Communication system having an information bus
CA 1164591 A · Owner: N.V. Philips Gloeilampenfabrieken · Inventors: Kaplinsky, Cecil H.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
24, PHN.9737, ABATRACT;, For a communication system for the transmission of digital information over a bus channel use is made of pulses having a considerably different pulse length for the transmission of "O" and "1" bits, respeatively. In the chosen embodiment the length of "O"-pulse is at least 2.1 times longer than the length of a "1"-pilse so, that the e tolerance on detection of the reception has ample room to absorb wide tolerances in the frequency of a RCclock generator, e.g. = 25%, for propagation time delays and for any inacouracy in the moment of detection when pulse edges of low steepness mustbe used.
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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 March 27, 1984. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended March 27, 2001.
- 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.