Abstract: An integrated waveguide including a dielectric structure configured to receive a first electromagnetic field distribution via a first major surface and having a second major surface, wherein the first electromagnetic field distribution produces a second electromagnetic field distribution within the dielectric structure. The waveguide further includes at least one metallic element disposed in the dielectric structure between the first major surface and the second major surface, the at least one metallic element structured and positioned to effect the second electromagnetic field distribution to increase an amount of the second electromagnetic field distribution that is incident upon a selected region of the second major surface.

Abstract: An identification card includes a bio-sensor, a memory, and a microprocessor. The bio-sensor is configured to collect a signature biometric characteristic from a verified user. The memory is configured to store the signature biometric characteristic. The microprocessor is coupled to the bio-sensor and the memory. The microprocessor is configured to retrieve the signature biometric characteristic from the memory and to perform a comparison between the signature biometric characteristic and a sample biometric characteristic.

Abstract: A method of focusing a digital camera module with an image sensor including capturing an image of a test target with the digital camera module, determining a focus quality of the image with the image sensor, outputting a signal related to the focus quality of the image from the digital camera module to a focusing station external to the digital camera module, and determining whether a position of a lens from the image sensor within the digital camera module should be altered to improve a focus quality of subsequently captured images.

Abstract: An optical navigation system, e.g. optical mouse, determines optical navigation quality by examining some or all of the photosensors of a frame or monitoring intermediate or final results of the motion estimation system. The optical navigation quality is then used to determine the navigation output produced by the optical navigation system.

Abstract: An imaging system and method are provided that use imaging information relating to positions of one or more retroreflectors attached to one or more surfaces of an object of interest to determine the shape and/or displacement of the surface or surfaces on which the retroreflector or retroreflectors are located. A variety of types of information may then be ascertained based on the determination as to the shape and/or displacement of the surface of the object, such as the value of some physiological parameter of a patient, internal and external pressure of an object, acoustical vibrations sensed by a microphone, positions of fingertips on a keyboard, etc.

Abstract: Eye detection is used as the basis for providing power management or other variations of operational parameters of a controlled device. The system includes an imager and eye detection processing which cooperate to detect light received from a person's eye. The eye detection processing generates an output that can be used for determinations regarding presence of one or more persons or presence of a specific person. This output is used as the basis for switching the controlled device between at least two power consumption states. Eye detection may also be used to allow a person to actively adjust operational conditions of the controlled device, since unnatural eye blinking patterns may be associated with particular commands.

Abstract: A detection system for monitoring a subject remains outside the normal field of view of the subject by using a wavelength selective optical member. In one application, an eye of a driver is repeatedly or continuously illuminated and imaged without effect on the field of view of the driver. A dichroic mirror may be used to provide the wavelength selectivity. For the application in which the system is used for a motor vehicle, such as an automobile, the dichroic mirror may be achieved by coating a portion or all of the windshield so as to pass visible light, while reflecting detection light. Other applications of the detection system include monitoring a subject engaged in a person-to-person interaction, wherein a dichroic mirror is defined by a divider between the two persons.

Abstract: A sensor system is mounted on a host for recording motion of the host over time. The sensor system includes a sensor pad having a surface with a positive slope away from a center of the surface, and a mass resting on the sensor pad. The sensor pad includes an array of pressure sensors for determining the location of the mass on the sensor pad. The sensor system can further include a memory and a controller coupled to the memory and the sensor pad. The controller can determine the motion of the host from the location of the mass and record the motion in the memory.