JP2005156197A5 - - Google Patents

Claims (7)

A sensor that outputs an analog signal that changes according to changes in the surrounding environment;
An A / D converter for converting an analog signal from the sensor into a digital signal;
A memory for capturing the digital signal converted by the A / D converter;
A vehicle signal processing apparatus comprising means for checking data of the digital signal when the digital signal is taken into the memory. In claim 1,
A signal processing apparatus for an automobile, comprising check bit adding means for adding a check bit to a digital signal fetched from the A / D converter. In claim 2,
A signal processing apparatus for an automobile, comprising a counter that counts every predetermined bit using the check bit. In claim 2,
A signal processing apparatus for an automobile, wherein a data identification code is used for the check bit. In any one of Claims 2 thru | or 4,
A signal processing apparatus for an automobile, wherein data check of the digital signal fetched into the memory is performed by the check bit. In any one of Claims 1 thru | or 5,
The signal processing apparatus for an automobile, wherein the memory includes direct memory access. A sensor that outputs an analog signal that changes according to changes in the surrounding environment;
A converter for converting an analog signal from the sensor into a digital signal;
A signal processing circuit for processing a sensor output signal converted into a digital value by the A / D converter, and the signal processing circuit includes a memory including a direct memory access (DMA) and a digital captured by the converter. A check bit adding device for adding a check bit to the digital data of the signal. By the direct memory access, one block ((a + b) bits × N, a is the data bit width, b is the check bit width, and N is A signal processing apparatus for an automobile, which captures digital data every sampling data number (N = 2 ⁿ , where n is an integer).