Abstract: Methods and apparatuses provide a phacoemulsification probe, wherein the probe has a piezoelectric actuator coupled with a needle configured to be inserted into an eye of a patient; and a processor configured to sequentially drive the actuator electrically in a range of frequencies, to measure a respective electrical power input to the actuator at each of the frequencies in the range, to identify a frequency in the range of frequencies wherein a metric of the electrical power input is a maximum, and to estimate from the identified frequency a mechanical resonant frequency of the actuator, and to drive the actuator electrically at the mechanical resonant frequency.

Abstract: Apparatus, including a housing that is configured to be mounted in proximity to a human eye. The apparatus further includes optics that is retained by the housing and that is configured to focus optical radiation from a scene to an image viewable by the human eye. The apparatus also includes a tunable wavelength filter that is retained by the housing and that is configured to sequentially filter the optical radiation from the scene by a first wavelength and by a second wavelength different from the first wavelength.

Abstract: Apparatus, including a housing that is configured to be mounted in proximity to a human eye. The apparatus further includes optics that is retained by the housing and that is configured to focus optical radiation from a scene to an image viewable by the human eye. The apparatus also includes a tunable wavelength filter that is retained by the housing and that is configured to sequentially filter the optical radiation from the scene by a first wavelength and by a second wavelength different from the first wavelength.

Abstract: A method for sending a secure message within a communications network which operates a short message service (SMS) according to an SMS protocol. The method consists of transmitting an SMS message of a predefined type from a mobile transceiver over the network, receiving the SMS message at an SMS receiver, and transmitting an authorization request, responsive to the SMS message and the predefined type, from the SMS receiver to the mobile transceiver. The method further includes receiving the authorization request at the mobile transceiver, transmitting a pre-determined confirmation code from the mobile transceiver responsive to the authorization request, and forwarding the SMS message from the SMS receiver to a message destination responsive to receipt of the confirmation code at the SMS receiver.

Abstract: Apparatus for preventing electric charge accumulating on a body of a vehicle having a wheel for traveling on a surface, the apparatus including an insulator, which is adapted to be coupled to the body in a vicinity of the wheel. The apparatus further includes a conductor, having an upper end and a lower end, the conductor being coupled to the insulator so that when the insulator is coupled to the body, the upper end of the conductor is held in proximity to the wheel, while the lower end of the conductor is in proximity to the surface on which the wheel travels, and the conductor is electrically insulated by the insulator from the body.

Abstract: A method for sending a secure message within a communications network which operates a short message service (SMS) according to an SMS protocol. The method consists of transmitting an SMS message of a predefined type from a mobile transceiver over the network, receiving the SMS message at an SMS receiver, and transmitting an authorization request, responsive to the SMS message and the predefined type, from the SMS receiver to the mobile transceiver. The method further includes receiving the authorization request at the mobile transceiver, transmitting a pre-determined confirmation code from the mobile transceiver responsive to the authorization request, and forwarding the SMS message from the SMS receiver to a message destination responsive to receipt of the confirmation code at the SMS receiver.

Abstract: Apparatus for preventing electric charge accumulating on a body of a vehicle having a wheel for traveling on a surface, the apparatus including an insulator, which is adapted to be coupled to the body in a vicinity of the wheel. The apparatus further includes a conductor, having an upper end and a lower end, the conductor being coupled to the insulator so that when the insulator is coupled to the body, the upper end of the conductor is held in proximity to the wheel, while the lower end of the conductor is in proximity to the surface on which the wheel travels, and the conductor is electrically insulated by the insulator from the body.

Abstract: Apparatus for producing a panoramic image of a scene, including an image capture device, which is adapted to capture a plurality of sub-images of the scene at a respective plurality of orientations of the device. The apparatus further includes a direction indicator, which is coupled to the image capture device so as to determine the orientation of the device and to indicate the orientations at which the sub-images should be captured so that the plurality of sub-images can be stitched together to form the panoramic image of the scene. The apparatus is able to produce a panoramic image of a horizontal or of a vertical scene.