Abstract: The present invention enables the transparent bridging of an audio controller over a network between a host PC and a remote user interface system by providing a host module that presents the interface of an audio controller to a system bus of a host computer and a remote module that presents an audio link interface to codecs in a remote system. By bridging the controller at these interfaces, the effects of network delays and data loss can be controlled inside the user's human perception limits without introducing signal timing problems at the two specified interfaces.

Abstract: A method or system or apparatus provides improved digital communication. In one aspect, flow control in performed by receiving status preprended to data units in a combined data channel, where the status data indicated the available status of a number of far end receiving channels. Thus data may be sent only to available receiving channels. In a further aspect, a frequency reference may also be transmitted by including data in data units in a combined channel. In a further aspect, an active channel can be selected among two redundant channels by use of an active bit in said data units. The invention has particular applications to ATM-type communication systems and may also be used in other communication systems.

Abstract: A method or system or apparatus provides improved digital communication. In one aspect, flow control in performed by receiving status preprended to data units in a combined data channel, where the status data indicated the available status of a number of far end receiving channels. Thus data may be sent only to available receiving channels. In a further aspect, a frequency reference may also be transmitted by including data in data units in a combined channel. In a further aspect, an active channel can be selected among two redundant channels by use of an active bit in said data units. The invention has particular applications to ATM-type communication systems and may also be used in other communication systems.

Abstract: A method and apparatus for traffic control in an ATM-based network is provided to avoid congestion of traffic flows and false identifications of conforming and non-conforming cells.

Abstract: A device for identifying cells as either conforming or non-conforming in a cell-based transmission system, which includes an n-bit word-length counter having an input coupled to a source of clock pulses, a parallel n-word gate coupled to a parallel output of the n-bit word length counter and having a gate input coupled to a source of cell arrival signals. A processor is coupled to an output of gate having a first comparer for comparing TAT and t.sub.a (k), a second comparer for comparing t.sub.a (k)[n-1] with zero and t.sub.a (k-1)[n-1] with 1, a setting device for setting TAT=t.sub.a (k) in the event that either of the comparisons in the first and second comparers are true. A third comparer is provided for comparing TAT and t.sub.a (k)+L and if TAT is less than or equal to t.sub.a (k)+L, an indexing device for indexing TAT by I and declaring the cell conforming, and an output device for declaring the cell non-conforming if TAT is greater than t.sub.a (k)+L.