Signal processing and transmission method and system of electronic equipment
The invention provides a signal processing and transmission method and system for electronic equipment, and the method comprises the steps: collecting a video signal, and carrying out the compression processing of the video signal; the link of compression processing comprises DCT (Discrete Cosine Tr...
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creator | LIN HONGJIA |
description | The invention provides a signal processing and transmission method and system for electronic equipment, and the method comprises the steps: collecting a video signal, and carrying out the compression processing of the video signal; the link of compression processing comprises DCT (Discrete Cosine Transform); the method comprises the following steps: acquiring a DC coefficient of each transformation block in a currently compressed video frame in a DCT (Discrete Cosine Transform) process, forming a DC coefficient matrix by the DC coefficient corresponding to each transformation block, generating a first matrix and a second matrix according to a first preset key, and reversely adjusting the first matrix according to the second matrix to generate a third matrix; and encrypting the DC coefficient matrix according to the third matrix to obtain an encrypted sequence. The random matrix is generated to perform random encryption on the DC coefficient matrix of each frame so as to obtain the encryption sequence and perf |
format | Patent |
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The random matrix is generated to perform random encryption on the DC coefficient matrix of each frame so as to obtain the encryption sequence and perf</description><language>chi ; eng</language><subject>ELECTRIC COMMUNICATION TECHNIQUE ; ELECTRICITY ; PICTORIAL COMMUNICATION, e.g. TELEVISION ; TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHICCOMMUNICATION</subject><creationdate>2022</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=20220708&DB=EPODOC&CC=CN&NR=114727106A$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,780,885,25564,76547</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20220708&DB=EPODOC&CC=CN&NR=114727106A$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>LIN HONGJIA</creatorcontrib><title>Signal processing and transmission method and system of electronic equipment</title><description>The invention provides a signal processing and transmission method and system for electronic equipment, and the method comprises the steps: collecting a video signal, and carrying out the compression processing of the video signal; the link of compression processing comprises DCT (Discrete Cosine Transform); the method comprises the following steps: acquiring a DC coefficient of each transformation block in a currently compressed video frame in a DCT (Discrete Cosine Transform) process, forming a DC coefficient matrix by the DC coefficient corresponding to each transformation block, generating a first matrix and a second matrix according to a first preset key, and reversely adjusting the first matrix according to the second matrix to generate a third matrix; and encrypting the DC coefficient matrix according to the third matrix to obtain an encrypted sequence. The random matrix is generated to perform random encryption on the DC coefficient matrix of each frame so as to obtain the encryption sequence and perf</description><subject>ELECTRIC COMMUNICATION TECHNIQUE</subject><subject>ELECTRICITY</subject><subject>PICTORIAL COMMUNICATION, e.g. TELEVISION</subject><subject>TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHICCOMMUNICATION</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>2022</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNrjZPAJzkzPS8xRKCjKT04tLs7MS1dIzEtRKClKzCvOzQQK5Ocp5KaWZOSngMWLK4tLUnMV8tMUUnNSk0uK8vMykxVSC0szC3JT80p4GFjTEnOKU3mhNDeDoptriLOHbmpBfnxqcUFicmpeakm8s5-hoYm5kbmhgZmjMTFqAOuLNnM</recordid><startdate>20220708</startdate><enddate>20220708</enddate><creator>LIN HONGJIA</creator><scope>EVB</scope></search><sort><creationdate>20220708</creationdate><title>Signal processing and transmission method and system of electronic equipment</title><author>LIN HONGJIA</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_CN114727106A3</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>chi ; eng</language><creationdate>2022</creationdate><topic>ELECTRIC COMMUNICATION TECHNIQUE</topic><topic>ELECTRICITY</topic><topic>PICTORIAL COMMUNICATION, e.g. TELEVISION</topic><topic>TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHICCOMMUNICATION</topic><toplevel>online_resources</toplevel><creatorcontrib>LIN HONGJIA</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>LIN HONGJIA</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>Signal processing and transmission method and system of electronic equipment</title><date>2022-07-08</date><risdate>2022</risdate><abstract>The invention provides a signal processing and transmission method and system for electronic equipment, and the method comprises the steps: collecting a video signal, and carrying out the compression processing of the video signal; the link of compression processing comprises DCT (Discrete Cosine Transform); the method comprises the following steps: acquiring a DC coefficient of each transformation block in a currently compressed video frame in a DCT (Discrete Cosine Transform) process, forming a DC coefficient matrix by the DC coefficient corresponding to each transformation block, generating a first matrix and a second matrix according to a first preset key, and reversely adjusting the first matrix according to the second matrix to generate a third matrix; and encrypting the DC coefficient matrix according to the third matrix to obtain an encrypted sequence. The random matrix is generated to perform random encryption on the DC coefficient matrix of each frame so as to obtain the encryption sequence and perf</abstract><oa>free_for_read</oa></addata></record> |
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language | chi ; eng |
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subjects | ELECTRIC COMMUNICATION TECHNIQUE ELECTRICITY PICTORIAL COMMUNICATION, e.g. TELEVISION TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHICCOMMUNICATION |
title | Signal processing and transmission method and system of electronic equipment |
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