Display device

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2007-09-25

2007-09-25

Miska, Vit W (Department: 2833)

Horology: time measuring systems or devices

Displays or display device details

Optical

C331S057000, C345S055000, C345S098000

Reexamination Certificate

active

11700876

ABSTRACT:
An oscillator circuit includes (2n+1) inverters connected in series when n is a natural number, an integrator circuit having an input terminal connected to an output terminal of a (2n+1)-th inverter and an output terminal connected to an input terminal of a first inverter, first and second p-type transistors connected in series between the input terminal of the first inverter and a first reference potential, and first and second n-type transistors connected in series between the input terminal of the first inverter and a second reference potential. An output voltage of a j-th inverter is applied to control electrodes of the first p-type transistor and the first n-type transistor. An output voltage of a k-th inverter is applied to control-electrodes of the second p-type transistor and the second n-type transistor. Symbol j is an odd number, k is an even number, and j<k=2n is satisfied.

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patent: 2005/0110592 (2005-05-01), Lee
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