LED driving device with pulse width modulation
The present invention discloses an LED driving device with pulse width modulation (PWM) capable of preventing the LED display from flickering. The LED driving device primarily comprises a PWM unit for modulating the ON/OFF signal with a PWM cycle from one signal of higher resolution to two or more s...
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| creator | JENG YANGI LIN RONG-TSUNG |
| description | The present invention discloses an LED driving device with pulse width modulation (PWM) capable of preventing the LED display from flickering. The LED driving device primarily comprises a PWM unit for modulating the ON/OFF signal with a PWM cycle from one signal of higher resolution to two or more signals of lower resolution. The modulation is executed with the proviso that the duty cycle of the PWM cycle is almost or completely preserved. Accordingly, the LED will be lit more frequently and perform preset brightness with a higher refresh rate. |
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| fullrecord | <record><control><sourceid>epo_EVB</sourceid><recordid>TN_cdi_epo_espacenet_US2007164930A1</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><sourcerecordid>US2007164930A1</sourcerecordid><originalsourceid>FETCH-epo_espacenet_US2007164930A13</originalsourceid><addsrcrecordid>eNrjZNDzcXVRSCnKLMvMS1dISS3LTE5VKM8syVAoKM0pBjFTgOzc_JTSnMSSzPw8HgbWtESgBC-U5mZQdnMNcfbQTS3Ij08tLkhMTs1LLYkPDTYyMDA3NDOxNDZwNDQmThUAfQYrQg</addsrcrecordid><sourcetype>Open Access Repository</sourcetype><iscdi>true</iscdi><recordtype>patent</recordtype></control><display><type>patent</type><title>LED driving device with pulse width modulation</title><source>esp@cenet</source><creator>JENG YANGI ; LIN RONG-TSUNG</creator><creatorcontrib>JENG YANGI ; LIN RONG-TSUNG</creatorcontrib><description>The present invention discloses an LED driving device with pulse width modulation (PWM) capable of preventing the LED display from flickering. The LED driving device primarily comprises a PWM unit for modulating the ON/OFF signal with a PWM cycle from one signal of higher resolution to two or more signals of lower resolution. The modulation is executed with the proviso that the duty cycle of the PWM cycle is almost or completely preserved. Accordingly, the LED will be lit more frequently and perform preset brightness with a higher refresh rate.</description><language>eng</language><subject>ADVERTISING ; ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICESUSING STATIC MEANS TO PRESENT VARIABLE INFORMATION ; BASIC ELECTRIC ELEMENTS ; CRYPTOGRAPHY ; DISPLAY ; EDUCATION ; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR ; ELECTRICITY ; PHYSICS ; SEALS ; SEMICONDUCTOR DEVICES</subject><creationdate>2007</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=20070719&DB=EPODOC&CC=US&NR=2007164930A1$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,776,881,25542,76516</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20070719&DB=EPODOC&CC=US&NR=2007164930A1$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>JENG YANGI</creatorcontrib><creatorcontrib>LIN RONG-TSUNG</creatorcontrib><title>LED driving device with pulse width modulation</title><description>The present invention discloses an LED driving device with pulse width modulation (PWM) capable of preventing the LED display from flickering. The LED driving device primarily comprises a PWM unit for modulating the ON/OFF signal with a PWM cycle from one signal of higher resolution to two or more signals of lower resolution. The modulation is executed with the proviso that the duty cycle of the PWM cycle is almost or completely preserved. Accordingly, the LED will be lit more frequently and perform preset brightness with a higher refresh rate.</description><subject>ADVERTISING</subject><subject>ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICESUSING STATIC MEANS TO PRESENT VARIABLE INFORMATION</subject><subject>BASIC ELECTRIC ELEMENTS</subject><subject>CRYPTOGRAPHY</subject><subject>DISPLAY</subject><subject>EDUCATION</subject><subject>ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR</subject><subject>ELECTRICITY</subject><subject>PHYSICS</subject><subject>SEALS</subject><subject>SEMICONDUCTOR DEVICES</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>2007</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNrjZNDzcXVRSCnKLMvMS1dISS3LTE5VKM8syVAoKM0pBjFTgOzc_JTSnMSSzPw8HgbWtESgBC-U5mZQdnMNcfbQTS3Ij08tLkhMTs1LLYkPDTYyMDA3NDOxNDZwNDQmThUAfQYrQg</recordid><startdate>20070719</startdate><enddate>20070719</enddate><creator>JENG YANGI</creator><creator>LIN RONG-TSUNG</creator><scope>EVB</scope></search><sort><creationdate>20070719</creationdate><title>LED driving device with pulse width modulation</title><author>JENG YANGI ; LIN RONG-TSUNG</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_US2007164930A13</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng</language><creationdate>2007</creationdate><topic>ADVERTISING</topic><topic>ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICESUSING STATIC MEANS TO PRESENT VARIABLE INFORMATION</topic><topic>BASIC ELECTRIC ELEMENTS</topic><topic>CRYPTOGRAPHY</topic><topic>DISPLAY</topic><topic>EDUCATION</topic><topic>ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR</topic><topic>ELECTRICITY</topic><topic>PHYSICS</topic><topic>SEALS</topic><topic>SEMICONDUCTOR DEVICES</topic><toplevel>online_resources</toplevel><creatorcontrib>JENG YANGI</creatorcontrib><creatorcontrib>LIN RONG-TSUNG</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>JENG YANGI</au><au>LIN RONG-TSUNG</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>LED driving device with pulse width modulation</title><date>2007-07-19</date><risdate>2007</risdate><abstract>The present invention discloses an LED driving device with pulse width modulation (PWM) capable of preventing the LED display from flickering. The LED driving device primarily comprises a PWM unit for modulating the ON/OFF signal with a PWM cycle from one signal of higher resolution to two or more signals of lower resolution. The modulation is executed with the proviso that the duty cycle of the PWM cycle is almost or completely preserved. Accordingly, the LED will be lit more frequently and perform preset brightness with a higher refresh rate.</abstract><oa>free_for_read</oa></addata></record> |
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| subjects | ADVERTISING ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICESUSING STATIC MEANS TO PRESENT VARIABLE INFORMATION BASIC ELECTRIC ELEMENTS CRYPTOGRAPHY DISPLAY EDUCATION ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR ELECTRICITY PHYSICS SEALS SEMICONDUCTOR DEVICES |
| title | LED driving device with pulse width modulation |
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