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Telecommunications > Receiver Or Analog Modulated Signal Frequency Converter > With Particular Receiver Circuit > Coupling Or Decoupling Between Stages > Band Pass Filter Band Pass FilterBand Pass Filter 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.11/30/06 - 20060270379 - Bandpass filter with carrier frequency reduction A bandpass filtering method in which two frequency transpositions are performed in parallel on an input signal (SE) for filtering using respective first and second upstream mixing signals (SM1, SM2). A common oscillator (LO) is used which is coupled with a first phase shifter (MTM) to produce upstream mixing signals ... 11/30/06 - 20060270378 - Low noise block downconverter A low noise block downconverter. The low noise block downconverter comprises a low noise amplifier (LNA), an RF band pass filter, a mixer, a local oscillator, a harmonic filter, and a low pass filter. The low noise amplifier receives an RF input signal. The RF band pass filter is coupled ... 11/16/06 - 20060258321 - Receiver system A conventional receiver system has a filter circuit with unsatisfactory gain characteristics, and thus does not offer satisfactory reception performance. A receiver system of the invention has a filter circuit employing an equivalent inductor circuit including a capacitor, a gyrator composed of a plurality of operational transconductance amplifiers and having ... 10/05/06 - 20060223485 - Tracking filter for selecting channel of wideband frequency The present invention relates to a filter, and more particularly, to a tracking filter for selecting a channel of a wideband frequency. The tracking filter for selecting a channel of a wideband frequency, which is for increasing the selectivity of a wideband frequency, includes: a first tracking portion for filtering ... 09/21/06 - 20060211399 - Gps rf front end ic with frequency plan for improved integrability A GPS RF Front End IC using a single conversion stage, which is immune from self jamming from clock signal harmonics generated internally or from dominant clock signal harmonics generated externally by the subsequent baseband GPS processor which uses a clock of 48•fo for GPS processing. The improved frequency plan ... 08/31/06 - 20060194563 - Programmable surface acoustic wave filter A programmable surface acoustic wave filter and methods thereof including a piezoelectric substrate, a ground electrode formed in a comb structure on the piezoelectric substrate, a plurality of output electrodes formed in comb structures on the piezoelectric substrate and alternately disposed together with the ground electrode, and a switching unit ... 07/27/06 - 20060166639 - Superheterodyne circuit with band-pass filter for channel selection A superheterodyne circuit includes at least one reception input, at least one production output wherefrom can be produced a baseband signal and at least one band-pass filter for channel selection interposed in the signal path between the input and the output. The filter is adapted to be connected to elements ... 03/30/06 - 20060068749 - Low noise filter for a wireless receiver A low noise filter is arranged to receive an input signal from a downconverter. The low noise filter is constructed to block or cancel any DC offset in the input signal, as well as filter selected frequency components from the input signal. The low noise filter uses a shared capacitor ... 03/09/06 - 20060052076 - Sample rate adaption in signal processing The mixed signal chip (10) takes analogue signals received at, for example, a mobile telephone and converts them to the digital domain for subsequent processing. Through use of sample rate adaption and adjustable filtering, the mixed signal chip can work on radio signals formatted according to different standards. ... 03/02/06 - 20060046682 - Dual-band bandpass filter A dual-band bandpass filter having a first pass band and a second pass band respectively corresponding to a first frequency and a second frequency. The filter includes a first pair of resonators, a second pair of resonators and a first coupling element. The first pair of resonators includes a first ... 02/16/06 - 20060035620 - System for adaptively filtering a received signal in a wireless receiver An adaptive band-pass filter for a wireless receiver comprises a band-pass filter associated with the receiver, the band-pass filter configured to selectively filter the received signal, and a switch responsive to a control signal, the switch configured to control the band-pass filter based on a level of the received signal. ... 12/29/05 - 20050287977 - Finline type microwave band-pass filter The present invention relates to a FINLINE type microwave band-pass filter comprising a waveguide provided with an insulating substrate placed in an E plane of the guide and comprising on at least one of the surfaces, conductive inserts electrically connected to the internal surfaces of the guide which support the ... 11/17/05 - 20050255824 - Surface acoustic wave filter element, surface acoustic wave filter and communication device using the same A surface acoustic wave filter element has a piezoelectric substrate; and a plurality of inter-digital transducer (IDT) electrodes formed on the piezoelectric substrate, wherein at least one of the plurality of IDT electrodes is connected to a balanced type terminal and other IDT electrodes are connected to balanced type terminals ... 11/10/05 - 20050250467 - Unconditionally stable filter An unconditionally stable on-chip filter includes a filtering section and at least one negative resistance module. The filtering section is operably coupled to filter a signal and includes realizable integrated circuit passive components. The at least one negative resistance module is operably coupled to compensate for integrated circuit losses of ... 10/20/05 - 20050233725 - Image reject filtering in a direct sampling mixer Disclosed are methods, circuits and systems for image reject filtering in a multi-tap direct sampling mixer (MTDSM) of an IF or RF system. Disclosed is the use of rotating capacitors among the in-phase and quadrature branches of a signal processing system. The exchange of information among the branches of the ... 10/06/05 - 20050221789 - Bandpass filter with integrated variable gain function using improved resistor array The invention enables a gain adjustment in a receiver to improve signal quality by varying resistance of an input resistor array of a bandpass filter, the array having a plurality of resistors in series with switches that out of the path of the current when the resistors are in use. ... 10/06/05 - 20050221788 - Bandpass filter with integrated variable gain function The invention enables a gain adjustment in a receiver to improve signal quality. ... 07/07/05 - 20050148312 - Bandpass filter with tunable resonator A tunable bandpass filter is provided that comprises a first shunt-connected ferroelectric (FE) tunable tank circuit having a first node to accept an input signal. A second shunt-connected FE tunable tank circuit has a second node to supply a bandpass filtered signal. A first capacitor is connected in series between ... ### FreshPatents.com Support |