摘要:
In one embodiment, apparatus for providing a visual indication of a position of a steerable wheel includes an encoder and a display system. The encoder has a mechanism for mounting part of the encoder to a movable component of a steering system coupled to the steerable wheel. The encoder produces an output signal related to a position of the movable component. The display system is responsive to the output signal produced by the encoder and displays the visual indication of the position of the steerable wheel. Other embodiments are also disclosed.
摘要:
An optical navigation system having two or more optical pipelines for image acquisition and a single multiplexed optical array. Each of the two or more optical pipelines for image acquisition may include an illuminator that emits optical radiation at a navigation surface where each navigation surface is separate from the other navigation surfaces. The single multiplexed optical array may be configured to receive optical radiation reflected from the respective navigation surfaces. The optical navigation system may further include illuminator drivers that control each of the optical pipelines for image acquisition and an optical sensor that is configured to multiplex the images recovered by the optical pipelines for image acquisition and perform image correlation for the different navigation surfaces.
摘要:
A pointing device and method for using the same to measure the motion of that pointing device over a surface is disclosed. The pointing device includes an illumination system, an imaging system, and a controller. The illumination system generates light in a plurality of wavelength bands and illuminates a surface below the pointing device with light from one of the wavelength bands. The imaging system records images of the illuminated surface. The controller selects the wavelength band used to illuminate the surface, compares first and second images recorded by the imaging system at different times when the surface is illuminated with that wavelength band, and determines a displacement indicative of the direction and distance the positioning device moved between the two different times.
摘要:
An optical computer mouse has a support structure that can be moved across a surface. An illumination source that illuminates a region of the surface is coupled to the support structure. An imaging system in the mouse includes an optical sensor array that receives light from the illuminated region of the work surface and an image processor that receives data from the optical sensor array. The optical computer mouse may be switched between a navigation mode of operation, in which the image processor detects motion of the optical computer mouse over the work surface, and a barcode reading mode of operation, in which the image processor senses a barcode as the optical computer mouse is moved across a barcode.
摘要:
An optical navigation system and method for reducing the power consumption of the system uses a surface quality value of a captured image frame of a target surface to selectively reduce the number of photosensitive pixel elements to be used to capture a subsequent image frame.
摘要:
An optical navigation device containing an adjustable depth of field light source is positioned with respect to a surface such that the depth of field of light source can be adjusted to match the Z dimension of a particular surface. In one embodiment, a plurality of individual light sources are used each having a different angle of reflection from the surface. By selecting the light source having an angle of reflection to match the Z dimension of the surface to be navigated the device can be used over a wide range of Z dimensions. In one embodiment, the selection of the proper light source is accomplished upon start-up of the device with respect to a particular surface and in another embodiment a user can adjust the light surface to obtain optimal performance.
摘要:
A compact optical sensor package for use in an optical mouse. The optical sensor package includes a chip enclosure which is physically and electrically bonded to a main circuit Board using Ball Grid Array (BGA) technology. The chip enclosure includes a windowed cover having a window, and a base board hermetically sealed to the windowed cover to enclose the sensor chip. The sensor chip is electrically connected to bonding pads on the inner surface of the base plate. The bonding pads are electrically connected through the base plate to bonding pads on the outer surface of the base plate. The bonding pads on the outer surface of the base plate are elements in this application of Ball Grid Array technology.
摘要:
An input device includes a navigation mechanism configured to move parallel to a shaft and to move tangential to the shaft. The input device further includes a movement detection system to detect movement of the navigation mechanism relative to the shaft.
摘要:
A method and apparatus for focusing an image of a work surface on an optical sensor array in an optical pointing device. Light from a region of the work surface is captured by an imaging system incorporating an optical coupling system and the optical sensor array. The focus of the imaging system is adjusted in accordance with the distance between the optical pointing device and the work surface. The distance may be sensed, or inferred by adjusting the imaging system to maximize the focus of the image.