Appeal No. 1999-1895
Application No. 08/363,315
Appellants increase the speed of transmission without
increasing the bit error rate by dividing the incoming k-bit
signal into n k/n-bit signals. Claim 5 is illustrative of the
claimed invention, and it reads as follows:
5. A transmitting apparatus comprising:
converting means for converting a data signal to be
transmitted to a k-bit parallel signal, where k is a
predetermined integer equal to the value of 2 or greater;
encoding means for mapping each of k/n-bit signals to the
signal point locations of a predetermined modulation scheme to
output n encoded signals, the k/n-bit signals being obtained
by dividing the k-bit parallel signal into n parts, where n is
a predetermined integer equal to the value of 2 or greater;
first phase shifting means for causing a phase difference
of B/2 between any two encoded signals adjacent to onen
another among the n encoded signals;
spectrum spreading means for spreading each of the n
encoded signals having said phase difference to output n
spectrum spread signals;
combining means for combining the n spectrum spread
signals to generate a digital transmission signal; and
radio transmission means for transmitting a transmission
wave based on the digital transmission signal.
The prior art reference of record relied upon by the
examiner in rejecting the appealed claims is:
De Gaudenzi et al. 5,327,455 Jul. 05, 1994
(De Gaudenzi)
2
Page: Previous 1 2 3 4 5 6 7 8 9 10 Next
Last modified: November 3, 2007