Flexible image repository for customer premises equipment

A service provider system comprising:

• physical layer circuitry configured to:
• store a plurality of images in an image repository, wherein the plurality of images are displayed in an electronic programming guide provided by a service provider to a subscriber device that receives a service from the service provider;
• processor circuitry configured to:
• tag each image in the plurality of images with a logical path comprising a client type, an image type, and an entity name, wherein the client type defines an aspect ratio, wherein the image type specifies a dimension and a resolution, and wherein the entity name identifies a specific screen in the electronic programming guide where the image displays;
• receive from the subscriber device an image update request comprising a last fetch timestamp and a subscriber identifier;
• examine each image in the plurality of images to determine a subset of the plurality of images modified since the last fetch timestamp by comparing the last fetch timestamp to a last modified timestamp of the image;
• and
• transmit the subset of the plurality of images from a caching layer that stores the plurality of images in memory to the subscriber device identified by the subscriber identifier using the logical path for each image as a cache key in the caching layer, wherein the subscriber device has a local cache that stores the plurality of images and updates the local cache based on the subset of the plurality of images.

A subscriber device that receives a service from a service provider, comprising:

• physical layer circuitry configured to:
• access a local cache that stores a plurality of images, wherein the plurality of images are displayed in an electronic programming guide provided by the service provider to the subscriber device, wherein the service provider tags each image in the plurality of images with a logical path comprising a client type that defines an aspect ratio, an image type that specifies a dimension and a resolution, and an entity name that identifies a specific screen in the electronic programming guide where the image displays;
• processor circuitry configured to:
• send an image update request comprising a last fetch timestamp and a subscriber identifier to the service provider, wherein the service provider examines each image in the plurality of images in an image repository to determine a subset of the plurality of images modified since the last fetch timestamp by comparing the last fetch timestamp to a last modified timestamp of the image;
• receive the subset of the plurality of images from the service provider, wherein the service provider transmits the subset of the plurality of images using the logical path for each image as a cache key in the caching layer;
• and
• update the local cache based on the subset of the plurality of images.