Pulse or digital communications – Bandwidth reduction or expansion – Television or motion video signal
Reexamination Certificate
2007-12-21
2011-11-29
An, Shawn (Department: 2483)
Pulse or digital communications
Bandwidth reduction or expansion
Television or motion video signal
C375S240240, C375S240230, C375S240260, C382S237000, C382S245000, C382S246000, C382S247000, C382S166000
Reexamination Certificate
active
08068544
ABSTRACT:
Methods, medium, and machines which compress, enhance, encode, transmit, decode, decompress and display digital video images. Real time compression is achieved by sub-sampling each frame of a video signal, filtering the pixel values, and encoding. Real time transmission is achieved due to high levels of effective compression. Real time decompression is achieved by decoding and decompressing the encoded data to display high quality images. A receiver can alter various setting including, but not limited to, the format for the compression, image size, frame rate, brightness and contrast. In a Doppler improvement aspect of the invention, Doppler velocity scales are incorporated into grayscale compression methods using two bits. Variable formats may be selected and Doppler encoding can be turned on and off based on the image content. Frames or sets of pixels may be distinguished by automated analysis of the characteristics of an image, such as the presence of Doppler enhanced pixels.
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An Shawn
Schwabe Williamson & Wyatt P.C.
Zin Stai Pte. In, LLC
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