Image tile request service
US10956488B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Feb 27, 2019 |
| Grant date | Mar 23, 2021 |
| Priority date | — |
| Expiry date | Apr 12, 2039 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L67/02
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A method of obtaining an image tile from a server by a client includes a client submitting a request to a server for extracting an image tile from a compressed image file. The server controls access to the compressed image file, the compressed image file contains multiple different resolution image layers and the image tile is to be extracted from one of these image layers. The request includes the identity of the image layer and the coordinates of the image tile in the image layer. The server extracts the requested image tile directly from the image layer in the compressed image file using the request and transfers image tile to the client at the decompressed image resolution and quality such that the image tile can be displayed on a display of the client.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.