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
System and method for converting biomass to ethanol via syngas
Dual source mass spectrometry system
Tag-based apparatus and methods for neural networks
Encoding method and encoding device, decoding method and decoding device and transcoding method and transcoder for multi-object audio signals
Additives for oil recovery from reservoirs
Graphical communication user interface with graphical position user input mechanism for selecting a display image
Copolymer for positive type lithography, polymerization initiator used in production of said copolymer, and composition for semiconductor lithography
  Randomly Featured Patents
Elevator assembly for a projection device
Display screen with graphical user interface
Peptides for the treatment of herpes virus infections
Psyllium enriched pasta products and method for making same
5-speed, compound, epicyclic transmission having a pair of planetary gear sets
Moving picture server and method of controlling same
Method, apparatus and system for processing message bundles on a network
Mobile safety structure with separate compartments for containment and handling of hazardous materials
Electroplating of superconductor elements
Bathing suit with rear openings