Abstract: There is disclosed a system configured to receive one or more radio frequency signals comprising a UHF frequency range comprising a plurality of UHF channels. The system comprises: one or more corresponding analog to digital converters, configured to convert the corresponding RF signal after which a digital multi-switch module and a corresponding plurality of digital channelizers generate modified digital RF signals preferably comprising a digital signal comprising at least one selected, frequency translated and leveled UHF channel.

Abstract: A folding stroller having a frame that can be arranged in at least a first configuration and a second configuration, the frame including a handgrip fixedly connected to an upper joint, a lower joint pivotally connected to the upper joint, the lower joint being fixedly connected to a front tube, a rear joint pivotally connected to the lower joint, the rear joint being fixedly connected to a rear tube, and a joint connecting rod connected to the lower joint, the rear joint, and the upper joint, wherein a distance between the upper joint and the rear joint is larger than a predefined threshold while the frame is in the first configuration, while the frame is in the second configuration, and while the frame is transitioning between the first configuration and the second configuration.

Abstract: A collapsible stroller comprising a frame and a reversible seat (5) comprising an armrest portion (5.5) is provided. The reversible seat (5) is mountable via an attachment point on the stroller frame in either a forward or rearward orientation with respect to the stroller frame, and in such a way that the attachment point can be moved relative to the stroller frame for collapse of the reversible seat (5) along with the stroller frame, irrespective of the reversible seat's orientation. An associated reversible seat structure is also disclosed.

Abstract: An apparatus provides electrical power to a ship in port. A first interface interconnects the apparatus with a power grid of the port receiving an input power signal. A second interface interconnects the apparatus with an electrical power grid of the ship to provide an output power signal. Power conversion circuitry receives the input power signal at a first voltage level and generates the output power signal at a selected voltage level and at a selected frequency level responsive to the input power signal. Power control circuitry configures the operation of the power conversion circuitry to generate the output power signal at the selected voltage level and the selected frequency level.

Abstract: A collapsible stroller, including a handle tube, a front leg tube with a front wheel assembly, a rear leg tube with a rear wheel assembly, a joint assembly connecting the handle tube to the front leg tube and the rear leg tube, and a reversible seat reversibly mounted on the joint assembly, characterized in that the reversible seat is provided with an engaging projection, and the joint assembly is provided with more than one engaging recess rotatable with a stroller frame, and that the stroller frame can be collapsed after the engaging projection of the reversible seat is inserted into the engaging recess, and the rotation of the stroller frame brings the reversible seat to rotate therewith, so that the reversible seat is collapsed along with the stroller frame.

Abstract: A system for combining electrical power from two or more power sources includes first and second conversion stages (120) which receive input power from two or more power sources (110), and produce different output voltages, including DC outputs. The input power sources (110) may have different voltage, frequency, and phase characteristics, and may be DC voltages. Various embodiments are disclosed for converting and combining the input power sources (110) to provide at least a DC output voltage and an optional AC output voltage which may have different voltage, frequency, and phase characteristics than the input power sources (110). In another embodiment, a method of power conversion is disclosed.

Abstract: An apparatus provides electrical power to a ship in port. A first interface interconnects the apparatus with a power grid of the port receiving an input power signal. A second interface interconnects the apparatus with an electrical power grid of the ship to provide an output power signal. Power conversion circuitry receives the input power signal at a first voltage level and generates the output power signal at a selected voltage level and at a selected frequency level responsive to the input power signal. Power control circuitry configures the operation of the power conversion circuitry to generate the output power signal at the selected voltage level and the selected frequency level.

Abstract: An electrical receptacle includes at least one motion sensor for detecting movement of a blade of an electrical plug in the receptacle, an extraction detector operatively connected to the motion sensor for generating a signal in response to movement of the blade at a predetermined rate, a position detector operatively connected to the motion sensor for determining the position of the blade in the receptacle, a switch operatively connected to the extraction detector and the position detector for de-energizing the receptacle when the extraction detector detects extraction of the blade from the receptacle at a rate equal to or greater than the predetermined rate and wherein the extraction detector and switch are operative to de-energize the receptacle in less than six milliseconds when the extraction detector detects extraction of the blade from the receptacle at a rate equal to or greater than the predetermined rate.

Abstract: TV signal distribution system which includes a programmable filter device which receives the TV signal and is connected to the end-user TV via an interface device, the interconnections between the devices being made by coaxial cables and a programming unit being connected via the interface device to the coaxial network. Method for programming a programmable filter device in a TV signal distribution system, including the steps of providing an interface device in the coaxial network, connecting a programming unit to the interface device and exchanging communication signals between the programming unit and the programmable filter device over the interface device and the coaxial network, for programming the filter circuit device.

Abstract: TV signal distribution filter device which includes at least one tuneable band-pass filter circuit, each tuneable filter circuit having a signal input for receiving a TV signal, a signal output for delivering a filtered TV signal, and a plurality of components connected in a predetermined configuration between the signal input and the signal output and together being provided for filtering the received TV signal to the filtered TV signal, said plurality of components including at least a first inductor and a second inductor, each accompanied by a tuneable capacitive component and connected to a voltage node which is provided for receiving a tuning voltage for tuning the tuneable capacitive component and thereby setting a filtering parameter of the tuneable filter circuit, the first and second inductors being planar inductors which are mechanically fixed and embedded in a dielectric environment and are electro-magnetically coupled with each other.

Abstract: An electrical receptacle includes at least one motion sensor for detecting movement of a blade of an electrical plug in the receptacle, an extraction detector operatively connected to the motion sensor for generating a signal in response to movement of the blade at a predetermined rate, a position detector operatively connected to the motion sensor for determining the position of the blade in the receptacle, a switch operatively connected to the extraction detector and the position detector for de-energizing the receptacle when the extraction detector detects extraction of the blade from the receptacle at a rate equal to or greater than the predetermined rate and wherein the extraction detector and switch are operative to de-energize the receptacle in less than six milliseconds when the extraction detector detects extraction of the blade from the receptacle at a rate equal to or greater than the predetermined rate.

Abstract: An electrical receptacle includes at least one motion sensor for detecting movement of a blade of an electrical plug in the receptacle, an extraction detector operatively connected to the motion sensor for generating a signal in response to movement of the blade at a predetermined rate, a position detector operatively connected to the motion sensor for determining the position of the blade in the receptacle, a switch operatively connected to the extraction detector and the position detector for de-energizing the receptacle when the extraction detector detects extraction of the blade from the receptacle at a rate equal to or greater than the predetermined and wherein the extraction detector and switch are operative to de-energize the receptacle in less than six milliseconds when the extraction detector detects extraction of the blade from the receptacle at a rate equal to or greater than the predetermined rate.

Abstract: An electrical receptacle includes at least one motion sensor for detecting movement of a blade of an electrical plug in the receptacle, an extraction detector operatively connected to the motion sensor for generating a signal in response to movement of the blade at a predetermined rate, a position detector operatively connected to the motion sensor for determining the position of the blade in the receptacle, a switch operatively connected to the extraction detector and the position detector for de-energizing the receptacle when the extraction detector detects extraction of the blade from the receptacle at a rate equal to or greater than the predetermined and wherein the extraction detector and switch are operative to de-energize the receptacle in less than six milliseconds when the extraction detector detects extraction of the blade from the receptacle at a rate equal to or greater than the predetermined rate.

Abstract: A system and method for characterizing the contents of an input audio signal and for suppressing noise components of the input audio signal are described. The audio signal is divided into a number of frequency domain input signals. Each frequency domain input signal can be processed separately to determine its intensity change, modulation frequency, and time duration characteristics to characterize the frequency domain input signal as containing a desirable signal or as a type of noise. An index signal is calculated based on a combination of the determined characteristics and signals identified as noise are suppressed in comparison to signals identified as desirable to produce a set of frequency domain output signals with reduced noise. The frequency domain output signals are combined to provide an output audio signal corresponding to the input audio signal but having suppressed noise components and comparatively enhanced desirable signal components.

Abstract: An electronic filter device for the reception of TV-signals, comprising a plurality of frequency determining elements settable by means of an analog setting voltage, a memory (2) for storing digital values representative of the analog setting voltages and conversion circuitry (11-14) for converting the digital values into the analog setting voltages. The conversion circuitry comprises a first part (11-13) for generating a digitally modulated signal for each digital value, the digitally modulated signal having a modulated characteristic representative of the digital value, and a second part (14) for converting each of the digitally modulated signals into the analog setting voltages.

Abstract: A system and method for adaptively removing feedback in audio systems and, more particularly, hearing aid systems. The audio system comprises an analysis unit, for receiving an input signal and providing N bandpass input signals, and an adaptive feedback cancellation unit for removing a feedback condition in one or more of the N bandpass input signals. The adaptive feedback cancellation unit comprises N sub-units with at least one of the sub-units including: (i) a feedback detector for indicating the presence of the feedback condition in one of the bandpass input signals, (ii) an adaptive feedback canceller for providing an adaptive gain modification factor for adjusting gain when the feedback condition is detected within one of the bandpass input signals, and (iii) a multiplier coupled to the adaptive feedback canceller and the analysis unit for providing a bandpass output signal based on one of the bandpass input signals and the corresponding adaptive gain modification factor.

Abstract: A hearing aid system and method for processing one of an input magnetic signal, having magnetic information, and at least one acoustic input signal having acoustic information. The system comprises an acoustic sensor for providing the input acoustic signal, a magnetic sensor for providing the input magnetic signal, and a magnetic signal detector for selecting one of the input acoustic signal and the input magnetic signal as an information signal. The magnetic signal detector selects the input magnetic signal as the information signal when a magnetic signal detection process has at least partially analyzed the input magnetic signal to determine if audio information may be present. The hearing aid system further comprises a hearing aid module for processing the information signal and providing an output signal to a user of the hearing aid system.

Abstract: A hearing aid that is capable of automatically switching between a full-function mode and a sleep mode depending on the location of the hearing aid. The hearing aid comprises a hearing aid module for processing an input signal and generating a compensated output signal and, a location sensor module for providing a location information signal to indicate one of an in-the-ear case and an out-of-the-ear case. The hearing aid module automatically switches to the full-function mode when the location information signal indicates the in-the-ear case and the hearing aid module automatically switches to the sleep mode when the location information signal indicates the out-of-the-ear case.

Abstract: An improved hearing aid, and processes for adaptively processing signals therein to improve the perception of desired sounds by a user thereof. In one broad aspect, the present invention relates to a process in which one or more signal processing methods are applied to frequency band signals derived from an input digital signal. The level of each frequency band signal is computed and compared to at least one plurality of threshold values to determine which signal processing schemes are to be applied. In one embodiment of the invention, each plurality of threshold values to which levels of the frequency band signals are compared, is derived from a speech-shaped spectrum. Additional measures such as amplitude modulation or a signal index may also be employed and compared to corresponding threshold values in the determination.

Abstract: An improved hearing aid, and processes for adaptively processing signals therein to improve the perception of desired sounds by a user thereof. In one broad aspect, the present invention relates to a process in which one or more signal processing methods are applied to frequency band signals derived from an input digital signal. The level of each frequency band signal is computed and compared to at least one plurality of threshold values to determine which signal processing schemes are to be applied. In one embodiment of the invention, each plurality of threshold values to which levels of the frequency band signals are compared, is derived from a speech-shaped spectrum. Additional measures such as amplitude modulation or a signal index may also be employed and compared to corresponding threshold values in the determination.