Summary of patents (2)

玕赫 - 龄 いゅ块龄絃
[俞祖祯 - 十键 中文输入键盘 ]

USD0370899: Top surface of a keypad View Images (2 pages) | View Cart Add to cart: PDF (~190 KB) | TIFF (~150 KB) | SmartPatent (~150 KB) | Fax | More choices... Inventor(s):

Yu; Cho J. ,

Irvine, CA 92715

Applicant(s): none Issued/Filed Dates: June 18, 1996 / Sept. 22, 1994 Application Number: US1994000028771 IPC Class: none Class: Current: D14/115; Original: D14/115; Field of Search: D14/100,101,106,115 D18/1,2,7,11 235/145 A,145 R 200/5 A,5 R,6 A,6 R 345/160 341/22,23 364/708.1 400/109,110 Primary/Assistant Examiners: Nunn; Freda; U.S. References: Show the 1 patent that references this one Patent Issued Inventor(s) Title US4543631 9 /1985 Kurosu et al. Japanese text inputting system having interactive mnemonic mode and display choice mode US5197810 3 /1993 Zhang et al. Method and system for inputting simplified form and/or original complex form of Chinese character

Claim:

The ornamental design for a top surface of a keypad, as shown and described.

To visit US D370899 for graphs 龄 いゅ块龄絃 [十键 中文输入键盘图] in IBM patents search site.

Foreign References: none (No patents reference this one) Other References: IBM Technical Disclosure Bulletin vol. 29 No. 12 May 1987 pp. 5383-5384. Nominate this invention for the Gallery...:

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龄 粂ゅ块龄絃
All-language 10-keypad
[俞世千 俞世荣 - 万能语文输入 十键盘]

US5852414: 4-way triangular-shaped alphanumeric keyboard View Images (7 pages) | View Cart Add to cart: PDF (~665 KB) | TIFF (~525 KB) | SmartPatent (~525 KB) | Fax | More choices... Inventor(s):

Yu; Seymour H. ,玕

Irvine, CA 92715

Yu; David H. ,玕篴

Irvine, CA 92715

Applicant(s): none Issued/Filed Dates: Dec. 22, 1998 / Jan. 4, 1995 Application Number: US1995000368348 IPC Class: H03K 017/94; Class: Current: 341/022; 200/005.A; 200/006.A; 341/020; 708/145; Original: 341/022; 341/020; 341/022; 200/005.A; 200/006.A; 364/709.15; Field of Search: 341/20,21,22 345/168 200/5 A,6 A,6 R 364/709.12,709.15

Abstract:

A triangle shape 4-way switching button for entering alphanumeric data on a 10-key pad. Each key may be used to input four characters by pressing the center of the key or one of the three corners. Each stroke enters one character, alphabet or number. Thus, an ultraminiature hand-held computer or device can be developed or manufactured.

Primary/Assistant Examiners: Hofsass; Jeffery; Mannava; Ashok

U.S. References: (No patents reference this one) Patent Issued Inventor(s) Title

US3705424 12 /1972 Harvey, Jr. ELECTRICAL SWITCHING APPARATUS UTILIZING CONDUCTIVITY OF THE HUMAN SKIN

US3879618 4 /1975 Larson Touch sensitive electronic switch

US4159471 6 /1979 Whitaker Communication system using binary compatible characters

US4256931 3 /1981 Palisek Multiple dome switch assembly having pivotable common actuator

US4554426 11 /1985 Caste Multiple key with invisible hinge

US4891777 1 /1990 Lapeyre Single hand keyboard arrays providing alphanumeric capabilities from twelve keys

US5124514 6 /1992 Chen Structure of mechanical key switch

US5184490 2 /1993 Takahashi Key switch assembly

US5199556 4 /1993 Lee Structure of key switch

First Claim:

Show all 2 claims

We claim: 1. A triangle-shaped 4-way-switching key for a keypad consisting of 10 keys alternating upwards- and downwards-pointing positioned for entering alphanumeric data into computer or communication device, while the keys are in its first state, these 10 keys are used to enter the numbers 0 to 9 respectively, while in other three states, these 10 keys are used to enter alphabets A to Z respectively wherein each of the 10 keys has four pressing areas consisting of a first are met by the center area and the other three areas met by the corner areas, and when the first area is being pressed, the key is in said first state and the whole key sinks, when the key is in one of said other three states, one of the corners is pressed and the pressed corner tilts downwards.

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