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 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 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.

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.

MicroLEDs may be used for short-range optical communications. Signal equalization may be used to decrease distortion in transmitted and / or received information, including with the use of multi-level modulation formats.

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.

The invention discloses a visible light MIMO system transceiver design method and belongs to the technical field of visible light communication. According to the method, under the condition that transmitting optical power is limited, for signal transmission features of a visible light MIMO system, amplitude constraint and mean constraint conditions of signals are provided, and on the basis, jointoptimization is carried out on a transmitting precoding matrix and a receiving balancing matrix, so a signal to noise ratio of the system is maximized. Transmitting precoding is carried out at a transmitting end, so channel correlation is reduced; and receiving balancing is carried out at a receiving end, so transmitted data is recovered. Compared with the prior art, the method has the advantagesthat through comprehensive consideration of the transmitting precoding of the transmitting end and the receiving balancing of the receiving end, the transceiver design method based on a maximum signalto noise ratio criterion is provided, under the condition that the optical power of transmitting signals is limited.

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.