Methods and apparatus to determine audience viewing of recorded programs
CA 2556548 C · Owner: Nielsen Media Research, Llc · Inventors: Feininger, William A.; Koutsopanagos, Vasiliki; Milavsky, Joseph
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Methods and apparatus to determine audience viewing of recorded programs are disclosed. An example method disclosed herein comprises displaying a previously recorded program on a display determining a possible original , broadcast time corresponding to the previously recorded program determining , program identifying information corresponding to the previously recorded program, and processing the possible original broadcast time information and the program identifying information to compare the previously recorded program with a known broadcast program.
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
- Filed February 17, 2005 and granted July 16, 2013. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended February 17, 2025.
- Certificates of supplementary protection extend only drug patents, and it isn't classified as one.
- 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.