Invention Grant
- Patent Title: Method and communication system for limiting the functionality of an electronic device
- Patent Title (中): 用于限制电子设备的功能的方法和通信系统
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Application No.: US12140942Application Date: 2008-06-17
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Publication No.: US08013786B2Publication Date: 2011-09-06
- Inventor: David Gildea
- Applicant: David Gildea
- Applicant Address: US CA Sunnyvale
- Assignee: Trimble Navigation Limited
- Current Assignee: Trimble Navigation Limited
- Current Assignee Address: US CA Sunnyvale
- Main IPC: G01S19/52
- IPC: G01S19/52 ; G01S11/10
Abstract:
Embodiments of the present invention recite a method and system for limiting the functionality of a mobile electronic device. In one embodiment, a Global Navigation Satellite System (GNSS) receiver configured to determine a GNSS Doppler frequency shift measurement corresponding to a GNSS signal. A control component is configured to control an operation of the mobile electronic device in response to a control signal which is generated when the GNSS Doppler frequency shift measurement is used to determine that the speed of the mobile electronic device exceeds a speed threshold.
Public/Granted literature
- US20090309787A1 METHOD AND COMMUNICATION SYSTEM FOR LIMITING THE FUNCTIONALITY OF AN ELECTRONIC DEVICE Public/Granted day:2009-12-17
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