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181 results about "Changed status" patented technology

Urban rail train regenerative brake energy absorbing and using system and method

The invention provides an urban rail train regenerative brake energy absorbing and using system. The system comprises an energy feedback inverter, an energy-storing unit, a DC/DC (direct-current/direct-current) bidirectional converter and a direct-current flat-wave capacitor, wherein the direct-current side of the energy feedback inverter and the high-voltage side of the DC/DC bidirectional converter are connected in parallel with the direct-current flat-wave capacitor and are simultaneously connected in parallel with the anode and the cathode of a direct-current bus; the low-voltage side of the DC/DC bidirectional converter is connected with the energy-storing unit; and the alternating-current side of the energy feedback inverter is connected with the low-voltage side of a distribution transformer in a traction substation, and the energy feedback inverter is used for inverting regenerative brake energy on the direct-current bus to be used by electric equipment in the traction substation. The invention also provides a regenerative brake energy absorbing and using method based on the system. The energy feedback inverter and the DC/DC bidirectional converter are coordinated and controlled on the basis of the change status of the voltage of the direct-current bus, the train regenerative brake energy is quickly and fully absorbed, the voltage of the direct-current bus is kept stable, and the utilization rate of the train regenerative brake energy is improved.
Owner:HUAZHONG UNIV OF SCI & TECH

Method and structure for efficiently retrieving status for SCSI accessed fault-tolerant enclosure (SAF-TE) systems

InactiveUS7013336B1Hardware monitoringMultiple digital computer combinationsSCSITagged Command Queuing
A method for determining a change in the SAF-TE enclosure status and a change in the SAF-TE device slot status, each with a single issuance of one new command, replacing countless re-issuance of similar commands. Use is made of a common disconnection / reconnection capability as well as a tagged command queuing technique, such that multiple types of status changes in a SAF-TE enclosure are concurrently determined. Since each of the new commands described here is initiated by the host adapter, the host adapter is prepared for receiving asynchronously a changed status from the reconnecting target device such as a SEP whenever it becomes available, without resorting to use of a complex SCSI protocol known as “asynchronous event notification.” Status fields in the data packets transferred by the commands introduced in this invention may be the same as those in conventional systems, and so the inventive commands are a natural extension to conventional systems and may be adapted while maintaining compatibility with existing hardware and protocols. Removes stringent SEP response time requirements and causes negligible host system performance impact independent of how many SAF-TE enclosures are attached to the host adapter. Provides for use of an optional convenience timer for the SAF-TE Processor (SEP) device to check in with its current status before a status change occurs. Maintains backward compatibility by detection of an absence of the “tagged command queuing” indicator in inquiry data from the SEP device with implementations that do not support the inventive commands. Computer software and firmware implementations are provided.
Owner:TWITTER INC

Static analysis based source code multi-versionfunction call relation difference identification method

The invention relates to a static analysis based source code multi-versionfunction call relation difference identification method. Firstly, information defined in a source code, like a function list and a static call relation between functions, is acquired through a source code static analysis technique; then source codes of two versions are chosen to carry out Diff, then the function definition list and the call relation that are acquired through static analysis are combined to identify the changed difference part, the state of the changed part is carefully analyzed, the change status, the new addition status and the deletion status defined and called by a function are respectively identified and put in storage, and finally, the call relation betweena single version and the call relation difference view of more versions are displayed in combination with the user need and the status data stored in a database. The internal call relation of single version is analyzed and displayed, and the call relation difference of more versions is also analyzed and displayed, so that an efficient auxiliary method is provided for the analysis, development, uploading and maintenance of open source software.
Owner:INST OF SOFTWARE - CHINESE ACAD OF SCI

Rotational information display device capable of connecting to personal computer

InactiveUS20050052404A1Providing safetyStatic indicating devicesComputer hardwareGraphics
A rotational information display device capable of connecting a personal computer outputs a connection status of a messenger, the connection with a friend set by the user, a messenger change status of the mail receiver or the content of a personal alarm set or the like as a three dimensional image, a graphic image, a character, an audio signal or the like through the rotational information display device. Therefore, the rotational information display device increases the utilization therefore since a connection status, the connection with a friend set by the user, a messenger change status of the mail receiver or the content of a personal alarm set is identified by using a three dimensional image, a graphic image, a character, an audio signal or the like although the users of the personal computers do not use their computers. Also, by transmitting a messenger change status of a personal alarm setting content inputted from a personal computer in a wireless communication member of the rotational information display device through a wireless communication system utilizing a plurality of infrared ray sensors when the inputted data are transmitted to a control member installed on a rotational frame, a structure of the printed circuit board is simplified, thereby drastically improving the efficiency of work.
Owner:KIM SEONGUKK +2

Dynamic and hybrid RFID

Disclosed is an active or dynamic RFID tag that actively provides current status information regarding a particular item, as well as mechanisms for recognizing dynamic RFID information read from such RFID tag. Static identifying information regarding the particular item is provided either by the same active / dynamic RFID tag or by a different passive RFID tag. While the RFID tag may passively or actively provide general identification, the RFID actively provides status information that corresponds to changes in the corresponding item's status. In a first implementation, active RFID tags are positioned next to one or more components within a system so that each active RFID tag is powered and transmitting its RFID information when its corresponding component is operational. In contrast, each active RFID tag is positioned so that it is not powered and not transmitting its RFID information when its component is failing. Accordingly, an RFID reader can then know when a system has a failing component when a one of the component's corresponding active RFID tag is not transmitting its RFID information. In this first implementation, the active RFID either transmits or fails to transmit based on its component's status state. In a second implementation, a dynamic RFID is associated with a specific component, set of components, or system, and the dynamic RFID tag dynamically provides an RFID reader with RFID information that changes with its associated item's changing status state. The status state may correspond to any suitable parameter of the item or product that can change over time. Thus, the dynamic RFID provides different transmission frequencies based on different status states of its component or system.
Owner:CISCO TECH INC
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