Appeal No. 97-3082
Application No. 08/650,023
claims 2, 3 and 5 have been cancelled.
The invention is directed to providing a bandgap voltage
in low voltage submicron CMOS technology so as to provide a
bandgap reference voltage that will operate at reduced power
supply voltages and can be referenced to a power supply
terminal.
Independent apparatus claim 1 is reproduced as follows:
1. A CMOS circuit for providing a current having a
positive temperature coefficient, the circuit comprising:
CMOS parasitic P-N junction means for generating a delta
voltage having a positive temperature coefficient;
CMOS differential amplifying means responsive to said
delta voltage for providing differential currents; and
summing means responsive to said differential currents
for providing a resulting current at an output of said summing
means, said current having a positive temperature coefficient,
and a feedback connection absent between said output of said
summing means and said CMOS parasitic P-N junction means.
The examiner relies on the following reference:
Cave et al. (Cave) 5,087,830 Feb. 11,
1992
Claims 1 and 4 stand rejected under 35 U.S.C. § 112,
second paragraph, as being vague and indefinite for relying on
a negative limitation, “a feedback connection absent” or
“without using feedback.” Claims 1 and 4 stand further
2
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