Masimo Corporation

Siemens Aktiengesellschaft

Siemens Enterprise Communications Gmbh & Co. Kg

Lightbit Corporation, Inc.

Mark Sher

Richard G Caro

Bryan Patrick Flaherty

Michael J Wynblatt

Robert G Batchko

Christopher K Hess

Stuart Goose

Jinhui Hu

According to some embodiments, a method and a system are provided to receive a first video signal at a first client and to receive a second video signal at a second client. The first video signal comprises an image of a first person and the second video signal comprises an image of a second person. The received first video signal and an image of a conference room are combined at the first client to create a first modified video signal comprising the image of the first person in the conference room. The received second video signal and the image of the conference room are combined at the second client to create a second modified video signal comprising the image of the second person in the conference room.

Method and system for video conferencing in a virtual environment

A measurement device for generating an arterial volume-indicative signal includes an exciter and a detector. The exciter is adapted to receive an oscillating signal and generate a pressure wave based at least in part on the oscillating signal on the artery at a measurement site on a patient. The pressure wave includes a frequency. The detector is placed sufficiently near the measurement site to detect a volumetric signal indicative of arterial volume of the patient.

Rapid non-invasive blood pressure measuring device

Systems and methods are provided to facilitate retrieval of context relevant information. According to some embodiments, an event associated with a computer system is captured. In response to the captured event, a subset of data objects are selected that may be related to the event. A list associated with the subset of data objects may then be created, wherein the list is at least partially ordered based on a degree of relevance between a data object in the list and the event. Information associated with the created list may then be provided.

Methods and apparatus to recall context relevant information

A monitor for determining a patient's physiological parameter includes a calibration device that provides a calibration signal indicative of an accurate measurement of the patient's physiological parameter. The monitor also includes a processor, which receives a noninvasive signal from a noninvasive sensor positioned over a blood vessel. The processor uses the calibration signal to calibrate a relationship between the noninvasive signal and a property of the physiological parameter. The processor also determines when to recalibrate the relationship.

System and method of determining whether to recalibrate a blood pressure monitor

A WDM signal converter is provided. The signal converter is formed from a DFG and a separator, such as a WDM interleaver multiplexer/demultiplexer. The DFG receives first WDM channel signal(s) and converts into second WDM channel signal(s). The pump signal which energizes the conversion is set such that one-half of its frequency is set between, and more precisely, one-half, two WDM channels. This ensures that the second WDM signal is separated by an odd number of channels from the first WDM signal. The separator which receives the output from the DFG device, can then transmit the converted second WDM signal to one separator output port and transmit any first WDM signals, such as signals which have not been converted, to a second separator output port. In effect, the separator filters the output of the DFG.

Optical signal converter with filtered output

A blood pressure can be obtained by supplying an external pressure to a portion of an artery. The external pressure is preferably between the systolic and diastolic pressure. An event which occurs at least once a cycle can then be identified. This event can be, for example, a peak in the arterial compliance that occurs at a transmural pressure approximately equal to zero. A pair of signals, one that is an arterial volume-indicating signal, and one that is an arterial pressure-indicating signal can be used to identify this event. Alternately, a small signal high-frequency exciter component can be placed upon the pressure or volume of the artery and detected to determine the time that the transmural pressure is equal to zero.

A monitor for determining a patient's physiological parameter includes a calibration device configured to provide a calibration signal representative of the patient's physiological parameter. An exciter is positioned over a blood vessel of the patient for inducing a transmitted exciter waveform into the patient. A noninvasive sensor is positioned over the blood vessel, where the noninvasive sensor is configured to sense a hemoparameter and to generate a noninvasive sensor signal representative of the hemoparameter containing a component of a received exciter waveform. In this context, a hemoparameter is defined as any physiological parameter related to vessel blood such as pressure, flow, volume, velocity, blood vessel wall motion, blood vessel wall position and other related parameters. A processor is configured to determine a relationship between a property of the received exciter waveform and a property of the physiological parameter. The processor is connected to receive the calibration signal and the noninvasive sensor signal, and the processor is configured to process the calibration signal and the noninvasive sensor signal to determine the physiological parameter. In the preferred embodiment, the physiological parameter measured is blood pressure, however, the present invention can also be used to analyze and track other physiological parameters such as vascular wall compliance, strength of ventricular contractions, vascular resistance, fluid volume, cardiac output, myocardial contractility and other related parameters.

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San Francisco, CA, United States of America

Mark Sher