The NDA is about the settlements, NOT about other company business. Per the following from Turley's note:
"Shareholders are advised that the following is the only information that will be provided by Patriot Scientific Corporation regarding the resolution of the Texas (and California) litigation that had been pending regarding the MMP portfolio patents subject to the dispute."
Obviously with additional licenses signed since, shareholder letter issued since, etc. etc, they CAN issue a dividend or do other company business.