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
Driving voltage adjusting circuit capable of adjusting driving voltage via digital rheostat
Skeletal adjustment device
System and method for detecting loops for routing in a network environment
Screening machine
Copper foil for printed circuit and copper-clad laminate
Non-volatile memory devices including vertical NAND channels and methods of forming the same
Restraining glove
  Randomly Featured Patents
Method and apparatus for managing the flow of data within a switching device
Guitar
Method for separating sapphire wafer into chips using dry-etching
Apparatus for continuous steelmaking
Process for the crystallization of (R)- or (S)-lansoprazole
Device for laser welding motor-vehicle bodies
Method to facilitate processing of three dimensional substrates
Memory card control chip
Illumination device and display apparatus including the same
Semiconductor cathode with increased stability