Dynamically determining a tile budget when pre-fetching data in a client device
US9307045B2 · kind B2 · utility
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92References
20Claims
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Key dates
| Filing date | Nov 10, 2014 |
| Grant date | Apr 5, 2016 |
| Priority date | — |
| Expiry date | Nov 10, 2034 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L67/5681
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A pre-fetching map data system and method identifies a subset of map data to corresponding to one or more points of interest to be displayed on the map. The map data is stored on a remote map database in map data tiles. The pre-fetching map data system identifies those map data tiles that correspond to the one or more points of interest, where the identified pre-fetch map data tiles are sent from the remote database to a client device for cache storage. The number of pre-fetch map data tiles are determined using a tile budget that is dynamically adjusted in response to changing conditions on a client device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.