Abstract: A signal-repeating device control arrangement facilitates user control of various types of media equipment in a facility. According to an example embodiment of the present invention, the different types of user-controllable media equipment are located with respective user-interface units in various zones of the facility to provide user-selectable interaction for the user. The signal-repeating device control arrangement includes a transceiver for wirelessly communicating with a user's remote control, a data-routing circuit for communication with packet-communicating devices such as over an Ethernet, and an emulation circuit for providing an interface to manufacturer-specific equipment for control of other devices types and/or user input devices.

Abstract: A speaker system and approach facilitates flexible installation and removal of an audio speaker into a structure. According to an example embodiment of the present invention, a speaker system includes mounting hardware and audio components with a fastening arrangement that facilitates the fastening of the mounting hardware to a structure and the audio components to the mounting hardware. The speaker system is amenable to a one-piece installation wherein the audio components are coupled to the mounting hardware during installation, as well as a two-piece installation wherein the mounting hardware is attached to the structure separately from the audio components. After installation, the one-piece and two-piece approaches both facilitate the flexible removal of the audio components from the mounting hardware.

Abstract: An example embodiment is directed to use in a facility benefiting from the distribution of audio throughout different facility zones (“audio zones”), with each audio zone receiving an audio signal from a remotely-located audio distribution controller. For controlling audio at a user-controlled speaker load located in one of the audio zones, a circuit arrangement includes isolation circuit, speaker load circuit, user-input device and an audio control unit. The isolation circuit generate a transformed audio signal by provide an impedance-matched termination and by permitting one of a number of impedance-matching circuits to be set wherein each impedance-matching circuit provides a different amount of electrical power to the speaker load. The speaker load circuit delivers, in response to the transformed audio signal, audible signals in the audio zone.

Abstract: A signal-repeating device control arrangement facilitates user control of various types of media equipment in a facility. According to an example embodiment of the present invention, the different types of user-controllable media equipment are located with respective user-interface units in various zones of the facility to provide user-selectable interaction for the user. The signal-repeating device control arrangement includes a transceiver for wirelessly communicating with a user's remote control, a data-routing circuit for communication with packet-communicating devices such as over an Ethernet, and an emulation circuit for providing an interface to manufacturer-specific equipment for control of other devices types and/or user input devices.

Abstract: Audio signals are processed in a manner that facilitates control for overpower conditions. According to an example embodiment of the present invention, an audio processing circuit is configured and arranged for controlling an output audio signal as a function of an output power and/or clip condition. The audio processing circuit is adapted to approximate output power from an amplifier independent from output load and varying line conditions. When an overpower and/or clip condition is approximated, a signal is generated to reduce the output power by, e.g., reducing the-signal gain and/or disconnecting the output.

Abstract: A multi-zone audio distribution amplifier system includes positions for several stereo amplifiers which may be used as modular and cascadable amplifier units. The system is enclosed in a housing having a front panel with windows for exposing a set of led display circuits on the front side of the housing and easy access to the modular units on the rear side of the housing. Each modular amplifier unit includes a printed circuit board for an amplification circuit, a heat sink, and a loop-back port for cascading the amplifier units. An interface board includes support for the display and edge-connector receptacles for receiving each printed circuit board edge and for providing power to each of the amplifier units. Each amplifier unit is operable independent of the others, and the desired amplification may be selected by electrically cascading the amplifier units via the loop-back ports.