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7359701 |
Method for conducting radiated performance tests of a wireless device
A method for conducting a radiated performance test on a wireless device comprising the steps of: establishing an interface from a test computer to the wireless device; establishing a data...
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7327984 |
Device and method for measuring receive sensitivity of communication system including receive-only path
Disclosed is a device ( 200 ) and a method for measuring a receive sensitivity of a communication system having a transmit and receive path and a receive-only path, like a base station ( 100 )...
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7251456 |
Wireless module simulator
Allowing a wireless network application to execute, as during development and testing, as if connected to a wireless network using wireless modems without requiring physical access to or presence...
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7236795 |
Controlling processor load in a wireless telecommunications network node
A wireless telecommunications network node is provided. The node includes a processor configured to handle call traffic and to record measurement data. The processor is also configured to detect...
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7228105 |
Field test chamber arrangement
A measurement arrangement for accurate and repeatable measurement of transmission and reception characteristics of a communication device. The arrangement comprises an at least partly conductive...
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7203616 |
Method and system for the interactive testing of assembled wireless communication devices
A method and system for the interactive testing of assembled wireless communication devices is provided. The method comprises: assembling the wireless communication devices to include at least one...
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7162285 |
Detector and method for detecting telephone-activated devices in idle state
A detector for detecting telephone-activated devices, such as cellular telephones used for remotely triggering explosive devices, includes a transmitter for generating and transmitting a pseudo...
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7109932 |
Antenna efficiency test device
The present invention provides, an antenna test device to test antenna efficiency. The test device includes a cavity formed by at least one conductive sidewall. The cavity contains at least one...
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7109931 |
Method and apparatus to control an antenna efficiency test device
The present invention provides a method to measure antenna efficiency using the cavity method. In particular, the present invention provides a tunable cavity that can be tuned to avoid the anti...
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7107020 |
Mobile phone positioning apparatus for radiation testing
A mobile phone positioning apparatus provides a rotational movement and switching functionality among three planes (H, E 1 and E 2 ) as requested by a radiation test. The positioning apparatus...
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7043286 |
Extrinsic signal to shunt an acoustic driver in a cellular telephone, pager or the like
A method for selectively shunting an acoustic driver within an electronic device detects the presence of a squelch signal from a local emitter and automatically shunts the acoustic driver in...
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7035594 |
Method and apparatus for testing and evaluating wireless communication devices
A testing chamber is configured to evaluate the accuracy of a wireless communication device under test in a production environment. The configuration of the testing chamber may resemble an enclosed...
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6970700 |
Power delivery system
A method and apparatus for measuring the characteristics of radio frequency energy in an industrial radio frequency processing system at a plurality of frequencies is disclosed. The method and...
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6950665 |
Methodology and system for generating a three-dimensional model of interference in a cellular wireless communication network
A method (and system) for quantifying a three-dimensional model of interference in a cellular wireless communication network. The model is derived from the acquisition and analysis of composite...
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6870905 |
Wiretap implemented by media gateway multicasting
Media gateways operate under the control of an intelligent node or switch associated with a wiretap party and are configured on a per call basis to establish multicasting communication links to law...
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6839546 |
Process transmitter with wireless communication link
A process transmitter is configured to measure a process variable of an industrial process. A housing has a first cavity which houses first transmitter electronic circuitry and provides a barrier...
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6839544 |
System and method for remote monitoring of a transmitter in a wireless base station
There is disclosed a signal monitoring apparatus for use in a wireless network base station containing a modular main unit for processing baseband signals and a modular radio unit separate from the...
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6785515 |
Method and system for tapping telephone conversations
A method and a system for monitoring telephone calls are described. A useful signal (which represents the call information of a telephone call) and a data set (which contains at least one digital...
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6721561 |
Method for building a home-zone database using measured power strength
Disclosed is a method for building a home-zone database using data measured while moving about the home-zone service area in a mobile communication system, which includes a mobile diagnostic...
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6718296 |
Measurement of signal quality
Apparatus for assessing the performance of telecommunications systems by comparison of a reference signal with the same signal as degraded by the system under test tends to give unreliable results...
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6678525 |
Method and apparatus for modeling the propagation of wireless signals in buildings
Techniques for predicting RF signal propagation in indoor environments are disclosed. A typical technique comprises six distinct phases. In one phase, the mean wall separation, {overscore (d)}, of...
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6662009 |
Methods and apparatus for performance testing of cordless telephones
Methods and apparatus for performance testing of an analog cordless telephone are addressed herein. A telephone base station is connected to a test controller which directs the base station to...
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6525657 |
Apparatus and method for production testing of the RF performance of wireless communications devices
A radio frequency (RF) multi-testing apparatus and method for rapid (e.g. production line) testing of a wireless communications device for operational adherence of the device to a pre-determined...
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6397154 |
Correlation method for surveillance device detection
A new correlation process and implementing apparatus for use in detecting the presence and location of a concealed eavesdropping device is disclosed in the present application. The process...
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6314272 |
Radio frequency broadcast system for enclosed spaces
Uniform and concentrated radio broadcast signals are obtained employing an antenna structure which uses separate antenna conductors on opposite sides of a radio reception area. The antenna...
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6253064 |
Terminal based traffic management and security surveillance system for aircraft and other commercial vehicles
A traffic management, security and surveillance system for commercial vehicles while in port incorporates a plurality of strategically located sensors for identifying the location of both...
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6208841 |
Environmental simulator for a wireless communication device
An environmental simulator for use in the testing of wireless devices comprises a base station simulator, a signal manipulator, a switch and an antenna array. The environmental simulator is...
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6169498 |
Device and method for communication location-specific messages
A method for communicating location-specific messages includes storing a library of such messages within a portable device having a capability of randoly accessing the messages. Each...
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6137992 |
Vehicle audio distortion measurement system
A radio frequency audio distortion measurement system for a motor vehicle radio. The system includes a generator that generates test RF signals and transmits the signals to the motor vehicle radio...
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6104292 |
Baby bottle attachment with sound monitor/transmitter and recordable/pre-recorded sound playback
A baby bottle attachment has a cylindrical housing containing electronic integrated circuitry that removably attaches to a baby bottle. The bottle attachment functions as a room monitor for...
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6088582 |
Controlled environment radio test apparatus and method
A controlled environment radio test apparatus includes first and second chambers for receiving respective first and second radio devices therein. The chambers are sized in proportion to an...
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6057765 |
Non-linear junction detector
A non-linear junction detector designed for counter surveillance measures achieves superior performance by using a single circularly polarized antenna to transmit a signal and to receive harmonics...
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5893031 |
System and method for collection of transmission characteristics
A system and method for collecting fingerprint reference wave forms under controlled conditions includes a radio frequency (RF) enclosure designed to receive a cellular telephone. A control system,...
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5877675 |
Wireless healthcare communication system
A portable, three-way wireless communication system provides a patient with a direct link to a caregiver, as well as a central facility such as a nurse's station. The system is comprised of a...
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5873026 |
Battery powered voice transmitter and receiver tuned to an RF frequency by the receiver
A microprocessor based transmitter and a microprocessor based receiver in which a user interface is located on the receiver. The transmitter has an internal DC digital voltage measuring circuit to...
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5825331 |
Radiated emission measuring method using GTEM cell
A method for measuring radiated emission using a GTEM cell is disclosed in which a DUT is placed inside the GTEM cell, and its power is measured by a power receiver. The direction of the DUT is...
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5818328 |
Method and system for providing improved wireless audio transmission
A method and system for providing improved confined area audio amplification is provided. Designed to meet the requirements of classrooms, conference rooms and offices, this new invention provides...
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5805667 |
Apparatus for range-testing cordless communication devices and method of operation thereof
An apparatus for, and method of, range-testing a cordless communication device. The device has a first portion adapted to communicate with a second portion via a signal carried on a wireless...
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5771441 |
Small, battery operated RF transmitter for portable audio devices for use with headphones with RF receiver
A portable RF transmitter having an audio plug extending therefrom which mates with the earphone or output jack of an audio source such as a portable battery operated CD or tape player and having...
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5732326 |
Information guiding system and method of preventing borrower of portable terminal unit from forgetting to return it
An information guiding system is composed of cordless portable terminal units which are to be carried by visitors of a museum, radio base stations, an exchange, and an audio response equipment. A...
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5717656 |
Method and apparatus for detecting and locating a concealed listening device
A method and system for detecting the presence, and the location of, a concealed listening device. In the method, the acoustic signal from the actual acoustic source and electromagnetic signals in...
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5625891 |
Enclosure for tuning paging receivers
A pager tuning system (10) that allows an electronic pager (90) to be tuned without having to perform the tuning within a certified screen room. The system (10) is housed within an enclosure (12)...
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5530412 |
Enhanced mode stirred test chamber
A system and method is provided for transmitting input energy in an electromagnetic field test chamber having a predetermined fundamental frequency f 0 determined by the dimensions of the chamber....
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5241699 |
Electronic surveillance device detector and method using phase angle differences between two received signals
The disclosed invention detects electronic surveillance devices. Should an electronic surveillance device (a bug) be present in a room, the bug will be detecting sounds with a microphone and...
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5239540 |
Method and apparatus for transmitting, receiving and communicating digital data signals with corresponding program data signals which describe the digital data signals
An apparatus and method is described for transmitting, receiving and communicating program data signals which are combined with digital data signals. Preferably, the present invention compresses 30...
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5095537 |
Automatic monitoring system in an explosive environment of a direct current source by storage batteries
An automatic monitoring system of storage batteries housed in battery rooms comprises an acquisition satellite associated with a sensor to measure various physical parameters representative of the...
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4962358 |
Integrity monitoring method and system for shielded enclosures having a fiber optic cable for bidirectional communications between a receiver and transmitter thereof
An improved RF shielding integrity monitoring system is provided for monitoring the shielding integrity of a shielded enclosure that accurately identifies degraded shielding effectiveness and...
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4814694 |
System for detecting and processing abnormality in electromagnetic shielding of intelligent buildings
Disclosed is a system for detecting and processing an abnormality in electromagnetic shielding for use in an intelligent building which is constructed using an electromagnetic shielding material...
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4810961 |
Radio wave leakage diagnosing system for intelligent building
Disclosed is a radio wave leakage diagnosing system for use in an intelligent building which is constructed using an electromagnetic shielding material for the skeleton and openings such as windows...
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4805231 |
Apparatus for detecting an electronic surveillance device
A method and apparatus for detecting a covert audio transmitter in which a microphone which picks up audio frequencies in the room and a radio receiver tuned to an unidentified audio signal are...
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