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A method and system for calibrating a proximity sensor of a mobile phone

A technology of proximity sensors and calibration methods, applied in radio wave measurement systems, instruments, telephone communications, etc., to solve differences, reduce production costs, and ensure consistency

Active Publication Date: 2011-12-07
临沂高新人才教育发展集团有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

If the collection of samples is increased, it will not only bring labor costs during the research and development period, but also a large number of mobile phone samples will also bring prototype costs for trial production.

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  • A method and system for calibrating a proximity sensor of a mobile phone
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  • A method and system for calibrating a proximity sensor of a mobile phone

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Embodiment Construction

[0036] A mobile phone proximity sensor calibration method and system provided by the present invention, in order to make the purpose, technical solution and advantages of the present invention clearer and clearer, the present invention will be further described in detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0037] The embodiment of the present invention provides a calibration system for the proximity sensor of a mobile phone, which is mainly used for testing and calibrating the proximity sensor of the mobile phone in the daily production of the mobile phone, such as figure 1 As shown, the calibration system for the proximity sensor of a mobile phone in this embodiment includes: a PC 100 , a mobile phone with a proximity sensor 200 , and a test fixture 300 for fixing the mobile phone. A panel 310 si...

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Abstract

The invention relates to the technical field of a mobile terminal, and discloses a method and system for calibrating a proximity sensor of a mobile phone. The method comprises the steps of fixing the mobile phone with the proximity sensor on a test fixture, arranging a panel for simulating a barrier on the test fixture, and adjusting the distance between the panel and the tested mobile phone to a specified distance; connecting the mobile phone with a PC (Personal Computer); after the reception of a calibration instruction transmitted by a PC end through the mobile phone, starting the proximity sensor to induct the panel for simulating the barrier, and inducting to read out a corresponding ADC (Airborne Digital Computer) reading at the moment; and comparing the ADC reading with a preset value, judging whether the ADC reading exceeds the preset value, and if not, storing the ADC reading. According to the invention, the problem of differences between mobile phone sensors is solved, the consistency of threshold values of the mobile phone sensors is ensured, and the calibrating precision of the proximity sensor of the mobile phone is increased. Simultaneously, the test efficiency is improved, and the production cost is reduced.

Description

technical field [0001] The invention relates to the technical field of mobile terminals, in particular to a method and system for calibrating a proximity sensor of a mobile phone. Background technique [0002] Proximity sensors can well avoid misoperation of capacitive touch screens, and have been widely used in mid-to-high-end smart phones. The proximity sensor uses the principle of infrared emission and reception to realize the sensing of the target distance. Usually, after the design of a mobile phone is completed, it is necessary to calibrate the ADC reading corresponding to the sensing distance for the sensor, and this reading is also called the threshold. [0003] Due to the ±10% error of the sensor itself, coupled with the error caused by the assembly of the mobile phone and the external environment, it is difficult to achieve a consistent threshold. The calibration accuracy of the proximity sensor of the mobile phone in the prior art is poor, and the test efficienc...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04M1/24G01S7/497
Inventor 韩国涛刘练
Owner 临沂高新人才教育发展集团有限公司
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