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80results about How to "Long delay time" patented technology

System using priority data of a host recall request to determine whether to release non-volatile storage with another host before processing further recall requests

Disclosed is a system for handling recall requests for data maintained in a storage device accessible to multiple systems. Initially, a storage device is allocated to the first host system to process recall requests in a recall queue including a plurality of recall requests. A second host recall request is initiated with the second host system to recall data from the storage device. The second host system determines whether the storage device is allocated to the first host system. If so, the second host systems stores priority data in a common or shared data structure indicating a priority of the second host recall request after determining that the storage device is allocated to the first host system. The first host system then conditionally releases the storage device before processing all the recall requests needing the subject tape in its queue to make the storage device available if the priority in the common data structure is higher than its own highest priority request. The second host system retries the second host recall request after the first host system releases the storage device. The second host system then determines whether the storage device is available and whether the highest priority second host recall request is greater than or equal to the priority data indicated in the data structure when retrying the second host recall request. The storage device is allocated to the second host system to process the second host recall request after determining that the storage device is available and that the priority of the second host recall request is greater than or equal to the priority data indicated in the data structure.
Owner:IBM CORP

Oscillator and design method thereof

The invention discloses an oscillator and a design method thereof, comprising an offset module, a delaying module, a conversion module, a damping module and an output module; wherein, the offset module is used for generating an offset current according to an input signal; the delaying module is used for receiving the offset current which is generated by the offset module and generates the oscillation signals with scheduled periods according to the offset signal; the delaying module comprises a current source submodule, a variable resistance submodule and an inverter submodule; the maximum up-pulling current and the maximum down-pulling current of the delaying module are controlled by the power source submodule, thus controlling the power loss current of the delaying module; the delaying time of the delaying module is controlled by the variable resistance submodule; the gate capacitance of the delaying module is adjusted by the inverter submodule, thus controlling the power loss of the delaying module. The conversion module reduces the power loss of the oscillator by further reducing the DC current. The invention provides the oscillator which has simple structure, high efficiency, side application range and ultra-low power loss, and is especially suitable for low frequency application.
Owner:GIGADEVICE SEMICON (BEIJING) INC
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