CN202004836U

CN202004836U - Cellphone with extended keypad

Info

Publication number: CN202004836U
Application number: CN2010202730491U
Authority: CN
Inventors: 俞剑
Original assignee: Huaqin Telecom Technology Co Ltd
Current assignee: Huaqin Telecom Technology Co Ltd
Priority date: 2010-07-27
Filing date: 2010-07-27
Publication date: 2011-10-05
Anticipated expiration: 2020-07-27

Abstract

The utility model discloses a cellphone with an extended keypad, which comprises a baseband chip, a qwerty keypad, rows and lines, wherein the baseband chip is arranged in a cellphone body, the qwerty keypad is formed by a plurality of keys, the keys are arranged on the surface of the cellphone body, each of the keys comprises a key body and a key plate, the lines and the rows are distributed between the key bodies and the key plates, each key is arranged at the joint of each line and each row, the lines and the rows are connected with the baseband chip, and the rows are connected with an on/off key of the cellphone. Accordingly, hardware cost is economized, and the qwerty keypad is realized.

Description

The mobile phone that has extended keyboard

Technical field

The utility model relates to the mobile phone input equipment, particularly a kind of mobile phone that has extended keyboard.

Background technology

The QWERTY full keyboard is called for short full keyboard.I.e. 6 letters of first line start be Q, W, E, R, T, Y keyboard layout, just computor-keyboard layout of 101 keys that generally use now.The keyboard that we use now all is called the QWERTY QWERTY keyboard." QWERTY " is the write the two or more syllables of a word together of Master Keyboard letter district 6 letters in the upper left corner.

At first, the keyboard of typewriter is arranged in alphabetical order, if but typing speed is too fast, the combination of some key is easy to occur card key problem, so Valentin Etistov. Larsen. the qwerty keyboard layout of having awarded this (Christopher Latham Sholes) utility model, he is placed in rightabout with the most frequently used several letters, " improving typing speed under the unlikely prerequisite of blocking " as far as possible.Award this and applied for a patent, used first Tianwan businessman of this layout successfully to put on market in 1873 with typewriter in 1868.Why Here it is the arrangement mode of keyboard today.Nowadays, the qwerty keyboard not only has been applied in computer 101 QWERTY keyboard, and portable equipments such as a lot of smart mobile phones, PDA have also all been taked this keyboard.Different with the original intention of qwerty keyboard on the initial typewriter, on the equipment of the such small size of mobile phone, the typing speed of qwerty keyboard is considerably beyond traditional ten key dish.

At present market is very popular abroad for the full keyboard mobile phone, on the market in the mobile phone scheme commonly used, has and does not support full keyboard on multi-platform, and in order to realize the full keyboard function, a lot of companies have selected to increase a keyboard extended chip and realized full keyboard.Increase the keyboard extended chip and no doubt can realize the function of full keyboard, but but increased the hardware cost of mobile phone like this.Increased the goods of furniture for display rather than for use space of mobile phone.Also increased simultaneously the risk of material.

In view of this, those skilled in the art provide a kind of mobile phone that has extended keyboard at the problems referred to above.

The utility model content

The utility model provides a kind of mobile phone that has extended keyboard, has overcome the difficulty of prior art, to reach the saving hardware cost, can realize the purpose of full keyboard again.

The utility model adopts following technical scheme:

The utility model provides a kind of mobile phone that has extended keyboard, comprises the baseband chip of being located in the mobile phone body, full keyboard, line and the alignment that plurality of keys is formed; Described button is arranged on described mobile phone body surface, and it comprises key body and keypad, lays described line and alignment between described key body and the described keypad, and each described button all is arranged on the intersection point of described line and alignment; Described line and alignment connect described baseband chip, and described alignment connects the handset switch switch.

Preferably, described alignment draws for input and on having, and the initial condition row are input as the col alignment of high level, and described line is the low level row line of acquiescence.

Preferably, described button is that matrix form is arranged.

Preferably, described baseband chip is one to have the chip of matrix dynamic scan keyboard circuit.

Preferably, every described alignment and five lines intersect.

Preferably, also comprise a power management module, connect a described baseband chip and a battery of mobile phone respectively.

Preferably, also comprise a radio-frequency module, connect described baseband chip.

Preferably, also comprise a SIM card, connect described baseband chip.

Preferably, also comprise a touch-screen chip for driving, connect a described baseband chip and a touch panel respectively.

Preferably, also comprise a Camera module, connect described baseband chip.

Owing to adopted above-mentioned technology, compared with prior art, the mobile phone that has extended keyboard of the present utility model is saved hardware cost, can realize full keyboard again.

Further specify the utility model below in conjunction with drawings and Examples.

Description of drawings

Fig. 1 is the link block schematic diagram that has the mobile phone of extended keyboard of the present utility model.

Fig. 2 is the line among the embodiment 1 and the connection diagram of alignment.

Fig. 3 is the connection diagram of the alignment among the embodiment 2.

Embodiment

Introduce two kinds of specific embodiments of the present utility model below by Fig. 1 to 3.

Embodiment 1

As illustrated in fig. 1 and 2, be example with the MTK platform, each platform has some lines (KROW), some alignments (KCOL), the last multiplexing COL4 of switch switch (can be any COL) can expand 6 buttons with ROW0-ROW5.

The mobile phone that has extended keyboard of the present utility model comprises the baseband chip of being located in the mobile phone body, full keyboard, line and the alignment that plurality of keys is formed; Described button is arranged on described mobile phone body surface, and it comprises key body and keypad, lays described line and alignment between described key body and the described keypad, and each described button all is arranged on the intersection point of described line and alignment; Described line and alignment connect described baseband chip, and described alignment connects the handset switch switch.Described alignment draws for input and on having, and the initial condition row are input as the col alignment of high level, and described line is the low level row line of acquiescence.Described button is that matrix form is arranged.Described baseband chip is one to have the chip of matrix dynamic scan keyboard circuit.Every described alignment and five lines intersect.

The mobile phone that has extended keyboard of the present utility model can also comprise a power management module, a radio-frequency module, a SIM card, a touch-screen chip for driving and a Camera module.Described power management module connects a described baseband chip and a battery of mobile phone respectively.Described radio-frequency module connects described baseband chip.Described SIM card connects described baseband chip.Described touch-screen chip for driving connects a described baseband chip and a touch panel respectively.Described Camera module connects described baseband chip.

Cell phone platform scheme button detects principle: the col alignment draws for input and on having, and the initial condition row are input as high level, and row is that line is defaulted as low level.Have key to press, col and row connect then step-down, and the last generation of COL interrupt signal is had no progeny during BB detects, and has been judged as button and has pressed.Remember: because col is not that each pin works alone, but process and triggering interruption are behind the door pressed so BB can only detect button, and can not be known specifically which key is pressed.

Rely on the keyboard software scanning imaging system to judge which button is pressed, concrete steps are as follows: detect row earlier, because acquiescence col is a high level, row is a low level, so when button was pressed, corresponding col just can detect low level, then being judged as this col has button to press; And then sending low level by row, other send height, when taking turns to when pressing key place row, detect col input step-down, have so just determined row, have therefore also just known it is that button is pressed.

In actual the use, the keyboard circuit in the mobile phone is made up of contact and contact.The contact is made by the copper sheet on the mobile phone board usually, and contact is exactly usually seen button.Distributing on the keypad crisscross line (Row) and alignment (COL), the corresponding key in each crosspoint.Each button point has two contacts, and one group of (two) contact of button point does not contact with contact at ordinary times, and under the normal condition, when not pressing button, one is low electronics, and another is a high level.When pushing button, contact contacts with two contacts simultaneously, and two circuits that the contact connected are connected.Keyboard circuit in the mobile phone generally is the matrix dynamic scan mode, and wherein, line (ROW) is that high electricity is done by electric resistance partial pressure, and alignment (COL) is scanned one by one by CPU, and low level is effective.When some keys are pressed, the level of the high level line on the corresponding crosspoint is dragged down, and CPU discerns this key according to detected level, and promptly CPU detects " keyboard table " the pairing button in the software document, carry out corresponding button program, and instigate LCD to do corresponding the demonstration.So in conjunction with present general cell phone platform scheme, the multiplexing COL line of the line of starting shooting arbitrarily can be expanded button with the ROW line.

Embodiment 2

As shown in Figure 2, also can on the basis of embodiment 1, be out of shape, will can expand 6 buttons between each root COL line and the ground.Software should be noted that, col detects the same with common detection, the row trace routine need be done simple change, since the expansion button be by row and link together, when pressing this expansion button, system can detect and change all buttons of col and all be pressed, and according to these characteristics, detects this expansion button.In conjunction with present general cell phone platform scheme, any COL line on the baseband chip can be expanded a button by mode over the ground.

In summary, owing to adopted above-mentioned technology, the mobile phone that has extended keyboard of the present utility model is saved hardware cost, can realize full keyboard again.

Above-described embodiment only is used to illustrate technological thought of the present utility model and characteristics, its purpose is to make those skilled in the art can understand content of the present utility model and implements according to this, can not only limit claim of the present utility model with present embodiment, be all equal variation or modifications of doing according to the spirit that the utility model disclosed, still drop in the claim of the present utility model.

Claims

1. a mobile phone that has extended keyboard is characterized in that: comprise the baseband chip of being located in the mobile phone body, full keyboard, line and the alignment that plurality of keys is formed;

Described button is arranged on described mobile phone body surface, and it comprises key body and keypad, lays described line and alignment between described key body and the described keypad, and each described button all is arranged on the intersection point of described line and alignment;

Described line and alignment connect described baseband chip, and described alignment connects the handset switch switch.

2. the mobile phone that has extended keyboard as claimed in claim 1 is characterized in that: described alignment draws for input and on having, and the initial condition row are input as the col alignment of high level, and described line is the low level row line of acquiescence.

3. the mobile phone that has extended keyboard as claimed in claim 2 is characterized in that: described button is that matrix form is arranged.

4. the mobile phone that has extended keyboard as claimed in claim 3 is characterized in that: described baseband chip is one to have the chip of matrix dynamic scan keyboard circuit.

5. the mobile phone that has extended keyboard as claimed in claim 4 is characterized in that: every described alignment and five lines intersect.

6. as the described mobile phone that has extended keyboard any in the claim 1 to 5, it is characterized in that: also comprise a power management module, connect a described baseband chip and a battery of mobile phone respectively.

7. as the described mobile phone that has extended keyboard any in the claim 1 to 5, it is characterized in that: also comprise a radio-frequency module, connect described baseband chip.

8. as the described mobile phone that has extended keyboard any in the claim 1 to 5, it is characterized in that: also comprise a SIM card, connect described baseband chip.

9. as the described mobile phone that has extended keyboard any in the claim 1 to 5, it is characterized in that: also comprise a touch-screen chip for driving, connect a described baseband chip and a touch panel respectively.

10. as the described mobile phone that has extended keyboard any in the claim 1 to 5, it is characterized in that: also comprise a Camera module, connect described baseband chip.