IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0634774
(2000-08-09)
|
발명자
/ 주소 |
- Griffin, Jason T.
- Holmes, John A.
- Lazaridis, Mihal
- Little, Herb A.
- Major, Harry R.
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출원인 / 주소 |
- Research In Motion Limited
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대리인 / 주소 |
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인용정보 |
피인용 횟수 :
125 인용 특허 :
45 |
초록
▼
A hand-held electronic device with a keyboard optimized for use with the thumbs is disclosed. In order to operate within the limited space available on a hand-held electronic device, the present invention optimizes the placement and shape of the keys, preferably using keys that are oval or oblong in
A hand-held electronic device with a keyboard optimized for use with the thumbs is disclosed. In order to operate within the limited space available on a hand-held electronic device, the present invention optimizes the placement and shape of the keys, preferably using keys that are oval or oblong in shape, and that are placed at angles designed to facilitate thumb-typing. The angles at which keys on either side of the keyboard are placed is complimentary.
대표청구항
▼
A hand-held electronic device with a keyboard optimized for use with the thumbs is disclosed. In order to operate within the limited space available on a hand-held electronic device, the present invention optimizes the placement and shape of the keys, preferably using keys that are oval or oblong in
A hand-held electronic device with a keyboard optimized for use with the thumbs is disclosed. In order to operate within the limited space available on a hand-held electronic device, the present invention optimizes the placement and shape of the keys, preferably using keys that are oval or oblong in shape, and that are placed at angles designed to facilitate thumb-typing. The angles at which keys on either side of the keyboard are placed is complimentary. mmunications Surveys, http://www.comsoc.org/pubs/surveys, vol. 2(4), p. 2-13, Fourth Quarter 1999.* Smart Antennas for Dummies, A. Jacobsen, Telenor Business Solutions AS, http:/www.telenor.no/fou/publisering/Rapp01/smart_antennas.pdf, Jul. 2000.* A new adaptive MAC layer protocol for broadband packet wireless networks in harsh fading and interference environments, A.S.Acampora et al., IEEE/ACM Transactions on Networking, vol. 8(3), p. 328-336, Jun. 2000.* High throughput slotted ALOHA packet radio networks with adaptive arrays, J. Ward et al., IEEE Transactions on Communications, vol. 41(3), p. 460-470, Mar. 1993.* Carrier-sense protocols for packet-switched smart antenna basestations, C. Sakr et al., 1997 International Conference on Network Protocols, p. 45-52, 1997.* Improving the performance of a slotted ALOHA packet radio network with an adaptive array, J. Ward et al., IEEE Transactions on Communications, vol. 40(2), p. 292-300, Feb. 1992.* An adaptive MAC prototcol for wireless ad hoc community network (WACNet) using electronically steerable passive array radiator antenna, S. Bandyopadhyay et al., 2001 IEEE Global Telecommunications Conference (GLOBECOM '01), vol. (5), p. 2896-2900, Nov. 2001.* WACNet: wireless ad-hoc community network, K. Gyoda et al., 26th Annual Conference of the IEEE Industrial Electronics Society (IECON 2000), vol. 2, p. 1153-1158, 2000.* Emerging adaptive antenna techniques for wireless ad-hoc networks, T. Ohira, 2001 IEEE International Symposium on Circuits and Systems (ISCAS 2001), vol. 4, p. 858-861, 2001.* ATR: Angle-SINR Table Routing for Wireless Ad-hoc Networks, Y. Ohno et al, IEICE General Conference, Mar. 2000. 278400, 20010800, Cassen et al.; US-6307622, 20011000, Lewis; US-6317073, 20011100, Tamatsu et al.; US-6317075, 20011100, Heide et al.; US-6317090, 20011100, Nagy et al.; US-6320547, 20011100, Fathy et al.; US-6327530, 20011200, Nishimura et al.; US-6329952, 20011200, Grace; US-6330507, 20011200, Adachi et al.; US-6335705, 20020100, Grace et al.; US-6345227, 20020200, Egawa et al.; US-6351702, 20020200, Tange et al.; US-6366235, 20020400, Mayer et al.; US-6469659, 20021000, Lajiness et al., 342/173; US-20020044082, 20020400, Woodington et al.; US-20020049539, 20020400, Russell et al.; US-20020067287, 20020600, Delcheccolo et al.
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