U.S. patents available from 1976 to present.
U.S. patent applications available from 2005 to present.

Communication system network interconnecting a plurality of communication systems

Patent 5175727 Issued on December 29, 1992. Estimated Expiration Date: Icon_subject April 16, 2010. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.

Patent References

Time division multiplex module for use in digital switching network
Patent #: 4392221
Issued on: 07/05/1983
Inventor: Hesketh

Communications systems
Patent #: 4546470
Issued on: 10/08/1985
Inventor: Naylor ,   et al.

Multichannel telephone system
Patent #: 4672657
Issued on: 06/09/1987
Inventor: Dershowitz

Mobile radio communications system with join feature
Patent #: 4682367
Issued on: 07/21/1987
Inventor: Childress ,   et al.

Articulated power-driven shopping cart
Patent #: 4771840
Issued on: 09/20/1988
Inventor: Keller

Method for dynamically regrouping subscribers on a communications system
Patent #: 4817190
Issued on: 03/28/1989
Inventor: Comroe ,   et al.

System for cooperatively reassigning duties in a multiple controller environment
Patent #: 4945355
Issued on: 07/31/1990
Inventor: Blanchette

Electronic exchange having a conference telephone communication function and conference telephone communication method Patent #: 5007049
Issued on: 04/09/1991
Inventor: Ohtsuka

Inventors

Application

No. 509915 filed on 04/16/1990

US Classes:

370/350, Synchronization370/327, In a trunking system370/423, Including a bus for interconnecting inputs and outputs455/508, Having console455/518Having talk group

Examiners

Primary: Olms, Douglas W.
Assistant: Kizou, H.

International Class

H04Q 011/04

Abstract

The present invention discloses a communication system network that comprises a plurality of communication systems and a processing multiplexer. The communication systems, which may be either conventional communication systems and/or trunked communication systems, transmit digitized audio signals and communication system data to the processing multiplexer. Based on signal destination data, which is part of the communication system data, the processing multiplexer processes the digitized signals and routes the resultant signals to the appropriate signal destinations of the communication systems.

PatentsPlus Images
Enhanced PDF formats
loading...
PatentsPlus: add to cart
PatentsPlus: add to cartSearch-enhanced full patent PDF image
$9.95more info
PatentsPlus: add to cart
PatentsPlus: add to cartIntelligent turbocharged patent PDFs with marked up images
$16.95more info
 
Sign InRegister
Username  
Password   
forgot password?