Remote control of dimmable electronic gas discharge lamp ballasts
December 10, 2002. 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 3706914 Apparatus for simulating the light produced by a fire Light control system Digital lighting control system Lighting control system Solid state electronic ballast system for fluorescent lamps Lamp intensity control apparatus comprising preset means Solid-state fluorescent lamp ballast Remote lighting-control apparatus Electronic ballast for gaseous discharge lamps Patent #: 4415839 InventorsAssigneeApplicationNo. 06/448538 filed on 12/10/1982US Classes:315/291, CURRENT AND/OR VOLTAGE REGULATION315/206, Discharge device and/or rectifier in the primary circuit of the supply transformer315/219, Periodic switch in the primary circuit of the supply transformer315/225, Periodic switch cut-out315/247, With power factor control device315/308Regulator responsive to plural conditionsExaminersPrimary: Chatmon, Saxfield Jr.Attorney, Agent or FirmInternational ClassesH05B 41/39 (20060101)H05B 41/392 (20060101) H05B 41/28 (20060101) H05B 37/02 (20060101) H05B 41/36 (20060101) H05B 41/282 (20060101) AbstractA remotely controlled dimming solid state ballast system for gas discharge lamps adapted to respond to external control signals is disclosed which includes the ballast itself along with integral controls for interfacing with an external addressing control system, which may be a powerline carrier system. The external control system includes a signal receiver for receiving, and recognizing remotely transmitted control signals addressed to said ballast. An output device is provided for generating an output control signal modulated in response to the control signals to provide the desired control setpoint of the lamps controlled by the ballast or to turn the lamps on or off.Other References
Field of SearchDischarge device and/or rectifier in the primary circuit of the supply transformerPeriodic switch in the primary circuit of the supply transformer Automatic regulation Regulator responsive to plural conditions CURRENT AND/OR VOLTAGE REGULATION Plural load device regulation With power factor control device Inductance in the condenser circuit | |
