Loading patent…
AssigneeNorth American Philips Corporation
InventorsFaramarz Azadegan, Eberhard H. Fisch
Estimating the term…
A method and apparatus for digital encoding are described for compressing the augmentation channel signals (chrominance and luminance signals for panel information and high frequency luminance and line difference signal) so that this information can be transmitted in a 3 MHz wide RF channel using a digital transmission scheme such as QPSK. Analog signal components are sampled and converted to digital signals. Each of the signals is fed into a separate coder which reduces the number of bits/pixel required to reconstruct the original signal. Compression is achieved by quantization and removal of redundancy. The compression scheme is based on the use of DCT together with VLC. Each augmentation signal has its own coder, which is adapted to the unique statistics of this signal.
A method for digitally processing a high definition television (HDTV) signal comprised of a plurality of signal components, said method comprising the steps of:
An apparatus for digitally processing an HDTV signal comprised of a plurality of signal components, said apparatus comprising:
A system for transmitting a television signal, comprising:
A system for transmitting an HDTV signal wherein an HDTV source signal is divided into a conventional television signal and an augmentation signal and said augmentation signal comprises a plurality of digitized signal components, said system comprising:
A receiver for receiving a plurality of digitized components each representing respective signal components derived from a television signal and processed in a manner optimized for each of said respective components, said receiver comprising:
Dependencies are inferred from the claim text.