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Variable speed, variable resolution digital cinema camera system

  • US 7,663,687 B2
  • Filed: 07/07/2005
  • Issued: 02/16/2010
  • Est. Priority Date: 07/12/2004
  • Status: Expired due to Fees
First Claim
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1. A digital camera comprising:

  • a plurality of imagers and a plurality of shutters mounted radially on a frame;

    a beam splitter disposed at a center of the frame, the beam splitter being rotatable to provide an input optical beam sequentially to the plurality of imagers, wherein when the input optical beam is aligned with a particular one of the imagers, a corresponding one of the shutters is triggered to apply the optical beam on the particular one of the imagers;

    a RAM for storing image streams generated by the imagers as image data; and

    a removable magazine including a hard disk drive, wherein the image data stored in the RAM are transferred to the hard disk drive,wherein the magazine can be replaced with a new magazine, such that the image data can remain in the removed magazine while new image data is being stored in the new magazine,wherein the RAM comprises a plurality of triple port RAMs having a first port, a second port and a third port, wherein the image data is stored via the first port, the stored image data is read via the second port to be transferred to the hard disk drive on a first-in, first-out basis, and the stored image data is read via the third port on a first-in, first-out basis to be converted into a format for viewing while the image streams are being generated.

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