Switching device and switching methods of the same

• US 7,978,172 B2
• Filed: 12/16/2004
• Issued: 07/12/2011
• Est. Priority Date: 12/19/2003
• Status: Expired due to Fees

• Current Assignee: Fujitsu Component Limited (Fujitsu Limited)
• Original Assignee: Fujitsu Component Limited (Fujitsu Limited)
• Inventors: Fujita, Kenichi
• Primary Examiner(s): Lefkowitz; Sumati
• Assistant Examiner(s): Carter, III; Robert E
• Application Number:
  US11/012,238
• Publication Number:
  US 20050190148A1
• Time in Patent Office: 2,399 Days
• Field of Search: 345 11- 33, 345156-167, 709217-219, 715/700, 715/764, 715/778, 715/856, 715/862
• US Class Current: 345/156
• CPC Class Codes: G06F 3/023 Arrangements for converting discrete items of information into a coded form, e.g. arrangements for interpreting keyboard generated codes as alphanumeric codes, operand codes or instruction codes
• CPC Class Codes: G06F 3/038 Control and interface arrangements therefor, e.g. drivers or device-embedded control circuitry

Abstract

A switching device that selectively changes a computer to be operated from multiple computers including a control unit that the control unit detects a cursor position on the computer to be operated based on coordinate data and a computer resolution of the computer to be operated, the coordinate data being generated by performing a same acceleration process as the computer to be operated, on relative coordinate data that has been acquired from a given pointing device, and the control unit selectively changing changes the computer to be operated according to the cursor position. It is thus possible to selectively change the computer to be operated without any dedicated software or requiring a given space for manipulation.

Claims

1. A switching device that selectively changes a computer to be operated from multiple computers connected to at least one display, the switching device comprising:

a control circuit configured to acquire a computer resolution of the computer to be operated from video signals of the computer to be operated;

a memory configured to store the acquired computer resolution; and

a control unit configured to input and store in the memory an acceleration setting of an input device used to move a cursor position of the computer to be operated, to move a cursor position of the computer to be operated to a predetermined position so that the cursor position coincides with coordinates that indicate the cursor position within the switching device, to receive relative coordinate data from the input device according to a manipulation of the input device, to calculate an acceleration of the input device based on the stored acceleration setting, to send the relative coordinate data to the computer to be operated without change, to add coordinate data that the acceleration has been performed on to the predetermined position and store the added value in the memory, to calculate a current cursor position on the computer to be operated based on the added value and the resolution of the computer to be operated and determine if the cursor has reached an edge of the at least one display that is indicated by the resolution of the computer to be operated, to compare an amount of input device movement that exceeds the edge with a predetermined switching determination amount stored in the memory when the cursor has reached an edge of the at least one display and the switching device receives the relative coordinate data from the input device that is moving toward an outside of the at least one display, and to selectively change the computer to be operated when the amount of input device movement that exceeds the edge exceeds the predetermined switching determination amount.

2. A switching method of a switching device that selectively changes a computer to be operated from multiple computers connected to at least one display, comprising:

acquiring a computer resolution of a computer to be operated from video signals of the computer to be operated;

storing the acquired computer resolution in a memory of the switching device;

inputting and storing in the memory an acceleration setting of an input device used to move a cursor position of the computer to be operated;

moving a cursor position of the computer to be operated to a predetermined position so that the cursor position coincides with coordinates that indicate the cursor position within the switching device;

receiving, in the switching device, relative coordinate data from the input device according to a manipulation of the input device;

calculating, in the switching device, an acceleration of the input device based on the stored acceleration setting;

sending the relative coordinate data to the computer to be operated without change;

adding coordinate data that the acceleration has been performed on to the predetermined position and storing the added value in the memory;

calculating a current cursor position on the computer to be operated based on the added value and the resolution of the computer to be operated and determining if the cursor has reached an edge of the at least one display that is indicated by the resolution of the computer to be operated;

when the cursor has reached an edge of the at least one display, if the switching device receives the relative coordinate data from the input device that is moving toward an outside of the at least one display, comparing an amount of input device movement that exceeds the edge with a predetermined switching determination amount stored in the memory; and

when the amount of input device movement that exceeds the edge exceeds the predetermined switching determination amount, selectively changing the computer to be operated.