Invention Grant
- Patent Title: Timer circuit storing a plurality of time measurements with different sets of measurement time that can be realized by starting the time measurements asynchronously
- Patent Title (中): 定时器电路存储可以通过异步开始时间测量来实现的具有不同组的测量时间的多个时间测量
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Application No.: US11908468Application Date: 2006-03-31
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Publication No.: US07949891B2Publication Date: 2011-05-24
- Inventor: Hideo Namiki
- Applicant: Hideo Namiki
- Applicant Address: JP Tokyo
- Assignee: NEC Corporation
- Current Assignee: NEC Corporation
- Current Assignee Address: JP Tokyo
- Agency: Sughrue Mion, PLLC
- Priority: JP2005-102805 20050331
- International Application: PCT/JP2006/306832 WO 20060331
- International Announcement: WO2006/106917 WO 20061012
- Main IPC: G06F1/14
- IPC: G06F1/14 ; G06F1/00 ; G06F11/00
Abstract:
A timer circuit for a mobile communication terminal includes a counter operating under a reference clock, a storage unit that stores a timer timeout time corresponding to a time measurement request when receiving the time measurement request from a CPU, and a comparator 104 that generates an interruption signal to the CPU 120 when the time corresponding to the output value of the counter is coincident with the timer timeout time stored in the storage unit. The storage unit stores a plurality of sets of timer timeout time corresponding to a plurality of time measurement requests, and a stored timer timeout time which is closest to the time corresponding to the output value of the counter is set to the timer timeout time to be compared by the comparator.
Public/Granted literature
- US20090083568A1 TIMER CIRCUIT, MOBILE COMMUNICATION TERMINAL, USING THE SAME, AND ELECTRONIC DEVICE USING THE SAME Public/Granted day:2009-03-26
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