Digital processing of PAL color television signals in the form of a Y signal and a composite U+V/U-V signal
Method and system for transmitting and/or recording color T.V. signals
Method and system using sequentially encoded color and luminance processing of video type signals to improve picture quality
Color slow scan video signal translation Patent #: 4516151
ApplicationNo. 06/569434 filed on 01/09/1984
US Classes:348/489, Time division multiplexing of luminance and chrominance (e.g., MAC)348/491Simultaneous and sequential (e.g., SECAM)
ExaminersPrimary: Shepperd, John W.
Attorney, Agent or Firm
International ClassesH04N 9/797 (20060101)
H04N 9/82 (20060101)
H04N 9/83 (20060101)
H04N 9/81 (20060101)
H04N 11/08 (20060101)
H04N 11/06 (20060101)
AbstractA method and system for reconstruction of chroma component segments in a line sequential chroma format television system. Filtering of a received line sequential chroma signal is employed to reconstruct missing chroma components and to attenuate phantom frequency components greater than one half the spatial sampling rate. Digital and analog filters are disclosed for implementation of such post filtering. The luminance component of the line sequential signal is delayed at the transmitter to synchronize the reconstructed chroma segment with its corresponding luminance segment with the use of minimal hardware at the receiver. Horizontal offset chroma sampling is used along with such post filtering to decrease transmission bandwidth requirements without sacrificing horizontal resolution at the receiver.