Resources Contact Us Home
Wireless prepaid telephone system with extended capability

Image Number 8 for United States Patent #6754481.

A telecommunication system incorporates individual station instruments simplified by wireless operation, voice dialing, prepaid accounting and out-call operation, all enabled by cooperative system operation including supporting central equipment. Wireless operation of the central equipment involves a multiple port wireless platform along with other units for interfacing a multitude of mobile station instruments simultaneously for interactive audio communication to, regulate control, monitor and record operations of the instruments, and bridge communication with selected remote terminals through the public switched telephone network. Message capability, emergency abort to an operator station and security features supplement the basic system.

  Recently Added Patents
Device to control force required to depress accelerator pedal
Wireless communication system, associated methods and data structures
Light emitting device
Evaluating programmer efficiency in maintaining software systems
System, method and program recording medium for supply capacity estimation
UV liquid treatment system
  Randomly Featured Patents
Belt module with oblong pivot hole
Spectroscopic detector and method for determining the presence of blood and biological marker substances in liquids
Light group for vehicle headlight
Method for increasing shelf-life of a serum conjugated bilirubin reference composition and composition produced thereby
Processing system and method for chemically treating a substrate
Switch voice/data service extension to remote facilities
Process for the purification of inert gases
Adjustable harmonic distortion detector and method for using the same
32142,21481,25964,21686, novel human dehydrogenase molecules and uses therefor