Dialogic Networks (israel) Ltd.

Eci Telecom Ltd.

Veraz Networks Ltd.

Oleg Litvak

Sason Sourani

Amir Ilan

David Philips

A compression method applies a selection rule to input symbols and generates a reduced partial set of symbols. The partial set is checked against a dictionary-index for a match. A match identifies a range of matching symbols in a dictionary. The length of the matching range is iteratively increased by checking previous and next symbols in the input data and the dictionary until a matching range length meets a threshold limit or the length of the matching range cannot be increased further. Compressed data corresponding to the input symbols is provided where input symbols are copied over and symbols in a matched range of data are replaced with a representation of their corresponding start location and length in the dictionary.

Method and apparatus for compressing data-carrying signals

A method and apparatus are described for determining whether to convey a communication signal in a compressed form along a communication path. The method comprises the steps of: (i) providing the communication signal that should be conveyed along said communication path; (ii) determining whether at least part of the communication signal comprises data having a non-random distribution; (iii) if the at least part of the communication signal is determined to comprise data having at least partially a non-random distribution, applying a compression algorithm onto that at least part of the communication signal to form a compressed form of the communication signal provided; and (iv) conveying the communication signal in its compressed form along the communication path.

Selective data compression

In a telecommunication network, a method for managing varying traffic load by establishing an instantaneous demand for bandwidth at a pre-defined location of the telecommunication network. The total number of bits required is compared with a number of bits available for use in that pre-defined location, and a bit rate adjusting mechanism is applied to each one of the algorithms associated with an active channels when required. The bit adjusting mechanism is based on pre-defined functions that describe the number of bits that will be allocated for each active algorithm under varying loads of the network. Thus, the bit adjusting mechanism allow the adjustment of the number of bits for each one the network channels, obeying to the constrain that the total number of bits allocated to all channels shall not exceed the total number of bits available.

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Ariel, Israel

Oleg Litvak