Data transmission system
CA 1255006 A · Owner: American Telephone And Telegraph Company · Inventors: Fraser, Alexander G.; Riddle, Guy G.; Marshall, William T.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Abstract:, The present invention relates to a data transmission system. The system is comprised of a unit for assembling data bytes into a plurality of arbitrarilysized blocks, a unit for appending to each block a trailer indicating the size and sequence number of each block and a unit which is responsive to the trailer for checking the size and sequence number of the blocks. The invention also includes a method of transmitting data. The method comprises the steps of assembling the data into arbitrarily-sized blocks of data, appending to each block data a trailer specifying the length and sequence number of each block of data, and thereafter checking both the length and sequence number to …
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Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.
Why it's free to use
- Granted May 30, 1989. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended May 30, 2006.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Timeline
Timeline From CIPO dates
Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.