Invention Grant
- Patent Title: Real time clock integrated circuit and electronic apparatus using the same
- Patent Title (中): 实时时钟集成电路和电子设备使用相同
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Application No.: US11767527Application Date: 2007-06-25
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Publication No.: US07649422B2Publication Date: 2010-01-19
- Inventor: Hong-Chu Chen , Jiann-Ming Shiau
- Applicant: Hong-Chu Chen , Jiann-Ming Shiau
- Applicant Address: TW Hsinchu
- Assignee: Novatek Microelectronics Corp.
- Current Assignee: Novatek Microelectronics Corp.
- Current Assignee Address: TW Hsinchu
- Agency: Jianq Chyun IP Office
- Priority: TW96112238A 20070409
- Main IPC: H03L7/00
- IPC: H03L7/00
Abstract:
A real time clock integrated circuit (RTC IC) and an electronic apparatus thereof are provided. In the RTC IC, only a low-power oscillator is used for generating a standard clock for a real time counter, and the standard clock with a frequency drift of the low-power oscillator is compensated through table lookup. Accordingly, the power consumption, fabrication cost and design complexity of the RTC IC are reduced and the counting operation duration of the RTC IC is prolonged.
Public/Granted literature
- US20080246549A1 REAL TIME CLOCK INTEGRATED CIRCUIT AND ELECTRONIC APPARATUS USING THE SAME Public/Granted day:2008-10-09
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