摘要:
A circuit and method for switching between a system's internal clock and an external synchronization clock when a stable external clock has been detected, and for switching back to operating the system using said internal clock when a predetermined number of sequential external clock pulses exceed a predetermined switching period dropout threshold or are otherwise missing.
摘要:
In a switch mode power supply, a circuit and method for switching between an internal clock and an external synchronization clock when a stable external clock has been detected, and for switching back to operating the power supply using said internal clock when a predetermined number of sequential external clock pulses exceed a predetermined switching period dropout threshold or are otherwise missing. In one embodiment, a power system comprises a plurality of power supplies connected in parallel to a common load and where each power supply is synchronized to the external clock when a stable external clock has been detected by each.
摘要:
A collaboration system includes a remote server system and one or more client devices connected to the remote server system, at least one of which being a first client device that includes a touch screen display. Upon receipt of a user instruction, the collaboration system opens a document at the first client device and displays the document on the touch screen display to a first user. The collaboration system detects a first comment on the document from the first user through interacting with the touch screen display. The collaboration system receives a second comment on the document from the remote server system. The second comment is generated by a second user of a second client device and transmitted to the remote server system through a computer network. The collaboration system displays, concurrently, the first comment and the second comment on the touch screen display.
摘要:
An improved staining method is described for staining a biopolymer such as a peptide, a protein, an RNA, a DNA, an oligosaccharide or a complex containing a peptide, a protein, an RNA, a DNA, or an oligosaccharide in a matrix. The method includes the step of moving a staining reagent into the matrix using an electric force. The staining time can be dramatically reduced relative to conventional technologies. The improved staining method can particularly be used, for example, to stain proteins after gel separation. Other related methods and related kits are also described.
摘要:
This method is a direct development method for achieving a solid state image pickup device with a high speed electronic shutter on itself. A field integrating time is divided into a useless integrating time and a useful integrating time. The shorter one is the useful integrating time, the faster one is the electronic shutter speed. The useless integrated charges are cleared by the "photographic plate" clearing method. This image pickup camera apparatus is a high speed image pickup camera apparatus having low or slight high frame frequency, short explosure. A clear, relatively still or very slowly spinning images can be obtained by adjusting the field frequency of the high speed pickup camera apparatus.
摘要:
An improved staining method is described for staining a biopolymer such as a peptide, a protein, an RNA, a DNA, an oligosaccharide or a complex containing a peptide, a protein, an RNA, a DNA, or an oligosaccharide in a matrix. The method includes the step of moving a staining reagent into the matrix using an electric force. The staining time can be dramatically reduced relative to conventional technologies. The improved staining method can particularly be used, for example, to stain proteins after gel separation. Other related methods and related kits are also described.
摘要:
A compressor unit including a compressor housing, a compressor impeller, a gas diffuser channel, a cylinder-shaped rotating diffuser wall, and a supporting device. The compressor housing includes an air inlet and an air collection channel. The compressor impeller is installed in the compressor housing. The gas diffuser channel is disposed between the compressor impeller and the air collection channel and connected to the air collection channel. The cylinder-shaped rotating diffuser wall is disposed between an inner wall of the compressor housing and the compressor impeller and rotates in the same direction as the compressor impeller. The supporting device is disposed in the compressor housing to support the cylinder-shaped rotating diffuser wall. The compressor unit has high response speed, large air inlet flow, and high efficiency.
摘要:
A compressor unit including a compressor housing, a compressor impeller, a gas diffuser channel, a cylinder-shaped rotating diffuser wall, and a supporting device. The compressor housing includes an air inlet and an air collection channel. The compressor impeller is installed in the compressor housing. The gas diffuser channel is disposed between the compressor impeller and the air collection channel and connected to the air collection channel. The cylinder-shaped rotating diffuser wall is disposed between an inner wall of the compressor housing and the compressor impeller and rotates in the same direction as the compressor impeller. The supporting device is disposed in the compressor housing to support the cylinder-shaped rotating diffuser wall. The compressor unit has high response speed, large air inlet flow, and high efficiency.
摘要:
Electrostatic discharge (ESD) protection circuits for self-protecting cascode stages are disclosed. In one example, an ESD protection circuit is described. A cascode stage is configured to selectively couple an output pad to a reference terminal. An ESD sensor may detect a change in voltage indicative of an ESD event occurring at the output pad, causing a gate drive to turn on the cascode stage to conduct ESD current in response to detection of the ESD event at the output pad. A leakage blocker is also included to prevent leakage current from the cascode stage to the gate drive while there is not an ESD event.
摘要:
A circuit and method for switching between a system's internal clock and an external synchronization clock when a stable external clock has been detected, and for switching back to operating the system using said internal clock when a predetermined number of sequential external clock pulses exceed a predetermined switching period dropout threshold or are otherwise missing.