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61results about How to "Easily signal" patented technology

Image reject mixer, circuit, and method for image rejection

To reduce the impact of image frequencies generated by mixing an incident carrier signal down to a relatively low intermediate frequency signal used in subsequent signal processing, a mixing frequency is selected such that the generated intermediate frequency signal has a frequency offset relative to DC that is substantially that of a single channel spacing between frequency adjacent incident carrier signals, as shown in FIG. 2. Image rejection is further improved through the integration of a current-driven polyphase filter (36) directly between an input stage (Q1 to Q4) and a mixer stage (Q5 to Q12) of an image reject mixer (FIG. 4) such as to mitigate quadrature divergence between separate in-phase and quadrature paths within the image reject mixer.
Owner:RPX CLEARINGHOUSE

Antenna module for receiving signal having broadcasting frequency

The present invention relates to an antenna module for receiving a signal having broadcasting frequency in a mobile terminal. The antenna module includes: an antenna element having a length shorter than a ½ wavelength of a receiving frequency; and an active impedance matching unit connected to one end of the antenna element for matching impedance of the antenna element to a predetermined load impedance.
Owner:ACE TECH

Tabletop signaling device for restaurants

The tabletop signaling device for restaurants comprises a tabletop signaling device for visually signaling at least one of a plurality of messages to a waiter or waitress quickly and wordlessly, without requiring the service provider to physically respond and inquire to the requested service. The signaling device includes a plurality of light sources and switches for illuminating vertically spaced panels disposed on the front of the signaling device, each panel having predetermined and distinct indicia disposed thereon for signaling a specific message. A table available button disposed on the tabletop signaling device operates to illuminate a corresponding lamp disposed on a remote display panel for signaling the availability of the table. The lamps on the remote display panel may be arranged according to the location of the tables on the floor of the restaurant.
Owner:ALEXANDER KARIN K

Method for producing X-ray images

The invention relates to a method for producing x-ray images, by which successive x-ray images are recorded using a first semiconductor detector arranged in a first plane and a second semiconductor detector arranged in a second plane. For the purpose of correcting the x-ray images it is proposed that dark images are recorded intermittently, and these are subtracted from the x-ray images subsequently generated.
Owner:SIEMENS HEALTHCARE GMBH

Optical transmission system for radio access and high frequency optical transmitter

Modulators respectively modulate baseband signals into IF signals having different frequencies. A multiplexer multiplexes the IF signals. An electrical-optical converter intensity modulates the multiplexed IF signals into optical signals. A local oscillation signal source outputs a predetermined local oscillation signal. An external modulator intensity-modulates the optical signal using the local oscillation signal. An optical branching portion branches the intensity-modulated optical signal and respectively outputs branched optical signals to radio base stations. An optical-electrical converter converts the optical signal into an electric signal, to obtain an RF signal by frequency-converting the IF signal. An antenna only transmits a component having a desired radio frequency extracted in a band filter from the RF signal to a subscriber terminal. Frequency conversion from the IF signal to the RF signal is thus optically performed, whereby the frequency or electrical-optical converter is shared among the radio base stations.
Owner:PANASONIC CORP

Recording and/or reproduction apparatus, file management method and providing medium

The invention provides a file system which can record and / or record AV signals simply onto and / or from a disc in a home. The file system is incorporated in a recording and / or reproduction apparatus which uses a disc type recording medium, and records management information for management of a file of AV data to at least two locations of a logical volume.
Owner:SONY CORP

Sun visor with display of traffic light

A signal display sun visor may include a camera photographing an object in front of vehicle; a folding detector sensing whether or not the sun visor is opened; a traffic light detector determining a current location of the vehicle by receiving a GPS signal and whether a traffic light exists in front of the vehicle based on the current location by using map information; an image processor determining a traffic light from a digital image by processing and analyzing the digital image and a signal of the determined traffic light; a signal display unit displaying the signal of the traffic light determined by the image processor; and a controller controlling operation of the respective constituent elements, operating when the sun visor is opened at greater than or equal to a predetermined angle, and controlling the camera to photograph a traffic light when the traffic light exists in front of the vehicle.
Owner:HYUNDAI MOTOR CO LTD +1
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