Abstract: Presented herein are systems, methods, and devices for transmitting data comprising by comparing a new message with a buffered message representative of a previous message, recording an integer number of differences between the new message and the buffered message, generating a diff-word representative of the integer number of differences between the new message and the buffered message, appending the diff-word to the new message, and sending the new message with the diff-word to a receiver. The diff-word is used by the receiver to determine whether a received new message has the expected number of differences, and to determine whether to accept the new message.

Abstract: Presented herein are systems and methods for checking the integrity of data transmissions between or within one or more digital processing systems by identifying a data characteristic that is likely to change if there is an error in transmission. According to one embodiment, data messages are modified to achieve a selected characteristic according to a predetermined protocol, and changes to the data are recorded in a longitudinal check code (LCC) word, which is used by the receiver to decode the data message and restore the original data.