Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Tuner for reception of a broadband radio frequency signal










Image Number 3 for United States Patent #7236760.

A tuner is provided for selecting a channel from a broadband radio frequency input signal containing a plurality of channels, such as a terrestrial broadcast signal. The tuner has an input which supplies the broadband signal to a filter. The output of the filter is connected to a mixer of a single frequency changer, which converts the selected channel to a predetermined non-zero intermediate frequency. The filter is a tracking radio frequency filter which tracks the frequency of the selected channel so as to attenuate the image channel. A controller receives from a demodulator a signal representing reception quality, such as bit error rate, and adjusts the tracking of the filter so as to achieve acceptable reception quality, such as an adequately low bit error rate. Alignment of the filter during manufacture is not, therefore, required.








 
 
  Recently Added Patents
Systems and methods for printing images outside a normal color gamut in image forming devices
Negative electrode material for non-aqueous electrolyte secondary battery, method for manufacturing negative electrode material for non-aqueous electrolyte secondary battery, non-aqueous elect
Email certificates
Grip for a racket
Non-aqueous solution process for the preparation of cross-linked polymers
Remote management of networked systems using secure modular platform
Analyte assaying by means of immunochromatography with lateral migration
  Randomly Featured Patents
Semiconductor integrated circuit structure with insulative partitions
Polymer mixture comprising aromatic polycarbonate, polybutylene terephthalate and polyalkylene glycol
Controlling communications with proximate avatars in virtual world environment
Leakage flux shielding structure of disk unit
Three dimensional piece alignment game
Salient pole rotor for a dynamoelectric machine
High tear strength film
Thermodynamically stabilized conductor/compound semiconductor interfaces
Ball joint
Electroconductive thick film composition(s), electrode(s), and semiconductor device(s) formed therefrom