Dual framing bit sequence alignment apparatus and method
CA 2029248 C · Owner: Taylor, Steven C. · Inventors: Taylor, Steven C.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A dual-framing-bit-alignment apparatus having a communications channel, a data device, an encryptor a, framing-bit device, a decryptor, a first framing-bit repositioner, and a second framing-bit repositioner. The first data device generates a first data-bit sequence having a first framing-bit sequence. The encryptor encrypts the first data-bit sequence as an encrypted-bit sequence. The framing-bit device substitutes on the encrypted-bit sequence a second, framing-bit sequence, thereby generating a framedencrypted-bit sequence. The decryptor decrypts the framed-encrypted-bit sequence as a second data-bit sequence. The second data-bit sequence contains errors due to the second framing-bit …
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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
- Filed November 2, 1990 and granted October 4, 1994. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended November 2, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 2, 2012.
- 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
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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.