# US 2013/0159849 A1 · Jump to Collaborator Cursor > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2013/0159849 A1 - Document ID: US20130159849A1 - Status: Published application - Kind: A1 - Application number: 13/332,323 - Filed: 2011-12-20 - Published: 2013-06-20 - Earliest claimed: 2011-12-20 - Inventors: Keng Fai Lee; Alan Chu; On Loy Sung; Hong Cheung Lee; Oi Ying Angela Lee - Web page: https://patentgrep.com/patent/US20130159849A1 ## CPC - H04L 9/3263: {involving certificates, e.g. public key certificate [PKC] or attribute certificate [AC]; Public key infrastructure [PKI] arrangements (network architectures or network communication protocols for supporting authentication of entities using certificates in a packet data network H04L63/0823)} - G06F 40/169: Annotation, e.g. comment data or footnotes - G06F 40/197: Version control (for software G06F8/71) - G06T 13/80: Two-dimensional [2D] animation, e.g. using sprites - H04L 9/30: Public key, i.e. encryption algorithm being computationally infeasible to invert or user's encryption keys not requiring secrecy - H04L 9/321: {involving a third party or a trusted authority} - H04L 63/06: {for supporting key management in a packet data network (cryptographic mechanisms or cryptographic arrangements for key management H04L9/08)} - H04L 63/068: {using time-dependent keys, e.g. periodically changing keys (cryptographic mechanisms or cryptographic arrangements for controlling usage of secret information H04L9/088)} - H04L 63/0823: {using certificates (cryptographic mechanisms or cryptographic arrangements for entity authentication involving certificates H04L9/3263)} - H04L 63/0861: {using biometrical features, e.g. fingerprint, retina-scan (cryptographic mechanisms or cryptographic arrangements for entity authentication using biological data H04L9/3231)} - H04L 63/0884: {by delegation of authentication, e.g. a proxy authenticates an entity to be authenticated on behalf of this entity vis-à-vis an authentication entity} - H04W 12/06: Authentication - H04L: TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION (arrangements common to telegraphic and telephonic communication H04M) - G06F: ELECTRIC DIGITAL DATA PROCESSING (computer systems based on specific computational models G06N) - G06T: IMAGE DATA PROCESSING OR GENERATION, IN GENERAL - H04W: WIRELESS COMMUNICATION NETWORKS (broadcast communication H04H; communication systems using wireless links for non-selective communication, e.g. wireless extensions H04M1/72) ## Abstract Various features and processes related to document collaboration are disclosed. In some implementations, animations are presented when updating a local document display to reflect changes made to the document at a remote device. In some implementations, a user can selectively highlight changes made by collaborators in a document. In some implementations, a user can select an identifier associated with another user to display a portion of a document that includes the other user's cursor location. In some implementations, text in document chat sessions can be automatically converted into hyperlinks which, when selected, cause a document editor to perform an operation. ## Claims ### Claim 1 A method comprising: displaying a document on first device; receiving information describing a cursor location within the document, the cursor location associated with a first input provided at a second device; receiving a second input at the first device; and in response to the second input, modifying the display of the document at the first device to present a portion of the document that includes the cursor location. ### Claim 2 (depends on 1) The method of claim 1, wherein the document is stored on a third device that is not the first device and is not the second device. ### Claim 3 (depends on 1) The method of claim 1, wherein the cursor location corresponds to a location within the document that is being edited at the second device. ### Claim 4 A method comprising: displaying a document on a first device; displaying users who are currently accessing the document; receiving a selection of at least one of the users; and in response to receiving the selection, modifying the display of the document to present a portion of the document that includes a location of a cursor corresponding to the selected user. ### Claim 5 (depends on 4) The method of claim 4, wherein the location of the cursor corresponds to input provided by the selected user at a second device. ### Claim 6 A non-transitory computer-readable medium including one or more sequences of instructions which, when executed by one or more processors, causes: displaying a document on first device; receiving information describing a cursor location within the document, the cursor location associated with a first input provided at a second device; receiving a second input at the first device; and in response to the second input, modifying the display of the document at the first device to present a portion of the document that includes the cursor location. ### Claim 7 (depends on 6) The computer-readable medium of claim 6, wherein the document is stored on a third device that is not the first device and is not the second device. ### Claim 8 (depends on 6) The computer-readable medium of claim 6, wherein the cursor location corresponds to a location within the document that is being edited at the second device. ### Claim 9 A non-transitory computer-readable medium including one or more sequences of instructions which, when executed by one or more processors, causes: displaying a document on a first device; displaying users who are currently accessing the document; receiving a selection of at least one of the users; and in response to receiving the selection, modifying the display of the document to present a portion of the document that includes a location of a cursor corresponding to the selected user. ### Claim 10 (depends on 9) The computer-readable medium of claim 9, wherein the location of the cursor corresponds to input provided by the selected user at a second device. ### Claim 11 A system comprising: one or more processors; and a non-transitory computer-readable medium including one or more sequences of instructions which, when executed by the one or more processors, causes: displaying a document on first device; receiving information describing a cursor location within the document, the cursor location associated with a first input provided at a second device; receiving a second input at the first device; and in response to the second input, modifying the display of the document at the first device to present a portion of the document that includes the cursor location. ### Claim 12 (depends on 11) The system of claim 11, wherein the document is stored on a third device that is not the first device and is not the second device. ### Claim 13 (depends on 11) The system of claim 11, wherein the cursor location corresponds to a location within the document that is being edited at the second device. ### Claim 14 A system comprising: one or more processors; and a non-transitory computer-readable medium including one or more sequences of instructions which, when executed by the one or more processors, causes: displaying a document on a first device; displaying users who are currently accessing the document; receiving a selection of at least one of the users; and in response to receiving the selection, modifying the display of the document to present a portion of the document that includes a location of a cursor corresponding to the selected user. ### Claim 15 (depends on 14) The system of claim 14, wherein the location of the cursor corresponds to input provided by the selected user at a second device.