Nodal point arrangement for keys on a keyboard

• US 6,452,513 B1
• Filed: 02/28/2000
• Issued: 09/17/2002
• Est. Priority Date: 02/28/2000
• Status: Expired due to Fees

• Current Assignee: Movita Technologies Incorporated
• Original Assignee: Movita Technologies Incorporated
• Inventors: Kuo, Chi-Cheng
• Primary Examiner(s): Horabik, Michael
• Assistant Examiner(s): WONG, ALBERT KANG
• Application Number:
  US09/514,363
• Time in Patent Office: 932 Days
• Field of Search: 341/26, 341/22, 341/20, 361/680, 400/496
• US Class Current: 341/26
• CPC Class Codes: G06F 3/0219 Special purpose keyboards

Abstract

A nodal point arrangement of keys on a keyboard comprises a nodal point layout of 8 rows and 16 columns, having 144 nodal points, some of the nodal points for switching with single key pressing, and rest of the nodal points for switching with two or more keys pressing. RCTRL and LCTRL are lined up in a row or a column to form a set. RSHIFT and LSHIFT are lined up in a row or a column to form a set either. RALT and LALT are lined up in a row or a column to form a set either. These three sets are disposed at the row or the column different with each other. APP is disposed at a row or a column same as either one of said three set. Fn is not allowed to locate at a row or a column same as RCTRL, LCTRL, RSHIFT, LSHIFT, RALT, LALT, and LWIN.

Claims

1. A nodal point arrangement of keys on a keyboard, comprising:

a nodal point layout of 8 rows and 16 columns, having 144 nodal points, some of the nodal points for switching with single key pressing, and the rest of the nodal points for switching with two or more keys pressing;

characterized in that RCTRL and LCTRL keys are lined up in a row or a column to form a set, RSHIFT and LSHIFT keys are lined up in a row or a column to form a set, and RALT and LALT keys are lined up in a row or a column to form a set;

said three sets are disposed at the row or the column different from each other;

APP key is disposed at a row or a column that is the same as any one of said three sets; and

Fn key is not located at a row or a column with the RCTRL, LCTRL, RSHIFT, LSHIFT, RALT, LALT, or LWIN keys.

2. A nodal point arrangement for keys on a keyboard as defined in claim 1, wherein the nodal point of APP key and the nodal point of Fn key are disposed in the same row or column.