Microphone calibration information acquiring method and microphone
Patent Information
- Authority / Receiving Office
- CN ¡ China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- SPREADTRUM COMM (SHANGHAI) CO LTD
- Publication Date
- 2010-06-09
- Estimated Expiration
- Not applicable ¡ inactive patent
Smart Images
Figure 1 Figure 2 Figure 3
Abstract
Description
technical field
[0001] The invention relates to the global mobile communication system technology, in particular to the mobile phone calibration technology in the global mobile communication system technology. Background technique
[0002] Global System for Mobile communication (Global System for Mobile communication, referred to as "GSM"), commonly known as "GSM", is a mobile communication technology standard that originated in Europe and is the second generation of mobile communication technology. Its development purpose is to allow all parts of the world to share Using a mobile phone network standard allows users to travel around the world with a single mobile phone. my country introduced and adopted this technical standard in the early 1990s. Before that, it has been using cellular analog mobile technology, that is, the first generation of GSM technology (my country closed the analog mobile network on December 31, 2001). At present, China Mobile and China Unicom each ha...