Special frequency sweeping instrument for debugging digital radio
The invention specifically discloses a special frequency sweeping instrument for debugging a digital radio. The special frequency sweeping instrument comprises a liquid crystal display screen, a microcontroller, a touch keyboard, a DDS signal source, a broadband amplifier, a first attenuation networ...
Gespeichert in:
| Hauptverfasser: | , , , , , |
|---|---|
| Format: | Patent |
| Sprache: | chi ; eng |
| Schlagworte: | |
| Online-Zugang: | Volltext bestellen |
| Tags: |
Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
|
| container_end_page | |
|---|---|
| container_issue | |
| container_start_page | |
| container_title | |
| container_volume | |
| creator | SONG XINHAI XUE YABO ZHAO SHIQIANG HE BOWEN MIAO ZHUANG YANG XIN |
| description | The invention specifically discloses a special frequency sweeping instrument for debugging a digital radio. The special frequency sweeping instrument comprises a liquid crystal display screen, a microcontroller, a touch keyboard, a DDS signal source, a broadband amplifier, a first attenuation network, a first isolation amplifier, a true RMS conversion circuit, a comparison attenuation circuit, a logarithmic detector, a low-pass filter and an A/D sampling circuit. The special frequency sweeping instrument also comprises a second isolation amplifier, a second attenuation network and a third isolation amplifier which are connected in sequence. The microprocessor is used for controlling the direct frequency synthesis (DDS) chip to generate a frequency sweep signal required for debugging the radio, the frequency sweep range is 100KHz-3MHz, a frequency characteristic curve is displayed on the LCD liquid crystal screen, and the digital function enables debugging and numerical value reading to be very convenient.
本发明 |
| format | Patent |
| fullrecord | <record><control><sourceid>epo_EVB</sourceid><recordid>TN_cdi_epo_espacenet_CN114070424A</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><sourcerecordid>CN114070424A</sourcerecordid><originalsourceid>FETCH-epo_espacenet_CN114070424A3</originalsourceid><addsrcrecordid>eNrjZHAMLkhNzkzMUUgrSi0sTc1LrlQoLk9NLcjMS1fIzCsuKSrNTc0rUUjLL1JISU0qTU8HSaRkpmeWAPUUJaZk5vMwsKYl5hSn8kJpbgZFN9cQZw_d1IL8-NTigsTk1LzUknhnP0NDEwNzAxMjE0djYtQAAEqPMiQ</addsrcrecordid><sourcetype>Open Access Repository</sourcetype><iscdi>true</iscdi><recordtype>patent</recordtype></control><display><type>patent</type><title>Special frequency sweeping instrument for debugging digital radio</title><source>esp@cenet</source><creator>SONG XINHAI ; XUE YABO ; ZHAO SHIQIANG ; HE BOWEN ; MIAO ZHUANG ; YANG XIN</creator><creatorcontrib>SONG XINHAI ; XUE YABO ; ZHAO SHIQIANG ; HE BOWEN ; MIAO ZHUANG ; YANG XIN</creatorcontrib><description>The invention specifically discloses a special frequency sweeping instrument for debugging a digital radio. The special frequency sweeping instrument comprises a liquid crystal display screen, a microcontroller, a touch keyboard, a DDS signal source, a broadband amplifier, a first attenuation network, a first isolation amplifier, a true RMS conversion circuit, a comparison attenuation circuit, a logarithmic detector, a low-pass filter and an A/D sampling circuit. The special frequency sweeping instrument also comprises a second isolation amplifier, a second attenuation network and a third isolation amplifier which are connected in sequence. The microprocessor is used for controlling the direct frequency synthesis (DDS) chip to generate a frequency sweep signal required for debugging the radio, the frequency sweep range is 100KHz-3MHz, a frequency characteristic curve is displayed on the LCD liquid crystal screen, and the digital function enables debugging and numerical value reading to be very convenient.
本发明</description><language>chi ; eng</language><subject>ELECTRIC COMMUNICATION TECHNIQUE ; ELECTRICITY ; TRANSMISSION</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=20220218&DB=EPODOC&CC=CN&NR=114070424A$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,780,885,25563,76318</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20220218&DB=EPODOC&CC=CN&NR=114070424A$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>SONG XINHAI</creatorcontrib><creatorcontrib>XUE YABO</creatorcontrib><creatorcontrib>ZHAO SHIQIANG</creatorcontrib><creatorcontrib>HE BOWEN</creatorcontrib><creatorcontrib>MIAO ZHUANG</creatorcontrib><creatorcontrib>YANG XIN</creatorcontrib><title>Special frequency sweeping instrument for debugging digital radio</title><description>The invention specifically discloses a special frequency sweeping instrument for debugging a digital radio. The special frequency sweeping instrument comprises a liquid crystal display screen, a microcontroller, a touch keyboard, a DDS signal source, a broadband amplifier, a first attenuation network, a first isolation amplifier, a true RMS conversion circuit, a comparison attenuation circuit, a logarithmic detector, a low-pass filter and an A/D sampling circuit. The special frequency sweeping instrument also comprises a second isolation amplifier, a second attenuation network and a third isolation amplifier which are connected in sequence. The microprocessor is used for controlling the direct frequency synthesis (DDS) chip to generate a frequency sweep signal required for debugging the radio, the frequency sweep range is 100KHz-3MHz, a frequency characteristic curve is displayed on the LCD liquid crystal screen, and the digital function enables debugging and numerical value reading to be very convenient.
本发明</description><subject>ELECTRIC COMMUNICATION TECHNIQUE</subject><subject>ELECTRICITY</subject><subject>TRANSMISSION</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>2022</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNrjZHAMLkhNzkzMUUgrSi0sTc1LrlQoLk9NLcjMS1fIzCsuKSrNTc0rUUjLL1JISU0qTU8HSaRkpmeWAPUUJaZk5vMwsKYl5hSn8kJpbgZFN9cQZw_d1IL8-NTigsTk1LzUknhnP0NDEwNzAxMjE0djYtQAAEqPMiQ</recordid><startdate>20220218</startdate><enddate>20220218</enddate><creator>SONG XINHAI</creator><creator>XUE YABO</creator><creator>ZHAO SHIQIANG</creator><creator>HE BOWEN</creator><creator>MIAO ZHUANG</creator><creator>YANG XIN</creator><scope>EVB</scope></search><sort><creationdate>20220218</creationdate><title>Special frequency sweeping instrument for debugging digital radio</title><author>SONG XINHAI ; XUE YABO ; ZHAO SHIQIANG ; HE BOWEN ; MIAO ZHUANG ; YANG XIN</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_CN114070424A3</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>chi ; eng</language><creationdate>2022</creationdate><topic>ELECTRIC COMMUNICATION TECHNIQUE</topic><topic>ELECTRICITY</topic><topic>TRANSMISSION</topic><toplevel>online_resources</toplevel><creatorcontrib>SONG XINHAI</creatorcontrib><creatorcontrib>XUE YABO</creatorcontrib><creatorcontrib>ZHAO SHIQIANG</creatorcontrib><creatorcontrib>HE BOWEN</creatorcontrib><creatorcontrib>MIAO ZHUANG</creatorcontrib><creatorcontrib>YANG XIN</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>SONG XINHAI</au><au>XUE YABO</au><au>ZHAO SHIQIANG</au><au>HE BOWEN</au><au>MIAO ZHUANG</au><au>YANG XIN</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>Special frequency sweeping instrument for debugging digital radio</title><date>2022-02-18</date><risdate>2022</risdate><abstract>The invention specifically discloses a special frequency sweeping instrument for debugging a digital radio. The special frequency sweeping instrument comprises a liquid crystal display screen, a microcontroller, a touch keyboard, a DDS signal source, a broadband amplifier, a first attenuation network, a first isolation amplifier, a true RMS conversion circuit, a comparison attenuation circuit, a logarithmic detector, a low-pass filter and an A/D sampling circuit. The special frequency sweeping instrument also comprises a second isolation amplifier, a second attenuation network and a third isolation amplifier which are connected in sequence. The microprocessor is used for controlling the direct frequency synthesis (DDS) chip to generate a frequency sweep signal required for debugging the radio, the frequency sweep range is 100KHz-3MHz, a frequency characteristic curve is displayed on the LCD liquid crystal screen, and the digital function enables debugging and numerical value reading to be very convenient.
本发明</abstract><oa>free_for_read</oa></addata></record> |
| fulltext | fulltext_linktorsrc |
| identifier | |
| ispartof | |
| issn | |
| language | chi ; eng |
| recordid | cdi_epo_espacenet_CN114070424A |
| source | esp@cenet |
| subjects | ELECTRIC COMMUNICATION TECHNIQUE ELECTRICITY TRANSMISSION |
| title | Special frequency sweeping instrument for debugging digital radio |
| url | https://sfx.bib-bvb.de/sfx_tum?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&ctx_tim=2025-01-10T16%3A19%3A03IST&url_ver=Z39.88-2004&url_ctx_fmt=infofi/fmt:kev:mtx:ctx&rfr_id=info:sid/primo.exlibrisgroup.com:primo3-Article-epo_EVB&rft_val_fmt=info:ofi/fmt:kev:mtx:patent&rft.genre=patent&rft.au=SONG%20XINHAI&rft.date=2022-02-18&rft_id=info:doi/&rft_dat=%3Cepo_EVB%3ECN114070424A%3C/epo_EVB%3E%3Curl%3E%3C/url%3E&disable_directlink=true&sfx.directlink=off&sfx.report_link=0&rft_id=info:oai/&rft_id=info:pmid/&rfr_iscdi=true |