electronic products successor microsemi headquarters san jose california usa revenue 208.1 million fy 2011 operating income 4.3 million fy 2011 net income 24.3 million fy 2011 total assets 235.8 million fy 2011 total equity 184.2 million fy 2011 number of employees 584 june 2011 website http www.symmetricom.com symmetricom inc. nasdaq symm now acquired by microsemi developed manufactured and supplied timekeeping technology to customers in industry and government worldwide that require extremely precise synchronization . symmetricom products supported precise timing standards including gps based timing ieee 1588 ptp network time protocol ntp synchronous ethernet and data over cable service interface specifications docsis timing . products included hydrogen masers rubidium and cesium atomic standards temperature and oven controlled crystal oscillators miniature and chip scale atomic clocks network time servers network sync management systems cable timekeeping solutions telecom synchronization supply units ssus and timing test sets . symmetricom was one of the only two world s commercial supplier of cesium atomic standards atomic clocks the other one is oscilloquartz in switzerland . by weighted average symmetricom atomic clocks contributed over 90 % of utc coordinated universal time the world time standard . the bipm international bureau of weights and measures calculates utc by averaging the combined contributions of the national laboratories of its member countries . symmetricom was headquartered in san jose california with research and development centers in boulder colorado ; beverly massachusetts ; tuscaloosa alabama ; and beijing china . references edit symmetricom was acquired by microsemi in oct 2013 retrieved from https en.wikipedia.org w index.php title symmetricom & oldid 711931825 categories companies based in silicon valleyelectronics companiestechnology companies of the united states navigation menu personal tools not logged intalkcontributionscreate accountlog in namespaces article talk variants views read edit view history more search navigation main pagecontentsfeatured contentcurrent eventsrandom articledonate to wikipediawikipedia store interaction helpabout wikipediacommunity portalrecent changescontact page tools what links hererelated changesupload filespecial pagespermanent linkpage informationwikidata itemcite this page print export create a bookdownload as pdfprintable version languages add links this page was last modified on 25 march 2016 at 20 13 . text is available under the creative commons attribution sharealike license ; additional terms may apply . by using this site you agree to the terms of use and privacy policy . wikipedia is a registered trademark of the wikimedia foundation inc. a non profit organization . privacy policy about wikipedia disclaimers contact wikipedia developers cookie statement mobile view