2results about How to "Shorten receiving time" patented technology

This application provides a multi-nucleus magnetic resonance imaging (MRI) device, belonging to the field of medical device technology. A multi-nucleus radio frequency (RF) transmitting unit is used to generate RF signals from at least two different nuclides. A gradient magnetic field unit is used to provide the gradient magnetic field required for spatial encoding. A multi-nucleus RF receiving unit is used to receive echo signals from different nuclides. A control unit is configured to adjust the timing sequence of the multi-nucleus RF transmitting unit, the multi-nucleus RF receiving unit, and the gradient magnetic field unit to achieve parallel excitation and synchronous reception of at least two different nuclides. Through the multi-nucleus RF transmitting unit, the gradient magnetic field unit, the multi-nucleus RF receiving unit, and the control unit in this application, parallel excitation of RF signals from at least two different nuclides and synchronous reception of echo signals from different nuclides are achieved, reducing the number of excitations and reception time required for imaging, improving imaging speed, and solving the problem of slow imaging speed in traditional devices.

The invention relates to a method for performing data access management of a memory device in a predetermined communication architecture by means of multi-table checking, a memory controller of the memory device, the memory device and an electronic device. The method includes: using a memory controller to receive a first command from a host device, wherein the first command indicates that first data located at a first logical address is required to be read; checking at least one logical-to-physical address mapping table to generate a first checking result, starting to perform a first read operation according to the first checking result, and checking a temporary physical-to-logical address mapping table corresponding to a first active block to generate a second checking result, selectively performing a second read operation according to the second check result; and returning the first data to the host device, wherein the first data is read according to one of the first check result and the second check result.