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Expired Canadian patentCanada

Real time fill circuit

CA 1159957 A · Owner: Honeywell Inc. · Inventors: Gessert, James M.

CIPO record

Overview

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Its claims, description and drawings are in the Canadian Patents Database.

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Abstract From the Canadian patent

Case 04-4244-U.S. APPLICATION OF, JAMES M. GESSERT REAL TIME FILL CIRCUIT, ABSTRACT, there has been provided a digital circuit for, interpolating the intensity values between adjacent pulsed data signals. The interpolation includes effectively, providing a plurality of shades of gray between adjacent received data. The interpolation data is applied to the display means to effectively fill the interstices between the adjacent image lines. When thus applied the, resultant image is one of a smooth transition between adjacent analog data thereby constituting a more readily readable and desirable display of the image.

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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 January 3, 1984. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended January 3, 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.
FiledJuly 3, 1981
GrantedJanuary 3, 1984
Term endedJanuary 3, 2001
Patent numberCA 1159957 A
Classification (IPC)A61B10/00 +2 more

Timeline

Timeline From CIPO dates

1982198419861988199019921994199619982000Application filedJuly 3, 1981Patent grantedJan 3, 1984Term endedJan 3, 2001

Sources & verification

Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.