Abstract: Exemplary systems, methods and other means for providing a key device that may be used with a monitoring system are discussed herein. The key device may be configured to communicate with one or more other devices, silence an alarm, commission a tag, decommission a tag, unlock a tag from an item, among other things. The key device may include rules that permit particular functionality based on, for example, time and/or location.

Abstract: A method and apparatus for determining a range within a wireless communication system is provided herein. The range information can then be used to locate a node (e.g., an asset tag). During operation, the minimum transmission power of a source transceiver (e.g., an RFID reader) that enables a tag to be detected will be used to indicate distance. Changes in transmit power will be used to indicate relative changes in distance to a particular node. The reader will be configured to always operate at a transmission power that will result in a certain percentage (e.g., 50%) detection rate for a target transceiver (e.g., an RFID asset tag). As the reader moves closer to the tag, the minimum detection power will decrease; as it moves farther from the tag, the minimum detection power will increase. This information is displayed to give a general change in range information between the RFID reader and the asset tag (e.g., increasing range or decreasing range).

Abstract: An optical fluid tester device for testing a fluid sample in an ampoule includes an ampoule cradle, a radiation source, a radiation detector and an analyzer. The ampoule cradle supports the ampoule. The ampoule with the fluid sample serves as a lens whose focal properties are dependent on the index of refraction of the fluid sample. The radiation source irradiates the ampoule. The radiation detector is located opposite the radiation source so that the ampoule, when supported by the ampoule cradle, lies between the radiation source and the radiation detector. The detector serves to detect the intensity of the incident radiation. The analyzer verifies the composition of the fluid sample based on the detected intensity, which is dependent on the focal properties of the ampoule and is, therefore, indicative of the composition of the fluid sample.

Abstract: A management system includes a container unit, a sensing unit, a control unit, a signal display unit and a liquid pumping unit. The container unit has a container, a liquid substance and an information storing element. The liquid substance has material information recorded in the information storing element. The sensing unit has an information reader for sensing the material information when the sensing unit joined with the container unit. The control unit electrically connects the information reader to receive the material information. The control unit has a material judging module for judging whether the material information is correct in order to generate a judgment result. The signal display unit has a signal display module for outputting a predetermined signal according to the judgment result. The liquid pumping unit has a liquid pumping module selectively inserted into the container to pump the liquid substance according to the judgment result.

Abstract: A sensor device for the detection of smoke and carbon monoxide. Smoke and carbon monoxide detecting elements are placed within a housing which also contains a rechargeable power source for powering the detector elements The housing is provided with a first interface to engage a lighting fixture and a second interface for engaging a light source. Upon applying electric current to the lighting fixture, power is applied to the sensor device for charging the rechargeable power source and for illuminating the light source.

Abstract: A device including a first energy storage device configured to be charged by a machine when the device is coupled to the machine and a wireless transceiver configured to receive input commands from an input device and transmit the input commands to the machine, where the first energy storage device is configured to transfer electrical energy to the input device when the device is operatively coupled to the input device.

Abstract: An electromagnetic whiteboard pen is disclosed, and particular an electromagnetic whiteboard pen capable of inking and digital inputting simultaneously is disclosed. The electromagnetic whiteboard pen has a marker for writing with ink and a coil for emitting electromagnetic signals. When user writes on an electromagnetic whiteboard by the marker, the coil emitting electromagnetic signals simultaneously. The electromagnetic whiteboard senses the electromagnetic signals to find and record the position and the moving of the electromagnetic whiteboard pen. Therefore, the writing on the electromagnetic whiteboard by inking can be record and converted to be digital signals for storing by the electromagnetic whiteboard when the electromagnetic whiteboard pen writes on the electromagnetic whiteboard.

Abstract: A process for detecting an alarm in an operating machine (1), so that an operator (7) is able to interact with such a machine (1) determining a connection between the machine and the ground, comprising the steps of: determining a current value of a main parameter representative of an electric interaction between said operator (7) and said operating machine (1) under a condition of normal operation of said machine (1); comparing said determined current value with a main reference value; activating an alarm procedure as a function of said comparison.

Abstract: An illuminated level has a housing containing a solid body pivotally mounted in the housing and forming a pendulum which can pivot to a first position in which the surface is accurately level. A light path is provided through the solid body having an exit opening at the pivot point and an entry opening the opposite end. A source of laser light on the housing is arranged to transmit light through an orifice on the housing so that the light through the orifice enters the entry opening to pass along the path when the solid body is in the first position and is prevented from entering the entry opening when the solid body is out of the level position. A light receiver in the housing at the outlet is responsive to the passage of light through the path for providing a sound indicating when the solid body is in the first position.

Abstract: A two-way vehicle communication system has been developed that includes at least one vehicle, at least one vehicle data collection point, at least one operations data supply system, and at least one data communication system, wherein the data communication system is operatively coupled to the at least one vehicle, the at least one vehicle data collection point, the at least one operations data supply system or a combination thereof. A method of monitoring a vehicle using a two-way vehicle communication system has been developed that includes: providing at least one vehicle, providing at least one vehicle data collection point, providing at least one operations data supply system, and providing at least one data communication system, wherein the data communication system is operatively coupled to and communicates with the at least one vehicle, the at least one vehicle data collection point, the at least one operations data supply system or a combination thereof.

Abstract: A bio-information monitoring system is provided. The bio-information monitoring system comprises a wireless sensor and a first wireless network node. The wireless sensor senses at least a bio-information. The first wireless network node collects the bio-information, wherein the bio-information is monitored in response to a command from a second wireless network node to the first wireless network node.

Abstract: A system and method for directing when and where an agricultural vehicle should refill a container thereof may comprise a sensor for detecting an amount of material in the container, a location determining device, and a processing device communicably coupled with the sensor and the location determining device, as well as a display, a speaker, and/or an automated steering system. The processing device may use information regarding the amount of material in the container, the location of the agricultural vehicle, and a variety of other factors to determine when the container needs to be refilled and to determine a refill location at which the agricultural vehicle should refill. The processing device may send these refill instructions to the display, the speaker, and/or the automated steering system. The processing device may also alert a refill vehicle to travel to the determined refill location, if necessary.

Abstract: An apparatus for communicating information to an operator of a vehicle without unnecessarily distracting the operator by illuminating an interior of the vehicle with different colors, includes an illumination control module monitoring an informational input and determining a lighting color command based upon the informational input. The apparatus further includes an illumination system communicating with the illumination control module and generating an illumination color upon the interior based upon the lighting color command.

Abstract: Managing traffic signal preemption at a plurality of intersections. In one approach a security level code that specifies one of a plurality of security levels for at least one jurisdiction is input. The security level controls which emitter codes are allowed to preempt traffic signals at the intersections in the jurisdiction. A set of emitter codes for the plurality of intersections in the jurisdiction is determined in response to the security level code. The set of emitter codes is downloaded to a plurality of preemption controllers at the plurality of intersections in the jurisdiction. Each preemption controller accepts a preemption request only if the preemption request contains an emitter code indicated by the downloaded set of emitter codes as being allowed to preempt traffic signals at the intersections in the jurisdiction.

Abstract: Managing traffic signal preemption data accumulated at a plurality of intersections. In one approach a method includes reading the preemption data stored at each of the intersections. The preemption data includes for each preemption request an emitter code, and a date and a time the preemption request was submitted. The preemption data read from the intersections are stored in a database, and each emitter code is associated with a vehicle name in the database. Selected preemption data and associated vehicle names are read from the database in response to user input, and the selected preemption data and associated vehicle names are displayed. The database further stores data identifying the intersection from which the preemption data was read.

Abstract: A system in a moving surveillance vehicle operates in background mode to capture images of license plates of neighboring moving vehicles, which may occupy lanes other than the lane in which the surveillance vehicle is moving. The images are used to determine the license plate numbers of the moving vehicles, which are then checked against a database to determine whether there are any potential law enforcement-related problems that require the attention of the operator. If so, the system alerts the operator using an audible tone, visual prompt, vibration, or in some other suitable manner. The entire process, including generation of the alert can occur autonomously of the operator.

Abstract: A key unit for a lock system of a vehicle includes a device for opening and closing a lock system, in particular having a transmitter for the remote control of the lock system and/or a mechanical key. The key unit has a modular design, which includes a key case and an attachment. The key case accommodates the device for opening and closing the lock system. The attachment is releasably joined to the key case and permits various embodiments of the key unit.

Abstract: A touch-sensitive device includes a touch panel, drive unit, and measurement unit. A touch applied to a given node of the panel changes a capacitive coupling between a given drive and sense electrode of the touch panel. The drive unit delivers first and second drive signals, having different first and second frequencies, to first and second drive electrodes respectively at the same or overlapping times. The measurement unit receives a first response signal from a sense electrode, and analyzes the signal using maximum likelihood estimation to determine the coupling capacitance between the first drive electrode and the sense electrode, and between the second drive electrode and the sense electrode. More drive electrodes, including in some cases all the drive electrodes, can be driven with unique drive frequencies, and more sense electrodes, including in some cases all the sense electrodes, can be sensed by the measurement unit.

Abstract: An encoding apparatus includes a unit that calculates a plurality of normalized values by dividing input values in an input signal by either a normalization coefficient that is closest to a maximum value of absolute values of the input values or a normalization coefficient that is closest to the maximum value from among normalization coefficients that are larger than the maximum value; a unit that generates a plurality of quantized values by quantizing the plurality of normalized values; a unit that stores a code table in which the smaller the probability of occurrence of the plurality of quantized values, the longer the code length of a variable-length code allocated to the plurality of quantized values; and a unit that outputs, when the plurality of quantized values are all zero, a variable-length code allocated to a combination of a plurality of quantized values in accordance with the code table.

Abstract: A data modulation apparatus includes: insertion means for inserting information bits into data at a predetermined interval; conversion means for converting the data into which the information bits are inserted into an RLL code based on a modulation table that has a variable-length conversion rule; setting means for setting a control section that is used for calculating a value of the information bit; and determination means for determining the value of the information bit inserted into the control section that is different from a calculation target by calculating the code of the control section.

Abstract: Apparatus and methods for pipelined analog-to-digital conversion are disclosed. In some embodiments, a pipelined analog-to-digital converter includes a control and correction circuit; and a plurality of MDAC stages. At least one of the MDAC stages includes: an MDAC input to receive an analog input voltage; and a dual latch flash ADC comprising one or more dual latch comparators. At least one of the dual latch comparators includes: a pre-amplifier having an input coupled to the MDAC input, and an output; a demultiplexer having an input coupled to the output of the pre-amplifier, a first output, and a second output; a first latch having an input coupled to the first output of the demultiplexer, wherein the first latch may generate a first digital signal; and a second latch having an input coupled to the second output of the demultiplexer, wherein the second latch may generate a second digital signal.

Abstract: Apparatus and methods for pipelined analog-to-digital conversion are disclosed. In some embodiments, a pipeline analog-to-digital converter includes a plurality of multiplying digital-to-analog converter (MDAC) stages coupled in cascade. At least one of the MDAC stages includes two or more flash ADCs connected in parallel, operating alternately to generate digital signals from an analog input voltage. In one embodiment, the flash ADCs provide the digital signals in an alternating manner to a capacitor block that receives a delayed analog input voltage. In another embodiment, the at least one MDAC may include two or more capacitor blocks, each of which is associated with a respective one of the flash ADCs, forming two or more sets of a flash ADC and a capacitor block. In yet another embodiment, the at least one MDAC also include three or more capacitor blocks, each of which can be randomly selected for one of the flash ADCs.

Abstract: A high-precision A/D conversion is realized while the number of external terminals used for an A/D converter is reduced. At the time of sampling, first to fifth switches are turned on and a sixth switch is turned off. Since a first resistor is set to a resistance value optimum for sampling, an impedance in the direction from a node A to the left side and an impedance in the direction from a node B to the left side almost match, and a large noise-cancelling effect is obtained. At the time of successive approximation, the first, second, third, and fifth switches are turned off and the fourth and sixth switches are turned on. Since a second resistor is set to a resistance value optimum for the successive approximation, the impedance in the direction from the node A to the left side and the impedance in the direction from the node B to the left side almost match, and a large noise-cancelling effect is obtained also at the time of successive approximation.

Abstract: A pipeline time-to-digital converter (TDC) is provided. The pipeline TDC includes a plurality of TDC cells. Each of the TDC cells includes a delay unit, an output unit and a determination unit. The delay unit receives a first clock signal and a first reference signal output from a previous stage TDC cell. The delay unit generates sampling phases in a period between a trigger edge of the first reference signal and a trigger edge of the first clock signal, and samples the first clock signal to obtain sampling values in accordance with the sampling phases. The output unit calculates the sampling values for outputting a conversion value. The determination unit uses and analyses the sampling values and the sampling phases for outputting time residue to a next stage TDC cell.

Abstract: An embodiment of the invention provides a single-ended polar transmitting circuit. The single-ended polar transmitting circuit comprises a DAC, a differential-to-single-ended converter, a GmC filter and a load. The GmC filter comprises two gain stages, two filters, two switching devices, a translinear loop and a current mirror. When a second clock signal is high, a first current is conducted through the load, a second switching device and a second gain stage. When a first clock signal is high, a second current is conducted through a first switching device and the second gain stage. The first gain stage has a transconductance Gm1 and the second gain stage has a transconductance Gm2. The bandwidth of the GmC filter is approximately equal to the square root of the quantity (Gm1*Gm2)/(C1*C2). The bandwidth of the GmC filter is substantially a constant value.

Abstract: Provided are a digital radio frequency (RF) converter and an RF converting method thereof. The RF frequency converter includes first and second RF output terminals of a differential form outputting an RF signal; a differential switch selectively connecting first and second nodes into the first and second RF output terminals in response to an oscillating waveform; at least one digital delay device column outputting a plurality of unit bits by sequentially delaying an input bit corresponding to the digital input signal; a front-end processor summing an output of the at least one digital delay device column; a plurality of current sources; and a plurality of first switches corresponding to the plurality of current sources, respectively, and delivering currents of current sources whose number corresponds to the sum value of the front-end processor among the plurality of current sources, to one of the first and second nodes.

Abstract: The configuration of a successive approximation analog to digital converter (ADC) and a method thereof are provided in the present invention. The proposed configuration includes a comparator having an inverting input terminal, a non-inverting input terminal and an output terminal outputting a comparison result, a most significant bit ADC coupled to the non-inverting input terminal, and a least significant bit ADC coupled to the inverting input terminal.

Abstract: System and methods are provided for configuring operation of a remote control by a display device. In one embodiment a method includes detecting user selection of an input of the display device and determining a command for the remote control based on the user selection of the input, wherein the command identifies a configuration for the remote control. The method further includes transmitting the command to the remote control, by the display device, for configuration of the remote control, wherein the configuration specifies operation of the remote control with one or more devices associated with the input.

Abstract: A variable range millimeter wave method and system is disclosed. In a particular embodiment, the system includes a primary mirror having an aperture to reflect millimeter wave energy to a secondary mirror, where the secondary mirror is disposed in front of the primary mirror and adapted to redirect the millimeter wave energy to a millimeter wave sensor/detector of a millimeter wave camera. The millimeter wave camera is configured to process the millimeter wave energy to visually detect concealed objects hidden on a target and an operating frequency of the millimeter wave camera is between 225 GHz and 275 GHz. In addition, the system includes a laser rangefinder, GPS and altimeter to determine a location of the target and to optimize a focus of the millimeter wave camera. A video monitor displays millimeter wave imagery and video images spatially and temporally relative to the millimeter wave imagery to aid targeting.

Abstract: A method and apparatus for transmitting beams of electromagnetic energy. A plurality of beams having a first number of frequencies and a number of beams having a second number of frequencies are transmitted. The plurality of beams and the number of beams overlap each other at an area with a pattern of intensities in the area. Difference frequency signals having a number of difference frequencies equal to a difference between the first number of frequencies and the second number of frequencies are monitored. The difference frequency signals are generated by an object having non-linear electrical characteristics in response to receiving the plurality of beams and the number of beams.

Abstract: This disclosure provides a navigation assisting device, which includes a TT information acquiring module for acquiring target object data by performing target tracking based on an echo received by a radar antenna, an AIS information acquiring module for acquiring target object data based on a Universal Shipborne Automatic Identification System, a maximum-number-of-output-data determination module for determining a maximum number of output data that is the number of target object data that is outputable while the radar antenna revolves once, a priority determination module for performing a priority determination according to a predetermined rule, for the target object data acquired by the TT information acquiring module and the target object data acquired by the AIS information acquiring module, and an output control module for outputting the target object data fewer than the maximum number of output data according to the priorities while the radar antenna revolves once.

Abstract: Methods and systems relating to a cognitive tracking radar system. A radar system determines an immediately preceding state of a target being tracked. Based on this immediately preceding state, the system determines parameters and waveforms which may be used to better illuminate the target. These parameters and waveforms are then used when illuminating the target. The state of the target is then measured from the reflected returns of the illuminating waveform. The newly received measurements then form the basis for the new state of the target and the procedure is repeated.

Abstract: A signal processing apparatus of a radar transceiver is provided. The radar transceiver transmits a frequency-modulated transmission signal and generates beat signals having a frequency difference between transmitted/received signals for respective receiving antennas. A distance detection section detects relative distances of objects based on frequencies of the beat signals. A phase detection section detects phases of the beat signals. A level storage section stores a first level of the beat signals that corresponds to the first object and a second level of the beat signals that corresponds to the second object when the beat signals are generated corresponding to the plurality of objects, respectively.

Abstract: A method for determining characteristics of a RCS test range may include vertically orienting a field probe including an elongated rigid body at a predetermined location within the RCS test range. The method may also include generating incident radar waves at a selected frequency and polarization and pivoting the field probe in a vertical direction broadside to the incident radar waves. The method may additionally include receiving return radar data scattered by the field probe during pivoting of the field probe. The method may further include determining a field distribution along the elongated rigid body of the field probe from the return radar data to determine characteristics of the RCS test range.

Abstract: Hybrid system (1) comprising an elementary hybrid system (2) comprising an extended processing module CALC (100) determining a first protection radius of the hybrid system RHG1, associated with a position quantity G, using a first extended variance/covariance matrix MHYPE1 as a function of a predetermined first false alarm probability PFA1, of a predetermined non-integrity level PNI and of a predetermined first probability PP1 of occurrence of an undetected hardware failure of a satellite positioning receiver.

Abstract: An execution method of a position calculating circuit that calculates a position by receiving a satellite signal transmitted from a positioning satellite and that has an externally readable storage section includes: receiving a selection signal for selecting acquired information, which is information acquired from information obtained from the satellite signal, from the outside; selecting the acquired information on the basis of the selection signal; and storing the acquired information in the storage section and outputting a notice signal, which indicates that the acquired information has been obtained, when the acquired information selected from the satellite signal being received is obtained.

Abstract: A position determining system (PDS) receiver gathers independent location information from multiple sources. These multiple pieces of location information are analyzed to determine consistency of location. If the location is consistent among the various independently gathered location information, then the location information is injected into the PDS positioning process for more efficient acquisition and positioning. Otherwise, if inconsistency is found, then no location information is injected into the PDS positioning process.

Abstract: Disclosed herein is a Satellite Based Augmentation System (SBAS) receiver. The SBAS receiver is configured to receive SBAS messages containing augmentation data and to provide one or more served GPS receivers with augmentation information based on the augmentation data extracted from the received SBAS messages. The SBAS receiver is designed to implement a Finite State Machine (FSM) intended to be common to all served GPS receivers, and configured to evolve based on the received SBAS messages and to store the augmentation data contained therein. The common FSM is further configured to cooperate with a number of correction modules equal to the number of served GPS receivers, each correction module being configured to receive GPS data from a corresponding served GPS receiver, and to compute an augmented position for the corresponding served GPS receiver based on the corresponding GPS data and on augmentation data retrieved from the common FSM.

Abstract: Methods and apparatuses are provided that may be implemented in various electronic devices to identify suspect measurements for use in a position/velocity/time estimation filter and provide corresponding validated measurements that may be either operatively re-weighted in some manner or operatively one-sided isolated in some manner when subsequently considered by the position/velocity/time estimation filter.

Abstract: Embodiments provide radio-frequency systems that can automatically detect, focus-on, and track objects in the environment without the need for expensive electronic scanning and phase-shifting components. Some embodiments are directed to retrodirective systems including: (1) quiescently broadcast pseudorandom-modulated radiation, such as pseudorandom bit sequences, in the absence of a target, over a field-of-view comparable to the beam solid angle of a single element in the transmit array; (2) a receive antenna element or array, in a desired spatial relationship with respect to the transmit antenna array, that receives reflected pseudorandom radiation from a target; and (3) an electronic signal-processing and feedback channel between the receive and transmit arrays that carries out cross-correlation between the received radiation and the transmitted pseudorandom signals and computes complex correlation coefficients to form a re-transmitted beam.

Abstract: Disclosed is an electronic scanning array antenna which can be used as a UWB radar having an occupied band of not less than 500 MHz. An impulse generator is connected to each of a plurality of antenna elements constituting the electronic scanning array antenna, and a transmission trigger time to each of the impulse generators connected to the antenna elements is changed, whereby the phase of radio waves emitted from an antenna is equivalently changed. Moreover, a transmission trigger repletion interval is changed to thereby control a direction of a beam emitted from the array antenna. As means of changing a transmission trigger timing to each of the impulse generators connected to the antenna elements, a method of changing a frequency of a transmission trigger pulse and a method of changing a pulse position are adopted.

Abstract: Processes and systems are presented, for identifying a set of neighbors of a radio transmitter based on available geo-spatial coordinates of radio transmitters in operation around the world. In one aspect, the identified set of radio transmitters can be have a desired size (in terms of number of neighbors and/or radial range). The identified set of radio transmitters can be further customized to include radio transmitters of a specific type, and/or radio transmitters that belong to specific network carriers, and/or other possible grouping criteria.

Abstract: A dual-band antenna includes first and second connecting sections coupled to a ground unit, and first, second, and third radiator sections. The first connecting section extends in a direction from the ground unit toward an inner wall face of a housing of an electronic device. The first radiator section is connected to the first connecting section and is disposed to extend along the inner wall face. A feed-in section extends between the second connecting section and the inner wall face, and has a portion extending parallel to the first radiator section. The second radiator section is connected to the feed-in section and is disposed to extend along the inner wall face. The third radiator section is connected to the second radiator section, extends between the second radiator section and the feed-in section, and has a portion extending parallel to the second radiator section.

Abstract: The present invention is related to a mobile communication device. The device has a ground plane and an antenna. The antenna is disposed on a dielectric substrate and comprises a radiating metal portion, a coupling metal portion, and a shorting metal portion. One edge of the radiating metal portion faces the ground plane and has a distance between the edge and the ground plane. The coupling metal portion is electrically connected to a source via a connecting metal strip. One end of the shorting metal portion is electrically connected to the radiating metal portion, and the other end of the shorting metal portion is electrically connected to the ground plane.

Abstract: A handheld device and a disposition method of a planar antenna are provided. The handheld device includes an appearance, a system ground plane, and the planar antenna. The appearance includes a via. The system ground plane is disposed inside the appearance. The planar antenna is disposed on the appearance and extended to an inner surface of the appearance through the via so as to be coupled to the system ground plane. Thereby, the performance of the planar antenna is improved.

Abstract: A device safety apparatus, in particular a hand-held device safety apparatus, having an antenna unit having at least one antenna element, which is provided for the purpose of transmitting and/or receiving a safety signal. The antenna unit has at least one additional component, which in conjunction with the antenna element is provided to specify a safety zone.

Abstract: First and second housings of a metal sheet are superposed over each other and fixed to each other by bolts to form an element receiving space. An antenna is fixed to the second housing by a bolt so as to be adjacent to the first housing. A hook section is fixed to the first housing. The hook section is inserted in a hole of the antenna, a step-shaped forward lower step section of the hook section is engaged with the peripheral edge of the hole in the antenna, and thus the first housing and the antenna are fixed to each other. The antenna is embedded in resin and covered by the resin.

Abstract: A test system for testing multiple-input and multiple-output (MIMO) systems is provided. The test system may convey signals bidirectionally between two test chambers. Each test chamber may be lined with foam to minimize electromagnetic reflections. Each test chamber may include structure three-dimensional array of test antennas. The test antennas may be mounted in a sphere using an antenna mounting structure. The antenna mounting structure may include multiple rings of different sizes. Test antennas may be embedded in the inner walls of the antenna mounting structure. There may be multiple receiving antennas located in each test chamber. One test chamber may include a device under test inside an array of test antennas and another test chamber may include base station antennas inside another array of test antennas. Signals may be conveyed between the test chambers using channel emulators.

Abstract: A radio communication device is obtained which is provided with an RFID tag function which can ensure the mounting area of each antenna as large as possible, and which is sharable with an LF band RFID system or an HF band RFID system and a UHF band RFID system, while having a communication range equivalent to the communication range of each of an LF band an HF band and a UHF band. The device is provided with an integrated circuit (4) having a communication function in a first frequency band, a conductive object (3) connected to one of input and output terminals of the integrated circuit (4), an integrated circuit (5) having a communication function in a second frequency band, and a second conductive object connected between input and output terminals of the integrated circuit (5). The second conductive object is composed of a spiral conductive object (2). The other of the input output terminals of the integrated circuit (4) is connected to a part of the spirally wound conductive object (2).

Abstract: An antenna device includes a substrate, and a dual-band antenna disposed on a surface of the substrate. The dual-band antenna includes a feed-in section, a first radiator arm, a second radiator arm, a third radiator arm, and a ground section. The feed-in section is for signal feed-in, and has opposite first and second ends. The first radiator arm extends from the first end of the feed-in section and is parallel to the feed-in section. The second radiator arm is connected to the second end of the feed-in section and extends parallel to the feed-in section. The third radiator arm is disposed adjacent to and extends parallel to the first radiator arm in a manner that the feed-in section is disposed between the third radiator arm and the second radiator arm. The ground section is connected to the third radiator arm.