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Telecommunications > Receiver Or Analog Modulated Signal Frequency Converter > Frequency Modifying Or Conversion > Plural Separate Successive Conversions Plural Separate Successive ConversionsPlural Separate Successive Conversions patent applications listed are from June 2005 to current and include Date, Patent Application Number, Patent Title, Patent Abstract summary and are linked to the corresponding patent application page.02/15/07 - 20070037543 - Multistage frequency conversion A receiver for frequency down converting a radio frequency signal (10) using a multistage frequency (down) conversion. The radio frequency signal (10) having a center frequency that is comprised in one of at least two frequency bands, comprises oscillating means (20) for generating a first mixing signal (11) having a ... 01/11/07 - 20070010229 - Frequency conversion circuit tuner adopting same and set-top box for receiving catv A low pass filter for removing a high harmonic wave of an local oscillation signal LO1 is provided between the first stage local oscillation circuit and a mixer circuit, and a cut-of frequency of the low pass filter changes in response to the frequency of the local oscillation signal LO1. ... 03/30/06 - 20060068743 - Receiver of double conversion system A receiver of double conversion system wherein unwanted components included in received signals can be removed without fail and wherein the number of constituent parts has been reduced. The receiver comprises an antenna tuning circuit 10 including a tuning coil 11 and a variable-capacitance diode 13; a high frequency amplification ... 12/08/05 - 20050272394 - Method and apparatus providing improved mixer performance for radio receivers A mixer circuit (50) includes a first switching mixer (20A) with a first desired signal input (RF+ and RF−), a first switching signal input (LO+& LO−), and a first output (IF+ and IF−), a second switching mixer (20B), and a third switching mixer (20C) with corresponding desired signal inputs, switching ... 10/06/05 - 20050221784 - Dual conversion receiver with reduced harmonic interference A dual conversion receiver selects and down-converts one channel from a plurality of channels in a received RF signal. The dual conversion receiver includes first and second mixer stages that are driven by first and second local oscillator signals. Channel selection is performed by tuning the first local oscillator signal ... ### FreshPatents.com Support |