Content display monitor
The invention can enable monitoring of the display of content by a computer system. Moreover, the invention can enable monitoring of the displayed content to produce monitoring information from which conclusions may be deduced regarding the observation of the displayed content by an observer. The invention can also enable monitoring of the display at a content display site of content that is provided by a content provider site over a network to the content display site. Additionally, the invention can enable the expeditious provision of updated and/or tailored content over a network from a content provider site to a content display site so that the content provider's current and appropriately tailored content is always displayed at the content display site. Aspects of the invention related to transfer of content over a network are generally applicable to any type of network. However, it is contemplated that the invention can be particularly useful with a computer network, including private computer networks (e.g., America Online™) and public computer networks (e.g., the Internet). In particular, the invention can be advantageously used with computer networks or portions of computer networks over which video and/or audio content are transferred from one network site to another network site for observation, such as the World Wide Web portion of the Internet.
1. A method of monitoring display of content on a computer comprising:
receiving a content file from a content provider site at a content display site, the content file having embedded therein at least one computer executable monitoring instruction;
accessing the content file at the content display site to cause display of the content and execution of the at least one embedded computer executable monitoring instruction to cause a change in a state of the computer;
monitoring a response of the computer to the change in state to produce monitoring information regarding display of the content on the computer;
evaluating the monitoring information to determine whether the content is displayed or at least partially hidden; and
transmitting the monitoring information to a remote site which did not transfer the content file from the content provider site to the content display site and which is different from the content provider site.
2. A method as defined in claim 1 , wherein evaluating the monitoring information to determine whether the content is displayed or at least partially hidden comprises evaluating the monitoring information to determine whether the content is displayed, fully hidden, or partially hidden.
3. A method as defined in claim 1 , wherein execution of the at least one embedded computer executable monitoring instruction to cause the change in a state of the computer comprises invalidating at least a portion of a monitored image by requesting redrawing of the at least a portion of the monitored image.
4. A method as defined in claim 3 , wherein invalidating at least the portion of the monitored image comprises invalidating the at least the portion of the monitored image on a section-by-section basis.
5. A method as defined in claim 4 , wherein each of the sections is a pixel.
6. A method as defined in claim 5 , wherein invalidating at least the portion of the monitored image comprises invalidating multiple portions of the monitored image.
7. A method as defined in claim 6 , wherein the multiple portions comprise the corners of the image.
8. A method as defined in claim 7 , wherein if none of the corners are redrawn, the image is identified as hidden.
9. A method as defined in claim 7 , wherein if none of the corners are redrawn, the image is identified as fully hidden.
10. A method as defined in claim 7 , wherein if all of the corners are redrawn, the image is identified as unobstructed.
11. A method as defined in claim 7 , wherein if at least one of the corners is redrawn, the image is identified as partially hidden.
12. A method as defined in claim 7 , wherein the multiple portions further comprise at least one of a center portion of the image or an edge portion of the image.
13. A method as defined in claim 1 , generating a timestamp if the content is at least partially hidden.
14. A method u defined in claim 1 , generating a timestamp if the content is not hidden.