Bundling/de-bundling of low frequency digital data streams

A method for bundling a plurality of digital data streams with a first speed to at least one digital data stream with a second, higher speed, the method comprising:

• during even time slots in the plurality of digital data streams:
• storing data from the plurality of digital data streams in a first memory portion, and
• reading data from a second memory portion for transmission on the at least one digital data stream with a second, higher speed;
• and
• during odd time slots:
• storing data from the plurality of digital data streams in the second memory portion, and
• reading data from the first memory portion for transmission over the at least one digital data stream with a second, higher speed.

A de-concentrator for de-bundling a first plurality of digital data streams with a first speed into a second plurality of lower speed digital data streams, the de-concentrator comprising:

• a plurality of inputs, each adapted to receive data over one of the first plurality of digital data streams;
• a plurality of memory devices, each divided into a first portion and a second portion;
• and
• a control circuit, coupled to the plurality of inputs and the plurality of memory devices, wherein data from a portion of a time slot of the first plurality of digital data streams is selectively stored in one of the first and second portions of each of the plurality of memory devices while data from another time slot of the first plurality of digital data streams is read from the other of the first and second portions of the plurality of memory devices to provide the second plurality of lower speed digital data streams.

A method for de-bundling a first plurality of digital data streams from a second plurality of higher speed digital data streams, the method comprising:

• receiving a first time slot of the second plurality of higher speed digital data streams;
• sequentially storing selected portions of the first time slot of the second plurality of higher speed digital data streams in a first portion of a plurality of memory devices;
• and
• simultaneously reading the data out of the first portion of each of the plurality of memory devices to provide the first plurality of digital data streams during a subsequent time slot of the second plurality of higher speed digital data streams.

A method for de-bundling a first plurality of digital data streams from a second plurality of higher speed digital data streams, the method comprising:

• receiving a first time slot of the second plurality of higher speed digital data streams;
• sequentially enabling a plurality of memory devices to store data during each time slot of the second plurality of higher speed digital data streams;
• storing selected portions of the first time slot of the second plurality of higher speed digital data streams in a first portion of a plurality of memory devices when enabled;
• and
• simultaneously reading the data out of the first portion of each of the plurality of memory devices to provide the first plurality of digital data streams while data is stored in a second portion of the plurality of memory devices during a subsequent time slot of the second plurality of higher speed digital data streams.