`Q
`
`!\
`
`(J
`';>-
`
`-
`
`(.
`~.
`
`Handi Quilter and Tacony v. Bernina
`IPR2013-00364
`Bernina Exhibit 2013-1
`
`
`
`Maria Shetler
`23539 Forest Hill Drive
`Ramona, CA 92065
`
`To Whom It may Concern:
`
`April 7, 2009
`
`This is to confirm that I attended a Ramona quilting class in 2002 where Dorothy
`Koerner expressed that her husband was developing a device to make smooth
`quilting easy and that he needed a junk sewing machine to experiment with. I told
`her then that I had an old Singer machine that had problems. I had obtained repair
`estimates, but they were much too high for such an old machine. I told Dorothy that
`Mister Koerner could have my old Singer.
`
`A short time later I arranged to meet Mister Koerner in the parking lot of the
`Episcopal church on San Vicente Blvd, to give him the machine. The meeting was on
`a Wednesday in July of 2002. I am not sure of which Wednesday, but I do remember
`that it was after a meeting of the "Prayers and Squares" quilting group that met at
`the church on Wednesdays.
`
`·~
`Sincerely yours,.
`.
`·~ .
`~~n~---~
`
`Maria Shetler
`
`Handi Quilter and Tacony v. Bernina
`IPR2013-00364
`Bernina Exhibit 2013-2
`
`
`
`I Steve Koerner state as follows:
`
`I hold a Bachelors degree in physics and a masters degree in electronic
`
`engineering.
`
`I have worked as an electronic engineer for over 33 years, most recently
`
`specializing in digital signal processing equipment.
`
`I currently own and manage an engineering consulting firm called Mesa
`
`lnventure.
`
`I am the eldest son of Dorothy and Ralph Koerner.
`
`I attended a family party at my parents home in Ramona California in mid(cid:173)
`
`September 2002 to celebrate my father's 73rdbirthday on September 19, 2002.
`
`After the party my father demonstrated and described his latest invention. It was
`
`an improvement for a conventional sewing machine that would allow sewers,
`
`particularly quilters, to move fabric around freely in any direction and at any
`
`speed under the sewing machine needle and yet obtain uniform stitches. He
`
`showed us a working model of a device incorporating the electronic and optical
`
`design that he intended to use for controlling the stitch rate of a sewing machine.
`
`It was a small rectangular plastic box with a small window in its upper surface
`
`and a separate circuit board with some electronics and a relay. He explained
`
`that the reddish light emerging from the window was from an especially modified
`
`optical mouse he used to detect fabric movement.
`
`Several of us at the party took turns sliding fabric across the upper surface of the
`
`box. When the fabric was moved, the relay clicked on and off at a rate that was
`
`related to the speed of motion of the fabric. The relay appeared to actuate
`
`smoothly in proportion to the speed of fabric motion regardless of the direction of
`
`Handi Quilter and Tacony v. Bernina
`IPR2013-00364
`Bernina Exhibit 2013-3
`
`
`
`fabric movement, including in straight lines, arcs, and circles. The relay buzzed
`
`when the fabric was moved fast and clicked slowly when the fabric was moved
`
`slowly. My father explained that the circuitry of the model included a preset
`
`threshold for recognizing a fixed increment of fabric motion, so that the relay
`
`would actuate once for each such increment of fabric movement . He explained
`
`that his intention was to cause the sewing machine to make a stitch with each
`
`actuation of the relay.
`
`I recall that my father and I discussed possible modes of operation of his sewing
`
`machine. My first reaction was that he would need to convert the signal driving
`
`the relay to a rate signal that he could use to servo the sewing machine motor's
`
`speed. He said he had considered building a rate based machine, but initially he
`
`intended to demonstrate his invention with a sewing machine that caused
`
`stitches to be executed, one-by-one, with each preset increment of fabric
`
`movement, i.e. each relay contact closure. He said he thought that the stitch(cid:173)
`
`per-threshold mode might sew more accurately, but that in any case, it would be
`
`the easiest to implement in the sewing machine he intended to adapt for his initial
`
`demonstration.
`
`Steve Koerner
`
`Date
`
`Handi Quilter and Tacony v. Bernina
`IPR2013-00364
`Bernina Exhibit 2013-3
`
`
`
`Mike Koerner
`4023 Exulant Drive
`Rancho Palos verdes, Ca 90275
`
`To whom it may concern,
`
`April30, 2009
`
`This letter is to confirm that in mid-September of 2002 I attended a family party
`
`celebrating my father's 73rd birthday on September 19. Dated digital
`
`photographs I took indicate that the party took place on the weekend of
`
`September 21/22, of 2002.
`
`At the party my father described his latest invention, a free motion sewing
`
`machine that would permit quitters to accomplish manually guided sewing in any
`
`direction and at any speed while maintaining constant stitch length. He
`
`demonstrated and described a model of the control portion of his free motion
`
`machine. He said the model was intended to test the circuitry and optical
`
`equipment that would eventually be used in a prototype free motion sewing
`
`machine that he intended to build. The model he demonstrated consisted of a
`
`small plastic box housing an optical mouse and a separate, but connected, circuit
`
`board with a relay. The optical mouse was arranged to "look up" through the
`
`box's upper surface. When we moved fabric across the upper surface of the box,
`
`the relay actuated at approximately the rate of fabric movement. It did so
`
`regardless of the direction of fabric movement. It clicked fast when the fabric
`
`was moved fast and it clicked slowly when the fabric was moved slowly. My
`
`father explained that he intended to use the contacts of the relay to control the
`
`motor of a sewing machine, thus controlling the rate of stitching.
`
`Sincerely yours,
`
`Mike Koerner
`
`Handi Quilter and Tacony v. Bernina
`IPR2013-00364
`Bernina Exhibit 2013-4
`
`
`
`§UE~
`
`Call~ and Start Packing!
`Office: 541-766-0262
`Fax: 541-738-7771
`Cell 541-908-4555
`
`Sue Long
`Top Selling Agent
`
`sue long@ kw.com
`www.suelong-realtor.com
`
`--?&~-
`KELLER WILLIAMS®
`
`R
`
`Y
`T
`L
`A
`E
`Mid-Willamette
`815 NW 9th St. Suite L-195, Corvallis, OR 97330
`@ An Independent Member Broker
`
`Handi Quilter and Tacony v. Bernina
`IPR2013-00364
`Bernina Exhibit 2013-5
`
`
`
`Handi Quilter and Tacony v. Bernina
`IPR2013-00364
`Bernina Exhibit 2013-6