WO2011006384A1 - 一种移动终端及其实现振动模式的方法 - Google Patents
一种移动终端及其实现振动模式的方法 Download PDFInfo
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- WO2011006384A1 WO2011006384A1 PCT/CN2010/071998 CN2010071998W WO2011006384A1 WO 2011006384 A1 WO2011006384 A1 WO 2011006384A1 CN 2010071998 W CN2010071998 W CN 2010071998W WO 2011006384 A1 WO2011006384 A1 WO 2011006384A1
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- WIPO (PCT)
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- pwm pulse
- vibration
- dbb
- mobile terminal
- pwm
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B06—GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS IN GENERAL
- B06B—METHODS OR APPARATUS FOR GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS OF INFRASONIC, SONIC, OR ULTRASONIC FREQUENCY, e.g. FOR PERFORMING MECHANICAL WORK IN GENERAL
- B06B1/00—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency
- B06B1/02—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy
- B06B1/0207—Driving circuits
- B06B1/0223—Driving circuits for generating signals continuous in time
- B06B1/023—Driving circuits for generating signals continuous in time and stepped in amplitude, e.g. square wave, 2-level signal
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B06—GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS IN GENERAL
- B06B—METHODS OR APPARATUS FOR GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS OF INFRASONIC, SONIC, OR ULTRASONIC FREQUENCY, e.g. FOR PERFORMING MECHANICAL WORK IN GENERAL
- B06B2201/00—Indexing scheme associated with B06B1/0207 for details covered by B06B1/0207 but not provided for in any of its subgroups
- B06B2201/70—Specific application
Definitions
- the present invention relates to the field of communications, and in particular, to a mobile terminal and a method for implementing the vibration mode. Background technique
- the technical problem to be solved by the present invention is to provide a mobile terminal and a method for realizing the vibration mode thereof to reduce the power consumption of the mobile terminal during the vibration process.
- the present invention provides a method for a mobile terminal to implement a vibration mode, including:
- the data baseband signal processor DBB When the mobile terminal activates the vibration mode according to the user operation, the data baseband signal processor DBB outputs a pulse width modulated PWM pulse during each vibration period to control the motor to vibrate within the PWM pulse width.
- the DBB outputs PWM pulses having the same or different duty cycles during different vibration periods.
- the method further includes: the mobile terminal pre-configuring a configuration parameter of a plurality of levels of PWM pulses, wherein a duty ratio of each level of the PWM pulse is proportional to its level or Inverse ratio
- the DBB sequentially outputs the PWM pulse in the order of the PWM pulse level from large to small or from small to large in each vibration period.
- the method further comprises: after sequentially outputting all levels of PWM pulses, the DBB repeatedly outputs all levels of PWM pulses until the mobile terminal exits the vibration mode.
- the average operating current of the motor during each vibration period is less than or equal to the normal operating current of the motor.
- the present invention provides a mobile terminal comprising a data baseband signal processor DBB, a connection module and a motor which are sequentially connected, wherein:
- the DBB is configured to: when the mobile terminal enables the vibration mode, output a pulse width modulated PWM pulse to the connection module during each vibration period;
- connection module is configured to: conduct within a PWM pulse width during a vibration period, and provide an operating current to the motor when conducting;
- the motor is configured to: vibrate when the connection module is turned on.
- the mobile terminal further includes a PWM pulse configuration module connected to the DBB, the PWM pulse configuration module is configured to: store a configuration parameter of the PWM pulse, wherein the configuration parameter of the PWM pulse includes at least a duty ratio;
- the DBB is further configured to: read a PWM pulse configuration parameter in the PWM pulse configuration module, and output a PWM pulse according to the read PWM pulse configuration parameter.
- the mobile terminal further includes a PWM pulse configuration module connected to the DBB, and the PWM pulse configuration module is configured to: store configuration parameters of multiple levels of PWM pulses, wherein the configuration parameters include at least a duty ratio , the duty cycle of each level of PWM pulse is proportional to or inversely proportional to its level;
- the DBB is further configured to: sequentially read configuration parameters of each PWM pulse according to the level of the PWM pulse from large to small or from small to large in different vibration periods, and according to the configuration of the read PWM pulse Parameter, output PWM pulse.
- the DBB is further configured to: repeatedly output all levels of PWM pulses until the mobile terminal exits the vibration mode.
- the DBB is further configured to: output a PWM pulse such that the average operating current of the motor during each vibration period is less than or equal to the normal operating current of the motor.
- the technical solution of the present invention maximizes the average operating current of the motor under the condition that the vibration function of the user is not normally used, thereby maximizing the standby time of the mobile phone.
- FIG. 1( a ) is a schematic diagram of a current waveform of a motor vibration when an existing mobile terminal activates a vibration mode
- FIG. 1( b ) is a schematic diagram of a GPIO output waveform of a DBB when a mobile terminal activates a vibration mode according to an embodiment of the present invention
- 1(c) is a schematic diagram showing an average current waveform of a motor vibration when a mobile terminal activates a vibration mode in an embodiment of the present invention
- FIG. 2 is a schematic structural diagram of a mobile terminal in this embodiment
- FIG. 3 is a flow chart of the vibration of the mobile terminal shown in FIG. 2;
- FIG. 4 is a software flow diagram of a mobile terminal implementing vibration in a specific application. Preferred embodiment of the invention
- the main idea of the present invention is to control the intermittent vibration of the motor by the conduction and the cut-off of the triode or the thyristor of the mobile terminal in the prior art (that is, the motor vibrates, stops, vibrates, stops, and cycles. Reciprocating, until the stop time of the vibration mode arrives or the user stops the vibration mode manually, the motor stops the intermittent vibration), specifically, a GPIO of the DBB (Digital Baseband, Data Baseband Signal Processor) chip in the mobile terminal (General The Purpose Input Output, which is connected to the base of the triode or the gate of the thyristor, controls the GPIO output high level when it reaches the vibration period of the mobile terminal (ie, the period during which the motor vibration is required).
- DBB Digital Baseband, Data Baseband Signal Processor
- the motor starts to vibrate; otherwise, when the vibration pause period of the mobile terminal is reached (ie, the period of time when the motor is not required to vibrate), the GPIO output is controlled to a low level, the transistor or the thyristor is turned off, and the motor stops vibrating.
- the triode or the thyristor is continuously turned on, the motor always works at the maximum current state, and the current waveform diagram when the motor vibrates is as shown in Fig. 1(a).
- PWM Pulse Width Modulation
- the size of the motor can be adjusted by the PWM pulse output by the GPIO.
- the average operating current of the motor can be gradually changed during different vibration periods to achieve the actual use effect without affecting the vibration, and can save a lot of motor vibration.
- the purpose of the operating current, at this time, the DBB GPIO output waveform is shown in Figure 1 (b), the average current waveform of the motor vibration is shown in Figure 1 (c).
- a mobile terminal has a power-saving vibration mode, and its structure is as shown in FIG. 2, which includes a DBB, a connection module and a motor which are sequentially connected, and may also include a PWM pulse configuration module connected to the DBB. The functions of each module are described below.
- the DBB is set to output a PWM pulse through the GPIO during the vibration period when the vibration mode is enabled in the mobile terminal. Further, the DBB can read the PWM pulse configuration parameter in the PWM pulse configuration module, and configure parameters according to the read PWM pulse. Outputting a PWM pulse during a vibration period, wherein the PWM pulse configuration parameter includes at least a duty ratio;
- the DBB control connection module outputs different levels of PWM pulses in different vibration periods; in other embodiments, the DBB can also control the same PWM pulse of the GPIO output of the connection module, wherein the same PWM pulse accounts for at least The air ratio is the same.
- the connection module is generally implemented by a triode or a thyristor for supplying an operating current to the motor. Specifically, during the vibration period, since the GPIO of the DBB outputs a PWM pulse, the triode or the thyristor is turned on within the PWM pulse width during the vibration period to Providing an operating current to the motor, wherein the triode or the thyristor is turned on within the PWM pulse width during the vibration period, that is, the triode Or the thyristor rapidly alternately turns on and off during the vibration period. Therefore, the average operating current of the motor during the entire vibration period is less than or equal to the normal operating current of the motor;
- the PWM pulse configuration module is configured to save the PWM pulse configuration parameter, and the PWM pulse configuration parameter includes at least the duty ratio.
- the PWM pulse configuration module stores different levels of PWM pulse configuration parameters, and each level of the PWM pulse The duty cycle is proportional or inversely proportional to its level, where the width and frequency of the PWM pulses of each level can be adjusted.
- the configuration parameters of the same PWM pulse can also be saved in the PWM pulse configuration module.
- Step 301 When the mobile terminal starts the vibration mode, in the first vibration period of the mobile terminal, the DBB controls the GPIO to output the first-stage PWM pulse to the triode or the thyristor, that is, the triode or the thyristor under the control of the first-stage PWM pulse, Alternating on and off in one vibration period, at this time, the average operating current of the motor is the first stage current;
- Step 302 The triode or the thyristor enters the second vibration period, and the DBB controls the GPIO to output the second-stage PWM pulse to the triode or the thyristor, that is, the triode or the thyristor is alternately turned on and off in the second vibration period under the control of the second-stage PWM pulse.
- the average operating current of the motor is the second-stage current
- Step 303 The triode or the thyristor enters the third vibration period, and the DBB controls the GPIO to output the third-stage PWM pulse to the triode or the thyristor, that is, the triode or the thyristor at the third stage. Under the PWM pulse control, it alternately turns on and off during the third vibration period.
- the average operating current of the motor is the third-stage current;
- Step 304 The triode or the thyristor enters the fourth vibration period, and the DBB controls the GPIO to output the fourth-stage PWM pulse to the triode or the thyristor, that is, the triode or the thyristor in the fourth stage. Under the PWM pulse control, it alternately turns on and off during the fourth vibration period. At this time, the average operating current of the motor is the fourth-stage current;
- Step 305 The triode or the thyristor enters a fifth vibration period, and the DBB controls the GPIO to output a high level to the triode or the thyristor, that is, the triode or the thyristor is alternately turned on and off in the fifth vibration period under the control of the fifth-stage PWM pulse.
- the average operating current of the motor is the fifth-order current.
- Step 306 The mobile terminal repeatedly performs the operations of the above steps 301 to 305 in the next vibration period, and cycles back and forth until the vibration time arrives or the user stops the vibration, and the process ends.
- the average operating current of the motor during each vibration period / ⁇ ⁇ / ⁇ , where is the actual operating current of the motor during the vibration period (ie, the normal operating current of the motor), for the motor during the vibration period
- the actual working time, r is the duration of the vibration cycle
- / is the average operating current of the motor during all vibration cycles
- the average operating current is less than or equal to the normal operating current of the motor.
- the width and frequency of the PWM pulses of each stage can be adjusted, and the time of conduction and cutoff of the corresponding controlled transistor or thyristor also changes, and the average operating current of the corresponding motor is also changed and adjusted.
- the average operating current of the stage can also be freely adjusted by adjusting the duty cycle of the PWM pulses of each stage (specifically, the maximum current is multiplied by a ratio of 0 to 100%).
- the average operating current of the motor is stepwise. As shown in Fig. 1 (b) and Fig. 1 (c), it is estimated that the average operating current of the motor realized in this embodiment is about 0 to 50% smaller than the operating current of the motor of the general mobile terminal.
- the DBB of the mobile terminal can also control the operating current of the motor to be gradually weakened by different levels of PWM pulses, and then reciprocate from strong to weak, that is, after the completion of step 305, after the triode or thyristor enters.
- the DBB sequentially controls the GPIO output pulse of the triode or thyristor to be the fourth-stage PWM pulse, the third-stage PWM pulse, and the second-stage PWM pulse until the first-stage PWM pulse, so that the cycle is repeated.
- the mobile terminal controls the GPIO of the triode or the thyristor to output the same PWM pulse during each vibration period.
- the average operating current of the motor is the same in all vibration periods, wherein the motor is in all vibration periods.
- the average operating current within is less than or equal to the normal operating current of the motor.
- the specific implementation of the above process can use a FOR loop, as shown in FIG. 4, so that the duty cycle of the output PWM waveform of the GPIO that turns on the transistor or the thyristor is step-by-step enhanced, and the vibration intensity of the motor can be realized. Step-by-step enhancement, repeated looping effect.
- the average operating current of the motor in the technical solution of the present invention is less than or equal to the normal working current of the motor, so the effect of power saving is very obvious, and the specific proportion of power saving can also pass the PWM pulse.
- the duty cycle is adjusted and adjusted at any time.
- the average operating current of the motor is increased step by step in different vibration periods, that is, the intensity of the vibration is increased step by step, thereby more in line with user habits and improving the user experience.
- the present invention provides a mobile terminal and a method for realizing the vibration mode thereof, which can reduce the average operating current of the motor without affecting the normal use of the vibration function of the user, thereby reducing the power consumption of the mobile terminal during the vibration process. .
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Description
一种移动终端及其实现振动模式的方法
技术领域
本发明涉及到通讯领域, 特別涉及一种移动终端及其实现振动模式的方 法。 背景技术
随着 3G技术的快速发展, 移动终端, 比如手机, 不仅仅是一种通讯工 具, 逐渐发展成为集通讯、 音乐、 拍照、 摄像以及上网、 下载等多功能的产 品, 随着功能的逐渐增多, 手机的功耗也随之快速增大, 如何省电成为手机 设计的一个难点。 其中, 手机的振动设计一般是通过手机内部的一个马达转 动实现的, 而开启振动模式后马达会以恒定频率连续间歇性振动, 直到振动 时间结束或用户有操作导致其振动停止。 因此手机启用振动模式时, 极大地 损耗了手机的电力。 发明内容
本发明所要解决的技术问题是, 提供一种移动终端及其实现振动模式的 方法, 以降低移动终端在振动过程中的耗电量。
为了解决上述技术问题,本发明提供一种移动终端实现振动模式的方法, 包括:
移动终端根据用户操作启用振动模式时, 在各振动周期内, 数据基带信 号处理器 DBB输出脉冲宽度调制 PWM脉冲,控制马达在所述 PWM脉冲宽 度内振动。
优选地, 在 DBB输出 PWM脉沖的步骤中, 在不同的振动周期, DBB 输出具有相同或者不同占空比的 PWM脉冲。
优选地, 所述方法还包括: 所述移动终端事先配置多个级别的 PWM脉 沖的配置参数, 其中, 各个级别的 PWM脉冲的占空比与其级别成正比或者
反比;
在 DBB输出 PWM脉冲的步驟中, 所述 DBB在各振动周期按照 PWM 脉冲的级别从大到小或者从小到大的顺序依次输出 PWM脉冲。
优选地,所述方法还包括:所述 DBB依次输出所有级别的 PWM脉冲后, 重复输出所有级别的 PWM脉冲, 直到所述移动终端退出振动模式。
优选地, 在 DBB输出 PWM脉冲, 控制马达振动时, 所述马达在各振动 周期内的平均工作电流小于或者等于马达的正常工作电流。
为了解决上述技术问题, 本发明提供一种移动终端, 包括依次相连的数 据基带信号处理器 DBB、 连接模块和马达, 其中:
所述 DBB设置成: 在移动终端启用振动模式时, 在各振动周期内, 输 出脉沖宽度调制 PWM脉冲给连接模块;
所述连接模块设置成: 在振动周期内 PWM脉冲宽度内导通, 导通时向 马达提供工作电流;
所述马达设置成: 在所述连接模块导通时进行振动。
优选地,所述移动终端,还包括与所述 DBB相连的 PWM脉冲配置模块, 所述 PWM脉沖配置模块设置成: 存储 PWM脉沖的配置参数, 其中, PWM脉冲的配置参数至少包括占空比;
所述 DBB还设置成:读取所述 PWM脉沖配置模块中 PWM脉冲配置参 数, 并按照所读取的 PWM脉冲配置参数, 输出 PWM脉冲。
优选地,所述移动终端,还包括与所述 DBB相连的 PWM脉冲配置模块, 所述 PWM脉沖配置模块设置成: 存储多个级别的 PWM脉沖的配置参 数, 其中, 配置参数至少包括占空比, 各个级别的 PWM脉冲的占空比与其 级别成正比或者反比;
所述 DBB还设置成: 在不同的振动周期内,按照 PWM脉沖的级別从大 到小或者从小到大的顺序依次读取各个 PWM脉冲的配置参数, 并根据所读 取的 PWM脉冲的配置参数, 输出 PWM脉冲。
优选地, 所述 DBB还设置成: 重复输出所有级別的 PWM脉冲 , 直到所 述移动终端退出振动模式。
优选地,所述 DBB还设置成:输出的 PWM脉冲使马达在各振动周期内 的平均工作电流小于或者等于马达的正常工作电流。
本发明技术方案在不影响用户正常使用振动功能的条件下, 最大程度地 P争低了马达的平均工作电流, 从而最大程度地延长手机的待机时间。 附图概述
图 1 ( a )是现有移动终端启用振动模式时马达振动的电流波形示意图; 图 1 ( b )是本发明实施例中移动终端启用振动模式时 DBB的 GPIO输 出波形示意图;
图 1 ( c )是本发明实施例中移动终端启用振动模式时马达振动的平均电 流波形示意图;
图 2是本实施例中移动终端的结构示意图;
图 3是图 2所示移动终端实现振动的流程图;
图 4为具体应用中移动终端实现振动的软件流程图。 本发明的较佳实施方式
本发明的主要构思是, 考虑到现有技术中, 由移动终端的三极管或者晶 闸管的导通与截止来控制马达间歇性振动 (即马达振动一下, 停一下, 再振 动一下, 再停一下, 循环往复, 直到振动模式的停止时间到达或用户人为停 止振动模式的时候马达才停止这种间歇性振动), 具体地, 移动终端中 DBB ( Digital Baseband,数据基带信号处理器)芯片的一个 GPIO( General Purpose Input Output, 通用输入 /输出)接在三极管的基极或晶闸管的门极, 当到达移 动终端的振动周期(即需要马达振动的时间段)时, 控制 GPIO输出高电平,
三极管或者晶闸管导通, 马达就开始振动; 反之, 当到达移动终端的振动暂 停周期时 (即无需马达振动的时间段) , 控制 GPIO输出低电平, 三极管或 者晶闸管截止, 马达就停止振动。 其中, 在移动终端的振动周期内, 三极管 或者晶闸管是持续导通的, 马达一直工作在最大电流状态, 马达振动时的电 流波形图如图 1 ( a ) 所示。
而在本发明中, 在移动终端的振动周期内,可以采用 PWM ( Pulse Width Modulation, 脉冲宽度调制)方式来控制 GPIO输出可调节的 PWM脉冲, 这 样, 在同一振动周期内, 马达的平均工作电流的大小就可由 GPIO 输出的 PWM脉冲来调节; 另外, 还可以使不同振动周期内马达的平均工作电流是 逐渐变化的, 以达到既不影响振动的实际使用效果, 又可大量节省马达振动 时的工作电流的目的, 此时, DBB的 GPIO输出波形如图 1 ( b )所示, 马达 振动时的平均电流波形图如图 1 ( c )所示。
下面结合附图及具体实施例对本发明技术方案作进一步详细说明。
一种移动终端, 具有省电的振动模式, 其结构如图 2所示, 包括依次连 接的 DBB、 连接模块和马达, 还可以包括与 DBB连接的 PWM脉冲配置模 块。 下面介绍各模块的功能。
DBB, 设置成在移动终端启用振动模式时, 在振动周期内通过 GPIO输 出 PWM脉冲, 进一步地, DBB可以读取 PWM脉冲配置模块中的 PWM脉 冲配置参数, 并根据所读取的 PWM脉冲配置参数在振动周期内输出 PWM 脉冲, 其中, PWM脉冲配置参数至少包括占空比;
在本实施例中, DBB 控制连接模块在不同的振动周期输出不同级别的 PWM脉冲; 在其他实施例中, DBB也可以控制连接模块的 GPIO输出相同 的 PWM脉冲, 其中, 相同的 PWM脉冲至少占空比相同。
连接模块,一般采用三极管或者晶闸管实现,用于向马达提供工作电流, 具体地, 在振动周期内, 由于 DBB的 GPIO输出 PWM脉冲, 因此三极管或 者晶闸管在振动周期内 PWM脉沖宽度内导通, 以向马达提供工作电流, 其 中, 由于三极管或者晶闸管在振动周期内 PWM脉冲宽度内导通, 即三极管
或者晶闸管在振动周期内快速交替地通断, 因此, 马达在整个振动周期内的 平均工作电流小于或者等于马达的正常工作电流;
PWM脉冲配置模块, 用于保存 PWM脉冲配置参数, PWM脉冲配置参 数至少包括占空比, 在本实施例中, PWM脉冲配置模块中保存有不同级别 的 PWM脉冲配置参数, 各个级别的 PWM脉冲的占空比与其级别成正比或 者反比, 其中, 各个级別的 PWM脉冲的宽度和频率均可以调整。
在其他实施例中, PWM脉冲配置模块中也可以保存同一种 PWM脉沖 的配置参数。
下面介绍上述移动终端启动振动模式后的工作过程。
在本实施例中, 移动终端中事先配置有五个级别的 PWM脉沖, 其中随 着 PWM脉冲级别的升高其占空比依次升高, 实现振动模式的过程, 如图 3 所示, 包括以下步骤:
步骤 301: 移动终端启动振动模式时, 在移动终端的第一个振动周期内, DBB控制 GPIO输出第一级 PWM脉冲给三极管或者晶闸管, 即三极管或者 晶闸管在第一级 PWM脉沖控制下, 在第一个振动周期内交替通断, 此时, 马达的平均工作电流为第一级电流;
步骤 302: 三极管或者晶闸管进入第二个振动周期, DBB控制 GPIO输 出第二级 PWM脉冲给三极管或者晶闸管, 即三极管或者晶闸管在第二级 PWM脉冲控制下, 在第二个振动周期内交替通断, 此时, 马达的平均工作 电流为第二级电流; 步骤 303: 三极管或者晶闸管进入第三个振动周期, DBB控制 GPIO输 出第三级 PWM脉沖给三极管或者晶闸管, 即三极管或者晶闸管在第三级 PWM脉冲控制下, 在第三个振动周期内交替通断, 此时, 马达的平均工作 电流为第三级电流;
步骤 304: 三极管或者晶闸管进入第四个振动周期, DBB控制 GPIO输 出第四级 PWM脉冲给三极管或者晶闸管, 即三极管或者晶闸管在第四级
PWM脉冲控制下, 在第四个振动周期内交替通断, 此时, 马达的平均工作 电流为第四级电流;
步骤 305: 三极管或者晶闸管进入第五个振动周期, DBB控制 GPIO输 出高电平给三极管或者晶闸管, 即三极管或者晶闸管在第五级 PWM脉沖控 制下, 在第五个振动周期内交替通断, 此时, 马达的平均工作电流为第五级 电流。
步骤 306:移动终端在接下来的振动周期内,重复执行上述步骤 301 ~ 305 的操作, 循环往复, 直到振动时间到达或用户中止振动, 结束本流程。
上述流程中, 马达在各振动周期内的平均工作电流 / = χ ί/Γ, 其中, 为 马达在该振动周期内的实际工作电流(即马达的正常工作电流), 为马达在 该振动周期内的实际工作时间, r为该振动周期的时长, /为马达在所有振动 周期内的平均工作电流,该平均工作电流小于或者等于马达的正常工作电流。
上述流程中各级 PWM脉冲的宽度和频率均可以调整, 相应所控制的三 极管或晶闸管的导通与截止的时间也在变化, 对应的马达的平均工作电流也 在变化调整, 可以设定的各级平均工作电流的大小亦可以通过调节各级 PWM脉冲的占空比来进行自由调整(具体为最大电流乘一个 0 ~ 100 %的比 例), 在本实施例中马达的平均工作电流是逐级增强的, 如图 1 ( b )和图 1 ( c )所示, 由此推算出本实施例所实现的马达的平均工作电流比一般移动终 端的马达的工作电流小 0〜50%左右。
在其他实施例中,移动终端的 DBB也可以通过不同级别的 PWM脉冲以 控制马达的工作电流逐级减弱, 再由强到弱循环往复, 即步骤 305执行完成 后, 在三极管或者晶闸管进入之后的各个振动周期时, DBB依次控制三极管 或者晶闸管的 GPIO输出脉冲为第四级 PWM脉冲、 第三级 PWM脉冲、 第 二级 PWM脉冲直到第一级 PWM脉冲, 如此循环往复。
还有一些实施例中, 移动终端在各振动周期内, 控制三极管或者晶闸管 的 GPIO输出相同的 PWM脉沖, 此时, 马达在所有振动周期内的平均工作 电流均相同, 其中, 马达在所有振动周期内的平均工作电流小于或者等于马 达的正常工作电流。
上述流程的具体实现可以釆用一个 FOR循环,如图 4所示,从而对使三 极管或者晶闸管导通的 GPIO的输出 PWM波形的占空比进行逐级增强的循 环控制, 即可实现马达振动强度逐级增强、 反复循环的效果。
从上述实施例可以看出, 本发明技术方案中马达的平均工作电流是小于 或等于马达的正常工作电流的, 因此省电的效果非常明显的, 而且省电的具 体比例还可以通过对 PWM脉冲的占空比的调整而随时调整。 另外, 在优选 的实施例中, 不同的振动周期内, 马达的平均工作电流是逐级增大的, 即振 动的强度是逐级增大的, 因此, 更符合用户习惯, 提高了用户体验。
尽管本发明结合特定实施例进行了描述, 但是对于本领域的技术人员来 说, 可以在不背离本发明的精神或范围的情况下进行修改和变化。 这样的修 改和变化被视作在本发明的范围和附加的权利要求书范围之内。
工业实用性 本发明提供一种移动终端及其实现振动模式的方法, 在不影响用户正常 使用振动功能的条件下, 可以降低马达的平均工作电流, 从而降低移动终端 在振动过程中的耗电量。
Claims
1、 一种移动终端实现振动模式的方法, 包括: 移动终端根据用户操作启用振动模式时, 在各振动周期内, 数据基带信 号处理器 DBB输出脉沖宽度调制 PWM脉冲,控制马达在所述 PWM脉冲宽 度内振动。
2、 如权利要求 1所述的方法, 其中:
在 DBB输出 PWM脉冲的步驟中, 在不同的振动周期, DBB输出具有 相同或者不同占空比的 PWM脉冲。
3、 如权利要求 1所述的方法, 其中:
所述方法还包括: 所述移动终端事先配置多个级别的 PWM脉冲的配置 参数, 其中, 各个级别的 PWM脉冲的占空比与其级别成正比或者反比; 在 DBB输出 PWM脉沖的步骤中, 所述 DBB在各振动周期按照 PWM 脉冲的级别从大到小或者从小到大的顺序依次输出 PWM脉冲。
4、 如权利要求 3所述的方法, 其中:
所述方法还包括: 所述 DBB依次输出所有级别的 PWM脉冲后, 重复输 出所有级别的 PWM脉冲, 直到所述移动终端退出振动模式。
5、 如权利要求 1至 4任一项所述的方法, 其中:
在 DBB输出 PWM脉冲,控制马达振动时,所述马达在各振动周期内的 平均工作电流小于或者等于马达的正常工作电流。
6、 一种移动终端, 包括依次相连的数据基带信号处理器 DBB、 连接模 块和马达, 其中:
所述 DBB设置成: 在移动终端启用振动模式时, 在各振动周期内, 输 出脉冲宽度调制 PWM脉冲给连接模块;
所述连接模块设置成: 在振动周期内 PWM脉冲宽度内导通, 导通时向 马达提供工作电流;
所述马达设置成: 在所述连接模块导通时进行振动。
7、 如权利要求 6所述的移动终端, 还包括与所述 DBB相连的 PWM脉 沖配置模块,
所述 PWM脉沖配置模块设置成: 存储 PWM脉沖的配置参数, 其中, PWM脉冲的配置参数至少包括占空比;
所述 DBB还设置成:读取所述 PWM脉冲配置模块中 PWM脉冲配置参 数, 并按照所读取的 PWM脉沖配置参数, 输出 PWM脉冲。
8、 如权利要求 6所述的移动终端, 还包括与所述 DBB相连的 PWM脉 沖配置模块,
所述 PWM脉冲配置模块设置成: 存储多个级别的 PWM脉冲的配置参 数, 其中, 配置参数至少包括占空比, 各个级别的 PWM脉冲的占空比与其 级別成正比或者反比;
所述 DBB还设置成: 在不同的振动周期内,按照 PWM脉冲的级别从大 到小或者从小到大的顺序依次读取各个 PWM脉冲的配置参数, 并根据所读 取的 PWM脉沖的配置参数, 输出 PWM脉冲。
9、 如权利要求 8所述的移动终端, 其中:
所述 DBB还设置成: 重复输出所有级别的 PWM脉冲,直到所述移动终 端退出振动模式。
10、 如权利要求 6至 9任一项所述的移动终端, 其中:
所述 DBB还设置成:输出的 PWM脉沖使马达在各振动周期内的平均工 作电流小于或者等于马达的正常工作电流。
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