Editing TiVo Corporation (section)

==Legacy products==
The company historically developed technologies and products that helped protect content from being pirated. Its two core legacy products were called RipGuard and the Analog Protection System (APS).

===RipGuard===

Macrovision introduced its RipGuard technology in February 2005. It was designed to prevent or reduce digital DVD copying by altering the format of the DVD content to disrupt the ripping software. Although the technology could be circumvented by several current DVD rippers such as [[AnyDVD]] or DVDFab, Macrovision claimed that 95% of casual users lack the knowledge and/or determination to be able to copy a DVD with RipGuard technology.<ref>{{cite web |url=http://www.rovicorp.com/products/content_producers/protect/ripguard.htm |title=RipGuard DVD – DVD Copy Protection and DVD Encryption Software Protection – Rovi |publisher=Rovicorp.com |access-date=2010-05-24 |archive-date=2010-05-29 |archive-url=https://web.archive.org/web/20100529113554/http://www.rovicorp.com/products/content_producers/protect/ripguard.htm |url-status=live }}</ref>

===Analog Protection System{{anchor|Analog Copy Protection (ACP)}}===
{{main|Analog Protection System}}
The Analog Protection System (APS), also known as Analog Copy Protection (ACP), Copyguard or Macrovision, was the Macrovision Corporation's flagship product,  a [[copy protection]] system for both [[VHS]] and [[DVD]]. Video tapes copied from [[DVD]]s encoded with APS become garbled and unwatchable. The process works by adding pulses to analog video signals to negatively impact the [[automatic gain control|AGC]] circuit of a recording device. In digital devices, changes to the analog [[video signal]] are created by a chip that converts the digital video to analog within the device. In [[DVD player]]s, trigger bits are created during [[DVD authoring]] to inform the APS that it should be applied to DVD players' analog outputs or analog video outputs on a [[personal computer|PC]] while playing back a protected DVD-Video disc. In [[set top box]]es trigger bits are incorporated into [[Conditional Access]] Entitlement Control Messages (ECM) in the stream delivered to the STB. In VHS, alterations to the analog video signal are added in a [[Macrovision]]-provided "processor box" used by duplicators.

===As Macrovision===
* In 2000, Macrovision acquired Globetrotter, creators of the [[FLEXlm]], which was subsequently renamed [[Flexnet]].<ref>{{cite news|title=Macrovision Completes Acquisition of GLOBEtrotter Software|url=http://www.thefreelibrary.com/Macrovision+Completes+Acquisition+of+GLOBEtrotter+Software,+Leading...-a064991885|newspaper=Business Wire|date=1 Sep 2000|access-date=13 January 2012|archive-date=25 July 2013|archive-url=https://web.archive.org/web/20130725002709/http://www.thefreelibrary.com/Macrovision+Completes+Acquisition+of+GLOBEtrotter+Software%2c+Leading...-a064991885|url-status=live}}</ref>
* In 2002, Macrovision acquired [[Israel]]i company Midbar Technologies, developers of the [[Cactus Data Shield]] music copy protection solution for $17 million. Additionally the same year, Macrovision acquired all the music copy protection and digital rights management (DRM) assets of TTR Technologies (formerly NASDAQ listed under the ticker TTRE).<ref>{{cite news|title=Macrovision moves to acquire Midbar group|url=http://www.musicweek.com/story.asp?storyCode=551&sectioncode=1|newspaper=MusicWeek|date=November 11, 2002|access-date=January 13, 2012|archive-date=March 24, 2021|archive-url=https://web.archive.org/web/20210324070731/https://www.musicweek.com/news/read/macrovision-moves-to-acquire-midbar-group/024753|url-status=live}}</ref>
* In 2004, Macrovision acquired [[InstallShield]], creators of installation authoring software (later [[Divestment|divested]] to [[Private equity firm|private equity]]).
* In 2005, Macrovision acquired the [[intellectual property]] rights to [[DVD Decrypter]] from its developer.<ref name="afterdawn.com">{{cite web |url=http://www.afterdawn.com/news/archive/7056.cfm |title=DVD Decrypter to be removed |publisher=AfterDawn |date=2005-11-24 |access-date=2010-05-24 |archive-date=2009-03-09 |archive-url=https://web.archive.org/web/20090309214323/http://www.afterdawn.com/news/archive/7056.cfm |url-status=live }}</ref>
* In 2005, Macrovision acquired ZeroG Software, creators of [[InstallAnywhere]] (direct competition to InstallShield MP (MultiPlatform)), and [[Trymedia Systems]].
* In 2006, Macrovision acquired [[eMeta]].
* On January 1, 2007, Macrovision acquired Mediabolic, Inc.<ref>{{cite web |url=http://www.venturedeal.com/VentureCapital/a0e138b1-db0a-4208-be4c-0fb2a4faf47d/Rovi-Acquires-Mediabolic-For-$43,500,000/Default.aspx |title=Rovi-Acquires-Mediabolic-For-$43,500,000 |publisher=VentureDeal |date=2007-01-03 |access-date=2012-01-14 |archive-date=2011-11-27 |archive-url=https://web.archive.org/web/20111127114215/http://www.venturedeal.com/VentureCapital/a0e138b1-db0a-4208-be4c-0fb2a4faf47d/Rovi-Acquires-Mediabolic-For-$43,500,000/Default.aspx |url-status=live }}</ref>
* On November 6, 2007, Macrovision announced its intention to acquire [[All Media Guide]].<ref>{{cite web |url=http://www.rovicorp.com/company/newscenter/pressreleases/1434_7844.htm |archive-url=https://web.archive.org/web/20111008033345/http://www.rovicorp.com/company/newscenter/pressreleases/1434_7844.htm |url-status=dead |archive-date=2011-10-08 |title=Press Releases – Next Generation Media Guide – Rovi |publisher=Rovicorp.com |access-date=2012-01-14 }}</ref>
* On December 7, 2007, Macrovision announced an agreement to acquire [[Gemstar-TV Guide]]<ref>{{cite web |url=http://www.bloobble.com/broadband-presentations/presentations?itemid=1055 |title=Macrovision Agrees to Acquire Gemstar-TV Guide. :: Rovi |publisher=Bloobble.com |access-date=2012-01-14 |archive-date=2011-11-27 |archive-url=https://web.archive.org/web/20111127131848/http://www.bloobble.com/broadband-presentations/presentations?itemid=1055 |url-status=live }}</ref> and completed the purchase on August 5, 2008.
* On December 19, 2007, Macrovision purchased [[BD+]] [[Digital rights management|DRM]] technology from [[Cryptography Research]], Inc.
* On April 15, 2009, Macrovision announced that it has acquired substantially all of the assets of [[Muze]], Inc.<ref>{{cite web |last=Kaplan |first=David |url=http://paidcontent.org/article/419-macrovision-buys-muze/ |title=Macrovision Buys Metadata Provider Muze For $16.5 Million |publisher=paidContent |date=2009-04-15 |access-date=2012-01-14 |archive-date=2011-12-14 |archive-url=https://web.archive.org/web/20111214185015/http://paidcontent.org/article/419-macrovision-buys-muze/ |url-status=live }}</ref>

===As Rovi===
* On March 16, 2010, Rovi acquired Recommendations Service MediaUnbound.<ref>{{cite web |last=Ali |first=Rafat |url=http://paidcontent.org/article/419-rovi-acquires-recommendations-service-mediaunbound/ |title=Rovi Acquires Recommendations Service MediaUnbound |publisher=paidContent |date=2010-03-16 |access-date=2012-01-14 |archive-date=2011-12-30 |archive-url=https://web.archive.org/web/20111230080901/http://paidcontent.org/article/419-rovi-acquires-recommendations-service-mediaunbound/ |url-status=live }}</ref>
* On December 23, 2010, Rovi announced its intention to acquire [[Sonic Solutions]].<ref>{{cite web |url=https://www.engadget.com/2010/12/23/rovi-announces-agreement-to-acquire-sonic-solutions-for-720-mil/ |title=Rovi announces agreement to acquire Sonic Solutions for $720 million |publisher=Engadget |access-date=2012-01-14 |archive-date=2012-02-04 |archive-url=https://web.archive.org/web/20120204060932/http://www.engadget.com/2010/12/23/rovi-announces-agreement-to-acquire-sonic-solutions-for-720-mil |url-status=live }}</ref>
* On March 1, 2011, Rovi acquired [[SideReel]].<ref>{{cite web |url=http://www.appmarket.tv/news/1074-rovi-acquires-sidereelcom-launches-allrovicom-an-immersive-and-interactive-film-and-music-site-for-entertainment-fans.html |archive-url=https://web.archive.org/web/20110305035154/http://www.appmarket.tv/news/1074-rovi-acquires-sidereelcom-launches-allrovicom-an-immersive-and-interactive-film-and-music-site-for-entertainment-fans.html |url-status=dead |archive-date=2011-03-05 |title=Rovi Acquires SideReel.com – Launches AllRovi.com: An Immersive and Interactive Film and Music Site for Entertainment Fans |publisher=Appmarket.tv |date=2011-03-01 |access-date=2012-01-14 }}</ref>
* On May 5, 2011, Rovi acquired DigiForge.<ref>{{cite web |author=Jim Barthold |url=http://www.fiercecable.com/story/rovi-acquires-digiforge-reportedly-improve-cable-visibility/2011-05-06 |title=Rovi acquires DigiForge, reportedly to improve cable visibility |publisher=FierceCable |date=2011-05-06 |access-date=2012-01-14 |archive-date=2011-11-27 |archive-url=https://web.archive.org/web/20111127115608/http://www.fiercecable.com/story/rovi-acquires-digiforge-reportedly-improve-cable-visibility/2011-05-06 |url-status=live }}</ref>
* In 2012, Rovi acquired Snapstick.
* In February 2012, Rovi sold [[Roxio]] to [[Corel]].<ref>{{cite web |title=Corel completes acquisition of Roxio from Rovi Corporation |url=https://www.privateequitywire.co.uk/2012/02/09/161834/corel-completes-acquisition-roxio-rovi-corporation |website=Private Equity Wire |publisher=Global Fund Media Ltd |access-date=3 December 2019 |archive-date=3 December 2019 |archive-url=https://web.archive.org/web/20191203092031/https://www.privateequitywire.co.uk/2012/02/09/161834/corel-completes-acquisition-roxio-rovi-corporation |url-status=live }}</ref>
* On April 1, 2013, Rovi acquired Integral Reach.<ref>{{Cite web |date=2013-06-03 |title=Rovi Debuts Entertainment Analytics, Big Data for Multiscreen |url=https://www.streamingmedia.com/Articles/ReadArticle.aspx?ArticleID=90003 |access-date=2023-11-28 |website=Streaming Media Magazine |language=en-US}}</ref>
* On February 25, 2014, Rovi acquired [[Veveo]].<ref>{{Cite web|title=Video Discovery Specialist Rovi Acquires Voice Search Startup Veveo For Up To $69 Million|url=https://techcrunch.com/2014/02/24/video-discovery-specialist-rovi-acquires-voice-search-startup-veveo-for-up-to-69-million/|access-date=2021-03-05|website=TechCrunch|language=en-US|archive-date=2021-03-24|archive-url=https://web.archive.org/web/20210324070742/https://techcrunch.com/2014/02/24/video-discovery-specialist-rovi-acquires-voice-search-startup-veveo-for-up-to-69-million/|url-status=live}}</ref>
* On November 3, 2014, Rovi acquired Fanhattan, a company that ran the Fan TV service, and owners of The Movie Database,<ref>{{Cite web |last=Schonfeld |first=Erick |date=2010-12-16 |title=Fanhattan Promises Better Internet TV Through The Power Of Data (TCTV) |url=https://techcrunch.com/2010/12/16/fanhattan/ |access-date=2024-01-04 |website=TechCrunch |language=en-US}}</ref> for $12.0 million in cash.<ref>{{cite web|url=http://www.rovicorp.com/company/press-releases/2014/11/3/rovi-acquires-content-discovery-and-navigation-innovator-fanhatt.html|title=Rovi Acquires Content Discovery and Navigation Innovator Fanhattan|publisher=rovi.com|date=2014-11-03|access-date=2014-11-03|archive-date=2014-11-06|archive-url=https://web.archive.org/web/20141106174914/http://www.rovicorp.com/company/press-releases/2014/11/3/rovi-acquires-content-discovery-and-navigation-innovator-fanhatt.html|url-status=live}}</ref>
* On April 29, 2016, Rovi confirmed that it would acquire [[TiVo Inc.|TiVo]] for approximately $1.1 billion.<ref name=":0">{{Cite web|url=https://www.usatoday.com/story/tech/news/2016/04/29/rovi-acquires-dvr-company-tivo/83692332/|title=Rovi acquires DVR company TiVo|last=Snider|first=Mike|date=2016-04-29|website=USA TODAY|access-date=2016-04-29|archive-date=2016-04-30|archive-url=https://web.archive.org/web/20160430235939/http://www.usatoday.com/story/tech/news/2016/04/29/rovi-acquires-dvr-company-tivo/83692332/|url-status=live}}</ref>