Resources Contact Us Home
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
Cytokine biomarkers as predictive biomarkers of clinical response for Glatiramer acetate
Bit error mitigation
High electron mobility transistor and manufacturing method thereof
Monitoring apparatus for monitoring communication configurations of client devices
Extensible framework for client-based active network measurement
Decision management system and method
Methods of forming activated carbons
  Randomly Featured Patents
Metering and dispensing assembly
Process for producing ink jet recording head
Television receiver for accessing switched broadband networks
Disc drive servo system employing thermal signals
Integrated circuit package-on-package system with anti-mold flash feature
Streaming metatree data structure for indexing information in a data base
Endpoint and method for displaying of SSSP and non-SSSP information
Dispensing closure for pourable material