Abstract: Movable and audible toys and other animated devices spaced apart from a television screen are provided with program synchronized audio and control data to interact with the program viewer in relationship to the television program. A sampling keyboard-based encoder for kinetic device actuating signals is coupled via an audio mixer to an audiovisual programming source and television transmitter carrying an audio based kinetic and audio signal complex. At a remote location, coded audio and kinetic device signals along with audiovisual programming is received and the audiovisual programming content is displayed for viewing and listening. Stereo soundband based program audio signals are decoded and separated from the stereo sound band based device audio and kinetic signals. The device audio and kinetic signals are retransmitted to a spaced apart toy causing the device to be audible and move in synchronization with the spaced apart audiovisual programming.

Abstract: A battery monitoring system has an LED matrix displaying plural battery group conditions. The matrix has a column defining reference row of LED indicators, each active LED representing an adjacent voltage range. The reference row is responsive to an average battery voltage of plural battery groups. Aligned in columns with the reference row LED's are plural LED rows, each row representing an individual battery group. An active LED indicates an individual battery group voltage of the corresponding individual battery group. Analog multiplexing of scanned battery group voltages are sequentially applied to the matrix rows at a scan rate greater than the visual persistence of the LED's so that at any given moment, an LED appears active in each row as well as in the reference row. To focus on a single battery group, a scan switch interrupts application of scanned battery voltages. A digital display also selectively indicates either overall plural battery groups voltage or individual battery group voltage.

Abstract: A control circuit and system is disclosed for providing emergency lighting from a single source of electrical power which itself is capable of providing input power alternately in the form of a sinusoidal power signal and a square wave power signal during interruption of the sinusoidal power signal. In the preferred form of the invention, a high intensity discharge lamp (HID) and an emergency lamp are provided in the same lighting fixture. A control circuit in the form of a power source detector first detects whether a sinusoidal power signal or a square wave signal is being supplied from a power station onto a pair of input lines. The power station automatically supplies the detector with input power in the form of a square wave rather than the normal sinusoidal power signal when an emergency condition exists such as normal power failure.