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`Case 6:21-cv-00520-ADA Document 32-21 Filed 02/23/22 Page 1 of 202
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`EXHIBIT 19-3
`EXHIBIT 19-3
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`

`

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`Case 6:20-cv-00870-ADA Document 34-3 Filed 08/23/21 Page 1 of 201
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`
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`EXHIBIT 2
`EXHIBIT 2
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`

`

`
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`Case 6:20-cv-00870-ADA Document 34-3 Filed 08/23/21 Page 2 of 201Case 6:21-cv-00520-ADA Document 32-21 Filed 02/23/22 Page 3 of 202
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`
`
`11111111111111111111111111111I121111111)11111111111111111111111111
`
`(12) United States Patent
`Sorrells et al.
`
`(to) Patent No.:
`(45) Date of Patent:
`
`US 6,266,518 B1
`*Jul. 24, 2001
`
`(54) METHOD AND SYSTEM FOR
`DOWN-CONVERTING ELECTROMAGNETIC
`SIGNALS BY SAMPLING AND
`INTEGRATING OVER APERTURES
`
`FOREIGN PATENT DOCUMENTS
`
`42 37 692 Cl
`0 035 166 Al
`0 099 265 Al
`
`3/1994 (DE)
`9/1981 (EP)
`1/1984 (EP)
`
`HO4B/1/26
`HO4B/1/26
`HO3D/3/04
`
`(75)
`
`Inventors: David F. Sorrells; Michael J.
`Hultman, both of Jacksonville; Robert
`W. Cook, Switzerland; Richard C.
`Looke; Charley D. Moses, Jr., both of
`Jacksonville, all of FL (US)
`
`(73) Assignee: ParkerVision, Inc., Jacksonville, FL
`(US)
`
`( * ) Notice:
`
`Subject to any disclaimer, the term of this
`patent is extended or adjusted under 35
`U.S.C. 154(b) by 0 days.
`
`This patent is subject to a terminal dis-
`claimer.
`
`(21) Appl. No.: 09/376,359
`
`(22) Filed:
`
`Aug. 18, 1999
`
`Related U.S. Application Data
`
`(63) Continuation of application No. 09/176,022, filed on Oct.
`21, 1998.
`
` H01Q 11/12
`(51) Int. C1.7
` 455/118; 455/113
`(52) U.S. Cl.
` 455/131, 139,
`(58) Field of Search
`455/142, 182.1, 202, 205, 713, 317, 318,
`323, 118, 113, 324; 329/345, 347; 327/9,
`91; 702/66, 70
`
`(56)
`
`References Cited
`
`U.S. PATENT DOCUMENTS
`
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`OTHER PUBLICATIONS
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`Translation of Specification and Claims of FR Patent No.
`2245130, 3 pages.
`Aghvami, H. et al., "Land Mobile Satellites Using the
`Highly Elliptic Orbits—The UK T—SAT Mobile Payload,"
`4th International Conf. On Satellite Systems for Mobile
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`
`(List continued on next page.)
`
`Primary Examiner—Vivian Chang
`Assistant Examiner—Sam Bhattacharya
`(74) Attorney, Agent, or Firm—Sterne, Kessler, Goldstein
`& Fox PLLC
`
`(57)
`
`ABSTRACT
`
`Methods, systems, and apparatuses for down-converting an
`electromagnetic (EM) signal by aliasing the EM signal are
`described herein. Briefly stated, such methods, systems, and
`apparatuses operate by receiving an EM signal and an
`aliasing signal having an aliasing rate. The EM signal is
`aliased according to the aliasing signal to down-convert the
`EM signal. The term aliasing, as used herein, refers to both
`down-converting an EM signal by under-sampling the EM
`signal at an aliasing rate, and down-converting an EM signal
`by transferring energy from the EM signal at the aliasing
`rate. In an embodiment, the EM signal is down-converted to
`an intermediate frequency (IF) signal. In another
`embodiment, the EM signal is down-converted to a demodu-
`lated baseband information signal. In another embodiment,
`the EM signal is a frequency modulated (FM) signal, which
`is down-converted to a non-FM signal, such as a phase
`modulated (PM) signal or an amplitude modulated (AM)
`signal.
`
`(List continued on next page.)
`
`99 Claims, 126 Drawing Sheets
`
`1201
`
`RECEIVING AN EM SIGNAL
`
`RECEIVING AN ALIASING SIGNAL
`HAVING AN ALIASING RATE
`
`1202
`
`1204
`
`DOWN-CONVERTING THE EM SIGNAL -/-12°8
`
`GENERIC DOWN-CONVERTING
`FLOWCHART
`
`

`

`
`
`Case 6:20-cv-00870-ADA Document 34-3 Filed 08/23/21 Page 3 of 201Case 6:21-cv-00520-ADA Document 32-21 Filed 02/23/22 Page 4 of 202
`
`US 6,266,518 B1
`Page 2
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`
`

`

`
`
`Case 6:20-cv-00870-ADA Document 34-3 Filed 08/23/21 Page 4 of 201Case 6:21-cv-00520-ADA Document 32-21 Filed 02/23/22 Page 5 of 202
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`US 6,266,518 B1
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`
`FOREIGN PATENT DOCUMENTS
`
`0 193 899 B1
`0 380 351 A2
`0 380 351 A3
`0 411 840 A2
`0 423 718 A2
`0 411 840 A3
`0 486 095 Al
`0 423 718 A3
`0 512 748 A2
`0 548 542 Al
`0 512 748 A3
`0 560 228 Al
`0 632 288 A2
`0 411 840 B1
`0 696 854 Al
`0 632 288 A3
`0 486 095 B1
`0 782 275 A2
`0 785 635 Al
`0 795 978 A2
`0 837 565 Al
`0 862 274 Al
`0 874 499 A2
`0 512 748 B1
`2 245 130
`2 743 231-Al
`2 161 344
`2 215 945
`2-39632
`2-131629
`2-276351
`WO 80/01633
`Al
`WO 94/05087
`Al
`WO 96/02977
`Al
`WO 96/08078
`Al
`WO 96/39750
`Al
`
`6/1990 (EP)
`8/1990 (EP)
`2/1991 (EP)
`2/1991 (EP)
`4/1991 (EP)
`7/1991 (EP)
`5/1992 (EP)
`8/1992 (EP)
`11/1992 (EP)
`6/1993 (EP)
`7/1993 (EP)
`9/1993 (EP)
`1/1995 (EP)
`10/1995 (EP)
`2/1996 (EP)
`7/1996 (EP)
`2/1997 (EP)
`7/1997 (EP)
`7/1997 (EP)
`9/1997 (EP)
`4/1998 (EP)
`9/1998 (EP)
`10/1998 (EP)
`11/1998 (EP)
`4/1975 (FR)
`7/1997 (FR)
`1/1986 (GB)
`9/1989 (GB)
`2/1990 (JP)
`5/1990 (JP)
`11/1990 (JP)
`
`8/1980 (WO)
`
`3/1994 (WO)
`
`2/1996 (WO)
`
`3/1996 (WO)
`
`12/1996 (WO)
`
`G01S/7/52
`H03H/17/04
`H03H/17/04
`G01 R/33/36
`H04N/7/01
`G01 R/33/36
`H03D/3/00
`H04N/7/01
`H04N/9/64
`H03B/19/14
`H04N/9/64
`H03D/7/12
`G01 S/13/75
`G01 R/33/36
`H04B/1/26
`G01 S/13/75
`H03D/3/00
`H04B/7/02
`H04B/1/713
`H04L/5/06
`H04B/1/69
`H03M/1/06
`H04L/25/06
`H04N/9/64
`H03K/5/13
`H04B/7/12
`H04B/7/12
`H04L/27/00
`H04B/7/12
`H04B/7/12
`H04L/27/22
`
`HO4J/1/08
`
`H03M/1/00
`
`H04B/1/26
`
`H03D/3/00
`
`HO4B/1/26
`
`

`

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`
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`1/1998 (WO)
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`6/1998 (WO)
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