Apparatus for and method of collating partitioned time disordered synchronous data streams
AssigneeBell Telephone Laboratories, Incorporated
InventorHarold Seidel
Life of this patent
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Abstract
Digital carrier channels and switching systems in a telecommunications facility may be used to transmit a high-speed data signal between an originating end and a terminating end. At the originating end, the high-speed data signal is distributed either bit-by-bit or sample-by-sample and sequentially to a predetermined plurality of lower speed channels. At the terminating end, the lower speed channels are collated to reconstruct the original high-speed data signal, using submessage sequence identifying signals.
Claims18
A digital transmission system arranged for transmission of a high-speed serial data stream between an originating end (11) and a terminating end (29) separated geographically
- characterized by
- at said originating end (11), means (96) for distributing said high-speed serial data stream either bit-by-bit or sample-by-sample and sequentially to a predetermined plurality of lower-speed channels (12), at least one of said lower-speed channels being different in length relative to the other channels,
- means for asynchronously transmitting signals on each of said lower-speed channels in a message format including a start-of-message signal and an end-of-message signal,
- at said terminating end (29),
- means (127,133 . . . 139) for identifying each of said lower-speed channels (28), and
- means (125,159,161) responsive to said start-of-message signals for collating the signals on said lower-speed channels (28) to derive said high-speed serial data stream.
A method for the transmission of a high-speed serial data stream between an originating end (11) and a terminating end (29)
- characterized by
- the steps of
- at the originating end (11), distributing said high-speed serial data stream either bit-by-bit or sample-by-sample and sequentially to a predetermined plurality of lower-speed channels (12), at least one of said lower-speed channels being different in length relative to the other channels,
- asynchronously transmitting signals on each of said lower-speed channels in a message format including a start-of-message signal and an end-of-message signal,
- at the terminating end (29),
- identifying each of said lower-speed channels (28),
- identifying the last signal to arrive on said lower-speed channels (28), and
- restoring the proper sequence of said signals on said lower-speed channels in response to said start-of-message signals thereby reproducing said high-speed serial data stream.
A terminating terminal (29) for the transmission of high-speed serial data stream
- characterized by
- means for receiving asynchronous signals each having a start-of-message signal and an end-of-message signal on each of a plurality of incoming lower-speed channels,
- means (127,133 . . . 139) for identifying each of said plurality of incoming lower-speed channels (28), at least one of said lower-speed channels being different in length relative to the other channels,
- means (125,159,161) responsive to said start-of-message signals for collating signals on said incoming lower-speed channels (28) to derive said high speed serial data stream, and
- means (131,137 . . . 143) connected to said collating means for storing said signals received from each of said plurality of incoming lower-speed channels (28).
Dependencies are inferred from the claim text.