Abstract: A food and beverage caddy comprises a platform that is adapted to be securely placed within an existing touring pack or saddlebag of a motorcycle. The platform comprises a plurality of beverage cup apertures specifically shaped to receive and support standard beverage cups. Support legs elevate the platform above the bottom of the touring pack or saddlebag. Spikes or hook-and-loop fasteners can be used to attach the food and beverage caddy to the touring pack or saddlebag.

Abstract: The present invention provides a coding technique for QAM systems which does not require differential encoding. Constellation points are chosen such that the set is not symmetrical. No coding for quadrants takes place. During synchronization of the receiver, the received constellation is rotated until the defected signal matches a known output, whereupon the rotation of the constellation is determined.

Abstract: A fractionally spaced adaptive equalizer structure provides improved processing speed. Equalization is performed by time-spaced processing arrays, each array having a plurality of elements each performing one of the required complex component multiplication. Particular advantages are achieved in high data-rate low-cost modem design.

Abstract: An echo cancelling system incorporated in a conventional echo canceller with additional circuitry to provide tracking and compensation for drifting of any D.C. offset generated.Upon initial energization of the system (i.e. before data signals are processed thereby) an output signal e.sub.1k from an error signal input device represents a D.C. offset value generated by the components of the system.This value is stored in a D.C. offset register, the loading of which is controlled by a load/inhibit signal. Refining of the stored value during data processing is achieved using predetermined increments .DELTA..sub.1 for half-duplex mode and .DELTA..sub.2 (of smaller size) for full-duplex mode.