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Realizing method for ultrasonic B film playback circuit based on programable logic device

An implementation method and technology of programming logic, applied in the field of circuits for saving and playback display, can solve the problems of small SRAM capacity, limited capacity, and narrow DRAM bandwidth, and achieve the effect of improving overall performance and saving hardware costs.

Inactive Publication Date: 2005-04-27
SHENZHEN MINDRAY BIO MEDICAL ELECTRONICS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, DRAM has the disadvantages of narrow bandwidth and slow access speed, while SRAM has the disadvantages of small capacity, high power consumption and high cost, and the use of multiple integrated circuits to realize memory control will also result in high cost and limited capacity of movie playback circuits. limitations and lack of flexibility

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  • Realizing method for ultrasonic B film playback circuit based on programable logic device
  • Realizing method for ultrasonic B film playback circuit based on programable logic device
  • Realizing method for ultrasonic B film playback circuit based on programable logic device

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Embodiment Construction

[0009] Below in conjunction with the best embodiment shown in the accompanying drawings, it will be further described in detail.

[0010] The present invention is based on the implementation method of the B-ultrasound movie playback circuit of the programmable logic device, in order to construct the circuit 500 that controls the data memory 200 used in the B-ultrasound movie playback process, and the data memory 200 adopts SDRAM to realize, which just It is faster than using DRAM as a memory, and at the same time, it is cheaper and smaller than using SRAM as a memory. Such as figure 1 The B-ultrasound movie playback circuit 500 based on the programmable logic device realized by the method of the present invention is realized by a programmable logic device, and its internal composition includes: a microprocessor interface module 510 connected with an external microprocessor (CPU) 100 , the SDRAM control module 520 connected with the memory 200 for external B-ultrasound movie p...

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Abstract

The present invention is B-mode ultrasonic film replaying circuit based on programmable logic device for controlling data memory for B-mode ultrasonic film replaying. The data memory is realized with SDRAM, and the circuit is realized with one programmable logic device and consists of microprocessor interface module, memory controlling module, input fore end data recording module, output selecting module, arbitration module, and film replaying scanning line creating module. The microprocessor is matched with the circuit to control the distribution of image data in data memory and non-volatile memory. Compared with available technology, the present invention has lower hardware cost and raised integral performance of B-mode ultrasonic film replaying circuit.

Description

technical field [0001] The invention relates to B-mode ultrasonic diagnostic equipment, in particular to a circuit for storing real-time B-mode ultrasonic image data in a memory for storage and playback display. Background technique [0002] The prior art relates to a circuit for storing real-time B-mode ultrasound image data in a memory for preservation and playback display, usually using asynchronous dynamic random access memory (DRAM) or asynchronous static random access memory (SRAM) as a data memory, and using multiple The integrated circuit cooperates to realize the control of the memory. However, DRAM has the disadvantages of narrow bandwidth and slow access speed, while SRAM has the disadvantages of small capacity, high power consumption and high cost, and the use of multiple integrated circuits to realize memory control will also result in high cost and limited capacity of movie playback circuits. limitations and lack of flexibility. Contents of the invention ...

Claims

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Application Information

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IPC IPC(8): G06F19/00
Inventor 何绪金文强黄海涛
Owner SHENZHEN MINDRAY BIO MEDICAL ELECTRONICS CO LTD