Resources Contact Us Home
Personal mobile communications system having central station for paging mobile users via base stations

Image Number 13 for United States Patent #5463672.

A personal mobile communications system comprises base stations (4-1.about.4-4) located in respective zones and a paging station (8) covering an area including the zones, or cells (5-1.about.5-4). The paging station and all base stations are connected to a public switched telephone network (PSTN). When a call is originated from a PSTN user (2) to a mobile user (10), the paging station receives a call-setup request from the PSTN containing the address codes of both PSTN and mobile users, and broadcasts the call-setup signal over the covered cells. One or more base stations (4-1.about.4-3) receive the call-setup signal and, in response, broadcast an alert signal. One of the base stations (4-2) receives an off-hook signal from the alerted mobile station (10) and dials the PSTN user address code contained in the call-setup signal to the PSTN to establish a connection (15; 147.about.149; 176.about.178) between the calling and called parties (2,10).

  Recently Added Patents
Markers of acute myeloid leukemia stem cells
System and method for reducing the risks involved in trading multiple spread trading strategies
Automated solar collector installation design including ability to define heterogeneous design preferences
Portable stand
Maize variety hybrid X13A495
Method and apparatus for controlling the use of data stored on a media sample
Magnetic reading and writing device
  Randomly Featured Patents
Methods and compositions for diagnosing carcinomas
Electro-mechanical indexing clutch & method
Fluoroalkyl- and fluoroalkoxy-substituted heterocyclic bradykinin antagonists, process for their preparation, and their use
Electronic graphic system
Computed tomography gantry rotor
Semiconductor integrated circuit device composed of insulated gate field-effect transistor
Trailer walker
Coated pipes and methods of making them
Device for forming on recording medium image corresponding to electronic mail
Control valve