Appeal No. 1997-1240
Application 07/881,753
lants further disclose that the high definition processing
circuit 300 produces a pseudo HD
signal having attributes as shown in the table disclosed on
page 13 labelled column PSEUDO HD SIGNAL. In particular, the
table discloses that the pseudo HD signal has 1125 lines
versus
the ED signal having 525 lines. Furthermore, the pseudo HD
signal has an interlace ratio of 2:1 versus the ED signal of
1:1. Independent claim 1 is reproduced as follows:
1. A video signal recording and/or reproducing
apparatus for recording and/or reproducing a standard televi-
sion signal and a high definition television signal having a
broader band than that of the standard television signal,
comprising:
recording mode presetting means for presetting one
of a first recording mode in which said high definition
television signal is recorded and a second recording mode in
which said standard television signal is recorded;
interpolation and rate doubling processing means for
applying scanning line interpolation and rate doubling conver-
sion processing for the standard television signal to output a
double rate signal;
high definition processing means for applying to the
double rate signal outputted from said interpolation and rate
doubling processing means a scanning line conversion process-
ing to convert the double rate signal into a signal having a
3
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