|| List of recent Demodulation-related patents
| Receiver of radio frequency signals|
There is described a receiver of at least one radiofrequency modulated signal deriving from an antenna external to the receiver; the receiver comprises a first stage for the low noise amplification of the radiofrequency modulated signal and a demodulation stage of the above-mentioned signal. The receiver comprises a saw filter adapted to act as a pass band filter about a predetermined frequency for the signal deriving from the first stage, a logarithmic amplifier adapted to amplify the signal deriving from the saw filter, a peak detector of the output signal of the logarithmic amplifier, means adapted to control the gain of the first stage for the amplification of the radiofrequency modulated signal as a function of the output signal (vopeak) of the peak detector..
| Methods and apparatus for generating demodulation candidates using vector candidate sampling (vcs)|
Certain aspects of the present disclosure relate to techniques for generating likely demodulation candidates using vector candidate sampling (vcs). Vcs is used to generate high likelihood candidates for multiple input multiple output (mimo) demodulation that approaches optimal maximum a posteriori (map) performance with reasonable complexity.
| Systems and methods for reporting pilot signal power information in a four branch mimo system|
A base station (102), comprising a first antenna (111) for transmitting a first pilot signal; a second antenna (112) for transmitting a second a pilot signal; a third antenna (113) for transmitting a third pilot signal; and a fourth antenna (114) for transmitting a fourth pilot signal. The base station is configured to transmit pilot signal power information for indicating power values to a user equipment (104), ue, receiving the pilot signal power information.
| Uplink noise estimation for virtual mimo|
A system and methods for estimating a noise power level in an uplink signal for a virtual mimo system is disclosed. The system comprises a demodulation reference signal (dmrs) module configured to obtain a dmrs receive symbol from the uplink signal and determine a dmrs sequence for a first ue in the virtual mimo system.
|Wireless transmission system, wireless communication device and wireless transmission method|
Disclosed herein is a wireless transmission system. Transmission antennas are provided on a first communication apparatus while reception antennas individually corresponding to the transmission antennas are provided on a corresponding second communication apparatus.
|Apparatus and methods for improving demodulation reliability of an uplink high speed-dedicated physical control channel|
The present disclosure presents a method and apparatus for improving demodulation reliability of an uplink (ul) high speed dedicated physical control channel (hs-dpcch) at a base station. For example, the disclosure presents a method for receiving a secondary pilot channel from a user equipment (ue) on an uplink (ul) and demodulating the hs-dpcch using at least the secondary pilot channel.
|Switch driving circuit|
A switch driving circuit for driving a full-controlled power switch is disclosed, including a pulse-width modulation unit, a pulse transformer, an anti-interference module, a pulse-width demodulation unit and a driving-power amplifier. The pulse-width modulation unit converts a driving input signal into a positive-negative narrow pulse-width signal.
|Data slicer for reducing system start-up time and receiver with the same|
A receiver for reducing a system start-up time includes an antenna, an rf (radio frequency) circuit, a demodulation circuit, and a data slicer. The data slicer includes a filter, a comparator, a switch, and a delay generator.
|Receiving apparatus, data receiving method, and channel estimating apparatus and method therefor|
Disclosed are a receiving apparatus, a data receiving method, a channel estimating apparatus and a channel estimating method for multi-user interference (mui) signals according to the present invention. The channel estimating apparatus for mui signals has: a user type determining section configured to determine whether a ue apparatus corresponding to an own station belongs to a first type user or a second type user and to determine demodulation information to use in channel estimation of mui signals based on the type of the ue apparatus corresponding to the own station; and a second channel estimating section configured to perform channel estimation of a multi-user interference signal based on the determined demodulation information to use in channel estimation of mui signals.
|Touch controller with improved diagnostics calibration and communications support|
A touch controller with improved diagnostics calibration and communication support includes a data capture register configured to sample data from one or a plurality of touch panel sense channels at an output of an analog to digital (a/d) converter. The sampled data is bit packed, and a demodulation waveform is captured, correlated with the sampled data.
|Method and apparatus for transmitting data|
Embodiments of the present disclosure provide a data transmission method and an apparatus. The method mainly includes: forming multiple antennas of a bs (base station) into a cross polarization antenna array, and calculating a weighted matrix of a to-be-transmitted data stream of the bs according to channel information between the bs and an ms (mobile station); performing weighted processing on the to-be-transmitted data stream of the bs according to the weighted matrix, and sending a data stream that has undergone the weighted processing from the bs to the ms.
|Enhanced node b and method of transmitting physical-downlink control channels (pdcchs) in a lte-a system|
Embodiments of an enb and method of transmitting pdcchs are generally described herein. In some embodiments, the enb may be configured to transmit pdcchs that are based on a ue-specific reference signal (i.e., a ue-rs).
|Single-chip multi-stimulus sensor controller|
A multi-stimulus controller for a multi-touch sensor is formed on a single integrated circuit (single-chip). The multi-stimulus controller includes a transmit oscillator, a transmit signal section that generates a plurality of drive signals based on a frequency of the transmit oscillator, a plurality of transmit channels that transmit the drive signals simultaneously to drive the multi-touch sensor, a receive channel that receives a sense signal resulting from the driving of the multi-touch sensor, a receive oscillator, and a demodulation section that demodulates the received sense signal based on a frequency of the receive oscillator to obtain sensing results, the demodulation section including a demodulator and a vector operator..
|Wireless communication system, mobile station apparatus and base station apparatus|
Regarding an uplink demodulation reference signal to which a cyclic shift and an orthogonal cover code is applied, ifdm is applied to the uplink demodulation reference signal while retaining the number of bits of control information that specifies a cyclic shift and an orthogonal cover code transmitted from a base station apparatus to a mobile station apparatus. A subcarrier offset and a subcarrier interval based on ifdm are uniquely determined in accordance with the cyclic shift and the orthogonal cover code of the uplink demodulation reference signal, reported from the base station apparatus to the mobile station apparatus..
|Method and arrangement for adapting power of reference signals|
A method and an arrangement in a radio network node for adapting transmission power of resource elements for demodulation reference signals, referred to as “reference elements” are provided. The radio network node is configured for multiple-input multiple-output transmission, referred to as “mimo transmission”, to a user equipment.
|Iterative covariance inversion based on linear receiver designs|
A method of wireless communication includes receiving a wireless signal at a linear receiver, and iteratively computing an inverted covariance matrix in frequency domain, one channel code at a time. The method also includes computing receiver demodulation coefficients based on the inverted covariance matrix and the frequency domain channel estimate or time domain channel estimate.
|Apparatus, systems and methods utilizing adjacent-channel power dependent automatic gain control for digital television demodulation|
An embodiment of the present invention provides a method for digital television demodulation, comprising using adjacent-channel power dependent automatic gain control (agc) for the digital television demodulation, wherein an agc technique takes into account a total power as well as power of adjacent channels to control gain of a gain control amplifier.. .
|Touch screen device|
It is provided a touch screen device applied in an electronic information technology area. In the touch screen device supporting an active capacitance stylus, a demodulation unit demodulates a signal received by a reception unit by two orthogonal signals, and then an amplitude recovery unit recovers an amplitude of the signal received by the reception unit, the amplitude of the signal received by the reception unit can be recovered relatively exactly without the need that the demodulation signal must be synchronous with the signal received by the reception unit (or the signal transmitted from the active capacitance stylus), and there is no need to add additional hardware resources for synchronization in the touch screen device of the embodiment of the present invention compared with the existing detection method which needs to perform synchronization of the demodulation signal and the signal transmitted from the active capacitance stylus in the prior art..
|Transmission of ack/nack bits and their embedding in the reference signal|
Transmitting a ack/nack response in a wireless cellular network by mapping the data value into a cyclic shifted version of a reference signal. A subframe is formed with a plurality of symbols with certain symbols designated as reference signal (rs) symbols.
|Method and a system for transmitting pilot|
The disclosure discloses a method for transmitting a pilot, which includes the step of: selectively transmitting or not transmitting a demodulation pilot in a subframe according to a setting, in a control signaling, of triggering or not triggering a demodulation pilot transmission in the subframe. A system for transmitting the pilot is further disclosed, which includes a pilot selectively transmitting unit configured to selectively transmit or not transmit a demodulation pilot in a subframe according to a setting, in a control signaling, of triggering or not triggering a demodulation pilot transmission in the subframe.
|Receiver with dual band pass filters and demodulation circuitry for an external controller useable in an implantable medical device system|
Receiver and demodulation circuitry for an external controller for an implantable medical device is disclosed. The circuitry comprises two high quality-factor band pass filters (bfps) connected in series.
|Ofdm modulation signal demodulator, receiving apparatus, and receiving and displaying apparatus|
An ofdm modulation signal receiving apparatus by which a user can generally grasp a reception state of an ofdm modulation signal and take measures to improve the reception quality thereof. The ofdm modulation signal receiving apparatus includes: a demodulating part that demodulates an ofdm modulation signal to obtain a demodulation signal value on a modulation coordinate for each sub carrier; an intra-interval total sum value calculating part that sums up, for each frequency distribution interval of the sub carriers, comparison result values obtained by comparing the sub carrier signal value to a predetermined determination value to calculate an intra-interval total sum value of each frequency distribution interval; and a selection storage part that stores a piece of noise level data according to the intra-interval total sum value for each frequency distribution interval..
|Inter-vehicle alert system with nagable video look ahead|
An apparatus includes a video encoder, a camera and radio frequency modulation circuitry. The radio frequency modulation circuitry is operative to modulate a radar signal to include video data.
|Receiver and digital demodulation circuitry for an external controller useable in an implantable medical device system|
Receiver and digital demodulation circuitry for an external controller for communicating with an implantable medical device (imd) is disclosed. A digital signal processor (dsp) is used to sample received analog data transmitted from the imd at a lower rate than would otherwise be required for the frequency components in the transmitted data by the nyquist sampling criteria.
|Method and system for notification of scrambling code identification signalling group|
Disclosed in the present disclosure is a method for notification of scrambling code identification signalling group, and the present disclosure comprises: a network side transmits a scrambling code identification signalling group to a receiver; the receiver generates a corresponding scrambling code sequence of a demodulation pilot according to the scrambling code identification signalling group, generates a pilot symbol sequence according to the scrambling code sequence of the demodulation pilot, and performs channel estimation according to the pilot symbol sequence. The present disclosure also provides a system for implementing the notification of scrambling code identification signalling group.
|Filter-based dpsk communications system|
A filter-based method of demodulating differentially encoded phase shift keyed (dpsk) optical signals, such as commonly used binary-dpsk (dbdpsk) and quadrature dpsk (dqpsk) signals, that can achieve optimal receiver sensitivity is described. This approach, which combines filtering and differential phase comparison, can reduce the complexity and cost of dpsk receivers by obviating delay-line interferometer-based demodulation.
|Reception apparatus, reception method, program, and reception system|
The present technique relates to a reception apparatus, a reception method, a program, and a reception system capable of starting decoding of data in a short time. A reception apparatus according to an aspect of the present technique includes a demodulation unit configured to demodulate a modulated signal used to transmit transmission control information about data and the data to be transmitted, a first decoding unit configured to decode the transmission control information obtained by demodulation performed with the demodulation unit, a storage unit configured to store the data obtained by demodulation performed with the demodulation unit, and a second decoding unit configured to decode the data stored in the storage unit on the basis of the transmission control information decoded by the first decoding unit.
|Method and apparatus for a wireless communication receiver using serial localization with indecision|
In one aspect, the present disclosure provides an advantageous generalization of a slic receiver structure, by allowing multiple solutions to survive at any one or more of the serial stages included in the slic receiver. Where any given stage produces multiple solutions, the next stage of the slic receiver processes those multiple input solutions to produce multiple output solutions.
|Radio module, radio assembly and corresponding method|
A radio module is disclosed that includes a baseband device, a layer device, and a multi radio antenna. The baseband device is arranged to perform digital modulation and/or demodulation.
|Method and device for adjusting demodulation pilot frequency in wireless communication system|
Disclosed is a method for configuring a pilot frequency in a wireless communication system, comprising: on the basis of at least one item among a current wireless channel characteristic parameter, device capability information of a correspondent node, and system requirement information, configuring in real-time a pilot frequency for different transmissions during a transmission process; and transmitting the configuration result to the correspondent node. Also disclosed is a corresponding device for configuring the pilot frequency.
|Method for generating and transmitting a reference signal for uplink demodulation in a clustered dft-spread ofdm transmission scheme|
Disclosed is a method for generating and transmitting a reference signal in a clustered dft-spread ofdm transmission scheme. A method for generating and transmitting a dm-rs in a clustered dft-spread-ofdm scheme comprises: a step of generating dm-rs sequences corresponding to the number of clusters allocated for an uplink transmission; and a step of mapping the generated dm-rs sequences to the relevant dm-rs symbol positions for each cluster.
|Method and apparatus for transmitting/receiving downlink control channel in wireless communication system|
The present invention relates to a wireless communication system, and more particularly, discloses a method and a downlink reception apparatus, in which at least one cell is set, for transmitting and receiving a downlink control channel. According to one embodiment of the present invention, the method for receiving the physical downlink control channel (pdcch) by the downlink reception apparatus in which at least one cell is set, comprises: a step of receiving a virtual resource block (vrb) set setting information for a potential pdcch transmission; and a step of monitoring the vrb set and demodulating the pdcch, wherein information on the vrb set, with regard to a cell for which pdcch non-crossed interleaving is set or to a cell for which the pdcch demodulation is set, based on the downlink reception apparatus-specific reference signal, can be commonly defined for a first slot and a second slot in a downlink subframe..
|Base station, terminal, communication system, communication method, and integrated circuit|
A base station is provided in which a terminal efficiently controls a demodulation reference signal for a data signal transmitted from the base station in a wireless communication system in which the base station and the terminal communicates with each other. The base station that performs a communication with the terminal includes a data signal generation unit that generates a data signal for terminal, and a demodulation reference signal for a data signal multiplexing unit that multiplexes a demodulation reference signal for a data signal, which is a known signal for demodulating the data signal, into the data signal.
|Receiving device, receiving method, program, and receiving system|
The present technology relates to a receiving device, a receiving method, a program, and a receiving system which may improve reception performance in the case of receiving a signal with a variable frequency band. A receiving device according to an embodiment of the present technology includes a demodulation unit configured to convert a received signal to a baseband signal in the case where a first frequency differs from a second frequency, wherein the first frequency is a center frequency in a band of the received signal, the second frequency is a center frequency in a band of a desired signal included in a part of the band of the received signal, and a dc component of the baseband signal is to be a frequency in the vicinity of the second frequency.
|Transmission method, transmission apparatus and reception apparatus|
A method of generating modulation signals is disclosed including generally three steps. A plurality of modulation signals are generated, each of which is to be transmitted from a different one of a plurality of antennas in an identical frequency band, wherein each modulation signal includes a pilot symbol sequence including a plurality of pilot symbols used for demodulation.
|Broadcast signal transmitter, broadcast signal receiver, and method for transceiving broadcast signals in broadcast signal transceivers|
A broadcast signal receiver according to the present invention comprises: a demodulator for performing ofdm demodulation on a received broadcast signal including a frame for the delivery of a broadcast service: a frame demapper for outputting the frame, the frame including a preamble that contains first signaling information, and a plurality of link-layer-pipes (llps) that contain plp data, second signaling information and third signaling information, with the plp data including a base layer and an enhancement layer of the broadcast service; and a decoder for decoding the first signaling information, for decoding the second and third signaling information, and for selectively decoding the plp data by using the third signaling information.. .
|Method and apparatus for retransmission processing in a communication receiver|
A method and apparatus for retransmission processing in a communication receiver includes improving the performance of incremental redundancy (ir) combining and retransmission processing at minimal increased complexity. One aspect of these improvements involves the use of prior decoding results, if the decoding block quality is above a threshold value, rather than or in addition to prior demodulation results, in retransmission processing.
|Systems, methods, apparatus, and computer-readable media for generating obfuscated speech signal|
Arrangements are described that may be used to reduce the intelligibility of speech using masker signals which are obfuscated yet correlated versions of the speech. Other applications of pitch analysis and demodulation are also described.
|Orthogonal signal demodulation|
A modulation transmission technique comprises placing orthogonal subcarriers across an arbitrary-wide band of frequencies without a fixed pre-defined center frequency. Receivers demodulate only the sub-group of subcarriers in which they are to receive data.
|Demodulation reference signals for retransmission in wireless communication|
Provided is a method for wireless communication which includes transmitting codewords according to an initial transmission rank, receiving downlink transmissions indicating at least one of the codewords to be retransmitted, constructing a demodulation reference signal (dm-rs) to be sent with the at least one codeword to be retransmitted, and retransmitting the at least one codeword with the dm-rs according to a retransmission rank. The downlink transmissions may include one or more physical hybrid automatic retransmission request indicator channels and the dm-rs may be constructed based at least in part on information in the downlink transmissions..
|Method for receiving downlink signal and method for transmitting same, and device for receiving same and device for transmitting same|
The present invention relates to a method for a transmission device to transmit data and a reference signal for demodulation for the data, to a reception device. The transmission device of the present invention appropriately configures the reference signal for demodulation of the data being transmitted to the reception device by the transmission device, and transmits the reference signal to the reception device with the data.
|Terminal device, base station device, and wireless communication system|
A dmrs generator generates reference signals used for demodulation to which orthogonal codes, which are a code for one layer and a code for another layer being orthogonal to each other, are assigned. Concerning each of layers up to the predetermined number of layers, codes are assigned to the reference signals according to the same rules as assignment rules employed in a different terminal device.
|Signal processing device, signal processing method, and program|
The present technology relates to a signal processing device, a signal processing method, and a program capable of appropriately demodulating a desired signal from a multiplexed signal obtained by multiplexing a plurality of signals. A preamble signal is detected from a multiplexed signal obtained by multiplexing a plurality of signals.
|Method and device for transmitting/receiving digital broadcast signal|
The present invention relates to a device and a method for transmitting/receiving a digital broadcast signal having a three-dimensional image. According to one embodiment of the present invention, a device for receiving a digital broadcast signal comprises: a tuner which receives a digital broadcast signal of a transport packet that contains signaling data and a video stream for implementing a three-dimensional image; a demodulation unit which demodulates said received digital broadcast signal; a decoding module which extracts mode conversion information from said demodulated digital broadcast signal; and an output formatter which outputs a decoded image signal on the basis of said mode conversion information..
|Wireless detection devices and wireless detection methods|
A wireless detection device is provided, comprising a voltage control oscillation unit, a transceiving unit, demodulation unit and processing unit. The voltage control oscillation unit generates different oscillation signals according to analog control voltages and corresponding injection signals.
|Transmitter apparatus, receiver apparatus, communication system, communication method, and integrated circuit|
A transmitter apparatus to transmit to a plurality of receiver apparatuses a data signal at the same timing and on the same frequency, includes a transmitter unit that transmits a demodulation reference signal addressed to a first receiver apparatus and a demodulation reference signal addressed to a second receiver apparatus different from the first receiver apparatus at the same timing and on the same frequency.. .
|Network information for assisting user equipment|
A method, an apparatus, and a computer program product for wireless communication are provided. The apparatus may be a ue that acquires information regarding an interfering non-serving cell and uses the information to improve decoding of serving cell signals.
|Selection of precoding vectors in lean-carrier systems|
In a system using spatial precoding, in the event that reliable channel state information is unavailable, a transmitting node artificially creates a randomization of the precoders applied to the transmitted signal. Different precoding vectors are applied to both transmitted data and demodulation reference signals for each of several groups of time-frequency resources, where the precoding vectors vary randomly or pseudo-randomly from each group of time-frequency resources to the next frequency-adjacent group or groups, or to the next time-adjacent group or groups, or both.
|Phase shift reduction in touch signals|
Phase shift reduction in touch signals is disclosed. Touch signals with phase shifts can be demodulated with i- and q-demodulation waveforms to generate the i and q components of the signals.
|Transmitting apparatus, transmitting method, receiving apparatus and receiving method|
Modulated signal a is transmitted from a first antenna, and modulated signal b is transmitted from a second antenna. As modulated signal b, modulated symbols s2(i) and s2(i+1) obtained from different data are transmitted at time i and time i+1 respectively.
|Receiving device, receiving method, and program|
The present technique relates to a receiving device, a receiving method, and a program for realizing a prompt start of data demodulation. A receiving device of one aspect of the present technique includes: a detecting unit that detects a first preamble signal from a frame signal having a frame structure that contains the first preamble signal indicating a frame partition, a second preamble signal containing control information to be used in processing a data signal, and the data signal, the second preamble signal being transmitted after the first preamble signal; an accumulating unit that accumulates the second preamble signal when the first preamble signal is detected; and a processing unit that processes the data signal based on the control information contained in the second preamble signal accumulated in the accumulating unit, the data signal being contained in the same frame as the second preamble signal accumulated in the accumulating unit.
|Spatial information detection device|
The spatial information detection device emits, to a space including an intended area, signal light defined as light modulated with a modulation signal defined as a square wave signal having high and low level periods appearing alternately, each of the periods having its length randomly selected from integral multiples of a unit time period. The device generates signal electric charges by accumulating electric charges generated in response to light from the space in a collection time period determined by a demodulation signal defined as a signal having the same waveform as that of the modulation signal or that of the inverted modulation signal.
|System and method for hardware sharing|
A method of transceiving data includes providing a wireless transceiver chip that supports multiple wireless standards for transceiving data packets, wherein a first wireless standard comprises a first modulation and demodulation scheme, and wherein a second wireless standard comprises a second modulation and demodulation scheme, and wherein the first modulation and demodulation scheme is incompatible with the second modulation and demodulation scheme; activating only one phy layer of the wireless transceiver chip during the transceiving of the data packets; using a mac layer of the wireless transceiver chip to specify whether the first or second wireless standard is to be used for a given transceiving of the data packets; and the phy layer receiving instructions from the mac layer regarding which wireless standard is to be used for the transceiving of the data packets using hardware that is shared by the phy layer corresponding to both wireless standards.. .
|Co-processor for complex arithmetic processing, and processor system|
In order to enable to quickly and efficiently execute, by one system, various modulation/demodulation/synchronous processes in a plurality of radio communication methods, a co-processor (22) for complex arithmetic processing, which forms a processor system (100), includes a complex arithmetic circuit (22) that executes for complex data a complex arithmetic operation required for radio communication in accordance with an instruction from a primary processor (10), and a memory controller (20, 21) that operates in parallel with the complex arithmetic circuit and accesses a memory. A trace circuit provided in the complex arithmetic circuit (22) monitors arithmetic result data for first complex data series sequentially read from the memory, and detects a normalization coefficient for normalizing the arithmetic result data..
|Method and apparatus for parallel demodulation of high symbol rate data streams in a communications system|
A dynamic and flexible architecture and methods for demodulation of high data-rate streams with high symbol-rates, such as in satellite communications systems or computer network communications systems, is provided. A data stream of a data transmission is received, the data stream corresponding to a plurality of data symbols.
|Single stream phasetracking during channel estimation in a very high throughput wireless mimo communication system|
In a multiple-input, multiple-output (mimo) system, a wireless node's receive chain demodulation function is enhanced to include phase tracking. Vht long training fields (ltfs) embedded in a frame preamble are used for phase tracking.
|Apparatus for cooperative mimo ofdm using non-data-aided timing synchronization|
An apparatus for cooperative multiple-input multiple-output (mimo) orthogonal frequency-division multiplexing (ofdm) is provided. The apparatus uses a new carrier assignment scheme (cas) called generalized interleaved cas, along with non-data-aided timing synchronization.
|Device for broadband reception by autotransposition and application to the detection and characterization of radioelectric emissions|
Use of an antennal base formed of two antennas which pick up the emissions present and produce two radioelectric signals s1 and s2. These two signals are used to produce at least one intermediate-frequency signal fl by demodulation of one of the two signals by the other (autotransposition).
|Receiving apparatus, transmitting apparatus and line connection switching method|
A receiving apparatus in a wireless communication system that involves both data transmission using a virtual transmission path in which a plurality of wireless lines of which modulation method is variable are virtually consolidated into one, and time-division multiplex transmission, includes a releasing unit that releases, when a failure occurs in a current line used in the time-division multiplex transmission, one wireless line in the plurality of wireless lines constituting the virtual transmission path from the virtual transmission path; a demodulation unit that changes a modulation method used for demodulation of the one wireless line released from the virtual transmission path by the releasing unit to a modulation method used in the time-division multiplex transmission; and a switching unit that switches line connection from the current line in which the failure has occurred to the one wireless line of which modulation method has been changed by the demodulation unit.. .
|Method of driving and detection for capacitive touch screen and device thereof|
A method of driving and detection for a capacitive touch screen and a device thereof are provided. The method includes: sending, from a driving side, excitation signals through a plurality of channels simultaneously during the same driving and detection time period; receiving, by each of receiving channels at a receiving side, a charge signal generated from the excitation signals through coupling capacitances at corresponding touch detection points, and performing detection, which includes: converting and amplifying the charge signal into a voltage signal, and performing signal demodulation and analog-to-digital conversion on the voltage signal; and storing digital signals obtained from the analog-to-digital conversion, and analyzing the digital signals by a controller to obtain a detection result.
|Demodulation circuit and rfid tag including the demodulation circuit|
An object is to provide a demodulation circuit having a sufficient demodulation ability. Another object is to provide an rfid tag which uses a demodulation circuit having a sufficient demodulation ability.
|Method and system for multiplexed transport interface between demodulators (demods) and set-top box (stb) system-on-chips (socs)|
A multiplexed transport interface (mtsif) may be utilized during communication between a demodulation module and a video processing system-on-chip (soc). The mtsif may enable concurrent demodulation of a plurality of input modulated video streams, via a plurality of demodulator chips within the demodulation module, by multiplexing data generated by the demodulator chips via the mtsif during communication between the demodulator module and the video processing soc.
|Satellite navigation/dead-reckoning navigation integrated positioning device|
A satellite and/or dead-reckoning navigation integrated positioning device with improved accuracy including position, velocity, etc. Is disclosed.
|Split microwave backhaul architecture allowing for bandwidth changes between an indoor and outdoor unit|
A microwave backhaul architecture for remodulating data to increase a capacity of a corresponding wireless link is provided. The microwave backhaul architecture includes an indoor communication unit (idu) configured to perform modulation and/or demodulation of the data and to perform a conversion of the data.
|Method and apparatus for transmission of physical channel in dwpts|
For use in a wireless network, a method for scheduling a downlink pilot time slot (dwpts) subframe is provided. The method comprises expanding physical resource blocks (prbs) in a subframe prior to a dwpts subframe to include resource elements (res) of the dwpts subframe, a number of ofdm symbols of the dwpts subframe being less than or equal to a threshold ofdm symbol number.
|User terminal, radio base station apparatus and radio communication method|
The present invention adequately controls feedback control information in uplink transmission in a system band formed with a plurality of ccs. The present invention provides a data information demodulation section, which demodulates downlink shared channel signals of ccs from a radio base station apparatus, a retransmission check section, which checks retransmission and outputs a retransmission acknowledgement signal in response to the downlink shared channel signal of each of the plurality of ccs, a control information demodulation section, which demodulates downlink control information and detects the number of transport blocks, and a channel selection control section, which, with reference to a mapping table in which combinations of retransmission acknowledgement signals for the downlink shared channel signals of the plurality of ccs are defined using a plurality of radio resources and phase modulation bit information, determines radio resources to use to transmit the retransmission acknowledgement signals from a radio resource of an uplink control channel of a specific cc, and changes the content of the mapping table according to the number of transport blocks of the specific fundamental frequency block..
|Optimized signaling of demodulation reference signal patterns|
Orthogonality in cyclic shift (cs) and orthogonal cover code (occ) selection for dmrs in mimo is improved by new ndmrs to ndmrs(2) mapping patterns. Values in the mapping tables are arranged in sets, with minimum cs separation between the values in each set.
|Method for initializing sequence of reference signal and base station using the same|
A method and an apparatus are provided for scrambling sequence initialization for downlink demodulation reference signal (dl dmrs) applied to the multi-user (mu) multi-input multi-output (mu-mimo) in a coordinated multiple point (comp) scenario. The value of virtual slot index in the sequence initialization of the dl dmrs can be dynamically selected from two candidates and tied to the virtual cell id and/or the physical downlink shared channel (pdsch) scrambling id.
|Metal detector for locating metal objects|
The invention relates to a method for locating metal or metal-containing objects and materials, currents in at least two emission coils being regulated in relation to each other such that a reception coil output signal received by at least one reception coil or average values of demodulation phases generated from the reception coil output signal are regulated in relation to each other continuously to be “zero” even when exposed to metal. The amplitude(s) of the required controlled variable(s) is/are detected as a value by demodulation, preferably at least at 0° and at a demodulation which is set off by 90° and is/are equalized, thereby improving the method such as to allow a reliable detection of an object to be detected even if other metal objects are present in the area of detection..