Patent ID: 7737753
Filing Date: 2010-06-15
Classification: H03F

Abstract:
1. A device for adjusting or setting an electronic device ( 1 ) exhibiting at least one input for at least one external input signal and at least one output signal output, the value or the state of the output signal being a function of the value or of the state of said at least one input signal, comprising a memory circuit ( 9 ) for the value of an adjustment signal, linked to an adjustment input ( 10 ) of the electronic device; a circuit ( 11 ) for incrementing/decrementing said adjustment value stored in said memory circuit; and a switching circuit ( 12 ) for momentarily switching said at least one input ( 2 , 3 ) of the electronic device ( 1 ) to a predetermined state and for linking said output ( 6 ) of the electronic device ( 1 ) to said memory circuit ( 9 ) via said incrementing/decrementing circuit ( 11 ); said incrementing/decrementing circuit ( 11 ) being adapted for adjusting the value of said adjustment signal in such a way that, when said at least one input ( 2 , 3 ) of the electronic device ( 1 ) is switched to said predetermined state, the value or the state of said output signal tends to or attains a predetermined value or a predetermined state, characterized in that said incrementing/decrementing circuit comprises a charge pump ( 11 ) whose opposite elements ( 11 a , 11 b ) are linked to said signal output ( 6 a ) of the electronic device and to an output ( 6 b ) complementary thereto and whose common point ( 17 ) is linked to said adjustment input ( 10 ) of the electronic device and that said memory circuit comprises a capacitor ( 9 ) linked on the one hand to a ground and on the other hand to said common point ( 17 ) of said charge pump ( 11 ).