Patent application number | Description | Published |
20100175458 | Photoacoustic Spectroscopy System and Technique for Remote Sensing of Explosives and Toxic Chemicals - A user-friendly photoacoustic spectroscopy (PAS) system and process (technique) provides an open-field PAS instrument, unit and device to remotely sense explosives, chemicals and biological agents. The PAS system and process can include: a pulsed tunable laser, such as a CO | 07-15-2010 |
20100290063 | MILLIMETER WAVE SENSOR FOR FAR-FIELD STANDOFF VIBROMETRY - A millimeter wavelength (MMW) measurement system for remote detection of object characteristics and methods for detecting such characteristics. The MMW measurement system comprises a front-end and an optional signal conditioning component. The MMW front-end includes an oscillator, a transceiver portion, and an antenna for focusing a detection component comprising micrometer level wavelength electromagnetic radiation onto the object. A portion of the electromagnetic radiation reflected by the object is received by the MMW measurement system, which is indicative of a displacement of the object. The MMW system may be configured to detect micrometer level displacement of the object disposed tens of meters from the MMW measurement system. In various embodiments the object may be a natural object, including a human, and the displacement may be indicative of a heart rate and/or a respiratory function. | 11-18-2010 |
20120242544 | RADAR DETECTION OF RADIATION-INDUCED IONIZATION IN AIR - A millimeter wave measurement system has been developed for remote detection of airborne nuclear radiation, based on electromagnetic scattering from radiation-induced ionization in air. Specifically, methods of monitoring radiation-induced ionization of air have been investigated, and the ionized air has been identified as a source of millimeter wave radar reflection, which can be utilized to determine the size and strength of a radiation source. | 09-27-2012 |
20130257646 | COMPRESSIVE PASSIVE MILLIMETER WAVE IMAGER - A compressive scanning approach for millimeter wave imaging and sensing. A Hadamard mask is position to receive millimeter waves from an object to be imaged. A subset of the full set of Hadamard acquisitions is sampled. The subset is used to reconstruct an image representing the object. | 10-03-2013 |
20140320864 | INTERFEROMETRIC MILLIMETER WAVE AND THZ WAVE DOPPLER RADAR - A mixerless high frequency interferometric Doppler radar system and methods has been invented, numerically validated and experimentally tested. A continuous wave source, phase modulator (e.g., a continuously oscillating reference mirror) and intensity detector are utilized. The intensity detector measures the intensity of the combined reflected Doppler signal and the modulated reference beam. Rigorous mathematics formulas have been developed to extract bot amplitude and phase from the measured intensity signal. Software in Matlab has been developed and used to extract such amplitude and phase information from the experimental data. Both amplitude and phase are calculated and the Doppler frequency signature of the object is determined. | 10-30-2014 |
Patent application number | Description | Published |
20090096751 | PROJECTED CLEANABLE KEYBOARD - Systems and methods are described for simulating physical features of a projected keyboard in a sterile environment by incorporating a mechanical keyboard and a virtual keyboard. A keyboard projection apparatus projects light toward a mechanical keyboard. When a key is pressed, the keyboard projection apparatus tracks finger locations. User input is created by the keyboard projection apparatus and can be processed by a computer or other electrical equipment. By using an actual keyboard having simple mechanical components with the keyboard projection apparatus, the tactile feel can be realized and the keyboard can be easily cleaned or disposed of. | 04-16-2009 |
20110187509 | SOFTWARE-DEFINED MULTI-MODE RFID READ DEVICES - Devices and methods for reading multiple types of RFID tags having different frequencies and/or encoding schemes are disclosed. One or more search signals covering a plurality of RFID bands are transmitted. A presence indication of an RFID tag in one of the plurality of RFID bands is detected. An interrogating signal having a carrier frequency tuned to a frequency at which the presence indication is detected is transmitted. A tag response signal comprising tag information associated with the RFID tag is received. A digital response signal based on the tag response signal is digital signal processed to obtain the tag information. | 08-04-2011 |
20110187544 | SYSTEM AND METHOD FOR EXTENDING THE BATTERY LIFE IN INVENTORY CONTROL DEVICES - Systems and methods of extending battery life in inventory control devices are disclosed. A passive receiver configured to wirelessly receive an initiation signal having an associated energy field from a remote control system and to output a mode change signal is provided. The passive receiver is configured to be powered by an energy field associated with the initiation signal. A functional module coupled to the passive receiver and configured to be powered by a self-contained power source when the functional module is in an active mode is provided. The functional module is further configured to receive the mode change signal from the passive receiver and to change from an inactive mode to the active mode. The functional module draws more power from the power source in the active mode than in the inactive mode. | 08-04-2011 |
20110305049 | PHASE-CONTROLLED UNINTERRUPTIBLE POWER SUPPLY - A phase-controlled power supply is disclosed. The power supply includes a power conditioner with an input configured to connect to an external source of electrical power, the power conditioner being configured to provide conditioned power on its output. The power supply also includes a transformer having a primary winding and a secondary winding, and a switching module coupled between the output of the power conditioner and to the primary winding of the transformer. The switching module has two modes of operation and a control signal input configured to accept a first control signal. The switching module includes a switching element configured to connect the power conditioner output to the primary winding of the transformer. The switching module operates in the first mode when the first control signal is in a first state, switching the first switching element at a first frequency and first duty cycle. The switching module operates in the second mode when the first control signal is in a second state, switching the first switching element at a frequency and duty cycle according to the first control signal. | 12-15-2011 |
20120029309 | VITAL-SIGNS PATCH HAVING A STRAIN RELIEF - A vital-signs monitor patch containing at least two electrodes, a circuit assembly, and a patch body having a chamber in which the circuit assembly is housed. The patch body also contains at least one flexible portion adjacent to the circuit assembly chamber, with at least one electrode attached to the flexible portion. The electrodes are configured for attaching the patch to the skin of a patient. | 02-02-2012 |
20120029310 | TEMPERATURE PROBE SUITABLE FOR AXILLARY READING - Systems and methods of monitoring the axillary temperature of a person are disclosed. A portion of a temperature probe is provided within the axilla of the person. The temperature probe includes a wiring portion and a body connection portion and a sensing portion between the wiring and body connection portions. The sensing portion comprises a temperature sensing element. The wiring portion is coupled to a monitoring device and comprises a conductor having a first end and a second end, the first end coupled to the temperature sensing element, and the second end connected to the monitoring device. At least a portion of the body connection portion is attached to a second body portion of the person, such that the sensing portion is retained within the axilla. | 02-02-2012 |
20120029311 | SYSTEM AND METHOD FOR STORING AND FORWARDING DATA FROM A VITAL-SIGNS MONITOR - A vital-signs patch for a patient monitoring system that includes a housing containing a sensor that makes physiological measurements of a patient, a transmitter, a receiver, a memory, and a processor. The processor periodically takes a measurement from the sensor, converts the measurement to a data record, and stores the data record in the memory. Upon receipt of a signal from another device, the processor retrieves at least a portion of the data record, converts the retrieved portion of the data record to a vital-sign signal, and causes the transmitter to transmit the vital-sign signal to the other device. | 02-02-2012 |
20120029315 | SYSTEM AND METHOD FOR CONSERVING BATTERY POWER IN A PATIENT MONITORING SYSTEM - A vital-signs patch in a patient monitoring system is disclosed. The patch includes a housing configured to be attached to the skin of a patient, the housing containing a radio that can selectably transmit and receive on more than one frequency and a processor. The processor configures the radio to transmit and receive on a determined frequency based at least in part on the level of noise detected on the frequencies. | 02-02-2012 |
20120029316 | SYSTEM AND METHOD FOR SAVING BATTERY POWER IN A PATIENT MONITORING SYSTEM - A vital-signs patch for a patient monitoring system is disclosed. The patch consists of a housing that is configured to be worn on the skin of a patient. The housing contains a radio, one or more sensor interfaces, a processor, and a battery. The processor can selectably turn portions of the processor off and on and selectably turn power off and on to at least a portion of the sensor interfaces and radio. The processor includes a timer that, each time the timer times out, will turn all the parts of the processor on and start a new timing period. When the processor receives a signal, the processor will turn off power to at least a portion of the processor and at least a portion of the sensor interfaces. | 02-02-2012 |
20120030547 | SYSTEM AND METHOD FOR SAVING BATTERY POWER IN A VITAL-SIGNS MONITOR - A vital-signs device in a patient monitoring system is disclosed. The patch includes a housing configured to be attached to the skin of a patient. The housing contain monitoring circuitry configured to acquire and store measurements of vital signs of the patient, a wireless transmitter configured to transmit signals to another device, a wireless receiver configured to receive signals from the other device; and a processor operably connected to the monitoring circuitry, transmitter, and receiver. Upon receipt of an upload signal from the other device, the processor is configured to send a message to the other device via the transmitter. The message packet structure includes a data payload of variable size, a header containing transmit and route information and data payload length, and a data integrity check value. | 02-02-2012 |
20140350362 | SYSTEM AND METHOD FOR STORING AND FORWARDING DATA FROM A VITAL-SIGNS MONITOR - A vital-signs patch for a patient monitoring system that includes a housing containing a sensor that makes physiological measurements of a patient, a transmitter, a receiver, a memory, and a processor. The processor periodically takes a measurement from the sensor, converts the measurement to a data record, and stores the data record in the memory. Upon receipt of a signal from another device, the processor retrieves at least a portion of the data record, converts the retrieved portion of the data record to a vital-sign signal, and causes the transmitter to transmit the vital-sign signal to the other device. | 11-27-2014 |
20150223706 | SYSTEM AND METHOD FOR SAVING BATTERY POWER IN A PATIENT MONITORING SYSTEM - A vital-signs patch for a patient monitoring system is disclosed. The patch consists of a housing that is configured to be worn on the skin of a patient. The housing contains a radio, one or more sensor interfaces, a processor, and a battery. The processor can selectably turn portions of the processor off and on and selectably turn power off and on to at least a portion of the sensor interfaces and radio. The processor includes a timer that, each time the timer times out, will turn all the parts of the processor on and start a new timing period. When the processor receives a signal, the processor will turn off power to at least a portion of the processor and at least a portion of the sensor interfaces. | 08-13-2015 |