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<title>Oak Technology</title>

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<span id="openzim-page-title" class="mw-page-title-main"><span class="mw-page-title-main">Oak Technology</span></span>

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</style><div role="note" class="hatnote navigation-not-searchable">Not to be confused with <a href="Oak_Industries" title="Oak Industries">Oak Industries</a>.</div>

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</style><table class="infobox ib-company vcard"><caption class="infobox-title fn org" style="font-size: 125%;">Oak Technology</caption><tbody><tr><td colspan="2" class="infobox-image ib-company-logo logo"></td></tr><tr><th scope="row" class="infobox-label">Industry</th><td class="infobox-data category"><a href="Semiconductor" title="Semiconductor">Semiconductors</a></td></tr><tr><th scope="row" class="infobox-label">Founded</th><td class="infobox-data">1987<span style="display:none"> (<span class="bday dtstart published updated">1987</span>)</span></td></tr><tr><th scope="row" class="infobox-label">Fate</th><td class="infobox-data">acquired by <a href="Zoran_Corporation" title="Zoran Corporation">Zoran Corporation</a> in 2003</td></tr><tr><th scope="row" class="infobox-label">Headquarters</th><td class="infobox-data adr"><div class="ib-company-locality locality"><a href="Sunnyvale%2C_California" title="Sunnyvale, California">Sunnyvale, California</a></div>, <div class="ib-company-country country-name"><a href="United_States" title="United States">United States</a></div></td></tr><tr><th scope="row" class="infobox-label"><div style="display: inline-block; line-height: 1.2em; padding: .1em 0;">Area served</div></th><td class="infobox-data">Worldwide</td></tr><tr><th scope="row" class="infobox-label">Products</th><td class="infobox-data"><a href="GPU" class="mw-redirect" title="GPU">GPU</a> and video, <a href="CD-ROM" title="CD-ROM">CD-ROM</a>, <a href="Optical_storage" title="Optical storage">optical storage</a></td></tr></tbody></table>

<p><b>Oak Technology</b> (OAKT) was an American supplier of <a href="Semiconductor" title="Semiconductor">semiconductor</a> chips for sound cards, graphics cards and <a href="Optical_storage" title="Optical storage">optical storage</a> devices such as <a href="CD-ROM" title="CD-ROM">CD-ROM</a>, <a href="CD-RW" title="CD-RW">CD-RW</a> and <a href="DVD" title="DVD">DVD</a>. It achieved success with optical storage chips and its stock price increased substantially around the time of the <a href="Tech_bubble" class="mw-redirect" title="Tech bubble">tech bubble</a> in 2000.<sup id="cite_ref-CEO_interview_1-0" class="reference"><a href="#cite_note-CEO_interview-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup> After falling on hard times, in 2003 it was acquired by <a href="Zoran_Corporation" title="Zoran Corporation">Zoran Corporation</a>.<sup id="cite_ref-Zoran_acquisition_2-0" class="reference"><a href="#cite_note-Zoran_acquisition-2"><span class="cite-bracket">[</span>2<span class="cite-bracket">]</span></a></sup>

</p><p>Oak Technology helped develop the <a href="ATAPI" title="ATAPI">ATAPI</a> standard and provided the <i>oakcdrom.sys</i> <a href="CD-ROM" title="CD-ROM">CD-ROM</a> <a href="Device_driver" title="Device driver">driver</a> that was ubiquitous on <a href="DOS" title="DOS">DOS</a>-based systems in the mid-1990s.

</p>

<div class="mw-heading mw-heading2"><h2 id="History">History</h2></div>

<p>Oak Technology, Inc. was founded by semiconductor pioneer David Tsang in 1987 and was headquartered in <a href="Sunnyvale%2C_California" title="Sunnyvale, California">Sunnyvale, California</a>, United States with operations across the US and Asia Pacific. During the late 1980s through the early 1990s, Oak was a supplier of PC graphics (<a href="SVGA" class="mw-redirect" title="SVGA">SVGA</a>) <a href="Chipset" title="Chipset">chipsets</a>, CD-ROM controller chips and <a href="Printed_circuit_board" title="Printed circuit board">PCBs</a>. Oak Technology also supplied motherboard chipsets – a PS/2-compatible chipset and the Oaknote chipset for notebooks. Oak enjoyed modest success in the value segment (low-end) of the market.

</p><p>In 1994, <a href="Sun_Microsystems" title="Sun Microsystems">Sun Microsystems</a> decided to change the name of their new language from <i><a href="Oak_(programming_language)" title="Oak (programming language)">Oak</a></i> to <i><a href="Java_(programming_language)" title="Java (programming language)">Java</a></i> because <i>Oak</i> was already trademarked by Oak Technology.<sup id="cite_ref-3" class="reference"><a href="#cite_note-3"><span class="cite-bracket">[</span>3<span class="cite-bracket">]</span></a></sup>

</p>

<div class="mw-heading mw-heading2"><h2 id="Initial_Public_Offering_(IPO)">Initial Public Offering (IPO)</h2></div>

<p>The company had a dominant position early on in the market for semiconductors for CD-ROM drives (around 1995) and with business lines including PC graphics and optical storage for the personal computing market led to a successful <a href="IPO" class="mw-redirect" title="IPO">IPO</a> and Secondary Offering shortly thereafter. Oak regained a prominent position in optical storage chips as the market transitioned to recordable/rewritable technology, resulting in substantial revenue growth and stock price appreciation at the height of the tech bubble in 2000.<sup id="cite_ref-CEO_interview_1-1" class="reference"><a href="#cite_note-CEO_interview-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup>

</p><p>However, the company could not maintain growth and the stock price declined substantially, including a drop by more than half on 19 June 2002.<sup id="cite_ref-4" class="reference"><a href="#cite_note-4"><span class="cite-bracket">[</span>4<span class="cite-bracket">]</span></a></sup>

</p><p>It then acquired the pioneering digital TV chip company Teralogic at the end of 2002 <sup id="cite_ref-5" class="reference"><a href="#cite_note-5"><span class="cite-bracket">[</span>5<span class="cite-bracket">]</span></a></sup> whose technology would later contribute to Zoran's DTV chip development after Zoran acquired Oak Technology in 2003.<sup id="cite_ref-Zoran_acquisition_2-1" class="reference"><a href="#cite_note-Zoran_acquisition-2"><span class="cite-bracket">[</span>2<span class="cite-bracket">]</span></a></sup>

</p>

<div class="mw-heading mw-heading2"><h2 id="Graphics_products">Graphics products</h2></div>

<p>Oak's graphics efforts started off in 2D but by the mid 1990s, the Company encouraged by ambitions to bring forward advanced level 3D graphics at reasonable cost for PC and gaming embarked on the Warp 5 (below). Oak formed a 3-D graphics business unit, and in 1996, Oak announced that its new graphics controllers would support Microsoft’s “Direct3D” and “ActiveMovie” game and video playback formats.

</p><p><b>Warp 5 - OTI 64317</b> <sup id="cite_ref-6" class="reference"><a href="#cite_note-6"><span class="cite-bracket">[</span>6<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-7" class="reference"><a href="#cite_note-7"><span class="cite-bracket">[</span>7<span class="cite-bracket">]</span></a></sup>

- During the mid 1990s, Oak was developing their first and only 2D/3D <a href="Graphics_accelerator" class="mw-redirect" title="Graphics accelerator">graphics accelerator</a> chip. Warp 5 was to be a tile-based deferred renderer (TBDR), similar to <a href="PowerVR" title="PowerVR">PowerVR</a>'s chipsets but was the first to combine tiling with other high performance rendering algorithms including anti aliasing and tri linear mip mapping.<sup id="cite_ref-8" class="reference"><a href="#cite_note-8"><span class="cite-bracket">[</span>8<span class="cite-bracket">]</span></a></sup> In the same vein as the <a href="S3_Graphics" title="S3 Graphics">S3</a> <a href="ViRGE" class="mw-redirect" title="ViRGE">ViRGE</a> chip, the Warp 5 was <a href="Pin-compatibility" class="mw-redirect" title="Pin-compatibility">pin-compatible</a> with a 2D-only predecessor.

</p><p>Technologies contained in the Warp 5 were well ahead of its era. This graphics processor was based on a region concept and had many similarities to <a href="Microsoft_Talisman" title="Microsoft Talisman">Microsoft's Talisman</a> architecture. The chip processed each region at a time and did on chip z-sorting and <a href="Spatial_anti-aliasing" title="Spatial anti-aliasing">anti-aliasing</a>. As a result, the chip did 24-bit <a href="Floating_point" class="mw-redirect" title="Floating point">floating point</a> Z, <a href="Sub-pixel" class="mw-redirect" title="Sub-pixel">sub-pixel</a> anti-aliasing, order independent <a href="Translucency" class="mw-redirect" title="Translucency">translucency</a>, non-linear fogging and atmospheric effects and <a href="Mipmap" title="Mipmap">MIP-Mapping</a>. Typically, such region based architectures are gated by the number of <a href="Polygons" class="mw-redirect" title="Polygons">polygons</a> that can be processed per region, but Oak claimed that there were no such limitations in the WARP 5.

</p><p>The specifications included:

</p>

<ul><li>50m <a href="Pixels" class="mw-redirect" title="Pixels">pixels</a>/sec (all features turned on)</li>

<li><a href="Dynamic_random_access_memory" class="mw-redirect" title="Dynamic random access memory">EDO</a> and <a href="Dynamic_random_access_memory" class="mw-redirect" title="Dynamic random access memory">SGRAM</a> Memory Supported - 8 MB</li>

<li>On-chip <a href="CPU_cache" title="CPU cache">Texture Cache</a></li>

<li>2D <a href="GUI" class="mw-redirect" title="GUI">GUI</a> acceleration</li>

<li>Video Scaling in Y</li>

<li>VBI support Including <a href="Intercast" title="Intercast">Intercast</a></li>

<li>220 MHz <a href="RAMDAC" title="RAMDAC">RAMDAC</a></li>

<li>Resolutions to 1600 × 1200</li>

<li><a href="Direct3D" title="Direct3D">Direct3D</a> and <a href="BRender" class="mw-redirect" title="BRender">BRender</a> <a href="Application_programming_interface" class="mw-redirect" title="Application programming interface">APIs</a> supported</li>

<li>OS support <a href="Windows_95" title="Windows 95">Windows 95</a> and <a href="Windows_NT" title="Windows NT">Windows NT</a></li>

<li>Packaging - 256 pin <a href="Ball_grid_array" title="Ball grid array">BGA</a></li>

<li><a href="Pin-compatibility" class="mw-redirect" title="Pin-compatibility">Pin Compatibility</a> with OAK OTI-74217 EON 2D GUI accelerator</li></ul>

<div class="mw-heading mw-heading2"><h2 id="List_of_Graphics_products">List of Graphics products</h2></div>

<p><b>OTI037C</b> - 8-bit <a href="VGA" class="mw-redirect" title="VGA">VGA</a> chipset, with up to 256KB of <a href="DRAM" class="mw-redirect" title="DRAM">DRAM</a>. Provided support for VGA, <a href="Enhanced_Graphics_Adapter" title="Enhanced Graphics Adapter">EGA</a> & <a href="Color_Graphics_Adapter" title="Color Graphics Adapter">CGA</a> display modes. Most are only able to do standard VGA modes.

(i.e. up to 320×200×256 and up to 640×480×16).

</p><p><b>OTI057/067</b> - <a href="Industry_Standard_Architecture" title="Industry Standard Architecture">ISA</a> SVGA chipset. Supports up to 512KB of DRAM (usually 70/80 ns).

</p><p><b>OTI077</b> - Enhanced version of the OTI067. Includes support for 1MB and up to 65 MHz dot clock. Capable of resolutions up to 1024×768×256 colors in non-interlaced mode, and up to 1280×1024×16 colors interlaced.

</p>

<p><b>OTI087</b> - ISA SVGA chipset, and one of the first <a href="VESA_Local_Bus" title="VESA Local Bus">VLB</a> chipsets available. Has a 16-bit external <a href="Data_path" class="mw-redirect" title="Data path">data path</a>, and a 32-bit internal <a href="Memory_controller" title="Memory controller">memory controller</a> data path. It features an improved, local-bus compatible host interface controller with read and write caching capabilities similar to those implemented on <a href="Tseng_Labs_ET4000" title="Tseng Labs ET4000">Tseng ET4000AX</a> graphics chips, along with register-based color expansion, color fill, 16-bit graphic latch and some other new (for its time) features.<sup id="cite_ref-9" class="reference"><a href="#cite_note-9"><span class="cite-bracket">[</span>9<span class="cite-bracket">]</span></a></sup> Maximum BIOS resolutions are 1024x768x256 non-interlaced and 1280×1024×256 interlaced. Maximum dot clock is 80 MHz, but is usually coupled with the OTI068 <a href="Clock_generator" title="Clock generator">clock generator</a> capable of frequencies up to 78 MHz. This chipset supports up to 2MB of 70/70R ns DRAM.

</p><p>A modified version, OTI087X, added a hardware mouse cursor sprite.<sup id="cite_ref-10" class="reference"><a href="#cite_note-10"><span class="cite-bracket">[</span>10<span class="cite-bracket">]</span></a></sup> It was implemented on many <a href="Weitek" title="Weitek">Weitek</a> P9000-based graphics boards as a companion VGA controller; unfortunately, on these boards the chip was typically configured with a narrow 8-bit data path to its own dedicated VGA memory, resulting in sub-par VGA mode performance.

</p><p><b>Spitfire - OTI 64105/64107</b> - PCI/VLB/ISA chipset with 64-bit DRAM support. Provides 2D/GUI acceleration features comparable to other 64-bit accelerators of its time.

</p><p><b>Spitfire - OTI 64111</b> - Enhanced version of the 64105/64107, with integrated 135 MHz RAMDAC. DRAM and EDO supported.<sup id="cite_ref-11" class="reference"><a href="#cite_note-11"><span class="cite-bracket">[</span>11<span class="cite-bracket">]</span></a></sup>

</p><p><b>Eon - OTI 64217</b> - PCI chipset with support for <a href="EDO_DRAM" class="mw-redirect" title="EDO DRAM">EDO DRAM</a> and <a href="SGRAM" class="mw-redirect" title="SGRAM">SGRAM</a>.

</p><p><b>Warp 5 - OTI 64317</b> - PCI chipset and 2D/3D graphics accelerator. Support for <a href="EDO_DRAM" class="mw-redirect" title="EDO DRAM">EDO DRAM</a> and <a href="SGRAM" class="mw-redirect" title="SGRAM">SGRAM</a>, resolutions up to 1600x1200, and Direct3D accelerated graphics. Pin compatible with OTI 64217. <sup id="cite_ref-12" class="reference"><a href="#cite_note-12"><span class="cite-bracket">[</span>12<span class="cite-bracket">]</span></a></sup>

</p>

<div class="mw-heading mw-heading2"><h2 id="Optical_storage_products">Optical storage products</h2></div>

<p>Oak's entrance into the CD-ROM controller business was a huge success. By 1994, it had sold millions of chip solutions for CD-ROM, CD-R/RW, <a href="DVD-ROM" class="mw-redirect" title="DVD-ROM">DVD-ROM</a> and DVD-ROM/CD-RW combo drives, primarily for the PC market. With the <a href="Integrated_Drive_Electronics" class="mw-redirect" title="Integrated Drive Electronics">IDE</a> interface established and “<a href="Plug-and-play" class="mw-redirect" title="Plug-and-play">plug-and-play</a>” CD-ROM drives on the horizon, Oak anticipated an explosion in CD-ROM sales and added a new <a href="Semiconductor_foundry" class="mw-redirect" title="Semiconductor foundry">semiconductor foundry</a> partner in Korea to help it absorb the expected leap in controller orders. In October 1994, Oak released the OTI-201, a new sound and <a href="Video_compression" class="mw-redirect" title="Video compression">video compression</a>/decompression controller based on the new multimedia <a href="MPEG" class="mw-redirect" title="MPEG">MPEG</a> (Motion Pictures Expert Group) standard. MPEG-based videos were most commonly used for public PC-based information kiosks and corporate training videos. The OTI-201 was the industry’s first MPEG decoder designed specifically for multimedia PCS and enabled peripheral manufacturers to offer high-performance MPEG-format graphics and video on a single add-on expansion board. With CD-ROM controllers expected to eventually become a cheap commodity product, CEO, Tsang viewed the OTI-201 as another way for Oak to expand its customer base and maintain its heady growth. With Oak’s experience producing graphics chips and computer connectivity products, Tsang planned even newer generations of PC video display controllers as well as chips for 3D graphics, recordable CD-ROMs, TV set-top boxes, <a href="CD_Video" title="CD Video">CD Video</a> players, and PC-based video production and <a href="Teleconferencing" class="mw-redirect" title="Teleconferencing">teleconferencing</a>. By January 1995 the company that Investor’s Business Daily had once described as a “behind the scenes supplier of minor computer parts” had evolved itself into the world’s leading producer of CD-ROM controller chips, which now generated the lion’s share of its annual revenues. CD-ROM sales in 1995 were three times what they had been in 1993, spurred by the rapid evolution in CD-ROM drive speeds.

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<div class="mw-heading mw-heading2"><h2 id="References">References</h2></div>

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<li id="cite_note-3"><span class="mw-cite-backlink"><b><a href="#cite_ref-3">^</a></b></span> <span class="reference-text"><cite id="CITEREFMurphy1996" class="citation web cs1">Murphy, Kieron (4 October 1996). <a rel="nofollow" class="external text" href="https://www.infoworld.com/article/2077265/so-why-did-they-decide-to-call-it-java-.html">"So why did they decide to call it Java?"</a>. <i><a href="JavaWorld" class="mw-redirect" title="JavaWorld">JavaWorld</a></i><span class="reference-accessdate">. Retrieved <span class="nowrap">2020-07-15</span></span>.</cite></span>

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<li id="cite_note-5"><span class="mw-cite-backlink"><b><a href="#cite_ref-5">^</a></b></span> <span class="reference-text"><cite class="citation web cs1"><a rel="nofollow" class="external text" href="http://www.edn.com/electronics-news/4347602/Oak-to-Acquire-TeraLogic-for-38M">"Oak to Acquire TeraLogic for $38M"</a>. EDN. October 8, 2002<span class="reference-accessdate">. Retrieved <span class="nowrap">May 16,</span> 2014</span>.</cite></span>

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<li id="cite_note-6"><span class="mw-cite-backlink"><b><a href="#cite_ref-6">^</a></b></span> <span class="reference-text"><cite class="citation web cs1"><a rel="nofollow" class="external text" href="http://members.tripod.com/~FireEYE/warp5.html">"Oak Warp 5 Review by Rage's Hardware"</a>. n.d<span class="reference-accessdate">. Retrieved <span class="nowrap">December 26,</span> 2005</span>.</cite></span>

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<li id="cite_note-7"><span class="mw-cite-backlink"><b><a href="#cite_ref-7">^</a></b></span> <span class="reference-text"><cite class="citation web cs1"><a rel="nofollow" class="external text" href="http://members.tripod.com/~FireEYE/benchgr.html">"Video Card Benchmark Page by Rage's Hardware"</a>. n.d<span class="reference-accessdate">. Retrieved <span class="nowrap">December 26,</span> 2005</span>.</cite></span>

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<li id="cite_note-8"><span class="mw-cite-backlink"><b><a href="#cite_ref-8">^</a></b></span> <span class="reference-text"><cite id="CITEREFMacLellan1997" class="citation news cs1">MacLellan, Andrew (June 23, 1997). "Oak intros 3-D chip - Warp 5 acccelerator uses Talisman-like rendering scheme". No. 1063. Electronic Buyers News.</cite></span>

</li>

<li id="cite_note-9"><span class="mw-cite-backlink"><b><a href="#cite_ref-9">^</a></b></span> <span class="reference-text"><a rel="nofollow" class="external text" href="http://www.vgamuseum.info/index.php/cpu/item/download/449_8328689f263e5a3135bb9d36ef57beaa">VGA Museum</a></span>

</li>

<li id="cite_note-10"><span class="mw-cite-backlink"><b><a href="#cite_ref-10">^</a></b></span> <span class="reference-text"><cite class="citation news cs1"><a rel="nofollow" class="external text" href="https://corbatech.sourceforge.net/appleII/SecondSight_OTI087.pdf">"Local bus VGA graphics controller"</a> <span class="cs1-format">(PDF)</span>. <i>sourceforge.net</i><span class="reference-accessdate">. Retrieved <span class="nowrap">July 9,</span> 2023</span>.</cite></span>

</li>

<li id="cite_note-11"><span class="mw-cite-backlink"><b><a href="#cite_ref-11">^</a></b></span> <span class="reference-text"><a rel="nofollow" class="external text" href="http://m.vgamuseum.info/images/doc/oak/oti-64111_specs.pdf">Spitfire Oti 64111 Multimedia/GUI accelerator</a></span>

</li>

<li id="cite_note-12"><span class="mw-cite-backlink"><b><a href="#cite_ref-12">^</a></b></span> <span class="reference-text"><a rel="nofollow" class="external text" href="https://auth.vgamuseum.info/images/doc/oak/oti-64317_warp5_product_brief.pdf">Warp 5 64-bit 3D Graphics Accelerator</a></span>

</li>

</ol></div>

<div class="mw-heading mw-heading2"><h2 id="External_links">External links</h2></div>

<ul><li><a rel="nofollow" class="external text" href="https://web.archive.org/web/20030610010259/http://www.oaktech.com/">Official website (archived)</a></li></ul>

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