Radio frequency digital filter group delay mismatch reduction

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United States of America Patent

PATENT NO 9020065
APP PUB NO 20130182792A1
SERIAL NO

13351008

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Abstract

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A radio frequency (RF) front end having group delay mismatch reduction is provided. One embodiment provides a first feed forward path and a second feed forward path. The second feed forward path is electrically in parallel with the first feed forward. The second feed forward path has a first signal path and a second signal path. The first and second signal paths are arranged to be electrically in parallel. The first signal path has a digital filter. The second signal path has a tunable analog filter. The tunable analog filter operates to reduce a delay associated with the second feed forward path as compared with a delay associated with the first feed forward path.

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Patent OwnerAddress
VIVO MOBILE COMMUNICATION CO LTDNO 1 VIVO ROAD CHANG'AN DONGGUAN GUANGDONG 523863 523863

International Classification(s)

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  • 2012 Application Filing Year
  • H04L Class
  • 16732 Applications Filed
  • 14636 Patents Issued To-Date
  • 87.48 % Issued To-Date
Click to zoom InYear of Issuance% of Matters IssuedCumulative IssuancesYearly Issuances20122013201420152016201720182019202020212022202320240255075100

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Inventor Name Address # of filed Patents Total Citations
Wyville, Mark William Ottawa, CA 13 155

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  • 16 Citation Count
  • H04L Class
  • 56.28 % this patent is cited more than
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Citation count rangeNumber of patents cited in rangeNumber of patents cited in various citation count ranges310204273740822814491673625177401 - 1011 - 2021 - 3031 - 4041 - 5051 - 6061 - 7071 - 8081 - 9091 - 100100 +01002003004005006007008009001000110012001300140015001600170018001900200021002200

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