16002 results about "Signal on" patented technology

An apparatus and a method of operating the apparatus. The apparatus includes a driver circuit and a memory circuit. The driver circuit may be configured to precharge a hitline in response to a predetermined voltage level and a control signal and sense a result of a compare operation based upon a hitline signal on the hitline. The driver circuit generally precharges the hitline to a voltage level lower than the predetermined voltage level and senses the result of the compare operation using the full predetermined voltage level. The memory circuit may be configured to perform the compare operation using the hitline.

A computer software application for end-to-end management of the delivery of IP-configured integrated multimedia signals (e.g., TV, video, Website, etc.), on an interactive basis, to a subscriber device (being a personal computer (PC) and monitor coupled thereto or television/set-top box combination). The system manager comprises an interactive program guide (IPG) component configured for providing to the subscriber an interactive program guide (IPG) permitting selection of the multimedia signals by the subscriber and a subscriber device component associated with the subscriber device and configured for receiving instructions from the subscriber. The subscriber device includes a decoder configured for converting the selected IP multicast format signals into a format for display on PC monitor or television. A PC component is configured for displaying the converted multimedia signals on the PC monitor in the form of a player window and for displaying a remote controller GUI on the monitor, the remote controller GUI being a model of a hand-held remote controller and controllable by the subscriber for controlling the selection of signals from the IPG. The interactive program guide provides drop down box selection and scroll bar GUI features.

A distributed antenna system (DAS) includes a multiple-input and multiple-output (“MIMO”) base station configured to output at least a first and second signal, and a hybrid coupler coupled thereto, the coupler configured to receive the first and second signal from the MIMO base station on respective first and second ports and provide an output signal on at least one output port, the output signal including at least a portion of the first signal and at least a portion of the second signal. The DAS further includes a master unit communicating with the coupler and configured to receive at least the output signal, and at least one remote unit communicating with the master unit and configured to communicate the output signal to a device.

A wireless communication system can comprise two or more antennas that interfere with one another via free space coupling, surface wave crosstalk, dielectric leakage, or other interference effect. The interference effect can produce an interference signal on one of the antennas. A cancellation device can suppress antenna interference by generating an estimate of the interference signal and subtracting the estimate from the interference signal. The cancellation device can generate the estimate based on sampling signals on an antenna that generates the interference or on an antenna that receives the interference. The cancellation device can comprise a model of the crosstalk effect. Transmitting test signals on the communication system can define or refine the model.

A method and device which dynamically detects, tracks and filters interfering signals with sufficient speed (i.e. within one IS-95 CDMA data frame period, or 20ms and fidelity to eliminate or greatly reduce the deleterious effects of narrow band interferor signals on a CDMA link. When inserted in an RF signal path an Adaptive Notch Filter (ANF) detects narrow band interferors above a threshold level within the CDMA signal. Detection is accomplished by continuous scanning of a preset excision band, e.g. a specified narrow band associated with an AMPS system. Detected interferors are then automatically acquired and suppressed. This is achieved by electronically placing a rejection notch at the frequency of the interferors. Multiple notch filters may be used to simultaneously suppress multiple interferors. In the absence of interferors a bypass mode is selected allowing the RF signal to bypass the notch. Upon detection of an interferor, a switch is made to a suppression mode where the interferor is steered through a first notch section and suppressed. Alternatively, an external control line may be used to select the bypass mode so that the signal is allowed to pass the notch section, regardless of interferer content.

Provided are systems and techniques for recording video in a mobile environment, in which camera means mounted at a first location in a vehicle generates a video signal based upon an observed scene. Video recording means mounted at a second location in the vehicle inputs and records the video signal on a tangible medium. General-purpose computing means, mounted at a third location in the vehicle and running a general operating system and user-installed application programs, communicates with the video recording means, is loaded with software to provide a user interface to control recording and playback by the video recording means, and includes means for wireless communication with a central base station.

Methods and apparatus for efficient two-stage paging wireless communications systems are described. Wireless terminals are assigned to paging groups. A few first paging message information bits are modulated (using non-coherent modulation) into a first paging signal and communicated from a base station to wireless terminals. WTs wake-up, receive the first paging signal and quickly ascertain whether its paging group should expect a second paging signal, if so, the WT is operated to receive the second paging signal; otherwise, the WT goes back to sleep conserving power. The base station modulates (using coherent modulation) a number of second message information bits into a second paging signal and transmits the signal to WTs. From the information in first and second paging signals, a WT can determine that it is the paged WT and process the paging instructions. The intended paged WT can transmit an acknowledgement signal on a dedicated uplink resource.

The present invention provides a method and device for displaying a plurality of video signals on one single display. According to embodiments of the present invention a plurality of display systems can be replaced by one display system being fully backwards compatible without the need to change any software or hardware components such as application software, graphical boards, . . . The present invention can also guarantee that even though a plurality of displays are being replaced by one single display still individual characteristics of those plurality of displays are being retained by the new display.

A method for selecting an operating mode for a frame-based communications network consisting of a plurality of stations attached to a transmission medium. The plurality of stations include both a first type station and a second type station. The first type station is capable of transmitting and receiving first protocol frames in accordance with a first protocol. The second type station is capable of transmitting and receiving both first protocol frames and second protocol frames in accordance with a second protocol. The first protocol and the second protocol each use different signals on the transmission medium. The first type station is not capable of reliably detecting second protocol frames. The first protocol has a first protocol frame format containing at least two reserved bits in a first protocol frame header which are ignored in received frames by first type stations and always sent with a same fixed value by first type stations. The first protocol frame format is redefined to provide an updated first protocol frame header wherein two reserved bits in the first protocol frame header are allocated as a mode selection indicator field in the updated first protocol frame header. The mode selection indicator field has meaning for second type stations.

Disclosed are an automatic charging apparatus of an autonomous mobile robot and an automatic charging method using the same in that a moving robot can automatically detect infrared signals emitted from a charging station and can automatically induce charging station so as to automatically charge a battery of the robot, whereby improving convenience thereof. The automatic charging apparatus of the autonomous mobile robot, comprises a charging station having connecting terminals for charging the battery and an infrared signal generator for emitting infrared signals on a position information thereof; and a moving robot having an infrared receiving apparatus for receiving the infrared signals from the infrared signal generator in a cast that a remnant capacity of the battery is insufficient or a charging order is inputted, a microcomputer for controlling a traveling of the moving robot by using a detected position information of the charging station through the infrared signals received from the infrared receiving apparatus, and charging terminals for charging the battery with electricity through the contact with the connecting terminal.

A high frequency signal transmission apparatus includes a transmitter for transmitting received signals from a signal source as a modulated signal on a high frequency 900 MHz carrier to a remote receiver. The remote receiver converts the high frequency carrier in at least one conversion step to a lower frequency carrier signal. The lower frequency carrier signal carrying the modulated signal is then converted to another carrier signal and retransmitted as a modulated second signal to another remote receiver capable of demodulating the signal and broadcasting the audio sounds or video images. The oscillators in the transmitter and receiver are selectable to operate at discrete frequencies. Automatic fine tuning control is provided in the receiver to accommodate drift of the oscillator in the receiver. A recorder is coupled to the receiver for temporarily storing a demodulated first signal from the transmitter and then outputting the stored signals to a second transmitter for retransmission to a remote output device.

A touch screen system includes a capacitive touch screen (1) including a plurality of row conductors (7-1,2 . . . n) and a column conductor (5-1). A plurality of cotemporaneous orthogonal excitation signals (S₁(t), S₂(t) . . . S_n(t)) are simultaneously driven onto the row conductors, respectively. The capacitively coupled signals on the column conductor may be influenced by a touch (10) on the capacitive touch screen. Receiver circuitry (50) includes a sense amplifier (21-1) coupled to generate an amplifier output signal (r₁(t)) in response to signals capacitively coupled onto the column conductor. WHT-based circuitry (35) determines amounts of signal contribution capacitively coupled by each of the excitation signals, respectively, to the amplifier output signal.

A physical layer module (PHY) of a network device includes a control module and a cable-test module. The control module selectively generates a cable-test enable signal to test a cable including four pairs of twisted wire. The cable-test module tests the cable based on the cable-test enable signal. The cable-test module transmits test signals on the four pairs at a first time and receives return signals. The cable-test module determines that the cable is not faulty when the return signals received on first and second pairs of the four pairs have an amplitude less than a first predetermined amplitude, and when the return signals received on third and fourth pairs of the four pairs have an amplitude greater than a second predetermined amplitude and are received substantially contemporaneously.

A method and apparatus for treating patients suffering from involuntary movement disorders (including epilepsy) by stimulating a selected cranial nerve of the patient with an electrical signal applied to induce a signal at brain by applying an electrical signal at the nerve to ameliorate the disorder and by applying a neural conduction block at the nerve selected to at least partially block nerve impulses on said nerve at a blocking site and reduce adverse effects of said signal on an organ.

A control system for allowing remote control of a load. The control system includes a command controller for running a control program that provides a command signal. The command controller has a first wireless interface for transmitting the command signal on a first wireless network. A remote controller has a second wireless interface for receiving the command signals from the command controller via the first wireless network. The remote controller includes a controller for adapting the received command signals for communication on a second wireless network. The remote controller has a third wireless interface for transmitting the adapted command signals via a second wireless network to the load.

A method for identifying and localizing a reentrant circuit isthmus in a heart of a subject during sinus rhythm, including: a) receiving electrogram signals from the heart during sinus rhythm via electrodes; b) storing the electrogram signals; c) creating a map based on the electrogram signals; d) finding a center reference activation location on the map; e) defining measurement vectors originating from the center reference activation location; f) selecting from the measurement vectors a primary axis vector indicating a location of the reentrant circuit isthmus in the heart; g) finding threshold points of electrogram signals on the map; h) connecting the threshold points to form a polygon indicating a shape of the reentrant circuit isthmus in the heart.

Wireless communications for frequency-selective fading channels is realized by employing a system including orthogonal frequency division multiplexing (OFDM) in combination with an at least two antenna transmit diversity arrangement. Specifically, OFDM converts a multipath channel into a plurality of narrowband subchannels each having flat fading. Then, the signals on the same frequency subchannels of the at least two antennas are grouped together. Considering a first frequency subchannel, during a first OFDM time interval, a first signal and a second signal are transmitted on the first frequency subchannel from a first antenna (0) and from a second antenna (1), respectively. During a second OFDM time interval, a reverse sign (−) complex conjugate of the second signal and a complex conjugate of the first signal are transmitted from the first antenna and the second antenna, respectively. In a specific embodiment of the invention, reduced complexity in the implementation is realized by a reverse order complex conjugate and a reverse order, reverse sign (−) complex conjugate and judicious selection of the processed data signals in order to transmit the appropriate ones of the signals during the first and second OFDM intervals. Again, if the channel remains constant over the two OFDM intervals, diversity combination is realized for each frequency subchannel. In another embodiment of the invention, antenna-group hopping is employed in conjunction with pairing in time of the OFDM frequency subchannel signals to realize increased transmit diversity without rate loss.