发明名称 |
DEVICE FOR PRODUCING A SIGNAL HAVING A SUBSTANTIALLY TEMPERATURE-INDEPENDENT FREQUENCY |
摘要 |
The invention concerns a device (1) comprising a mixer (4) producing a signal (S4) having a frequency (F4) equal to the difference between two frequencies (F2, F3) which are those of the two signals (S2, S3) each produced by a generator (2, 3) and which vary parabolically depending on the temperature (T) with quadratic coefficients ( beta 1, beta 2) different from each other. In order to make the frequency (F4) of the signal (S4) produced by the mixer (4) at least substantially independent of temperature (T), the generators (2, 3) are so designed that the relationship of the quadratic coefficients ( beta 1, beta 2) is equal to the inverse relationship of the values (F2r, F3r) which the corresponding frequencies (F2, F3) have at a predetermined temperature (Tr).
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申请公布号 |
WO0152001(A3) |
申请公布日期 |
2001.12.20 |
申请号 |
WO2000EP12434 |
申请日期 |
2000.12.07 |
申请人 |
ETA SA FABRIQUES D'EBAUCHES;DALLA PIAZZA, SILVIO;FARINE, PIERRE-ANDRE;BUEHLER, ROGER;HECK, PASCAL |
发明人 |
DALLA PIAZZA, SILVIO;FARINE, PIERRE-ANDRE;BUEHLER, ROGER;HECK, PASCAL |
分类号 |
G04G3/04;G04G3/00;G04G3/02;H03B21/01;(IPC1-7):G04G3/02 |
主分类号 |
G04G3/04 |
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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