Patent ID: 6192085
Filing Date: 2001-02-20
Classification: H04L

Abstract:
Circuit arrangement with a data sequence generator (D) for generating an oscillator signal (sin a) as a sequence of digital data, wherein there isa first multiplication unit (M1) driven by a first auxiliary signal (h1) and a first control signal (sin c), where the first control signal (sin c) corresponds to the sine of a manipulated variable (c) that determines the frequency of the oscillator signal (sin a),a second multiplication unit (M2) driven by a second auxiliary signal (h2) and a second control signal (cos c), where the second control signal (cos c) corresponds to the cosine of the manipulated variable (c),a third multiplication unit (M3) driven by a third auxiliary signal (h3) and a third control signal (sin c+cos c), where the third control signal (sin c+cos c) corresponds to the sum of the first and second control signals (sin c, cos c),a first adding unit (A1) driven by the first multiplication unit (M1) and third multiplication unit (M3),a second adding unit (A2) driven by the first multiplication unit (M1) and the second multiplication unit (M2),a first time-delay unit (T1) driven by the first adding unit (A1), where the oscillator signal (sin a) is provided as third auxiliary signal (h3) at the output of the first time-delay unit (T1),a second time-delay unit (T2) driven by the second adding unit (A2), where the second auxiliary signal (h2) is provided at the output of the second time-delay unit (T2),a weighting unit (G) for weighting the third auxiliary signal (h3) with a factor of 2,a third adding unit (A3) driven by the second time-delay unit (T2) and the weighting unit (C), where the first auxiliary signal (h1) is provided at the output of the third adding unit (A3).