cities. The system used a central transmitter that broadcast over the entire city. Because only one transmission at a time was permissible, system capacity was very limited. The solution to the capacity problem emerged in the 1960s, based on the concepts of cells and frequency reuse. The idea...
Both receiver 332 and transmitter 344 may be built into the set top terminal 220 itself or added through an upgrade module 300. Regardless of the specific hardware configuration, the set top terminal's data transmission capabilities may be accomplished using the hardware shown in FIG. 11. FIG....
and the signal that is used in the receiver is always the average of one line and the preceding line. If there has been a phase shift in the sub-carrier caused by conditions between the transmitter and the receiver, then subtracting the V signals of one line from the V signals of the ...
Horizontal crosstalk is eliminated by guardbands between horizontal pre-filters at the transmitter encoder and post-filters at the receiver decoder. Intraframe averaging is a form of paired (grouped) pixel processing. The process of intraframe averaging in the time domain is illustrated generally ...
23.A DTV transmitter device for inserting digital data into a digital television (DTV) broadcast signal, the DTV signal comprising a plurality of frames, each frame comprising a plurality of data segments, the DTV transmitter device comprising:means for encoding the digital data as codewords; and...