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AssigneeMotorola, Inc.
InventorsMoshe Ben-Ayun, Izak Avayu, Mark Rozental
Estimating the term…
In accordance with the present invention there is those provided a Cartesian loop transmitter having an isolator eliminator circuitry comprising a set of low pass and wide band pass as well as narrow band pass filters for each of I- and Q-channels, root mean square detectors and dividers connected to a means for comparing. Signals from said means for comparing are received by a microprocessor which controls attenuation setting. There is also provided a method of adjusting an output level of such transmitter. Said method comprises the step of generating a small signal measuring an on-channel signal level and said small signal level and then calculating a first ratio of said small signal to said on-channel signal. If said first ratio exceeds a defined threshold said attenuation setting is increased.
A Cartesian loop transmitter having a forward path and a feedback path, each of these paths comprising an I-channel and a Q-channel, as well as an isolator eliminator, said transmitter comprising:
A method of adjusting an output level of a Cartesian loop transmitter in a digital radio system, the method comprising the steps of:
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Dependencies are inferred from the claim text.