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
Method for configuring analog-to-digital converter keys and non-transitory machine readable medium storing program code executed for performing such method
Devices including composite thermal capacitors
Vehicle having power supply apparatus
Surfcraft fin
Vehicle headlight
Stereoscopic display
Sending targeted product offerings based on personal information
  Randomly Featured Patents
Method and apparatus for processing a physiological signal
Allene/alkyne copolymers
Moving corona discharging apparatus
Method of treating image-bearing lithographic plates
Process and apparatus for hydrolysis of proteins and peptides
Method and apparatus for selective hair depilation using a scanned beam of light at 600 to 1000 nm
GA 20-oxidase gene sequences
Method of enhancing clear field phase shift masks with border regions around phase 0 and phase 180 regions
Portable work station and data collection terminal including switchable multi purpose touch screen display
Dual spout dispensing nozzle