Data Object Delivery to Resource-Constrained Devices

The patent segments the data object into multiple smaller blocks before transmission. Each block is sized to fit within the communication buffer of resource-constrained devices, preventing buffer overflows. The segmentation allows progressive delivery where devices can process and store data in manageable chunks rather than requiring the entire data object in memory at once.

The patent introduces an intermediary service that manages the segmentation, delivery, and reassembly of data blocks. This intermediary handles the complexity of block management, tracking which blocks have been delivered to which devices, and coordinating reassembly. By centralizing this logic in an intermediary service rather than implementing it in each device, the complexity is abstracted away from the resource-constrained devices themselves.

The patent merges multiple delivery operations into a single coordinated process. By segmenting data into blocks and using a publication-subscription model, the system can deliver the same data blocks to multiple devices simultaneously through a single delivery pipeline. This allows efficient batch updates of large device groups, where one data object can be distributed to hundreds or thousands of devices in parallel rather than requiring sequential individual deliveries.

The patent performs preliminary authentication by signing the entire data object before segmentation. The code signer service authenticates the complete data object upfront, creating a digital signature that is then included with the segmented blocks. This preliminary authentication approach allows resource-constrained devices to verify data integrity without needing to perform complex cryptographic operations on the entire data set, as verification can be done incrementally as blocks are received and reassembled.