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Telecommunications > Receiver Or Analog Modulated Signal Frequency Converter > Signal Selection Based On Frequency (e.g., Tuning) Signal Selection Based On Frequency (e.g., Tuning)Signal Selection Based On Frequency (e.g., Tuning) 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.04/06/06 - 20060073798 - Tuner A single conversion tuner comprises an image reject downconverter and a plurality of tracking RF bandpass filters ahead of the downconverter for providing image rejection. The downconverter comprises first and second mixers which mix the signal from the filters with quadrature commutating signals from a commutating signal generator. The mixer ... 03/30/06 - 20060068728 - A technique of detecting the propagation environment of radio wave In a detector device 10 of the invention, a wave detection module 20 receives and detects radio wave in a predetermined frequency band, which is used by a target wireless communication device for telecommunication. An extraction module 30 extracts a pattern representing a time-series variation in presence or absence of ... 07/07/05 - 20050148309 - Automatic tuning apparatus for filter and communication instrument Purposes to offer an automatic tuning apparatus for filter which enables an accurate tuning to be attained and is small size and low power consumption and a communication instrument using the above. The automatic tuning apparatus for filter of the present invention has an input terminal; a reference signal generator, ... 06/23/05 - 20050136870 - Technique for determining a tuning frequency of an audio receiver A technique for determining a tuning frequency of an audio receiver includes interrupting a received radio frequency (RF) signal at an input of the audio receiver. Next, a modulated audio signal is injected into the input of the audio receiver. Then, it is determined whether the demodulated audio signal is ... ### FreshPatents.com Support |