IMAGE DISTORTION CORRECTION IN A WIRELESS TERMINAL
A circuit in a wireless communications terminal/device and a method is described for reducing an image distortion. By measuring three gain mismatches of I path and Q path of a transceiver, and estimating a value of an IQ mismatch coefficient based on the three gain mismatches; and applying a measure...
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creator | Jiang, Hong Zhang, Zhihang Forrester, Jamil Mark |
description | A circuit in a wireless communications terminal/device and a method is described for reducing an image distortion. By measuring three gain mismatches of I path and Q path of a transceiver, and estimating a value of an IQ mismatch coefficient based on the three gain mismatches; and applying a measurement adjustment to the I path or the Q path based on the value of the IQ mismatch coefficient, the image distortion is reduced. |
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By measuring three gain mismatches of I path and Q path of a transceiver, and estimating a value of an IQ mismatch coefficient based on the three gain mismatches; and applying a measurement adjustment to the I path or the Q path based on the value of the IQ mismatch coefficient, the image distortion is reduced.</description><language>eng</language><subject>AMPLIFIERS ; BASIC ELECTRONIC CIRCUITRY ; CONTROL OF AMPLIFICATION ; ELECTRIC COMMUNICATION TECHNIQUE ; ELECTRICITY ; TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHICCOMMUNICATION</subject><creationdate>2019</creationdate><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20191031&DB=EPODOC&CC=US&NR=2019334743A1$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,780,885,25564,76547</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20191031&DB=EPODOC&CC=US&NR=2019334743A1$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>Jiang, Hong</creatorcontrib><creatorcontrib>Zhang, Zhihang</creatorcontrib><creatorcontrib>Forrester, Jamil Mark</creatorcontrib><title>IMAGE DISTORTION CORRECTION IN A WIRELESS TERMINAL</title><description>A circuit in a wireless communications terminal/device and a method is described for reducing an image distortion. By measuring three gain mismatches of I path and Q path of a transceiver, and estimating a value of an IQ mismatch coefficient based on the three gain mismatches; and applying a measurement adjustment to the I path or the Q path based on the value of the IQ mismatch coefficient, the image distortion is reduced.</description><subject>AMPLIFIERS</subject><subject>BASIC ELECTRONIC CIRCUITRY</subject><subject>CONTROL OF AMPLIFICATION</subject><subject>ELECTRIC COMMUNICATION TECHNIQUE</subject><subject>ELECTRICITY</subject><subject>TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHICCOMMUNICATION</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>2019</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNrjZDDy9HV0d1Vw8QwO8Q8K8fT3U3D2DwpydQYzPf0UHBXCPYNcfVyDgxVCXIN8Pf0cfXgYWNMSc4pTeaE0N4Oym2uIs4duakF-fGpxQWJyal5qSXxosJGBoaWxsYm5ibGjoTFxqgAfpSfh</recordid><startdate>20191031</startdate><enddate>20191031</enddate><creator>Jiang, Hong</creator><creator>Zhang, Zhihang</creator><creator>Forrester, Jamil Mark</creator><scope>EVB</scope></search><sort><creationdate>20191031</creationdate><title>IMAGE DISTORTION CORRECTION IN A WIRELESS TERMINAL</title><author>Jiang, Hong ; Zhang, Zhihang ; Forrester, Jamil Mark</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_US2019334743A13</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng</language><creationdate>2019</creationdate><topic>AMPLIFIERS</topic><topic>BASIC ELECTRONIC CIRCUITRY</topic><topic>CONTROL OF AMPLIFICATION</topic><topic>ELECTRIC COMMUNICATION TECHNIQUE</topic><topic>ELECTRICITY</topic><topic>TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHICCOMMUNICATION</topic><toplevel>online_resources</toplevel><creatorcontrib>Jiang, Hong</creatorcontrib><creatorcontrib>Zhang, Zhihang</creatorcontrib><creatorcontrib>Forrester, Jamil Mark</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>Jiang, Hong</au><au>Zhang, Zhihang</au><au>Forrester, Jamil Mark</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>IMAGE DISTORTION CORRECTION IN A WIRELESS TERMINAL</title><date>2019-10-31</date><risdate>2019</risdate><abstract>A circuit in a wireless communications terminal/device and a method is described for reducing an image distortion. By measuring three gain mismatches of I path and Q path of a transceiver, and estimating a value of an IQ mismatch coefficient based on the three gain mismatches; and applying a measurement adjustment to the I path or the Q path based on the value of the IQ mismatch coefficient, the image distortion is reduced.</abstract><oa>free_for_read</oa></addata></record> |
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subjects | AMPLIFIERS BASIC ELECTRONIC CIRCUITRY CONTROL OF AMPLIFICATION ELECTRIC COMMUNICATION TECHNIQUE ELECTRICITY TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHICCOMMUNICATION |
title | IMAGE DISTORTION CORRECTION IN A WIRELESS TERMINAL |
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