Abstract: A line array loudspeaker includes a first plurality of flexible joints, a first plurality of electro-acoustic drivers being linked to each other by the first plurality of flexible joints, and a first sectional horn assembly coupled to the first plurality of electro-acoustic drivers. The first plurality of electro-acoustic drivers is adjustable so that it can be positioned such that an axis that runs through an acoustic center of the first plurality of electro-acoustic drivers is articulable to produce three or more configurations including: a substantially straight configuration and a plurality of arcuate configurations.

Abstract: A line array loudspeaker includes a first plurality of flexible joints, a first plurality of electro-acoustic drivers being linked to each other by the first plurality of flexible joints, and a first sectional horn assembly coupled to the first plurality of electro-acoustic drivers. The first plurality of electro-acoustic drivers is adjustable so that it can be positioned such that an axis that runs through an acoustic center of the first plurality of electro-acoustic drivers is articulable to produce three or more configurations including: a substantially straight configuration and a plurality of arcuate configurations.

Abstract: A loudspeaker system includes a first flexible panel, a first line array of electro-acoustic drivers, and at least one mechanically adjustable point. The first line array of electro-acoustic drivers are mounted on the first flexible panel and linked to each other by flexible joints in the first flexible panel. The at least one mechanically adjustable point enables articulation of the first flexible panel at the flexible joints to produce one or more of a substantially straight and an arcuate configuration of the first line array of electro-acoustic drivers.

Abstract: A loudspeaker system includes a first flexible panel, a first line array of electro-acoustic drivers, and at least one mechanically adjustable point. The first line array of electro-acoustic drivers are mounted on the first flexible panel and linked to each other by flexible joints in the first flexible panel. The at least one mechanically adjustable point enables articulation of the first flexible panel at the flexible joints to produce one or more of a substantially straight and an arcuate configuration of the first line array of electro-acoustic drivers.

Abstract: A loudspeaker system includes a first flexible panel, a first line array of electro-acoustic drivers, and at least one mechanically adjustable point. The first line array of electro-acoustic drivers are mounted on the first flexible panel and linked to each other by flexible joints in the first flexible panel. The at least one mechanically adjustable point enables articulation of the first flexible panel at the flexible joints to produce one or more of a substantially straight and an arcuate configuration of the first line array of electro-acoustic drivers.

Abstract: A loudspeaker includes a horn including a first end panel, a second end panel, a first side panel, and a second side panel. Edges of at least the first and second side panels define a diffraction slot opening. The first and second side panels are each fabricated from a sheet of flexible material held in a stressed, curved shape by at least a rigid support member. The panels are designed by an automated process based on a number of electro-acoustic transducers to be used in a loudspeaker, horizontal and vertical coverage angles for the loudspeaker, and a wall length for a horn of the loudspeaker.

Abstract: A loudspeaker system includes a first flexible panel, a first line array of electro-acoustic drivers, and at least one mechanically adjustable point. The first line array of electro-acoustic drivers are mounted on the first flexible panel and linked to each other by flexible joints in the first flexible panel. The at least one mechanically adjustable point enables articulation of the first flexible panel at the flexible joints to produce one or more of a substantially straight and an arcuate configuration of the first line array of electro-acoustic drivers.

Abstract: A cooktop power control system for a cooktop that has a plurality of burners, where the cooktop power control system controls the power delivered from two or more separate active burners to separate cookware items each of which is associated with an active burner. There is a maximum limit of total power that is available for delivery from all of the burners together. There is a heating control user interface associated with each of the burners, each heating control user interface constructed and arranged to be set by a user to a particular heating control user interface setting. A desired cookware temperature is derived from the setting of each heating control user interface. The measured temperatures of the cookware items are available to the cooktop power control system.

Abstract: In general, in some aspects, a loudspeaker includes a horn including a first end panel, a second end panel, a first side panel, and a second side panel. Edges of at least the first and second side panels define a diffraction slot opening. A plurality of manifold components each has an output opening coupled to the diffraction slot opening. The output openings of the plurality of manifold components together constitute a diffraction slot source at the diffraction slot opening. A plurality of electro-acoustic transducers are each coupled to an input opening of one of the manifold components.

Abstract: A loudspeaker system includes a first flexible panel, a first line array of electro-acoustic drivers, and at least one mechanically adjustable point. The first line array of electro-acoustic drivers are mounted on the first flexible panel and linked to each other by flexible joints in the first flexible panel. The at least one mechanically adjustable point enables articulation of the first flexible panel at the flexible joints to produce one or more of a substantially straight and an arcuate configuration of the first line array of electro-acoustic drivers.

Abstract: A system and method for controlling the power delivered to cookware by a power control system that comprises a heating control user interface that is set by the user to a particular heating control user interface set point within an operating range. A controller derives from the heating control user interface set point a desired cookware temperature set point, and, over at least a first portion of the operating range that encompasses the boiling range, also derives from the heating control user interface set point a maximum limit of power that can be delivered to the cookware to maintain the cookware at the desired cookware temperature set point. The maximum power limit varies monotonically over the first portion of the operating range.

Abstract: A loudspeaker includes a horn including a first end panel, a second end panel, a first side panel, and a second side panel. Edges of at least the first and second side panels define a diffraction slot opening. The first and second side panels are each fabricated from a sheet of flexible material held in a stressed, curved shape by at least a rigid support member. The panels are designed by an automated process based on a number of electro-acoustic transducers to be used in a loudspeaker, horizontal and vertical coverage angles for the loudspeaker, and a wall length for a horn of the loudspeaker.

Abstract: A cooktop power control system for a cooktop that has a plurality of burners, where the cooktop power control system controls the power delivered from two or more separate active burners to separate cookware items each of which is associated with an active burner. There is a maximum limit of total power that is available for delivery from all of the burners together. There is a heating control user interface associated with each of the burners, each heating control user interface constructed and arranged to be set by a user to a particular heating control user interface setting. A desired cookware temperature is derived from the setting of each heating control user interface. The measured temperatures of the cookware items are available to the cooktop power control system.

Abstract: A system and method for controlling the power delivered to cookware by a power control system that comprises a heating control user interface that is set by the user to a particular heating control user interface set point within an operating range. A controller derives from the heating control user interface set point a desired cookware temperature set point, and, over at least a first portion of the operating range that encompasses the boiling range, also derives from the heating control user interface set point a maximum limit of power that can be delivered to the cookware to maintain the cookware at the desired cookware temperature set point. The maximum power limit varies monotonically over the first portion of the operating range.

Abstract: A loudspeaker includes a horn including a first end panel, a second end panel, a first side panel, and a second side panel. Edges of at least the first and second side panels define a diffraction slot opening. The first and second side panels are each fabricated from a sheet of flexible material held in a stressed, curved shape by at least a rigid support member. The panels are designed by an automated process based on a number of electro-acoustic transducers to be used in a loudspeaker, horizontal and vertical coverage angles for the loudspeaker, and a wall length for a horn of the loudspeaker.

Abstract: A loudspeaker includes a horn including a first end panel, a second end panel, a first side panel, and a second side panel. Edges of at least the first and second side panels define a diffraction slot opening. The first and second side panels are each fabricated from a sheet of flexible material held in a stressed, curved shape by at least a rigid support member. The panels are designed by an automated process based on a number of electro-acoustic transducers to be used in a loudspeaker, horizontal and vertical coverage angles for the loudspeaker, and a wall length for a horn of the loudspeaker.

Abstract: A loudspeaker includes a horn including a first end panel, a second end panel, a first side panel, and a second side panel. Edges of at least the first and second side panels define a diffraction slot opening. The first and second side panels are each fabricated from a sheet of flexible material held in a stressed, curved shape by at least a rigid support member. The panels are designed by an automated process based on a number of electro-acoustic transducers to be used in a loudspeaker, horizontal and vertical coverage angles for the loudspeaker, and a wall length for a horn of the loudspeaker.

Abstract: A system and method for controlling the power delivered to cookware by a power control system that comprises a heating control user interface that is set by the user to a particular heating control user interface set point within an operating range. A controller derives from the heating control user interface set point a desired cookware temperature set point, and, over at least a first portion of the operating range that encompasses the boiling range, also derives from the heating control user interface set point a maximum limit of power that can be delivered to the cookware to maintain the cookware at the desired cookware temperature set point. The maximum power limit varies monotonically over the first portion of the operating range.

Abstract: A system and method for controlling the power delivered to cookware by a power control system that comprises a heating control user interface that is set by the user to a particular heating control user interface set point within an operating range. A controller derives from the heating control user interface set point a desired cookware temperature set point, and, over at least a first portion of the operating range that encompasses the boiling range, also derives from the heating control user interface set point a maximum limit of power that can be delivered to the cookware to maintain the cookware at the desired cookware temperature set point. The maximum power limit varies monotonically over the first portion of the operating range.

Abstract: A compact and portable loudspeaker system operable in two configurations includes a driver array and a base unit having a bass enclosure and a dock. In an extended configuration, the driver array is supported by one or more extension legs between three to eight feet above the base unit where one of the extension legs is held by the dock. The base unit may be placed on a floor of a small to medium venue with the mid-to-high range driver array elevated near or above the elevation of an audience in the venue. In a compact configuration, the driver array is directly supported by the dock and the base unit and driver array may be placed on a table or desk in a classroom, conference room, or other such small to medium venue. The portable loudspeaker system may be transported in the compact configuration.