Patent ID: 7782925
Filing Date: 2010-08-24
Classification: H04B

Abstract:
1. An ultra wideband direct sequence code division multiple access (UWB DS-CDMA) transmitter, comprising: a first multiplier receiving two input signals, where the input signals are selected from a multi-level code signal, a transmit data signal, and a radio frequency (RF) center frequency signal, and responsive to the two input signals, generating a combined signal; a first network receiving a code-clock signal aligned with the multi-level signal, multiplying the frequency of the code-clock signal by a first factor, and responsive thereto, producing the RF center frequency signal; a second multiplier receiving the combined signal and the other of the input signals, and responsive thereto, generating an output signal; and a second network receiving the code-clock signal, multiplying the frequency of the code-clock signal by a second factor, and responsive thereto, producing a data-clock signal aligned with the transmit data signal.