CN201251769Y

CN201251769Y - Device capable of locking keystroke

Info

Publication number: CN201251769Y
Application number: CN 200820029923
Authority: CN
Inventors: 陈淮琰; 严晓龙; 赵伟锋
Original assignee: Inventec Besta Xian Co Ltd
Current assignee: Inventec Besta Xian Co Ltd
Priority date: 2008-08-12
Filing date: 2008-08-12
Publication date: 2009-06-03
Anticipated expiration: 2018-08-12

Abstract

The utility model relates to a device capable of locking keystroke. The device comprises a keystroke, a signal controlling unit and a signal processing unit, the keystroke is connected with the processing unit by the signal controlling unit. The utility model provides a device capable of locking keystroke, thereby reducing the situation of error inputting caused by the error contact of the keystroke.

Description

The device of lockable button

Technical field

The utility model relates to a kind of device of lockable button.

Background technology

At present, the develop rapidly of electronic information industry, the high convenience that hand-held electronic products provided, make hand-held electronic products, for example: e-dictionary, PDA (Personal Digital Assistant) etc. more and more be subjected to many consumers' favor, and people also are more and more high for the requirement of the function of hand-held electronic products, whether following hand-held electronic products is easy to use, become the criticism pointer of high-tech product technology.

Operation push-button, particularly e-dictionary, PDA (Personal Digital Assistant) etc. are substantially all arranged in the hand-held electronic products on the market, and its number of keys is various, or inside and outside screen all is provided with button, and the situation that causes the consumer often to have input error takes place.

The utility model content

The purpose of this utility model is to provide a kind of device of lockable button, thereby reduces the situation that causes input error because of the button false touch.

Technical solution of the present utility model is: the utility model is a kind of device of lockable button, and its special character is: this device comprises button, signal control module and processing unit, and described button is connected with processing unit by the signal control module.

Said apparatus also comprises the signal line that is used to realize communication between button, signal control module and the processing unit.

Above-mentioned button is divided into a plurality of groups, and wherein the key arrangement of identical group is on same signal line.

Said apparatus also includes manual control module, and described manual control module is connected with signal line.

Above-mentioned processing unit is central processing unit or single-chip.

Above-mentioned signal control module is combination or the buffer in combination of passage control IC (integrated circuit) or passage control IC (integrated circuit).

Above-mentioned manual control module is the mechanical switch combination.

Above-mentioned mechanical switch is button, contactor or relay.

The utility model is owing to the control that can realize by processing unit and signal control module button, it can normally be imported under the situation of signal conducting, even and also can't give input information in the device with its coupling guaranteeing to touch button under the situation that signal disconnects, thereby effectively low having avoided because miss the input of touching button and leading to errors, for people provide a great convenience, made things convenient for people's life in using the electronic equipment process.

Description of drawings:

Fig. 1 is a structural representation of the present utility model;

Fig. 2 closes synoptic diagram for part signal line of the present utility model;

Fig. 3 closes synoptic diagram for whole signal line of the present utility model.

Embodiment:

Referring to Fig. 1, the utility model is applicable to hand-held electronic equipment, and this hand-held electronic equipment can be mobile phone, digital individual action assistant (PDA) and Macintosh (iPod) etc.

The utility model comprises a plurality of buttons 11, signal control module 12 and processing unit 13; Described button 11 is connected with processing unit 13 by signal control module 12.

Button 11 is divided into a plurality of groups, and wherein the key arrangement of identical group is on same signal line 111; Signal control module 12 is used for opening or closes signal line 111; Processing unit 13 is that transmission selects signal 131 to open or close signal line 111 with controlling signal control module 12.

Wherein processing unit 13 can be a central processing unit (CPU) or a single-chip etc.

Signal control module 12 can adopt any of following three kinds of structures:

1, uses special modality control IC (integrated circuit).For example eight ternary buffered gate groups (OCTAL3-STATE BUFFER represents model 74LS240/74LS244), eight passage Port Multipliers (8-CHANALOGMUX represents model 74HC4051) etc.;

2, use the combination (particular type and represent model) of a plurality of special modalities control IC (integrated circuit) with scheme 1.Need a plurality of push button signalling lines of synchro control can use a synchronous IC of multichannel, need the signal wire of different controls then to connect different IC;

3, use a plurality of impact dampers (Buffer) combination.Each root signal wire uses an impact damper to control, for example hypervelocity impact damper (ternary output) (UHS Buffer with 3-STATE Output represents model NC7SZ126).

The utility model also includes manual control module, is used for manually opening or closing signal line 111.Manually control module can according to circumstances use a plurality of mechanical switchs (or button, contactor) combination or multi-way switch box etc.(in particular cases,, then can use a plurality of relay switches to realize if control voltage is higher.)

Referring to Fig. 2, when a consumer uses a MP3 listoning music or listens to the FM channel and desire to carry out other operations, for example: look into dictionary or carry out written record etc., for avoiding mistake, promptly need to pin the control button 21 of MP3/FM by to of the action of the control button 21 of controlling MP3/FM with the generation faulty operation.

Therefore will control the control button 21 of MP3/FM, for example: suspend, play, stop, a last song and next be bent, is to be electrically connected on first signal line 211, the required control button 21 of an other group polling dictionary, for example: 1,2,3 etc., be electrically connected on second signal line 212.First signal line 211 and second signal line 212 are connected with signal control module 12.

So, when the consumer listened MP3/FM and do not need to operate MP3/FM, processing unit 13 transmission one selected signal to give signal control module 12, and signal control module 12 disconnects first signal line 211.So suspend, play, stop, last one bent and next song etc., control button 21 will not have signal and be dealt into processing unit 13, other control button 21 then can normal running.Thereby reached the purpose that prevents the mistake button.

Referring to Fig. 3, when the consumer listens MP3 or FM and need not carry out any operation, for example: the consumer places MP3 and listens MP3/FM in the pocket, may be extruded to and produces the mistake button for preventing to control button 21, just needs to pin whole buttons.Therefore, all push-button signal lines that need be lockable, for example: first signal line 211 or and second signal line 212, but give signal control module 22 by processing unit 13 transmitting control signals, signal control module 22 disconnects all push-button signal lines that need be lockable, like this, will not have signal and be dealt into processing unit 13, prevent the purpose of mistake by control button 21 thereby reached.

Claims

1, a kind of device of lockable button is characterized in that: this device comprises button, signal control module and processing unit, and described button is connected with processing unit by the signal control module.

2, the device of lockable button according to claim 1 is characterized in that: this device also comprises the signal line that is used to realize communication between button, signal control module and the processing unit.

3, the device of lockable button according to claim 2 is characterized in that: described button is divided into a plurality of groups, and wherein the key arrangement of identical group is on same signal line.

4, according to the device of claim 1 or 2 or 3 described lockable buttons, it is characterized in that: described device also includes manual control module, and described manual control module is connected with signal line.

5, the device of lockable button according to claim 1 is characterized in that: described processing unit is central processing unit or single-chip.

6, the device of lockable button according to claim 1 is characterized in that: described signal control module is combination or the buffer in combination of passage control IC or passage control IC.

7, the device of lockable button according to claim 4 is characterized in that: described manual control module is the mechanical switch combination.

8, the device of lockable button according to claim 7 is characterized in that: described mechanical switch is button, contactor or relay.