High definition television signal for film-television standards conversion system
Method and apparatus for generating a high definition electronic signal from a line scan of a color original
Digital image interpolation system for zoom and pan effects
Video conversions of video signal formats Patent #: 5327235
ApplicationNo. 298104 filed on 08/30/1994
US Classes:348/722, STUDIO EQUIPMENT348/445, Conversion between standards with different aspect ratios348/554, Multimode (e.g., composite, Y, C; baseband RF)348/556, For format with different aspect ratio348/911LINE DOUBLER ADAPTED FOR REPRODUCING PROGRAM ORIGINALLY FROM FILM (E.G., 24 FRAME PER SECOND)
ExaminersPrimary: Groody, James J.
Assistant: Burgess, Glenton B.
Attorney, Agent or Firm
Foreign Patent References
International ClassesH04N 005/46
AbstractAn audio/video production system facilitates professional quality image manipulation and editing using an enhanced general-purpose hardware. A program input may be translated into any of a variety of graphics or television formats, including NTSC, PAL, SECAM and HDTV, and stored as data-compressed images, using any of several commercially available methods such as Motion JPEG, MPEG, etc. While being processed, the images may be re-sized to produce a desired aspect ratio or dimensions using conventional techniques such as pixel interpolation. Frame rate conversion to and from conventional formats is performed by using the techniques employed for film-to-NTSC and film-to-PAL transfers, or by inter-frame interpolation, all well known in the art. By judicious selection of the optimal digitizing parameters, the system allows a user to establish an inter-related family of aspect ratios, resolutions, and frame rates, yet remain compatible with currently available and planned graphics and television formats.
Field of SearchFORMAT CONVERSION
Conversion between standards with different aspect ratios
Including nonstandard signal detection
LINE DOUBLER ADAPTED FOR REPRODUCING PROGRAM ORIGINALLY FROM FILM (E.G., 24 FRAME PER SECOND)
For receiving more than one format at will (e.g., NTSC/PAL)
For format with different aspect ratio