Arithmetic unit
CA 2293584 C · Owner: Matsushita Electric Industrial Co. Ltd. · Inventors: Okamoto, Koji; Kuromaru, Shunichi; Michiyama, Junji
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention provides an arithmetic unit comprising an input register 101 for storing a digital data which is input from outside, as a P-bit digital data, an output register 107 for storing a Q-bit digital data, and output bit selecting means 105 for receiving the P-bit digital 102 data which is output from the input register 101 as a first input data, and the Q-bit digital data 103 which is output from the output register as a second input data selecting, bits, values of which bits are to be output among bits of the first, input data 102 and bits of the second input data 103 in accordance, with a control data 104 which is input from outside and outputting, a Q-bit digital data 106 …
Read the whole patent
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 June 5, 1998 and granted May 14, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended June 5, 2018.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 5, 2020.
- 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.