Performing actions based on capturing information from rendered documents, such as documents under copyright

摘要

A hardware, firmware, and/or software facility (“facility”) for providing information relevant to rendered documents is described. In some embodiments, the facility identifies multiple versions of an electronic document corresponding to a rendered document captured by a capture device. The facility may then provide a person utilizing the capture device with various ways to interact with one or more versions of the electronic document. In some embodiments, the facility determines that use of a rendered document is restricted, such as by copyright, to some degree. The facility may then offer the person the option to obtain unrestricted use of the rendered document. If the person accepts, the person obtains the right to store captures of the rendered document. If the person declines, the facility automatically discards captures of the rendered document. In some embodiments, the facility may automatically purchase rights to restricted-use rendered documents based upon the person's predefined criteria.

主权项

1. A method, comprising:
receiving, by one or more computing devices, an image of a portion of a document that was captured by a first user using a camera, wherein the image includes text; identifying, by the one or more computing devices, an electronic document that includes the text; determining, by the one or more computing devices, that there are a plurality of versions related to the identified electronic document, wherein the plurality of versions of the electronic document include a first version that corresponds to the document and a second version that differs from the first version; and providing, by the one or more computing devices and in response to the determination, data that present document information informing the first user of the plurality of versions of the electronic document together with information identifying, to the first user, a second user that is currently reading a most recent version of the document.