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(12) Patent Application Publication (10) Pub. No.: US 2009/0256728 A1 Griffin (43) Pub

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(12) Patent Application Publication (10) Pub. No.: US 2009/0256728 A1 Griffin (43) Pub US 2009025,6728A1 (19) United States (12) Patent Application Publication (10) Pub. No.: US 2009/0256728 A1 Griffin (43) Pub. Date: Oct. 15, 2009 (54) HANDHELD ELECTRONIC DEVICE WITH (60) Provisional application No. 60/341,758, filed on Dec. KEYBOARD 21, 2001. (76) Inventor: Jason T. Griffin, Waterloo (CA) Publication Classification (51) Int. Cl. Correspondence Address: H03M II/00 (2006.01) NOVAK DRUCE + QUIGG LLP (RIM) (52) U.S. Cl. .......................................................... 341?22 1OOO LOUSANA STREET, FIFTY THIRD FLOOR 9 (57) ABSTRACT HOUSTON, TX 77002 (US) A keyboard includes a plurality of keys each of which is associated with indicia corresponding to at least one of alpha (21) Appl. No.: 12/480,995 betic characters, numbers, or commands. The keys of the plurality of keys associated with alphabetic characters num (22) Filed: Jun. 9, 2009 ber fewer than 26 and greater than nine. No more than two alphabetic characters are associated with each of the keys O O associated with alphabetic characters. At least one of the keys Related U.S. Application Data associated with alphabetic characters is associated with two (63) Continuation of application No. 10/872,983, filed on alphabetic characters and at least one number. The numbers Jun. 21, 2004, now Pat. No. 7,561,685, which is a are arranged and displayed in the format of a phone keypad continuation of application No. PCT/CA02/01961, and the letters are arranged and displayed in a keyboard filed on Dec. 17, 2002. layout. k- Auxiliary I/O 28 k- Serial Port Microprocessor Keyboard 32 34 - Microphone 36 Other Dewice Short-Range Subsystems Communications A2 AO Patent Application Publication Oct. 15, 2009 Sheet 1 of 5 US 2009/0256728A1 Patent Application Publication Oct. 15, 2009 Sheet 2 of 5 US 2009/0256728A1 Patent Application Publication Oct. 15, 2009 Sheet 3 of 5 US 2009/0256728A1 32C Patent Application Publication Oct. 15, 2009 Sheet 4 of 5 US 2009/0256728A1 Figure 9 Patent Application Publication Oct. 15, 2009 Sheet 5 of 5 US 2009/0256728A1 s')G)(3)(EOC) Ny *QQQQQQ*(i) ge (E) () Figure 11 US 2009/025,6728 A1 Oct. 15, 2009 HAND HELD ELECTRONIC DEVICE WITH alphabetic key, a plurality of alphanumeric keys, a command KEYBOARD key, and a keyboard interpreter. The alphabetic key corre sponds to at least one alphabetic value, and is for actuating a CROSS-REFERENCE TO RELATED signal corresponding to its at least one alphabetic value. Each APPLICATIONS of the plurality of alphanumeric keys corresponds to a 0001. This application is a continuation of International numeric value and at least one alphabetic value, and is for Application No. PCT/CA02/01961, filed Dec. 17, 2002, actuating a signal that corresponds to its corresponding which claims the benefit of priority from U.S. Provisional numeric and at least one alphabetic values. The plurality of Application No. 60/341,758, filed on Dec. 21, 2001. alphanumerickeys are arranged to provide the numeric layout of a telephone keypad, and in a presently preferred embodi FIELD ment the full keypad, are arranged in conjunction with the 0002 This application relates generally to the field of alphabetic key to provide a standard keyboard layout. The Small handheld electronic devices and especially to dual command key is for actuating a signal corresponding to a mode handheld communication devices or mobile stations command key value. The keyboard interpreter is for receiving with a keyboard input. More particularly, the present appli the signals actuated by the alphabetic key, the plurality of cation relates to textual input keyboards for use in Such alphanumeric keys, and the command key, and mapping the devices. received signals to a sequence of alphanumeric, alphabetic and command values. In a presently preferred embodiment, BACKGROUND the standard keyboard layout is a conventional QWERTY keyboard layout, and the keypad is centered within it. In an 0003. Existing keyboards or keypads for small handheld alternate embodiment, the alphabetic key, the plurality of devices often use the standard 12-key telephone keypads alphanumeric keys, and the command key are provided by an (herein collectively referred to as keypads). These keypads electronic touch display, which is preferably a touch sensitive typically have four rows of three buttons. The first three rows liquid crystal display. In another embodiment of the first are typically formed from the numbers 1-9, arranged left to aspect, the alphanumeric keys include only alphabetic values. right, top to bottom, in increasing order. The fourth row is In a further embodiment, the alphabetic key and each of the formed from the keys * 0 and it. Alphabetic values are plurality of alphanumeric keys provides one input signal to ascribed to keys 2-9 in a standardized alphabetic order. Typ the keystroke interpreter, which employs predictive text rou ing text using such keypads requires the user to input data in tines for mapping the received signals to a sequence of alpha an unfamiliar manner. Other kinds of keyboards follow the numeric and command values. In another embodiment, the Dvorakor, more commonly, the QWERTY keyboard models command key corresponds to one of a group consisting of an and are used in portable handheld devices such as the RIM ALT key, a SPACEBAR key, a RETURN key, a BACK 950 Wireless HandheldTM. This kind of keyboard, when SPACE key and a SHIFT key. adapted to handheld devices, uses a plurality of Small indi 0008. A second aspect concerns a mobile device, such as a vidual keys optimised for operation with the thumbs of the two-way pager, a data-messaging device, a personal data user. However, Such a keyboard has considerably more keys assistant and a cellular telephone. The mobile device has a than a keypad and the larger number of individual keys keyboard, a microprocessor and a software application requires more space on a printed circuit board (PCB) than a executable by the microprocessor. The keyboard has an keypad. Typically, each key requires its own footprint and alphabetic key corresponding to at least one alphabetic value, switch on the PCB. Because of the relatively small size of for actuating a signal corresponding to its at least one alpha such handheld devices, PCB space is limited and a QWERTY betic value, a plurality of alphanumeric keys, each of the or Dvorak type keyboard takes up valuable real estate on the plurality corresponding to a numeric value, and at least one PCB. alphabetic value, each key for actuating a signal correspond 0004 Such a keyboard also requires a great deal of tooling ing to its corresponding numeric and at least one alphabetic in order to accommodate the large number of individual keys values, the plurality of alphanumeric keys arranged to provide in the housing of a handheld device. This tooling adds to the numeric layout of a telephone keypad, and arranged in manufacturing costs. Furthermore, on a device with a conjunction with the alphabetic key to provide a standard QWERTY style keyboard, it is difficult to enter numerical keyboard layout, a command key, for actuating a signal cor inputs such as a telephone number. Traditionally phone num responding to a command key value and a keyboard inter bers are entered using keypads, and having to use a QWERTY preter for receiving the signals actuated by the alphabetic key, style keyboard for Such inputs, where the numbers appear in the plurality of alphanumeric keys, and the command key, for a row above the letters, is considered awkward by users. mapping the received signals to a sequence of alphanumeric, 0005. It is, therefore, desirable to reduce the number of alphabetic and command values. The microprocessor is keys necessary for a QWERTY or DVORAK type keyboard operatively connected to the keyboard and receives from the layout used with handheld devices. It is, also desirable to keyboard a sequence of alphabetic, alphanumeric and com combine the functionality of a QWERTY style keyboard and mand values, which are used for controlling the operation of a keypad for use in a dual-mode communication device. the device. The software application provides a plurality of operational features and initiates such features upon detection SUMMARY of certain inputs from the keyboard. In an embodiment of the 0006. It is an object of the example keyboard to obviate or second aspect of the example mobile device, the mobile mitigate at least one disadvantage of existing keyboards or device includes a display, which is preferably a touch sensi keypads used with small handheld electronic devices. tive liquid crystal display. In one embodiment, the keyboard is 0007. In a first aspect, the example keyboard provides a displayed on the touch sensitive liquid crystal display, and the keyboard for a mobile device. The keyboard includes an keyboard interpreter employs predictive text routines for US 2009/025,6728 A1 Oct. 15, 2009 mapping the received signals to a sequence of alphabetic, number of keys also provides users with the ability to actuate alphanumeric and command values. larger keys in the same Surface area of a device that would 0009. The keyboard provides a keyboard with a standard otherwise be required to provide keys for all 26 alphabetic layout, so that a user can input information and commands values, 10 numeric values and at least two non-alphanumeric with a keyboard that is familiar, while allowing a manufac values. The reduced number of keys can now be used to turing process that reduces the number of keys required to provide fewer, and thus larger, keys. The presence of larger provide the standard keyboard layout. This allows for a reduc keys reduces the difficulty of actuating a single Small key that tion in the complexity of the casing, and reduces the number is surrounded by other keys.
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