Data sampling devices
AssigneeWuxi Vimicro Corporation
InventorChuan Lin
Life of this patent
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Abstract
Designs of a sampling controller working with memory chips are described. The designs enable a memory chip to work in high frequency clocks, resulting in high data throughput rate. A data sampling device includes a memory chip and a sampling controller. The sampling controller includes an asynchronous data memory. A data writing port of the asynchronous data memory receives a clock signal and employs the clock signal as a writing clock to store the sampling data into an internal memory and activate a data reading port thereof to read and output the sampling data.
Claims18
A sampling controller coupled to a memory chip, the memory chip having a data output port and a sampling clock output port, the sampling controller comprising:
- a first input unit receiving a sampling data from the data output port of the memory chip;
- a second input unit receiving a clock signal from the sampling clock output port of the memory chip;
- and
- an asynchronous data memory including a memory data writing port, a memory data reading port, and an internal memory, the memory data writing port receiving the clock signal and employing the clock signal as a writing clock signal to store the sampling data of the first input unit into the internal memory, wherein when the sampling data is stored to the internal memory, the memory data reading port reads the sampling data from the internal memory.
A sampling controller for reading sampling data from a memory chip, the sampling controller comprising:
- a first input unit receiving a sampling data from the memory chip;
- a second input unit receiving a clock signal from the memory chip;
- and
- an asynchronous data memory including a memory data writing port, a memory data reading port, and an internal memory;
- the memory data writing port receiving the clock signal and employing the clock signal as a writing clock signal to store the sampling data of the first input unit into the internal memory;
- when the sampling data is stored to the internal memory, the memory data reading port reads the sampling data from the internal memory.
Dependencies are inferred from the claim text.