Automatic text scrolling on a display device
First Claim
1. A head-mounted display device, comprising:
- a control circuit;
a microdisplay responsive to the control circuit, the microdisplay projects augmented reality images including text to an eye of a user; and
a sensor associated with the control circuit, the sensor tracks a gaze direction of the user, the control circuit, responsive to the sensor, controls the microdisplay to advance the text based on the gaze direction of the user, determines a reading speed of the user based on changes in the gaze direction of the user over time, the changes comprise saccades in which the gaze direction of the user moves along a line of the text and a return sweep saccade in which the gaze direction moves to a beginning of a next line of the text, and controls the microdisplay to advance the text based on the reading speed of the user.
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Accused Products
Abstract
A see-through head-mounted display (HMD) device, e.g., in the form of glasses, provides view an augmented reality image including text, such as in an electronic book or magazine, word processing document, email, karaoke, teleprompter or other public speaking assistance application. The presentation of text and/or graphics can be adjusted based on sensor inputs indicating a gaze direction, focal distance and/or biological metric of the user. A current state of the text can be bookmarked when the user looks away from the image and subsequently resumed from the bookmarked state. A forward facing camera can adjust the text if a real word object passes in front of it, or adjust the appearance of the text based on a color of pattern of a real world background object. In a public speaking or karaoke application, information can be displayed regarding a level of interest of the audience and names of audience members.
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Citations
17 Claims
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1. A head-mounted display device, comprising:
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a control circuit; a microdisplay responsive to the control circuit, the microdisplay projects augmented reality images including text to an eye of a user; and a sensor associated with the control circuit, the sensor tracks a gaze direction of the user, the control circuit, responsive to the sensor, controls the microdisplay to advance the text based on the gaze direction of the user, determines a reading speed of the user based on changes in the gaze direction of the user over time, the changes comprise saccades in which the gaze direction of the user moves along a line of the text and a return sweep saccade in which the gaze direction moves to a beginning of a next line of the text, and controls the microdisplay to advance the text based on the reading speed of the user. - View Dependent Claims (3, 4, 5, 6, 7, 8, 9, 10, 11)
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2. The head-mounted display device of claimed 1, wherein:
the control circuit controls the microdisplay to display auxiliary information related to at least one of a word, a set of words or a graphic element in the augmented reality images, when the control circuit determines, base on the gaze direction, that the user gazes at the at least one of the words, the set of words or the graphic element for a threshold amount of time.
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12. A head-mounted display device, comprising:
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a control circuit; a microdisplay responsive to the control circuit, the microdisplay projects augmented reality images including text to an eye of a user; and a sensor associated with the control circuit, the sensor tracks a gaze direction and a focal distance of the user, the control circuit, responsive to the sensor, controls the microdisplay to advance the text based on the gaze direction of the user, and provides a bookmark of a state of the text when the focal distance of the user changes from a focal distance which is consistent with a focal distance of the text, to a focal distance which is inconsistent with the focal distance of the text. - View Dependent Claims (13, 14)
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15. A head-mounted display device, comprising:
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a control circuit; a microdisplay responsive to the control circuit, the microdisplay projects augmented reality images including a graphic element to an eye of a user; and a sensor associated with the control circuit, the sensor tracks a gaze direction of the user, the control circuit, responsive to the sensor, controls the microdisplay to increase a size of the graphic element when the control circuit determines, based on the gaze direction, that the user gazes at the graphic element for a threshold amount of time. - View Dependent Claims (16, 17)
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Specification