Disclosed are techniques for operation of neurostimulation or drug delivery devices to stop treatment therapy during times when the patient does not need to be treated. Advantageously, the present invention reduces battery usage and/or drug dosage during periods when treatment therapy need not be provided....http://www.google.ca/patents/US6923784?utm_source=gb-gplus-sharePatent US6923784 - Therapeutic treatment of disorders based on timing information
