Method for controlling vibration of linear motor

A linear motor and controller technology, applied in the field of signal processing, can solve problems such as the difficulty of linear motor vibration control, achieve the effect of enriching vibration effects and reducing difficulty

Inactive Publication Date: 2011-05-25
QINGDAO HISENSE MOBILE COMM TECH CO LTD
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Problems solved by technology

[0005] In view of the above problems, the embodiments of the present invention provide a method for controlling the vibration of a linear motor, so as to solve the problem in the prior art that it is necessary to improve the existing mobile terminal to control the vibration of the linear motor, which makes it difficult to control the vibration of the linear motor. question

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  • Method for controlling vibration of linear motor
  • Method for controlling vibration of linear motor
  • Method for controlling vibration of linear motor

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Embodiment Construction

[0016] Embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0017] see figure 1 , is a structural schematic diagram of controlling the vibration of a linear motor in the embodiment of the present invention. In this figure, the AC97 (AC97 is the abbreviation of Audio Codec97, a kind of specification of AC97) controller in the main processing chip (such as PXA270 chip) of the upper layer application includes MODR (Modem Data Register, modem data register), AC97 controller and audio CODEC (Coder / DECoder, codec) chip through AC97_LINK bus (AC97_LINK bus includes AC_97_reset bus, AC97_SDATA_OUT bus, AC97_SYNC bus, AC97_SDATA_IN_0 bus and AC97_BITCLK bus) for information Interaction, such as the AC97 controller sends a reset signal to the CODEC chip through the AC_97_reset bus, sends stereo audio data and mono audio data through the AC97_SDATA_OUT bus, and sends a frame synchronization signal through the AC97_SYNC bu...

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Abstract

The invention discloses a method for controlling the vibration of a linear motor for solving the problem of difficult control of the vibration of the linear motor in the prior art. The method comprises: monophonic audio data are generated; a main processing chip transmits the monophonic audio data to an audio coding and decoding chip; the audio coding and decoding chip converts the monophonic audio data into an analog signal and sends the analog signal to the linear motor to control the linear motor to vibrate according to the analog signal; a processing interruption program in the main processing chip acquires the value of a pressure at a screen touch point and adjusts the output gain of the audio coding and decoding chip according to the obtained value of the pressure; and the linear motor adjusts the vibration intensity according to the gain. According to the technical scheme of the invention, the vibration of the linear motor can be realized without improving the traditional mobile terminal and the control difficulties of the vibration of the linear motor are reduced.

Description

technical field [0001] The invention relates to the technical field of signal processing, in particular to a method for controlling the vibration of a linear motor. Background technique [0002] At present, with the development of mobile terminals (such as mobile phone terminals), the vibration function has been more and more widely used. Since the vibration of mobile terminals is realized by controlling ordinary motors, it is simple and easy to implement in technology. Therefore, at present, the realization of The vibration of the mobile terminal is mainly realized by controlling the ordinary motor: the vibration of the ordinary motor is controlled by the GPIO (General Purpose Input Output) signal sent by the main processing chip. If the GPIO is at a high level, the motor vibrates, and the GPIO When low, the motor stops vibrating. However, the response speed of ordinary motors is slow, so the vibration delay is relatively large, and there are only two states of vibration a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02P7/00G05B19/04H02P7/02
Inventor 孙增国
Owner QINGDAO HISENSE MOBILE COMM TECH CO LTD
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