Directional sensor interface device of mobile communication terminal and its control method

A technology of mobile communication terminal, direction sensor, applied in the direction of measuring device, telephone communication, selection device, etc.

Inactive Publication Date: 2004-10-13
LG ELECTRONICS (CHINA) R&D CENT CO LTD
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  • Description
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Problems solved by technology

[0008] However, in addition to the communication between the control unit (MSM) of the mobile communication terminal and the above-mentioned sensor control unit through SPI, for DRDY (Data Ready, data standby signal port), RESET (reset port), SSNOT (chip gate port) Waiting for 3 ports, communication must also be realized, therefore, at least 6 GPIO terminals are required on the side of the master device, which presents a difficult problem for the interface

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  • Directional sensor interface device of mobile communication terminal and its control method
  • Directional sensor interface device of mobile communication terminal and its control method
  • Directional sensor interface device of mobile communication terminal and its control method

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Embodiment Construction

[0016] Advantageous embodiments of the present invention are explained below with reference to the accompanying drawings.

[0017] figure 1 It is a structural block diagram of the direction sensor interface device of the mobile communication terminal of the present invention, and it is made of the following several parts: from the equipment (101), it serially connects the clock port and the data output port of the master equipment (100) to the clock respectively Port and data input port (MOSI); the 1st switching part (102), it is controlled by the signal output from the data standby signal port of the slave device, and the data output from the data output port of the above-mentioned slave device (101) is connected to the master device The data input port of the data input port; the 2nd switch part (103), it is controlled by the signal output from the equipment data standby signal port, and the signal output by the data output port of the above-mentioned master equipment is con...

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Abstract

The invention provides a kind of direction sensor interface device and the control method in communication terminal, it is made up of following structure: the salve device, which connects the clock port of terminal control part and data port of the master device to the clock port and data input port of sensor control part in series; the first switching part, it is controlled by data backup signal port of the slave device, and accesses the data outputted by the data output port of the slave device into the data input port of the master; the second switch part, which is controlled by the signal outputted from the backup signal port, accesses the signal outputted from the data output port of the master device into the reset end of the slave device.

Description

technical field [0001] The present invention relates to a direction sensor interface device of a mobile communication terminal and a control method thereof, in particular to a direction sensor interface of a mobile communication terminal capable of controlling the sensor control unit with a terminal control unit with a small number of ports and a control method thereof, wherein, The sensor control part performs analog / digital processing on the signal generated by the direction sensor, and the direction sensor uses the magnetic flux change of the geomagnetism sensed by the sensor or the component impedance value changed by the geomagnetism to measure the pointing angle. Background technique [0002] Generally speaking, the ASIC chip that processes the output signal of the direction sensor that measures the pointing angle is composed of the following parts: the sensor part is used to sense the magnetic flux change caused by the geomagnetism; the sensor control part is used to c...

Claims

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Application Information

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IPC IPC(8): H04B1/40G01C17/02H04M1/02H04M11/00
CPCH04B1/38H04M1/0202
Inventor 姜道佑
Owner LG ELECTRONICS (CHINA) R&D CENT CO LTD
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