| 摘要 |
1. A device for adjusting the working point either of an electronic circuit including a local oscillator and a selectivity device constituted of a filter, tunable by means of "varipac"-diodes, or of an attenuator circuit using "PIN"-diodes, this circuit comprising n elements, each presenting a variable parameter whose value is determined by an electric control signal issued by memory means forming part of the control device, characterized in that, n being at least equal to three, the storage means include, on the on hand, a memory unit (3; 14) which is addressable by means of a single digital word (A) and contains digital words (C2 ... Cn ), each being equal to the difference (B2 -B1 ... Bn -B1 ) existing between the word (B2 ... Bn ) that represents the control signal of an element (B1 ) that represents the control signal of the first element, the number of bits of each of these difference words (C2 ... Cn ) being smaller than the number of bits of the corresponding word (B2 ... Bn ), and, on the other hand, n-1 adders (42 , 43 ... 4n ; 15, 16, 17) for producing the sums (C2 + B1 ... Cn + B1 ) of each digital difference word (C2 ... Cn ) and the word (B1 ) that represents the control signal of the first element.
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