Patents Assigned to Azea Networks, Ltd.
  • Adaptive pulse shape control
    Publication number: 20060210210
    Abstract: A method, apparatus, and computer program product are provided for optimising the pulse shape of optical signals output from an optical transmitter. The optical transmitter includes an optical modulator controlled by a bias voltage and a signal drive level, wherein the bias voltage and signal drive level are controlled automatically in a systematic way in dependence on one another to adapt the pulse shape of an optical output signal for optimal transmission over a transmission line.
    Type: Application
    Filed: March 7, 2006
    Publication date: September 21, 2006
    Applicant: Azea Networks Ltd
    Inventors: Stephen Webb, Richard Oberland
  • Bit error rate performance estimation and control
    Publication number: 20060200710
    Abstract: There is provided a method and system for obtaining an enhanced estimate of bit error rate performance. A receiver module counts a predetermined number of bit errors and concurrently measures the time taken for the predetermined number of bit errors to occur. In this way an estimate of the bit error rate (BER) is obtained which has the same statistical weight regardless of the numerical value of the BER. The estimate of BER can subsequently be used to optimise the parameters of the system such that the true value of BER is at a minimum.
    Type: Application
    Filed: March 4, 2005
    Publication date: September 7, 2006
    Applicant: Azea Networks, Ltd.
    Inventors: Stephen Webb, David Winterburn, Stephen Desbruslais