1789 results about "Radio reception" patented technology

A portable patient communicator (PPC) includes a portable housing that supports a processor coupled to memory for storing medical firmware and wireless radio firmware, first and second radios, a processor, and a power source. Communications between a patient implantable medical device (PIMD) and the first radio of the PPC are effected in accordance with program instructions of the medical firmware, and communications between the second radio of the PPC and the wireless network are effected in accordance with program instructions of the wireless radio firmware. Data from the PIMD is received via the first radio to which a priority level is assigned, such as in a tiered manner. A data transport mechanism is selected among disparate data transport mechanisms based at least in part on the priority level. PIMD data is transmitted to the wireless network using the selected transport mechanism via the second radio.

A portable music device (PMD) for capturing song tags while monitoring a broadcast (via Internet or radio), either on the PMD (either via an Internet connection or via a built-in FM radio receiver), or on a nearby radio (by detecting the station to which the nearby radio is tuned). The user can use the captured song tags to download song files, either on the Internet or in a physical music shop. Song tags may be ID3-type tags modified to include a link to a web address of a server for downloading songs. The PMD may also store credits for paying for the songs, and may include a contactless interface for secure payment.

The key of the invention is to introduce an interoperability device in a communication system which integrates an IEEE 802.11 transceiver and a Bluetooth transceiver. The device prevents that one transceiver is transmitting while the other is receiving, which would cause interference at the receiving transceiver. In addition, the device preferably prevents that both systems are transmitting at the same time to avoid interference at the receiving device(s). Optionally the device prohibits simultaneous reception of both transceivers. In that way the radio receiver can be shared between the devices, allowing a cheaper and smaller hardware design.

A conventional portable cellular phone modified such that the phone housing incorporates a digital cameras security alarm system and other functions. In another embodiment, the portable cellular phone is modified such that the phone housing incorporates a security alarm system, radio receiver and other functions.

A combined wireless transceiver and signal conversion unit comprises a radio receiver for receiving a wireless radio signal, and a converter for converting the signal into a form having a communications protocol supported by a communications port of a user digital device. An output device is provided for transmitting the converted signal to a user digital device via a wireline or other suitable medium for carrying the converted signal. The unit includes an input device for receiving a communications signal from the communication port of a user digital device via a wireline or other suitable signal transmission medium, and a transmitter for converting the received signal to a form for wireless transmission.

Communication is provided which includes receiving a transmitted radio signal at a powerline wherein the powerline functions as a receiving antenna for the wirelessly transmitted radio signal. The powerline is coupled to an input of a radio receiver using a coupler to communicate the radio signal to the radio receiver. For calibration purposes a second antenna not coupled to powerline may be used. A method for powerline communication across transformers, open circuit breakers, and other devices is also provided. In addition, a method of monitoring a device connected to a powerline is provided.

Methods, apparatuses, and systems directed to a wireless node location mechanism that uses a signal strength weighting metric to improve the accuracy of estimating the location of a wireless node based on signals detected among a plurality of radio transceivers. In certain implementations, the wireless node location mechanism further incorporates a differential signal strength metric to reduce the errors caused by variations in wireless node transmit power, errors in signal strength detection, and/or direction-dependent path loss. As opposed to using the absolute signal strength or power of an RF signal transmitted by a wireless node, implementations of the present invention compare the differences between signal strength values detected at various pairs of radio receivers to corresponding differences characterized in a model of the RF environment. One implementation of the invention searches for the locations in the model between each pair of radio receivers where their signal strength is different by an observed amount.

A radio signal relaying device has a PDA and a wireless modulating module connected to the PDA. The PDA is provided with multiple ports of different specifications such as a memory card slot, a USB interface or a serial port. The wireless modulating module is selectively linked to one of the ports to modulate music files stored in the PDA. The modulated sound files can be transmitted in the form of radio waves and then be demodulated and played by any radio receiving device.

Potential interference is reduced in an impulse radio. A signal including an impulse signal and potential interference is received by the impulse radio. The impulse signal includes a sequence of impulses. The sequence of impulses of the received signal is sampled at a sequence of data sample times to produce a sequence of data samples. The received signal is also sampled at a plurality of time offsets from each of the data sample times to produce a plurality of nulling samples corresponding to each of the data samples. A separate sequence of nulling samples for each of the time offsets is thereby produced. Each of the data samples is then separately combined with a corresponding nulling sample from each of the separate sequences of nulling samples to produce a separate sequence of adjusted samples corresponding to each of the time offsets. A separate quality metric, representative of a signal-to-interference level, is then determined for each of the separate sequences of adjusted samples. A preferred sequence of samples is selected for further signal processing based on the determined quality metrics. Alternatively or additionally, one of the plurality of time offsets is selected as the preferred time offset based on the determined quality metrics.

An interactive radio system is disclosed. The overall architecture of the interactive radio system includes a broadcast system for broadcasting digital information across a radio signal to web radio receiver units. An interactive broadcast reception system includes a general purpose computer having a processor, display, and storage and internet connection, a broadcast receiver to communicate with the general purpose computer and to decode digital subcarrier data formatted as a broadcast markup language document, and application software that runs on the processor of the computer and communicates with the broadcast receiver to control the operation of the broadcast receiver and to respond to broadcast markup language commands in said broadcast markup language document by connecting to an internet address referenced in said digital subcarrier data.

Mobile device (3) and method for receiving and processing program-accompanying digital data, which are transmitted by a radio transmitter (1), for example a DAB transmitter, and of which at least certain comprise location parameters. The mobile device (3) includes a radio receiver (38), which can receive radio programs with program-accompanying digital data, and a position locating module (39) for establishing the current position, for example a GPS receiver. The mobile device (3) further comprises a filter module (37), by means of which, on the basis of the current position, determined by the said position locating module (39), location-specific information can be filtered from the received program-accompanying data, which contain, for example, order numbers, URL addresses or executable program data files. The received program-accompanying data can be filtered moreover by the said filter module (37) on the basis of a user profile (35) stored in the mobile device (3). Location-specific data can be shown on a display (31) of the mobile device (3), can be selected by the user by means of operating elements (32) of the mobile device (3), can be edited and can be further processed through the mobile device (3).

A disaster alert system and disaster alert devices for use in the system. Each disaster alert device includes a radio receiver, and a processor programmed to monitor radio transmissions from one or more central stations for disaster alerts directed to the location of the disaster alert device. Each alert device also includes an audio unit to alert personnel located at the site of the device to the precise nature of the disaster. The disaster alert devices are pre-programmed with information identifying the precise use location of the warning device. This use location information includes latitude and longitude of the use location and may also include other location information such as street address and zip code. Warnings are broadcast from central stations identifying with latitude and longitude information specific at-risk regions to which the warnings are directed which could be, for example, nationwide, statewide, countywide, or to much smaller regions, such as several houses on a single street or even a single residence. Each disaster alert device is preferably programmed to ignore all warnings directed to at-risk regions that do not include the latitude and longitude of the use location of the device.

The invention relates to a method and a system for monitoring and position determination of objects and/or living beings within an area, such as, e.g. a room in a building. The system comprises a plurality of electronic units, called identification tags, which are attached to the objects that have to be monitored. Each identification tag has its own identification code (ID code) and is equipped with an ultrasonic transmitter, radio transmitter and radio receiver. The ultrasonic signals are recieved by one or more master and slave units which calculate transit time differences of ultrasonic pulses. This information together with the identification tags' ID code, identification of the room in which it is located, and any additional information are transmitted to a central processing unit which calculates the identification tag's position and presents it to a user of the system.

In a signal receiving apparatus as, for example, that used in the monitoring in a stolen vehicle transceiver of the presence of sequential transmitted signals specifically requesting that transceiver to respond to enable tracking the vehicle, wherein the receiver is powered by a consumable energy source of predetermined budgeted lifetime and adapted to operate between quiescent energy-saving and energized energy-consuming states for performing such sequential signal monitoring, desired signal identifying and related functions, a method of and apparatus for insuring the availability of energy to be able to perform such functions within said predetermined budgeted life time, that comprises, allocating budget time intervals for periodically operating the receiver intermittently in energized state to enable the performing of such functions as monitoring for such signals; and, in the event of inordinate energy consumption during such operation, that, if continued, would render the operation out of overall allocated time budget, adaptively skipping time intervals with the receiver quiescent, sufficiently to get the operation back on overall time budget.

A pulse measuring apparatus comprises a pulse sensor unit having a pulse sensor, a pulse measuring instrument having a display section for displaying a pulse number, and an arm wearing band fixed to the pulse measuring instrument and to which the pulse sensor unit is attached so as to be capable of adjusting its position in a longitudinal direction. A radio transmission section is disposed in the pulse sensor unit and a radio reception section is disposed in the measuring instrument, whereby data can be radio-transmitted from the pulse sensor unit to the measuring instrument. The data to be radio-transmitted is a pulse detection signal of the pulse sensor of the pulse sensor unit, or a pulse number obtained by calculation-processing the pulse detection signal by a signal processing section of the pulse sensor unit.