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
Optical article including an antireflecting coating having antifog properties and process for making same
Point-of-sale server and method
Administrable compositions
High gradient lens for charged particle beam
Method for manufacturing and reoxidizing a TiN/Ta.sub.2O.sub.5/TiN capacitor
Drive apparatus
3,7-diamino-10H-phenothiazine salts and their use
  Randomly Featured Patents
Fusions of P-selectin ligand protein and polynucleotides encoding same
Low impedance connector
Apparatus for locating a vehicle electronic key
Solar powered flush valve for center pivot irrigation system
Magnetic head slider with resistance to debris accumulation
Motor drive device and electronic device that uses the same
Heat exchanger of ventilating system
Automated rod handling system
Infant safety hat
Touch driven method and apparatus to integrate and display multiple image layers forming alternate depictions of same subject matter