# US 12,192,369 B2 · System and method to secure content and improve collaboration with electronic pen > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,192,369 B2 - Document ID: US12192369B2 - Status: Granted - Kind: B2 - Application number: 17/375,412 - Filed: 2021-07-14 - Published: 2022-12-22 - Granted: 2025-01-07 - Earliest claimed: 2021-06-18 - Assignees: Dell Products L.P. - Applicants: Dell Products L.P. - Inventors: Kai Wang - Web page: https://patentgrep.com/patent/US12192369B2 ## CPC - H04L 9/0643: {Hash functions, e.g. MD5, SHA, HMAC or f9 MAC} - H04L 9/3231: {Biological data, e.g. fingerprint, voice or retina (network architectures or network communication protocols for supporting authentication of entities using biometrical features in a packet data network H04L63/0861)} - G06F 3/03545: {Pens or stylus} - G06V 40/1306: {non-optical, e.g. ultrasonic or capacitive sensing} - G06V 40/1365: {Matching; Classification} - H04L 9/3239: {involving non-keyed hash functions, e.g. modification detection codes [MDCs], MD5, SHA or RIPEMD} - H04L 9/3247: {involving digital signatures} - H04L 9/3297: {involving time stamps, e.g. generation of time stamps} - 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) - G06V: IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING ## Abstract An information handling system may include at least one processor; and a computer-readable medium having instructions thereon that are executable by the at least one processor for: communicatively coupling to an electronic pen; receiving, from the electronic pen, stroke data indicative of content drawn by the user with the electronic pen; receiving, from the electronic pen, biometric data associated with a user of the electronic pen, wherein the biometric data is collected via one or more grip pads of the electronic pen contemporaneously with the content being drawn; receiving, from the electronic pen, timestamp data indicative of a time at which the content was drawn; and creating a cryptographic hash based on the stroke data, the biometric data, and the timestamp data. ## Claims ### Claim 1 An information handling system comprising: at least one processor; and a computer-readable medium having instructions thereon that are executable by the at least one processor for: communicatively coupling to an electronic pen; receiving, from the electronic pen, stroke data indicative of content drawn by a user with the electronic pen, wherein the content is associated with a document and is a drawing of a signature of the user, and wherein the stroke data includes coordinates, size, direction, speed, pressure, shape, and hovering characteristics for each of a plurality of strokes of the signature; receiving, from the electronic pen, biometric data associated with the user, wherein the biometric data is collected via one or more grip pads of the electronic pen contemporaneously with the content being drawn; receiving, from the electronic pen, timestamp data indicative of a time at which the content was drawn; and creating a cryptographic hash based on the stroke data, the biometric data, the timestamp data, and information from the document, wherein the hash is usable to create a cryptographically signed version of the document, and wherein the cryptographic hash is not usable to cryptographically sign a different document that contains different information. ### Claim 2 (depends on 1) The information handling system of claim 1, wherein the content is copyrightable digital content. ### Claim 3 (depends on 1) The information handling system of claim 1, further configured to load a profile associated with the user based on the biometric data. ### Claim 4 (depends on 1) The information handling system of claim 1, wherein the biometric data includes one or more fingerprint images. ### Claim 5 An electronic pen apparatus comprising: a body portion; a tip portion; and one or more grip pads disposed on the body portion; wherein the electronic pen apparatus is configured to: couple to an information handling system; transmit, to the information handling system, stroke data indicative of content drawn by a user with the electronic pen, wherein the content is associated with a document and is a drawing of a signature of the user, and wherein the stroke data includes coordinates, size, direction, speed, pressure, shape, and hovering characteristics for each of a plurality of strokes of the signature; transmit, to the information handling system, biometric data associated with the user, wherein the biometric data is collected via one or more grip pads of the electronic pen contemporaneously with the content being drawn; and transmit, to the information handling system, timestamp data indicative of a time at which the content was drawn, wherein the information handling system is configured to create a cryptographic hash based on the stroke data, the biometric data, the timestamp data, and information from the document, wherein the hash is usable to create a cryptographically signed version of the document, and wherein the cryptographic hash is not usable to cryptographically sign a different document that contains different information. ### Claim 6 (depends on 5) The electronic pen apparatus of claim 5, wherein the content is copyrightable digital content. ### Claim 7 (depends on 5) The electronic pen apparatus of claim 5, further configured to load a profile associated with the user based on the biometric data. ### Claim 8 (depends on 5) The electronic pen apparatus of claim 5, wherein the biometric data includes one or more fingerprint images. ### Claim 9 An article of manufacture comprising a non-transitory, computer-readable medium having computer-executable code thereon that is executable by a processor of an information handling system for: communicatively coupling to an electronic pen; receiving, from the electronic pen, stroke data indicative of content drawn by a user with the electronic pen, wherein the content is associated with a document and is a drawing of a signature of the user, and wherein the stroke data includes coordinates, size, direction, speed, pressure, shape, and hovering characteristics for each of a plurality of strokes of the signature; receiving, from the electronic pen, biometric data associated with the user, wherein the biometric data is collected via one or more grip pads of the electronic pen contemporaneously with the content being drawn; receiving, from the electronic pen, timestamp data indicative of a time at which the content was drawn; and creating a cryptographic hash based on the stroke data, the biometric data, the timestamp data, and information from the document, wherein the hash is usable to create a cryptographically signed version of the document, and wherein the cryptographic hash is not usable to cryptographically sign a different document that contains different information. ### Claim 10 (depends on 9) The article of claim 9, wherein the content is copyrightable digital content. ### Claim 11 (depends on 9) The article of claim 9, wherein the code is further executable for loading a profile associated with the user based on the biometric data. ### Claim 12 (depends on 9) The article of claim 9, wherein the biometric data includes one or more fingerprint images.