Abstract: An optical system affixed to an electronic apparatus is provided, including a first optical module, a second optical module, and a third optical module. The first optical module is configured to adjust the moving direction of a first light from a first moving direction to a second moving direction, wherein the first moving direction is not parallel to the second moving direction. The second optical module is configured to receive the first light moving in the second moving direction. The first light reaches the third optical module via the first optical module and the second optical module in sequence. The third optical module includes a first photoelectric converter configured to transform the first light into a first image signal.

Abstract: Systems and methods for a local proxy for service discovery. In some embodiments, an Internet-of-Things (IoT) gateway may include: a processor; and a memory coupled to the processor, the memory including program instructions stored thereon that, upon execution by the processor, cause the IoT gateway to: retrieve, by a service discovery agent, endpoint information maintained by a service discovery server remotely located with respect to the IoT gateway; store the service endpoint information in the memory; receive a service request aimed at a service endpoint; and provide the service endpoint information, from the memory, in response to the service request.

Abstract: Systems and methods for a local proxy for service discovery. In some embodiments, an Internet-of-Things (IoT) gateway may include: a processor; and a memory coupled to the processor, the memory including program instructions stored thereon that, upon execution by the processor, cause the IoT gateway to: retrieve, by a service discovery agent, endpoint information maintained by a service discovery server remotely located with respect to the IoT gateway; store the service endpoint information in the memory; receive a service request aimed at a service endpoint; and provide the service endpoint information, from the memory, in response to the service request.

Abstract: Services associated with first and second nodes are managed. As part of the management, the first node receives a request to modify the services. A synchronization policy is identified. The synchronization policy requires that modifications attempted on the set of services on the first node also be attempted on the second node. In response to the request, an attempt is made to modify the set of services on the first node. Further, in response to the request and pursuant to the synchronization policy, the second node is caused to attempt to modify the set of services. The synchronization policy is identified as a relaxed synchronization policy. A determination is made that the attempt to modify the set of services on the second node failed. Based on identifying that the synchronization policy is a relaxed synchronization policy, the attempt to modify the set of services on the first node continues.

Abstract: Services associated with first and second nodes are managed. As part of the management, the first node receives a request to modify the services. A synchronization policy is identified. The synchronization policy requires that modifications attempted on the set of services on the first node also be attempted on the second node. In response to the request, an attempt is made to modify the set of services on the first node. Further, in response to the request and pursuant to the synchronization policy, the second node is caused to attempt to modify the set of services. The synchronization policy is identified as a relaxed synchronization policy. A determination is made that the attempt to modify the set of services on the second node failed. Based on identifying that the synchronization policy is a relaxed synchronization policy, the attempt to modify the set of services on the first node continues.