Patent ID: 6404288
Filing Date: 2002-06-11
Classification: G04G,H03L

Abstract:
An arrangement for generating a first alternating signal and a second alternating signal that is in a predetermined, fixed frequency relation to the first signal, with a first resonator (1), a second resonator (2) and a third resonator (3); in this connection, the first resonator (1) delivers an oscillation signal corresponding to its oscillation frequency to a first digital frequency divider (4) which generates the first signal from this, and delivers an oscillation signal corresponding to its oscillation frequency to a second digital frequency divider (5) which generates a first synchronization signal from this; the second resonator (2) delivers an oscillation signal corresponding to its oscillation frequency to a third digital frequency divider (6) which generates a second synchronization signal from this and delivers an oscillation signal corresponding to its oscillation frequency to a fourth digital frequency divider (7) which generates a third synchronization signal from this; the third resonator (3) delivers an oscillation signal corresponding to its oscillation frequency to a fifth digital frequency divider (8) which generates a fourth synchronization signal from this and delivers an oscillation signal corresponding to its oscillation frequency to a sixth digital frequency divider (9) which generates the second signal from this, in connection with which the first synchronization signal and the second synchronization signal are fed to a first phase indicator (10) which, depending on the phase difference between the first synchronization signal and the second synchronization signal, emits a voltage to a first voltage-controlled oscillator (11) which adjusts the second resonator's (2) oscillation frequency in such a way that it is in a predetermined relation to the oscillation frequency of the first resonator (1), and the third synchronization signal and the fourth synchronization signal are fed to a second phase indicator (12) which, depending on the phase difference between the third synchronization signal and the fourth synchronization signal, emits a voltage to a second voltage-controlled oscillator (13) which adjusts the third resonator's (3) oscillation frequency in such a way that it is in a predetermined relation to the oscillation frequency of the second resonator (2).