Invention Grant
US09307045B2 Dynamically determining a tile budget when pre-fetching data in a client device
有权
在客户端设备中预取数据时动态地确定瓦片预算
- Patent Title: Dynamically determining a tile budget when pre-fetching data in a client device
- Patent Title (中): 在客户端设备中预取数据时动态地确定瓦片预算
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Application No.: US14537537Application Date: 2014-11-10
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Publication No.: US09307045B2Publication Date: 2016-04-05
- Inventor: Ronghui Zhu , Thomas Gregory Nourse
- Applicant: GOOGLE INC.
- Applicant Address: US CA Mountain View
- Assignee: GOOGLE INC.
- Current Assignee: GOOGLE INC.
- Current Assignee Address: US CA Mountain View
- Agency: Marshall, Gerstein & Borun LLP
- Main IPC: G06F15/16
- IPC: G06F15/16 ; H04L29/08 ; H04L29/06 ; G06F17/30

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.
Public/Granted literature
- US20150067040A1 DYNAMICALLY DETERMINING A TILE BUDGET WHEN PRE-FETCHING DATA IN A CLIENT DEVICE Public/Granted day:2015-03-05
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