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US6424355: Digital map display zooming method, digital map display zooming device, and storage medium for storing digital map display zooming program

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Filing Information

Inventor(s) Ryuichi Watanabe · Masafumi Minami ·
Assignee(s) Sony Corporation ·
Attorney/Agent(s) Oblon, Spivak, McClelland, Maier & Neustadt, P.C. ·
Primary Examiner Chanh Nguyen ·
Assistant Examiner Fritz Alphonse ·
Application Number US9088235
Filing date 06/01/1998
Issue date 07/23/2002
Predicted expiration date 06/01/2018
U.S. Classifications 345/668  · 163/671  · 163/670  ·
International Classifications --
Kind CodeB1
International Classifications 340995 · 340990 · 345668 · 345667 · 345670 · 345671 · 345163 · 345180 · 345440 ·
Foreign Priority JP9144274 - 06/02/1997 ·
11 Claims, 10 Drawings


Abstract

In a digital map display zooming method for enlarging and reducing a displayed portion of a digital map as map information in digital form within a display screen, continuous enlarging operation and continuous reducing operation of the displayed portion of the digital map within the display screen are designated by operating the first designating part and the second designating part of a pointing device, respectively.

Independent Claims | See all claims (11)

  1. 1. In a digital map display zooming method for enlarging and reducing a displayed portion of a digital map as map information in digital form within a display screen of a display device with a pointing means, an improvement wherein operations of a first designating part and a second designating part of said pointing means designate continuously enlarging operation and continuously reducing operation of said displayed portion of said digital map within said display screen, respectively.
  2. 3. A digital map display zooming device for enlarging and reducing a displayed portion of a digital map as map information in digital form within a display screen, said device comprising: display means having a display screen for displaying said displayed portion of said digital map; pointing means, having a first designating part and a second designating part, for carrying out continuously enlarging operation and continuously reducing operation of said displayed portion of said digital map within said display screen by operating said first designating part and said second designating part, respectively; and arithmetic processing means for carrying out processing for performing continuously enlarging operation and continuously reducing operation of a displayed portion designated by operating said pointing means.
  3. 5. A storage medium for storing a digital map display zooming program for enlarging and reducing a displayed portion of a digital map as map information in digital form within a display screen of a display device with a pointing means, the improvement wherein said digital map display zooming program includes the steps of designating continuously enlarging operation and continuously reducing operation of said displayed portion of said digital map within said display screen by operations of a first designating part and a second designating part of said pointing means, respectively.
  4. 6. A digital map display zooming device for enlarging and reducing a displayed portion of a digital map as map information in digital form within a display screen, said device comprising: a display having a display screen for displaying said displayed portion of said digital map; a mouse having a first designating part and a second designating part, for carrying out continuously enlarging operation and continuously reducing operation of said displayed portion of said digital map within said display screen by operating said first designating part and said second designating part, respectively; and a processor for carrying out processing for performing continuously enlarging operation and continuously reducing operation of a displayed portion designated by operating said mouse.
  5. 8. A storage medium for storing a digital map display zooming program for enlarging and reducing a displayed portion of a digital map as map information in digital form within a display screen of a display device with a mouse, the improvement wherein said digital map display zooming program includes the steps of designating continuously enlarging operation and continuously reducing operation of said displayed portion of said digital map within said display screen by operations of a first designating part and a second designating part of said mouse, respectively.
  6. 9. An apparatus for enlarging and reducing a displayed portion of an object image, comprising: memory means storing a plurality of the object image data having different scale ratios; display means having a display screen for displaying said displayed portion of the object image; pointing means for accepting a user operation to specify a location or an area to be enlarged or reduced; a first designating part and a second designating part for carrying out continuously enlarging operation and continuously reducing operation of said displayed portion of the object data based on the user operation applied on said first designating part and said second designating part, respectively; and arithmetic processing means for carrying out processing for said enlarging operation and said reducing operation of said displayed portion of the object data within said display screen with said scale ratio set by a scale setting means.
  7. 10. A method for enlarging and reducing a displayed portion of an object image, comprising the following steps: a step of storing a plurality of the object image data having different scale ratios in a memory means; a step of displaying said displayed portion of the object image on a display screen of a display means; a step of accepting a user operation to specify a location or an area to be enlarged or reduced by a pointing means; a step of carrying out a continuously enlarging operation or a continuously reducing operation of said displayed portion of the object data based on said user operation applied on a first designating part or a second designating part, respectively, of said pointing means; and a step of carrying out processing for said enlarging operation or said reducing operation of said displayed portion of the object data within said display screen with said scale ratio set by a scale setting means by an arithmetic processing means.
  8. 11. Computer program operable to enlarge and reduce a displayed portion of an object image, wherein: the program utilizes a memory means to store a plurality of object image data having different scale ratios; the program utilizes a display means having a display screen to display said displayed portion of the object image; the program utilizes a pointing means to accept a user operation to specify a location or an area to be enlarged or reduced; the program utilizes a first designating part and a second designating part to carry out continuously enlarging operation and continuously reducing operation of said displayed portion of the object data based on the user operation applied on said first designating part and said second designating part, respectively; and the program utilizes an arithmetic processing means to carry out processing for said enlarging operation and said reducing operation of said displayed portion of the object data within said display screen with said scale ratio set by a scale setting means.

References Cited

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Foreign Patent Documents

Document NumberAssigneesInventorsIssue/Pub Date
DE29621338PRIMAX ELECTRONICS LTDFeb 1997
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Other Publications

Rink, J., “Von A Nach B Mit CD,” CT Magazin Für Computer Technik, Feb. 1997, pp. 176-197, XP002131801.
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Patent Family

Document NumberAssigneeInventorsIssue/Pub Date
CN1201184 SONY CORP TAKAICHI WATANABE et al. Dec 1998
TW426831 SONY CORP WATANABE RYUICHI et al. Mar 2001
US20010003453 MASAFUMI MINAMI et al. Jun 2001
US6424355 Sony Corporation Ryuichi Watanabe et al. Jul 2002
JP3975472 Sep 2007
EP0883055 Sony Corporation Ryuichi Watanabe et al. Jul 2009