CN2514413Y

CN2514413Y - Multimedia keyboard

Info

Publication number: CN2514413Y
Application number: CN 01279199
Authority: CN
Inventors: 陈束学
Original assignee: JINQIAO ELECTRONIC INDUSTRY Co Ltd
Current assignee: JINQIAO ELECTRONIC INDUSTRY Co Ltd
Priority date: 2001-12-25
Filing date: 2001-12-25
Publication date: 2002-10-02
Anticipated expiration: 2011-12-25

Abstract

A multimedia keyboard with a function key comprises a keypress with general size, at least a function key provided with at least two keypress functions, a microprocessor arranged inside the keyboard, a scan matrix circuit respectively electric connected with the microprocessor and the keypress, at least a switching indicator light of the function key electric connected with the microprocessor and provided with indication function of at least two keypress functions. The utility model can greatly increase keyboard functions without altering moulds; furthermore, misoperation caused by touching mistakenly can be avoided; above all, the volume between the output and input ports of the microprocessor and the keyboard can be saved. The utility model can make the keyboard more convenient in multimedia functional operation.

Description

MultiMedia Keyboard

Technical field

The utility model relates to a kind of MultiMedia Keyboard, refers to especially a kind ofly be applied in the multimedia messages device keyboard of changeable difference in functionality key.

Background technology

After nineteen ninety-five is released window 95 (Windows95) application software, owing to possess being easy to learn and use and multimedia plurality of advantages of compatibility, very fast Windows becomes the operating system of a main flow, but its also have can't the easy operation function one side, for example, when operating its application program of adding, must enter procedure set looking for one by one, just can go to carry out it after finding; Because the inconvenience on the software program operation, industry is satisfied the notion that proposes to have MultiMedia Keyboard.

What be suggested in 1998 is the key scan sign indicating number of power management triple bond; Defined multimedia standard key sign indicating number again in 1999, the scan code of reserving many reservations simultaneously again allows the user remove defined function, and allows the user to go to change the functional definition of button in Windows.The utility model is the key scan sign indicating number that utilizes Microsoft to announce a but spendable keyboard scancode undefined with it, the special application program of arranging in pairs or groups or with its defined function, and reach the effect of MultiMedia Keyboard.

See also shown in Figure 1, generally on QWERTY keyboard (K/B), expand a plurality of function keys (Hot Key) extraly, as multimedia key (Volume Up, Volume Dn, Mute, WWW, Record, Rewind, the Close of controlling ... Deng, about about 17), and the sign indicating number decided at the higher level but not officially announced (Scan Code) that makes this function key can cooperate the execution of window system (Win 95) application program, make the operator can directly on keyboard, control its function key, and learn on the screen by display; But it if set up the extended function key again, easily makes the volume of keyboard (K/B) become big, and significantly increases the cost (an about 2-3 dollar of function key) of installing function key outside the button that QWERTY keyboard (K/B) is used.

See also shown in Figure 2, the someone proposes to increase the operating key of numeric keypad, a may command the right above the keyboard digital key again, the keyboard mould must be changed greatly simultaneously, on keyboard, additionally set up a light emitting diode again, cooperate numerical key and operating key to come the conversion keys sign indicating number then, transmit different key set codes to reach multimedia function; But this function can only increase by 17 functions, must revise mould simultaneously, and the entire die cost approximately is 100,000 dollars, has also increased cost virtually.

Summary of the invention

In order to overcome the deficiencies in the prior art, fundamental purpose of the present utility model is to provide a kind of MultiMedia Keyboard, becomes the keyboard of singly-bound control multimedia equipment or opening program but it can not need die sinking again or modification keyboard case to get final product handoff functionality.

A purpose more of the present utility model is to provide a kind of I/O port and keyboard volume of saving microprocessor.

For reaching above-mentioned purpose, the utility model is achieved in that a kind of MultiMedia Keyboard, it is the keyboard that is provided with function key, comprise: general requirements button, at least one function key and at least one function key are switched pilot lamp, have at least a function key to be provided with at least two kinds of keypress functions in this function key, it also is provided with a microprocessor and one scan matrix circuit, and wherein, this microprocessor is located in this keyboard; This scanning matrix circuit is electrically connected with this microprocessor and this button respectively; This function key is switched pilot lamp and is electrically connected with this microprocessor.

In other words, a kind of MultiMedia Keyboard of the utility model, it comprises keyboard casing, general requirements button, at least one function key, a keyboard microprocessor, one scan matrix and one (containing) above function key pilot lamp;

This scan matrix is electrically connected with a plurality of and QWERTY keyboard function key and general requirements button on the same group, and function key is in order to some functions commonly used of control window multimedia equipment;

The multimedia function that definition is hidden in the function in the primary standard keyboard scan matrix and additionally can supplies to switch in this microprocessor and this scan matrix, it is a plurality of or single to be that function key can be, it mainly is to be defined in scan matrix outside the standard feature, and convertible second rank function or the 3rd rank function are used in addition;

This microprocessor definition is when the function key anergy (Disable), during again by the button of pressing element second order function because the flag recording status in the microprocessor is 0, therefore, the key set code that judgement will be passed to computing machine is the standard scan sign indicating number, (Enable) is the second order function, and status indicator lamp (M1 LED) can be lighted by this flag record 1 of microprocessor when the function key activation, remind the user to enter the second order functional status at present, for keyboard can being become real MultiMedia Keyboard.

With computer interconnection in, computing machine and keyboard are done two-way communication, when computing machine is issued orders to keyboard, this moment, keyboard just must response be given computing machine.When computing machine is not issued orders to keyboard, microprocessor has detected button and has been pressed on time from scan matrix, microprocessor just judges whether this button is function key, if just with the transition of flag recording status, just transfer anergy to from activation, or transfer activation to from anergy, and and M1 LED is the state that is going out when anergy, just to light to allow the user know be the second rank function that enters button to M1 LED at present when mark record state is activation; Microprocessor continue scanning ought detect again button pressed by, it judges whether again to be function key, if not then sit in the right seat, passes to the suitable keyboard scancode of keyboard, goes round and begins again.

Microprocessor has detected from scan matrix when pressing button, and microprocessor just judges whether this button is function key, if just with the transition of flag recording status, the scan matrix that this moment, microprocessor cut out second rank returns the standard scan matrix functions.When scan matrix not when scan matrix is set at standard feature, the pilot lamp of sharing with NUM LOCK or SCROLL LOCK or CAPS LOCK (SCROLL LOCK and M1 are the light emitting diode of common anode in the present embodiment) is shinny demonstration.

The button that will have the standard and the second rank function according to circuit diagram and scan matrix, stamp in position and represent literal or symbol, this pilot lamp includes a pair of light emitting diode of anode altogether, and the status indicator lamp (M1) that is respectively the SCROLL LOCK and the second rank scan matrix is shared.Scroll Lock is in the deixis of QWERTY keyboard, when the user is during in the second rank function with keyboard to set up, flag recording status in the microprocessor is 1, status indicator lamp M1 lights, this moment, keyboard entered the MultiMedia Keyboard function, and the keypad code of being sent when pressing the button by assigned address since then is the keyboard scancode on second rank.When the user is during in the QWERTY keyboard function with keyboard to set up, the flag recording status in the microprocessor is 0 o'clock, just is returned to the standard scan matrix again, and status indicator lamp this moment (M1) can extinguish.

The utility model also can increase the scan matrix with second order newly single order to reach the scan matrix of three-layered again, that is to be provided with a M2 pilot lamp and CAP be a pair of diode of anode altogether, to increase greater functionality, if the user needs defined function voluntarily, then the envoy can be on demand design function and its suitable software of arranging in pairs or groups voluntarily so that the utility model MultiMedia Keyboard performs to infinite function.

The utility model has the advantages that: the utility model can roll up keypad function, it needn't revise mould just can increase function key, and can avoid because of false touch produces misoperation, the most important thing is to save the I/O mouth and the keyboard volume of microprocessor.The utility model also can make keyboard convenient more in the operation of multimedia function.

Description of drawings

Below in conjunction with drawings and Examples the utility model is elaborated:

Fig. 1 is the existing keyboard planimetric map that is provided with a plurality of multimedia buttons of extra expansion;

Fig. 2 is the existing planimetric map that is provided with the multimedia button at the keyboard digital key that is provided with;

Fig. 3 is general QWERTY keyboard figure;

Fig. 4 is the start process flow diagram that produces scan code for keyboard of the present utility model;

Fig. 5 is the scan matrix layout for keyboard button function contrast of the present utility model;

Fig. 6 is keyboard pilot lamp of the present utility model and microprocessor circuit figure;

Fig. 7 implements illustration for one of keyboard of the present utility model;

Fig. 8 is another enforcement illustration for the utility model MultiMedia Keyboard.

Symbol description among the figure:

1 medium keyboard, 10 keyboard casings

20 general requirements buttons, 22 function keys

30 keyboard microprocessors, 32 scan matrixs

40 function keys are switched pilot lamp

Embodiment

See also Fig. 4～8, a kind of MultiMedia Keyboard 1, it comprises keyboard casing 10, general requirements button 20, at least one function key 22, a keyboard microprocessor 30, one scan matrix 32 and one (containing) above function key pilot lamp 40.

Microprocessor 30 is electrically connected with pilot lamp 40 and this scan matrix 32 respectively.This scan matrix 32 has 8 * 16 8 * 17 8 * 18 ... or 8 * 16 9 * 16 10 * 16 ... Deng different size, look collocation different keyboard 1 and different.

This scan matrix 32 is electrically connected with a plurality of and QWERTY keyboard function key 22 and general requirements button 20 on the same group, and function key 22 is in order to some functions commonly used of control window multimedia equipment.

The multimedia function that definition is hidden in the function in the primary standard keyboard scan matrix and additionally can supplies to switch in this microprocessor 30 and this scan matrix 32, it is a plurality of or single to be that function key 22 can be, it mainly is to be defined in outside the standard feature in scan matrix 32, and convertible second rank function or the 3rd rank function are used in addition.

These microprocessor 30 definition are when function key 22 anergies (Disable), during again by the button of pressing element second order function because the flag recording status in the microprocessor 30 are 0, therefore, the key set code that judgement will be passed to computing machine is the standard scan sign indicating number, (Enable) writes down state just now by this flag of microprocessor 30 when function key 22 activations, judge that the key set code that will pass to computing machine is the second order function, and status indicator lamp 40 (M1 LED) can be lighted, remind the user to enter the second order functional status, and keyboard can be able to be become real MultiMedia Keyboard 1.

See also Fig. 4, with computer interconnection in, computing machine and keyboard are done two-way communication, when computing machine is issued orders to keyboard, this moment, keyboard just must response be given computing machine.When computing machine is not issued orders to keyboard, microprocessor 30 has detected button and has been pressed on time from scan matrix 32, microprocessor 30 just judges whether this button is function key 22, if just with the transition of flag recording status, just transfer anergy to from activation, or transfer activation to from anergy, and and M1 LED is the state that is going out when anergy, just to light to allow the user know be the second rank function that enters button to M1 LED at present when mark record state is activation; Microprocessor 30 continue scanning ought detect again button pressed by, it judges whether again to be function key 22, if not then sit in the right seat, passes to the suitable keyboard scancode of keyboard, goes round and begins again.

Microprocessor 30 has detected from scan matrix presses when pressing button, microprocessor 30 just judges whether this button is function key 22, if just with the transition of flag recording status, the scan matrix that this moment, microprocessor 30 cut out second rank returns the standard scan matrix functions.When scan matrix not when scan matrix 32 is set at standard feature, the pilot lamp of sharing with NUM LOCK or SCROLL LOCK or CAPS LOCK 40 (SCROLL LOCK and M1 are the light emitting diode of common anode in the present embodiment) is shinny demonstration.

See also Fig. 7, the button that will have the standard and the second rank function according to circuit diagram and scan matrix, stamp in position and represent literal or symbol, this pilot lamp 40 includes a pair of light emitting diode of anode altogether, and the status indicator lamp (M1) that is respectively the SCROLL LOCK and the second rank scan matrix is shared.Scroll Lock is in the deixis of QWERTY keyboard, when the user is during in the second rank function with keyboard to set up, flag recording status in the microprocessor 30 is 1, status indicator lamp M1 lights, this moment, keyboard entered MultiMedia Keyboard 1 function, and the keypad code of being sent when pressing the button by assigned address since then is the keyboard scancode on second rank.When the user is during in the QWERTY keyboard function with keyboard to set up, the flag recording status in the microprocessor 30 are 0 o'clock, just are returned to the standard scan matrix again, and status indicator lamp this moment (M1) can extinguish.

See also Fig. 8, its be will have a second order scan matrix at newly-increased single order to reach the scan matrix of three-layered, that is to be provided with a M2 pilot lamp and CAP be a pair of diode of anode altogether, to increase greater functionality, if the user needs defined function voluntarily, then the envoy can be on demand design function and its suitable software of arranging in pairs or groups voluntarily so that the utility model MultiMedia Keyboard performs to infinite function.

Brought forward is described, and the utility model can provide MultiMedia Keyboard, and can promote the convenience that the user operates multimedia function, and creative and novelty is closed the legal requirements in utility model patent fully, and the spy proposes utility application in accordance with the law.

Though the utility model discloses as above with a preferred embodiment, be not in order to limit the scope that the utility model is implemented.Any those skilled in the art, in not breaking away from spirit and scope of the present utility model, when the change that can do some and retouching, promptly all equalizations of doing according to the utility model change and modify, should be this patent scope when with claims and in conjunction with instructions and accompanying drawing the person of being defined be as the criterion.

Claims

1. MultiMedia Keyboard, it is the keyboard that is provided with function key, comprise: general requirements button, at least one function key and at least one function key are switched pilot lamp, have at least a function key to be provided with at least two kinds of keypress functions in this function key, it is characterized in that: it also is provided with a microprocessor and one scan matrix circuit, wherein

This microprocessor is located in this keyboard;

This scanning matrix circuit is electrically connected with this microprocessor and this button respectively;

This function key is switched pilot lamp and is electrically connected with this microprocessor.

2. keyboard according to claim 1 is characterized in that: this pilot lamp includes a pair of diode of anode altogether.

3. keyboard according to claim 1 is characterized in that: this function key is provided with literal or the symbol that representative increases function.