674 results about "Signal Conditioner" patented technology

A signal conditioner (SC) and method for performing communications via a shared transport medium between a base transceiver station (BTS) and a remote antenna entity (RAE). A first SC is connected to the BTS and a second SC is connected to the RAE. Each SC interfaces to the transport medium. The first SC receives an RF signal representing a combined digital signal (CDS) from the BTS. The first SC recovers and conditions the CDS, and then transmits the conditioned CDS to the second SC via the transport medium. The second SC receives the conditioned CDS, recovers the CDS, produces an RF signal representing the CDS, and transmits this RF signal to the RAE. The RAE sends this RF signal to an antenna of the RAE for transmission of this RF signal via the antenna. First SC and second SC also facilitate communication of a CDS from RAE to BTS.

System and method for measurement, DAQ, and control operations which uses small form-factor measurement modules or cartridges with a re-configurable carrier unit, sensors, and a computer system to provide modular, efficient, cost-effective measurement solutions. The measurement module includes measurement circuitry, e.g., signal conditioner and/or signal conversion circuitry, and interface circuitry for communicating with the carrier unit. The module communicates interface information to the carrier unit, which informs the computer system how to program or configure a functional unit on the carrier unit to implement the communicated interface, or sends the information directly to the computer system. The computer system programs the carrier unit with the interface, and the programmed carrier unit and measurement module together function as a DAQ, measurement, and/or control device. The carrier unit may receive multiple cartridges, each having a respective interface protocol, where the carrier unit is configurable to support the respective protocols sequentially and/or in parallel.

A self contained patient sensing and monitoring system is provided for sensing and monitoring the presence, absence, and movement of the patient. Embodiments of the present invention provide a system conformable to a patient support surface, systems that are self contained, systems that are operationally unobtrusive, and programmable systems. Embodiments of the present invention comprise a container, a sensor configured within the container, and a control unit responsive to the sensor and configured within the container, wherein the container at least substantially encompassing the sensor and the control unit and wherein the control unit is conformable to the patient support surface. Some embodiments of the present invention comprise a container, a sensor configured within the container, and a control unit conformable to a patient support surface and configured within the container, wherein said control unit is responsive to the sensor. Embodiments of the present invention may also comprise a sensor, a signal conditioner responsive to the sensor, a processor configured to comprise instruction and data and to which the signal conditioner is configured to provide signals generated by the sensor, at least one storage media, wherein the instructions and data are stored on the at least one storage media, and at least one input connection capable of providing programmable input to the storage media and the processor. Methods are also disclosed for sensing and monitoring the presence, absence, and movement of a patient. The inventive concept can be used in various applications, such as a bed, mattress, chair, or wheelchair, to achieve the monitoring of the presence, absence, and movement of a patient.

A signal conditioner (SC) and method for communicating via a shared transport medium (STM) between a BTS and remote antenna entity (RAE). A first SC connects to the BTS and a second SC connects to the RAE. Each SC connects to a cable modem or BPL modem that interfaces to the STM. The first SC receives an RF signal carrying an analog baseband signal (ABS) representing digital signals for multiple communication channels. The first SC generates a CDS based on power level measurements of the ABS, and then transmits the CDS to the second SC via the STM. The second SC recovers the CDS, converts the CDS to another ABS, generates an RF signal carrying the other ABS, and transmits this RF signal to the RAE for transmission away from the RAE. The first SC and second SC also facilitate communication of a CDS from the RAE to BTS.

A distributed real-time wireless neural interface including a reader and an array of distinct recording devices. The reader outputs and receives radio-frequency signals. The array of distinct recording devices include a wireless section and a sensor section. The wireless section includes an rf power converter, an antenna, a regulator, and a modulator. The rf power converter converts radio frequency signals into power signals. The antenna receives the radio-frequency signals output by the reader and provides the radio-frequency signals to the rf power converter wherein the rf power converter converts such radio-frequency signals to power signals. The regulator receives the power signals and regulates such power signals to provide stable power signals. The modulator receives the power signals and is in communication with the antenna for utilizing the antenna to communicate with the reader. The sensor section receives the stable power signals. The sensor section is adapted to detect neural activity and provide output signals containing information indicative of such neural activity to the modulator of the wireless section whereby the modulator communicates the information in the output signals to the reader.

The invention discloses a device for testing explosion, spreading and explosion suppression characteristics of inflammable gas and dust, which comprises an explosion test pipeline, a gas distribution system and a powder spraying system communicated with the explosion test pipeline respectively, an ignition system for igniting the inflammable gas or dust introduced into the explosion test pipeline, a data test acquisition system, and a host computer connected with the data test acquisition system, wherein the data test acquisition system comprises a sensor group distributed on the explosion test pipeline, a signal conditioner and a dynamic data acquisition analysis system. The device has the advantages of reasonable design, simple and convenient operation and use, more test functions and good test effects, and can effectively solve various practical problems of the prior experimental devices.

An automated transaction machine includes apparatus for distinguishing between single sheets and multiple sheets in a sheet path. The apparatus includes radiation emitters (14, 34) and radiation detectors (20, 40, 42). The radiation emitters are operated to emit radiation at periodic intervals. Signal conditioners (50) receive signals from the radiation detectors and generate outputs responsive to the intensities sensed by the detectors substantially only during the periodic intervals. The outputs are combined, weighed and/or compared to thresholds to distinguish single and multiple sheets. The apparatus enables reliable operation in noisy electrical environments and with a wide variety of sheet properties.

A bicycle light assembly is electrically connected to a dynamo. The bicycle light assembly has a lamp housing mountable to a portion of the bicycle. An input portion is disposed on the lamp housing and electrically connected to the dynamo for inputting a dynamo output signal and for outputting an input signal. A regulator circuit is electrically connected to the input portion for regulating the input signal to a regulated signal. A light source is electrically connected to the regulator circuit for lighting the periphery and an output portion being disposed on the lamp housing and electrically connected to the regulator circuit for outputting the regulated signal. The output portion has at least one auxiliary electrical output connector for outputting the regulated signal to at least one auxiliary electrical device electrically connected to the at least one auxiliary electrical output connector.

The present invention is a method and system for continuously monitoring cardiac output. In a preferred embodiment, the method and system of the present invention comprises a pneumotachograph, differential pressure transducer, and a signal amplifier/conditioner interconnected to a programmed digital computer. A patient, preferably, inserts the pneumotachograph in his mouth or, alternatively, the pneumotachograph is connected to a patient's tracheal cannula. As the patient exhales and inhales the differential pressure transducer measures the drop in pressure as air flows through the pneumotachograph thereby producing a weak electrical signal non-linearly proportional to flow. Next, the weak signal is directed through the amplifier/signal conditioner which increases the amplitude and removes some of the noise contained in the transducer output. A digital computer is then utilized to convert the analog time varying electrical signal into a stream of digital data, store it on disk, display it in real time and processes the signal using an experimentally determined correlation factor and mathematical equations relating the fluctuations in air flow with stroke volume to obtain the cardiac output.

A musical instrument may include a musical instrument body, a vibrating element associated with the musical instrument body for producing musical sounds, a transducer coupled to a portion of the vibrating element to apply forces to the vibrating element, a sensor responsive to forces between the transducer and the vibrating element and a signal conditioner responsive to forces sensed by the sensor for altering the forces applied by the transducer to the vibrating element to alter the vibrations of the vibrating element. Alternately, a structure may be included supporting the vibrating element to permit vibrations, the structure coupled to the vibrating element to modify the vibrations in response to a drive signal and to produce an electrical signal related to the vibrations of the vibrating element and a signal conditioner responsive to forces sensed by the sensor for altering the forces applied by the transducer to the vibrating element to alter the vibrations of the vibrating element.

The invention relates to a digital lightning detection method and a device thereof. The method comprises the following steps: receiving an electromagnetic signal generated when cloud-to-ground flash lightning discharging to generate an electric detection signal; digitalizing the conditioned electric detection signal; filtering the digital signal; establishing a uniform time scale; establishing a lightning signal identification criterion and a digitized cloud-to-ground flash lightning signal identification model by a time determination method, a bipolar test method and a homopolar test method by considering transmission features of a lightning electromagnetic radiation waveform; establishing a time window preprocessing area, and acquiring a development trend of the input digital signal and the corresponding typical parameters; and computing and determining the parameters of the input digital signal in combination with data in the time window by the digitized cloud-to-ground flash lightning signal identification model . The device consists of an antenna, a signal conditioner, an analog to digital converter, a module of cloud-to-ground flash lightning signal identification model, a system control manager, an assistant control manager, a communication interface, an external memory and a clock.

A technique for performing adaptive predistortion in a transmitter includes receiving, at a first input of an error signal unit, a delayed version of a baseband input signal. The technique also includes receiving, at a second input of the error signal unit, a power amplifier feedback signal from an output of a power amplifier. An input error signal that corresponds to a difference between the delayed version of the baseband input signal and the power amplifier feedback signal is then provided at an output of the error signal unit. The input error signal is then received at an input of a signal conditioner. An adjusted error signal that has a lower direct current offset than the input error signal is provided at an output of the signal conditioner.

The present invention relates to methods and systems for monitoring of one or more machines or devices, such as washers and dryers, for a change of state and indicating when the change of state has occurred. In one aspect, the system comprises a monitor and alert unit which generates a signal indicative of the change of the state of the machine or device being monitored and a device or system to produce an alert notification based upon the signal. The monitor and alert unit includes an operational state sensor, a signal conditioner, and a comparator.

An automated transaction machine includes apparatus for distinguishing between single sheets and multiple sheets in a sheet path. The apparatus includes radiation emitters (14, 34) and radiation detectors (20, 40, 42). The radiation emitters are operated to emit radiation at periodic intervals. Signal conditioners (50) receive signals from the radiation detectors and generate outputs responsive to the intensities sensed by the detectors substantially only during the periodic intervals. The outputs are combined, weighed and/or compared to thresholds to distinguish single and multiple sheets. The apparatus enables reliable operation in noisy electrical environments and with a wide variety of sheet properties.

A semiconductor die with an integrated circuit providing a signal conditioner (106) for a capacitive transducer (105), comprising: a gain stage (101) configured to receive an analogue transducer signal; an analogue-to-digital converter (102) coupled to receive a signal outputted from the gain stage (101) and to provide a digital signal. A feedback signal is provided via a digital-to-analogue converter (104) and a digital signal processor (103) that receives the digital signal; and the gain stage (101) is configured with a first input (107) and second input (108) coupled to receive the analogue transducer signal and the feedback signal, respectively.

A bus buffer conditions and amplifies bi-directional electrical signals on a line carrying MIL-STD 1553 bi-polar signals. The device includes a receiver with a threshold detector, a signal conditioner including a retiming circuit and an amplifying transmitter. The signal conditioner receives filtered bi-polar signal output from the receiver and transforms the signal into separate uni-polar digital outputs. The signal conditioner includes means for increasing the positive voltage state period of each uni-polar output voltage state until the beginning of the next output voltage state to eliminate an effective null bus period during a signal transmission. A timing circuit includes a clock and logic circuitry which retimes and combines the uni-polar signals to create a bi-polar digital output having retimed zero-crossing points which is then transmitted out to a second bus. Two bus buffers are connected between the first and second buses in reverse orientation to provide bidirectional capability. An arbitrator circuit sequences signals arriving at the device from both directions based on detection of a null bus period at either bus.