Telecommunications – Transmitter – Plural separate transmitters or channels
Reexamination Certificate
2008-03-11
2008-03-11
Vo, Nguyen T. (Department: 2618)
Telecommunications
Transmitter
Plural separate transmitters or channels
C455S127300
Reexamination Certificate
active
07343138
ABSTRACT:
The invention relates to for processing an electromagnetic input signal, wherein the signal is passed through an input to be modified across a plurality of modifying segments using a characteristic of the signal, and wherein the plurality of segments have a plurality of states controlled by a control signal, by determining a reference impedance for the input for one or more states of the plurality of segments; and adaptively adjusting impedance of the input toward the reference impedance. This may be accomplished for example, by using a matching circuit comprising one or more selected from the group consisting of a digital signal processor, a microprocessor, a logic circuit, an integrated circuit, a phase shifter, a resistor, a variable inductor, and a variable capacitor. The matching circuit determines shifts in impedance of the input after a change in state of the segments; and adaptively adjusts the impedance based upon the shift.
REFERENCES:
patent: 3978422 (1976-08-01), Rheinfelder
patent: 4534040 (1985-08-01), Thapar
patent: 4580111 (1986-04-01), Swanson
patent: 4586000 (1986-04-01), Wagner
patent: 4646359 (1987-02-01), Furrer
patent: 4804931 (1989-02-01), Hulick
patent: 4947455 (1990-08-01), Swanson
patent: 4952890 (1990-08-01), Swanson
patent: 5017888 (1991-05-01), Meinzer
patent: 5268658 (1993-12-01), Edwards
patent: 5278997 (1994-01-01), Martin
patent: 5311143 (1994-05-01), Soliday
patent: 5367272 (1994-11-01), Hulick
patent: 5392007 (1995-02-01), Cripe
patent: 5410280 (1995-04-01), Linguet et al.
patent: 5450044 (1995-09-01), Hulick
patent: 5469127 (1995-11-01), Hulick et al.
patent: 5621351 (1997-04-01), Puri et al.
patent: 5642002 (1997-06-01), Mekanik et al.
patent: 5669068 (1997-09-01), Kielmeyer et al.
patent: 5673001 (1997-09-01), Kim et al.
patent: 5673287 (1997-09-01), Colvis et al.
patent: 5774017 (1998-06-01), Adar
patent: 5818298 (1998-10-01), Dent et al.
patent: 5867060 (1999-02-01), Burkett, Jr. et al.
patent: 5867071 (1999-02-01), Chethik
patent: 5880633 (1999-03-01), Leizerovich et al.
patent: 5886573 (1999-03-01), Kolanek
patent: 5892431 (1999-04-01), Osterman
patent: 5901345 (1999-05-01), Ikeda et al.
patent: 5930128 (1999-07-01), Dent
patent: 5939951 (1999-08-01), Bateman et al.
patent: 5942946 (1999-08-01), Su et al.
patent: 5952870 (1999-09-01), Urban
patent: 5952895 (1999-09-01), McCune, Jr. et al.
patent: 5999046 (1999-12-01), Kotzamanis
patent: 6020787 (2000-02-01), Kim et al.
patent: 6041082 (2000-03-01), Takeda et al.
patent: 6043707 (2000-03-01), Budnik
patent: 6043712 (2000-03-01), Leizerovich et al.
patent: 6075413 (2000-06-01), Katakura
patent: 6078628 (2000-06-01), Griffith et al.
patent: 6094101 (2000-07-01), Sander et al.
patent: 6097252 (2000-08-01), Sigmon et al.
patent: 6101224 (2000-08-01), Lindoff et al.
patent: 6112071 (2000-08-01), McCune, Jr.
patent: 6130910 (2000-10-01), Anderson et al.
patent: 6133788 (2000-10-01), Dent
patent: 6140875 (2000-10-01), Van Den Homberg et al.
patent: 6140882 (2000-10-01), Sander
patent: 6147553 (2000-11-01), Kolanek
patent: 6157681 (2000-12-01), Daniel et al.
patent: 6191653 (2001-02-01), Camp, Jr. et al.
patent: 6198347 (2001-03-01), Sander et al.
patent: 6201452 (2001-03-01), Dent et al.
patent: 6215355 (2001-04-01), Meck et al.
patent: 6215359 (2001-04-01), Peckham et al.
patent: 6219394 (2001-04-01), Sander
patent: 6236284 (2001-05-01), Duello et al.
patent: 6242975 (2001-06-01), Eidson et al.
patent: 6246286 (2001-06-01), Persson
patent: 6255906 (2001-07-01), Eidson et al.
patent: 6259901 (2001-07-01), Shinomiya et al.
patent: 6269135 (2001-07-01), Sander
patent: 6285251 (2001-09-01), Dent et al.
patent: 6288916 (2001-09-01), Liu et al.
patent: 6294957 (2001-09-01), Luu
patent: 6297694 (2001-10-01), Yamamoto
patent: 6298244 (2001-10-01), Boesch et al.
patent: 6311046 (2001-10-01), Dent
patent: 6317608 (2001-11-01), Glöcker
patent: 6321072 (2001-11-01), Cipriani et al.
patent: 6323731 (2001-11-01), McCune, Jr.
patent: 6349216 (2002-02-01), Alberth et al.
patent: 6356155 (2002-03-01), Judkins
patent: 6366177 (2002-04-01), McCune et al.
patent: 6369657 (2002-04-01), Dening et al.
patent: 6377784 (2002-04-01), McCune
patent: 6380802 (2002-04-01), Pehike et al.
patent: 6404823 (2002-06-01), Grange et al.
patent: 6411655 (2002-06-01), Holden et al.
patent: 6426677 (2002-07-01), Prentice
patent: 6426678 (2002-07-01), Ko
patent: 6430402 (2002-08-01), Agahi-Kesheh
patent: 6445247 (2002-09-01), Walker
patent: 6449465 (2002-09-01), Gailus et al.
patent: 6522201 (2003-02-01), Hsiao et al.
patent: 6556814 (2003-04-01), Klomsdorf et al.
patent: 6636112 (2003-10-01), McCune
patent: 6658238 (2003-12-01), Ursenbach et al.
patent: 6680652 (2004-01-01), Hoheisel et al.
patent: 6738432 (2004-05-01), Pehlke et al.
patent: 6765536 (2004-07-01), Phillips et al.
patent: 6791417 (2004-09-01), Pengelly et al.
patent: 6799020 (2004-09-01), Heidmann et al.
patent: 6816008 (2004-11-01), Kontson
patent: 6990164 (2006-01-01), Bushman et al.
patent: 6995842 (2006-02-01), Opsal
patent: 7030691 (2006-04-01), Kim
patent: 7079815 (2006-07-01), Pozgay et al.
patent: 2003/0001668 (2003-01-01), Mruz et al.
patent: 2005/0030104 (2005-02-01), Chen et al.
patent: 28 07 813 (1979-06-01), None
patent: WO 01/10013 (2001-02-01), None
Hulick, “The Digital Linear Amplifier”, Schwenksville, Pennsylvania.
Kozyrey, “Single-Ended Switching-Mode Tuned Power Amplifier with Filtering Circuit”, Poluprovodnikovye pribory v tekhnike svyazi, 1971, pp. 152-166, vol. 6.
TimeStar™, “Multi-Mode Polar Modulator” 2002, Tropian Headquarters, USA.
Sundstrom, “Digital RF Power Amplifier Linearisers”, 1995, Sweden.
Kenington, “Linearised RF Amplifier and Transmitter Techniques”, Microwave Engineering Europe, Nov. 1998.
Mann, et al., “Increasing Talk-Time with Efficient Linear PAs”, Presented at IEE Colloquim on Tetra Market and Technology Developments, Feb. 2000, London.
Mann, et al., “Increasing the Talk-Time of Mobile Radios with Efficient Linear Transmitter Architectures”, Electronics & Communication Engineering Journal, Apr. 2001, pp. 65-76, vol. 13, No. 2.
Heimbach, “Digital Multimode Technology Redefines the Nature of RF Transmission”, Applied Microwave & Wireless, Aug. 2001.
Swanson, “Digital AM Transmitters”, IEEE Transactions on Broadcasting, Jun. 1989, pp. 131-133, vol. 35, No. 2.
Tropian-Products Main, www.tropian.com/products/, Copyright 2000-2001, Aug. 14, 2002.
“Tropian and Agilent Technologies announce collaboration on multi-band, multi-mode 2.5G transmitter solutions”, Feb. 18, 2002, Cannes, France.
“Tropian Awarded 8thU.S. Patent for Wireless Technology: Innovative RF Power Processing Circuit Architecture Achieves Speed and Accuracy in Polar Modulation,” Aug. 6, 2001, Cupertino, California.
Dialog Web Command Mode, p. 1 of 1, Sep. 17, 2002, Record 03929207, Polar Modulators for 1 and 2 GHz Power Amplifier Correction, Nisbet, J.
Dialog Web Command Mode, p. 1 of 1, Sep. 17, 2002, Record 0326082, A new Class-AB Design, De Jager, et al., Electronics World 105, Dec. 1999, p. 982-7.
Dialog Web Command Mode, p. 1 of 1, Sep. 17, 2002, Record 2371235, Increasing the talk-time of mobile radios with efficient linear transmitter architectures, Mann et al., Electronics & Communication Engineering Journal, v. 13, No. 2, Apr. 2001 (p. 65-76).
Dialog Web Command Mode, p. 1 of 3, Sep. 17, 2002, Record 15595216, The big climate amplifier ocean circulation-sea-ice-storminess-dustiness-albedo, Broecker, Geophysical Monograph, 2001, 126, 53-56, etc.
Dialog Web Command Mode, p. 1 of 9, Sep. 19, 2002, Record 10872787, Out-of-band emissions of digital transmissions using Kahn EER technique, Rudolph, IEEE Transactions on Microwave Theory & Techniques, 2002, V 50, N 8, August, p. 1979-1983, etc.
Dialog Web Command Mode, p. 1 of 20, Sep. 17, 2002. Record 01239474, GSM players Eye Edge Despite Transmit Woes, Keenan, Electronic Engineering Times, 2002, n 1211, p. 6.
Bengtson David
Douglas Dale Scott
M/A-COM, Inc.
Vo Nguyen T.
LandOfFree
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