CN102761670A

CN102761670A - Method for preventing misoperation of capacitive touch screen during phone call

Info

Publication number: CN102761670A
Application number: CN2012102611725A
Authority: CN
Inventors: 应丁巍
Original assignee: Jiangxi Lianchuang Electronic Co Ltd
Current assignee: Jiangxi Lianchuang Electronic Co Ltd
Priority date: 2012-07-26
Filing date: 2012-07-26
Publication date: 2012-10-31

Abstract

The invention discloses a method for preventing misoperation of a capacitive touch screen during phone call. The working process is as follows: (1) detecting signal data by the touch screen; (2) processing the signal data, and calculating data required by the mobile phone; (3) determining whether the signal data contains large-area faulty-contact data or not; (4) determining whether faulty-contact prevention command is sent out or not; (5) sending a command to a master control of the mobile phone to open or close the faulty-contact prevention function; and (6), sending corresponding data of coordinates, gestures and the like to the master control of the mobile phone according to the communication protocol. According to the method provided by the invention, the function which only can be achieved by a proximity sensor and an infrared emission pipe in the prior art can be achieved by redesigning the working process of the capacitive touch screen without the need of hardware equipment, so that the space of the mobile phone is released, the design difficulty in appearance and structure of the mobile phone is reduced, and the manufacturing cost of the mobile phone is lowered.

Description

A kind of method that prevents misoperation in the capacitance touch screen mobile phone communication

Technical field

The present invention relates to moving communicating field, particularly a kind of method that prevents misoperation in the capacitance touch screen mobile phone communication.

Background technology

At present, the capacitance touch screen mobile phone becomes the main flow mobile phone, and the user is when making a phone call, and screen contacts with face, causes wrong operation easily.The solution that present capacitive touch screen is general is; On mobile phone, install one and be used for preventing that near inductive pick-up screen contacts the misoperation that causes in the user's communication process with face; And proximity transducer also need be used with an infraluminescence pipe, has increased the manufacturing cost of mobile phone, and the size of transducer and infraluminescence pipe and peripheral devices need be placed near the receiver; Cell phone appearance and structure Design difficulty have been increased; What adopt in the prior art is optical transmission, need on mobile phone, punch, and has increased manufacturing cost.When mobile phone is in the communication process; Detect the distance of proximity transducer and people's face, when apart from less than certain value the time, it is backlight to close LCD (liquid crystal display screen); Do not handle data from capacitance touch screen; When people's face and mobile phone during again at a distance of certain distance, it is backlight to open LCD again, handles the data from capacitance touch screen.Existing implementation method generally is through increasing proximity transducer and infrared transmitting tube, increased the mobile phone space like this, increased cell phone appearance and structure Design difficulty, having increased the manufacturing cost of mobile phone.

Summary of the invention

To the problems referred to above; The present invention provides a kind of and prevents that the method for misoperation in the capacitance touch screen mobile phone communication from being the Firmware (firmware for capacitive touch screen; The program code of burning in the capacitive touch screen control chip) more one of design cover workflow has again detected and has judged some data, and revises the communications protocol with main frame a little; Just can realize identical functions; Need not increases other hardware device, has practiced thrift the manufacturing cost of mobile phone, has reduced the outward appearance and the structure Design difficulty of mobile phone.

Technical scheme of the present invention is, a kind of method that prevents misoperation in the capacitive touch screen mobile phone communication, and its workflow is following: 1) touch-screen detects signal data;

2) processing signals data calculate the data that mobile phone needs;

3) judge whether the data of large tracts of land false touch;

4) judge whether to send out anti-false touch order;

5) send a command to the mobile phone master control and open anti-error touch function, perhaps send a command to the mobile phone master control and close anti-error touch function;

6), send data such as corresponding coordinate and gesture to the mobile phone master control according to communications protocol.

The data of said large tracts of land false touch are meant the data that continuous signal is arranged more than 1/4 of transducer sum.

Advantage of the present invention is need not use hardware device; Only pass through the workflow of design capacitance formula touch-screen again, realize original function that realizes through proximity transducer and infrared transmitting tube, release mobile phone space; Reduce cell phone appearance and structure Design difficulty, reduce the manufacturing cost of mobile phone.

Description of drawings

Fig. 1 is a workflow diagram of the present invention.

Embodiment

Combine accompanying drawing and embodiment that the present invention is described further at present, referring to Fig. 1, a kind of method that prevents misoperation in the capacitive touch screen mobile phone communication, its workflow is following:

1) touch-screen detects signal data 101;

2) processing signals data calculate the data 102 that mobile phone needs;

3) judge whether the data 103 of large tracts of land false touch;

4) judge whether to send out anti-false touch order 104;

5) sending a command to the mobile phone master control opens anti-error touch function 105 or sends a command to the mobile phone master control and close anti-error touch function 106;

6), send data such as corresponding coordinate and gesture to mobile phone master control 107 according to communications protocol.

Embodiment:A kind of method that prevents misoperation in the capacitive touch screen mobile phone communication, its workflow is following:

1) mobile phone powers on to touch-screen, and touch-screen starts communication module and Sensor (transducer of capacitive touch screen) scan module, after affirmation and mobile phone master control communication are normal, gets into major cycle.

2) in the major cycle, the scanning Sensor that does not stop judges whether touch-screen has detected signal data; If no, then continue scanning Sensor, if having; Touch-screen detects signal data, then calculates some data (such as coordinate, gesture) of cell-phone customer terminal needs according to signal data; And according to data such as the signal strength signal intensity of Sensor, signal distributions situation; Whether be the data of large tracts of land false touch, the data of said large tracts of land false touch are meant the data that continuous signal is arranged more than 1/4 of Sensor sum if judging, the signal data that causes with the finger normal running at ordinary times is generally the data of the continuous signal about 5 to 10.The data of large tracts of land false touch generally are because skins such as people's face or palms, also can be that the false touch that produces of other article is formed.

3) after the data of judging false touch; If also do not send anti-error fingertip order, arrive mobile phone end with regard to sending the order of opening anti-false touch earlier, and then send the data that normal running needs; Open anti-this instruction of false touch if sent, just directly sent the data that normal running needs.After determining the data that do not have false touch, just transmission is closed anti-error fingertip and is made cell-phone customer terminal earlier, and then sends the data that normal running needs.If always judge the data of false touch, just directly send effective operating data.

4) mobile phone is judged the mobile phone current state after receiving the order of anti-error fingertip, if be in talking state, it is backlight to close LCD, receives but does not handle the valid data (coordinate, gesture etc.) that this moment, touch-screen sended over, and removes anti-error fingertip order up to receiving.

Similarly, this processing also can solve some other misoperation, as does not have screen locking just to put mobile phone into misoperation that pocket causes near skin etc.

The present invention passes through the workflow of design capacitance formula touch-screen again; Whether judge screen contacts with people's face or other positions; Notify the mobile phone master control with this information through communications protocol, the mobile phone master control can be made various processing according to current different state.Realized the function that needs proximity transducer and infrared transmitting tube to realize originally having discharged the mobile phone space, reduced cell phone appearance and structure Design difficulty, reduced the manufacturing cost of mobile phone.

Claims

1. method that prevents misoperation in the capacitive touch screen mobile phone communication is characterized in that workflow is following:

1) touch-screen detects signal data;

2) processing signals data calculate the data that mobile phone needs;

3) judge whether the data of large tracts of land false touch;

4) judge whether to send out anti-false touch order;

2. the method that prevents misoperation in the capacitive touch screen mobile phone communication according to claim 1 is characterized in that, the data of said large tracts of land false touch are meant the data that continuous signal is arranged more than 1/4 of transducer sum.