Method and apparatus for generating constant envelope modulation using a quadrature transmitter

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United States of America Patent

PATENT NO 7864882
SERIAL NO

11618772

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Abstract

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A multi-mode communication device (100) uses a quadrature transmitter (102) for transmitting both amplitude and constant envelope angle-modulated signals. For angle modulation, a separate feedback path is used from that used for amplitude modulated signal transmission. An FM receiver (136) is used to produce error signals (214, 216) used in correcting the I and Q quadrature signals (206, 208).

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Patent Owner(s)

Patent OwnerAddress
GOOGLE TECHNOLOGY HOLDINGS LLC1600 AMPHITHEATRE PARKWAY MOUNTAIN VIEW CA 94043

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Anderson, George C Sunrise, US 19 426
Korneluk, Jose E Lake Worth, US 53 2012
Raven, Gregory S Plantation, US 4 29

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  • 1 Citation Count
  • H04L Class
  • 1.12 % this patent is cited more than
  • 14 Age
Citation count rangeNumber of patents cited in rangeNumber of patents cited in various citation count ranges1952929120313695755350343917601 - 1011 - 2021 - 3031 - 4041 - 5051 - 6061 - 7071 - 8081 - 9091 - 100100 +0255075100125150175200225250275300325350375400425450475500525550575

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