Abstract: Methods and apparatuses for a free-space multi-dimensional absolute pointer using a projection marker system are described herein. In one embodiment, a presentation system includes, but is not limited to, a projection-based marker apparatus to project one or more optical spots on a display surface for displaying machine generated content capable of being manipulated via a cursor of a pointing device, a handheld device to wirelessly capture the projected optical spots from the display surface, and a control unit communicatively coupled to the projection-based marker apparatus and the handheld device to determine coordinates of the cursor based on characteristics of the captured light spots. Other methods and apparatuses are also described.

Abstract: A method is described that involves identifying one or more images of respective one or more fixed markers. Each marker is positioned on or proximate to a display. The images appear on a pixilated sensor within a handheld device. The method also involves determining a location on, or proximate to, the display where the handheld device was pointed during the identifying. The method also involves sending from the handheld device information derived from the identifying of the one or more images of respective one or more fixed markers. The method also involves triggering action taken by electronic equipment circuitry in response to the handheld device's sending of a signal to indicate the action is desired.

Abstract: A method is described that involves identifying one or more images of respective one or more fixed markers. Each marker is positioned on or proximate to a display. The images appear on a pixilated sensor within a handheld device. The method also involves determining a location on, or proximate to, the display where the handheld device was pointed during the identifying. The method also involves sending from the handheld device information derived from the identifying of the one or more images of respective one or more fixed markers. The method also involves triggering action taken by electronic equipment circuitry in response to the handheld device's sending of a signal to indicate the action is desired.

Abstract: A tunable filter may be utilized to successively tune to different wavelengths. As each wavelength of the wavelength division multiplexed signal is extracted, it may be successively power monitored. Thus, power monitoring may done without requiring separate power monitors for each channel. This results in considerable advantages in some embodiments, including reduced size, reduced complexities in fabrication, and reduced yield issues in some embodiments.

Abstract: A method is described that involves identifying one or more images of respective one or more fixed markers. Each marker is positioned on or proximate to a display. The images appear on a pixilated sensor within a handheld device. The method also involves determining a location on, or proximate to, the display where the handheld device was pointed during the identifying. The method also involves sending from the handheld device information derived from the identifying of the one or more images of respective one or more fixed markers. The method also involves triggering action taken by electronic equipment circuitry in response to the handheld device's sending of a signal to indicate the action is desired.

Abstract: A method is described that involves identifying one or more images of respective one or more fixed markers. Each marker is positioned on or proximate to a display. The images appear on a pixilated sensor within a handheld device. The method also involves determining a location on, or proximate to, the display where the handheld device was pointed during the identifying. The method also involves sending from the handheld device information derived from the identifying of the one or more images of respective one or more fixed markers. The method also involves triggering action taken by electronic equipment circuitry in response to the handheld device's sending of a signal to indicate the action is desired.

Abstract: A method is described that involves detecting one or more images appearing on a pixilated sensor of respective one or more fixed markers. The pixilated sensor is within a handheld device. For each of the images, determining its location on the sensor with the handheld device's electronic circuitry. Translating the images' determined locations into a pointed to location on a display, or proximate to said display, wherein the handheld device transmits information derived from the determining.

Abstract: An item of electronic equipment is described that includes a machine and executable program code. The executable program code is stored on a non volatile memory. The executable program code is to be executed by the machine. The executable program code is to perform a method. The method is in relation to a location on a display, or proximate to the display, that is pointed to by a handheld device. The method includes executing at least one of the following methods: (i) displaying a cursor on said display at said location, said location on said display; (ii) highlighting a menu option on said display at said location, said location on said display; (iii) triggering action taken by said electronic equipment in response to said handheld device's sending of a signal to indicate said action is desired.

Abstract: A radial scanner configured to image the interior of a tube includes, in an embodiment, a housing having a transparent window, a photo-sensing array, a mirror located within the housing and oriented to direct an image around a circumference of an interior surface of the tube outside the transparent window to the photo-sensing array, and a light source configured to illuminate the interior surface of the tube, wherein the photo-sensing array is configured to receive the image around the circumference as a circular line scan. In an embodiment, the radial scanner is deployed as an ingestible capsule. In another embodiment, the radial scanner is deployed as a fiber optic catheter.

Abstract: A planar light wave circuit may be formed with a pair of waveguides arranged in close proximity to one another. At least one of the waveguides may be segmented. Through segmentation, the average mode-field diameter may be adjusted. Controlling the average mode-field diameter enables precise control over the coupling characteristics.

Abstract: According to one embodiment, a system includes a handheld device having a pixelated sensor, an optical filter for passing a predetermined frequency band of radiation to the sensor and a transmitter, an electronic equipment having a display, and at least two spaced-apart markers, where each of which are positioned proximate to the display. The markers provide radiation at the frequency band passed by the optical filter. The handheld device includes a processor coupled to receive image data of the markers from the sensor for computing coordinate data from the image data. The coordinate data requires less data than the image data. The processor is coupled to the transmitter to transmit the coordinate data to the electronic equipment. Other methods and apparatuses are also described.

Abstract: Methods and apparatuses for rapidly tagging and recalling (via direct pointing) metadata from moving or still images are described herein. In one embodiment, data having full descriptions and hyperlinks are tagged to specific objects in moving images and the invisible hyperlinks move dynamically to continually track the associated object. In one embodiment, a pointing device can be used to point to objects in the scene, whether moving or stationary, and by appropriate action such as clicking or activating a button, be able to substantially immediately recall part or all of the metadata content that pertains to the object. Other methods and apparatuses are also described.

Abstract: Methods and apparatuses for a free-space multi-dimensional absolute pointer using a projection marker system are described herein. In one embodiment, a presentation system includes, but is not limited to, a projection-based marker apparatus to project one or more optical spots on a display surface for displaying machine generated content capable of being manipulated via a cursor of a pointing device, a handheld device to wirelessly capture the projected optical spots from the display surface, and a control unit communicatively coupled to the projection-based marker apparatus and the handheld device to determine coordinates of the cursor based on characteristics of the captured light spots. Other methods and apparatuses are also described.

Abstract: Multiple Bragg gratings are fabricated in a single planar lightwave circuit platform. The gratings have nominally identical grating spacing but different center wavelengths, which are produced using controlled photolithographic processes and/or controlled doping to control the effective refractive index of the gratings. The gratings may be spaced closer together than the height of the UV light pattern used to write the gratings.

Abstract: A mounting platform provides support and packaging for one or more fiber Bragg gratings and electronic circuitry (e.g., heaters, coolers, piezoelectric strain providers, temperature and strain sensors, feedback circuitry, control loops), which may be printed on or on the mounting platform, embedded in the mounting platform, or may be an “off-board” chip solution (e.g., the electronic circuitry may be attached to the mounting platform, but not formed on or defined on the mounting platform). The fiber Bragg gratings are held in close proximity to the electronic circuitry, which applies local and global temperature and/or strain variations to the fiber Bragg gratings to, for example, stabilize and/or tune spectral properties of the fiber Bragg gratings so that spatial variations in the fiber Bragg gratings that result from processing and manufacturing fluctuations and tolerances can be compensated for.

Abstract: A projection display system may use a microdisplay that has pixels that are dedicated to only one narrow wavelength band. A suitable optical filter for each primary display color may be formed from a small number of optical layers, taking advantage of both the rounded profile and narrow range of the emission peaks in a typical projection light source. Thus, groups of pixels may be dedicated to each wavelength band of the display. A planarization layer may be coated on dichroic filter elements that are applied to a cover glass to provide the dedicated wavelengths for each pixel. The planarization layer may smooth out any surface irregularities resulting from the deposition of the dichroic layers on the cover glass.

Abstract: An item of electronic equipment is described that includes a machine and executable program code. The executable program code is stored on a non volatile memory. The executable program code is to be executed by the machine. The executable program code is to perform a method. The method is in relation to a location on a display, or proximate to the display, that is pointed to by a handheld device. The method includes executing at least one of the following methods: (i) displaying a cursor on said display at said location, said location on said display; (ii) highlighting a menu option on said display at said location, said location on said display; (iii) triggering action taken by said electronic equipment in response to said handheld device's sending of a signal to indicate said action is desired.

Abstract: A method is described that involves detecting one or more images appearing on a pixilated sensor of respective one or more fixed markers. The pixilated sensor is within a handheld device. For each of the images, determining its location on the sensor with the handheld device's electronic circuitry. Translating the images' determined locations into a pointed to location on a display, or proximate to said display, wherein the handheld device transmits information derived from the determining.

Abstract: A method is described that involves identifying one or more images of respective one or more fixed markers. Each marker is positioned on or proximate to a display. The images appear on a pixilated sensor within a handheld device. The method also involves determining a location on, or proximate to, the display where the handheld device was pointed during the identifying. The method also involves sending from the handheld device information derived from the identifying of the one or more images of respective one or more fixed markers. The method also involves triggering action taken by electronic equipment circuitry in response to the handheld device's sending of a signal to indicate the action is desired.

Abstract: A plurality of channels of a wavelength division multiplexing system may be subjected to dispersion compensation in a fashion which enables tuning of the compensation for each individual wavelength channel. Moreover, the tuning may be done in a space-efficient fashion. The chirped Bragg gratings may be formed, for example, on a planar light circuit. Each grating may be heated to controllably adjust its dispersion compensation, in one embodiment of the present invention.