MX2011010240A - Miniature keyboard for use with one hand. - Google Patents

Abstract

Disclosed is a keyboard in miniature for use with a single hand as an interface for introducing text in screens of electronic devices; which includes 44 keys in an arrangement of five horizontal rows, these being defined by control keys, simple function keys, special functions and configurable functions, alphanumeric keys, symbol keys, displacement keys, modification keys and Tab, Enter, Fn, Opc and space keys specially arranged for offering a suitable location to the strongest fingers of the hand which are more frequently used, thus avoiding skeletal muscle alterations due to the forced posture of the hand-wrist segment (upon adopting a natural posture) and movement and force of the fingers, also preventing consequent alterations such as the carpal tunnel syndrome, tendinitis and other from occurring upon avoiding repetitive movements and efforts; where the control keys have a DL pivot key, an SDL key and a Fn key for selecting different symbols or characters marked in alphanumeric a nd symbol keys; also has a Shift (left and right) control key for selecting other symbols or characters.

Description

MINIATURE KEYBOARD FOR USE WITH ONE HAND FIELD OF THE INVENTION The present invention is related to electronics in general, in particular with the means and devices used to enter text in various electronic devices. More specifically, it refers to a miniature keyboard for use with one hand as an interface for text input to screens of various electronic devices.

BACKGROUND OF THE INVENTION Due to the miniaturization of electronic devices in the current market, one can observe in particular the incorporation of increasingly smaller keyboards as an interface for the entry of text on the screens of an electronic device for daily and continuous use; This has shown that the excessive use of such keyboards can be a cause of osteomuscular pathology, such as tendonitis, tenosynovitis or carpal tunnel syndrome.

Under these conditions, science and technology have been forced to offer products that take care and elevate the welfare of the users of such electronic devices.

Most keyboards in today's market are not associated with technology as Moore's Law alludes (Moore's Law governs this frantic evolution.) It says: every 18 months the power of computers it duplicates, it is an empirical law, formulated by the co-founder of Intel, Gordon E. Moore on April 19, 1965, whose fulfillment has been verified until today).

At present some keyboards may be suitable for some people, in some positions, but it can not be generalized that a certain design is more suitable under any circumstance.

Everyone knows the QWERTY keyboard or also known as English keyboard, which includes the distribution of the most common keys; It was designed and patented by Christopher Sholes in 1868 and sold to Remington in 1873. Its name comes from the first six letters of its top row of keys and was developed for two purposes: To get people to write faster, distributing the letters in such a way that they can use both hands to write most of the words.

To avoid that the hammers of the letters clashed between them, in the first designs.

In this keyboard, according to the most widespread typing technique, in rest position, four fingers of each hand are placed on the central row of keys. To be able to find this position without having to look at the keyboard, the keys corresponding to the index fingers of each hand (F and J) usually have some distinctive feature to the touch.

The QWERTY keyboard has versions for different languages. There are countries, such as Germany, that exchange the "Y" key and the "Z" key, with what becomes the QWERTZ keyboard. In France and Belgium there are more changes and the first 6 alphabetic keys have the sequence AZERTY. In the Spanish and Latin American provision the letter "Ñ" is included.

However, because of the position of use of said keyboard, comfort in the position of the hand and wrist is left out, and therefore a repetitive strain injury can be acquired. To relieve the syndrome, some recommendations are: avoid using the affected hand excessively, look for a new way to use the hand using a different tool.

It is also known of the existence of the Dvorak keyboard that includes a reduction in distance between the keys and the paths of the fingers. This reduction in the distance traveled by the fingers implies higher typing speeds, and in recent years is believed to reduce repetitive motion injuries, including carpal tunnel syndrome. Although the Dvorak keyboard has not been able to displace the QWERTY, its access is easier in the era of the computer and all operating systems include it and allow the change of keyboards at will. There are also some physical Dvorak keyboards in the ergonomic keyboards market.

This keyboard improves the QWERTY keyboard, for maximum speed and efficiency the most frequent letters should be the easiest to write. The right hand should do more work, because most people are right-handed.

Also known as the Colemak keyboard, the Colemak keyboard layout was developed in 2006, designed to facilitate writing by placing the most frequent letters under the strongest fingers. This is to prevent Repetitive Effort Syndrome, which can be caused by repetitive and lasting movements, such as pressing the most frequent keys in an unfavorable position.

It is also known the Blackberry Storm® keyboard, which was developed by Blackberry®, this keyboard only for portrait mode and made a matrix array of buttons. Keep using the QWERTY key settings without worrying about previous research to improve the keyboard.

Other known keyboards are Colemak keyboards in which the distribution of keys is alternative to the distribution QWERTY and Dvorak, to facilitate writing by placing the letters more frequently on the stronger fingers to prevent repetitive strain injuries. However, it is limited because size continues to avoid miniaturization and two hands must be used, so it does not benefit people with a disability.

Another keyboard is the StarFish keyboard in which the QWERTY keyboard is added with motors to vary the position on the keyboard to prevent repetitive strain injuries. However, size continues to limit miniaturization, both hands must be used and it does not benefit people with a disability; neither does it facilitate writing by placing the letters more frequently on the stronger fingers.

In the state of the art PCT / U patent application S2008 / 014103 by Gregory Herlein and Christopher Yunker, filed on December 30, 2008, was found, which aims to protection of a method and a system to implement text input on a touch screen on a screen in a first orientation. A network page is used to present the display of the touch screen, which allows the selection of text through a virtual keyboard. The selected alphanumeric characters are displayed on the screen in an orientation that matches the first orientation of the screen.

The patent US7,554,529 of Krishna V. Kotipalli, filed on December 15, 2005 and granted on June 30, 2009, was found, which protects methods for using a soft keyboard having one or more soft keys with a symbol presented in one or more of the soft keys. A modifier can be applied to one of the symbols presented in one of the soft keys by selecting the soft key and then providing a directional input. In one embodiment, different directional inputs are associated with different modifiers, so that different symbols are introduced depending on the directional input. In one embodiment, a user can steal the address input with a tap and directional drag of a selector through a touch-sensitive screen. In one embodiment, a plurality of symbols associated with a plurality of modifier keys becomes visible after the soft key is selected so that the user can visually determine which directional input will provide the desired symbol.

The patent MX 270707 B of Richard J. Dombro ski, et al. granted on October 7, 2009, which protects a keyboard comprising a plurality of user interface keys, the plurality of user interface keys is separated by spaces at least on some sides thereof; a carrier portion interconnecting the plurality of user interface keys, and a flexible network interconnecting at least some of the plurality of user interface keys, characterized in that: the plurality of user interface keys is flexibly coupled to the portion carrier, and the plurality of user interface keys and the carrier portion constitute a unitary element, and in that the plurality of user interface keys and the carrier portion are formed of a metal material.

Also located was the patent MX 258606 of Jason T. Griffin, granted on July 8, 2008, which protects a keyboard for a portable electronic device comprising ten keys arranged in four rows in a numeric keypad format DTMF (Dual Tone Multifrecuency - Dual Multifrequency Tone), three of said keys house respectively the numerals 1, 2 and 3 distributed in a first of said rows, three of said keys house respectively the numerals 4, 5 and 6 distributed in a second of said rows, three of said keys house respectively the numerals 7, 8 and 9 distributed in a third of said rows and a tenth key houses a 0 located in a fourth of said rows, in the keys of the first, second and third row also housed alphabetic characters , which, both individually and in connection with additional keys that hold alphabetic characters, are positioned relative to the alphabetic character keys or adjacent keys to form a standard keyboard array (QWERTY) or a Dvorak keyboard array.

The documents described above in one way or another reproduce the configuration of the known and described keypads; many fail to reduce sizes or harmful effects on health.

The present invention seeks to propose the incorporation of the DL Keyboard to portable electronic devices in order to offer the reduction of damage to the health of the users, according to the ergonomic principles constituted in ISO 6385-1981, to allow the user to locate and use the Keys quickly and accurately, without causing discomfort or discomfort; being innovative and different from the usual QWERTY keyboard that we use in most of our electronic products.

OBJECTIVES OF THE INVENTION The main purpose of the present invention is to make available a miniature keyboard for use with a hand that can be integrated into portable electronic devices that avoid musculoskeletal alterations due to the forced positioning of the hand-wrist segment (when achieving a natural posture). and the movement and strength of the fingers and the prevention of consequent alterations such as carpal tunnel syndrome, tendinitis or others, by avoiding repetitive movements and efforts.

Another objective of the invention is to make available said miniature keyboard for use with a hand that can be integrated into new electronic devices, which is also highly ergonomic and allows the user to locate and use the keys quickly and accurately, without generating discomfort or discomfort.

Another objective of the invention is to make available said miniature keyboard for use with a hand that can be integrated into new electronic devices, which also provides the possibility of developing specific applications that offer people with disabilities the possibility of communication or integration. to the world of work, increasing their participation in society and their degree of independence by offering these alternative designs as a solution to the problem of accessibility to computers or other electronic devices.

Still another object of the invention is to make available said miniature keyboard for use with a hand that can be integrated into the new electronic devices, which also use less area for the distribution of the keys and provides greater typing speed for a single hand, not only pursuing the objective previously but also for the use and implementation in the technologies for users in general; besides freeing up space to expand the work area.

Still another objective of the invention is to make available said miniature keyboard for use with a hand that can be integrated into new electronic devices, which also provides freedom to one hand to streamline some processes such as capture.

Still another objective of the invention is to make available said keyboard in miniature for use with a hand that can be integrated into the new electronic devices, which also allows to reduce the measurements of the various electronic devices without forgetting the health and comfort of the users.

Still another object of the invention is to make available said miniature keyboard for use with a hand that can be integrated into the new electronic devices, which also allows the arrangement of the keys that are used more frequently in position such that they are operated with the fingers stronger, and where the least used keys are positioned in a zone such that to access them there must be a combination of keys by operating keys located in areas where they are operated with the strongest fingers.

Still another objective of the invention is to make available said miniature keyboard for use with a hand that can be integrated into new electronic devices, which is also more economical and allows to increase profits.

And all those qualities and objectives that will become apparent when making a general and detailed description of the present invention supported by the illustrated modalities.

BRIEF DESCRIPTION OF THE INVENTION In general, the keyboard of the present invention which has been called "DL Keyboard" consisting of a total of 44 keys in an array of five horizontal rows, defined by control keys consisting of the pivot key DL arranged to the left of the bottom row, the SDL key placed in the upper right margin of the upper row (or the Shift keys (located to the right of the middle row + DL, incorporated in the Right Shift key), a Fn key ( numerical function), which allows to select the symbols or characters marked either in the lower right, in the upper right or in the central part, respectively, of the alphanumeric keys and the symbol keys, in addition to a key of Shift control (Left Shift and Right Shift defined by the arrows of said Shift key) arranged to the right of the middle row that allows to select the symbols or characters marked in the upper left or in the upper right part of the alphanumeric keys and the symbol keys, respectively; and finally the FE control key that gives access to special functions or predictive writing.

The keyboard further comprises five function keys [(F1, F6, F11), (F2, F7 and F12), (F3, F8.F13), (F4, F9, F14), (F5, F10, F15) arranged to the center of the upper row where each key comprises three different functions that can be typed directly to choose the F1 functions .... F5 or keyed F1 .... F5 and then pressing the DL control key to select the F6 functions. .. F10 or typing F1 ... F5 and then pressing the left Shift key to select the functions F 11 ... F 15.

Special functions are used to access the predictive mode options and when they are not being written they can be configured by the user as shortcuts, macros, among others; the keyboard has five special function options that are selected by pressing the left Shift keys plus the SDL key and then the F1 ... F5 functions as required; The keyboard also includes user-selectable configu- rable functions by pressing the Right Shift key plus the desired function F1 ... F5, arranged closer to the fingers for direct access.

The keyboard also includes four movement keys [(PgDn, V); (PgUP,?) In vertical arrangement; (Hom, <); (End, >)] in horizontal arrangement] arranged in the upper left margin of the two upper rows, distributing in a smaller distance to reduce the travel of the index finger.

When pressing the movement keys [(PgDn, V); (PgUP,?); (Hom, <); (End, >)] directly allow the descent, ascent, and left and right lateral displacements, respectively; by pressing directly on these keys [(PgDn, V); (PgUP,?); (Hom, <); (End, >)] and then the DL key allows movement page down, page up and beginning of line and end of line, respectively; by pressing directly on these keys [(PgDn, V); (PgUP,?); (Hom, <); (End, >)] and then the DL key plus the Ctrl key moves one page down, one page up, to the Top of the page or the bottom of the page, respectively The keyboard also includes modifier keys that are the Ctrl and Alt keys located in the lower left margin in the lower row and the upper immediate row, respectively; also alternatively the AltGr function that is achieved by pressing Ctrl + Alt; These keys are located to be easily reached by the thumb. Depending on the operating system you can use the Win or Com variable to access that function, press the Ctrl + DL key or you can access it with the left Ctrl; The Alt key of Alternative is accommodated in the Right Alt; the AltGr key to access it is done by pressing the Left Alt key.

The keyboard includes a group of symbol keys in the left and right zones of rows 2 to 4 and a group of alphanumeric keys arranged in the center of the keyboard.

Said symbols keys; The symbols in the Special Functions mode produce automatic characters inherent to the keys on the keyboard. (? (_) when giving double space leaves parentheses and advances a space automatically. [? [_] when giving double space it leaves brackets and advances a space automatically. . { ? . { _} when giving double space it leaves keys and advances a space automatically. ? ? _? when giving double space it leaves interrogations and advances a space automatically. ! ? _! when giving double space it leaves admirations and advances a space automatically. ,? , | _ | pressing comma produces an automatic space. , + spac? . | _ | Pressing more space causes a point and an automatic space.

, + Enter? . NewLine by pressing comma and Enter produces a point and a new line.

When pressing < bk backspace erases a character on the left < bk + Left Shift? | < tab the key < bk + Left Shift produce the left Tab key < bk + Fn? < produces less than dl > "delete" deletes a character on the right dl > + Right Shift? tab > | the dl > + Right Shift produce the Right Tab key dl > + Fn? > produces greater than ~ "This symbol that is repeated on several keys is configured according to the language in which it is distributed The variable 'x' that is accessed by pressing the key D + the key DL or the key C + the key DL and is configured according to the language in which it is distributed there are characters that are not represented in all the languages.

The variable 'd' are symbols that can be configured according to the type of user.

Said alphanumeric keys are accommodated in the three central rows that allow the fingers to cover a larger area with more keys, and are inclined to be accessed according to the shape of the hand.

The most used letters in the languages English, Spanish, French, German, Portuguese are, in descending order: e, a, i, n, o, t, I, r, s, d, m, u, p, c, k, h, g, v, b, j, w, y, z, f, q, x.

Most used letters by group: On the keyboard the keys are located at the center in three rows staggered on its left side, being: Central Row the Most Comfortable.

Superior row with good comfort.

Bottom row with less comfort.

At the center and in the middle row the keys with the letters S, A, E, T, O indicated in the lower left corner are arranged; because they are the most frequent in repetition and are the first letters of a word more frequently, which is where the hand rests, has the best convenience and ease of typing without the need for key combinations. In these same keys are indicated in the lower right corner the letters B, G, V, Y, Q, used with less repetition; although they are first letters of words that are chosen when being combined with the DL key they have more (accessibility comfort) ease of access.

The keys with the letters D, L, N, R, C indicated in the lower left corner are arranged at the center and in the immediate upper row of the central row.; These are very frequent letters in repetition, they are in the upper row of the keyboard with good alphanumeric typing convenience, without the need to make key combinations. In the same keys, the letters _, F, Z, W, _ are indicated in the lower right corner; where the spaces are for characters of the languages in the case of Mexico the Ñ; are the letters less frequently and are placed in the top row to access them are combined with the DL Key.

In the central zone in the immediate row inferior to the central row the keys are arranged with the letters U, M, I, P located in the lower left corner for being letters with high frequency in repetition, with less comfort but easy access to typing . In these same keys are written the letters X, J, K, H that are achieved when combined with 'the DL key; they have better (accessibility comfort) ease of access' and force the hand, wrist and arm to leave their static position reducing the syndrome by repetitive effort already (take or resemble match copy) imitate the movement of writing "handwritten" .

The alphanumeric keys are positioned in an area of the keyboard where the strongest fingers of the hand, such as the thumb, the index finger and the middle finger, have better access.

The keyboard includes an Opt key. which is the key that opens the menu option on qwerty keyboards is on the lower right side between the win and control key The keyboard is configured as an interface that operates with the action of a programming software to execute its functions.

The digits of the alphanumeric keys are distributed from the following way: the digits 1 to 3 are arranged in the keys of the third subgroup of alphanumeric keys that include the letters M-J; L-K and P-H; the digits 4 to 6 are arranged on the keys of the first subgroup of alphanumeric keys that include the letters AG, EV and TY and digits 7 to 9 are arranged on the keys of the second subgroup of alphanumeric keys that include the letters LF, NZ and RW. while the digit 0 is available in the space key "Space".

Some keys such as arrows, Shift and Alt are distributed close together because you can not press both at the same time and the existing separation is eliminated.

The Shift key when pressed or pressed more than 3 uppercase characters will block the capitals, to unlock them you must press the Shift key again.

Just like the FN keys (Numeric functions) and the Shift key are unlocked by pressing themselves again The Shift Key also allows you to activate the alphanumeric keys in lowercase and uppercase.

In order to better understand the features of the invention, the following description, as an integral part thereof, is attached to the drawings, which are illustrative rather than limiting, which are described below.

BRIEF DESCRIPTION OF THE FIGURES Figure 1 illustrates a top view of the miniature keyboard for use with one hand, in accordance with the present invention.

For a better understanding of the invention, a detailed description will be made of some of the modalities thereof, shown in the drawings that are attached to the present description for non-limiting illustrative purposes.

DETAILED DESCRIPTION OF THE INVENTION The characteristic miniaturized keyboard details for use with one hand are clearly shown in the following description and in the accompanying illustrative drawings, with the same reference signs serving to indicate the same parts.

Referring to Figure 1 which shows a top view of the miniature keyboard for use with one hand, in accordance with the present invention. In this figure, the keyboard consists of 44 keys in an arrangement of five horizontal rows 1, 2, 3, 4 and 5, defined by control keys that consist of the pivot key DL (Lateral Digit) 6 arranged to the left of the bottom row 5, which is activated only when it is pressed, changes state at the end of pressing, this key seeks to obtain the symbols or characters marked in the lower right of the alphanumeric keys 7 located in the central area of the keyboard in the three central rows 2, 3 and 4; it does not maintain a state of automatic or manual on or off only serves as a pivot. The SDL 8 key placed in the upper right margin of the upper row 1 (or the Shift key 9 (located to the right of the middle row + the DL 6 key, incorporated in the Right Shift key), allows access to the symbols or characters marked in the upper right part of the alphanumeric keys 7, the SDL key is activated when it is pressed, it changes state at the end of pressing.

Another control key is the Fn key, this key allows access to the symbols or characters found in the central part of the key. The Fn 10 key is activated when it is pressed and changes state when you finish pressing it, access is obtained in two ways: By staying depressed.

Pressing more than three numeric digits (with the previous step keeping the key pressed or writing the numbers with time intervals without writing another key or press a different control key to Fn 10). To unlock this control key and return to the initial keyboard, press the DL 6 key.

Said control key Shift 9 (Left Shift and Right Shift defined by the arrows of said Shift key 9) placed to the right of the intermediate row 3, allows to select the symbols or characters marked in the upper left or in the upper right of the alphanumeric keys 7 and of the symbol keys 11; and finally the control key FE that is the same as the SDL 8 key that gives access to special functions or a predictive writing.

This control key FE (Special Functions (&| and / or Writing), when in writing mode uses the method of predictive writing of the system but its advantage is that you do not have to travel the distance from the rest row (which is the middle row of the alphanumeric keyboard part 7) until the text editor depending on the screen is the distance that a dead time is wasted that is suppressed by, the approach to the user's hand in rest position which is the part If you are not typing, these keys can be set by the user as shortcuts, macros, etc.

The keyboard further comprises five function keys (F1, F6, F 11) 12, (F2, F7 and F12) 13, (F3, F8.F13) 14, (F4, F9, F14) 15, (F5, F 10, F15) 16; which are arranged at the center of the upper row 1 where each key comprises three different functions and are operated in the following way: > Functions F1"Direct Click" access > Functions F2"Direct Click" access > Functions F3"Direct Click" access > Functions F4"Direct Click" access > Functions F5"Direct Click" access > Functions F6"Combined Click" access F1 + DL > Functions F7"Combined Typing" access F2 + DL > Functions F8"Combined Typing" access F3 + DL > Functions F9"Combined Typing" access F4 + DL > Functions F10"Combined Typing" access F5 + DL > Functions F11"Combi Click" access F1 + Left > Functions F12"Combi-Click" access F2 + Left > Functions F13"Combi Click" access F3 + Left > Functions F14"Combined Click" access F4 + Left Shift > Functions F15"Combined Click" access F5 + Shift Left In write mode the special function keys are used to access the options that the predictive mode offers. When it is not being written these can be configured by the user, such as shortcuts, macros, among others.

To access the writing mode options, the special function keys are used.

To activate the special functions press the Left Shift Key 9 + SDL 8. > To access option 1 of the Special Functions with special functions activated, the Key is pressed F1, > To access option 2 of the Special Functions with the special functions activated, the F2 key is pressed. > To access option 3 of the Special Functions with the special functions activated, press the F3 key.

To access option 4 of the Special Functions with the special functions activated, the F4 key is pressed. > To access option 5 of the Special Functions with special functions activated, the F5 key is pressed.

The keyboard also includes user-configurable functions, they are eligible by pressing the Right Shift key 9 plus the desired function F1 ... F5, arranged closer to the fingers for direct access.

The keyboard also includes four movement keys [(PgDn, V 17); (PgUP,? 18) in vertical arrangement; (Hom, <19); (End, > 20)] in horizontal arrangement] arranged in the upper left margin of the two upper rows 1 and 2, distributing in a smaller distance to reduce the travel of the index finger.

When pressing the keys [(PgDn, V 17); (PgUP,? 18) in vertical arrangement; (Hom, <19); (End, > 20)] directly allow the descent, ascent, and left and right lateral displacements, respectively; by pressing these keys directly [(PgDn, V 17); (PgUP,? 18) in vertical arrangement; (Hom, <19); (End, > 20)] and then the DL 6 key allows movement page down, page up and beginning of line and end of line, respectively; by pressing these keys directly [(PgDn, V 17); (PgUP,? 18) in vertical arrangement; (Hom, <19); (End,> 20)] and then the DL 6 key plus the Ctrl 21 key (arranged in the lower left margin of the bottom row 5), scrolls one page down, one page up, to the top of the page or to the end of the page, respectively.

The keyboard also includes modifier keys which are the keys Ctrl 21 (arranged in the lower left margin of the lower row 5) and Alt 22 located above the Ctrl key 21 in the second lower row 4; also alternatively the AltGr function that is achieved by pressing Ctrl 21 + Alt 22; These keys are located to be easily reached by the thumb. Depending on the operating system, you can use the Win or Com variable to access that function by pressing the Ctrl 21 + DL 6; Alt key 22, of Alternative is accommodated in the Right Alt; the AltGr key to access it is with the Left Alt.

Said group of symbol keys 11 in a left zone of rows 2 to 4 and in a right one in rows 2 to 4.

Also included is the Tab 23 key positioned at the end of row 2 for certain symbology; the keys Enter 24 positioned at the end of row 4 and the keys Fn 25 and Opc 26 at the end of row 5 and the space key Space 27 at the center of the bottom row 5.

The Fn 25 key allows access to the numeric functions and access the symbols at the center of the keys; it is activated or deactivated and also locked and unlocked.

The symbols in the Special functions mode produce automatic characters inherent to the typed ones. (? (_) when giving double space leaves parentheses and advances a space automatically. [? [_] when giving double space it leaves brackets and advances a space automatically. . { ? . { _} when giving double space it leaves keys and advances a space automatically. ? ? _? when giving double space it leaves interrogations and advances a space automatically. ! ? _! when giving double space it leaves admirations and advances a space automatically. , - > , | _ | pressing comma produces an automatic space. , + spac? . | _ | pressing comma produces a point and an automatic space.

, + Enter? . NewLine by pressing comma and Enter produces a point and a new line.

When pressing < bk backspace erases a character on the left < bk + Left Shift - > | < tab the key < bk + Left Shift produce the left Tab key < bk + Fn? < produces less than dl > delete deletes a character on the right dl > + Right Shift? tab > | the dl > + Right Shift produce the Right Tab key dl > + Fn? > produces greater than "· This symbol that is repeated on several keys is configured according to the language in which it is distributed.

The variable 'x' that is accessed by typing the key of the letter D + the DL 6 key or the letter key C + the DL 6 key is configured according to the language in which it is distributed, there are characters that are not represented in all the languages.

The variable 'd' are symbols that can be configured according to the type of user.

Said alphanumeric keys 11 are arranged in the three central rows 2, 3 and 4 which allows the strong fingers to cover a larger area and therefore more keys, and are inclined to be accessed according to the shape of the hand.

The most used letters in the languages: English, Spanish, French, German, Portuguese are, in descending order: e, a, i, n, o, t, I, r, s, d, m, u, p, c, k, h, g, v, b, j, w, y, z, f, q, x.

Most used letters by group: On the keyboard, the keys are located at the center in three central rows 2, 3 and 4 staggered on their left side, being: Central Row 3 the Most Comfortable.

Superior row 2 with good comfort.

Bottom row 4 with less comfort.

At the center and in the central row 3 are arranged the alphanumeric keys with the letters S, A, E, T, O indicated in the lower left corner; For being the most frequent in repetition and being the first letters of a word more frequently, which is where the hand rests, has the best comfort and ease of typing with the strongest fingers without the need to make key combinations. In these same keys are indicated in the lower right corner the letters B, G, V, Y, Q, used with less repetition; although they are first letters of words that are chosen when combined with the DL key they have more (accessibility comfort) ease of access At the center and in the upper immediate row 2 of the central row 3, the keys are arranged with the letters D, L, N, R, C indicated in the lower left corner; These are very frequent letters in repetition, they are in the upper row of the keyboard with good alphanumeric typing convenience, without the need to make key combinations. In the same keys, the letters _, F, Z, W, _ are indicated in the lower right corner; where the spaces are for characters of the languages in the case of Mexico the Ñ; are the letters less frequently and are placed in the top row to access them are combined with the DL Key.

In the central zone in the lower immediate row 4 to the central row 3, the keys are arranged with the letters U, M, I, P located in the lower left corner as letters with high frequency in repetition, with less comfort but easy click access. In these same keys the letters X, J, K, H are represented in the lower right corner that are obtained when combined with the DL 6 key; they have better (accessibility comfort) ease of access and force the hand, wrist and arm to leave their static position reducing the syndrome by repetitive effort and to (take or resemble match copy) imitate the movement of writing "written hand".

The alphanumeric keys 11 are positioned in a zone of the keyboard where the strongest fingers of the hand, which are the thumb, the index finger and the middle finger, have better access.

The invention has been sufficiently described so that a person with average skill in the art can reproduce and obtain the results that we mentioned in the present invention. However, any person skilled in the art who is competent in the present invention may be able to make modifications not described in the present application, however, if for the application of these modifications in a certain structure or in the manufacturing process thereof, the subject matter claimed in the following claims is required, said structures should be understood within the scope of the invention.

Claims (17)

CLAIMS Having sufficiently described the invention, the content of the following claim clauses is claimed as property.

1. - A miniature keyboard for use with one hand, characterized by comprising an arrangement of five horizontal rows, defined by: control keys consisting of the pivot key DL arranged to the left of the lower row, the SDL key arranged in the upper margin right of the upper row, a Fn key, which allows to select the symbols or characters marked either in the lower right, in the upper right or in the central part, respectively of a group of alphanumeric keys and a group of keys of symbols; as well as a control key Shift (Left Shift and Right Shift defined by the arrows of said Shift key) arranged to the right of the middle row that allows to select the symbols or characters marked in the upper left or upper right of a group of alphanumeric keys and a group of symbol keys, respectively; the same SDL key also includes the FE function that gives access to special functions or predictive writing; five function keys [(F1, F6, F11), (F2, F7 and F12), (F3, F8.F13), (F4, F9, F14), (F5, F10, F15) arranged at the center of the row that can be typed directly to choose the F1 ... F5 functions or type in combination with the DL control key to select the functions F6 ... F10 or in combination with the left shift key to select functions F11 .... F15; including special functions used to access the predictive mode options, as well as functions configurable by it; four movement keys [(PgDn, V); (PgUP,?) In vertical arrangement; (Hom, <); (End, >)] in horizontal array] arranged in the upper left margin of the two upper rows, distributing in a shorter distance to reduce the travel of the index finger, to activate directly for the displacement or in combination the pivot key DL and the Ctrl key for different scroll options; Modifier keys are the Ctrl and Alt keys located in the lower left margin in the lower row and the upper immediate row, respectively; also alternatively the AltGr function that is achieved by pressing Ctrl + Alt; said keys are located to be easily reached by the thumb, which can be operated directly or using the variables Win or together with the pivot key DL; also comprising a Tab key positioned at the end of the row for certain symbology; the Enter keys positioned at the end of row 4 and the keys Fn and Opc at the end of row 5 and a space key Space at the center of the bottom row 5.

2. - A miniature keyboard for use with one hand, characterized by understand, according to claim 1, characterized in that the function of the SDL key is activated with the Shift keys arranged to the right of the intermediate row + the DL key, incorporated in the Right Shift key.

3. - A miniature keyboard for use with one hand, characterized by understanding, according to claim 1, characterized in that said special functions are configurable by the user and are eligible by pressing the left Shift key plus the SDL key plus the function key desired F1 ... F5, arranged closer to the fingers for direct access.

4. - A miniature keyboard for use with one hand, characterized by understanding, according to claim 1, characterized in that said user-configurable functions are eligible by pressing the Right Shift key plus the desired function F1 ... F5, arranged closer to the fingers to have direct access.

5. - The miniature keyboard for use with one hand, characterized by understanding, according to claim 1, characterized in that said movement keys [(PgDn, V); (PgUP,?); (Hom, <); (End, >)] when pressed directly allow the descent, ascent and lateral displacements left and right, respectively; by pressing directly on these keys [(PgDn, V); (PgUP,?); (Hom, <); (End, >)] and then the DL key allows movement page down, page up and beginning of line and end of line, respectively; by pressing directly on these keys [(PgDn, V); (PgUP,?); (Hom, <); (End, >)] and then the DL key plus the Ctrl key scrolls one page down, one page up, at the beginning of the page or at the end of the page, respectively.

6. - The miniature keyboard for use with one hand, characterized by understanding, according to claim 1, characterized in that with said modifier keys the variable Win or Com can be used and to access that function the Ctrl + DL key is pressed; The Alt key of Alternative is accommodated in the Right Alt; the AltGr key to access it is with the Left Alt.

7. - The miniature keyboard for use with one hand, according to claim 1, characterized in that said group of symbols keys are arranged in the left and right zones of rows 2 to 4 and in the special functions mode they produce automatic characters inherent to the keys of the keyboard, either when pressed alone or in combination with the key, the key Enter, the key the key Tab that includes the functions < bk and dl > , the left or right Shift key and the Fn key.

8. - The miniature keyboard for use with one hand, according to claim 1, characterized in that for a variable "x" can be accessed by pressing the key D + the key DL or the key C + the key DL and is configured according to the language in which it is distributed.

9. - The miniature keyboard for use with one hand, according to claim 1, characterized in that said group of alphanumeric keys are arranged in the three central rows 2, 3 and 4 that allows the strong fingers to cover a larger area and therefore more keys, and are inclined to be accessed according to the shape of the hand.

10. - The miniature keyboard for use with one hand, according to claims 1 and 9, characterized in that said group of alphanumeric keys consists of a first subgroup arranged in the central row 3 that includes the keys of the letters S, A, E, T, O marked in the lower left corner; For being the most frequent in repetition and being the first letters of a word more frequently, which is where the hand rests, has the best comfort and ease of typing with the strongest fingers without the need to make key combinations.

11. - The miniature keyboard for use with one hand, according to claims 1, 9 and 10, characterized in that said first subgroup of alphanumeric keys comprising the letters S, A, E, T, O indicated in the lower left corner; it also includes the letters B, G, V, Y, Q, indicated in the corner lower, used with less repetition; although they are first letters of words that are chosen when being combined with the DL key they have more (accessibility comfort) ease of access.

12. - The miniature keyboard for use with one hand, according to claims 1 and 9, characterized in that said group of alphanumeric keys consists of a second subgroup arranged at the center and in the immediate upper row 2 of the central row 3 for being very frequent in repetition, comprising the D, L, N, R, C keys indicated in the lower left corner.

13. - The miniature keyboard for use with one hand, according to claims 1, 9 and 11, characterized in that said second subgroup of alphanumeric keys comprising the letters D, L, N, R, C indicated in the lower left corner, in addition it includes the letters _, F, Z, W, _, in the lower right corner, where the spaces are for characters characteristic of the languages in the case of Mexico Ñ; they are the letters with less frequency and they are accessed with the DL Key.

14. - The miniature keyboard for use with one hand, according to claims 1 and 9, characterized in that said group of alphanumeric keys comprises a third subgroup arranged in the central area of the keyboard in the lower immediate row 4 to the central row 3, which includes the letters U, M, I, P located in the lower left corner for being letters with high frequency in repetition, with less comfort but easy access to typing.

15. - The miniature keyboard for use with one hand, according to claims 1, 9 and 14, characterized in that said keys of the third subgroup of alphanumeric keys comprising the letters U, M, I, P located in the lower left corner; they also include the letters X, J, K, H in the lower right corner that are obtained when combined with the DL 6 key; which have better accessibility and force the hand, wrist and arm to leave their static position reducing the syndrome by repetitive effort and imitate the movement of writing "written hand".

16. - The miniature keyboard for use with one hand, according to claims 1 and 9 to 15, characterized in that the digits 1 to 3 are arranged on the keys of the third subgroup of alphanumeric keys that include the letters M-J; L-K and P-H; the digits 4 to 6 are arranged on the keys of the first subgroup of alphanumeric keys that include the letters AG, EV and TY and digits 7 to 9 are arranged on the keys of the second subgroup of alphanumeric keys that include the letters LF, NZ and RW.

17. - The miniature keyboard for use with one hand, according to claim 1, characterized in that the digit 0 is arranged in the space key "Space"