Abstract: Program instructions and/or data used in vehicle computers can be downloaded into the vehicle from a personal computer, which obtains the information from a web server. Different types of programmed modifications can be readily downloaded into a vehicle simply by downloading the appropriate program. Once the program instructions and/or data are downloaded, they can be copied into a vehicle computer using available interfaces, such as the onboard diagnostic system connector (OBD-2) available on many vehicles.

Abstract: A memory system for limiting access of a protected portion of a memory to a predetermined accessing device. The memory system includes a memory having a protected portion. The system further includes a control unit in communicative relation with an accessing device and the memory, wherein the control unit monitors the accessing device's pattern of access to the memory in order to determine if the accessing device is the predetermined accessing device and permits only the predetermined accessing device to access the protected portion of the memory.

Abstract: A memory system for limiting access of a protected portion of a memory to a predetermined accessing device. The memory system includes a memory having a protected portion. The system further includes a control unit in communicative relation with an accessing device and the memory, wherein the control unit monitors the accessing device's pattern of access to the memory in order to determine if the accessing device is the predetermined accessing device and permits only the predetermined accessing device to access the protected portion of the memory.