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Telecommunications > Receiver Or Analog Modulated Signal Frequency Converter > Frequency Modifying Or Conversion > With Specified Local Oscillator Structure Or Coupling With Specified Local Oscillator Structure Or CouplingWith Specified Local Oscillator Structure Or Coupling 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.02/01/07 - 20070026835 - Multiplier and radio communication apparatus using the same A multiplier includes a first input terminal which receives a modulated signal, three second input terminals which receive first, second, and third local signals respectively, the first, second, and third local signals having a phase difference of 120° from one another, a multiplication unit configured to multiply the modulated signal ... 11/30/06 - 20060270376 - Mixer circuit, receiver circuit, and frequency comparison circuit A mixer circuit contains a first terminal and a second terminal to which a first differential input signal is applied, and an active element switching a short-circuit between the first terminal and the second terminal. By driving the active element by a second differential input signal having a predetermined frequency, ... 07/27/06 - 20060166638 - High frequency receiving circuit provided with controller for turning on and off power supply to local oscillator A receiving circuit for receiving a high frequency signal is provided which includes a mixer, a local oscillator, a switch circuit, and a controller. The switch circuit switches over between first and second cases. The controller controls in the first case to turn on power supply to the local oscillator, ... 06/29/06 - 20060141974 - Low if mixer with improved selectivity performance A low IF mixer and method for down-converting a signal at a desired frequency are disclosed with improved selectivity performance. The energy of sidebands on each side of the desired frequency is evaluated; and a local oscillator frequency is selected based on the evaluation of the energy. Generally, the local ... 03/30/06 - 20060068744 - Controlling the frequency of an oscillator A technique includes selectively coupling impedances to an oscillator to establish a first frequency of operation of the oscillator. The technique includes repeating the selective coupling in a feedback loop to cause the first frequency to be near a second frequency. ... 01/12/06 - 20060009187 - Multi-mode interoperable mobile station communications architectures and methods A multi-mode mobile wireless communications device architecture (200) including an application layer (210), a services layer (220) interfacing the applications layer, a multi-mode layer (230) interfacing the service layer, and a hardware layer (240) interfacing the multi-mode layer. The multi-mode layer includes first and second interoperable radio access technologies, for ... ### FreshPatents.com Support |