WO2012119525A1 - 一种手机及其按键检测装置 - Google Patents

一种手机及其按键检测装置 Download PDF

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Publication number
WO2012119525A1
WO2012119525A1 PCT/CN2012/071835 CN2012071835W WO2012119525A1 WO 2012119525 A1 WO2012119525 A1 WO 2012119525A1 CN 2012071835 W CN2012071835 W CN 2012071835W WO 2012119525 A1 WO2012119525 A1 WO 2012119525A1
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WIPO (PCT)
Prior art keywords
port
level signal
mobile phone
interrupt
button
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PCT/CN2012/071835
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English (en)
French (fr)
Inventor
杨金华
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惠州Tcl移动通信有限公司
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Priority to US13/997,142 priority Critical patent/US8989801B2/en
Publication of WO2012119525A1 publication Critical patent/WO2012119525A1/zh

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/02—Constructional features of telephone sets
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/02—Input arrangements using manually operated switches, e.g. using keyboards or dials
    • G06F3/0202—Constructional details or processes of manufacture of the input device
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F2203/00—Indexing scheme relating to G06F3/00 - G06F3/048
    • G06F2203/041—Indexing scheme relating to G06F3/041 - G06F3/045
    • G06F2203/04104—Multi-touch detection in digitiser, i.e. details about the simultaneous detection of a plurality of touching locations, e.g. multiple fingers or pen and finger
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/02—Constructional features of telephone sets
    • H04M1/23—Construction or mounting of dials or of equivalent devices; Means for facilitating the use thereof

Definitions

  • the present invention relates to the field of mobile communications, and in particular to a mobile phone and a button detecting device thereof.
  • buttons are pressed simultaneously to perform certain functions. For example, when a certain two buttons are pressed at the same time, the functions such as locking the keyboard or unlocking the keyboard are performed.
  • the baseband chip of the existing mobile phone does not support the detection of simultaneous pressing of two or more buttons, and the application that can be started only when the button is pressed at the same time cannot be realized.
  • the technical problem to be solved by the present invention is to provide a mobile phone and a button detecting device thereof to support detection when two or more buttons in a mobile phone keyboard are simultaneously pressed.
  • the handset includes at least two buttons, a baseband chip, a resistor, and at least two diodes.
  • the baseband chip includes at least two first ports, at least two second ports, and an interrupt port, wherein each of the first ports respectively outputs a first level signal, and corresponds to one end of a button, and each second port outputs The second level signal is corresponding to the other end of the connected button.
  • One end of the resistor is connected to the interrupt port, and the other end is connected to the reference level.
  • the interrupt port generates an interrupt when it receives the reference level.
  • each diode is connected between a first port and a corresponding button, and the cathode is connected between the interrupt port and the resistor, wherein the diode is turned on under the action of the first level signal and the reference level, and is in the second The level signal and the reference level are turned off.
  • the first level signal is a high level signal
  • the second level signal is a low level signal
  • the reference level is a ground level
  • the first port is a column scan port of the baseband chip
  • the second port is a row scan port of the baseband chip.
  • the handset includes at least two buttons, a baseband chip, a resistor, and at least two switching elements.
  • the baseband chip includes at least two first ports, at least two second ports, and an interrupt port, wherein each of the first ports respectively outputs a first level signal, and corresponds to one end of a button, and each second port outputs The second level signal is corresponding to the other end of the connected button.
  • One end of the resistor is connected to the interrupt port and the other end is connected to the reference level.
  • each switching element is connected between a first port and a corresponding button, and the other end is connected between the interrupt port and the resistor, wherein the switching element is turned on under the action of the first level signal and the reference level, and It is turned off by the action of the second level signal and the reference level.
  • the first level signal is a high level signal
  • the second level signal is a low level signal
  • the reference level is a ground level
  • the switching element is a diode, the anode of the diode is connected between the first port and the corresponding button, and the cathode is connected between the interrupt port and the resistor.
  • the first port is a column scan port of the baseband chip
  • the second port is a row scan port of the baseband chip.
  • the interrupt port generates an interrupt when receiving the reference level.
  • a button detecting device for a mobile phone, the mobile phone comprising at least two buttons, the button detecting device comprising a baseband chip, a resistor and at least two switching elements.
  • the baseband chip includes at least two first ports, at least two second ports, and an interrupt port, wherein each of the first ports respectively outputs a first level signal, and corresponds to one end of a button, and each second port outputs The second level signal is corresponding to the other end of the connected button.
  • One end of the resistor is connected to the interrupt port and the other end is connected to the reference level.
  • each switching element is connected between a first port and a corresponding button, and the other end is connected between the interrupt port and the resistor, wherein the switching element is turned on under the action of the first level signal and the reference level, and It is turned off by the action of the second level signal and the reference level.
  • the first level signal is a high level signal
  • the second level signal is a low level signal
  • the reference level is a ground level
  • the switching element is a diode, the anode of the diode is connected between the first port and the corresponding button, and the cathode is connected between the interrupt port and the resistor.
  • the first port is a column scan port of the baseband chip
  • the second port is a row scan port of the baseband chip.
  • the interrupt port generates an interrupt when receiving the reference level.
  • the invention has the beneficial effects that the mobile phone and the button detecting device of the invention can support the detection when two or more buttons in the mobile phone keyboard are simultaneously pressed, which is different from the prior art.
  • FIG. 1 is a circuit diagram of an embodiment of a handset of the present invention.
  • the mobile phone of the present invention includes three buttons KEY1, KEY2 and KEY3.
  • the button detecting device of the mobile phone comprises: a baseband chip A, a resistor R and three switching elements D1, D2 and D3.
  • the button detecting device of the mobile phone generates an interruption when the three buttons KEY1, KEY2, and KEY3 are simultaneously pressed, thereby triggering the reservation function of the mobile phone.
  • the baseband chip A includes three first ports COL1, COL2 and COL3, three second ports ROW1, ROW2 and ROW3, and an interrupt port EINT.
  • the interrupt port EINT is connected to one end of the resistor R, and the other end of the resistor R is connected to the reference level Vcc.
  • the interrupt port EINT generates an interrupt upon receiving the reference level Vcc.
  • the first ports COL1, COL2 and COL3 respectively output a first level signal
  • the second ports ROW1, ROW2 and ROW3 respectively output a second level signal.
  • the first ports COL1, COL2, and COL3 are the column scan ports of the baseband chip A
  • the second ports ROW1, ROW2, and ROW3 are the row scan ports of the baseband chip A
  • the first level signal is a high level signal
  • the second level signal is a low level signal
  • the reference level Vcc is a ground level.
  • the first port COL1 is connected to one end of the button KEY1, and the second port ROW1 is connected to the other end of the button KEY1.
  • the first port COL1 is short-circuited with the second port ROW1, and the level signal at the first port COL1 is It changes from a high level signal to a low level signal.
  • the first port COL2 is connected to one end of the button KEY2, and the second port ROW2 is connected to the other end of the button KEY2.
  • the first port COL2 is short-circuited with the second port ROW2, and the level signal at the first port COL2 is It changes from a high level signal to a low level signal.
  • the first port COL3 is connected to one end of the button KEY3, and the second port ROW3 is connected to the other end of the button KEY3.
  • the first port COL3 is short-circuited with the second port ROW3, and the level signal at the first port COL3 is It changes from a high level signal to a low level signal.
  • the switching elements D1, D2, and D3 are diodes.
  • the anode of the switching element D1 is connected between the first port COL1 and the corresponding button KEY1, and the cathode is connected between the interrupt port EINT and the resistor R.
  • the anode of the switching element D2 is connected between the first port COL2 and the corresponding button KEY2, and the cathode is connected between the interrupt port EINT and the resistor R.
  • the anode of the switching element D3 is connected between the first port COL3 and the corresponding button KEY3, and the cathode is connected between the interrupt port EINT and the resistor R.
  • switching elements D1, D2 and D3 are turned on by a high level signal (ie, a first level signal) and a ground level (ie, a reference level Vcc), and are at a low level signal (ie, a second power)
  • the flat signal) and the ground level are cut off.
  • switching elements D1, D2, and D3 may also be implemented by other elements having the functions described above.
  • the interrupt port EINT does not generate an interrupt
  • the baseband chip A determines that the keys KEY1, KEY2, and KEY3 are not simultaneously pressed, and thus does not trigger the reservation function of the mobile phone.
  • the three buttons KEY1, KEY2 and KEY3 are simultaneously pressed, the three first ports COL1, COL2 and COL3 are respectively shorted with the three second ports ROW1, ROW2 and ROW3, and the first ports COL1, COL2 and COL3
  • the level signal changes from a high level signal to a low level signal. Therefore, the switching elements D1, D2, and D3 are turned off by the low level signal and the ground level.
  • the interrupt port EINT is connected to the ground level through the resistor, receives the ground level, and generates an interrupt. Since the interrupt port EINT generates an interrupt, the baseband chip A judges that the keys KEY1, KEY2, and KEY3 are simultaneously pressed, thereby triggering the mobile phone reservation function.
  • buttons KEY1 and KEY2 are simultaneously pressed at the same time.
  • the detection of the single button press of the mobile phone of the present invention can be implemented by a conventional button detection system or method, and details are not described herein again.
  • the mobile phone of the present invention is not limited to the detection that only three buttons can be simultaneously pressed, and the number of buttons can be two or more. For example, by canceling the switching element D3, the detection when the keys KEY1 and KEY2 are simultaneously pressed can be realized.
  • the invention has the beneficial effects that the mobile phone and the button detecting device of the invention can support the detection when two or more buttons in the mobile phone keyboard are simultaneously pressed, which is different from the prior art.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Human Computer Interaction (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Signal Processing (AREA)
  • Input From Keyboards Or The Like (AREA)
  • Telephone Set Structure (AREA)
  • Push-Button Switches (AREA)

Abstract

本发明公开了一种手机及其按键检测装置。该手机包括至少两个按键、基带芯片、电阻以及至少两个开关元件。基带芯片包括至少两个第一端口、至少两个第二端口以及一中断端口。每一第一端口分别输出第一电平信号，并对应连接一按键的一端，每一第二端口分别输出第二电平信号，并对应连接一按键的另一端。电阻的一端连接中断端口，另一端连接参考电平。每一开关元件的一端连接于一第一端口与对应的按键之间，另一端连接于中断端口与电阻之间。开关元件在第一电平信号和参考电平的作用下导通，并在第二电平信号和参考电平的作用下截止。通过上述方式，本发明的手机及其按键检测装置能够支持手机键盘中的两个或多个按键同时按下时的检测。

Description

一种手机及其按键检测装置
【技术领域】
本发明涉及移动通讯领域，特别是涉及一种手机及其按键检测装置。
【背景技术】
随着通讯技术的不断发展，手机已经成为人们生活中不可缺少的部分。目前手机技术的发展越来越快，各种应用越来越多，功能也更加齐全。就像电脑一样，手机的使用过程中往往会需要用到两个或多个按键同时按下来完成某些功能。比如，设定某两个按键同时按下时为锁键盘或解锁键盘等功能。然而，现有手机的基带芯片并不支持两个或多个按键同时按下的检测，无法实现需要按键同时按下才可启动的应用。
【发明内容】
本发明主要解决的技术问题是提供一种手机及其按键检测装置，以支持手机键盘中的两个或多个按键同时按下时的检测。
为解决上述技术问题，本发明采用的一个技术方案是：提供一种手机。该手机包括至少两个按键、基带芯片、电阻以及至少两个二极管。基带芯片包括至少两个第一端口、至少两个第二端口以及一中断端口，其中每一第一端口分别输出第一电平信号，并对应连接一按键的一端，每一第二端口分别输出第二电平信号，并对应连接一按键的另一端。电阻的一端连接中断端口，另一端连接参考电平，中断端口在接收到参考电平时产生中断。每一二极管的正极连接于一第一端口与对应的按键之间，负极连接于中断端口与电阻之间，其中二极管在第一电平信号和参考电平的作用下导通，并在第二电平信号和参考电平的作用下截止。
其中，第一电平信号为高电平信号，第二电平信号为低电平信号，参考电平为地电平。
其中，第一端口为基带芯片的列扫描端口，第二端口为基带芯片的行扫描端口。
为解决上述技术问题，本发明采用的另一个技术方案是：提供一种手机。该手机包括至少两个按键、基带芯片、电阻以及至少两个开关元件。基带芯片包括至少两个第一端口、至少两个第二端口以及一中断端口，其中每一第一端口分别输出第一电平信号，并对应连接一按键的一端，每一第二端口分别输出第二电平信号，并对应连接一按键的另一端。电阻的一端连接中断端口，另一端连接参考电平。每一开关元件的一端连接于一第一端口与对应的按键之间，另一端连接于中断端口与电阻之间，其中开关元件在第一电平信号和参考电平的作用下导通，并在第二电平信号和参考电平的作用下截止。
其中，第一电平信号为高电平信号，第二电平信号为低电平信号，参考电平为地电平。
其中，开关元件为二极管，二极管的正极连接于第一端口与对应的按键之间，负极连接于中断端口与电阻之间。
其中，第一端口为基带芯片的列扫描端口，第二端口为基带芯片的行扫描端口。
其中，中断端口在接收到参考电平时产生中断。
为解决上述技术问题，本发明采用的另一个技术方案是：提供一种手机的按键检测装置，该手机包括至少两个按键，该按键检测装置包括基带芯片、电阻以及至少两个开关元件。基带芯片包括至少两个第一端口、至少两个第二端口以及一中断端口，其中每一第一端口分别输出第一电平信号，并对应连接一按键的一端，每一第二端口分别输出第二电平信号，并对应连接一按键的另一端。电阻的一端连接中断端口，另一端连接参考电平。每一开关元件的一端连接于一第一端口与对应的按键之间，另一端连接于中断端口与电阻之间，其中开关元件在第一电平信号和参考电平的作用下导通，并在第二电平信号和参考电平的作用下截止。
其中，第一电平信号为高电平信号，第二电平信号为低电平信号，参考电平为地电平。
其中，开关元件为二极管，二极管的正极连接于第一端口与对应的按键之间，负极连接于中断端口与电阻之间。
其中，第一端口为基带芯片的列扫描端口，第二端口为基带芯片的行扫描端口。
其中，中断端口在接收到参考电平时产生中断。
本发明的有益效果是：区别于现有技术的情况，本发明的手机及其按键检测装置能够支持手机键盘中的两个或多个按键同时按下时的检测。
【附图说明】
图1是本发明的一种手机的实施例的电路图。
【具体实施方式】
参阅图1，图1是本发明的一种手机的实施例的电路图。本发明的手机包括三个按键KEY1、KEY2与KEY3。该手机的按键检测装置包括：基带芯片A、电阻R以及三个开关元件D1、D2与D3。在本实施例中，该手机的按键检测装置在三个按键KEY1、KEY2与KEY3同时按下时产生中断，进而触发手机的预订功能。
在本实施例中，基带芯片A包括三个第一端口COL1、COL2与COL3、三个第二端口ROW1、ROW2与ROW3以及一中断端口EINT。中断端口EINT连接电阻R的一端，电阻R的另一端连接参考电平Vcc。中断端口EINT在接收到参考电平Vcc时产生中断。第一端口COL1、COL2与COL3分别输出第一电平信号，第二端口ROW1、ROW2与ROW3分别输出第二电平信号。在本实施例中，第一端口COL1、COL2与COL3为基带芯片A的列扫描端口，第二端口ROW1、ROW2与ROW3为基带芯片A的行扫描端口，第一电平信号为高电平信号，第二电平信号为低电平信号，参考电平Vcc为地电平。
第一端口COL1连接按键KEY1的一端，第二端口ROW1连接按键KEY1的另一端，当按键KEY1被按下时，第一端口COL1与第二端口ROW1短接，第一端口COL1处的电平信号由高电平信号变为低电平信号。第一端口COL2连接按键KEY2的一端，第二端口ROW2连接按键KEY2的另一端，当按键KEY2被按下时，第一端口COL2与第二端口ROW2短接，第一端口COL2处的电平信号由高电平信号变为低电平信号。第一端口COL3连接按键KEY3的一端，第二端口ROW3连接按键KEY3的另一端，当按键KEY3被按下时，第一端口COL3与第二端口ROW3短接，第一端口COL3处的电平信号由高电平信号变为低电平信号。
在本实施例中，开关元件D1、D2与D3为二级管。开关元件D1的正极连接于第一端口COL1与对应的按键KEY1之间，负极连接于中断端口EINT与电阻R之间。开关元件D2的正极连接于第一端口COL2与对应的按键KEY2之间，负极连接于中断端口EINT与电阻R之间。开关元件D3的正极连接于第一端口COL3与对应的按键KEY3之间，负极连接于中断端口EINT与电阻R之间。其中，开关元件D1、D2与D3在高电平信号（即第一电平信号）和地电平（即参考电平Vcc）的作用下导通，并在低电平信号（即第二电平信号）和地电平的作用下截止。在其他实施例中，开关元件D1、D2与D3还可以由具有上述功能的其他元件实现。
参阅图1，当三个按键KEY1、KEY2与KEY3中有任意一按键未按下时，该按键所对应的第一端口COL1、COL2或COL3与该按键所对应的第二端口ROW1、ROW2或ROW3未短接，即该按键所对应的第一端口COL1、COL2或COL3处的电平信号为高电平信号。因此，该按键所对应的开关元件D1、D2或D3在高电平信号和地电平的作用下导通，使中断端口EINT接收到第一端口COL1、COL2与COL3输出的高电平信号。此时，中断端口EINT不产生中断，基带芯片A判断按键KEY1、KEY2与KEY3未同时按下，进而不会触发手机的预订功能。当三个按键KEY1、KEY2与KEY3被同时按下时，三个第一端口COL1、COL2与COL3分别与三个第二端口ROW1、ROW2与ROW3短接，第一端口COL1、COL2与COL3处的电平信号由高电平信号变为低电平信号。因此，开关元件D1、D2与D3在低电平信号和地电平的作用下截止。此时，中断端口EINT通过电阻连接地电平，接收到地电平，产生中断。由于中断端口EINT产生了中断，基带芯片A判断按键KEY1、KEY2与KEY3同时按下，进而触发手机预订功能。
在上述内容中仅介绍多个按键同时按下时的按键检测方式，本发明的手机的按键单个按下的检测可由传统的按键检测系统或方法来实现，在此不再赘述。本发明的手机并非限制于仅可实现三个按键同时按下的检测，按键数量可为两个或其他多个。例如，通过取消开关元件D3，即可实现按键KEY1、KEY2同时按下时的检测。
本发明的有益效果是：区别于现有技术的情况，本发明的手机及其按键检测装置能够支持手机键盘中的两个或多个按键同时按下时的检测。
以上所述仅为本发明的实施例，并非因此限制本发明的专利范围，凡是利用本发明说明书及附图内容所作的等效结构或等效流程变换，或直接或间接运用在其他相关的技术领域，均同理包括在本发明的专利保护范围内。

Claims (13)

  1. 一种手机，其特征在于，所述手机包括：
    至少两个按键；
    基带芯片，包括至少两个第一端口、至少两个第二端口以及一中断端口，其中每一所述第一端口分别输出第一电平信号，并对应连接一所述按键的一端，每一所述第二端口分别输出第二电平信号，并对应连接一所述按键的另一端；
    电阻，所述电阻的一端连接所述中断端口，另一端连接参考电平，所述中断端口在接收到所述参考电平时产生中断；
    至少两个二极管，每一所述二极管的正极连接于一所述第一端口与对应的所述按键之间，负极连接于所述中断端口与所述电阻之间，其中所述二极管在所述第一电平信号和所述参考电平的作用下导通，并在所述第二电平信号和所述参考电平的作用下截止。
  2. 根据权利要求1所述的手机，其特征在于，所述第一电平信号为高电平信号，所述第二电平信号为低电平信号，所述参考电平为地电平。
  3. 根据权利要求2所述的手机，其特征在于，所述第一端口为所述基带芯片的列扫描端口，所述第二端口为所述基带芯片的行扫描端口。
  4. 一种手机，其特征在于，所述手机包括：
    至少两个按键；
    基带芯片，包括至少两个第一端口、至少两个第二端口以及一中断端口，其中每一所述第一端口分别输出第一电平信号，并对应连接一所述按键的一端，每一所述第二端口分别输出第二电平信号，并对应连接一所述按键的另一端；
    电阻，所述电阻的一端连接所述中断端口，另一端连接参考电平；
    至少两个开关元件，每一所述开关元件的一端连接于一所述第一端口与对应的所述按键之间，另一端连接于所述中断端口与所述电阻之间，其中所述开关元件在所述第一电平信号和所述参考电平的作用下导通，并在所述第二电平信号和所述参考电平的作用下截止。
  5. 根据权利要求4所述的手机，其特征在于，所述第一电平信号为高电平信号，所述第二电平信号为低电平信号，所述参考电平为地电平。
  6. 根据权利要求5所述的手机，其特征在于，所述开关元件为二极管，所述二极管的正极连接于所述第一端口与对应的所述按键之间，负极连接于所述中断端口与所述电阻之间。
  7. 根据权利要求6所述的手机，其特征在于，所述第一端口为所述基带芯片的列扫描端口，所述第二端口为所述基带芯片的行扫描端口。
  8. 根据权利要求4所述的手机，其特征在于，所述中断端口在接收到所述参考电平时产生中断。
  9. 一种手机的按键检测装置，所述手机包括至少两个按键，其特征在于，所述按键检测装置包括：
    基带芯片，包括至少两个第一端口、至少两个第二端口以及一中断端口，其中每一所述第一端口分别输出第一电平信号，并对应连接一所述按键的一端，每一所述第二端口分别输出第二电平信号，并对应连接一所述按键的另一端；
    电阻，所述电阻的一端连接所述中断端口，另一端连接参考电平；
    至少两个开关元件，每一所述开关元件的一端连接于一所述第一端口与对应的所述按键之间，另一端连接于所述中断端口与所述电阻之间，其中所述开关元件在所述第一电平信号和所述参考电平的作用下导通，并在所述第二电平信号和所述参考电平的作用下截止。
  10. 根据权利要求9所述的按键检测装置，其特征在于，所述第一电平信号为高电平信号，所述第二电平信号为低电平信号，所述参考电平为地电平。
  11. 根据权利要求10所述的按键检测装置，其特征在于，所述开关元件为二极管，所述二极管的正极连接于所述第一端口与对应的所述按键之间，负极连接于所述中断端口与所述电阻之间。
  12. 根据权利要求11所述的按键检测装置，其特征在于，所述第一端口为所述基带芯片的列扫描端口，所述第二端口为所述基带芯片的行扫描端口。
  13. 根据权利要求9所述的按键检测装置，其特征在于，所述中断端口在接收到所述参考电平时产生中断。
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