Method and apparatus for providing an undo/redo mechanism

• US 8,793,577 B2
• Filed: 01/08/2008
• Issued: 07/29/2014
• Est. Priority Date: 01/11/2007
• Status: Active Grant

• Current Assignee: Koninklijke Philips N.V.
• Original Assignee: Koninklijke Philips N.V.
• Inventors: Mosis, Georgio, Schellingerhout, Nicolaas Willem
• Primary Examiner(s): Bashore, William
• Assistant Examiner(s): NABI, REZA U
• Application Number:
  US12/521,895
• Publication Number:
  US 20100050188A1
• Time in Patent Office: 2,394 Days
• Field of Search: 715/704
• US Class Current: 715/704
• CPC Class Codes: G06F 9/451 Execution arrangements for user interfaces

Abstract

A method is described for providing a continuous undo/redo mechanism. The method comprises the steps of: —recording a history of a plurality of time stamped events based on reversible user actions. —navigating through the history by means of a continuous user input device, —translating the position of the continuous user input device to a point in time, and—identifying and displaying an intermediary state of the history based on the point of time.

Claims

1. A method for providing a continuous undo/redo mechanism comprising acts of:

recording a history based on continuously reversible user actions;

navigating through the history by means of a continuous user input device;

identifying and displaying an intermediary state of the history based on a position of the continuous user input device by;

translating the position of the continuous user input device to a value of an ascending/decreasing function of time

identifying a recorded event of a plurality of recorded events that occurred closer to the value of the ascending/decreasing function of time than any other recorded event of the plurality of recorded events;

determining the intermediary state corresponding to the value using an interpolation algorithm; and

displaying the determined intermediary state.

2. The method according to claim 1, wherein the plurality of recorded events are recorded together with the values of the ascending/decreasing function of time.

3. The method according to claim 2, wherein the ascending/decreasing function of time is time and the recorded values of the function are time values.

4. The method according to claim 3, wherein the values are time stamps of the events.

5. The method according to claim 3, wherein the values are time steps between the events.

6. The method according to claim 2, wherein the events are reversible user actions.

7. The method according to claim 2, wherein the events are intermediary states.

8. The method according to claim 1, wherein the acts of identifying and displaying are performed continuously.

9. A method for providing a continuous undo/redo mechanism comprising acts of:

recording a history based on continuously reversible user actions;

navigating through the history by means of a continuous user input device;

identifying and displaying an intermediary state of the history based on a position of the continuous user input device by;

translating the position of the continuous user input device to a value of an ascending/decreasing function of time determining an earlier and later event that is closer to the value of the ascending/decreasing function of time than any other recorded earlier and later event of the plurality of recorded events; and

identifying the intermediary state corresponding to the value using an interpolation algorithm; and

displaying the identified intermediary state.

10. A computer program comprising non-transitory computer program code for operating on a computer for performing a method when said program is run on a computer, the method comprising acts of:

recording a history based on continuously reversible user actions;

navigating through the history by means of a continuous user input device;

identifying and displaying an intermediary state of the history based on a position of the continuous user input device by;

translating the position of the continuous user input device to a value of an ascending/decreasing function of time

identifying a recorded event of a plurality of recorded events that occurred closer to the value of the ascending/decreasing function of time than any other recorded event of the plurality of recorded events;

determining the intermediary state corresponding to the value using an interpolation algorithm; and

displaying the determined intermediary state.

11. The computer program as claimed in claim 10 embodied on a computer readable medium.

12. A carrier medium carrying the computer program of claim 10.

13. The apparatus according to claim 12, wherein the apparatus is adapted for performing electro physiological procedures.

14. An apparatus for providing an undo/redo mechanism comprising:

a memory for recording a history based on continuously reversible user actions;

a continuous user input device for navigating through the history;

a processor configured to identify and display an intermediary state of the history based on a position of the continuous user input device by;

translating the position of the continuous user input device to a value of an ascending/decreasing function of time

identifying a recorded event of a plurality of recorded events that occurred closer to the value of the ascending/decreasing function of time than any other recorded event of the plurality of recorded events;

determining the intermediary state corresponding to the value using an interpolation algorithm; and

displaying the determined intermediary state.

15. The apparatus according to claim 14 being a medical apparatus.