Is a
Patent attributes
Current Assignee
Patent Jurisdiction
Patent Number
Date of Patent
July 17, 2007
Patent Application Number
10976270
Date Filed
October 28, 2004
Patent Primary Examiner
Patent abstract
Projection device failure may be diagnosed by sensing improper operation of projection lamp ignitor circuitry. An ignitor failure indicator may be activated based on a sensed failure in the operation of the lamp ignitor circuitry to prevent incorrect projection lamp failure notification.
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