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(12) United States Patent (10) Patent No.: US 7,656,317 B2 Salman Et Al

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(12) United States Patent (10) Patent No.: US 7,656,317 B2 Salman Et Al USOO7656317B2 (12) United States Patent (10) Patent No.: US 7,656,317 B2 Salman et al. (45) Date of Patent: Feb. 2, 2010 (54) REDUCED KEYPAD FOR MULTI-TAPINPUT (58) Field of Classification Search ................... 341/20, 341/22; 345/168: 379/355.07, 433.07, 433.04; (75) Inventors: Majeed D. Salman, Redmond, WA 382/229; 715/811 (US); G. Eric Engstrom, Kirkland, WA See application file for complete search history. US (US) (56) References Cited (73) Assignee: Varia LLC, Seattle, WA (US) U.S. PATENT DOCUMENTS (*) Notice: Subject to any disclaimer, the term of this 6,643,371 B2 * 1 1/2003 Mager ................... 379,355. O7 patent is extended or adjusted under 35 7,084,858 B2 8/2006 Anson ........................ 345/169 U.S.C. 154(b) by 628 days. 2002/0136372 A1 9/2002 Bozorgui-Nesbat 2006/0263 137 A1* 11/2006 Griffin ........................ 400,485 (21) Appl. No.: 111547,827 * cited by examiner (22) PCT Filed: Feb. 17, 2005 Primary Examiner Albert K Wong (86). PCT No.: PCT/US2005/005054 (74) Attorney, Agent, or Firm Schwabe Williamson & Wyatt P.C. S371 (c)(1), (2), (4) Date: Oct. 6, 2006 (57) ABSTRACT (87) PCT Pub. No.: WO2005/109645 An apparatus (625) with a first plurality of input keys (635). Some of the first input keys may be associated with both a PCT Pub. Date: Nov. 17, 2005 numeric value and a first set of alphabetic values and arranged O O in a first alphabetic keypad layout. The apparatus (625) is (65) Prior Publication Data further provided with a second plurality of input keys (645), US 2007/02792.56A1 Dec. 6, 2007 positioned adjacent to the first plurality of input keys (635), and being associated with at least one alphabetic value. Some Related U.S. Application Data of the input keys of the second plurality of input keys (645) (60) Provisional application No. 60/565,638, filed on Apr. may be arranged in a second alphabetic keypad layout differ 27, 2004, provisional application No. 60/566,676 ent from the first alphabetic keypad layout. Further, in various filed O Apr. 30, 2004, provisional application No. embodiments, at least some input keys of the first plurality of 6O7567,214 filed O Apr. 30, 2004, provisional appli- input keys (635) have a second set of alphabetic values that is cation No. 60/566,704, filed on Apr. 30, 2004. used as part of the second alphabetic keypad layout. Addi tionally, in various embodiments, at least some of the alpha (51) Int. Cl. betic values of the second keyboard layout are arranged at H03M II/00 (2006.01) least partially based on a frequency of use of Such alphabetic (52) U.S. Cl. ...................... 341/23: 341/22; 379/355.07; values. 379/.433.07: 379/.433.04; 382/229; 715/811; 345/168 8 Claims, 10 Drawing Sheets 825 856 ? 854 . 6.1 - U.S. Patent Feb. 2, 2010 Sheet 1 of 10 US 7,656,317 B2 120 100 (Q) (w) (E) (R) (T) (y) (DGDO) (P) G)(s) (DGE)G)(EDG) () (DG) 110 (2)(x) (C)(V)(B)(N) ()OOOD GE)(a) CsPACE d(D)(ed) Fig.1. (Prior Art) U.S. Patent Feb. 2, 2010 Sheet 2 of 10 US 7,656,317 B2 Fig.2. (Prior Art) U.S. Patent Feb. 2, 2010 Sheet 3 of 10 US 7.656,317 B2 330 300 \ COMMUNICATIONINTERFACE 320 31 O 40 PROCESSING UNIT 3 DISPLAY (OPTIONAL) 31 5 3 25 CONTROLLER KEYPAD 355 OPERATING SYSTEM 360 350 APPLICATION(S) 365 KEY MAP 375 INPUT ROUTINE U.S. Patent Feb. 2, 2010 Sheet 4 of 10 US 7,656,317 B2 340 4OO \ DISPLAY as 315 CONTROLLER -405 123456 is 789 kills N-N-2365 KEY QRY PAIDG JILIZICBM. Šiš. wTU to Is FHK XVIN, of E 1 2 3P 6 789 NUMBER OF KEYSTROKES U.S. Patent Feb. 2, 2010 Sheet 5 of 10 US 7,656,317 B2 501 BEGIN MULTITAP TEXT INPUT 500 505 INTIALIZE ACTIVATION COUNT 510 DETECT KEY ACTIVATION FIRST 515 ACTIVATION OR SAME KEY NO ACTIVATED? YES NO INCREMENT ACTIVATION COUNT DISPLAY TENTATIVE CHARACTER CORRESPONDING TO KEY AND ACTIVATION COUNT DISPLAY CHARACTER YSS CORRESPONDING TO KEY AND ACTIVATION COUNT U.S. Patent Feb. 2, 2010 Sheet 6 of 10 US 7.656,317 B2 635e 635 635a 640 645 640 QW 638 l 645b 645a AS 645C 645d 635b 635d U.S. Patent Feb. 2, 2010 Sheet 7 of 10 US 7,656,317 B2 625A 638A OW AS Fig.6A. U.S. Patent Feb. 2, 2010 Sheet 8 of 10 US 7.656,317 B2 700 (E) — 725 745 745b. - 745d U.S. Patent Feb. 2, 2010 Sheet 9 of 10 US 7,656,317 B2 825 856 / 835g 854 of r U.S. Patent Feb 2 , 2010 Sheet 10 of 10 US 7 9 656,317 B2 $$$$$$§§§§§§§§§ US 7,656,317 B2 1. 2 REDUCEDKEYPAD FOR MULT-TAP NPUT FIG. 7 illustrates a mobile electronic device having a reduced keypad in accordance with an embodiment; RELATED APPLICATIONS FIG. 8 illustrates an example of a reduced keypad in accor dance with an embodiment; and This application claims the benefit of priority from Provi FIG. 9 illustrates six exemplary non-English language key sional Application Ser. No. 60/565,638 filed Apr. 27, 2004, board layouts that may be implemented in a reduced manner Provisional Application Ser. No. 60/566,676 filed Apr. 30, in accordance with embodiments of the invention. 2004, Provisional Application Ser. No. 60/567,214 filed Apr. 30, 2004, and Provisional Application Ser. No. 60/566,704, DETAILED DESCRIPTION filed Apr. 30, 2004, all of which applications are fully incor 10 porated herein by reference. Embodiments of the present invention include, but are not limited to, a reduced keypad for a mobile electronic device TECHNICAL FIELD and apparatuses including the same. Parts of the description will be presented in terms such as The present disclosure is related to the field of electronic 15 portable or mobile electronic devices. As well understood by device user interfaces. More specifically, but not exclusively, those skilled in the art, the term “portable/mobile electronic the present disclosure relates to the design of input mecha device' as used herein (hereafter, simply “electronic nisms for use in mobile electronic devices. device'), including in the claims, comprise wireless mobile phones, PDAs, and the like. BACKGROUND INFORMATION The term “wireless mobile phone' as used herein refers to the class of telephone devices equipped to enable a user to Mobile electronic devices have become ubiquitous in make and receive calls wirelessly, notwithstanding the user's today’s fast paced society. Various portable or mobile hand movement, as long as the user is within the communication held devices can perform multiple tasks as well as provide reach of a service or base station of a wireless network service multiple communication systems. For example, the personal 25 provider. Unless specifically excluded, the term "wireless digital assistant ("PDA) cellular telephone, in addition to mobile phone' is to include the analog Subclass as well as the serving as a personal organizer and cellular phone, may also digital Subclass (of all signaling protocols). provide text messaging, paging, and Internet connectivity. In the following description, various aspects of the illus Providing a user-friendly interface, however, can be a chal trative embodiments will be described. It will be apparent, lenge for manufacturers because of the limited Surface area 30 however, to those skilled in the art that alternate embodiments available on the usually handheld devices. of the present invention may be practiced with all or only The traditional, non-portable computer desktop has gener some aspects of the present invention. For purposes of expla ally utilized an input keyboard having a QWERTY keyboard nation, specific numbers, materials and configurations are set layout, a keyboard layout that gained its name from the first forth in order to provide a thorough understanding of the six letters of the top row that spell “QWERTY”. Most users 35 described embodiments. However, it will be apparent to one are familiar with the QWERTY layout and many mobile skilled in the art that alternate embodiments of the present electronic devices have a miniaturized QWERTY keyboard. invention may be practiced without the specific details. In Use of keys on a miniaturized QWERTY keyboard, however, other instances, well-known features are omitted or simpli can be difficult due to reduced key size and spacing. fied in order not to obscure the illustrative embodiments. Other mobile devices, such as a simple cellular telephone, 40 Various operations will be described as multiple discrete may include only a conventional 12-key telephone keypad. steps, in a manner that is most helpful in understanding the Several methods have evolved for entering text on the tele described embodiments, however, the order of description phone keypad, Such as for example, multi-tap input or pre should not be construed as to imply that these operations are dictive text entry (e.g., T9 Text Input TM by America Online, necessarily order dependent. In particular, these operations Inc., of Dulles, Va.). Despite Such methods, entering alpha 45 need not be performed in the order of presentation. betic characters via a typical 12-key telephone keypad may The phrase “in one embodiment' is used repeatedly. The remain inefficient for users because the telephone keypad is phrase generally does not refer to the same embodiment, not designed for text entry. however, it may. The terms “comprising”, “having and “including are synonymous, unless the context dictates oth BRIEF DESCRIPTION OF THE DRAWINGS 50 erwise. The embodiments are described herein with respect to a FIG.
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