Abstract: A method and apparatus for lifting modular furniture, the apparatus includes an electronically controlled jack and a lifting bar that will engage modular furniture. The lifting apparatus can be interconnected with more than one side for the unit of modular furniture. Each lifting apparatus can be controlled by a master control unit which will cause each lifting apparatus to lift the sides so that modular furniture can be lifted as a unit and maintenance such as painting, and/or removal and replacement of flooring can be accomplished. Synchronous lifting is accomplished by comparing the rate at which each lifting apparatus raises the side and by sending a signal with the master control unit to each lifting apparatus to either stop or adjust its raising rate to insure that tilting, which can place undue stress on certain parts of the modular furniture does not occur.

Abstract: A shifting apparatus for use in a motor vehicle having an automatic transmission including a shift position select lever. The shifting apparatus includes an operator input means including a plurality of push buttons, each push button corresponding to desired transmission shift position. A generator means, operative in response to actuation of a push button, generates a signal representative of a desired transmission shift position. An actuator module, drivingly connected to the transmission shift position select lever, includes a variable resistance circuit which maintains a resistance value representative of the present transmission shift position. By reading the resistance value of the circuit, a comparator means can determine the present transmission shift position of the vehicle.

Abstract: A pair of communications adapters each include a number of digital signal processors and network interface circuits for the attachment of a multi-channel telephone line. A bus connecting the communications adapters can carry data between a network line attached to one of the adapters and the digital signal processors of the other adapter. The digital signal processors on each card are connected to a host, or controller, processor. Each digital signal processor interrupts its host processor by transmitting an interrupt control block as data to a data memory of the host processor, and by subsequently sending an interrupt causing the host processor to examine the data memory. Preferably, the interrupt control block includes data representing a number of requested interrupts.

Abstract: A pair of communications adapters each include a number of digital signal processors and network interface circuits for the attachment of a multi-channel telephone line. A bus connecting the communications adapters can carry data between a network line attached to one of the adapters and the digital signal processors of the other adapter. The digital signal processors on each card are connected to a host, or controller, processor. Each digital signal processor interrupts its host processor by transmitting an interrupt control block as data to a data memory of the host processor, and by subsequently sending an interrupt causing the host processor to examine the data memory. Preferably, the interrupt control block includes data representing a number of requested interrupts.