Full duplex communication system with power transfer on one pair of conductors
January 18, 2020. 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 3659277 Power line data transmission system System & method for monitoring & diagnosing faults in environmentally controlled containers, such system and method being especially adapted for remote computer controlled monitoring of numerous transportable containers over existing on-site power wiring Fail-safe condition sensing circuit Locally powered control system having a remote sensing unit with a two wire connection Information and control communication over power lines Patent #: 6281784 InventorsAssigneeApplicationNo. 484631 filed on 01/18/2000ExaminersPrimary: Trieu, Van T.Foreign Patent References
International ClassH04M 011/04AbstractA local station and a remote station are connected by a single pair of conductors. The local station communicates with the remote station by modulating a power supply within the local station which provides power on the conductor pair for operating the remote station. The remote station modulates its impedance, causing a change in current flow on the conductor pair which the local station can detect. In this way both stations can transmit data to each other at the same time and while the local station is providing operating power to the remote station. | |
