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US Patent 9288098 Methods and apparatus for envelope tracking system

Patent 9288098 was granted and assigned to MediaTek on March, 2016 by the United States Patent and Trademark Office.

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Is a
Patent
Patent
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Patent attributes

Current Assignee
MediaTek
MediaTek
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Patent Jurisdiction
United States Patent and Trademark Office
United States Patent and Trademark Office
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Patent Number
92880980
Patent Inventor Names
Hao-Ping Hong0
Sheng-Hong Yan0
Date of Patent
March 15, 2016
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Patent Application Number
146123050
Date Filed
February 3, 2015
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Patent Citations Received
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US Patent 12126305 Radio frequency (RF) equalizer in an envelope tracking (ET) circuit
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US Patent 11996806 Multi-level envelope tracking systems with separate DC and AC paths
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US Patent 12063018 Envelope tracking integrated circuit operable with multiple types of power amplifiers
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US Patent 12068720 Barely Doherty dual envelope tracking (BD2E) circuit
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US Patent 12081173 Complementary envelope detector
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US Patent 11658615 Multi-level envelope tracking with analog interface
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US Patent 11671064 Equalizer for envelope power supply circuitry
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...
Patent Primary Examiner
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Kevin Kim
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Patent abstract

A communication unit has an envelope tracking system operably coupled to a power amplifier, PA, module. The envelope tracking system has at least one slew rate module arranged to re-distribute a slew rate across a number of input samples according to a maximum slew rate of the number of input samples; and a supply modulator arranged to variably control a supply voltage for the PA module in response to an output of the at least one slew rate module.

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