`lllllllllllllllllllllllllIlllllllllllll |||l|||||l||ll||lll|l|||ll|||
`
`118006116 1551A
`
`[19]
`United States Patent
`6,061,551
`[45]
`Sorrells et 111.
`Date of Patent:
`May 9, 2000
`
`Patent Number:
`
`Ill]
`
`[75]
`.
`
`[54] METHOD AND SYSTEM FOR DOWN-
`CONVERTING ELECTROMAGNETIC
`SIGNALS
`I
`1
`nven ors:
`
`David F anmll‘. Mi haelJ
`.
`. 1
`.';
`e
`Bultman, both oi'Jacksonville; Robert
`W. (Junk, Switzerland; Richard C.
`_
`5111111119; (“Radial 1:.rlrlnses, ,]r., both at
`ac mm“ L’ a
`0
`a.
`['13] Assignee: Parkervisinn, Inc., Jacksonville, Fla.
`
`[2]] App]. No; "9,1175’022
`‘
`_
`Fllcd‘
`01.1.. 21" 1998
`
`..... HfllQ 11112
`
`4551118'4531'313;4551I323;
`4.3.1524
`4551131‘ 139
`[58] Field of Search
`,
`.......................I"
`.
`,
`.
`__
`4551142, 162.1, 202, 20:, 313, 317, 318,
`323,
`1 [8, 113, 324; 3291345, 347; 32719,
`91; 70966! 70
`
`[221
`[51]
`[52]
`
`
`-of
`1]
`
`[
`
`
`,nees L ted
`Ref
`i
`ere
`U.S. PATENT DOCUMENTS
`
`Re. 35,494
`Re. 35,829
`21151513
`2,241,078
`2,210,335
`2,283,575
`2,353,152
`2,4[113511
`2,451,431
`2145211169
`1453:1131
`214723)?
`$2333:
`’
`$32???
`3'fl23’309
`3:069:67”
`3,104,393
`3,114,106
`3,113,111
`
`................................. 32111554
`41199? Nicollini
`
`611998 Sanderford,,|r.
`3751211!
`...................................... 2511,18
`11111935 Gardner
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`
`.. 179115
`111942 Skillman
`
`511942 Roberts .
`25016
`9119-44 Earp ..........
`. 11911715
`
`.............................. 179115
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`labia et al.
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`133mm. ........................................ 25018
`
`~ 2501’17
`211939 (11111111911?a El 31-
`-‘ 25'3“?
`25194? Lfmmmngfl
`
`51094) ”Edema” """"""
`“ ”8"!“
`
`$1323 Eggihgnwmd et :11.
`“3:32;?
`""""""""
`"
`'
`_
`‘
`‘
`
`Itlr‘rjilgla‘Ie‘e-tual
`3:211:73
`2:32.:
`
`‘
`' 2'50,”
`211962 Pom,“
`[2,1962 Sme“Eyelal
`343120131
`
`9,1963 Vogeiman _____
`34312110
`
`1211963 MeManus _
`“ 325156
`................................ 332122
`111954 King at al.
`(List continued on next page.)
`
`01111311qu
`ECEIVEH
`
`FOREIGN PATENT DOCUMEN'IS
`[11135 156 A1
`211981
`European Pat. Off.
`.......... H0415 1126
`i] 193 899 Ht
`911986
`European Pat. DIJ'.
`.......... Gills 7152
`[13803511312
`811991!
`European [’31. 011'.
`....... HU3H 171114
`_
`‘
`(L151 continued 0“ ““1 Page)
`OTHER PUBLICATIONS
`Akers, N.P. el al., “RF sampling gates: a brief review,” IEE
`Proceedings—A, vol. 133, Part A, No. 1, Jan. 1986, pp.
`{3—49-
`1
`_
`_
`_
`_
`_
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`_
`_
`.
`ltakura, L, “bfl-CCIS‘O‘I‘ the sampling pulse Wtdlh on Ii‘lt:
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`11513 Proceedings—Circuits, Devices and Systems, Aug.
`1994 vol. 141 No. 4 pp. 328—336.
`’
`’
`‘
`{List continued on next page.)
`Prflttarjv Examiner—Doris H. To
`Assistant Examiner—8am Bhattacharya
`Attorney; Agent, or Finn—Sterne, Kessler, Goldstein & Fox
`R[__[_,{j_
`
`[57]
`
`ABSTRACT
`_
`‘
`Methods, systems, and apparaluses tor downwanvemng an
`elcclromagnelic (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
`alfiasgr] according m |th aliasing signal 10 down~convcn the
`EM slgnuL [he [crm allaslng’ as used hgrcln’ reign; to bolh
`down—converting an EM signal by under—sampling the EM
`Signal at an aliasmg rate, and down~convert1ng 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 lo a demodu-
`lated hasehand information signal. In another embodiment,
`the EM signal is a frequency modulated (I’M) signal, which
`is down—convertedto a non—FM signal, such as a phase
`modulated (PM) Signal or an amplitude modulated (AM)
`Signal-
`
`204 Claims, 126 Drawing Sheets
`
`
`
`
`
`
`Intel v. ParkerVision
`
`
`1F
`519m.
`E ilmn
`
`1110
`
`
`|PR2020-01265
`
`Intel 1025
`
`ParkerVision Ex. 2007
`
`Intel Corp. v. Pal‘kerVision, Inc.
`Il’R No. 2020—01265
`
`
`
`Intel v. ParkerVision
`IPR2020-01265
`Intel 1025
`
`

`

`6,061,551
`
`Page 2
`
`
`
`.
`
`US. PATENT DOCUMENTS
`
`
`
`
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`
`Parkchisiou Ex. 2007
`
`1.111131 Corp. v. Parkchisiou. 1111?.
`[PR No. 2020—01265
`
`

`

`6,061,551
`
`Page 3
`
`.
`
`
`
`5,091,921
`375388
`2.31.992 Nfinami
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