Abstract: A system including an estimation module, a processing module, and a control module. The estimation module is configured to generate a first set of channel estimates for a plurality of subcarriers of a received signal. The processing module is configured to generate a second set of channel estimates for the plurality of subcarriers, in which the second set of channel estimates are generated based on the first set of channel estimates. The control module is configured to estimate a preamble sequence in the received signal based on each of (i) the first set of channel estimates and (ii) the second set of channel estimates.

Abstract: A bit sequence generation apparatus includes a glitch generating circuit that generates a glitch, a sampling circuit that samples the glitch waveform generated by the glitch generating circuit, and a glitch shape determination circuit that generates 1-bit data indicating either 1 or 0, based on the glitch waveform sampled by the sampling circuit, and generates a bit sequence composed of a plurality of generated 1-bit data. The bit sequence generation apparatus can provide a PUF circuit that is able to generate highly randomized secret information even in a device with a low degree of freedom of alignment and wiring and that does not violate the design rules.

Abstract: A composite signal including a plurality of component signal streams is processed using QR-decomposition to detect symbols and calculate a decision metric for each of the signal streams (202). Soft serial interference cancellation is performed on the composite signal based on the symbols detected for different ones of the signal streams and a ranking of the signal streams (204). The symbols are re-detected and the decision metric re-calculated for each signal stream based on soft serial interference cancellation results (206). The different decision metric calculations for at least one of the signal streams are compared to determine whether symbol detection is more accurate with or without soft serial interference cancellation (208). The signal streams are decoded using symbols detected based on soft serial interference cancellation results when symbol detection is determined to be more accurate with soft serial interference cancellation (210).

Abstract: The present invention provides method and apparatus for designing modulation and coding set of communication System. The method for designing modulation and coding set designs a proper set of modulation and coding schemes (MCS), based on probability distribution of the quality of received signal in the communication system, so as to optimize the whole performance of the communication system. The method comprises the steps of: acquiring the probability distribution of the quality of the received signal in the communication system; performing a calculation on the target performance of the communication system based on the acquired probability distribution of the quality of the received signal and a plurality of MCSs, to design a proper set of MCSs for the communication system, so that a region where the probability of the quality of the received signal appears more frequently are provided with more levels of the MCSs.

Abstract: Channel state information (CSI) is determined for a single data stream transmitted via a plurality of antennas. Cophasing angles are determined for the plurality of antennas using the CSI. The cophasing angles are quantized, and explicit beamforming feedback is generated based on using the quantized cophasing angles as indices into a look-up table.

Abstract: A wireless remote control system is provided. This system includes a remote controller, plural detectors, and a decision module. The detectors are used for detecting the frequency a wireless signal emitted by the remote controller and respectively generate a detecting result. Based on at least one frequency difference between the detecting results, the decision module determines how the remote controller is moving and thereby generates a control signal. Because the decision module needs no knowledge of the frequency of the emitted wireless signal, the wireless remote controller has the advantages of small size, low cost, and low power consumption.

Abstract: A diversity antenna system and method comprising a plurality of antennas, a plurality of switches and a plurality of phase shifters, wherein the switches and the antennas are selectively opened and closed or switched on an off to achieve equiphasing. This system separates the noise signal from the useful signal in order to achieve a proper determination of the different phases. In addition there is a receiver which is configured to receive the output of the diversity system. The logic control unit is configured to perform particular steps or algorithms in order to achieve equiphasing of the received signals.

Abstract: A message transmitting signal comprised of a sequence of high level and low level pulses arranged to provide a message, such as the IR bit pattern output by a remote control device, is analysed. Distinct durations during which pulses are at a high level are formed into a first table and distinct durations during which the pulses are at low level are formed into a second table. An index is linked to the first and second tables, the index identifying the order, level and distinct duration of the pulses in the signal. The index can be categorised to identify the protocol of the message and can be used to recognise protocols and, in a universal remote control device, to generate message transmitting signals.

Abstract: Various embodiments facilitate home automation via a receiving device. In one embodiment, a home device manager is provided for execution on a receiving device, such as a set-top box. The home device manager is configured to discover home devices and to obtain device control information from the discovered devices. The home device manager is further configured to, based on the obtained device control information, present a user interface operable by a user to specify commands for controlling a home device, receive a specified command, and control the home device by transmitting the specified command to the home device. This abstract is provided to comply with rules requiring an abstract, and it is submitted with the intention that it will not be used to interpret or limit the scope or meaning of the claims.

Abstract: A buffer control circuit includes a current supply unit configured to supply current and adjust the current in response to codes, an amplifying buffer configured to operate using the current and output a value obtained by comparing a reference potential and the reference potential, a second buffer configured to buffer an output of the first buffer, and a code generation unit configured to generate the codes in response to an output of the second buffer.

Abstract: A wireless receiver including receiving antennas, frequency-space transformers, noise wave removers, a back-end signal processor, a pattern detector, a broadcast interruption detector, and a back-end controller. The frequency-space transformers convert signals received by the antennas into frequency-space signals. The noise wave removers each at least perform the calculation of a transmission line coefficient matrix and the calculation of an inter-antenna covariance matrix on the frequency-space signals. A controller controls the back-end signal processor to operate when the multicarrier transmission waves have been detected to be interrupted. The noise wave removers each perform the calculation of the inter-antenna covariance matrix when a broadcast interruption detector has detected the interruption of the multicarrier airwaves. Thus, the wireless receiver removes noise generated within it, thereby having high reception sensitivity.

Abstract: A system and method for synchronous spectrum sharing for use in a wireless communication system based on orthogonal frequency-division multiplexing (OFDM) or orthogonal frequency division multiple access (OFDMA) signaling is disclosed. The system includes a frame detector configured to detect a frame of a broadcast waveform and extract sub-carrier information from the frame. Sub-carrier information may include information on usable sub-carrier and pilot sub-carriers for secondary users. The system allows transmitting data from the secondary user node in unused sub-carriers thereby making efficient use of unused or idle spectrum. Accordingly, secondary users of wireless communication systems can dynamically form ad-hoc mesh network communications in fixed or mobile scenarios.

Abstract: Certain embodiments of the present disclosure provide a method for frequency-domain gain control in system utilizing orthogonal frequency division multiplexing (OFDM) multiple input multiple output (MIMO). The proposed method reduces the complexity of the system while maximizing the internal accuracy of the OFDM MIMO decoder and preserving the performance of the system.

Abstract: A communication system comprises a transmitter configured to binary data and a receiver configured to the data transmitted from the transmitter. The transmitter counts the number of bits of any one of binary value of a data section of the transmission data, and determines whether or not inversion processing should be performed in accordance with the counted number. When performing the inversion processing, the transmitter reverses each bit of the data section of the transmission data, adds inversion information showing that the bits have been reversed, and transmits the transmission data. The receiver receives the transmission data and determines whether or not inversion processing should be performed for the reception data, on the basis of the inversion information of the reception data. When performing the inversion processing, the receiver reverses each bit of the data section of the reception data.

Abstract: Multi-user (MU-) MIMO systems with quantized feedback are designed to maximize the sum-rate via scheduling and linear precoding. To maximize throughput over the network, quantized CSIT is sent through a low-rate feedback link feedback from a plurality of users back to a base station. The base station then determines a subset of the plurality of users to transmit one or more signals to based on the received feedback and determines a preceding matrix based on the received feedback from the plurality of users wherein the precoding matrix maximizes a sum-rate throughput for the subset of the plurality of users. Additionally, based on the received feedback, the base station designs a quantization codebook. This codebook may be designed off-line and/or online. The codebook and/or precoding matrix are used to transmit signals to the users.

Abstract: Provided are: plural circuit components including a circuit component which constitutes a receiving unit receiving a signal sequence which is arranged so that a desired signal and a signal different from the desired signal are lined up in time series, the desired signal indicating desired data which includes at least one of text data, sound data, image data, and a computer program product; and an operating parameter changing unit which changes an operating parameter of at least one of the plural circuit components, during a period in which the receiving unit receives the signal different from the desired signal.

Abstract: Examples are disclosed for transmitting and receiving schemes for multiuser single-carrier space time spreading (STS) with frequency domain equalization.

Abstract: A method for transmitting and receiving a precoded signal in a Multi-Input Multi-Output (MIMO) communication system is provided. In the method, a preceding matrix is selected from a codebook including one or more preceding matrices of each rank, each of the preceding matrices including a unitary matrix modified by an antenna selection element. A signal for transmission is then precoded by applying the selected preceding matrix to the signal for transmission and the precoded signal is transmitted through a selected antenna.

Abstract: In a transmission diversity control method in which a request to start or stop transmission diversity is issued by a reception station to a transmission station having a transmission diversity function, the reception station is provided with an equalizer to reduce multipath interference on the basis of a signal correlation, a transmission diversity start request is issued from the reception station to the transmission station when an effect generated by the equalizer is small, and a transmission diversity stop request is issued from the reception station to the transmission station when the effect generated by the equalizer is large.

Abstract: The present patent application discloses a method and apparatus for decoding, comprising decoding signals iteratively, mutually exchanging extrinsic information, calculating APP LLRs for both systematic and parity bits and making a hard decision after a plurality of iterations is completed based on accumulated soft information. The present patent application also discloses a method and apparatus for post decoding soft interference canceling, comprising generating updated a posteriori probabilities for systematic and parity bits from a turbo decoder, mapping the posteriori probabilities to soft symbols, quantizing the soft symbols, re-encoding a data packet, filtering a chip sequence, reconstructing an interference waveform, and scaling reconstruction filter coefficients using the symbols.

Abstract: A method of Dirty Paper Coding DPC using nested lattices is disclosed. The complexity of DPC can be reduced by scaling nested lattices and mapping interference to a lattice point of the scaled lattice.

Abstract: An electronic apparatus with remote control functions including an operating module, a control module and a transmitting module is disclosed. The operating module generates at least one operating signal. The control module is coupled to the operating module and generates at least one first control signal and at least one second control signal according to the operating signal. The transmitting module is coupled to the control module and transmits the first control signal and the second control signal. The first control signal is within a first frequency range, and the second control signal is within a second frequency range.

Abstract: Methods and systems are described for processing a signal in wireless communications. The signal may have synchronization information. A method of processing a signal having synchronization information may include receiving the signal, and determining a truncation region of the time domain estimated channel, the estimated channel having taps. The method further includes processing the channel taps within the truncation region.

Abstract: A telephonic device includes at least one control element in the form of, or positioned in a configuration on the control device corresponding to, a part of a face. The control element performs a function of the device associated with the part of the face. In certain embodiments, the at least one control element is in the shape and/or position of a mouth for answering an incoming telephone call, placing an outgoing telephone call, activating a microphone, and/or performing mute/unmute functions. In additional embodiments, the at least one control element is in the shape and/or position of an eye for display of one or more stored numbers. In additional embodiments, the at least one control element is in the shape and/or position of an ear for adjusting volume.

Abstract: A handheld electronic apparatus for communicatively coupling a user and a display device is disclosed. In one embodiment, the handheld electronic apparatus includes a user interface configured to accept an user input, the user interface further includes a first interface configured to accept the user input via a keypad, and a second interface configured to accept the user input via a touchpad. The handheld electronic apparatus also includes a processor configured to generate a signal by processing the user input, and a transmitter adapted to transmit the signal generated by the processor to the display device.

Abstract: System and method for evaluating a transmitter by estimating IQ impairments in an orthogonal frequency division multiplexed (OFDM) signal generated by the transmitter. The OFDM signal may be received. The OFDM signal may represent a stream of symbols, each comprising a plurality of subcarriers. At least a subset of the subcarriers may be pilot subcarriers. The pilot subcarriers may be grouped into one or more groups of pilot subcarriers based on one or more conditions: a pilot subcarrier which satisfies a condition in its relation to a mirror subcarrier may be grouped with other pilot subcarriers which also satisfy the condition in relation to mirror subcarriers. An estimate of one or more of gain imbalance or quadrature skew of the OFDM signal may be calculated based on the one or more groups of pilot subcarriers and the one or more conditions. The estimate may be used to evaluate the transmitter.

Abstract: The present invention is directed to a system and method which allows a device user who is within a sterile environment to interact remotely with a device physically located outside of the sterile zone. In one embodiment, the remote link is wireless and allows the operator to adjust critical controls without breaking the sterile environment. The remote device is designed to be sheathed in sterile sheaths and further designed, in one embodiment, to keep the remote control element from physically interacting with the patient and in some cases with the device operator. In one embodiment, the remote device operator interacts with the remote device verbally.

Abstract: An apparatus and method for transmitting/receiving an S-SCH in an Institute of Electrical and Electronics Engineers (IEEE) 802.16m wireless communication system are provided. A method for transmitting, by a transmitter, a Secondary Synchronization CHannel (S-SCH) in a communication system includes generating a sequence depending on a cell IDentification (ID), determining a subcarrier set comprising subcarriers to map the generated sequence, based on a Fast Fourier Transform (FFT) size and a segment ID, and mapping the generated sequence to the subcarriers of the determined subcarrier set.

Abstract: A movable barrier operator remote control transmitter kit comprises a transmitter (200) and, if desired, a user discernable listing (402) of a plurality of different remote control signal instruction protocols. This transmitter can be configured and arranged to automatically incrementally configure the transmitter using a series of protocols with each assertion of a user input (203) and also to cause the test configured transmitter to transmit a test transmission (701) to permit the user to ascertain whether a corresponding movable barrier operator responds positively. This listing can present the protocols in an order that matches a sequential order (401) by which the transmitter controller (201) will incrementally configure and test the transmitter. User discernable instructions (601) can provide advice to a user with respect to using the list (402) to quickly advance through the listing (401 to begin the compatibly testing with a particular selected candidate protocol.

Abstract: Described is a space-time digital power amplifier that can be used to generate an arbitrary waveform for a carrier signal. The space-time digital power amplifier employs temporal modulation of transmit signals generated by an array of transmitter modules. The RF signals transmitted from the array are spatially combined through free space propagation to generate the desired waveform. Advantageously, no digital-to-analog conversion is required and upconversion is unnecessary. The digital power amplifiers for the transmitter modules can be combined in a single chip package. The space-time digital power amplifier enables high power efficiency to be realized using pulse-shaped waveforms thus eliminating any need for the power amplifiers to operate over a wider bandwidth with a spectrally unconfined waveform.

Abstract: A DTV transmitting system includes a pre-processor, a block processor, and a trellis encoder. The pre-processor pre-processes enhanced data by expanding the enhanced data at an expansion rate of 1/H. The block processor includes a first converter, a symbol encoder, a symbol interleaver, and a second converter. The first converter converts the expanded data into symbols. The symbol encoder encodes each valid enhanced data bit in the symbol at an effective coding rate of 1/H. The symbol interleaver interleaves the encoded symbols, and the second converter converts the interleaved symbols into enhanced data bytes. The trellis encoder trellis-encodes the enhanced data outputted from the block processor.

Abstract: A universal game console controller that has an LCD presenting, depending on what type of game console a user has input, a controller key layout for a first type of game console or a controller key layout for a second type of game console.

Abstract: A code sequence generator (20) comprising a memory (22), a feedback logic network (24) and an output logic network (26) which is configured to perform a logic function on the contents of elements (26) of the memory (22) to generate bits of the code sequence, wherein the code sequence generator (20) outputs a plurality of bits of the code simultaneously.

Abstract: An arithmetic process of a quadratic formula that is contained in an exponent of a CAZAC sequence-defining expression is converted to an arithmetic process of a recursion formula to find the above-described exponent, the above-described exponent that was found is used to generate a CAZAC sequence, and the above-described CAZAC sequence that was generated is taken as the reference signal for transmitting and receiving or as a random access preamble signal.

Abstract: A signal compression method and apparatus for a base transceiver system (BTS) in a wireless communication network provides efficient transfer of compressed signal samples over serial data links in the system. For the uplink, an RF unit of the BTS compresses signal samples resulting from analog to digital conversion of an analog signal received via an antenna. The RF unit transfers the compressed signal samples over the serial data link to the base station processor where they are decompressed prior to the normal signal processing operations. For the downlink, the base station processor compresses signal samples and transfers the compressed signal samples over the serial data link to the RF unit. The RF unit decompresses the compressed samples and converts the decompressed samples to an analog signal for transmission over an antenna. Compression and decompression can be incorporated into operations of conventional base stations and distributed antenna systems.

Abstract: A method for performing coding resource management is provided, where the method is applied to a processing circuit. The method includes: with regard to a specific coding operation, selecting a specific module from a hardware module and a program module; and performing the specific coding operation by utilizing the specific module. In particular, the step of selecting the specific module from the hardware module and the program module further includes: based upon at least one characteristic of the specific coding operation, default settings, and/or user settings, selecting the specific module from the hardware module and the program module. An associated processing circuit is also provided.

Abstract: An exemplary remote controller for a mobile internet device includes a remote control module, a center control module, and a wireless transmitter. The mobile internet device includes a wireless receiver disposed therein. The remote control module generates a control signal. The center control module determines whether the control signal is legal. The transmitter reads out a wireless data from the control signal and transmits to the wireless receiver. A remote control system and method thereof are also provided.

Abstract: An RF communications system including a controlled apparatus configured to receive a RF signal transmitted from a remote control transmitter on a channel that the controlled apparatus can receive, without providing a response signal to the remote control transmitter. The RF transmitting circuit unit of the remote control transmitter transmits RF signals on all of a number of selected transmission channels in a wireless frequency band, while the RF receiving circuit unit of the controlled apparatus stands by to receive an RF signal on a channel of the selected channels that has a relatively low electric field intensity.

Abstract: The present invention relates to touch-screen intuitive based control elements and interfaces and devices using said intuitive based control elements. Control elements provided herein having intuitive shapes and/or positions described above as associated with the man-machine interfaces are provided integral with a display screen or as a module for a touch-screen device.

Abstract: A method for transmitting a data word, according to which a codeword supply (CV) is provided, the number of individual codewords (C1 . . . C31) of the supply corresponding at least to the number of data positions (#1 . . . #31) of the data word (DW), the codewords being formed from a basic codeword (C1) by means of cyclical shifting, and the cross correlation function of each codeword (C2 . . . C31) with the basic codeword (C1) having a distinct extreme value, the position of which is characteristic of the individual codeword (C2). An individual codeword (C1) which is combined with the respective date (0) of the data position (#5) so as to obtain a combined result (VE5) relating to the individual data positions, is assigned to each data position (#1) of the data word (DW). The combined results (VE1 . . .

Abstract: A universal remote control device (100) is provided which is able to operate different electronic devices such as television sets, recorders, set top boxes, and audio systems. The universal remote control device (100) is provided with a database (10) in which control data collected from a plurality of individual physical remote control units (2) is stored in a structured manner. To enable the memory storing the database (10) to be kept small, repetitious and/or redundant control data is omitted. In addition, the database structure uses a hierarchical structure and inheritance. The control data of a physical remote in memory may be stored, therefore, in part in a child physical remote and also in one or more parent or grandparent virtual remotes. Such a structure enables control information which is common to a number of remotes to be stored in just a single occurrence.

Abstract: A controller is configured to determine a word in a set of words corresponding to a received coding value, the set of words including at least one data word, at least one modulator command word and at least one gain command word. When the received coding value corresponds to a data word, the controller causes the data word to be modulated. When the received coding value corresponds to a modulator command word, the controller controls a modulator based on the modulator command word. When the received coding value corresponds to a gain command word, the controller controls a gain based on the gain command word.

Abstract: The present invention relates to intuitive based control elements and interfaces and devices using said intuitive based control elements. In certain embodiments, machine interfaces such as remote control devices for operation of various devices are provided. More specifically, machine interfaces according to embodiments of the invention herein include one or more control elements in the form of shapes and/or positioned indicia to facilitate operation by users. Control elements provided herein having intuitive shapes and/or positions described above as associated with the man-machine interfaces may also be provided integral with various devices. For example, personal electronic devices, personal care devices, personal healthcare devices, communications devices and personal comfort devices may benefit from control elements having intuitive shapes and/or positions associated with the function as described herein.

Abstract: A database of codesets for a remote control device includes codeset information blocks for derivative codesets and codeset information blocks for nonderivative codesets. A codeset information block for a derivative codeset includes: a bit indicating that the block is for a derivative codeset, a plurality of bits each of which corresponds to a respective one of a plurality of fields in a referenced codeset information block, and a pointer that points to the referenced codeset information block. The digital value of a bit determines whether information from the corresponding field in the referenced block will be used as part of the derivative codeset or whether such information is contained in the derivative codeset information block itself. The sizes of the fields in the referenced block are predetermined or are determinable, so a field in the referenced block can be located if its bit is set in the referencing block.

Abstract: A DTV transmitting system includes a pre-processor, a block processor, and a trellis encoder. The pre-processor pre-processes enhanced data by expanding the enhanced data at an expansion rate of 1/H. The block processor includes a first converter, a symbol encoder, a symbol interleaver, and a second converter. The first converter converts the expanded data into symbols. The symbol encoder encodes each valid enhanced data bit in the symbols at an effective coding rate of 1/H. The symbol interleaver interleaves the encoded symbols, and the second converter converts the interleaved symbols into enhanced data bytes. The trellis encoder trellis-encodes the enhanced data outputted from the block processor.

Abstract: A method and apparatus for configuring signal lines with idle codes is disclosed. According to one embodiment, data transmission system (100) may include encoders (112, 114, 116 and 118) that transmit data over signal line lanes (Lane 0 to Lane n). In an idle state, an encoder (112, 114, 116 and 118) may output one of at least two idle codes (IDLE A and IDLE B). One idle code (IDLE A) may indicate a first lane of a group of lanes. Another idle code (IDLE B) may indicate subsequent lanes of a group of lanes.

Abstract: Methods, systems, devices, and memory are disclosed for remote controlling consumer electronics devices. Different orientations of a remote control device are detected. A signal is provided to a processor, and the signal indicates an orientation. The processor changes a mode of operation of the remote control device that corresponds to the orientation such that different orientations of the remote control device control different electronic devices.

Abstract: A RF communication system includes a RF communication module capable of controlling either an IR communication system-controlled device or a controlled device not equipped with a reception circuit for receiving IR signals remotely with RF signals. The RF communication module is equipped with an antenna for receiving RF signals, a RF communication circuit for demodulating the remote control data from the RF signal received by the antenna, a UART interface for outputting bit stream remote data to a device-side microcomputer of the controlled device, and a communication control unit having two types of communication interfaces in a pulse signal interface that outputs a pulse modulated signal, having been pulse modulated with remote control data, to a pulse modulated signal input port of the device-side microcomputer, so that remote control data transmitted by RF signals is output freely, as either bit stream or pulse modulated signals, to a device-side microcomputer of the controlled device.

Abstract: A method and apparatus for ranging finding of signal transmitting devices is provided. The method of signal reception is digitally based only and does not require receivers that are analog measurement devices. Ranging can be achieved using a single pulse emitting device operating in range spaced relation with a minimum of a single signal transmitter and a single digital receiver and processing circuitry. In general a plurality of transmitting pulsed emitters may be ranged and positioned virtually simultaneously in 3-dimensions (XYZ coordinates) using a configuration of a plurality of digital receivers arranged in any fixed 3-dimensional configuration. Applications may involve at least one single transmitter to receiver design to determine range, or at least one transmitted reflecting signal off from an object to determine range.

Abstract: A transmitter circuit, which transmits data by using an impulse, has a variable delay circuit and a logic circuit. The variable delay circuit takes a clock as an input, and delays the clock in accordance with the data. The logic circuit takes the clock and an output of the variable delay circuit as inputs, and outputs an impulse by performing a logic operation between the clock and the output of the variable delay circuit.