Double odd discrete fourier transformer
CA 1057400 A · Owner: Telecommunications Radioelectriques Et Telephoniques T.R.T. · Inventors: Bonnerot, Georges
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Arrangement for computing the discrete Fourier transform and which is intended for converting N samples of a real signal given in the time domain to N real Fourier coefficients and vice versa. This device is realized by means of a conventional Fourier transformer of the order ?, to which an input computer unit and an output computer unit are connected in which a small number of multiplications of complex numbers is performed.
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
- Granted June 26, 1979. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended June 26, 1996.
- 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.