Rendering map images using modifications of non-raster map data
US9830064B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 5, 2015 |
| Grant date | Nov 28, 2017 |
| Priority date | — |
| Expiry date | Aug 23, 2035 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L67/02
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
First map data is generated in a vector format for displaying a first map image at a client device. The first map image corresponds to a perspective of a camera panned to a certain location at a certain zoom level. The first map data is provided to the client device via a communication network. Modification data is generated at a map server in a vector format, the modification data specifying a difference between the first map data and a second map data, where the second map data is for displaying a second map image corresponding to the same perspective of the camera panned to the same location at the same zoom level. The modification data is provided to the client device via the communication network for generating the second map image using the first map data and the modification data.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.