John Paul Porter
Engineering in Fort Worth, TX
License number
Louisiana PE.0018700
Issued Date
Mar 18, 1980
Expiration Date
Mar 31, 2008
Category
Civil Engineer
Type
Mechanical Engineer
Address
Address
Fort Worth, TX 76116
Professional information
Method And Apparatus For Digitally Controlling Gain In A Talking Path
US Patent:
5473666, Dec 5, 1995
Filed:
Sep 11, 1992
Appl. No.:
7/944204
Inventors:
Edward J. Szczebak - Plano TX
Chris A. Balthrop - Dallas TX
Patricia K. Mutzabaugh - Garland TX
John M. Porter - Fort Worth TX
Gary D. Stewart - Dallas TX
Chris A. Balthrop - Dallas TX
Patricia K. Mutzabaugh - Garland TX
John M. Porter - Fort Worth TX
Gary D. Stewart - Dallas TX
Assignee:
Reliance Comm/Tec Corporation - Bedford TX
International Classification:
H04M 124
US Classification:
379 3
Abstract:
A processor controlled test set is disclosed for testing special service circuits of a telecommunication system. A microprocessor controls the overall operation of the test set, while a digital signal processor provides high speed timing signals to the various test circuits for generating the wave forms used in testing, as well as analyzes the test result signals that are converted into digital signals. A calibration of the test generator signals as well as the signal measuring path is carried out prior to the test sequence. The digital signal processor also provides gain control over a talking path to maintain stability thereof. An I/O circuit of the test set provides plural communication paths between remote equipment and the test set to initiate and carry out various tests. Processors in the I/O module are effective to convert the various protocols of the serial data, by way of software, to digital bit streams usable by the test set.