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302 results about "Daisy chain" patented technology

In electrical and electronic engineering a daisy chain is a wiring scheme in which multiple devices are wired together in sequence or in a ring, similar to a garland of daisy flowers. Other than a full, single loop, systems which contain internal loops cannot be called daisy chains.

Heater control system with combination modular and daisy chained connectivity and optimum allocation of functions between base unit and local controller modules

A heater control system that utilizes electronic temperature control at each of a number of interconnected heaters is provided for monitoring and operating heaters within a narrow temperature range. In one embodiment, a heater control system is provided that is adapted for controlling a number of heaters positioned on pipe and components of a piping system from a remote location. The heater control system includes satellite controllers mounted on each heater connected daisy chain fashion and includes a monitoring station with a user interface for allowing a user to monitor and to remotely control the operating status or temperature of each heater in the heater control system. To satisfy the user's space requirements, the size of each controller is maintained at a small form factor and a single cord is used to provide power and communications lines to and between the controllers. Each controller integrates power supply and control with electronic temperature control to minimize the use of mechanical switching and to increase the accuracy of temperature control. The temperature set point is adjustable at each controller and, in one embodiment, the temperature set point is remotely adjustable from a remote monitoring station. The operating status of each controller is displayed on the exterior of the controller's housing and in one embodiment, the operating status, such as temperature, is displayed at a base station for each line of controllers and heaters and on a user interface monitor at a monitoring station.
Owner:MKS INSTR INC

Apparatus and system for automated pipeline testing

A cathodic protection system comprising remote test units for measuring various voltages and currents at remote locations on a cathodically-protected pipeline. The remote test units may comprise a processor configured to store measurements taken with the voltmeter and a wireless transceiver for communicating with other test units and / or a Web server or host computer in a daisy-chain or mesh radio configuration. The remote test units may comprise an instant-off switch which electrically connects the pipeline with a buried protected coupon of the same material as the pipeline, and a voltmeter configured to measure the instant-off potential of the protected coupon when the switch is opened. The test units may also comprise a millivoltmeter configured to measure a voltage across a critical bond current shunt resistor and an ammeter configured to measure AC and DC current flowing between the pipeline and the protected coupon with the instant-off switch is closed.
Owner:ELECSYS CORP

Method and apparatus for the continuous performance monitoring of a lead acid battery system

The present invention concerns a battery monitoring system for monitoring a plurality of batteries serially connected to form a string. The battery monitoring system includes a number of probes connected to at least a portion of the string, a daisy chain bus having a select channel for serially interconnecting the probes, the bus having other, parallel channels for data communication and power, and a system server. The probes each have a sensing module and a communication module. The sensing module senses characteristics of at least a portion of the string, such as voltage or current. The communication module receives the sensed characteristics and converts them into digital form for broadcast to the system server over the bus. The communication module of the probes have a memory for storing an address assigned to the corresponding probe upon reception of an initialization signal sent by the system server via the bus. In order to readdress all of the probes, a reset signal is transmitted to all of the probes. The probes clear the present address, and wait until they are selected through the select channel. Once the probe has been selected, it receives an address from the system server, stores the address in its memory, acknowledges this to the system controller, and sends a signal on the select channel to the next probe. Accordingly, initialization of a battery monitoring system is easily performed. The invention also lies in an interface device for use with a battery monitoring system.
Owner:ZACCARIA ROBERT

Digital all-optical distributed system allowing multiple-service access

InactiveCN103391485AOvercome the disadvantage of transmission distance of only 100mMeet the requirements of co-construction and sharingMultiplex system selection arrangementsSubscriber stations connection selecting arrangementsDaisy chainFeeder line
A digital all-optical distributed system allowing multiple-service access is characterized by comprising an access unit, an expansion unit and a remote unit, wherein the access unit and the expansion unit are connected through optical fiber, and the expansion unit and the remote unit are connected through optical fiber; the access unit or the expansion unit is connected with the network, and the remote unit is connected with the network; and a switching unit can be further arranged and is connected with the access unit which is used for 1+1 backup through a feeder line cable and optical fiber. The access unit in the system couples multiple service radio-frequency signals from a signal source, converts the signals into digital baseband signals and transmits the digital baseband signals to the expansion unit, the expansion unit realizes shunting of digital baseband downlink signals and combining of digital baseband uplink signals and transmits the digital baseband signals to the remote unit through optical fiber. The system can provide services such as wireless access, fixed network broadband, WLAN (wireless local area network) signal transmission and the like, can develop multiple functions on the basis of digital intermediate frequency and can support star, daisy chain and mixed networking.
Owner:WUHAN HONGXIN TELECOMM TECH CO LTD

Peer to peer power management

A system and methods for delivering power to a multitude of portable electronic devices is provided. More specifically, the system and methods provide for powering different portable electronic devices through a central charging device. The method of delivering a power supply to a plurality of portable electronic devices includes determining a power requirement for each of the portable computing devices and supplying the power requirement to each of the portable computing devices in a daisy chain configuration using a central power device.
Owner:KYNDRYL INC

Master-slave communication distribution address method for daisy-chain connection, system, slave computers and host computer

The invention relates to a master-slave communication distribution address method for daisy-chain connection, a system, slave computers and a host computer. The method comprises the following steps: to obtain a first communication address sent through a first address line by a first-level slave computer, and performing the data communication with the host computer by the first communication address; while a second-level slave computer is detected to be in place through a second in-place line by the first-level slave computer, sending in-place information of the second-level slave computer to the host computer in the manner of data communication; and receiving a second communication address of the second-level slave computer returned by the host computer in the manner of the data communication by the first-level slave computer, and sending the second communication address to the second-level slave computer through a second address line, and enabling the second-level slave computer to perform the data communication with the host computer by the second communication address. The method is capable of automatically distributing the communication address to each slave computer by the host computer without the manual setting, improving the accuracy of the engineering installation, and avoiding the artificial operation error.
Owner:COMBA TELECOM SYST CHINA LTD

Memory Controller For Daisy Chained Memory Chips

A memory controller configured to control a daisy chain of memory chips. The memory controller receives read and write requests from a processor, determines a daisy chain of memory chips that the request is directed to, determines which memory chip in the chain of memory chips the request is directed to, and transmits an address / command word recognizable by the correct memory chip. The memory controller sends write data words to the daisy chain of memory chips that can be associated by the correct memory chip for writing into the correct memory chip. The memory controller receives read data words from the daisy chain of memory chips and returns the read data to the processor. The memory controller transmits a bus clock to the daisy chain of memory chips for controlling transmission of address / command words and data words.
Owner:IBM CORP

Daisy-Chain Pet Leash

A multiple-handle pet leash for pet control and of a non-retractable, flat-material type. The body of the leash consists of a single length of strap material, which is folded over at the middle to capture a spring-clip device. The body of the leash is joined together at increments along the length of the strap material to form a series of apertures or loops. In addition, the handle of the leash shall be of a design which can be unfastened at one end, rendering a single open strap, and refastened using hook-and-loop material to reform the leash handle or to form a larger tie-out loop when fastened through one of the leash body apertures.
Owner:HOLLENBECK PATRICK JASON +1

Method and structure for thermoelectric unicouple assembly

Method for assembling thermoelectric unicouples is provided and applied with silicon-based nanostructure thermoelectric legs. The method includes preparing and disposing both n-type and p-type thermoelectric material blocks in alternative columns on a first shunt material. The method includes a sequence of cutting processes to resize the thermoelectric material blocks to form multiple cingulated unicouples each having an n-type thermoelectric leg and a p-type thermoelectric leg bonded to a section of the first shunt material. Additionally, the method includes re-disposing these cingulated unicouples in a serial daisy chain configuration with a predetermined pitch distance and bonding a second shunt material on top. The method further includes performing additional cutting processes to form one or more parallel series of thermoelectric unicouples in daisy chain configuration. The first shunt material is coupled to a cold-side heat sink and the second shunt material is coupled to a hot-side heat sink.
Owner:SYNERGY THERMOGEN INC +1

Coverage reinforcing system based on radio remote unit and method thereof

The invention provides a coverage enhancement system based on a remote radio unit. The system consists of a BBU and a plurality of RRU, wherein the plurality of RRU of the coverage enhancement system based on the remote radio unit covers the same cell. The coverage enhancement system based on the remote radio unit is a star network system or a daisy chain network system, an air interface of each level RRU transmits the same I / Q data, and compensates time delay of each level RRU at the same time, ensuring the time delays from baseband data of the BBU to an antenna port of each level RRU are approximately same, avoiding time delay dispersion influence of an overlapping area of each level RRU caused by different time delays, improving the cell coverage, and reducing baseband treatment cost of the BBU, thereby coverage demands of a mobile communication network can be better satisfied.
Owner:COMBA TELECOM SYST CHINA LTD

At-speed test access port operations

This disclosure describes different ways to improve the operation of a device's 1149.1 TAP to where the TAP can perform at-speed Update & Capture, Shift & Capture and Back to Back Capture & Shift operations. In a first embodiment of the disclosure the at-speed operations are achieved by time division multiplexing CMD signals onto the TMS input to the TAP. The CMD signals are input to a CMD circuit that operates in conjunction with a Dual Port Router to execute the at-speed operations of a circuit. In a second embodiment of the disclosure the at-speed operations are achieved by detecting the TAP's Exit1DR state as a CMD signal that is input to the CMD circuit that operates in conjunction with a Dual Port Router to execute the at-speed operations of a circuit. In a third embodiment of the disclosure the at-speed operations are achieved by detecting the TAP's Exit1DR and PauseDR states and in response producing Capture and Update signals that are input to a Programmable Switch that operates in conjunction with a Dual Port Router to execute the at-speed operations of a circuit. In a fourth embodiment of the disclosure the at-speed operations are achieved by detecting the TAP's Exit1DR and PauseDR states and inputting these states to a Dual Port Router to control the at-speed operations of a circuit. Each of the embodiments may be augmented to include externally accessible Update and Capture input signals that can be selected to allow a tester to directly control the at-speed operations of a circuit. The improvements of the disclosure are achieved without requiring any additional IC pins beyond the 4 required TAP pins, except for examples showing use of additional data input pins (TDI or WPI signals), additional data output pins (TDO or WPO signals) or examples showing use of additional control input pins (Capture and Update signals). Devices including the TAP improvements can be operated compliantly in a daisy-chain arrangement with devices that don't include the TAP improvements.
Owner:TEXAS INSTR INC

Satellite channel high dynamic time delay Doppler simulation system

ActiveCN111064503AWide range delayPrecise Delay ControlTransmission monitoringRadio transmissionDaisy chainControl cell
The invention discloses a satellite channel high-dynamic time delay Doppler simulation system, relates to the technical field of satellite communication, and solves the problems of small simulation time delay and Doppler range and low change speed of an existing channel simulator. The system comprises an input unit, an FPGA control unit, an upper computer parameter control unit and an output unit.The FPGA control unit comprises a static time delay control unit, a dynamic time delay control unit and a Doppler frequency shift simulation unit; the FIFO function realized on the basis of the external DRAM memory structure can be subjected to large-range time delay; hardware adopts a PXI architecture, multi-channel expansion is realized, and a plurality of board cards are triggered in a daisy chain form. The fractional delay filter based on the least square method ensures accurate delay control in a large bandwidth range; Doppler and time delay continuous changes are supported; Doppler andtime delay joint synchronous control; a speed-adjustable control mode is updated based on the digital NCO parameters; and the satellite channel high-dynamic time delay Doppler simulation system can beexpanded into a multi-channel structure, and multiple channels can be accurately synchronized.
Owner:CHANGGUANG SATELLITE TECH CO LTD

Daisy chain communication simulation test system

The invention discloses a daisy chain communication simulation test system. The system comprises a monitoring upper computer interface, a target chip simulation model, an operation real-time system, adaisy chain physical layer conversion circuit and a hardware fault injection module. The monitoring upper computer interface is used for configuring test parameters, setting fault injection and monitoring the running state of the whole test system; the simulation model includes an internal state machine, communication logic, register configuration and a fault exception handling mechanism of a simulation chip. The compiled simulation model runs in a real-time system; and signal output of the physical layer is controlled according to a model output result. The daisy chain communication system testing system can efficiently and rapidly achieve testing and diagnosis of a daisy chain communication system, can be linked with an existing HIL rack to achieve closed-loop operation of the whole testing system, improves the testing efficiency and reduces the cost at the same time.
Owner:上海同湛新能源科技有限公司
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