Appliance system
Patent 4703306 Issued on October 27, 1987. Estimated Expiration Date: 
September 26, 2006. 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.
September 26, 2006. 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 3334340 Appliance remote touch-control panel with sound system Electronic multiple device control system Distributed control system Appliance control Appliance control system Control system for a combined appliance Patent #: 4510778 InventorAssigneeApplicationNo. 06/912779 filed on 09/26/1986US Classes:340/310.18, With coupling plug340/3.21, Time slot or packet340/3.54, Destination address340/3.71, Having manual control input340/310.16, Bi-directional (e.g., with transceiver)340/538, Combined with power line340/825.22Program controlExaminersPrimary: Crosland, Donnie L.Attorney, Agent or FirmInternational ClassesH04B 3/54 (20060101)G01R 31/28 (20060101) AbstractAn appliance system is provided having a plurality of appliances. A master controller includes the user-operable appliance controls as well as associated logic controls for controlling the operating components of the appliances. An interface control is physically associated with each controlled appliance and receives control signals for the various operating components from the master controller by way of power line transmission. The master controller effects a repeating sequence of transmitting and receiving control signals in the form of first and second data packages while the interface control effects a repeating sequence of receiving first data packages and transmitting second data packages. The interface control and the master controller will each interrupt operation of the appliances responsive to the absence of either first or second data packages. | |
