Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Channel selective repeater










Image Number 3 for United States Patent #5809398.

An improved repeater for receiving and re-transmitting radio signals for a cell in a cellular telecommunication system. The repeater raises the levels and is capable of converting the frequencies of the radio signals used in the telecommunication system. Due to the power amplifiers being provided between the channel selecting means and combiner, the power amplifier needs only to amplify one frequency band. In this way the repeater gets a simpler design, demands less maintenance, and gets a higher degree of efficiency in combination of high power capacity and generation of low levels only of intermodulation products.








 
 
  Recently Added Patents
Self cleaning rake
Geographically self-labeling access points
Reliability fire pressure switch
Extensible, filtered lists for mobile device user interface
Systems and/or methods for using air/wind power to charge/re-charge vehicle batteries
Control device for radiation imaging apparatus and control method therefor
Controller with screen
  Randomly Featured Patents
Magnetic recording medium
Method for efficient and zero latency filtering in a long impulse response system
Document retrieval of feature point groups using a geometrical transformation
Allocation of network resources
Low-profile axial-flow single-blade piezoelectric fan
Safety locking device
Autotransfusion apparatus
Prism
Spread spectrum communication apparatus
Method and apparatus for removing volatile contaminants from industrial plants