, maintaining the flow rates of the aerosol and sheath gas approximately constant, and keeping the boost gas flowing during both printing and shuttering, the transition time between printing and partial or full shuttering of the aerosol stream is minimized. The pneumatic shuttering can be combined with a mechanical shutter for faster operation. A pre-sheath gas can be used to minimize the delay between the flow of gas in the center and the flow of gas near the sides of the print head flow channel.

Shuttering of aerosol streams

Systems, apparatus, and methods for providing a micro-scanning system with low settle times for fingerprint image capture are provided. In one embodiment, a flexure apparatus includes a stiffening device and parallelogram structures. The flexure apparatus is configured to move an image sensor to different positions to capture images that can be used to form a composite image according to micro-scanning techniques. The stiffening device allows the resonant frequency of the flexure apparatus to be established at a higher level than the operation frequency of the flexure apparatus, minimizing the settle time required for the flexure apparatus.

Low settle time micro-scanning system

Apparatus and methods for providing an optically based planar scanner for generating an image are provided. In one embodiment, the apparatus includes a switchable Bragg grating. An area of the switchable Bragg grating is configured to be activated to direct light to a platen. The platen is configured to reflect the light to a waveguide or to refract the light. The light reflected to the waveguide is guided to a light detector. By activating a number of the areas of the switchable Bragg grating and measuring the intensity of the light with a light detector, an image of an object contacting the platen may be formed.

Optically based planar scanner

A system, method, and apparatus for obtaining a record of logic level transitions within a signal, and for accurately determining a voltage-time pair exhibited by the signal. To achieve these ends, a front-end device may be mated to a real-time sampling system, such as an oscilloscope. The front-end device effectively permits the oscilloscope to observe signals exhibiting greater data rates than otherwise possible without the front-end device.

Method and apparatus for a real time signal integrity oscilloscope

A method and system for removing the effect of intersymbol interference (ISI) from a data record indicating times of logic level transitions exhibited by a data signal that has been distorted by ISI exhibited by a system having a particular step response may perform the following acts. The data record may be received, and a transition from within the data may be selected record for removal of ISI. Preceding transitions within the data record are then inspected. A time defect is obtained, based at least in part upon the inspected preceding transitions. Finally, the data record is adjusted, based upon the time defect, to indicate a new time of transition for the selected transition, thereby removing the effect of ISI for the selected transition.

Waveform analyzer

A method of preparing a signal for measurement includes receiving the signal and selecting a first edge and a second edge within the signal. The method also includes delivering the first edge to a time interval measurement system after expiration of a first delay period and delivering the second edge to a time interval measurement system after expiration of a second delay period.

System and method for removal of frequency-dependent timing distortion

Method and apparatus for recording a real time signal

A dynamic perimeter circular bus method and system includes a serial interconnect and elements connected in a serial loop through the serial interconnect. In operation, a variable sized loop word is transferred between elements along the serial loop. A sync character of the loop word is transferred from element to element along the serial loop. The sync character is indicative of the beginning of the loop word. At least one present character of the loop word after the sync character is then transferred from element to element along the serial loop. A present character is then asserted at an element to indicate that a data word follows the asserted present character in the loop word. The data word from the element is then put on to the loop word after the asserted present character thereby increasing the size of the loop word. The data word of the loop word is then transferred from element to element along the serial loop.

Method and system for transferring variable sized loop words between elements connected within serial loop through serial interconnect

A method of forming a conductive device includes forming a conductive layer on a substrate; etching the conductive layer to form a plurality of conductive traces; etching the conductive layer to form at least one mask feature; and removing substrate material that is not covered by the at least one mask feature so as to form at least one mechanical alignment feature.

Method of forming alignment features for conductive devices

A DC balanced, single bit manipulation method and system for encoding a serial data stream having a plurality of low and high bits includes generating a pulse stream. The serial data stream is to be transferred along a serial loop. The pulse stream includes a series of pulses each having a nominal time duration. A pulse of the pulse stream is modified to have a time duration longer than the nominal time duration to encode a transition of the data stream from a low bit to a high bit. A pulse of the pulse stream is modified to have a time duration shorter than the nominal time duration to encode a transition of the data stream from a high bit to a low bit. The time duration of a pulse of the pulse stream is maintained at the nominal time duration to encode two sequential high bits of the data stream. The time duration of a pulse of the pulse stream is maintained at the nominal time duration to encode two sequential low bits of the data stream. A feature of the DC balanced, single bit manipulation method and system is that it is self clocking.

Three state pulse width modulation code

A conductive device includes a substrate and a plurality of conductive traces supported by the substrate. Each trace has a contact portion. Moreover, sufficient substrate material is removed from the substrate to sufficiently lessen stiffness of selected ones of the contact portions so that the selected ones of the contact portions are independently displaceable with respect to each other. A method of manufacturing such a conductive device is also provided.

Compliant contacts for conductive devices

A conductive network includes a first conductive device having multiple first signal layers. Each first signal layer has a first substrate and a plurality of first conductive traces disposed on one side of the first substrate. The network further includes a second conductive device having multiple second signal layers. Each second signal layer has a second substrate and a plurality of second conductive traces disposed on one side of the second substrate. In addition, the network includes at least one bridge layer for electrically joining together the first and second conductive devices. The at least one bridge layer has a bridge substrate and a plurality of bridge traces supported by the bridge substrate.

Growing community of inventors

Plymouth, MN, United States of America

John David Hamre