Digit bit increasing system
A digital bit and filter technology, applied in the field of digital bit increase system, can solve the problem of low resolution of sensor product output, and achieve the effect of easy popularization and application, high resolution and high linearity
Pending Publication Date: 2018-03-20
四川知微传感技术有限公司
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Problems solved by technology
[0003] The purpose of the present invention is to solve the problem that the output resolution of existing sensor products is not high, and to provide a digital bit increase system, which can improve the output resolution of sensor products during application, thereby facilitating the popularization and application of sensor products
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[0022] Such as figure 1 , figure 2 As shown, a digital bit addition system includes a digital bit addition module and a clock control module, wherein the digital bit addition module includes a cascaded integral comb filter and a moving average filter connected to the cascaded integral comb filter. The clocks of both the cascaded integral comb filter and the moving average filter of the present embodiment are connected to the clock signal terminal clk of the clock control module, and the clock control module is used to provide clocks to the cascaded integral comb filter and the moving average filter Signal. The cascaded integral comb filter of this embodiment is used to receive the clock signal sent by the clock control module, and receive the digital code output by the sensor when the trigger start clock signal is received, and then perform integration and frequency reduction, and realize during the integration process increase in digits. The moving average filter in this ...
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The invention discloses a digit bit increasing system. The digit bit increasing system comprises a digit bit increasing module and a clock control module; the digit bit increasing module comprises a cascaded integrator comb filter and a moving-average filter; the clock control module is used for providing clock signals for the cascaded integrator comb filter and the moving-average filter; the cascaded integrator comb filter is used for receiving the clock signals sent out by the clock control module, receiving a digital code outputted by a sensor when a trigger start clock signal is received,and then performing integration and frequency reduction and realizing the increment of the digits in the integrating process; and the moving-average filter is used for receiving the clock signals sentout by the clock control module, and removing inherent noises of output signals of clock jitter and the cascaded integrator comb filter when the trigger start clock signal is received, so as to realize smooth output. The digit bit increasing system provided by the invention uses less components, is convenient to implement, and can improve the output resolution of sensor products, thus the popularization and application of the sensor products are facilitated.
Description
technical field [0001] The invention relates to digital bit extension technology, in particular to a digital bit increase system. Background technique [0002] With the continuous development of semiconductor technology and the diversification of Internet of Things application requirements, a wide variety of sensor modules have emerged. In order to adapt to multiple application scenarios, the requirements for sensor performance are getting higher and higher. Because the inherent noise of the sensor product itself is difficult to be suppressed, and it is easily interfered by external signals, the output resolution is not high, which affects the popularization and application of the sensor product to a certain extent. Contents of the invention [0003] The purpose of the present invention is to solve the problem that the output resolution of the existing sensor products is not high, and to provide a digital bit increase system, which can improve the output resolution of the...
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IPC IPC(8): H03H17/06
CPCH03H17/0671
Inventor 李荣宽薛晓东柳林刚
Owner 四川知微传感技术有限公司