US Patent 11030921 Change data driven tactile response

Various examples described herein are directed to systems, methods, and computer-readable medium for providing a tactile response. A document that includes visual data is received. Change data for the visual data that indicates changes in data values of the visual data from a previous time is received. The visual data is rendered. An indication that a section of the document is selected is received. The section includes a first visual data. A change of the first visual data is determined from the change data. A tactile response unit is controlled to provide a tactile response based on the change of the first visual data.