发明名称 |
Electronic timepiece including integrated circuitry |
摘要 |
An integrated circuit for an electronic timepiece includes at least one semiconductor nonvolatile memory device. Reference data can be checked across a pair of output terminals prior to being stored in at least one EPROM to check the accuracy and acceptability of the reference data for driving a motor of the timepiece. The reference data once written into the EPROM serves as control data. Both the reference data and control data are used for controlling at least one function of the timepiece. The control data also can be checked across the output terminals to determine its accuracy and acceptability for driving the motor. Testing of the reference data and control data can be performed on a faster than real time basis.
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申请公布号 |
US5253229(A) |
申请公布日期 |
1993.10.12 |
申请号 |
US19920938986 |
申请日期 |
1992.09.01 |
申请人 |
SEIKO EPSON CORPORATION |
发明人 |
MORIYA, TATSUO |
分类号 |
G04D7/00;G04G99/00;(IPC1-7):G04C19/00;G04F5/00;G04B17/12 |
主分类号 |
G04D7/00 |
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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