Abstract: The present invention relates to a data storage and retrieval system. The system includes a at least one client device; and at least one-server. The server includes at least one memory, a processor and a log store. The client data is divided into different blocks and stored in the server. Different logs are generated for each block and stored in the log store. The storage in the server are audited for ensuring their integrity. The present invention also relates to a method used to store and retrieve data form the above system. The present invention also relates to a method used to initialize empty buffers in a storage of a system.

Abstract: The present invention relates to a data storage and retrieval system. The system includes a at least one client device; and at least one-server. The server includes at least one memory, a processor and a log store. The client data is divided into different blocks and stored in the server. Different logs are generated for each block and stored in the log store. The storage in the server are audited for ensuring their integrity. The present invention also relates to a method used to store and retrieve data form the above system. The present invention also relates to a method used to initialize empty buffers in a storage of a system.

Abstract: A transparent screen includes a microlens array. The microlens array includes microlenses that are individually rotated to reflect a projected image to a common eyebox. The microlenses may have a dichroic coating to reflect narrowband light. An automotive windshield may include an embedded microlens array as part of a head up display. Eyewear includes an eyepiece with a rotated microlens array and a projector to project content on the microlens array.