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
Epitaxial substrate for electronic device, in which current flows in lateral direction and method of producing the same
Charged-particle beam lens
System and method for managing a loyalty program via an association network infrastructure
Integrating map-reduce into a distributed relational database
Gate timing for short servo wedge in disk memory systems
Controller
Business flow processing method and apparatus
  Randomly Featured Patents
Sofa convertible into bed
Substrate plating method and apparatus
Antitumor antisense oligonucleotides
Method for cladding a wire-shaped steel element with an aluminum coating, as well as aluminum-coated wire-shaped steel element
Porous carbonaceous material
Intermodal phase difference controller for beam angle modulation in index guided semiconductor devices
Method for making hydrogen using a gold containing water-gas shift catalyst
Vision comparison inspection system graphical user interface
Device for controlled deflection of a light beam
Releasing fragrances into the air