David C Larsen

US Patent:

20050223859, Oct 13, 2005

Filed:

Jun 1, 2004

Appl. No.:

10/858560

Inventors:

David Larsen - Highland UT, US
Consuelo Larsen - Highland UT, US

International Classification:

B26D001/00

US Classification:

083013000, 083436900

Abstract:

A die cutting machine includes a body and first roller supported for rotation relative to the body. A second roller is supported for rotation relative to the body at a position spaced from the first roller. The first and second rollers define a feed space therebetween sized to accommodate a die assembly. The die cutting machine is configured to be supportable on a surface and moveable along the surface. The first roller is configured to rotate in response to movement of the die cutting machine along the surface. In one arrangement, the second roller may be configured to rotate along with rotation of the first roller. Furthermore, the first roller may be manually rotatable without movement of the die cutting machine along a surface. Also disclosed is a method of cutting or embossing with the disclosed die cutting machine.

US Patent:

20230089625, Mar 23, 2023

Filed:

Sep 20, 2021

Appl. No.:

17/448154

Inventors:

- Charlotte NC, US
David Larsen - Snohomish WA, US

International Classification:

H04B 1/04

Abstract:

In some examples, a system includes a digital-to-analog converter (DAC) configured to operate at a clock rate; a mixer configured to up-convert an intermediate-frequency (IF) signal from the DAC to a radio-frequency (RF) signal based on a local oscillator (LO) signal; and an RF filter configured to generate a filtered signal by at least removing, from the RF signal, frequency components greater than a difference between a frequency of the LO signal and one-half of the clock rate and less than a sum of a frequency of the LO signal and one-half of the clock rate, wherein an output node of the RF filter is configured to be coupled to an antenna for transmission of the filtered signal.

US Patent:

20150361600, Dec 17, 2015

Filed:

Jun 13, 2014

Appl. No.:

14/304603

Inventors:

Consuelo Larsen - Orem UT, US
David Larsen - Orem UT, US

International Classification:

D03D 47/36

Abstract:

Disclosed here is a yarn feeding device of use in making textile products by hand.

US Patent:

20150364146, Dec 17, 2015

Filed:

Jun 11, 2014

Appl. No.:

14/302083

Inventors:

David Larsen - Orem UT, US
Dan Smith - Orem UT, US

International Classification:

G10L 21/10

Abstract:

A method for obtaining visual feedback for vowel quality is disclosed. By filtering and decomposing audio signals in formants, one or more software modules and/or applications may determine the type of phoneme in an audio signal that corresponds to a vowel. First and second formants may be measured in their frequencies; subsequently frequencies values of first formant and second formant may be assigned as X and Y coordinates, respectively. These (X,Y) coordinates may be used for graphing points and trajectories of the points in a Cartesian coordinate system while the user is pronouncing a vowel. Thus, graphic feedback for vowel pronunciation may be obtained.

US Patent:

20150349713, Dec 3, 2015

Filed:

Jun 2, 2014

Appl. No.:

14/293945

Inventors:

- Morristown NJ, US
David Larsen - Woodinville WA, US

Assignee:

Honeywell International Inc. - Morristown NJ

International Classification:

H03C 1/14

Abstract:

Methods and devices are disclosed driving one or more P-Intrinsic-N (PIN) diodes by receiving an input and generating a plurality of pulses based on the input, a first pulse of the plurality of pulses controls a rise time of an RF envelope generated by an RF interface and a second pulse of the plurality of pulses controls a fall time of the RF envelope generated by the RF interface. The methods and devices may further be disclosed combining the plurality of pulses to generate a drive signal, delivering the drive signal to the RF interface including one or more PIN diodes, and generating the RF envelope by driving the one or more PIN diodes with the drive signal, and the amplitude or a pulse width of the first pulse is independently adjustable from the amplitude or the pulse width of the second pulse.