Line-sequential pyramid processing of a plurality of raster-scanned image variables
May 6, 2008. 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 ReferencesTriangle and pyramid signal transforms and apparatus Real-time hierarchal pyramid signal processing apparatus Multiplexed real-time pyramid signal processing system Filter-subtract-decimate hierarchical pyramid signal analyzing and synthesizing technique Modified statistical coding of digital signals Scanning techniques using hierarchical set of curves HDTV Sub-band coding using IIR filter bank Patent #: 4918524 InventorApplicationNo. 190905 filed on 05/06/1988US Classes:375/240.12, Predictive382/302Multilayered image transformationsExaminersPrimary: Kostak, Victor R.Attorney, Agent or FirmInternational ClassH04N 007/12AbstractA plurality of raster-scanned image variables are time-compressed and time-division multiplexed on a line-sequential basis for pyramid analysis. The resulting differential pulse code modulation is statistically encoded and assembled together with digital audio code and synchronizing code. The assembler supplies a serial stream of bits to a transmitter. Receiving apparatus for a video teleconferencing station includes a receiver complementary to the transmitter and a parser for separating digital codewords. Those codewords that are statistical codes descriptive of differential pulse code modulation of video are demodulated. The demodulation results are formatted for a pyramid synthesizer. The stream of samples provided as output signal from the pyramid synthesizer is time-division demultiplexed and time expanded to recover the plurality of raster-scanned image variables.Other References
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