| Patent application number | Description | Published |
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| 20080309169 | Touch sensitive actuator having a uniform actuation force and a maximum active area - A load control device for controlling the amount of power delivered to an electrical load from an AC power source comprises a touch sensitive device having a touch sensitive front surface responsive to a point actuation. The front surface is adapted to be provided in an opening of a faceplate such that the front surface of the touch sensitive actuator extends through the opening at a distance equal to or greater than the depth of the faceplate. According to the present invention, the operational area of the front surface is maximized to substantially the entire area of the front surface. Further, a minimum magnitude of a force of each of the point actuations is substantially equal at each of the respective positions on the front surface of the touch sensitive actuator, such that the front surface provides a substantially uniform force profile. | 12-18-2008 |
| 20090206769 | Smart Load Control Device Having a Rotary Actuator - A load control device for controlling the amount of power delivered from an AC power source to an electrical load comprises a rotary actuator, such as a rotary knob or a rotary wheel. The load control device increases and decreases the amount of power delivered to the electrical load in response to rotations of the rotary knob in first and second directions, respectively. The load control device accelerates the rate of change of the amount of power delivered to the load in response to the angular velocity of the rotary actuator. The load control device generates a ratcheting sound when the rotary actuator is rotated in the first direction at a high-end intensity of the load control device. The load control device is operable to control the electrical load in response to both actuations of the rotary actuator and digital messages received via a communication link. | 08-20-2009 |
| 20090256483 | Load Control Device Having a Visual Indication of an Energy Savings Mode - A load control system (e.g., a dimmer switch) operates in a normal mode of operation and an energy-saver mode and displays a visual indication when the system is operating in the energy-saver mode. The system comprises a controllably conductive device adapted to be coupled in series between a power source and a lighting load, a control circuit operatively coupled to the controllably conductive device for adjusting the intensity of the lighting load, and a visual indicator for providing the visual indication that the system is in the energy-saver mode of operation. The control circuit controls the intensity of the lighting load between a minimum intensity and a first maximum intensity when the system is in the normal mode of operation, and between the minimum intensity and a second maximum intensity less than the first maximum intensity when the system is in the energy-saver mode. | 10-15-2009 |
| 20090273286 | MULTIPLE-INPUT ELECTRONIC BALLAST WITH PROCESSOR - A ballast having a microprocessor embedded therein is controlled via four inputs. The ballast includes a high-voltage phase-controlled signal provided by a dimmer and an infrared (IR) receiver through which the ballast can receive data signals from an IR transmitter. The ballast can also receive commands from other ballasts or a master control on the serial digital communication link, such as a DALI protocol link. The fourth input is an analog signal, which is simply a DC signal that linearly ranges in value from a predetermined lower limit to a predetermined upper limit, corresponding to the 0% to 100% dimming range of the load. The output stage of the ballast includes one or more FETs, which are used to control the current flow to the lamp. Based on these inputs, the microprocessor makes a decision on the intensity levels of the load and directly drives the FETs in the output stage. | 11-05-2009 |
| 20090273296 | MULTIPLE-INPUT ELECTRONIC BALLAST WITH PROCESSOR - A ballast having a microprocessor embedded therein is controlled via four inputs. The ballast includes a high-voltage phase-controlled signal provided by a dimmer and an infrared (IR) receiver through which the ballast can receive data signals from an IR transmitter. The ballast can also receive commands from other ballasts or a master control on the serial digital communication link, such as a DALI protocol link. The fourth input is an analog signal, which is simply a DC signal that linearly ranges in value from a predetermined lower limit to a predetermined upper limit, corresponding to the 0% to 100% dimming range of the load. The output stage of the ballast includes one or more FETs, which are used to control the current flow to the lamp. Based on these inputs, the microprocessor makes a decision on the intensity levels of the load and directly drives the FETs in the output stage. | 11-05-2009 |
| 20100001877 | TOUCH SCREEN WITH SENSORY FEEDBACK - A load control device for controlling the amount of power delivered to an electrical load from an AC power source provides improved sensory feedback to a user of the load control device. The load control device comprises a touch screen actuator having a touch sensitive front surface responsive to a plurality of point actuations, each characterized by a position and a force. The touch screen actuator has an output operatively coupled to a controller for providing a control signal representative of the position of the point actuation. The load control device further comprises a visual display and an audible sound generator, both responsive to the controller. The controller is operable to cause the visual display to illuminate and the audible sound generator to generate an audible sound in response to the control signal of the touch screen actuator. | 01-07-2010 |
| 20100013649 | LOAD CONTROL DEVICE HAVING AUDIBLE FEEDBACK - A load control device for controlling the amount of power delivered from an AC power source to an electrical load comprises a non-visual, haptic sensory output structure for producing a variable human detectable output related to the amount of power being delivered to the load. Specifically, the load control device may comprise an audible sound generator for generating audible sounds having operational characteristics that are representative of the amount of power being delivered to the load. For example, the amplitude (or frequency) of the audible sounds may increase as the amount of power delivered to the load increases and may decrease as the amount of power delivered to the load decreases. The audible sound generator may generate a turn-on audible sound that increases in amplitude (or frequency) with respect to time when the load is turned on, and a turn-off audible sound that decreases in amplitude (or frequency) with respect to time when the load is turned off. | 01-21-2010 |
| 20100060187 | HYBRID LIGHT SOURCE - A hybrid light source comprises a high-efficiency lamp, for example, a fluorescent lamp, and a low-efficiency lamp, for example, a halogen lamp. A control circuit individually controls the amount of power delivered to each of the high-efficiency lamp and the low-efficiency lamp, such that a total light output of the hybrid light source ranges throughout a dimming range from a minimum total intensity to a maximum total intensity. The high-efficiency lamp is turned off and the low-efficiency lamp produces all of the total light intensity of the hybrid light source when the total light intensity is below a transition intensity. The low-efficiency lamp is controlled such that the correlated color temperature of the hybrid light source decreases as the total light intensity is decreased below the transition intensity. The hybrid light source is characterized by a low impedance throughout the dimming range. | 03-11-2010 |
| 20100066260 | HYBRID LIGHT SOURCE - A hybrid light source comprises a discrete-spectrum lamp (for example, a fluorescent lamp) and a continuous-spectrum lamp (for example, a halogen lamp). A control circuit individually controls the amount of power delivered to the discrete-spectrum lamp and the continuous-spectrum lamp in response to a phase-controlled voltage generated by a connected dimmer switch, such that a total light output of the hybrid light source ranges throughout a dimming range. The discrete-spectrum lamp is turned off and the continuous-spectrum lamp produces all of the total light intensity of the hybrid light source when the total light intensity is below a transition intensity. The continuous-spectrum lamp is driven by a continuous-spectrum lamp drive circuit, which is operable to conduct a charging current of a power supply of the dimmer switch and to provide a path for enough current to flow through the hybrid light source, such that the magnitude of the current exceeds rated latching and holding currents of a thyristor of the dimmer. | 03-18-2010 |
| 20100071856 | Method of Automatically Controlling a Motorized Window Treatment While Minimizing Occupant Distractions - A load control system provides for automatically controlling a position of a motorized window treatment to control the amount of sunlight entering a space of a building through a window located in a façade of the building in order to control a sunlight penetration distance within the space and minimize occupant distractions. The load control system automatically generates a timeclock schedule having a number of timeclock events for controlling the position of the motorized window treatment during the present day. A user is able to select a desired maximum sunlight penetration distance for the space and a minimum time period that may occur between any two consecutive timeclock events. In addition, a maximum number of movements that may occur during the timeclock schedule may also be entered. The load control system uses these inputs to determine event times and corresponding positions of the motorized window treatment for each timeclock event of the timeclock schedule. | 03-25-2010 |
| 20100127626 | Load Control Device Having A Visual Indication of Energy Savings and Usage Information - A dimmer switch for controlling the amount of power delivered to and thus the intensity of a lighting load comprises a visual display operable to provide a visual indication representative of energy savings and usage information. The visual display may comprise a single visual indicator or a linear array of visual indicators. The visual display is illuminated in a first manner when the intensity of the lighting load is less than or equal to a predetermined eco-level intensity, and is illuminated in a second manner when the intensity of the lighting load is greater than the eco-level intensity. For example, the single visual indicator may be illuminated a first color, such as green, when the intensity of the lighting load is less than or equal to the eco-level intensity, and illuminated a second different color, such as red, when the intensity of the lighting load is greater than the eco-level intensity. | 05-27-2010 |
| 20100141158 | HYBRID LIGHT SOURCE - A hybrid light source comprises a discrete-spectrum lamp (for example, a fluorescent lamp) and a continuous-spectrum lamp (for example, a halogen lamp). A control circuit individually controls the amount of power delivered to the discrete-spectrum lamp and the continuous-spectrum lamp in response to a phase-controlled voltage generated by a connected dimmer switch, such that a total light output of the hybrid light source ranges throughout a dimming range. The discrete-spectrum lamp is turned off and the continuous-spectrum lamp produces all of the total light intensity of the hybrid light source when the total light intensity is below a transition intensity. The continuous-spectrum lamp is driven by a continuous-spectrum lamp drive circuit, which is operable to conduct a charging current of a power supply of the dimmer switch and to provide a path for enough current to flow through the hybrid light source, such that the magnitude of the current exceeds rated latching and holding currents of a thyristor of the dimmer. | 06-10-2010 |
| 20100207759 | Method and Apparatus for Configuring a Wireless Sensor - A wireless sensor for a load control system is adapted to be releasably mounted to a surface, such as a drop ceiling panel, to allow the optimum location of the sensor to be determined. A releasable mounting means of the sensor comprises two posts extending perpendicularly from a rear surface of the sensor. Each post has a small diameter and is rigid enough to pierce the panel without creating a large aesthetically-displeasing hole. The sensor may be permanently affixed to the panel by bending the posts at a rear surface of the panel without the use of a tool, such that the panel is captured between the mounting plate and the deformed posts. The sensor further comprises multiple test buttons provided on an outwardly-facing surface of the sensor for separately testing the communications of the load control system and the operation of the sensor. Alternatively, the releasable mounting means may comprise one or more magnets for magnetically coupling the sensor to a grid structure of the ceiling. | 08-19-2010 |
| 20110029136 | Load Control System Having An Energy Savings Mode - A load control system for a building having a heating and cooling system and a window located in a space of the building uses a daylighting procedure to adjust the amount of power delivered to the lighting load in response to the amount of daylight entering the window, and controls amount of daylight entering the window in order to attempt to reduce the power consumption of the heating and cooling system if the daylighting procedure is not causing the heating and cooling system to save energy. If the lighting load is consuming more energy when the fabric of the motorized window treatment is at a position above the fully-closed position than the lighting load would consume if the fabric was at the fully-closed position, the motorized window treatment moves the fabric to the fully-closed position. | 02-03-2011 |
| 20110029139 | Load control system having an energy savings mode - A load control system for a building having a heating and cooling system and a window located in a space of the building controls amount of daylight entering the window in order to attempt to reduce the power consumption of the heating and cooling system, and adjusts amount of daylight entering the window if the heating and cooling system is not saving energy. A motorized window treatment of the load control system is operable to move a fabric covering the window in a first direction, and a temperature control device is operable to subsequently determine if the heating and cooling system is consuming more energy than when the fabric was in the initial position. The motorized window treatment then moves the fabric in a second direction opposite the first direction if the heating and cooling system is consuming more energy than when the fabric was in the initial position. | 02-03-2011 |
| 20110031806 | Load Control System Having An Energy Savings Mode - A load control system for a building having a lighting load, a window, and a heating and cooling system comprises a lighting control device for controlling the amount of power delivered to the lighting load, a daylight control device, such as a motorized window treatment, for adjusting the amount of natural light to be admitted through a window, and a temperature control device for controlling a setpoint temperature of the heating and cooling system to thus control a present temperature in the building. The load control system may also comprise a controllable electrical receptacle for turning on and off a plug-in electrical load connected thereto. The lighting control device, the daylight control device, the temperature control device, and the controllable receptacle are controlled so as to decrease a total power consumption of the load control system in response to a received demand response command. | 02-10-2011 |
| 20110035061 | Load Control System Having An Energy Savings Mode - A load control system for a building having a heating and cooling system and a window located in a space of the building is operable to control a motorized window treatment in response to a demand response command in order to attempt to reduce the power consumption of the heating and cooling system. When the window may be receiving direct sunlight, the motorized window treatment closes a fabric covering the window when the heating and cooling system is cooling the building, and opens the fabric when the heating and cooling system is heating the building. In addition, when the space is unoccupied and the heating and cooling system is heating the building, the motorized window treatment may open the fabric if the window may be receiving direct sunlight, and may close the fabric if the window may not be receiving direct sunlight. | 02-10-2011 |
| 20110162946 | Load Control Device Having A Visual Indication of Energy Savings and Usage Information - A dimmer switch for controlling the amount of power delivered to and thus the intensity of a lighting load comprises a visual display operable to provide a visual indication representative of energy savings and usage information. The dimmer switch comprises an intensity adjustment actuator, such as a slider knob or a rotary knob, which may be coupled to a potentiometer for adjusting the amount of power delivered to the lighting load. The potentiometer may comprise a dual potentiometer including a resistive element and a conductive element having a cut. The visual display may comprise a single visual indicator, which may be illuminated a first color, such as green, when the intensity of the lighting load is less than or equal to the eco-level intensity, and illuminated a second different color, such as red, when the intensity of the lighting load is greater than the eco-level intensity. | 07-07-2011 |
