JP7471262B2 - Crown Input for Wearable Electronics - Google Patents

Description

CROSS-REFERENCE TO RELATED APPLICATIONS

This application is a continuation of U.S. Provisional Patent Application No. 61/873,356, filed September 3, 2013, entitled "CROWN INPUT FOR A WEARABLE ELECTRONIC DEVICE," U.S. Provisional Patent Application No. 61/873,359, filed September 3, 2013, entitled "USER INTERFACE OBJECT MANIPULATIONS IN A USER INTERFACE," U.S. Provisional Patent Application No. 61/959,851, filed September 3, 2013, entitled "USER INTERFACE FOR MANIPULATING USER INTERFACE OBJECTS," and U.S. Provisional Patent Application No. 61/103,363, filed September 3, 2013, entitled "USER INTERFACE FOR MANIPULATING USER INTERFACE OBJECTS." This application claims priority to U.S. Provisional Patent Application No. 61/873,360, entitled "USER INTERFACE FOR MANIPULATING USER INTERFACE OBJECTS WITH MAGNETIC PROPERTIES," and to U.S. Nonprovisional Patent Application No. 14/476,657, entitled "USER INTERFACE FOR MANIPULATING USER INTERFACE OBJECTS WITH MAGNETIC PROPERTIES," filed September 3, 2014, the contents of which are incorporated herein by reference in their entirety for all purposes.

This application is related to co-pending U.S. non-provisional patent application entitled "USER INTERFACE OBJECT MANIPULATIONS IN A USER INTERFACE," filed on September 3, 2014, by Nicholas Zambetti et al., as inventors, and to U.S. non-provisional patent application entitled "USER INTERFACE FOR MANIPULATING USER INTERFACE OBJECTS," filed on September 3, 2014, by Nicholas Zambetti et al., as inventors, which is also hereby incorporated by reference. This application is also related to U.S. Provisional Patent Application No. 61/747,278, filed December 29, 2012, entitled "Device, Method, and Graphical User Interface for Manipulating User Interface Objects with Visual and/or Haptic Feedback," the contents of which are incorporated by reference herein in their entirety for all purposes.

The following disclosure relates generally to wearable electronic devices and, more particularly, to interfaces for wearable electronic devices.

Advanced personal electronic devices can have small form factors. These personal electronic devices can include, but are not limited to, tablets and smartphones. Use of such personal electronic devices involves the manipulation of user interface objects on a display screen that also has a small form factor to complement the design of the personal electronic device.

Exemplary operations that a user may perform on a personal electronic device may include navigating a hierarchy, selecting a user interface object, adjusting the position, size, and zoom of a user interface object, or otherwise manipulating the user interface. Exemplary user interface objects include digital images, video, text, icons, maps, control elements such as buttons, and other graphics. A user may perform such operations within software execution platforms such as image management software, video editing software, word processing software, operating system desktops, website browsing software, and other environments.

Existing methods for manipulating user interface objects on touch-sensitive displays of reduced size can be inefficient. Moreover, existing methods generally do not provide as much accuracy as would be desirable.

The present disclosure relates to using a mechanical crown to operate a user interface on a wearable electronic device. In some examples, the user interface may scroll or scale in response to a rotation of the crown. The direction of the scrolling or scaling and the amount of scrolling or scaling may depend on the direction and amount of the crown rotation, respectively. In some examples, the amount of scrolling or scaling may be proportional to the change in the rotation angle of the crown. In other examples, the scrolling or scaling rate may depend on the angular rotation rate of the crown. In these examples, a greater rotation rate may cause a greater scrolling or scaling rate to be performed on the displayed view.

1 illustrates an exemplary wearable electronic device in accordance with various examples.

FIG. 1 illustrates a block diagram of an exemplary wearable electronic device, in accordance with various examples.

1 illustrates an example process for scrolling through an application using the crown, according to various examples.

4 shows a screen illustrating the scrolling of an application using the process of FIG. 3; 4 shows a screen illustrating the scrolling of an application using the process of FIG. 3; 4 shows a screen illustrating the scrolling of an application using the process of FIG. 3; 4 shows a screen illustrating the scrolling of an application using the process of FIG. 3; 4 shows a screen illustrating the scrolling of an application using the process of FIG. 3;

1 illustrates an example process for scrolling a view of a display using a crown, according to various examples.

10 shows a screen showing scrolling of a view of a display using the process of FIG. 9; 10 shows a screen showing scrolling of a view of a display using the process of FIG. 9; 10 shows a screen showing scrolling of a view of a display using the process of FIG. 9; 10 shows a screen showing scrolling of a view of a display using the process of FIG. 9; 10 shows a screen showing scrolling of a view of a display using the process of FIG. 9;

1 illustrates an example process for scaling a view of a display using a crown, according to various examples.

16 is a screen shot illustrating the scaling of a view of a display using the process of FIG. 15. 16 is a screen shot illustrating the scaling of a view of a display using the process of FIG. 15. 16 is a screen shot illustrating the scaling of a view of a display using the process of FIG. 15. 16 is a screen shot illustrating the scaling of a view of a display using the process of FIG. 15. 16 is a screen shot illustrating the scaling of a view of a display using the process of FIG. 15.

1 illustrates an exemplary process for scrolling a view of a display based on the angular rotation rate of the crown, according to various examples.

22 shows a screen showing scrolling of a view of a display using the process of FIG. 21 . 22 shows a screen showing scrolling of a view of a display using the process of FIG. 21 . 22 shows a screen showing scrolling of a view of a display using the process of FIG. 21 . 22 shows a screen showing scrolling of a view of a display using the process of FIG. 21 . 22 shows a screen showing scrolling of a view of a display using the process of FIG. 21 . 22 shows a screen showing scrolling of a view of a display using the process of FIG. 21 . 22 shows a screen shot illustrating scrolling of a view of a display using the process of FIG. 21. 22 shows a screen showing scrolling of a view of a display using the process of FIG. 21 . 22 shows a screen showing scrolling of a view of a display using the process of FIG. 21 . 22 shows a screen showing scrolling of a view of a display using the process of FIG. 21 . 22 shows a screen showing scrolling of a view of a display using the process of FIG. 21 . 22 shows a screen showing scrolling of a view of a display using the process of FIG. 21 . 22 shows a screen shot illustrating scrolling of a view of a display using the process of FIG. 21. 22 shows a screen shot illustrating scrolling of a view of a display using the process of FIG. 21. 22 shows a screen shot illustrating scrolling of a view of a display using the process of FIG. 21. 22 shows a screen shot illustrating scrolling of a view of a display using the process of FIG. 21. 22 shows a screen shot illustrating scrolling of a view of a display using the process of FIG. 21. 22 shows a screen showing scrolling of a view of a display using the process of FIG. 21 . 22 shows a screen showing scrolling of a view of a display using the process of FIG. 21 .

1 illustrates an exemplary process for scaling a view of a display based on the angular rotation rate of a crown, according to various examples.

42 shows a screen shot illustrating the scaling of a view of a display using the process of FIG. 41 . 42 shows a screen shot illustrating the scaling of a view of a display using the process of FIG. 41 . 42 shows a screen shot illustrating the scaling of a view of a display using the process of FIG. 41 .

1 illustrates an exemplary computing system for changing a user interface in response to a crown rotation, in accordance with various examples.

In the following description of the disclosure and examples, reference is made to the accompanying drawings, in which specific examples that may be practiced are shown by way of illustration. It is to be understood that other examples may be practiced and structural changes may be made without departing from the scope of the present disclosure.

The present disclosure relates to using a mechanical crown to operate a user interface on a wearable electronic device. In some examples, the user interface may scroll or scale in response to a rotation of the crown. The direction of the scrolling or scaling and the amount of scrolling or scaling may depend on the direction and amount of the crown rotation, respectively. In some examples, the amount of scrolling or scaling may be proportional to the change in the rotation angle of the crown. In other examples, the scrolling or scaling rate may depend on the angular rotation rate of the crown. In these examples, a greater rotation rate may cause a greater scrolling or scaling rate to be performed on the displayed view.

FIG. 1 illustrates an exemplary personal electronic device 100. In the illustrated example, device 100 is a wristwatch that typically includes a body 102 and a strap 104 for attaching device 100 to a user's body. That is, device 100 is wearable. Body 102 may be designed to mate with strap 104. Device 100 may have a touch-sensitive display screen (hereafter touch screen) 106 and a crown 108. Device 100 may also have buttons 110, 112, and 114.

Conventionally, the term "crown" in the context of a watch refers to a cap on a stem for winding the watch. In the context of a personal electronic device, the crown can be a physical component of the electronic device, rather than a virtual crown on a touch-sensitive display. The crown 108 can be mechanical; that is, it can be connected to a sensor for converting the physical movement of the crown into an electrical signal. The crown 108 can rotate in two rotational directions (e.g., forward and backward). The crown 108 can also be pushed toward and/or pulled away from the body of the device 100. The crown 108 can be touch-sensitive, for example, using capacitive touch technology that can detect whether the user is touching the crown. Furthermore, the crown 108 can also be swung in one or more directions, or translated along a track along an edge, or at least partially around the circumference of the body 102. In some examples, more than one crown 108 can be used. The visual appearance of crown 108 may, but need not, resemble that of a conventional watch crown. Buttons 110, 112, and 114, if included, may each be a physical button or a touch-sensitive button. That is, the buttons may be, for example, physical buttons or capacitive buttons. Additionally, body 102, which may include a bezel, may have predetermined areas on the bezel that act as buttons.

The display 106 may include a display device, such as a liquid crystal display (LCD), light-emitting diode (LED) display, organic light-emitting diode (OLED) display, or the like, positioned partially or completely behind or in front of a touch sensor panel implemented with any desired touch sensing technology, such as mutual capacitance touch sensing, self-capacitance touch sensing, resistive touch sensing, projected scanning touch sensing, or the like. The display 106 may enable a user to perform various functions by hovering near and touching on the touch sensor panel with one or more fingers or other objects.

In some examples, the device 100 may further include one or more pressure sensors (not shown) for detecting the amount of force or pressure applied to the display. The amount of force or pressure applied to the display 106 may be used as an input to the device 100 to perform any desired action, such as making a selection, entering or exiting a menu, causing the display of additional options/actions, or the like. In some examples, different actions may be performed based on the amount of force or pressure being applied to the display 106. The one or more pressure sensors may further be used to determine the location at which the force is being applied to the display 106.

FIG. 2 illustrates a block diagram of some of the components of the device 100. As shown, the crown 108 can be coupled to an encoder 204. The encoder 204 can be configured to monitor the physical state, or change in physical state, of the crown 108 (e.g., the position of the crown), convert it into an electrical signal (e.g., convert it into an analog or digital signal representation of the position, or change in position, of the crown 108), and provide the signal to the processor 202. For example, in some examples, the encoder 204 can be configured to sense the absolute rotational position (e.g., an angle between 0 and 360°) of the crown 108 and output an analog or digital representation of this position to the processor 202. Alternatively, in other examples, the encoder 204 can be configured to sense a change in the rotational position (e.g., a change in the angle of rotation) of the crown 108 over some sampling period and output an analog or digital representation of the sensed change to the processor 202. In these examples, the crown position information can further indicate the direction of rotation of the crown (e.g., a positive value can correspond to one direction and a negative value can correspond to the other). In yet another example, the encoder 204 can be configured to detect the rotation of the crown 108 in any desired manner (e.g., velocity, acceleration, or the like) and can provide the crown rotation information to the processor 202. The rotation rate can be expressed in a number of ways. For example, the rotation rate can be expressed in terms of the direction and speed of rotation, such as Hertz, rotations per unit time, rotations per frame, rotations per unit time, rotations per frame, change in angle per unit time, and the like. In an alternative example, instead of providing the information to the processor 202, the information can be provided to other components of the device 100. Although the examples described herein refer to utilizing the rotational position of the crown 108 to control scrolling or scaling of a view, it should be understood that any other physical state of the crown 108 can be used.

In some examples, the physical state of the crown can control physical attributes of the display 106. For example, the z-axis traversal capability of the display 106 can be limited when the crown 108 is in a particular position (e.g., rotated forward). In other words, the physical state of the crown can represent the physical mode functionality of the display 106. In some examples, a time attribute of the physical state of the crown 108 can be used as an input to the device 100. For example, a fast change in the physical state can be interpreted differently than a slow change in the physical state.

The processor 202 may further be coupled to receive input signals from the buttons 110, 112, and 114, as well as touch signals from the touch-sensitive display 106. The processor 202 may be configured to interpret these input signals and output appropriate display signals to cause an image to be generated by the touch-sensitive display 106. Although a single processor 202 is shown, it should be understood that any number of processors or other computing devices may be used to perform the general functions described above.

FIG. 3 illustrates an exemplary process 300 for scrolling through a set of displayed applications using the crown, according to various examples. In some examples, the process 300 can be performed by a wearable electronic device similar to the device 100. In these examples, visual representations (e.g., icons, graphical images, text images, and the like) of one or more applications of the set of applications can be displayed on the display 106 of the device 100, and the process 300 can be performed to visually scroll through the set of applications by sequentially displaying the applications in response to rotation of the crown 108. In some examples, the scrolling can be performed by translating the displayed content along a fixed axis.

At block 302, crown position information can be received. In some examples, the crown position information can include an analog or digital representation of an absolute position of the crown, such as an angle between 0 and 360 degrees. In other examples, the crown position information can include an analog or digital representation of a change in the rotational position of the crown, such as a change in the angle of rotation. For example, an encoder similar to encoder 204 can be coupled to a crown similar to crown 108 to monitor and measure its position. The encoder can convert the position of crown 108 into crown position information that can be transmitted to a processor similar to processor 202.

In block 304, it may be determined whether a change in position has been detected. In some examples, if the crown position information includes an absolute position of the crown, determining whether a change in position has occurred may be performed by comparing the positions of the crown at two different time instances. For example, a processor (e.g., processor 202) may compare the most recent position of the crown (e.g., crown 108) as indicated by the crown position information with the previous (e.g., immediately preceding) position of the crown as indicated by previously received crown position information. If the positions are the same or within a threshold (e.g., a value corresponding to an encoder tolerance), it may be determined that a change in position has not occurred. However, if the positions are not the same or differ by at least a threshold, it may be determined that a change in position has occurred. In other examples, if the crown position information includes a change in position over some length of time, determining whether a change in position has occurred may be performed by determining whether the absolute value of the change in position is equal to 0 or is less than a threshold (e.g., a value corresponding to an encoder tolerance). If the absolute value of the change in position is equal to 0 or is less than a threshold, it may be determined that a change in position has not occurred. However, if the absolute value of the position change is 0 or greater than a threshold, it can be determined that a position change has occurred.

If, at block 304, it is determined that a change in the position of the crown has not been detected, the process may return to block 302 where new crown position information may be received. However, if, instead, at block 304, it is determined that a change in the position of the crown has been detected, the process may proceed to block 306. As described herein, a positive determination at block 304 may cause the process to proceed to block 306, while a negative determination may cause the process to return to block 302. However, it should be understood that the determination made at block 304 may be reversed such that a positive determination may cause the process to return to block 302, while a negative determination may cause the process to proceed to block 306. For example, block 304 may alternatively determine whether a change in position has not been detected.

At block 306, at least a portion of the set of applications can be scrolled based on the detected change in position. The set of applications can include any ordered or unordered set of applications. For example, the set of applications can include all applications stored on the wearable electronic device, all open applications on the wearable electronic device, a user-selected set of applications, or the like. Additionally, the applications can be ordered based on frequency of use, a user-defined ordering, relevance, or any other desired ordering.

In some examples, block 306 may include visually scrolling the set of applications by sequentially displaying the applications in response to a detected change in the position of the crown. For example, a display (e.g., display 106) may be displaying one or more applications of the set of applications. In response to detecting a change in the position of the crown (e.g., crown 108), one or more of the currently displayed applications may be translated out of the display to make room for one or more other applications to be translated onto the display. In some examples, the one or more other applications to be translated onto the display may be selected for display based on their relative ordering within the set of applications that corresponds to a direction opposite to the direction of translation. The direction of translation may depend on the direction of the change in the position of the crown. For example, rotating the crown clockwise may cause the display to scroll in one direction, while rotating the crown counterclockwise may cause the display to scroll in a second (e.g., opposite) direction. Additionally, the distance or speed of scrolling may depend on the amount of the detected change in the position of the crown. The distance of scrolling may refer to the distance on the screen that content is scrolled. The speed of scrolling may refer to the distance that content is scrolled over a length of time. In some examples, the distance or speed of scrolling may be proportional to the amount of rotation detected. For example, the amount of scrolling corresponding to one-half rotation of the crown may be equal to 50% of the amount of scrolling corresponding to one rotation of the crown. In some examples where the set of applications includes an ordered list of applications, scrolling may stop in response to reaching the end of the list. In other examples, scrolling may continue by looping around to the opposite end of the list of applications. The process may then return to block 302, where new crown position information may be received.

It should be appreciated that the actual values used to linearly map the change in crown position to the scrolling distance or speed can be varied depending on the desired functionality of the device. Additionally, it should be appreciated that other mappings between the scroll amount or speed and the change in crown position can be used. For example, acceleration, velocity (described in more detail below with respect to Figures 21-44), or the like, can be used to determine the scrolling distance or speed. Additionally, non-linear mappings between crown characteristics (e.g., position, velocity, acceleration, etc.) and the scroll amount or scroll speed can be used.

To further illustrate the operation of process 300, FIG. 4 shows an exemplary interface of device 100 having a visual representation (e.g., an icon, a graphical image, a text image, and the like) of application 406 and portions of visual representations of applications 404 and 408. Applications 404, 406, and 408 can be part of a set of applications including any number of ordered applications or any group of unordered applications (e.g., all applications on device 100, all open applications on device 100, user favorites, or the like). At block 302 of process 300, processor 202 of device 100 can receive crown position information from encoder 204. Because crown 108 has not been rotated in FIG. 4, a negative determination can be made by processor 202 at block 304, causing the process to return to block 302.

5, the crown 108 is rotated upward as indicated by a rotation direction 502. The processor 202 may again receive crown position information reflecting this rotation from the encoder 204 at block 302 of the process 300. Thus, the processor 202 may make a positive determination at block 304, which causes the process to proceed to block 306. At block 306, the processor 202 may cause the display 106 to scroll at least a portion of the set of applications on the device 100. The scrolling may have a scroll direction 504 corresponding to the rotation direction 502 of the crown 108, as well as a scroll amount or speed based on a characteristic of the rotation of the crown 108 (e.g., distance, velocity, acceleration, or the like). In the illustrated example, the scroll distance may be proportional to the amount of rotation of the crown 108. As shown, the display 106 may scroll the set of applications by translating a visual representation of the applications in the scroll direction 504. As a result, application 408 is completely pushed off display 106, application 406 is partially pushed off display 106, and application 404 is displayed to a greater extent on display 106. As the user continues to rotate crown 108 in rotation direction 502, processor 202 can continue to cause display 106 to scroll a view of the set of applications in scroll direction 504, as shown in FIG. 6, where application 406 is just barely visible on the right side of display 106, application 404 is centered within display 106, and newly displayed application 402 is displayed on the left side of display 106. In this example, application 402 can be another application in the set of applications and can have an ordered position to the left or before application 404. In some examples, if application 402 is the first application in a list of applications and the user continues to rotate crown 108 in rotation direction 502, processor 202 can limit scrolling of display 106 to stop scrolling when application 402 is centered within the display. Alternatively, in another example, the processor 202 may continue scrolling the display 106 by looping to the end of the set of applications, causing the last application in the set of applications (e.g., application 408) to be displayed to the left of application 402.

7, the crown 108 is rotated in a downward rotation direction 506. The processor 202 may again receive crown position information reflecting this rotation from the encoder 204 at block 302 of the process 300. Thus, the processor 202 may make a positive determination at block 304, which causes the process to proceed to block 306. At block 306, the processor 202 may cause the display 106 to scroll the view of the application in a scroll direction 508 corresponding to the rotation direction 506. In this example, the scroll direction 508 is opposite the scroll direction 504. However, it should be understood that the scroll direction 508 may be any desired direction. Similar to the scrolling performed in response to the rotation of the crown 108 in the rotation direction 502, the scrolling performed in response to the rotation of the crown 108 in the rotation direction 506 may depend on the characteristics of the rotation of the crown 108 (e.g., distance, speed, acceleration, or the like). In the illustrated example, the scroll distance may be proportional to the amount of rotation of the crown 108. As shown, the display 106 can scroll the set of applications by translating the visual representations of the applications in the scroll direction 508. As a result, application 402 is completely pushed off the display 106, application 404 is partially pushed off the display 106, and application 406 is displayed in a larger portion on the display 106. As the user continues to rotate the crown 108 in the rotation direction 506, the processor 202 can continue to cause the display 106 to scroll the view of the set of applications in the scroll direction 508, as shown in Figure 8, where application 404 is just barely visible on the left side of the display 106, application 406 is centered within the display 106, and application 408 is again displayed on the right side of the display 106. In some examples, if application 408 is the last application in the list of applications and the user continues to rotate the crown 108 in the rotation direction 508, the processor 202 can limit the scrolling of the display 106 to stop scrolling when application 408 is centered within the display. Alternatively, in another example, the processor 202 may continue scrolling the display 106 by looping to the beginning of the set of applications, causing the first application in the set of applications (e.g., application 402) to be displayed to the right of application 408.

Although a specific scrolling example is provided, it should be understood that the mechanical crown of the wearable electronic device can be used in a similar manner to scroll other views of an application as well. In addition, the scrolling distance or speed can be configured to depend on any characteristic of the crown.

9 illustrates an exemplary process 900 for scrolling a view of a display using a crown, according to various examples. A view can include a visual representation of any type of data being displayed. For example, a view can include a display of text, media items, web pages, maps, or the like. Process 900 can be similar to process 300, except that process 900 can be more generally applicable to any type of content or view displayed on a display of a device. In some examples, process 900 can be performed by a wearable electronic device similar to device 100. In these examples, content or any other view can be displayed on display 106 of device 100, and process 900 can be performed to visually scroll the view in response to rotation of crown 108. In some examples, scrolling can be performed by translating the displayed content along a fixed axis.

At block 902, crown position information may be received in a manner similar or identical to that described above with respect to block 302. For example, the crown position information may be received by a processor (e.g., processor 202) from an encoder (e.g., encoder 204) and may include an analog or digital representation of the absolute position of the crown, the change in rotational position of the crown, or other position information of the crown.

At block 904, it may be determined whether a change in position has been detected in a manner similar or identical to that described above with respect to block 304. For example, block 904 may include comparing the position of the crown at two different time instances, or may include determining whether the absolute value of the change in crown position is equal to zero or below a threshold. If a change in position has not been detected, the process may return to block 902. Alternatively, if a change in position has been detected, the process may proceed to block 906. As described herein, a positive determination at block 904 may cause the process to proceed to block 906, while a negative determination may cause the process to return to block 902. However, it should be understood that the determination performed at block 904 may be reversed, such that a positive determination may cause the process to return to block 902, while a negative determination may cause the process to proceed to block 906. For example, block 904 may alternatively determine whether a change in position has not been detected.

At block 906, a view of the display may be scrolled based on the detected change in position. Similar to block 306 of process 300, block 906 may include visually scrolling the view by translating the view of the display in response to a detected change in the position of the crown. For example, a display (e.g., display 106) may be displaying a portion of some content. In response to detecting a change in the position of the crown (e.g., crown 108), the currently displayed portion of the content may be translated out of the display to make room for another portion of the content that was not previously displayed. The direction of the translation may depend on the direction of the change in the position of the crown. For example, rotating the crown clockwise may cause the display to scroll in one direction, while rotating the crown counterclockwise may cause the display to scroll in a second (e.g., opposite) direction. Additionally, the distance or speed of the scrolling may depend on the amount of the detected change in the position of the crown. In some examples, the distance or speed of the scrolling may be proportional to the amount of the detected rotation. For example, the amount of scrolling corresponding to one-half rotation of the crown can be equal to 50% of the amount of scrolling corresponding to one rotation of the crown. The process can then return to block 902, where new crown position information can be received.

It should be appreciated that the actual values used to linearly map the change in crown position to the scrolling distance or speed can be varied depending on the desired functionality of the device. Additionally, it should be appreciated that other mappings between the amount of scrolling and the change in position can be used. For example, acceleration, velocity (described in more detail below with respect to FIGS. 21-44), or the like, can be used to determine the scrolling distance or speed. Additionally, non-linear mappings between crown characteristics (e.g., position, velocity, acceleration, etc.) and the amount of scrolling or scrolling speed can be used.

To further illustrate the operation of process 900, FIG. 10 illustrates an example interface of device 100 having a visual representation of a line of text containing the numbers 1-9. At block 902 of process 900, processor 202 of device 100 may receive crown position information from encoder 204. Because crown 108 has not been rotated in FIG. 10, a negative determination may be made by processor 202 at block 904, causing the process to return to block 902.

11, the crown 108 is rotated in an upward rotation direction 1102. The processor 202 may again receive crown position information reflecting this rotation from the encoder 204 at block 902 of the process 900. Thus, the processor 202 may make a positive determination at block 904, which causes the process to proceed to block 906. At block 906, the processor 202 may cause the display 106 to scroll the lines of text displayed on the display 106. The scrolling may have a scroll direction 1104 corresponding to the direction of rotation 1102 of the crown 108, as well as a scroll amount or speed based on a characteristic of the rotation of the crown 108 (e.g., distance, velocity, acceleration, or the like). In the illustrated example, the scroll distance may be proportional to the amount of rotation of the crown 108. As shown, the display 106 may scroll the lines of text by translating the text in the scroll direction 1104. As a result, a portion of line 1002 is pushed off the display 106, while a portion of line 1004 is newly displayed on the bottom of the display 106. The lines of text between lines 1002 and 1004 have been similarly translated in the scroll direction 1104. As the user continues to rotate the crown 108 in the rotation direction 1102, the processor 202 can continue to cause the display 106 to scroll the lines of text in the scroll direction 1104, as shown in Figure 12, where line 1002 is no longer visible in the display 106 and line 1004 is now completely within view of the display 106. In some examples, if line 1004 is the last line of text and the user continues to rotate the crown 108 in the rotation direction 1102, the processor 202 can limit the scrolling of the display 106 to stop scrolling when line 1004 is completely displayed within the display 106. In another example, the processor 202 may continue scrolling the display 106 by looping to the beginning of the lines of text, causing the first line of text (e.g., line 1002) to appear below line 1004. In yet another example, a rubber banding effect may be performed by displaying white space below line 1004, and flipping the lines of text in response to the crown 108 stopping rotation, flushing line 1004 with the bottom of the display 106. It should be appreciated that the action taken in response to reaching the end of the content displayed in the display 106 may be selected based on the type of data being displayed.

13, the crown 108 is rotated in a downward rotation direction 1106. The processor 202 may again receive crown position information reflecting this rotation from the encoder 204 at block 902 of the process 900. Thus, the processor 202 may make a positive determination at block 904, which causes the process to proceed to block 906. At block 906, the processor 202 may cause the display 106 to scroll the lines of text in a scroll direction 1108 corresponding to the rotation direction 1106. In this example, the scroll direction 1108 is opposite the scroll direction 1104. However, it should be understood that the scroll direction 1108 may be any desired direction. Similar to the scrolling performed in response to the rotation of the crown 108 in the rotation direction 1102, the scrolling performed in response to the rotation of the crown 108 in the rotation direction 1106 may depend on the characteristics of the rotation of the crown 108 (e.g., distance, speed, acceleration, or the like). In the illustrated example, the scrolling distance may be proportional to the amount of rotation of the crown 108. As shown, the display 106 may scroll the lines of text by translating the lines of text in a scrolling direction 1108. As a result, a portion of line 1004 may be pushed off the display 106 while a portion of line 1002 may be redisplayed at the top of the display 106. As the user continues to rotate the crown 108 in the rotation direction 1106, the processor 202 may continue to cause the display 106 to scroll the lines of text in the scrolling direction 1108, as shown in FIG. 14. As shown in FIG. 14, line 1004 has been translated off the display 106 while line 1002 is now fully visible. In some examples, if line 1002 is the first line of text and the user continues to rotate crown 108 in rotation direction 1106, processor 202 may limit scrolling of display 106 to stop scrolling when line 1002 reaches the top of display 106. In other examples, processor 202 may continue scrolling display 106 by looping to the end of the line of text, causing the last line of text (e.g., line 1004) to appear above line 1002. In yet other examples, a rubberbanding effect may be performed by displaying white space above line 1002 and flipping the line of text in response to the crown 108 stopping rotation to align line 1002 to the top of display 106. It should be appreciated that the action taken in response to reaching the end of the content displayed in display 106 may be selected based on the type of data being displayed.

Although a specific scrolling example is provided, it should be understood that the mechanical crown of the wearable electronic device can be used in a similar manner to similarly scroll other types of data, such as media items, web pages, or the like. Additionally, the scrolling distance or speed can be configured to depend on any characteristic of the crown.

15 illustrates an exemplary process 1500 for scaling a view of a display (e.g., zooming in or out) using a crown, according to various examples. A view can include a visual representation of any type of data being displayed. For example, a view can include a display of text, media items, web pages, maps, or the like. Process 1500 can be similar to processes 300 and 900, except that instead of scrolling between applications or scrolling a view of the device, the view can be scaled positively or negatively in response to a rotation of the crown. In some examples, process 1500 can be performed by a wearable electronic device similar to device 100. In these examples, content or any other view can be displayed on display 106 of device 100, and process 1500 can be performed to visually scale the view in response to a rotation of crown 108.

At block 1502, crown position information may be received in a manner similar or identical to that described above with respect to blocks 302 or 902. For example, the crown position information may be received by a processor (e.g., processor 202) from an encoder (e.g., encoder 204) and may include an analog or digital representation of the absolute position of the crown, the change in rotational position of the crown, or other position information of the crown.

At block 1504, it may be determined whether a change in position has been detected in a manner similar or identical to that described above with respect to blocks 304 or 904. For example, block 1504 may include comparing the position of the crown at two different time instances, or may include determining whether the absolute value of the change in crown position is equal to zero or below a threshold. If a change in position has not been detected, the process may return to block 1502. Alternatively, if a change in position has been detected, the process may proceed to block 1506. As described herein, a positive determination at block 1504 may cause the process to proceed to block 1506, while a negative determination may cause the process to return to block 1502. However, it should be understood that the determination performed at block 1504 may be reversed, such that a positive determination may cause the process to return to block 1502, while a negative determination may cause the process to proceed to block 1506. For example, block 1504 may alternatively determine whether a change in position has not been detected.

At block 1506, a view of the display may be scaled based on the detected change in position. Block 1506 may include visually scaling the view (e.g., zooming in/out) in response to a detected change in the position of the crown. For example, a display (e.g., display 106) may be displaying a portion of some content. In response to detecting a change in the position of the crown (e.g., crown 108), the view may be scaled by increasing or decreasing the size of the currently displayed portion of the content in the view depending on the direction of the change in the position of the crown. For example, rotating the crown clockwise may increase the size of the content in the view of the display (e.g., zooming in), while rotating the crown counterclockwise may decrease the size of the content in the view of the display (e.g., zooming out). In addition, the amount or speed of the scaling may depend on the amount of the detected change in the position of the crown. In some examples, the amount or speed of the scaling may be proportional to the amount of detected rotation of the crown. For example, the amount of scaling corresponding to a half rotation of the crown may be equal to 50% of the amount of scaling corresponding to one rotation of the crown. The process can then return to block 1502, where new crown position information can be received.

It should be appreciated that the actual values used to linearly map the change in crown position to the amount or speed of scaling can vary depending on the desired functionality of the device. Additionally, it should be appreciated that other mappings between the amount of scaling and the change in position can be used. For example, acceleration, velocity (described in more detail below with respect to FIGS. 21-44), or the like, can be used to determine the amount or speed of scaling. Additionally, non-linear mappings between crown characteristics (e.g., position, velocity, acceleration, etc.) and the amount or speed of scaling can be used.

To further illustrate the operation of process 1500, FIG. 16 illustrates an example interface of device 100 showing a triangle 1602. At block 1502 of process 1500, processor 202 of device 100 may receive crown position information from encoder 204. Because crown 108 has not been rotated in FIG. 16, a negative determination may be made by processor 202 at block 1504, causing the process to return to block 1502.

17, the crown 108 is rotated in an upward rotational direction 1702. The processor 202 may again receive crown position information reflecting this rotation from the encoder 204 at block 1502 of the process 1500. Thus, the processor 202 may make a positive determination at block 1504, which causes the process to proceed to block 1506. At block 1506, the processor 202 may cause the display 106 to scale the view displayed on the display 106. The scaling may increase or decrease the size of the view depending on the direction of rotation of the crown 108, and may have a scaling amount or speed based on a characteristic of the rotation of the crown 108 (e.g., distance, velocity, acceleration, or the like). In the illustrated example, the scaling amount may be proportional to the amount of rotation of the crown 108. As shown, the display 106 may scale the view containing the triangle 1602 using a positive scale factor. As a result, the triangle 1602 in FIG. 17 appears larger than that shown in FIG. As the user continues to rotate the crown 108 in the rotation direction 1702, the processor 202 can continue to cause the display 106 to scale the view containing the image of the triangle 1602 with a positive scale factor, as shown in FIG. 18, where the triangle 1602 appears larger than that shown in FIG. 16 and FIG. 17. When the crown 108 stops rotating, the scaling of the view containing the triangle 1602 can likewise stop. In some examples, if the view of the triangle 1602 is scaled to its maximum amount and the user continues to rotate the crown 108 in the rotation direction 1702, the processor 202 can limit the scaling of the display 106. In yet other examples, a rubber banding effect can be performed by allowing the size of the view containing the triangle 1602 to increase up to a rubber banding limit that is greater than the maximum scaling amount for the view, and then snapping the size of the view back to its maximum scaling amount in response to the crown 108 stopping its rotation. It should be appreciated that the action taken in response to reaching the scaling limit of the display 106 can be configured in any desired manner.

19, the crown 108 is rotated in a downward rotation direction 1704. The processor 202 may again receive crown position information reflecting this rotation from the encoder 204 at block 1502 of the process 1500. Thus, the processor 202 may make a positive determination at block 1504, which causes the process to proceed to block 1506. At block 1506, the processor 202 may cause the display 106 to scale the view using a negative scale factor corresponding to the rotation direction 1704. Similar to the scaling performed in response to the rotation of the crown 108 in the rotation direction 1702, the scaling performed in response to the rotation of the crown 108 in the rotation direction 1704 may depend on the characteristics of the rotation of the crown 108 (e.g., distance, speed, acceleration, or the like). In the illustrated example, the amount of scaling may be proportional to the amount of rotation of the crown 108. As shown, the display 106 may scale the view containing the image of the triangle 1602 using a negative scale factor. As a result, triangle 1602 in FIG. 19 is smaller than that shown in FIG. 18. As the user continues to rotate crown 108 in rotation direction 1704, processor 202 can continue to cause display 106 to scale the view of the image containing triangle 1602 with a negative scale factor, as shown in FIG. 20. In FIG. 20, triangle 1602 is smaller than that shown in FIGS. 18 and 19. When crown 108 stops rotating, the scaling of the view containing triangle 1602 can likewise stop. In some examples, if the view containing triangle 1602 is scaled to its minimum amount and the user continues to rotate crown 108 in rotation direction 1704, processor 202 can limit the scaling of display 106. In yet other examples, a rubber banding effect can be performed by allowing the size of the view containing triangle 1602 to decrease to a rubber banding limit that is less than the minimum scaling amount for the view, and then snapping the size of the view back to its minimum scaling amount in response to crown 108 stopping rotation. It should be appreciated that the action taken in response to reaching the scaling limit of the display 106 can be configured in any desired manner.

Although a particular scaling example is provided, it should be understood that a mechanical crown of a wearable electronic device can be used in a similar manner to similarly scale views of other types of data, such as media items, web pages, or the like. In addition, the amount or speed of scaling can be configured to depend on any characteristic of the crown. Further, in some examples, once a minimum or maximum scaling of the view is reached, continuing to rotate the crown in the same direction can cause scaling in the opposite direction. For example, rotating the crown upwards can cause the view to zoom in. However, once a scaling limit is reached, rotating the crown upwards can then cause the view to scale in the opposite direction (e.g., zoom out).

FIG. 21 illustrates an exemplary process 2100 for scrolling a view of a display based on an angular rotational velocity of the crown, according to various examples. A view can include a visual representation of any type of data being displayed. For example, a view can include a display of text, media items, web pages, or the like. Process 2100 can be similar to process 900, except that process 2100 can scroll the view based on a scroll rate that is dependent on the angular rotational velocity of the crown. In some examples, process 2100 can be performed by a wearable electronic device similar to device 100. In these examples, content or any other view can be displayed on display 106 of device 100, and process 2100 can be performed to visually scroll the view in response to a rotation of crown 108. In some examples, scrolling can be performed by translating the displayed content along a fixed axis.

At block 2102, a view of a display of the wearable electronic device may be displayed. As described above, a view may include any visual representation of any type of data displayed by the display of the device.

At block 2104, crown position information may be received in a manner similar or identical to that described above with respect to block 902 of process 900. For example, the crown position information may be received by a processor (e.g., processor 202) from an encoder (e.g., encoder 204) and may include an analog or digital representation of the absolute position of the crown, the change in rotational position of the crown, or other position information of the crown.

At block 2106, a scroll rate (e.g., speed and scroll direction) can be determined. In some examples, the scrolling of the view can be determined using physics-based motion modeling. For example, the view can be treated as an object with a moving velocity corresponding to the speed of scrolling across the device's display. The rotation of the crown can be treated as a force applied to the view in a direction corresponding to the direction of the crown rotation, where the amount of force depends on the angular rotation speed of the crown. For example, a larger angular rotation speed can correspond to a larger amount of force applied to the view. Any desired linear or non-linear mapping between the angular rotation speed of the crown and the force applied to the view can be used. Additionally, a drag force can be applied in a direction opposite to the scroll direction. This can be used to decay the scroll rate over time, allowing the scrolling to stop without additional input from the user. Thus, the scroll rate at discrete times can take the following general form:

In Equation 1.1, V _T represents the determined scroll velocity (speed and direction) at time T, V _(T-1) represents the previous scroll velocity (speed and direction) at time T-1, ΔV _CROWN represents the change in velocity caused by the force applied to the view in response to the rotation of the crown, and ΔV _DRAG represents the change in velocity of the view caused by the drag force in the direction opposite to the movement of the view (scrolling of the view). As described above, the force applied to the view by the crown can depend on the angular rotation speed of the crown. Therefore, ΔV _CROWN can also depend on the angular rotation speed of the crown. Typically, the greater the angular rotation speed of the crown, the greater the value of ΔV _CROWN . However, the actual correspondence between the angular rotation speed of the crown and ΔV _CROWN can be changed depending on the desired user feel of the scroll effect. For example, various linear or non-linear correspondences between the angular rotation speed of the crown and ΔV _CROWN can be used. In some examples, ΔV _DRAG can be dependent on the scroll speed, such that greater speeds produce a greater opposite speed change. In other examples, ΔV _DRAG can have a constant value. However, it should be understood that any constant or variable amount of opposite speed change can be used to produce the desired scrolling effect. Note that typically, in the absence of user input in the form of ΔV _CROWN , V _T will approach (and become) zero based on ΔV _DRAG according to Equation 1.1, but in the absence of user input in the form of crown rotation (ΔV _CROWN ), V _T will not change sign.

As can be seen from Equation 1.1, the scroll rate can continue to increase as long as ΔV _CROWN is greater than ΔV _DRAG . In addition, the scroll rate can have a non-zero value even when no ΔV _CROWN input is received. Therefore, if the view is scrolling at a non-zero rate, it can continue to scroll even if the user does not rotate the crown. The scroll distance and time until scrolling stops can depend on the scroll rate when the user stops rotating the crown and the ΔV _DRAG component.

In some examples, when the crown is rotated in a direction that corresponds to a scrolling direction that is opposite to the direction the view is currently scrolled, the V _(T-1) component can be reset to a value of 0, allowing the user to quickly change the direction of scrolling without having to provide sufficient force to offset the current scrolling rate of the view.

At block 2108, the display may be updated based on the scroll speed and direction determined at block 2106. This may include translating the displayed view by an amount corresponding to the determined scroll speed and in a direction corresponding to the determined scroll direction. The process may then return to block 2104, where additional crown position information may be received.

It should be appreciated that blocks 2104, 2106, and 2108 may be repeated at any desired frequency to continually determine the scroll speed and update the display accordingly.

To further illustrate the operation of process 2100, FIG. 22 illustrates an exemplary interface of device 100 having a visual representation of a line of text containing the numbers 1-9. At block 2102 of process 2100, processor 202 of device 100 may cause display 106 to display the illustrated interface. At block 2104, processor 202 may receive crown position information from encoder 204. At block 2106, a scroll speed and scroll direction may be determined. Because the current scroll speed is 0 and because crown 108 is not currently rotated, a new scroll speed may be determined to be 0 using equation 1.1. At block 2108, processor 202 may cause display 106 to update the display with the speed and direction determined at block 2106. However, because the determined speed was 0, no changes to the display need to be made. For purposes of illustration, FIGS. 23-29 illustrate subsequent views of the interface shown in FIG. 22 at different times, where the amount of time between each view is equal.

23, the crown 108 is rotated in an upward rotational direction at a rotational speed 2302. The processor 202 can again receive crown position information reflecting this rotation from the encoder 204 in block 2104. Thus, in block 2106, the processor 202 can convert this rotational speed into a value of ΔV _CROWN to determine a new scroll speed V _T. In this example, the rotation of the crown 108 in an upward direction corresponds to an upward scroll direction. In other examples, other directions can be used. In block 2108, the processor 202 can cause the display 106 to update the display based on the determined scroll speed and direction. As shown in FIG. 23, this update causes the line of text to translate upward at a scroll speed 2304. Because the crown 108 has just begun to rotate, the rotational speed 2302 can be relatively low compared to a typical rotational speed of a crown. Thus, the scroll speed 2304 can also have a relatively low value compared to a typical or maximum scroll speed. As a result, only the portion of the line of text containing the value "1" has been translated off the display.

24, the crown 108 is rotated in an upward rotational direction at a rotational speed 2306, which can be greater than the rotational speed 2302. The processor 202 can again receive crown position information from the encoder 204 in block 2104. Thus, in block 2106, the processor 202 can convert this rotational speed into a value of ΔV _CROWN to determine a new scroll speed V _T. Because the display previously had a non-zero scroll speed value (e.g., as shown in FIG. 23), the new ΔV _CROWN value corresponding to the rotational speed 2306 can be added to the previous scroll speed value V _(T-1) (e.g., having scroll speed 2304). Thus, the new scroll speed 2308 can be greater than the scroll speed 2304, as long as the new ΔV _CROWN value is greater than the value of ΔV _DRAG . However, if the value of ΔV _CROWN corresponding to the rotation speed 2306 is less than the value of ΔV _DRAG , then the new scroll speed 2308 can be less than the scroll speed 2304. In the illustrated example, it is assumed that the new value of ΔV _CROWN is greater than the value of ΔV _DRAG . In block 2108, the processor 202 can cause the display 106 to update the display based on the determined scroll speed and direction. As shown in FIG. 24, this update causes the line of text to translate upward at the scroll speed 2308. Because the value of ΔV _CROWN corresponding to the rotation speed 2306 is greater than the value of ΔV _DRAG , the scroll speed 2308 can be greater than the scroll speed 2304. As a result, the line of text is translated a greater distance over the same amount of time, thereby causing an entire line of text to be translated vertically out of the display.

25, the crown 108 is rotated in an upward rotational direction at a rotational speed 2310, which may be greater than the rotational speed 2306. The processor 202 may again receive crown position information reflecting this rotation from the encoder 204 in block 2104. Thus, in block 2106, the processor 202 may convert this rotational speed into a value of ΔV _CROWN to determine a new scroll speed V _T. Because the display previously had a non-zero scroll speed value (e.g., as shown in FIG. 24), the new ΔV _CROWN value corresponding to the rotational speed 2310 may be added to the previous scroll speed value V _(T-1) (e.g., having scroll speed 2308). Thus, the new scroll speed 2312 may be greater than the scroll speed 2308, so long as the new ΔV _CROWN value is greater than the value of ΔV _DRAG . However, if the value of ΔV _CROWN corresponding to the rotation speed 2310 is less than the value of ΔV _DRAG , then the new scroll speed 2312 can be less than the scroll speed 2308. In the illustrated example, it is assumed that the new value of ΔV _CROWN is greater than the value of ΔV _DRAG . In block 2108, the processor 202 can cause the display 106 to update the display based on the determined scroll speed and direction. As shown in FIG. 25, this update causes the line of text to translate upward at the scroll speed 2312. Because the value of ΔV _CROWN corresponding to the rotation speed 2310 is greater than the value of ΔV _DRAG , the scroll speed 2312 can be greater than the scroll speed 2308. As a result, the line of text is translated a greater distance over the same amount of time, thereby vertically translating 1.5 lines of text out of the display.

26, the crown 108 is rotated in an upward rotational direction at a rotational speed 2314, which can be greater than the rotational speed 2310. The processor 202 can again receive crown position information reflecting this rotation from the encoder 204 in block 2104. Thus, in block 2110, the processor 202 can convert this rotational speed into a value of ΔV _CROWN to determine a new scroll speed V _T. Because the display previously had a non-zero scroll speed value (e.g., as shown in FIG. 25), the new ΔV _CROWN value corresponding to the rotational speed 2314 can be added to the previous scroll speed value V _(T-1) (e.g., having scroll speed 2312). Thus, the new scroll speed 2316 can be greater than the scroll speed 2312, so long as the new ΔV _CROWN value is greater than the value of ΔV _DRAG . However, if the value of ΔV _CROWN corresponding to the rotation speed 2314 is less than the value of ΔV _DRAG , then the new scroll speed 2316 can be less than the scroll speed 2312. In the illustrated example, it is assumed that the new value of ΔV _CROWN is greater than the value of ΔV _DRAG . In block 2108, the processor 202 can cause the display 106 to update the display based on the determined scroll speed and direction. As shown in FIG. 26, this update causes the line of text to translate upward at the scroll speed 2316. Because the value of ΔV _CROWN corresponding to the rotation speed 2314 is greater than the value of ΔV _DRAG , the scroll speed 2316 can be greater than the scroll speed 2312. As a result, the line of text is translated a greater distance over the same amount of time, thereby causing two lines of text to be translated vertically out of the display.

27, the crown 108 has not been rotated in any direction. The processor 202 may again receive crown position information reflecting this rotation from the encoder 204 in block 2104. Thus, in block 2110, the processor 202 may determine a new scroll speed V _T based on the previous scroll speed V _(T-1) (e.g., with scroll speed 2316) and the value of ΔV _DRAG . Thus, as long as the previous scroll speed 2316 is greater than the value of ΔV _DRAG , the scroll speed may have a non-zero value even when no crown rotation has been performed. However, if the previous scroll speed V _(T-1) (e.g., with scroll speed 2316) is equal to the value of ΔV _DRAG , the scroll speed may have a value of 0. In the illustrated example, it is assumed that the previous scroll speed V _(T-1) (e.g., with scroll speed 2316) is greater than the value of ΔV _DRAG . At block 2108, the processor 202 may cause the display 106 to update the display based on the determined scroll speed and direction. As shown in FIG. 27, this update has caused the line of text to be translated upward at scroll speed 2318. Because ΔV _DRAG can have a non-zero value, and because the previous scroll speed V _(T-1) (e.g., having scroll speed 2316) can be greater than the value of ΔV _DRAG , scroll speed 2318 can have a non-zero value that is less than scroll speed 2316. As a result, the line of text has been translated a shorter distance over the same amount of time, thereby causing 1.5 lines of text to be translated vertically out of the display.

28, the crown 108 has not been rotated in any direction. The processor 202 may again receive crown position information reflecting this rotation from the encoder 204 in block 2104. Thus, in block 2110, the processor 202 may determine a new scroll speed V _T based on the previous scroll speed V _(T-1) (e.g., with scroll speed 2318) and the value of ΔV _DRAG . Thus, as long as the previous scroll speed 2318 is greater than the value of ΔV _DRAG , the scroll speed may have a non-zero value even when no crown rotation has been performed. However, if the previous scroll speed V _(T-1) (e.g., with scroll speed 2318) is equal to the value of ΔV _DRAG , the scroll speed may have a value of 0. In the illustrated example, it is assumed that the previous scroll speed V _(T-1) (e.g., with scroll speed 2318) is greater than the value of ΔV _DRAG . At block 2108, the processor 202 may cause the display 106 to update the display based on the determined scroll speed and direction. As shown in FIG. 28, this update causes the line of text to be translated upward at scroll speed 2320. Because ΔV _DRAG can have a non-zero value, and because the previous scroll speed V _(T-1) (e.g., having scroll speed 2318) can be greater than the value of ΔV _DRAG , scroll speed 2320 can have a non-zero value that is less than scroll speed 2318. As a result, the line of text is translated a shorter distance over the same amount of time, thereby causing one line of text to be translated vertically and out of the display.

29, the crown 108 has not been rotated in any direction. The processor 202 may again receive crown position information reflecting this rotation from the encoder 204 in block 2104. Thus, in block 2110, the processor 202 may determine a new scroll speed V _T based on the previous scroll speed V _(T-1) (e.g., with scroll speed 2320) and the value of ΔV _DRAG . Thus, as long as the previous scroll speed 2320 is greater than the value of ΔV _DRAG , the scroll speed may have a non-zero value even when no crown rotation has been performed. However, if the previous scroll speed V _(T-1) (e.g., with scroll speed 2320) is equal to the value of ΔV _DRAG , the scroll speed may have a value of 0. In the illustrated example, it is assumed that the previous scroll speed V _(T-1) (e.g., with scroll speed 2320) is greater than the value of ΔV _DRAG . At block 2108, the processor 202 may cause the display 106 to update the display based on the determined scroll speed and direction. As shown in FIG. 29, this update has caused the line of text to be translated upward at scroll speed 2322. Because ΔV _DRAG may have a non-zero value, and because the previous scroll speed V _(T-1) (e.g., having scroll speed 2320) may be greater than the value of ΔV _DRAG , scroll speed 2322 may have a non-zero value less than scroll speed 2320. As a result, the line of text has been translated a shorter distance over the same amount of time, thereby causing 0.5 lines of text to be translated vertically and out of the display. This decay in scroll speed may continue until the previous scroll speed V _(T-1) equals the value of ΔV _DRAG , thereby causing the scroll speed to drop to zero. Alternatively, the scroll velocity decay may continue until the previous scroll velocity V _(T-1) falls below a threshold, after which it may be set to a value of zero.

To further illustrate the operation of process 2100, FIG. 30 illustrates an exemplary interface of device 100 having a visual representation of lines of text containing numbers 1-9 similar to that shown in FIG. 22. FIGS. 31-36 illustrate the scrolling of the display at scroll speeds 3104, 3108, 3112, 3116, 3118, and 3120 based on input rotation speeds 3102, 3106, 3110, and 3114 in a manner similar to that described above with respect to FIGS. 23-28. Thus, the time lengths between subsequent views shown in FIGS. 31-36 are equal. For purposes of illustration, FIGS. 37-40 illustrate subsequent views of the interface shown in FIG. 36 at different times, where the time lengths between each view are equal.

In contrast to FIG. 29, where no rotation input was received, in FIG. 37, a downward rotation having a rotation speed 3702 can be performed. In this example, the processor 202 can again receive crown position information reflecting this downward rotation from the encoder 204 in block 2104. In block 2106, the processor 202 can convert this rotation speed into a value of ΔV _CROWN to determine a new scroll speed V _T. Because the downward rotation of the crown 108 is in the opposite direction to the scrolling shown in FIG. 36, the value of ΔV _CROWN can have a polarity that is opposite to that of the previous scroll speed value V _(T-1) . In some examples, the new scroll speed V _T can be calculated by adding the new value of ΔV _CROWN (having the opposite polarity) to the previous scroll speed value V _(T-1) and subtracting the value of ΔV _DRAG . In other examples, such as that shown in FIG. 37, when the rotation of the crown 108 is in the opposite direction to that of the previous scroll (e.g., when the polarity of ΔV _CROWN is opposite to that of V _(T-1) ), the previous scroll speed value V _(T-1) can be set to 0. This can be done to allow the user to quickly change the scroll direction without having to offset the previous scroll speed. In block 2108, the processor 202 can cause the display 106 to update the display based on the determined scroll speed and direction. As shown in FIG. 37, this update has caused the line of text to translate downward at scroll speed 3704. Because the crown 108 has just begun to rotate, the rotation speed 3702 can be relatively low compared to a typical rotation speed of the crown. Therefore, the scroll speed 3704 can also have a relatively low value compared to a typical or maximum scroll speed. As a result, a relatively slow scroll can be performed, causing 0.5 lines of text to be translated vertically out of the display.

38, the crown 108 is rotated in a downward rotational direction at a rotational speed 3706, which may be greater than the rotational speed 3702. The processor 202 may again receive crown position information reflecting this rotation from the encoder 204 in block 2104. Thus, in block 2106, the processor 202 may convert this rotational speed into a value of ΔV _CROWN to determine a new scroll speed V _T. Because the display previously had a non-zero scroll speed value (e.g., as shown in FIG. 37), the new ΔV _CROWN value corresponding to the rotational speed 3706 may be added to the previous scroll speed value V _(T-1) (e.g., having scroll speed 3704). Thus, the new scroll speed 3708 may be greater than the scroll speed 3704, as long as the new ΔV _CROWN value is greater than the value of ΔV _DRAG . However, if the value of ΔV _CROWN corresponding to rotation speed 3706 is less than the value of ΔV _DRAG , then new scroll speed 3708 can be less than scroll speed 3704. In the illustrated example, it is assumed that the new value of ΔV _CROWN is greater than the value of ΔV _DRAG . In block 2108, processor 202 can cause display 106 to update the display based on the determined scroll speed and direction. As shown in FIG. 38, this update causes the line of text to translate downward at scroll speed 3708. Because the value of ΔV _CROWN corresponding to rotation speed 3706 is greater than the value of ΔV _DRAG , scroll speed 3708 can be greater than scroll speed 3704. As a result, the line of text is translated a greater distance over the same amount of time, thereby vertically translating an entire line of text out of the display.

39, the crown 108 is rotated in a downward rotational direction at a rotational speed 3710, which may be greater than the rotational speed 3706. The processor 202 may again receive crown position information reflecting this rotation from the encoder 204 in block 2104. Thus, in block 2106, the processor 202 may convert this rotational speed into a value of ΔV _CROWN to determine a new scroll speed V _T. Because the display previously had a non-zero scroll speed value (e.g., as shown in FIG. 38), the new ΔV _CROWN value corresponding to the rotational speed 3710 may be added to the previous scroll speed value V _(T-1) (e.g., having scroll speed 3708). Thus, the new scroll speed 3712 may be greater than the scroll speed 3708, so long as the new ΔV _CROWN value is greater than the value of ΔV _DRAG . However, if the value of ΔV _CROWN corresponding to rotation speed 3710 is less than the value of ΔV _DRAG , then new scroll speed 3712 can be less than scroll speed 3708. In the illustrated example, it is assumed that the new value of ΔV _CROWN is greater than the value of ΔV _DRAG . In block 2108, processor 202 can cause display 106 to update the display based on the determined scroll speed and direction. As shown in FIG. 39, this update causes the line of text to translate downward at scroll speed 3712. Because the value of ΔV _CROWN corresponding to rotation speed 3710 is greater than the value of ΔV _DRAG , scroll speed 3712 can be greater than scroll speed 3708. As a result, the line of text is translated a greater distance over the same amount of time, thereby vertically translating 1.5 lines of text out of the display.

40, the crown 108 is rotated in a downward rotational direction at a rotational speed 3714, which can be greater than the rotational speed 3710. The processor 202 can again receive crown position information reflecting this rotation from the encoder 204 in block 2104. Thus, in block 2110, the processor 202 can convert this rotational speed into a value of ΔV _CROWN to determine a new scroll speed V _T. Because the display previously had a non-zero scroll speed value (e.g., as shown in FIG. 39), the new ΔV _CROWN value corresponding to the rotational speed 3714 can be added to the previous scroll speed value V _(T-1) (e.g., having scroll speed 3712). Therefore, the new scroll speed 3716 can be greater than the scroll speed 3712, so long as the new ΔV _CROWN value is greater than the value of ΔV _DRAG . However, if the value of ΔV _CROWN corresponding to rotation speed 3714 is less than the value of ΔV _DRAG , then new scroll speed 3716 can be less than scroll speed 3712. In the illustrated example, it is assumed that the new value of ΔV _CROWN is greater than the value of ΔV _DRAG . In block 2108, processor 202 can cause display 106 to update the display based on the determined scroll speed and direction. As shown in FIG. 40, this update causes the lines of text to translate downward at scroll speed 3716. Because the value of ΔV _CROWN corresponding to rotation speed 3714 is greater than the value of ΔV _DRAG , scroll speed 3716 can be greater than scroll speed 3712. As a result, the lines of text are translated a greater distance over the same amount of time, thereby causing two lines of text to be translated vertically out of the display.

Although not shown, when the crown 108 stops rotating, the view can continue to be scrolled downward in a manner similar to that described above with respect to Figures 35 and 36. The speed and amount of scrolling that can be performed can depend on the scroll speed when the crown 108 stops rotating and the value being used for ΔV _DRAG .

Although a particular scrolling example is provided, it should be understood that process 2100 can be used in a similar manner to scroll other types of data, such as media items, web pages, applications, or the like. For example, process 2100 can be performed to scroll a list of applications in a manner similar to that described above with respect to process 300. However, the speed at which the applications are scrolled when using process 2100 can depend on the angular rotation speed of the crown.

41 illustrates an exemplary process 4100 for scaling a view of a display based on an angular rotation rate of the crown, according to various examples. A view can include a visual representation of any type of data being displayed. For example, a view can include a display of text, media items, web pages, or the like. Process 4100 can be similar to process 2100, except that rather than determining a scroll rate, process 4100 can determine a scaling rate (e.g., amount and direction of change in size per unit time). Although the amounts determined are different, they can be determined in a similar manner. In some examples, process 4100 can be performed by a wearable electronic device similar to device 100. In these examples, content or any other view can be displayed on display 106 of device 100, and process 4100 can be performed to visually scale the view in response to a rotation of crown 108.

At block 4102, a view of the display of the wearable electronic device may be displayed. As described above, the view may include any visual representation of any type of data displayed by the display of the device.

At block 4104, crown position information may be received in a manner similar or identical to that described above with respect to block 902 of process 900. For example, the crown position information may be received by a processor (e.g., processor 202) from an encoder (e.g., encoder 204) and may include an analog or digital representation of the absolute position of the crown, the change in rotational position of the crown, or other position information of the crown.

In block 4106, a scaling rate (e.g., speed and positive/negative scaling direction) can be determined. In some examples, the scaling of the view can be determined using physics-based modeling of motion. For example, the scaling rate can be treated as the velocity of the moving object. The rotation of the crown can be treated as a force applied to the object in a direction corresponding to the direction of the rotation of the crown, where the amount of force depends on the speed of the angular rotation of the crown. As a result, the scaling rate can be increased or decreased, and the object can move in a different direction. For example, a larger angular rotation speed can correspond to a larger amount of force applied to the object. Any desired linear or non-linear correspondence between the angular rotation speed and the force applied to the object can be used. In addition, a drag force can be applied in a direction opposite to the direction of motion (e.g., scaling). This can be used to decay the scaling rate over time, allowing the scaling to stop without additional input from the user. Therefore, the scaling rate at discrete times can take the following general form:

In Equation 1.2, V _T represents the determined scaling velocity (speed and direction) at time T, V _(T-1) represents the previous scaling velocity (speed and direction) at time T-1, ΔV _CROWN represents the change in the scaling velocity caused by the force applied in response to the rotation of the crown, and ΔV _DRAG represents the change in the scaling velocity caused by the drag force in the opposite direction to the motion of the scaling. As mentioned above, the force applied to the scaling by the crown can depend on the angular rotation speed of the crown. Therefore, ΔV _CROWN can also depend on the angular rotation speed of the crown. Typically, the greater the angular rotation speed of the crown, the greater the value of ΔV _CROWN . However, the actual correspondence between the angular rotation speed of the crown and ΔV _CROWN can be varied depending on the desired user feel of the scaling effect. In some examples, ΔV _DRAG can depend on the scaling velocity, such that a greater speed can produce a larger opposite scaling change. In other examples, ΔV _DRAG can have a constant value. However, it should be understood that any constant or variable amount of opposing velocity change can be used to produce the desired scaling effect. Note that typically, in the absence of user input in the form of ΔV _CROWN , V _T will approach (and become) zero based on ΔV _DRAG according to Equation 1.2, but V _T will not change sign in the absence of user input in the form of crown rotation (ΔV _CROWN ).

As can be seen from equation 1.2, the scaling rate can continue to increase as long as ΔV _CROWN is greater than ΔV _DRAG . In addition, the scaling rate can have a non-zero value even when no ΔV _CROWN input is received. Therefore, if the view is scaling at a non-zero rate, it can continue to scale even if the user does not rotate the crown. The amount of scaling and the time it takes for the scaling to stop can depend on the scaling rate when the user stops rotating the crown, and the ΔV _DRAG component.

In some examples, when the crown is rotated in the opposite direction, which corresponds to a scaling direction that is opposite to the direction in which the view is currently scaled, the V _(T-1) component can be reset to a value of 0, allowing the user to quickly change the direction of scaling without having to provide sufficient force to offset the current scaling rate of the view.

At block 4108, the display may be updated based on the scaling speed and direction determined at block 4106. This may include scaling the view by an amount corresponding to the determined scaling speed and in a direction corresponding to the determined scaling direction (e.g., larger or smaller). The process may then return to block 4104, where additional crown position information may be received.

It should be appreciated that blocks 4104, 4106, and 4108 can be repeated at any desired frequency to continually determine the scaling speed and update the display accordingly.

To further illustrate the operation of process 4100, FIG. 42 illustrates an exemplary interface of device 100 having an image of triangle 4202. At block 4102 of process 4100, processor 202 of device 100 may cause display 106 to display the illustrated triangle 4202. At block 4104, processor 202 may receive crown position information from encoder 204. At block 4106, a scaling speed and scaling direction may be determined. Because the current scroll speed is zero and because crown 108 is not currently rotated, a new scaling speed may be determined to be zero using equation 1.2. At block 4108, processor 202 may cause display 106 to update the display with the speed and direction determined at block 4106. However, because the determined speed was zero, no changes to the display need to be made. For purposes of illustration, FIGS. 43 and 44 illustrate subsequent views of the interface shown in FIG. 42 at different times, where the time lengths between each view are equal.

43, the crown 108 is rotated in an upward rotational direction at a rotational speed 4302. The processor 202 can again receive crown position information reflecting this rotation from the encoder 204 in block 4104. Thus, in block 4106, the processor 202 can convert this rotational speed into a value of ΔV _CROWN to determine a new scaling speed V _T. In this example, the upward crown rotation corresponds to a positive scaling direction (e.g., a direction that increases the size of the view). In other examples, other directions can be used. In block 4108, the processor 202 can cause the display 106 to update the display based on the determined scaling speed and direction. As shown in FIG. 43, this update has caused the size of the triangle 4202 to increase at a rate of change corresponding to the determined scaling speed. Because the crown 108 has just begun to rotate, the rotational speed 4302 can be relatively low compared to a typical rotational speed of the crown. Therefore, the scaling speed can also have a relatively low value compared to a typical or maximum scroll speed. As a result, only a small change in the size of triangle 4202 can be observed.

43, the crown 108 is rotated in an upward rotational direction at a rotational speed 4304, which may be greater than the rotational speed 4302. The processor 202 may again receive crown position information reflecting this rotation from the encoder 204 in block 4104. Thus, in block 4106, the processor 202 may convert this rotational speed into a value of ΔV _CROWN to determine a new scaling speed V _T. Because the display previously had a non-zero scaling speed value (e.g., as shown in FIG. 43), the new ΔV _CROWN value corresponding to the rotational speed 4304 may be added to the previous scaling speed value V _(T-1) . Thus, as long as the new ΔV _CROWN value is greater than the value of ΔV _DRAG , the new scaling speed may be greater than the previous scaling speed. However, if the value of ΔV _CROWN corresponding to the rotational speed 4304 is less than the value of ΔV _DRAG , the new scaling speed may be less than the previous scaling speed. In the illustrated example, it is assumed that the new value of ΔV _CROWN is greater than the value of ΔV _DRAG . In block 4108, the processor 202 can cause the display 106 to update the display based on the determined scaling speed and direction. As shown in FIG. 44, this update causes the size of the triangle 4202 to increase at the determined scaling speed. Because the value of ΔV _CROWN, which corresponds to the rotation speed 4304, is greater than the value of ΔV _DRAG , the scaling speed can be greater than the previous scaling speed. As a result, a change in the size of the triangle 4202 can be observed that is greater than that shown in FIG.

Similar to the scrolling performed using process 2100, the scaling of the view containing triangle 4202 may continue after the rotation of crown 108 has stopped. However, because of the value of ΔV _DRAG in equation 1.2, the rate at which the size of the view containing triangle 4202 increases may decrease over time. In addition, a similar scaling may be performed to decrease the size of the view containing triangle 4202 in response to crown 108 being rotated in the opposite direction. The speed of the scaling may be calculated in a manner similar to that used to calculate the positive scaling shown in FIGS. 42-44. Additionally, similar to the scrolling performed using process 2100, the speed and direction of the scaling may be set to 0 in response to the rotation of crown 108 in a direction opposite to the direction of the scaling. This may be done to allow the user to quickly change the direction of the scaling.

Furthermore, in some examples, the speed scaling can reverse direction when a minimum or maximum scaling of a view is reached. For example, the speed scaling can cause the view to zoom in at a non-zero speed. When a scaling limit is reached, the direction of scaling can be reversed, causing the view to scale in the opposite direction (e.g., zoom out) at the same speed that the view was scaling before the scaling limit was reached.

In some examples, the scrolling or scaling performed in any of the processes described above (e.g., processes 300, 900, 1500, 2100, or 4100) may be stopped in response to a change in the context of the electronic device. The context may represent any condition that constitutes the environment in which the crown position information is being received. For example, the context may include a current application being executed by the device, a type of application or process being displayed by the device, a selected object within a view of the device, or the like. By way of example, if crown position information indicating a change in the position of the crown 108 is received while performing process 300, the device 100 may scroll through a list of applications as described above. However, in response to a change in context in which the user selects one of the displayed applications, thereby causing the device 100 to open the application, the device 100 may cease performing the scrolling function of block 306 that was previously performed to prevent the scrolling function from being performed within the opened application. In some examples, after detecting a change in context, device 100 may also ignore input from crown 108 by ceasing to perform the scroll function of block 306, even if crown 108 continues to be rotated. In some examples, device 100 may cease to perform the scroll function of block 306 in response to a change in the position of crown 108 for a threshold length of time after detecting a change in context. The threshold length of time may be any desired length of time, such as 1 second, 2 seconds, 3 seconds, 4 seconds, or more than 4 seconds. Similar behaviors may also be performed in response to detecting a change in context while performing process 900 or 1500. For example, device 100 may cease to perform a previously performed scroll or scale function in response to detecting a change in context. Additionally, in some examples, after detecting a change in context, device 100 may also ignore input from crown 108 by ceasing to scroll or zoom the view in response to a change in the position of crown 108 for a threshold length of time after detecting a change in context. Similar behaviors may also be performed in response to detecting a change in context while performing blocks 2100 or 4100. For example, device 100 may stop a previously performed scrolling or zooming function having a non-zero speed in response to detecting a change in context. Additionally, in some examples, after detecting a change in context, device 100 may also ignore input from crown 108 by ceasing to scroll or zoom the view in response to a change in the position of crown 108 for a threshold amount of time after detecting the change in context. Stopping a scrolling or scaling function in response to detecting a change in context and/or ignoring future input from crown 108 may advantageously prevent input entered while operating in one context from carrying over to another context in an undesirable manner. For example, a user may use process 300 to scroll through a list of applications using crown 108 and select a desired music application while the momentum of crown 108 continues to rotate. Failure to stop the scrolling function and ignore the input from crown 108 in response to detecting a change in context may cause device 100 to perform a scrolling function within the selected application or may cause the input from crown 108 to be interpreted in a different manner (e.g., as adjusting the volume in a music application) that was not intended by the user.

In some examples, certain types of context changes may not result in device 100 stopping an ongoing scrolling or scaling function and/or device 100 not ignoring future input from crown 108. For example, if device 100 is simultaneously displaying multiple views or objects in display 106, a selection between the displayed views or objects may not cause device 100 to stop a scrolling or scaling function and/or device 100 to ignore future input from crown 108, as described above. For example, device 100 may simultaneously display two sets of lines of text similar to those shown in FIG. 10. In this example, device 100 may scroll one of the sets using process 900. In response to a user selection of the other set of lines of text (e.g., via a tap on the touch-sensitive display of device 100 at a location corresponding to the other set of lines of text), device 100 may begin scrolling the other set of lines of text based on a previous scroll speed and/or a change in the currently detected position of crown 108. However, if a different type of context change occurs (e.g., a new application is opened, an item not currently displayed by device 100 is selected, or the like), device 100 may stop any ongoing scrolling or scaling function and/or ignore input from crown 108 for the threshold time length, as described above. In another example, in response to a user selection of the other set of lines of text (e.g., via a tap on a touch-sensitive display of device 100 at a location corresponding to the other set of lines of text), rather than beginning to scroll the other set of lines of text based on a change in the previous scrolling speed and/or the current position of crown 108, device 100 may stop any ongoing scrolling or scaling function and/or ignore input from crown 108 for the threshold time length. However, the threshold time length may be shorter than the threshold time length used for changes in other types of context changes (e.g., a new application is opened, an item not currently displayed by device 100 is selected, or the like). Although particular types of context changes are provided above, it should be understood that any type of context change may be selected.

In some examples, the device 100 may include a mechanism for detecting physical contact with the crown 108. For example, the device 100 may include a capacitance sensor configured to detect a change in capacitance caused by contact with the crown 108, a resistance sensor configured to detect a change in resistance caused by contact with the crown 108, a pressure sensor configured to detect a depression of the crown 108 caused by contact with the crown 108, a temperature sensor configured to detect a change in temperature of the crown 108 caused by contact with the crown 108, or the like. It should be understood that any desired mechanism for detecting contact with the crown 108 may be used. In these examples, the presence or absence of contact with the crown 108 may be used to stop scrolling or scaling performed in any of the processes described above (e.g., processes 300, 900, 1500, 2100, or 4100). For example, in some examples, the device 100 may be configured to perform a scrolling or scaling function as described above with respect to processes 300, 900, 1500, 2100, or 4100. In response to detecting an abrupt halt in the rotation of the crown 108 (e.g., a halt or a decrease in the rotation speed beyond a threshold) while contact with the crown 108 is detected, the device 100 may stop the scrolling or scaling being performed. This event may represent a situation in which a user rapidly rotates the crown 108 but intentionally stops it, indicating a request to cease scrolling or scaling. However, in response to detecting an abrupt halt in the rotation of the crown 108 (e.g., a halt or a decrease in the rotation speed beyond a threshold) while contact with the crown 108 is not detected, the device 100 may continue the scrolling or scaling being performed. This event may represent a situation in which a user rapidly rotates the crown 108 by performing a forward or backward flick gesture, removes their finger from the crown 108, and reverses their wrist to further wind the crown 108 using another flick gesture. In this situation, the user likely does not intend for the scrolling or scaling to stop.

Although processes 300, 900, 2100, and 4100 have been described above as being used to perform scrolling or scaling of a display object or view, it should be understood that they may be more generally applied to adjust any type of value associated with an electronic device. For example, rather than scrolling or scaling a view in a particular direction in response to a change in the position of the crown 108, the device 100 may instead increase a selected value (e.g., volume, time in a video, or any other value) by an amount or speed in a manner similar to that described above for scrolling or scaling. In addition, rather than scrolling or scaling a view in the opposite direction in response to a change in the position of the crown 108 in the opposite direction, the device 100 may instead decrease a selected value by an amount or speed in a manner similar to that described above for scrolling or scaling.

One or more of the functions related to scaling or scrolling a user interface can be performed by a system similar or identical to the system 4500 shown in FIG. 45. The system 4500 can include instructions stored in a non-transitory computer-readable storage medium, such as memory 4504 or storage device 4502, and executed by a processor 4506. The instructions can also be stored and/or transported in any non-transitory computer-readable storage medium for use by or in connection with an instruction execution system, device, or apparatus, such as a computer-based system, a processor-embedded system, or other system capable of fetching instructions from and executing instructions from an instruction execution system, device, or apparatus. In the context of this document, a "non-transitory computer-readable storage medium" can be any medium in which a program can be embedded or stored for use by or in connection with an instruction execution system, device, or apparatus. Non-transitory computer-readable storage media can include, but are not limited to, electronic, magnetic, optical, electromagnetic, infrared, or semiconductor systems, devices, or equipment, portable computer diskettes (magnetic), random access memory (RAM), read-only memory (ROM), erasable programmable read-only memory (EPROM) (magnetic), portable optical disks such as CDs, CD-Rs, CD-RWs, DVDs, DVD-Rs, or DVD-RWs, or flash memories such as CompactFlash cards, Secure Digital cards, USB memory devices, memory sticks, and the like.

The instructions may also be propagated in any transport medium for use by or in connection with an instruction execution system, device, or apparatus, such as a computer-based system, a processor-embedded system, or other system that can fetch instructions from and execute the instructions from an instruction execution system, device, or apparatus. In the context of this document, a "transport medium" may be any medium that can communicate, propagate, or transport a program for use by or in connection with an instruction execution system, device, or apparatus. Transport media may include, but are not limited to, electronic, magnetic, optical, electromagnetic, or infrared wired or wireless propagation media.

In some examples, the system 4500 can be included in the device 100. In these examples, the processor 4506 can be used as the processor 202. The processor 4506 can be configured to receive outputs from the encoder 204, the buttons 110, 112, and 114, and the touch-sensitive display 106. The processor 4506 can process these inputs as described above with respect to Figures 3, 9, 15, 21, and 41, and processes 300, 900, 1500, 2100, and 4100. It should be understood that the system is not limited to the components and configurations of Figure 45, and can include other or additional components in multiple configurations according to various examples.

Although the present disclosure and embodiments have been fully described with reference to the accompanying drawings, it should be noted that various changes and modifications will become apparent to those skilled in the art. Such changes and modifications are to be understood as being included within the scope of the present disclosure and embodiments as defined by the appended claims.

Claims (15)

1. A computer-implemented method comprising:
In an electronic device having a display,
displaying, via said display, a view including a graphical object,
Receiving a first crown rotation direction associated with a physical crown of the electronic device;
in response to determining that rotation of the physical crown occurred in a first scroll direction based on the first crown rotation direction, scrolling the view in the first scroll direction, where scrolling the view in the first scroll direction includes ceasing to display at least a portion of the graphical object;
receiving a second crown rotation direction while a view displayed on the display is being scrolled in the first scroll direction;
In response to receiving the second crown rotation direction and in response to determining that rotation of the physical crown occurred in a second scrolling direction that is opposite to the first scrolling direction based on the second crown rotation direction,
continuing scrolling of the view in the first scroll direction for a first time period;
scrolling the view in the second scroll direction opposite the first scroll direction over a second time period subsequent to the first time period. The computer-implemented method of claim 1, wherein scrolling the view displayed on the display of the electronic device in the first scroll direction includes scrolling the view at a first determined scroll speed based on a speed of the first crown rotation direction, and scrolling the view displayed on the display of the electronic device in the second scroll direction includes scrolling the view at a second determined scroll speed based on a speed of the second crown rotation direction. 3. A computer-implemented method according to claim 1 or 2, wherein each determined scroll speed is further comprised of:
The previous scroll speed and
a magnitude of a crown scroll speed component, the crown scroll speed component representing a change in scroll speed based on an angular rotation of the physical crown; and
and a magnitude of the drag scroll speed component. 3. A computer-implemented method according to claim 1 or 2, wherein each determined scroll speed is further comprised of:
The magnitude and direction of the previous scroll speed;
A computer-implemented method, comprising: determining a magnitude and direction of a crown scroll speed component, the crown scroll speed component representing a change in scroll speed based on an angular rotation of the physical crown; and The computer-implemented method of claim 1 or 2, wherein each determined scroll speed, determined based on a magnitude and direction of a previous scroll speed and a magnitude and direction of a crown scroll speed component, is decreased based on a drag scroll speed component, the crown scroll speed component representing a change in scroll speed based on an angular rotation of the physical crown. The computer-implemented method of any one of claims 1 to 5, wherein receiving the first crown rotation direction includes detecting a change in rotation of the physical crown over a length of time, and receiving the second crown rotation direction includes detecting a change in rotation of the physical crown over a length of time. A computer-implemented method according to any one of claims 1 to 6, wherein the electronic device is a watch. A computer-implemented method according to any one of claims 1 to 7, wherein the physical crown is a mechanical crown that rotates relative to the housing of the electronic device. The computer-implemented method of any one of claims 1 to 8, wherein continuing to scroll the view displayed on the display of the electronic device in the first scroll direction includes decreasing a scroll speed of the view. The computer-implemented method of claim 9, wherein the scrolling speed of the view is gradually decreased over time. The computer-implemented method of any one of claims 1 to 9, wherein scrolling the view in the second scroll direction includes increasing a scroll speed of the view. The computer-implemented method of claim 11, wherein the scrolling speed of the view increases gradually over time. A computer program for causing a computer to execute the method according to any one of claims 1 to 12. An electronic device,
A memory for storing the computer program of claim 13;
and one or more processors capable of executing the computer programs stored in the memory. An electronic device,
Electronic device comprising means for carrying out the method according to any one of claims 1 to 12.

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