Appeal No. 1996-3324
Application No. 08/132,969
The disclosed invention relates to a D/A converting
apparatus for converting a digital signal into an analog
signal. More particularly, Appellant indicates at pages 2 and
3 of the specification that the outputs of additional D/A
converters are connected to the maximum and minimum reference
voltage inputs, respectively, of the main D/A converter.
According to Appellant, the above arrangement allows the
output range of the main D/A converter to be determined in a
digital fashion.
Claim 1 is illustrative of the invention and reads as
follows:
1. A D/A converting apparatus for converting a digital
signal into an analog signal, comprising:
a first D/A converter for converting said digital signal
as a first digital signal into said analog signal as a first
analog signal, the output range of said first analog signal
being determined by a second and a third analog signal as
reference signals input to said first D/A converter;
a second D/A converter for converting a second digital
signal into said second analog signal, the output range of
said second analog signal being determined by two reference
signals input to said second D/A converter; and
a third D/A converter for converting a third digital
signal into said third analog signal, the output range of said
third analog signal being determined by two reference signals
input to said third D/A converter; and wherein
2
Page: Previous 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 Next
Last modified: November 3, 2007