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Single board calibrating method, system and clamp for single board calibration

A calibration method and single-board technology, which is applied in the transmission system, transmission monitoring, electrical components, etc., can solve the problem of high cost and achieve the effect of cost saving

Inactive Publication Date: 2012-06-06
HUAWEI DEVICE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Embodiments of the present invention provide a single-board calibration method, system, and fixture for single-board calibration to solve the problem of high cost in the single-board calibration of terminal products in the prior art

Method used

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  • Single board calibrating method, system and clamp for single board calibration
  • Single board calibrating method, system and clamp for single board calibration
  • Single board calibrating method, system and clamp for single board calibration

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Embodiment Construction

[0029] Hereinafter, embodiments according to the present invention will be described in detail with reference to the accompanying drawings.

[0030] Embodiment 1 of the present invention provides a board calibration method, the implementation process is as follows figure 2 shown, including the following steps:

[0031] Step s101: Calibrate the power of the transmit signal on the transmit path of the single board;

[0032] Step s102: converting the transmit signal on the transmit path into a signal of the frequency and power required by the receive path and providing it to the receive path;

[0033] Step s103: Calibrate the power of the signal received on the receiving path.

[0034] Embodiment 2 of the present invention provides a method for calibrating a single board of a GSM mobile phone. The frequency of the signal transmitted by the single board of the GSM mobile phone is 890MHZ, and the frequency of the received signal is 935MHZ. The schematic diagram of the circuit co...

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Abstract

The invention provides a veneer calibration method which is suitable for a veneer provided with a transmitting channel and a receiving channel. The method comprises the following steps: calibrating the power of a transmitting signal on the transmitting channel of the veneer; converting the transmitting signal on the transmitting veneer into a signal with the required frequency and the required power of the receiving channel; providing the signal for the receiving channel; and calibrating the power of the received signal on the receiving channel. The invention further provides a veneer calibrating system and a clamp used for calibrating the veneer. The veneer can be calibrated by the clamp and a spectrum analyzer, without the need of using a CMU, thereby saving cost.

Description

technical field [0001] The invention relates to a single board calibration method and system, in particular to a single board calibration method and system with a transmitting path and a receiving path and a fixture for single board calibration. Background technique [0002] Due to factors such as device inconsistency, temperature changes, and device aging, even the same design based on the same platform will exhibit different electrical properties. In order to eliminate this effect, each mobile phone must measure and calculate these parameters before leaving the factory to obtain some parameter error data, and store these error data in a certain storage medium (usually EEPROM). , the CPU will read the data and use a certain algorithm to compensate the parameters that need to be compensated. In the production test process, the process of measuring and calculating the data that needs to be compensated and corrected and storing it in EEPROM is called calibration. [0003] In...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04B17/00H04B17/11H04B17/21
Inventor 雷海龙陈大雷
Owner HUAWEI DEVICE CO LTD