Processing method for a device having a bi-stable display and apparatus

• US 8,581,836 B2
• Filed: 09/28/2011
• Issued: 11/12/2013
• Est. Priority Date: 10/15/2010
• Status: Active Grant

• Current Assignee: International Business Machines Corporation
• Original Assignee: International Business Machines Corporation
• Inventors: Bao, Sheng Hua, Chen, Jian, Jiang, Wei, Su, Zhong, Yang, Xin Ying
• Primary Examiner(s): Cheng, Joe H
• Application Number:
  US13/246,984
• Publication Number:
  US 20120092243A1
• Time in Patent Office: 776 Days
• Field of Search: 345/107, 345694-696, 345/698, 345/699, 358/3.11, 358/3.2, 707/705, 707/758
• US Class Current: 345/107
• CPC Class Codes: G06F 3/147 using display panels
• CPC Class Codes: G09G 2310/04 Partial updating of the display screen
• CPC Class Codes: G09G 2320/103 Detection of image changes, e.g. determination of an index representative of the image change
• CPC Class Codes: G09G 2330/021 Power management, e.g. power saving
• CPC Class Codes: G09G 2380/14 Electronic books and readers

Abstract

A processing method for a device having a bi-stable display includes transforming a target page to be turned to; calculating overlap between the transformed target page and a current page; and determining whether the overlap of the transformed page complies with a predetermined criterion.

Claims

1. A processing method for a device having a bi-stable display, the method comprising:

transforming a target page to be turned to;

calculating overlap between the transformed target page and a current page; and

determining whether the overlap of the transformed page complies with a predetermined criterion.

2. A method as recited in claim 1, wherein the predetermined criterion is related to one or more of:

overlap amount, display effect of the target page, and state of the device.

3. A method as recited in claim 1, wherein the transforming comprises performing affine transformation on the entire target page.

4. A method as recited in claim 1, wherein the transforming comprises performing affine transformation on a content item contained in the target page.

5. A method as recited in claim 4, where the content item comprises one or more of:

a text, a line, a paragraph, an image or a pre-defined portion.

6. A method as recited in claim 1, wherein the transforming comprises transforming typesetting of the target page.

7. A method as recited in claim 6, wherein the typesetting comprises one or more of alignment of text/picture, font, surrounding pattern of text/picture, line spacing, word spacing.

8. A method as recited in claim 1, wherein the transforming is performed in response to an instruction for turning to the target page.

9. A method as recited in claim 1, wherein the target page is predetermined.

10. A method as recited in claim 1, wherein the transforming is performed during display of the current page.

11. A method as recited in any of claim 1, wherein the target page includes a plurality of consecutive pages, and wherein the overlap complying with the predetermined criterion comprises:

a total overlap of the plurality of consecutive pages complying with the predetermined criterion.

12. A processing apparatus for a device having a bi-stable display, comprising:

a transforming module configured to transform a target page to be turned to;

a calculating module configured to calculate overlap between the transformed target page and a current page; and

a determining module configured to determine whether the overlap of the transformed page complies with a predetermined criterion.

13. An apparatus as recited in claim 12, wherein the predetermined criterion is related to one or more of:

overlap amount, display effect of the target page, and state of the device.

14. An apparatus as recited in claim 12, wherein the transforming module comprises a page transforming module configured to perform affine transformation on the entire target page.

15. An apparatus as recited in claim 12, wherein the transforming module comprises a content item transforming module for performing affine transformation on a content item contained in the target page.

16. An apparatus as recited in claim 15, where the content item comprises one or more of:

a text, a line, a paragraph, an image or a pre-defined portion.

17. An apparatus as recited in claim 12, wherein the content item transforming module is further configured to transform typesetting of the target page.

18. An apparatus as recited in claim 17, wherein the typesetting comprises one or more of:

alignment of text/picture, font, surrounding pattern of text/picture, line spacing, word spacing.

19. An apparatus as recited in claim 12, wherein the transforming module is for performing the transforming in response to an instruction for turning to the target page.

20. An apparatus as recited in claim 12, wherein the target page is predetermined.

21. An apparatus as recited in claim 12, wherein the transforming module is for performing the transforming during display of the current page.

22. An apparatus as recited in claim 12, wherein the target page includes a plurality of consecutive pages, and wherein the overlap complying with the predetermined criterion comprises:

a total overlap of the plurality of consecutive pages complying with the predetermined criterion.