Patents Assigned to Alcatel Mobile Commuication France
  • Patent number: 5732339
    Abstract: In a method and a device for correcting a frequency offset between a receive signal and a reference signal, the receive signal, being fed to a frequency converter which also receives a conversion signal in order to produce a transposed signal, the conversion signal is produced by a local oscillator in response to a control signal. The device initializes the control signal according to the reference signal. An estimator receives the transposed signal and the control signal and produces repetitively an estimate of the frequency offset comprising the sum of a correction value and an adjustment value respectively greater than and less than a predetermined correction threshold. The control signal is modified in response to the correction value. The transposed signal is connected using at least one of the successive estimates.
    Type: Grant
    Filed: October 20, 1995
    Date of Patent: March 24, 1998
    Assignee: Alcatel Mobile Commuication France
    Inventors: Gerard Auvray, Olivier Perron