A MICROPROCESSOR-BASED TELEPHONE CONTROLLER-INTERFACE
| dc.contributor.advisor | Dodds, D. E. | |
| dc.creator | Seto, Raymond Arthur | |
| dc.date.accessioned | 2024-08-14T19:35:06Z | |
| dc.date.available | 2024-08-14T19:35:06Z | |
| dc.date.issued | 1978-12 | |
| dc.date.submitted | December 1978 | |
| dc.description.abstract | Since their introduction in 1971, microprocessors have grown widely in usage throughout the electronics industry. Because of their "computer-like" structure, microprocessors can provide the basis for many different types of intelligent instruments and devices. Within the field of telephony there exists numerous applications for an intelligent "controller" that has the capability of taking in telephone signals, putting out telephone signals, and controlling external peripherals. However, the signal environment of a telephone line is analog in nature and susceptible to large induced voltages, thus making it incompatible with the digital logic signals and circuits of microprocessors. As a result, an interface must be provided between the controller and the telephone, both for the protection of the controller, and for the proper translation of signals. This thesis presents a prototype microprocessor-based controller and interface that was designed for multi-purpose usage on telephone lines and trunks. Considerations for such a device will be discussed in addition to the design that was actually implemented. The programming that was required to demonstrate some of prototype's capabilities will be described, and an evaluation of the system's performance will be made. To aid the reader, background information on the telephone system and some of the signals involved in its operation will also be provided. | |
| dc.identifier.uri | https://hdl.handle.net/10388/15903 | |
| dc.title | A MICROPROCESSOR-BASED TELEPHONE CONTROLLER-INTERFACE | |
| dc.type.genre | Thesis | |
| thesis.degree.department | Electrical Engineering | |
| thesis.degree.grantor | University of Saskatchewan | en_US |
| thesis.degree.level | Masters | |
| thesis.degree.name | Master of Science (M.Sc.) |