Typewriting machines – Key-board or key lever-actuating mechanism
Reexamination Certificate
1999-09-28
2001-02-20
Hilten, John S. (Department: 2854)
Typewriting machines
Key-board or key lever-actuating mechanism
C400S489000
Reexamination Certificate
active
06190068
ABSTRACT:
BACKGROUND OF INVENTION
The keyboard device for computer or electric typewriter in general includes a plurality of Alpha-Numeric keys. Within the Alpha-Numeric keys, the “Backspace” key may move backward the cursor to a desired location on the screen and, in addition, perform the deletion function during the backward movement. The “Delete” key, on the other hand, performs the deletion function over the content where the cursor is pointed to. The “Enter” key, on the other hand, inserts and End Mark of a paragraph where the cursor is pointed to and a new line is created. In a Chinese input system, the “Enter” key performs the input of the Chinese character into the computer system.
There are defects of ergonomics in connection with the conventional keyboards during operation. These defects have caused inconvenience when the user manipulates the “Backspace” key or “Delete” key or other functional keys. As a result, keyboard with new layout is designed and awarded respectively the U.S. Pat. No. 5,143,462 and 4,974,183.
Besides, in general, during a word processor session, one uses “Direction” keys, i.e. ↑←⇓→ keys, to move the cursor to a desired location, and afterwards input new content. One anther purpose of using the “Direction” keys is to correct the mistakes in the document. When this need arises, under the current technology, the right hand must move to the location of the “Backspace” key, and performs the backward movement of cursor and at the same time performs the deletion operation. Or, alternatively, the right hand must move to the location of the “Delete” key, and performs the forward movement of cursor and at the same time performs the deletion operation. It is obvious that those operations requires the movement of the palm and it is inconvenient.
SUMMARY OF INVENTION
The main object of the invention is to provide a new keyboard layout which allows the finger of the user reaches the “Direction” keys, “Backspace” key, and the “Delete” key easily.
The another object of the invention is to save the time spent on the movement of the fingers between keys of the keyboard during data processing session.
A keyboard including a plurality of alpha-numeric keys; a plurality of Direction keys, and a Backspace key is provided. The plurality of Direction keys includes →, ←,↑,⇓ keys to form an area of Direction keys. The Backspace key is adjacent to the area of Direction keys for allowing a user's fingers to move between Direction keys and Backspace key without moving the palm.
In accordance with another embodiment, a keyboard including a plurality of alpha-numeric keys; a plurality of Direction keys, a Delete key, a Backspace key and a Enter is provided. The plurality of Direction keys includes →,←,↑,⇓ keys to form an area of Direction keys. The Delete key, the Backspace key and the Enter key are adjacent to the area of Direction keys for allowing a user's fingers to move between Direction keys, the Delete key, the Backspace key and the Enter key without moving the palm.
REFERENCES:
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“Yanmaha, YI503” keyboard, http://www.pfu.co.jp/hhkeyboard , front page.
“Sharp X68000” keyboard, http://www.pfu.co.jp/hhkeyboard , front page.
“NCD UniX97” keyboard, http://www.pfu.co.jp/hhkeyboard , front page.
One-page keyboard diagram, marked “DEC VT100”, found at website: http://www.pfu.co.jp/hhkeyboard/kb-collection/vt100.gif.
One-page keyboard diagram, marked “SHARP MZ-2500”, found at website: http://www.pfu.co.jp/hhkeyboard/kb-collection/mz-2500.gif.
One-page keyboard diagram, marked “J. OASYS 100”, found at website: http://www.pfu.co.jp/hhkeyboard/kb-collection/oasys100.gif.
One-page keyboard diagram, marked “J. OASYS 100F”, found at website: http://www.pfu.co.jp/hhkeyboard/kb-collection/oasys100f.gif.
One-page keyboard diagram, marked “J. OASYS 100h x2”, found at website: http://www.pfu.co.jp/hhkeyboard/kb-collection/oasys100hx2.gif.
One-page keyboard diagram, marked “APPLE EMATE”, found at website: http://www.pfu.co.jp/hhkeyboard/kb-collection/emate.gif.
Acer Peripherals Inc.
Coudert Brothers
Hilten John S.
Nguyen Anthony H.
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