Video signal encoded with additional detail information
Patent 5031030 Issued on July 9, 1991. Estimated Expiration Date: 
August 20, 2010. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
August 20, 2010. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent References 2716151 Television transmission system Television signal transmission system Method for transmitting a television signal by field to field processing High resolution color television signal transmission system and receiver utilizing motion information of a picture Patent #: 4885631 InventorAssigneeApplicationNo. 570260 filed on 08/20/1990US Classes:348/427.1, Including frequency folding (e.g., subsampling)348/436.1Including use of a subcarrierExaminersPrimary: Chin, Tommy P.Attorney, Agent or FirmForeign Patent References
International ClassesH04N 011/14H04N 007/08 AbstractIn a system for encoding and decoding high frequency video information, an input video signal includes a high frequency band containing information to be encoded, and a lower frequency band. The frequency spectrum of the input video signal is folded around a frequency in the lower frequency band. A resulting folded video signal is combined with the input video signal to produce a combined signal which is low pass filtered by a filter having a cut-off frequency corresponding to the folding frequency. The filtered combined signal is separated into its constituent filtered video signal and filtered folded video signal parts. The separated folded video signal component is unfolded around the folding frequency to produce an unfolded video signal with frequencies in the high frequency band. The unfolded video signal is joined to the high frequency band of the separated video signal to produce an output video signal having a high frequency band with the uppermost frequencies thereof determined primarily by the unfolded video signal.Other References
| |
