CN101216731A - Portable electronic apparatus and its line traffic control accomplishing method - Google Patents
Portable electronic apparatus and its line traffic control accomplishing method Download PDFInfo
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- CN101216731A CN101216731A CNA2007100632783A CN200710063278A CN101216731A CN 101216731 A CN101216731 A CN 101216731A CN A2007100632783 A CNA2007100632783 A CN A2007100632783A CN 200710063278 A CN200710063278 A CN 200710063278A CN 101216731 A CN101216731 A CN 101216731A
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Abstract
The invention discloses a portable electronic device and a wire-control method. The portable electronic device includes an earphone socket, a CPU and an interruption detecting module. During the wire-control process through a wire-control earphone, the CPU records the time from the press-down to release of the wire-control earphone key-press, compares the time length with the preset threshold to judge and record the type of the key-press corresponding to the time length, and performs corresponding functions according to the recorded type of key-press for one-time operation or the combination of key-press types for many times of operation. With the simple wire-control earphone provided by the invention, various control functions can be performed to the portable electronic device.
Description
Technical field
The present invention relates to the line traffic control technology of portable electric appts, be meant a kind of portable electric appts and line traffic control implementation method thereof especially.
Background technology
Popularizing of portable type electronic product brings great convenience to user's life.The ease for use of product, good man-machine communication interface are to estimate the important indicator of portable product quality.
Prior art generally is by the dedicated serial interface, and such as internal integrate circuit bus (I2C), or multi-thread common key-press scans and realizes the earphone line traffic control.
The application number that the applicant submitted on May 23rd, 2002 is in 02117856.9 the Chinese patent application, disclose a kind of by the line control earphone of dedicated serial interface and the connecting circuit of portable electronic device body, referring to shown in Figure 1, comprise: button S1, S2, S3 and S4 are respectively applied for the control playback, stop, a last song is selected, next song selection.These buttons are connected with the resistance R 1 with different resistances, R2, R3 and R4 respectively, are parallel-connected to the input end of modulus (AD) converter of portable electronic device body then, and this input end also connects a divider resistance R5 simultaneously.When pressing described any one button, be input to AD converter after resistance that is connected with this push button and resistance R 5 dividing potential drops, and convert the central processing unit (CPU) that digital signal sends portable electric appts to through AD converter; This voltage division signal is through the look-at-me of over-voltage comparator generation CPU simultaneously, and control CPU receives the digital signal through the AD converter conversion.CPU produces corresponding function by this digital signal is analyzed.
At present, if realize the complexity of portable electric appts is controlled, all be mode usually by dedicated serial interface and a plurality of control buttons.The shortcoming of these schemes is to need special-purpose hardware interface, special-purpose earphone cord.In addition, by serial line interface realize earphone line traffic control function also need increase microprocessor (MPU) circuit, make power consumption and cost all can improve, and Duo 4 lines (communication interface of I2C, power supply and digitally) at least than common four-part form tramline.Mode by key scan increases a lot of connections especially, causes earphone cord thicker.These two kinds of attractive in appearance and ease for use of method affect, and increase cost.
Summary of the invention
In view of this, fundamental purpose of the present invention is to provide a kind of portable electric appts and line traffic control implementation method thereof, does not need to increase the various line traffic control functions that hardware cost can be realized earphone.
The invention provides a kind of portable electric appts based on above purpose, comprising: earphone socket, interruption detection module and CPU;
Described earphone socket input end is connected with line control earphone, and output terminal is connected to described interruption detection module;
The interruption detection module when the line traffic control earphone keystroke is pressed and unclamps, produces look-at-me and sends to CPU respectively;
CPU writes down the time interval of described twice look-at-me, determines push-button type according to the time interval, carries out corresponding function according to the combination of a push-button type or an above push-button type.
The described earphone socket input end of this portable electric appts connects the line control earphone of individual palpation key.
This portable electric appts is a mobile phone;
Described CPU further judges the current call request of whether receiving when receiving look-at-me, if then answer; Otherwise, continue to judge current whether being in the conversation, if, kill-call then, otherwise, continue timing wait button and unclamp.
Also provide a kind of line traffic control implementation method of portable electric appts based on above-mentioned purpose the present invention, set respectively corresponding function of combination of each a different push-button type or an above push-button type; Set at least one time span threshold value, be used to distinguish different time span scopes, the corresponding push-button type of each time span scope;
And may further comprise the steps:
A. writing down the line traffic control earphone keystroke unclamps the time that is continued from pressing to;
B. relatively, determine and write down this time span corresponding key type this time span and pre-set threshold;
C. judge whether the line traffic control earphone keystroke is pressed once more in the predetermined time interval, if, return steps A, otherwise, step D entered;
D. carry out corresponding function according to the push-button type of record or the combination of an above push-button type.
Comprise further in the described portable electric appts of this method that interrupting detection module is connected with line control earphone, steps A comprises: interrupt detection module generation look-at-me when the line control earphone button is pressed and send to CPU, interrupt detection module generation look-at-me when the line control earphone button unclamps and send to CPU, CPU writes down the time interval of twice interruption.
The described line control earphone that is connected with the interruption detection module of this method is the line control earphone of individual palpation key.
The described portable electric appts of this method is a mobile phone, and described steps A further comprises: when detecting the line control earphone button and pressing, judge the current call request of whether receiving, if then answer; Otherwise, judge current whether being in the conversation, if, kill-call then, otherwise, continue timing and wait for that button unclamps.
From above as can be seen, portable electric appts provided by the invention and line traffic control implementation method thereof compared with prior art, have following advantage:
One, can realize various control function based on existing four-part form earphone, not increase cost portable electric appts.
Two, control is simple, can the individual palpation key operation.
Three, line interface is simple, can accomplish minimum, makes control tramline very attractive in appearance.
Four, energy-conservation, do not need to open display device and just can control.
Description of drawings
Fig. 1 is the syndeton synoptic diagram of existing earphone cord control circuit and portable electronic device body;
Fig. 2 is the earphone cord control circuit of preferred embodiment of the present invention and the syndeton synoptic diagram of portable electronic device body;
Fig. 3 is the earphone line traffic control schematic flow sheet of preferred embodiment of the present invention;
Fig. 4 is the earphone line traffic control schematic flow sheet that has the music playback function mobile phone of preferred embodiment of the present invention.
Embodiment
For achieving the above object, the present invention unclamps the time that is continued and carries out record from pressing to the line control earphone button; By this time span and pre-set threshold are compared, judge this time span corresponding key type and record; Corresponding function is carried out in combination according to the push-button type of the push-button type of single job of record or multi-pass operations.Like this, button of minimum needs just can be realized the control to the various sophisticated functionss of line control earphone.
The earphone cord control circuit of preferred embodiment of the present invention and the connecting circuit of portable electronic device body are referring to shown in Figure 2.Line control earphone end testing circuit is only established a common key-press K, and the process earphone socket is connected to the interruption detection module input end in the main frame testing circuit, and the output terminal that interrupts detection module is connected to the CPU of portable electric appts.Wherein, for mobile phone, button K can be the receiving/hang-up key of common four sections handset earphone lines, and button K also can resistance in series in addition.
When button K was pressed, the voltage or the electric current that interrupt producing when detection module detects the line control earphone button and presses changed, and send look-at-me, give CPU such as interrupt request (IRQ), and CPU picks up counting; When unclamping button K, the voltage or the electric current that interrupt producing when detection module detects the line control earphone button and unclamps change, and send look-at-me once more to CPU.Wherein, the look-at-me of sending for twice can be identical; Also can be different, represent the operation of pressing and unclamping button respectively.CPU record is pressed and is unclamped time interval between the button, by with this time span and pre-set threshold comparison, judges this time span corresponding key type and record; According to the push-button type of the single job of writing down, or its pairing function and execution are judged in the combination of the push-button type of multi-pass operations in the certain hour.
The present invention also can be applicable on the circuit of bluetooth earphone, and structure and principle are similar.
Referring to process flow diagram shown in Figure 3, the preferred embodiment to earphone cord control method of the present invention is elaborated below.
The duration of pressing according to button is set several push-button type in advance, such as: short by, in by, long press etc.The setting-up time length threshold is used to distinguish the different key type, such as: set two threshold values 0.5 second and 2 seconds, if the duration that button is pressed less than 0.5 second for short by, press in 0.5 to 2 second being, pressed for long greater than 2 seconds.And, set the corresponding a kind of function of combination of each push-button type or a plurality of push-button type.
For correct identification user's operational order, the present invention need carry out timing to two kinds of situations: the one, and button is pressed and is unclamped lasting time span, and another is the time interval of twice operation of user.
When the user operates by line control earphone, may further comprise the steps:
With an instantiation earphone line traffic control implementation method of the present invention is described further below.
Suppose portable electric appts for having the mobile phone of Motion Picture Experts Group's audio layer (MP3) playing function, its line control earphone only needs a regular handset to answer the button of hanging up usefulness.
Set two time span threshold values 0.5 second and 2 seconds, its push-button type be defined as follows:
Short pressing: less than 0.5 second;
In press: greater than 0.5 second and less than 2 seconds;
Long pressing: greater than 2 seconds.
The time interval of twice operation was no more than in 8 seconds.
The key combination functional definition is as follows:
Long pressing: opening/closing music player;
In by+short pressing: reduce volume;
In by+long pressing: increase volume;
Short in+short pressing: a last head;
Short by+in press: next;
Short in+long pressing: as to play;
In by+long pressing: suspend.
Concrete line traffic control realization flow, referring to shown in Figure 4:
The current call request of whether receiving is judged in step 402~403, if, then answer this calling, finish; Otherwise enter step 404.
Step 404~405 are judged current whether being in the conversation, if, then hang up current talking, finish; Otherwise enter step 406.
Step 407 by pressing time and threshold ratio, is judged the corresponding key type, and record.
The time of pressing of hypothetical record is 1.5 seconds, by with two threshold values relatively judge in the input of this push-button type by.
Step 408 judges whether the line control earphone button is pressed once more within 8 seconds, if the timing in the time interval stops and zero clearing, returns step 401; Otherwise the timing zero clearing in the time interval enters step 409.
Suppose that button is pressed once more in 8 seconds, and the push-button type of record is pressed for long in step 407.
Step 409 is carried out corresponding function according to push-button type or its combination of record.
This moment the push-button type that write down be combined as in by+long by, by the corresponding relation of inquiry button type combination and function, obtain its pairing function for suspending, then CPU carries out the operation that suspends the current song broadcast.
The above only is preferred embodiment of the present invention, and is in order to restriction the present invention, within the spirit and principles in the present invention not all, any modification of being done, is equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (7)
1. a portable electric appts includes earphone socket and CPU, it is characterized in that, further comprises: interrupt detection module;
Described earphone socket input end is connected with line control earphone, and output terminal is connected to described interruption detection module;
The interruption detection module when the line traffic control earphone keystroke is pressed and unclamps, produces look-at-me and sends to CPU respectively;
CPU writes down the time interval of described twice look-at-me, determines push-button type according to the time interval, carries out corresponding function according to the combination of a push-button type or an above push-button type.
2. portable electric appts according to claim 1 is characterized in that, described earphone socket input end connects the line control earphone of individual palpation key.
3. portable electric appts according to claim 1 is characterized in that, described portable electric appts is a mobile phone;
Described CPU further judges the current call request of whether receiving when receiving look-at-me, if then answer; Otherwise, continue to judge current whether being in the conversation, if, kill-call then, otherwise, continue timing wait button and unclamp.
4. the line traffic control implementation method of a portable electric appts is characterized in that, sets respectively corresponding function of combination of each a different push-button type or an above push-button type; Set at least one time span threshold value, be used to distinguish different time span scopes, the corresponding push-button type of each time span scope;
And may further comprise the steps:
A. writing down the line traffic control earphone keystroke unclamps the time that is continued from pressing to;
B. relatively, determine and write down this time span corresponding key type this time span and pre-set threshold;
C. judge whether the line traffic control earphone keystroke is pressed once more in the predetermined time interval, if, return steps A, otherwise, step D entered;
D. carry out corresponding function according to the push-button type of record or the combination of an above push-button type.
5. method according to claim 4, it is characterized in that, comprise further in the described portable electric appts that interrupting detection module is connected with line control earphone, steps A comprises: interrupt detection module generation look-at-me when the line control earphone button is pressed and send to CPU, interrupt detection module generation look-at-me when the line control earphone button unclamps and send to CPU, CPU writes down the time interval of twice interruption.
6. method according to claim 5 is characterized in that, the described line control earphone that is connected with the interruption detection module is the line control earphone of individual palpation key.
7. method according to claim 4 is characterized in that, described portable electric appts is a mobile phone, and described steps A further comprises: when detecting the line control earphone button and pressing, judge the current call request of whether receiving, if then answer; Otherwise, judge current whether being in the conversation, if, kill-call then, otherwise, continue timing and wait for that button unclamps.
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Application publication date: 20080709 |