Patent ID: 8638174
Filing Date: 2014-01-28
Classification: H03B,H03M

Abstract:
1. A local oscillator signal generator for a mixer of a radiofrequency receiver, the signal generator comprising: a bit sequence generator having a plurality of parallel output lines; a digital signal generator having a serial output line, a plurality of input lines connected to respective output lines of the bit sequence generator, and a plurality of parallel to serial multiplexer modules, each multiplexer module configured to provide a serial output from a pair of parallel inputs; and a clock signal input line connected to the digital signal generator, wherein the digital signal generator is configured to provide an output bit sequence on the serial output line to the mixer at a rate given by a single-phase clock signal provided to the digital signal generator on the clock signal input line and a sequence given by a sequence of bits from the bit sequence generator on the plurality of input lines.