Universal protocol data receiver
CA 1252898 A · Owner: American Telephone And Telegraph Company · Inventors: Riddle, Guy G.; Fraser, Alexander 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:, A universal protocol data receiver is disclosed which is capable of receiving data streams in character mode and block mode, providing flow control and error detection and correction. The receiver is divided into two stages, separated by a first-in, first-out buffer register. The first stage handles flow control and error processing as well as initialization. The second stage handles interfacing with the data utilizing mechanism and flow control acknowledgements. The FIFO buffer is divided into two parts by a movable barrier which limits the access of the second stage. The barrier permits error processing by hiding incoming blocks of data behind the barrier until processing is …
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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 April 18, 1989. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended April 18, 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.