Arrangement for converting discrete signals in to a discrete single-sideband frequency division- multiplex-signal and vice-versa
CA 1114534 A · Owner: N.V. Philips Gloeilampenfabrieken · Inventors: Mecklenbrauker, Wolfgang F.G.; Claasen, Theodoor A.C.M.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
TDM-FDM arrangement comprising a transformation device for mutually mixing N digital-signals {xk(n)} k = 1,2,3,...N and for generating N conversion signals {sm(n)} wherein:, m = 1,2,3,...N wherein amk represents an element of a constant value of an NxN-matrix A(N) = amk . Each of the conversion signals is applied to one of N signal channels which each comprises a sampling rate increase element (SRI-element) and a digital filter having the transfer function Hm(.omega.) wherein: wherein: .omega.1 arbitrary, 0 ? .omega.o < ? These signal channels are connected to an adder for adding the signals occurring in the various signal channels in order to obtain the FDM-signal. If the filter bank which …
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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 December 15, 1981. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended December 15, 1998.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
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Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.