Patent ID: 9684642
Date: 2017-06-20
CPC Classifications: G06F

Claim:
1. A method for a device to update an electronic document, comprising: obtaining data update information and use record information of the electronic document, the data update information including a first position in the electronic document where an updating is to be performed, the use record information including a second position; determining whether the first position in the data update information is before the second position in the use record information; adjusting the use record information according to the data update information, if it is determined that the first position in the data update information is before the second position in the use record information; and updating the electronic document according to the data update information and the adjusted use record information, wherein when the data update information indicates a delete operation and includes a start position and an end position for the delete operation, and the use record information includes a start position and an end position, the method further comprising, in response to determining that the start position in the data update information is before the start position in the use record information, and the end position in the data update information is between the start position and the end position in the use record information: