1.   It will need different microchips to reconvert the digital code back into normal TV signals.

2.   The signal will be converted into digital code.

3.   Reproducing a smooth waveform in digital code requires a very high rate of sampling every second, particularly if the wave is complex with many different component frequencies.

4.   And it is analog circuitry in the CD player that turns the digital code back into an electronic speaker signal that a human ear can hear.

5.   At issue are products like computer software, music and videos that can be turned into digital code and downloaded by customers anywhere.

6.   A digital code on the disc tells the recorder that the royalty was paid.

7.   But in an information economy, in which entire business models can be embedded in digital code, attempts to use patents as competitive weapons have intensified.

8.   But most purchases cannot be reduced to digital code.

9.   Compact discs store data in digital code, and lasers in compact disc players read the data.

10.   Content is something intangible, converted into digital code, and posted on an Internet site.