126 results about "XFP transceiver" patented technology

Methods and apparatus provide a transceiver, such as a serializer / deserializer device (SerDes), with enhanced built-in self test (BIST). A built-in self test circuit is provided that decouples a clock signal used for receiving data from a clock signal used in transmitting data. This permits data tracking circuitry of a receiver to be efficiently tested with a relatively simple loop back test.

An electrical connector system has two connectors, one of which is included in a module mateable with the other connector in a pluggable manner. The other connector includes an elongated guide rail and a connector block in which are retained two or more electrical contacts. The guide rail by use of snap projections and recesses (11) may extend through an opening in a computer enclosure. A latch member is attached to the end of the guide rail in a manner that releases the latch member from the guide rail if the latch member is bumped or jarred to minimize the likelihood of damaging it. A grounding strip embedded in the guide rail makes electrical contact with the bezel through which it extends to protect against EMI. The ground strip includes raised contact portions (41) that engage a conductive bottom cover (39) of the module (72) and lower contact portions (53) for surface mount to a system circuit board (26).

A wireless device having a central control entity that coordinates multiple radio transceivers co-located within the same device platform to mitigate coexistence interference. The wireless device comprises an LTE transceiver, a WiFi transceiver, a BT transceiver, or a GNSS receiver. In one embodiment, the central control entity receives radio signal information from the transceivers and determines control information. The control information is used to trigger FDM solution such that the transceivers operate in designated frequency channels to mitigate co-existence interference. In another embodiment, the central control entity receives traffic and scheduling information from the transceivers and determines control information. The control information is used to trigger TDM solution such that the transceivers are scheduled for transmitting or receiving radio signals over specific time duration to mitigate co not existence interference. In yet another embodiment, power control solution is used to mitigate coexistence interference.

An RF front-end architecture is operated in either a transmitting or a receiving mode. The RF front-end architecture comprises an antenna, an impedance match network, a balun and a transceiver chip. The transceiver chip comprises first and second transmit / receive (TR) switches, a transmitter, and a receiver. Because two TR switches are integrated into the chip, the printed circuit board area, BOM cost and pin count of the transceiver chip can be greatly reduced.

A system for testing transceiver modules associated to different multi-source agreement standards, comprising a transceiver testing device and an interface connection unit. The transceiver testing device comprises a processor for performing at least one testing operation on an MSA transceiver module associated to a certain multi-source agreement standard. The interface connection unit is suitable for connecting the MSA transceiver module to the transceiver testing device. The transceiver module includes a certain type of electrical connector element. The interface connection unit comprises a first connector component and a second connector component. The first connector component is adapted for being removably connecting the interface connection unit to the transceiver testing device. The first connector component is different from the certain type of connector element of the MSA transceiver module. The second connector component is suitable for connecting the interface connection unit to the certain connector element of the MSA transceiver module.

Systems and methods for direct cooling of transceivers, including transceivers used in electrical and optical communications systems. An electrical system includes a transceiver module with a housing that contains a plurality of apertures to allow air flow into and out of the transceiver module. The transceiver includes an internal heat sink located within the housing of the transceiver module, where the internal heat sink is thermally coupled to at least one internal component of the transceiver module. The electrical system also includes a cage for receiving and electrically connecting to the transceiver module. The cage contains a second set of apertures such that when the transceiver module is inserted into the cage, air may flow into the cage through the second set of apertures, then flow into the transceiver module through one of the plurality of apertures in the transceiver module housing such that the air dissipates heat from the at least one internal component thermally coupled to the internal heat sink. The air may then flow out of the transceiver module through another of the plurality of apertures in the housing.

Systems and methods for direct cooling of transceivers, including transceivers used in electrical and optical communications systems. An electrical system includes a transceiver module with a housing that contains a plurality of apertures to allow air flow into and out of the transceiver module. The transceiver includes an internal heat sink located within the housing of the transceiver module, where the internal heat sink is thermally coupled to at least one internal component of the transceiver module. The electrical system also includes a cage for receiving and electrically connecting to the transceiver module. The cage contains a second set of apertures such that when the transceiver module is inserted into the cage, air may flow into the cage through the second set of apertures, then flow into the transceiver module through one of the plurality of apertures in the transceiver module housing such that the air dissipates heat from the at least one internal component thermally coupled to the internal heat sink. The air may then flow out of the transceiver module through another of the plurality of apertures in the housing.

A roadway fixture system includes a lighting fixture having an outer housing that holds one or more light devices. The outer housing includes an access door through which an interior of the lighting fixture is accessible. The system also includes a radio frequency (RF) transceiver configured to send and receive cellular communications. The RF transceiver includes a mounting plate that is sized and shaped to fit into a space occupied by the access door of the outer housing of the lighting fixture so that the RF transceiver is mounted to the lighting fixture.

A universal programming device for individualized patient medical devices such as implants has an RF transceiver (transmitter / receiver), a control unit, and a man-machine interface (or a connection for a man-machine interface). The RF transceiver is configured to receive and transmit data in the MICS frequency band. The control unit is connected to the transceiver and has preconfigured software interfaces, such that the programming device can be expanded by addition of control software modules. The preconfigured software interfaces define a uniform interface for triggering the transceiver, which the control software modules can access. The man-machine interface, e.g., a keyboard and / or a display (and / or the connection for such a man-machine interface) is connected to the control unit.

A Wireless Clamp-on Current Probe and an embedded system which includes a digital RF transceiver allows for remote test and measurement equipment to receive data from a current probe without regard to cabling issues such as size, physical wear, weight, cost, electrical noise, losses and more. Such a current probe may be used in environments and situations not previously explored. The probe may be controlled and queried by wired serial communication means or by means of an integrated radio frequency (RF) transceiver. The RF transceiver may utilize a proprietary communication protocol or a standard wireless communication protocol such as ZigBee, Bluetooth or any of the IEEE communication standards.

A tunable PLC optical filter having sequentially connected thermally tunable Mach-Zehnder (MZ) interferometers is described. The MZ interferometers, having free spectral ranges matching ITU frequency grid spacing, are tuned so as to have a common passband centered on the frequency of the signal being selected, while having at least one of the stopbands centered on any other ITU frequency. Any other optical channel that may be present at any other ITU frequency is suppressed as a result. The PLC chip, including a zero-dispersion lattice-filter interleaver stage, a switchable fine-resolution stage and, or a retroreflector for double passing the filter, is packaged into a hot-pluggable XFP transceiver package. A compensation heater is used to keep constant the amount of heat applied to the PLC chip inside the XFP package, so as to lessen temperature variations upon tuning of the PLC optical filter.

An apparatus for controlling safety and preventing accidents at the workplace comprising: a plurality of RF transceivers (11), each associated with either a garment or an accessory or an instrument to be used by an operator when engaged in an area of concern, a plurality of illuminating actuators (12, 14, 16) and receivers (13, 15, 17), each of which associated with either the apparatuses or the structures or parts thereof arranged in said area of concern, said RF transceivers (11) being configured to form a network of PAN or BAN type, and comprising at least one RF transceiver (10) configured as a MASTER of said PAN or BAN network, characterized in that at least one of said RF transceivers comprises a dual-frequency controlled RFID transmitter device (10).

A local communications apparatus is aligned with a remote apparatus, each apparatus comprising radio frequency (RF) and free space optical (FSO) transceivers with substantially parallel boresight. Coarse alignment is performed using the RF transceiver and fine alignment is performed using the FSO transceiver. A patterned search is performed to locate the RF signal from the remote apparatus and known features of the intensity profile are utilized to locate the global maximum, thus coarsely aligning the pair of apparatuses. A second patterned search is performed to locate the FSO signal from the remote apparatus and an iterative step-search is used to align the FSO signal centroid with the FSO transceiver, thus finely aligning the pair of apparatuses.

In order to reduce the weight, cost and complexity of an active antenna array, designed for use with a plurality of different mobile telecommunications systems (multi-band system), the array comprises a plurality of antenna elements, which are divided into a plurality of antenna groups; a plurality of RF transceivers, which are divided into transceiver sets, wherein each transceiver of a set is arranged to operate on a different mobile telecommunications system, and including respective phase shifting and feeding networks coupled between each transceiver set and a respective antenna group, so that each transceiver of a set is coupled to each antenna element of the respective antenna group.

A client station that communicates with an access point (AP) in a wireless local area network (LAN) includes a media access control (MAC) device that controls transitions between an active mode and a low power mode. A radio frequency (RF) transceiver communicates with the MAC device. After the MAC device transitions the client station to the active mode, the RF transceiver transmits data to the AP when at least one of the AP finishes transmitting directed data to the RF transceiver and the AP transmits a null data frame to the RF transceiver. The MAC device transitions the client station to the low power mode when the RF transceiver finishes transmitting data to the AP. The AP uses at least one of a random order and a rotating order to access the client station. The client station and the AP are implemented in a console gaming system.

In one embodiment, the living room computer includes a housing, the housing including a small form-factor pluggable (SFP) port, a SFP cage coupled to the SFP port, the SFP cage configured to receive a SFP transceiver, a flat-panel display screen coupled to the housing, and a main board coupled to the flat-panel display screen. The SFP cage is configured to communicate with both optical fiber and copper wire networks. The main board includes a processor, a memory, and an SFP interface coupled to the SFP cage and to the processor. The processor is configured to receive data from the SFP interface and process the data for display on the flat-panel display screen. In one embodiment, the main board includes a wireless module and the processor is configured to process data received from the SFP interface for transmission by the wireless module, and the memory includes software executable by the processor such that the living room computer operates as an IEEE 802.11 access point.

An RF front-end architecture is operated in either a transmitting or a receiving mode. The RF front-end architecture comprises an antenna, an impedance match network, a balun and a transceiver chip. The transceiver chip comprises first and second transmit / receive (TR) switches, a transmitter, and a receiver. Because two TR switches are integrated into the chip, the printed circuit board area, BOM cost and pin count of the transceiver chip can be greatly reduced.

A small form factor pluggable device (SFP) or other compact transceiver device is provided at a subscriber's site and is configured to perform Layer 3 testing (e.g., ICMP echo request and response operations) for testing connectivity across networks. A universal interface coupling a conventional transceiver to host equipment is also disclosed which has components that can provide additional functionality to the transceiver while maintaining compatibility between the transceiver and the host equipment.

Integrated performance monitoring (PM); optical layer operations, administration, maintenance, and provisioning (OAM&P); alarming; amplification, or the like is described in optical transceivers, such as multi-source agreement (MSA)-defined modules. An optical transceiver defined by an MSA agreement can include advanced integrated functions for carrier-grade operation which preserves the existing MSA specifications allowing the optical transceiver to operate with any compliant MSA host device with advanced features and functionality. An XFP module can include integrated circuitry configured to provide forward error correction encoding and decoding; a transmitter communicatively coupled to the integrated circuit; a receiver communicatively coupled to the integrated circuit; and a module housing in which the integrated circuitry, the transmitter, and the receiver are disposed, wherein the module housing is pluggable in a host device configured to operate the pluggable optical transceiver, and wherein the forward error correction encoding and decoding is performed transparently to the host device.

High-speed serial interface or transceiver circuitry on a programmable logic device integrated circuit (“PLD”) includes features that permit the PLD to satisfy a wide range of possible user needs or applications. This range includes both high-performance applications and applications in which reduced power consumption by the PLD is important. In the latter case, any one or more of various features can be used to help reduce power consumption.

A modular shelf for an integrated display structure that addresses the mutually important, yet unrelated issues of inventory control, shelf labeling and point of purchase advertising. The modular shelf has a non-metallic low density core, a molded frame secured along the outer perimeter of the core, a thermoplastic or resinous sheet secured to each of the top face and the bottom face of the core, and a plurality of antennae embedded within at least one of the top sheet and the bottom sheet. An RF or other electronic transceiver is electrically connected to the antennae secured within a cavity of the rear molded member, and a power and communications connects the RF transceiver with a front video display panel and with power and communications components in a support base of a shelf gondola.

In a wireless network, a method for operating a wireless device including at least a wireless local area network (WLAN) transceiver and a Bluetooth (BT) transceiver, the method comprising facilitating a voice-over-IP (VoIP) call with another device using the WLAN transceiver and the BT transceiver; initiating a WLAN scanning operation by transmitting a probe request, over a wireless channel, to one or more access points (APs); instructing the one or more APs to delay sending a probe response for a delay period; and selectively terminating the WLAN scanning operation based at least in part on a determination that the wireless channel has been idle for more than a wait period after expiration of the delay period.

A tunable PLC optical filter having sequentially connected thermally tunable Mach-Zehnder (MZ) interferometers is described. The MZ interferometers, having free spectral ranges matching ITU frequency grid spacing, are tuned so as to have a common passband centered on the frequency of the signal being selected, while having at least one of the stopbands centered on any other ITU frequency. Any other optical channel that may be present at any other ITU frequency is suppressed as a result. The PLC chip, including a zero-dispersion lattice-filter interleaver stage, a switchable fine-resolution stage and, or a retroreflector for double passing the filter, is packaged into a hot-pluggable XFP transceiver package. A compensation heater is used to keep constant the amount of heat applied to the PLC chip inside the XFP package, so as to lessen temperature variations upon tuning of the PLC optical filter.

The invention provides a radio frequency front end circuit and mobile terminal equipment. The radio frequency front end circuit comprises a WCN antenna, a diversity reception antenna, a GPS radio frequency path, a WCN transceiver and a selector switch, wherein the WCN antenna is connected with the first end of the selector switch, the diversity reception antenna is connected with the second end ofthe selector switch, and the WCN transceiver is connected with the third end of the selector switch via the GPS radio frequency path; and when a GPS positioning function of the mobile terminal equipment is opened, the WCN antenna is used for receiving GPS signal when the selector switch is changed to be connected with the WCN antenna, and the diversity reception antenna is used for receiving theGPS signals when the selector switch is changed to be connected with the diversity reception antenna, the received GPS signals are transmitted to the WCN transceiver via the GPS radio frequency path.According to the technical scheme, the diversity reception antenna of the mobile terminal equipment is reused for receiving the GPS signals, so that the directionality of the GPS signals is effectively improved, and thus the reception quality of the GPS signals is improved.

A method comprising transmitting a delay value to each of a plurality of digital subscriber line (DSL) transceivers, by a distribution point unit (DPU), and receiving a plurality of signals at substantially the same time, wherein each of the plurality of signals is from a different DSL transceiver in the plurality of DSL transceivers and transmitted at different times based on the delay value and a corresponding propagation delay.

A method and system for a programmable input / output transceiver is disclosed. A circuit in accordance with the invention includes a programmable transceiver. The programmable transceiver is configured and / or controlled to support an interface standard. A system according to the present invention includes a programmable transceiver and a field-programmable gate array (FPGA) core coupled to program the programmable transceiver.

This disclosure concerns transceivers that include CDR bypass functionality. In one example, a 10 G XFP transceiver module includes integrated CDR functionality for reducing jitter. The 10 G XFP transceiver module also implements CDR bypass functionality so that the CDR can be bypassed at rate less than about 10 Gb / s, such as the Fibre Channel 8.5 Gb / s rate for example.

Methods to load control programs into an optical transceiver whose specifications follow the standards are disclosed. The standard transceiver, such as SFP transceiver and / or XFP transceiver, provides control terminals in addition to the serial interface to communicate with the host device. The control terminals are inactive when the transceiver is output of the host device. The loader to load the program utilizes those control terminals and the optical transceiver of the invention provides mechanisms to use those control terminals for downloading the program.

The invention discloses a bridge health monitoring system based on an acoustic emission technology. The bridge health monitoring system comprises a plurality of acoustic emission data acquirers, an acoustic emission signal processor, a monitoring platform system, a CAN bus and the internet, wherein the acoustic emission data acquirers are connected to one end of the CAN bus in series; the other end of the CAN bus is connected with the acoustic emission signal processor; the acoustic emission signal processor is connected with the monitoring platform system through the internet; each acoustic emission data acquirer consists of an acoustic emission sensor, a signal acquirer and a CAN bus transceiver, the output end of the acoustic emission sensor is connected with the input end of the signal acquirer, the output end of the signal acquirer is connected with the input end of the CAN bus transceiver, and the output end of the CAN bus transceiver is connected with the CAN bus. The bridge health monitoring system has the advantages that with adoption of the acoustic emission sensors, the safety health condition of each main part of a bridge can be monitored in real time, any potential safety hazards about the fatigue of the bridge is early warned, the bridge can be timely maintained, and the problem about health monitoring of the bridge is relatively well solved.