Device for automatic tonal accompaniment in electronic musical instruments
CA 1082012 A · Owner: N.V. Philips Gloeilampenfabrieken · Inventors: Gross, Ulrich
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A device for automatic tonal accompaniment in musical instruments equipped with a rhythm unit the fundamental, the quint, or an other tone related to a chord being held and/or the chord itself becoming available in a predetermined sequence in a selected rhythm, whilst for at least one tonal key a chord sensor is provided at whose output a signal appears in the presence of a chord whilst an associated switching device connected thereto is provided which in the absence of a chord switches the chord sensor to detection of individual tones.
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 July 22, 1980. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended July 22, 1997.
- 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.