Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
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
Method and system for leveraging the power of one's social-network in an online marketplace
Methods and apparatuses for anti-shading correction with extended color correlated temperature dependency
Radio communication system, base station apparatus, terminal apparatus, and radio communication method for radio communication system
Bi-directional, compact, multi-path and free space channel replicator
Control service for relational data management
Electronic control apparatus
Housing for gas flow indicator
  Randomly Featured Patents
Image detail improvement in a vertical detail enhancement system
System and method to reduce the aerodynamic force on a vehicle
Ultra-wideband communication apparatus and methods
Pouch assembly for use in a container
Pylon assembly for leg prosthesis
Ruthenium(II)-BINAP diketonate complexes
Method and apparatus for the production of crystalline silicon substrates
Decoration lighting fixture
Wheelchair coupler apparatus
Process for the preparation of 4,4'-diaminostilbene-2,2'-disulphonic acid