Abstract:
A method of testing an image sensor having a plurality of sensing units includes: utilizing the image sensor to generate a plurality of sensing results respectively corresponding to a plurality of captured images, wherein each sensing result includes a plurality of sensing values respectively generated by the sensing units; and generating a testing result which indicates a performance of the image sensor according to changing of the sensing results.
Abstract:
An optical navigating apparatus, which comprises: a light source, for illuminating a surface to generate an image; an image sensor, for catching pictures of the image; and a controller, for computing a first estimating speed of the optical navigating apparatus according to a first picture of the pictures and a second picture after the first picture. The controller controls at least one of parameters as following according to the first estimating speed: a non-illuminating frequency that the light source does not illuminate pictures after the second picture; a non-catching frequency that the image sensor does not catch pictures after the second picture; a computing frequency that the controller computes pictures after the second picture, which are caught by the image sensor; and a searching range for pictures after the second picture.
Abstract:
An optical navigation method includes: detecting inertia of an image of a feature point; and determining an effective sensing region of an image sensing array according to the detected inertia for reducing power consumption. Besides, an optical navigation apparatus includes a detecting circuit and a determining unit. The detecting circuit is arranged for detecting a moving inertia of a feature point. The determining circuit is coupled to the detecting circuit, and arranged for determining an effective sensing region of an image sensing array according to the detected moving inertia for reducing power consumption.
Abstract:
A hand-held pointing device includes a main body, a processing circuit, a light emitting device and two image sensing devices. The main body has a first surface and a second surface for lying on an operating surface. The two image sensing devices are disposed in the main body and configured to sense first and second images through first and second transparent areas thereof, respectively. The light emitting device, disposed in the main body, is configured to emit a light source through the second transparent area. The processing circuit is configured to determine and operate the hand-held pointing device in a remote controller mode or a mouse mode according to whether the first image contains an image of a reference light source and/or the second image contains an image of the operating surface reflecting the light source. An operation for a hand-held pointing device is also provided.
Abstract:
A communication method applied to a transmission port between an access device and a control device includes: encoding a specific command to generate mode data; generating output data according to content of the mode data and content of command data corresponding to the specific command; and transmitting the output data from one of the access device and control device to the other via the transmission port. The other device of the access device and control device is used for receiving the output data and decoding the mode data of the output data to generate a decoding result, and selecting the specific command from a plurality of operational commands for executing a communication function corresponding to the specific command according to the decoding result.
Abstract:
An optical navigating apparatus, which comprises: a light source, for illuminating a surface to generate an image; an image sensor, for catching pictures of the image; and a controller, for computing a first estimating speed of the optical navigating apparatus according to a first picture of the pictures and a second picture after the first picture. The controller controls at least one of parameters as following according to the first estimating speed: a non-illuminating frequency that the light source does not illuminate pictures after the second picture; a non-catching frequency that the image sensor does not catch pictures after the second picture; a computing frequency that the controller computes pictures after the second picture, which are caught by the image sensor; and a searching range for pictures after the second picture.
Abstract:
A method of testing an image sensor having a plurality of sensing units includes: utilizing the image sensor to generate a plurality of sensing results respectively corresponding to a plurality of captured images, wherein each sensing result includes a plurality of sensing values respectively generated by the sensing units; and generating a testing result which indicates a performance of the image sensor according to changing of the sensing results.
Abstract:
A communication method applied to a transmission port between an access device and a control device includes: encoding a specific command to generate mode data; generating output data according to content of the mode data and content of command data corresponding to the specific command; and transmitting the output data from one of the access device and control device to the other via the transmission port. The other device of the access device and control device is used for receiving the output data and decoding the mode data of the output data to generate a decoding result, and selecting the specific command from a plurality of operational commands for executing a communication function corresponding to the specific command according to the decoding result.
Abstract:
An optical navigation method includes: detecting inertia of an image of a feature point; and determining an effective sensing region of an image sensing array according to the detected inertia for reducing power consumption. Besides, an optical navigation apparatus includes a detecting circuit and a determining unit. The detecting circuit is arranged for detecting a moving inertia of a feature point. The determining circuit is coupled to the detecting circuit, and arranged for determining an effective sensing region of an image sensing array according to the detected moving inertia for reducing power consumption.