50 results about "Transceiver design" patented technology

The present invention provides integrated framing in pluggable optical transceivers to extend the OTN framework into metro, regional, and core applications. Additionally, the present invention provides integrated FEC and optical layer OAM&P features into pluggable optical transceivers. This integration is done with existing pluggable transceivers defined by MSAs such as, but not limited to, XFP, XPAK, XENPAK, X2, XFP-E, and SFP+. Further, the present invention can be extended to new, emerging pluggable transceiver standards and specifications. The integration of framing, FEC, and optical layer OAM&P is done so that the pluggable transceiver preserves the specifications in the MSAs. This allows systems designed for existing pluggable transceivers to realize carrier-grade, robust performance without needed additional equipment such as transponders and without redesigning host equipment such as the line card to support new specifications.

A wireless remote intercom emergency assistance system having a pendent transceiver designed to send signal through a telephone dialing device to a monitoring station for the operator to engage two-way voice communication between pendent transceiver device user and monitoring station, the system comprises:an RF transceiver which transmits a first signal in response to manual action performed on the wireless pendant by the user, the telephone dialing device receives the first transmitted signal and transmits a second coded signal to a monitoring station,the monitoring station computer is disposed to receive the telephone dialing device generated second signal, and transmit's a third signal to the identified telephone dialing device; the identified telephone dialing device receives the third signal and responsively transmits a fourth signal to the remote pendent transceiver device to open two-way voice communication between the pendent transceiver user and the monitoring station personnel for assistance.

The present invention provides integrated framing in pluggable optical transceivers to extend the OTN framework into metro, regional, and core applications. Additionally, the present invention provides integrated FEC and optical layer OAM&P features into pluggable optical transceivers. This integration is done with existing pluggable transceivers defined by MSAs such as, but not limited to, XFP, XPAK, XENPAK, X2, XFP-E, and SFP+. Further, the present invention can be extended to new, emerging pluggable transceiver standards and specifications. The integration of framing, FEC, and optical layer OAM&P is done so that the pluggable transceiver preserves the specifications in the MSAs. This allows systems designed for existing pluggable transceivers to realize carrier-grade, robust performance without needed additional equipment such as transponders and without redesigning host equipment such as the line card to support new specifications.

Offender presence warning system comprises of;a GPS tracking device having a tamper detection strap used for attaching the device to an offender limb, containing a GPS receiver to receive GPS coordination signals from orbiting satellites and a cellular or satellite modem to establish communication with a monitoring station, a processor and an RF transceiver designed to transmit at time interval uniquely coded RF signal. And a victim carry on RF transceiver device which is designed to receive offender tracking device transmitted signals when the offender is located within near proximity of a victim, the victim carry on device processor in response to received RF transmitted signals from offender GPS tracking device, the victim warning device processor generates an audio / visual and or vibrating warning alarm signal(s) to alert the victim the presence of an offender near by, and the victim warning device automatically transmits a uniquely coded RF signal to the offender tracking device, which upon receipt of the signal generates audio and or vibrating alarm signal to warn the offender being to close to the victim and allow offender to move away from the victim, If the offender becomes non responsive to received warning signal(s), at a pre-determine time the offender GPS tracking device transmits a violation signal to a monitoring station containing information to both the offender unit ID, and to the victim unit ID along with GPS location information of offender.

Offender presence warning system comprises;a tracking device securely attached to an offender limb, containing a GPS receiver and a wireless modem an RF transceiver designed to transmit at time interval RF signal. And a victim carry on RF transceiver device which receives offender tracking device transmitted signals when the offender is located within near proximity of a victim. The victim device in response to received RF transmitted signals from the tracking device, generates warning signal(s) to alert the victim the presence of an offender, and automatically transmits a RF signal(s) to the offender tracking device, which upon receipt of the RF signal generates alarm signal to warn the offender being too close to the victim, If the offender becomes non responsive, the offender tracking device transmits a signal to a monitoring station containing information to both the offender, and the victim unit ID along with GPS location information.

A method and apparatus for filtered wireless communications is provided. The method provides a managed wireless zone. A wireless zone communication system is provided having one or more wireless nodes. The wireless node can be a cellular base substation including a power source, a processor having software stored in memory, a transceiver designed to function solely in a filtered zone and to communicate with one or more wireless devices via an antenna transmitter, and a cellular phone number assigned to the cellular base substation. Wireless communication signals to be used within the managed wireless zone are registered. Subscriber are provided with filtering options, such as for example, allowing an identified wireless communication signal to receive in-coming calls within the filtered area, allowing an identified wireless communication signal to receive in-coming calls within the filtered area according to a schedule, forwarding an identified wireless communication signal to a destination number, forwarding an identified wireless communication signal to phone mail, switching an identified wireless communication signal from “ring” to vibrate and notifying an identified wireless communication signal regarding the managed wireless zone. Wireless communication signals are detected and identified within the wireless zone communication system. The identified wireless communication signals are compared with the filtering options.

The invention discloses an energy efficiency maximization-based multi-user information and energy simultaneous transmission transceiver design method. According to the energy efficiency maximization-based multi-user information and energy simultaneous transmission transceiver design method of the invention, the lagrangian relaxation technology is adopted to decompose a complex energy efficiency maximization-based multi-user information and energy simultaneous transmission transceiver design problem into a series of sub problems with closed-form solutions, namely, the design method includes the following steps that: equivalent variation is performed on total power constraints of transmission, and lagrangian multipliers are led into equivalent power constraints, so that a part of a lagrangian function and corresponding dual problems can be obtained; the dichotomy and Dinkelbach method are utilized to solve the dual problems, so that optimal energy efficiency can be obtained; and finally a base station obtains pre-coding vectors corresponding to the maximum efficiency and transmits receiving power splitting factors to a user through a control channel. Based on the above steps, information and energy simultaneous transmission transceiver design can be completed, and energy efficiency maximization can be realized when information and energy simultaneous transmission is realized.

A method and apparatus for transmitting data in a MIMO communication system, the method including encoding at least one data symbol by implementing a first precoding scheme, the first preceding scheme including a precoder derived from a first channel state information (CSI). The method further includes selecting at least one antenna that maximizes the first CSI, the at least one antenna being selected by implementing a first selection scheme, and transmitting the at least one data symbol via the at least one antenna.

Offender presence warning system comprises;a tracking device securely attached to an offender limb, containing a GPS receiver and a wireless modem or an RF transceiver designed to transmit at time interval RF signal. And a victim carry on RF transceiver device which is designed to receive offender tracking device transmitted signals when the offender is located within near proximity of a victim. The victim device in response to received RF transmitted signals from the tracking device, generates warning signal(s) to alert the victim the presence of an offender, and automatically transmits a RF signal(s) to the offender tracking device, which upon receipt of the RF signal generates alarm signal to warn the offender being too close to the victim, If the offender becomes non responsive, the offender tracking device transmits a signal to a monitoring station containing information to both the offender, and the victim unit ID along with GPS location information.

A node for use in a wireless communication network that facilitates alignment of the node with other nodes in the network and a method for aligning the node. The node includes mounting fixtures that enables the mounting of GPS receivers and a tiltmeter to obtain position and bearing information for the node. The node contains alignment features that enable the positioning of an optical transmitter / receiver pair in the node using the data obtained from the GPS receivers and tiltmeter.

The invention discloses a processing method of MIMO-OFDM system downlink information data. The problem that the optimum error rate performance cannot be obtained through a traditional downlink information data processing method is mainly solved. The processing method comprises the steps that (1) sub-carriers are subjected to grouping, and sending and receiving signal vectors corresponding to the groups of sub-carries and channel matrixes are established; (2) modulating signals corresponding to the groups of sub-carries are subjected to normalization and disturbance; (3) the signal vectors after normalization and disturbance are subjected to multithread interference rejection and emitting power control; (4) the receiving signal vectors corresponding to the groups of sub-carriers are subjected to gain compensation and modulus operation; (5) normalization modulating signal estimated values obtained after modulus operation are subjected to inverse normalization; and (6) estimated values of orthogonality amplitude modulating signal vectors after inverse normalization are subjected to demodulation. The method has the advantages of being low in error rate and adjustable in complexity, and the method is used for transceiver designing of an MIMO-OFDM communication system.

A node for use in a wireless communication network that facilitates alignment of the node with other nodes in the network and a method for aligning the node. The node includes mounting fixtures that enables the mounting of GPS receivers and a tiltmeter to obtain position and bearing information for the node. The node contains alignment features that enable the positioning of an optical transmitter / receiver pair in the node using the data obtained from the GPS receivers and tiltmeter.

A system is provided for optimizing throughput in a communication system. During operation, the system receives, at a first antenna, estimated channel state information (CSI) at least one channel between the first antenna and at least one second antenna. The system obtains antenna correlation information associated with the first antenna and the second antenna, respectively. The system further calculates a set of noise terms associated with random noise for the at least one channel, and optimizes a configuration of beamformers for the first antenna and the at least one second antenna that maximizes a throughput of all antennas, in accordance with the estimated CSI, the obtained antenna correlation information, and the noise terms.

Designs and techniques to enhance power-efficiency and incorporate new features in millimeter-wave MIMO transceivers are described. A new mechanism for built-in dual-band, per-element self-interference cancellation (SIC) is introduced to enable multi-antenna frequency-division duplex (FDD) and full-duplex (FD) operation. Additionally, several innovative circuit concepts are introduced, including low-loss wideband antenna interface design, dual-band power combining PA, dual-band RF-SIC design, and bi-directional MIMO signal path design.

The present invention provides a host board system in which transceivers of two sizes (the larger approximately twice the width of the smaller) can be arbitrarily mixed within a given host board design. This is accomplished by specifying an arrangement of electrical connectors, a guide rail design, a set of transceiver features, and a bezel configuration to meet this need as well as the other requirements of optoelectronic transceivers. Typically, two slots and connectors are lined up behind an opening in a bezel that provides transceiver access to two connectors. So that either double-width or single-width transceivers can be used in the same opening, the double-width transceiver is designed to engage with the connectors in the same position as a single-width transceiver. Further, the slots and connectors are spaced evenly so that all of the slots and connectors can accommodate a single-width transceiver and all adjacent slots and connectors can accommodate a double-width transceiver.

A system is provided for optimizing throughput in a communication system. During operation, the system receives, at a first antenna, estimated channel state information (CSI) at least one channel between the first antenna and at least one second antenna. The system obtains antenna correlation information associated with the first antenna and the second antenna, respectively. The system further calculates a set of noise terms associated with random noise for the at least one channel, and optimizes a configuration of beamformers for the first antenna and the at least one second antenna that maximizes a throughput of all antennas, in accordance with the estimated CSI, the obtained antenna correlation information, and the noise terms.

The invention discloses a multi-user transceiver design method in a visible light MIMO system, and belongs to technical field of visible light communication. On the condition that the transmitting light power is limited, the problem that in the multi-user MIMO-VLC system, users intervene mutually exists, joint optimization is conducted on a transmitting precoding matrix and a receiving balancing matrix, and therefore the signal leakage-to-noise ratio of the system can be maximum. Transmitting precoding is conducted on a transmitter to reduce the channel correlation, and then receiving balancing is conducted on a receiver to restore transmitted data. Compared with the prior art, precoding of the transmitter and receiving balancing of the receiver are comprehensively designed, and the maximum signal leakage-to-noise ratio criterion-based transceiver design method for signal transmission on the condition that the light power is limited is proposed.

The invention provides a multi-input multi-output transceiver design method and device, and the method comprises the steps: building a target optimization model based on a safety rate model of a user signal in a signal transmission system; solving the target optimization model, and determining optimization design parameters of the transceiver in the signal transmission system; the optimization design parameters comprise at least one of a downlink precoding vector, a downlink artificial noise vector, uplink sending power and a mode selection vector; the security rate model is determined based on signal security rates of all users associated with the eavesdropping device. According to the multi-input multi-output transceiver design method and device provided by the invention, the target optimization model is constructed and solved, so that the optimization design parameters of the transceiver are obtained, interception of signals by eavesdropping equipment can be effectively prevented, and the communication security of a signal transmission system is ensured.

An apparatus and corresponding method for enabling the use of a plurality of control heads for operating a transceiver designed to operate with a single control head via a data bus. An interface module is connected between the transceiver and the plurality of control heads that periodically generate an interrupt request. The interface module, responsive to the interrupt requests, selectively enables one of the control heads to operate the radio transceiver. The method includes polling communication from the control heads and transceiver for mediating control of the transceiver. In one embodiment, accessibility of the radio system is improved and cost reduced by utilizing the speaker and volume control of each control head, such that an external speaker is not required.

The invention relates to a robust hybrid transceiver design method based on millimeter wave full duplex relay communication, and belongs to the technical field of communication. The method comprises the following steps of: designing an interference elimination matrix at a relay end by utilizing the null space property of a self-interference channel; and then, using the capacity lower bound of a channel as an optimization problem, solving an all-digital precoder by a water injection algorithm, and integrating an interference elimination matrix into an all-digital precoder at the relay end; andfinally, decomposing the all-digital transceiver into a hybrid transceiver by using an iterative decomposition method with a closed-form solution.

The invention provides a block diagonalization assisted robust transceiver design method in a multi-cell MIMO system. The method comprises the following steps: step 1: setting an operation mode of the multi-cell MIMO system; step 2: defining a signal to interference plus noise ratio (SINR) of a single user or receiver, and calculating the signal to interference plus noise ratio of the k user or receiver; step 3: performing block diagonalization precoding by each transmitter according to a local estimation channel; step 4: calculating a lower bound value of the signal to interference plus noise ratio when the channel has a bounded error; step 5: using the lower bound value of the signal to interference plus noise ratio as the signal to interference plus noise ratio of the worst case, importing a slack variable, and transforming to solve a beam forming vector problem of the transmitters or receivers by using a convex optimization method; and step 6: obtaining a robust beam forming vector by using an alternate optimization method. According to the block diagonalization assisted robust transceiver design method provided by the invention, the robustness for the bounded error is relatively high, and each transmitter only uses the local CSI to perform the block diagonalization precoding, thereby reducing the feedback cost and guaranteeing the minimum SINR performance.

The invention belongs to the technical field of information and communication, and relates to an F-OFDM system transceiver design method based on amplitude limiting of compressed sensing. In order tomore effectively reduce PAPR and fully utilize known information to recover a truncated part z so as to more accurately recover a signal, the present invention proposes repeating Clipping_Filling andusing a Turbo-CS algorithm to recover a missing signal in a time domain. On the one hand, through repeated Clipping_Filling, PAPP is reduced. On the other hand, a receiving end uses a Turbo-QSoppy (using the TCP-Composite) algorithm to iteratively detect an interference signal, thereby ensuring reliability of transmission.

A communication control device and a transceiver for a user station of a serial bus system and a method for communicating in a serial bus system. The communication control device includes a communication control module for generating a transmission signal for controlling a communication of the user station with another user station of the bus system, in which bus system at least one first communication phase and one second communication phase being used for exchanging messages between user stations of the bus system, a first terminal for transmitting the transmission signal to a transceiver designed to transmit the transmission signal onto a bus, a second terminal for receiving a digital reception signal from the transceiver, a bidirectional terminal, and an operating mode switching module for switching the transmission direction of the bidirectional terminal as a function of the operating mode of the transceiver in the second communication phase.

According to a first aspect of the present disclosed subject matter, a system for managing inductive charging of at least one device, the system comprising: at least one venue comprising: a plurality of charging spots each of which comprises a dedicated Bluetooth low energy (BLE) transceiver designed to enable communication between charging spots of the plurality of charging spots, wherein at least one charging spot of the plurality of charging spots is capable of being configured as a relay; at least one gateway comprising a BLE transceiver; wherein the gateway is capable of communicating, by its BLE transceiver, with each charging spot either directly or indirectly via the relay; and a cloud computing server configured to provide services to the at least one venue; and wherein the CCS is connected with at least one venue via the Internet.

A communication control device and a transceiver for a user station of a serial bus system. The communication control device includes a communication control module for generating a transmission signal for controlling a communication of the user station with at least one other user station of the bus system, in which bus system a first communication phase and a second communication phase being used for exchanging messages between user stations of the bus system, an STB terminal for transmitting an operating mode signaling signal to a transceiver designed to transmit the transmission signal onto a bus of the bus system, and an operating mode coding block for generating the operating mode signaling signal from a signal that signals to the transceiver that the transceiver is to be switched into the standby operating mode.

This is a test method of anti-electromagnetism interfere capability of CAN bus. The CAN bus interface of the CAN bus electron controlling equipment connects with CAN bus interface of CAN bus terminal by metal line to exchange the communication between the CAN electron controlling equipment and CAN bus terminal through CAN bus. The electromagnetism disturb signal is added to the metal line of CAN bus by electromagnetism disturb coupling equipment. Estimate whether communicate trouble has come into being in the prescriptive time by the communicate trouble inspect function of the CAN bus, and estimate the anti-electromagnetism interfere capability of the CAN bus electron controlling equipment. The equipment has the CAN bus terminal with the communicate trouble inspect function. CAN bus terminal has the same CAN bus physics layer same as the one of the CAN bus electron controlling equipment which is the same type of CAN bus transceiver designed according to the same CAN bus transceiver circuit principle and same printing circuit plant designing rule.

Techniques are provided for full-duplex mobile wireless transceiver design without using duplexers. In an embodiment, separate antennas are provided for the TX and RX signal paths in the transceiver. In an embodiment, the antennas may be implemented as surface mountable ceramic antennas. In an embodiment, the antennas may incorporate integrated band-pass filtering. Further techniques for designing the antennas to have different relative physical characteristics, including antenna orientation, are disclosed.

A node device for a bus system, including a transceiver for connecting to a bus of the bus system; a controller connected to the transceiver via a transmit line and via a receive line, the controller and the transceiver designed to transfer data from the controller to the transceiver via the transmit line and transferring data from the transceiver to the controller via the receive line; a processor; and an intrusion detection system; the processor being connected to the transceiver via a controller bypass line and being designed to, via the controller bypass line, intercept an intrusion into the bus system identified by the intrusion detection system, the intrusion detection system being designed to detect an intrusion into the bus system in which a further node of the bus system sends a frame including an identifier assigned to a third node of the bus system to the bus.