发明名称 |
APPARATUS FOR SIGNAL EVALUATION |
摘要 |
A signal persistence time interval recognition system reproduces a condition of an input signal as a condition of an output signal only when the input signal condition persists for at least a predetermined time interval. The system periodically scans the input signal condition and has a first memory (ROM) for storing a start value indicative of the time interval. A second memory (RAM) stores a value indicative of the time counted since the detection of a difference between the input and output signal conditions. A third memory stores the output signal condition and a processor brings the start value from the first memory into the second memory when no difference is detected. The processor modifies the value in the second memory each time such a difference is detected and until a value is reached indicating that the time interval has been counted, the output signal condition in the third memory being then changed. The first memory only stores a single start value for all conditions of the input signal and the processor perform the modification in the second memory independently of the first memory. |
申请公布号 |
CS8410200(A3) |
申请公布日期 |
1992.01.15 |
申请号 |
CS19840010200 |
申请日期 |
1984.12.21 |
申请人 |
INTERNATIONAL STANDARD ELECTRIC CORPORATION |
发明人 |
SALLAERTS DANIEL;RAIHER MICHEL CAMILLE AUGUSTE RENE |
分类号 |
H04Q3/72;G01R19/165;G01R29/027;H04M3/02;H04M3/22 |
主分类号 |
H04Q3/72 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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