40205results about "Radio wave reradiation/reflection" patented technology

In one embodiment, the invention is a method and apparatus for annotating media streams. One embodiment of a method for facilitating creation of an annotated media stream by a user includes receiving the media stream from the user, mapping at least one item of supplemental content to at least a portion of the media stream to produce the annotated media stream, and storing the annotated media stream. In another embodiment, a method for distributing an annotated media stream provided by a user includes receiving the annotated media stream from the user, where the annotated media stream includes at least one item of supplemental content mapped to at least a portion of a media stream to produce the annotated media stream, storing the annotated media stream, receiving a request from a viewer to view the annotated media stream, and distributing the annotated media stream to the viewer. In another embodiment, a method for distributing an annotated media stream provided by a user includes distributing the annotated media stream to a viewer, where the annotated media stream includes at least one item of supplemental content mapped to at least a portion of a media stream to produce the annotated media stream, and collecting a commission when the annotated media stream is viewed by the viewer. In one embodiment, the collecting requires further action on a part of the viewer (such as selection of a hyperlink contained in the at least one item of supplemental content or consummation of a commercial transaction).

System and method for preventing vehicle accidents in which the absolute position of the vehicle is determined, e.g., using a satellite-based positioning system such as GPS, and the location of the vehicle relative to the edges of the roadway is then determined based on the absolute position of the vehicle and stored data relating to edges of roadways on which the vehicle may travel. A system or component within the vehicle is initiated, e.g., an alarm or warning system, or the operation of a system or component is affected, e.g., an automatic guidance system, if the location of the vehicle approaches close to an edge of the roadway or intersects with an edge of the roadway.

Arrangement and method for mapping a road during travel of a vehicle having two data acquisition modules arranged on sides of the vehicle, each including a GPS receiver and antenna for enabling the vehicle's position to be determined and a linear camera which provides one-dimensional images of an area on the respective side in a vertical plane perpendicular to the road such that information about the road is obtained from a view in a direction perpendicular to the road. A processor unit forms a map database of the road by correlating the vehicle's position and the information about the road. Instead of or in addition to the linear cameras, scanning laser radars are provided and transmit waves downward in a plane perpendicular to the road and receive reflected waves to provide information about distance between the laser radars and the ground for use in forming the database.

A navigation and control system including a sensor configured to locate objects in a predetermined field of view from a vehicle. The sensor has an emitter configured to repeatedly scan a beam into a two-dimensional sector of a plane defined with respect to a first predetermined axis of the vehicle, and a detector configured to detect a reflection of the emitted beam from one of the objects. The sensor includes a panning mechanism configured to pan the plane in which the beam is scanned about a second predetermined axis to produce a three dimensional field of view. The navigation and control system includes a processor configured to determine the existence and location of the objects in the three dimensional field of view based on a position of the vehicle and a time between an emittance of the beam and a reception of the reflection of the emitted beam from one of the objects.

Carrier Interferometry (CI) provides wideband transmission protocols with frequency-band selectivity to improve interference rejection, reduce multipath fading, and enable operation across non-continuous frequency bands. Direct-sequence protocols, such as DS-CDMA, are provided with CI to greatly improve performance and reduce transceiver complexity. CI introduces families of orthogonal polyphase codes that can be used for channel coding, spreading, and/or multiple access. Unlike conventional DS-CDMA, CI coding is not necessary for energy spreading because a set of CI carriers has an inherently wide aggregate bandwidth. Instead, CI codes are used for channelization, energy smoothing in the frequency domain, and interference suppression. CI-based ultra-wideband protocols are implemented via frequency-domain processing to reduce synchronization problems, transceiver complexity, and poor multipath performance of conventional ultra-wideband systems. CI allows wideband protocols to be implemented with space-frequency processing and other array-processing techniques to provide either or both diversity combining and sub-space processing. CI also enables spatial processing without antenna arrays. Even the bandwidth efficiency of multicarrier protocols is greatly enhanced with CI. CI-based wavelets avoid time and frequency resolution trade-offs associated with conventional wavelet processing. CI-based Fourier transforms eliminate all multiplications, which greatly simplifies multi-frequency processing. The quantum-wave principles of CI improve all types of baseband and radio processing.

System for tracking mobile tags. Cell controllers with multiple antenna modules generate a carrier signal which is received by the tags. Tags shift the frequency of the carrier signal, modulate an identification code onto it, and transmit the resulting tag signal at randomized intervals. The antennas receive and process the response, and determine the presence of the tags by proximity and triangulation. The recursive-least squares (RLS) technique is used in filtering received signals. Distance of a tag from an antenna is calculated by measuring the round trip signal time. The cell controllers send data from the antenna to a host computer. The host computer collects the data and resolves them into positional estimates. Data are archived in a data warehouse, such as an SQL Server. Also disclosed is an article tracking system that supports both active and passive tags with a cell controller able to read both passive and active tag signals.

A radar-based physiological motion sensor is disclosed. Doppler-shifted signals can be extracted from the signals received by the sensor. The Doppler-shifted signals can be digitized and processed subsequently to extract information related to the cardiopulmonary motion in one or more subjects. The information can include respiratory rates, heart rates, waveforms due to respiratory and cardiac activity, direction of arrival, abnormal or paradoxical breathing, etc. In various embodiments, the extracted information can be displayed on a display.

An inventory control system and method that tracks inventories of items with RFID tags, includes a reader unit and an intelligent station that tracks RFID tags to determine item information of items to be inventoried. The reader unit transmits and receives RF signals. The intelligent station includes a first RF antenna connected to the reader unit by a first transmission cable through a first switch, and one or more additional RF antennae connected to the reader unit by the same first transmission cable through additional switches. An inventory control processing unit receives item information from the intelligent stations to update inventory information regarding the items to be inventoried.

Applications of RFID technology include: RFID Tags on Automobiles in Parking Garages; RFID w/Toothbrushes; RFID Tags For Laundry Settings; RFID Tags Or Labels to Find a Mate; RFID To Identify The Value Of Coins; RFID Tags In The Doctors Office; RFID Tags Or Labels In Game Arcades; RFID With Prisoners; RFID Tags To Identify Soldiers; RFID Labels As Tags To Label Particular Components Of Aircraft or Other Structures; Car, Snowmobile, Boat, Etc. Ignition That Won't Start Without RFID Card; Car seats with RFID reader and memory; Air bags that adjust based on information on RFID; Car that keeps track of GPS info and knows whos driving based on RFID; RFID Smart Closet; Method of taking attendance; RFID on networked desks to monitor the location of individuals; Personal computer reads RFID to log you in and take you to favorite web page, load favorites list, etc.; RFID labels on Files; RFID address label versions of all label and sheet inventions; RFID sports tickets; Combination function invitation and RFID chip to allow admittance; Roll of tape with RFID built in; Schoolbus reads which kids getting on, keeps record; RFID on each car wheel; RFID key to operate common-area laundry; RFID to automatically adjust weights/treadmill settings in gym; RFID w/clothes measurements, save shelf space at store, get proper size; RFID keyring w/car information; Keep track of who's driving around neighborhood; RFID dental implant; RFID Thumbtack; RFID Doorstop; RFID identification of boats or ships at docks; RFID on cups w/specifics of favorite coffee drinks; RFID on bridges with RFID tanks on top of cars, to detect speeding; RFID on studs in a wall and RFID reader that acts as a stud finder; RFID tags or labels inside tires; RFID cards supplied with newspapers or magazines; RFID card that lights up a when the user reaches a particular location; RFID sports ticket w/automatic map generation to seat; RFID card to tell school cafeteria what lunch to prepare for particular student; student desk with slot to receive RFID card, desks on networks together, Central computing system can tell where any particular student is sitting at any given moment within the school; RFID readers on outdoor play equipment; Authentication of Expensive Items With RFID; Paintings or other art work with RFID label to be used to verify the number in a limited series; RFID on sports helmet or uniform; RFID chips in paint; RFID cards issued to airline passengers to identify type of drinks and meals for a particular passenger, etc.; Greeting Cards With RFID; Decorative Tiles With RFID Tags; RFID in Car Washes; and Adaptive Advertising Based on RFID Information.

An apparatus for assisting safe operation of a vehicle includes an environment sensor system detecting hazards within the vehicle environment, a driver monitor providing driver awareness data (such as a gaze track), and an attention-evaluation module identifying hazards as sufficiently or insufficiently sensed by the driver by comparing the hazard data and the gaze track. An alert signal relating to the unperceived hazards can be provided.