Publications

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Use of Frequencies Above 10 GHz for Common Carrier Applications

DEVOTED TO THE SCIENTIFIC AND ENGINEERING ASPECTS OF ELECTRICAL COMMUNICATION July-August 1969 American Telephone and Use of Frequencies Above 10 GHz for Common Carrier Applications By LEROY C.

Use of GPS to Synchronize the AT&T National Telecommunications Network

Presently, AT&T synchronizes its national networks using analog signals derived from a single cesium clock ensemble having a precision of a few parts in 10 sup -12.

Use of ion implantation to facilitate the discovery and characterization of ferromagnetic semiconductors

The discovery of epitaxially grown ferromagnetic, type III-V semiconductors (Ga,Mn)As (T-c=110 K) and (In,Mn)As (T-c=35 K) holds promise for developing semiconductor electronics that utilize the el

Use of Labor-saving Apparatus in Outside Plant Construction Work

I N the January issue of this Journal was discussed the adaptation of transportation equipment to telephone construction and maintenance work.

Use of Linear Extrapolation Based Linear Predictive Cepstral Features (LE-LPCC) for Tamil Speech Recognition

A new method, named linear prediction with linear extrapolation has been proposed in the past, which aims at modifying conventional linear prediction especially for speech coding applications.

Use of Low Cost Plastic Dips and Injection Molded Parts in Packaging Optical Data Links

A new, low cost version of the ODL(R) 125 Optical Data Link has been developed in response to market needs.

Use of Machine Vision in the Manufacture of Lightwave Devices (NOT PUBLISHED)

Machine vision has been successfully used in the manufacture of short- haul transmitter and detector devices.

Use of Motion from Orthographic Projections to Prune 3-D Point Matches.

A new method for pruning 3-D point matchings is presented in this paper. The method is specially designed to handle cases where point data are embedded with large depth errors.

Use of Oxynitride Dielectric to Maximise the Growth Rate of Selective Epitaxial Base Layer in a Self-Aligned Double-Polysilicon SiGe Bipolar Transistors

First Page of the Article

Use of Public Address System with Telephone Lines

The combination of the public address system and the telephone lines makes it possible for a speaker to address, simultaneously, audiences located at a number of different places.