"total war" effort through the spring and summer, but did not again seek a seat in the House of Commons. In September, Meighen called for a national party convention to "broaden out" the party's appeal. It remained unclear whether Meighen sought to have his leadership confirmed or to have his successor chosen. As the convention neared, news sources reported that Meighen had approached Manitoba's Liberal-Progressive Premier John Bracken about seeking the leadership, and that the convention would adopt a platform that would move the party toward acceptance of the welfare state. Meighen announced in his keynote address to the party on 9 December 1942 that he was not a candidate for the leadership and the party subsequently chose Bracken as leader, and renamed itself the Progressive Conservative Partyto vary an idling current to be supplied to the active element. The current signal provided from the photodetector is transferred at one of a first transfer rate and a second transfer rate which is slower than the first transfer rate, the idling current to be supplied to the active element has one of a first current (Ic1) and a second current (Ic2) which is smaller than the first current (Ic1). The method comprises detecting the transfer rate of the data, and setting the idling current to the first current (Ic1) when the current signal from the photodetector is transferred at the first transfer rate, or setting the idling current to the second current (Ic2) when the current signal from the photodetector is transferred at the second transfer