Case 6:21-cv-00520-ADA Document 32-3 Filed 02/23/22 Page 1 of 399
`Case 6:21-cv-00520-ADA Document 32-3 Filed 02/23/22 Page 1 of 399
`
`EXHIBIT 4
`EXHIBIT 4
`
`
`
`

`

`(12) United States Patent
`Sorrells et al.
`
`USOO711044.4B1
`US 7,110,444 B1
`Sep. 19, 2006
`
`(10) Patent No.:
`(45) Date of Patent:
`
`(54) WIRELESS LOCAL AREA NETWORK
`(WLAN) USING UNIVERSAL FREQUENCY
`TRANSLATION TECHNOLOGY INCLUDING
`MULT-PHASE EMBODIMIENTS AND
`CIRCUIT IMPLEMENTATIONS
`
`(75) Inventors: David F. Sorrells, Middleburg, FL
`(US); Michael J. Bultman,
`Jacksonville, FL (US); Robert W.
`Cook, Switzerland, FL (US); Richard
`C. Looke, Jacksonville, FL (US);
`Charley D. Moses, Jr., Jacksonville,
`FL (US); Gregory S. Rawlins, Lake
`Mary, FL (US); Michael W. Rawlins,
`Lake Mary, FL (US)
`(73) Assignee: ParkerVision, Inc., Jacksonville, FL
`(US)
`Subject to any disclaimer, the term of this
`patent is extended or adjusted under 35
`U.S.C. 154(b) by 1111 days.
`
`(*) Notice:
`
`(21) Appl. No.: 09/632,856
`
`(22) Filed:
`
`Aug. 4, 2000
`Related U.S. Application Data
`(63) Continuation-in-part of application No. 09/525,615, filed on
`Mar. 14, 2000, and a continuation-in-part of application No.
`09/526,041, filed on Mar. 14, 2000.
`(60) Provisional application No. 60/147,129, filed on Aug. 4.
`1999.
`
`(51) Int. Cl.
`H04L 5/16
`
`(2006.01)
`
`(52) U.S. Cl. ........................ 375/222; 375/328; 455/137
`
`(58) Field of Classification Search ................. 375/222,
`375/328,324,349; 455/131, 137, 150.1,
`455/189.1, 190.1, 313, 323,326
`See application file for complete search history.
`
`(56)
`
`References Cited
`
`U.S. PATENT DOCUMENTS
`
`2,057,613 A 10/1936 Gardner ......................... 250/8
`2,241,078 A
`5/1941 Vreeland ..................... 179/15
`(Continued)
`FOREIGN PATENT DOCUMENTS
`
`DE
`DE
`
`35 41 031 A1
`5, 1986
`4237 692 C1
`3, 1994
`(Continued)
`OTHER PUBLICATIONS
`English Translation of German Patent Publication No. DE
`19648 915 A1, 10 pp.
`(Continued)
`Primary Examiner Chieh M. Fan
`Assistant Examiner—Kevin Kim
`(74) Attorney, Agent, or Firm Sterne, Kessler, Goldstein
`& Fox PL.L.C.
`ABSTRACT
`(57)
`Frequency translation and applications of the same are
`described herein, including RF modem and wireless local
`area network (WLAN) applications. In embodiments, the
`WLAN invention includes an antenna, an LNA/PA module,
`a receiver, a transmitter, a control signal generator, a
`demodulation/modulation facilitation module, and a MAC
`interface. The WLAN receiver includes at least one univer
`sal frequency translation module that frequency down
`converts a received EM signal. In embodiments, the UFT
`based receiver is configured in a multi-phase embodiment to
`reduce or eliminate re-radiation that is caused by DC offset.
`The WLAN transmitter includes at least one universal
`frequency translation module that frequency up-converts a
`baseband signal in preparation for transmission over the
`wireless LAN. In embodiments, the UFT based transmitter
`is configured in a differential and multi-phase embodiment
`to reduce carrier insertion and spectral growth.
`
`32 Claims, 349 Drawing Sheets
`
`Case 6:21-cv-00520-ADA Document 32-3 Filed 02/23/22 Page 2 of 399
`
`
`
`08
`
`t - w --
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`- - l -- ---
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`

`

`US 7,110.444 B1
`Page 2
`
`U.S. PATENT DOCUMENTS
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`
`
`
`

`

`US 7,110.444 B1
`Page 3
`
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`
`
`
`

`

`US 7,110.444 B1
`Page 4
`
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`375,206
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`455.266
`5,555.453 A
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`5,557,641 A
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`5,563,550 A 10/1996 Toth ........................... 329,347
`5,564,097 A 10, 1996 Swanke
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`RE35,494 E
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`9, 1997
`375,260
`5,668,836 A
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`Case 6:21-cv-00520-ADA Document 32-3 Filed 02/23/22 Page 5 of 399
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`5,771,442 A
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`5,777,771 A
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`
`
`

`

`US 7,110.444 B1
`Page 5
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`
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`EP
`EP
`EP
`EP
`EP
`EP
`EP
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`

`US 7,110.444 B1
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