摘要:
An optical mouse includes a housing, a remote sensing unit and an optical coupling. The remote sensing unit may include a sensor and the optical coupling may be a fiber optic cable and may connect the housing to the remote sensing unit. The fiber optic cable may also be transparent. Mechanical elements of the optical mouse, such as switches or scroll wheels may also be located within the housing of the device.
摘要:
A data input device for use with an optically rough tracking surface comprising a substantially coherent light source for projecting a substantially coherent light beam onto the tracking surface for scattering the substantially coherent light beam. An optic guides the projected substantially coherent light beam toward the tracking surface and comprises a first boundary facing the substantially coherent light source and a second boundary opposite the first boundary. A detector detects at least a portion of the scattered light beam comprising a speckle pattern. The optic is arranged such that the tracking surface is spaced from the second boundary by a distance sufficient to inhibit any substantial retro-reflection of the substantially coherent light beam striking the second boundary from striking the detector. A controller responsive to the detector operates the device in a tracking mode for utilizing the detected speckle pattern to track relative movement between the device and the tracking surface. The device is particularly useful in handheld and laptop devices, such as personal digital assistants, cellular phones, laptop computers, etc., where it is desirable to interact with a tracking surface comprising human skin, such as a fingertip.
摘要:
A pressure-sensitive multi-touch device is provided. The multi-touch device includes a matrix of pressure-sensitive cells, each pressure-sensitive cell configured to change a resistance of the cell inversely proportional to an amount of force applied to that cell. The multi-touch device further includes a spacer assembly between pressure-sensitive cells.
摘要:
Techniques are provided for determining distance to an object in a depth camera's field of view. The techniques may include raster scanning light over the object and detecting reflected light from the object. One or more distances to the object may be determined based on the reflected image. A 3D mapping of the object may be generated. The distance(s) to the object may be determined based on times-of-flight between transmitting the light from a light source in the camera to receiving the reflected image from the object. Raster scanning the light may include raster scanning a pattern into the field of view. Determining the distance(s) to the object may include determining spatial differences between a reflected image of the pattern that is received at the camera and a reference pattern.
摘要:
An optical tracking system is disclosed that provides more precise tracking and better performance in an optical mouse. It involves provides a collimated laser, and imaging a reflection of the collimated laser, such that the reflection has a substantially linear phase gradient. The reflection of the laser includes a pattern of speckles due to optical interference effects. The speckles are imaged such that the substantially linear phase gradient restricts any variation in intensity of the imaging of the speckles during a translating motion of the reflection, thereby providing superior tracking performance.
摘要:
A pressure-sensitive multi-touch device is provided. The multi-touch device includes a matrix of pressure-sensitive cells, each pressure-sensitive cell configured to change a resistance of the cell inversely proportional to an amount of force applied to that cell. The multi-touch device further includes a force-spreading layer configured to diffuse a force of a touch input at a contact area to two or more pressure-sensitive cells within the matrix of pressure-sensitive cells.
摘要:
An optical tracking system is disclosed that provides more precise tracking and better performance in an optical mouse. It involves provides a collimated laser, and imaging a reflection of the collimated laser, such that the reflection has a substantially linear phase gradient. The reflection of the laser includes a pattern of speckles due to optical interference effects. The speckles are imaged such that the substantially linear phase gradient restricts any variation in intensity of the imaging of the speckles during a translating motion of the reflection, thereby providing superior tracking performance.
摘要:
An optical tracking system is disclosed that provides more precise tracking and better performance in an optical mouse. It involves provides a collimated laser, and imaging a reflection of the collimated laser, such that the reflection has a substantially linear phase gradient. The reflection of the laser includes a pattern of speckles due to optical interference effects. The speckles are imaged such that the substantially linear phase gradient restricts any variation in intensity of the imaging of the speckles during a translating motion of the reflection, thereby providing superior tracking performance.
摘要:
Techniques are provided for determining distance to an object in a depth camera's field of view. The techniques may include raster scanning light over the object and detecting reflected light from the object. One or more distances to the object may be determined based on the reflected image. A 3D mapping of the object may be generated. The distance(s) to the object may be determined based on times-of-flight between transmitting the light from a light source in the camera to receiving the reflected image from the object. Raster scanning the light may include raster scanning a pattern into the field of view. Determining the distance(s) to the object may include determining spatial differences between a reflected image of the pattern that is received at the camera and a reference pattern.
摘要:
An optical tracking system is disclosed that provides more precise tracking and better performance in an optical mouse. It involves provides a collimated laser, and imaging a reflection of the collimated laser, such that the reflection has a substantially linear phase gradient. The reflection of the laser includes a pattern of speckles due to optical interference effects. The speckles are imaged such that the substantially linear phase gradient restricts any variation in intensity of the imaging of the speckles during a translating motion of the reflection, thereby providing superior tracking performance.