Title:
CLOCKING CIRCUIT, ELECTRONIC APPARATUS, AND CLOCKING CIRCUIT CONTROL METHOD
Document Type and Number:
WIPO Patent Application WO/2018/154876
Kind Code:
A1
Abstract:
Provided is a clocking circuit comprising a resistance element and a capacitance element, wherein time accuracy is improved. A switch selects, in accordance with a selection signal, any of a plurality of passive elements which have mutually different impedances, and then supplies current. A comparator compares a first voltage and a second voltage generated in the passive element selected from among the plurality of passive elements, and then outputs the comparison results as a periodic signal. An initialization unit initializes the first or second voltage each time the periodic signal changes to a prescribed value. A counter circuit counts a discrete value in synchronization with the periodic signal, and outputs such value as a timer value. A control circuit changes the supply destination of the current using the selection signal, when the timer value indicates a prescribed switching time.
Inventors:
WATANABE HIROYUKI (JP)
Application Number:
PCT/JP2017/041014
Publication Date:
August 30, 2018
Filing Date:
November 15, 2017
Export Citation:
Assignee:
SONY SEMICONDUCTOR SOLUTIONS CORP (JP)
International Classes:
G06F1/14; G04F3/00; G06F1/04; G06F1/08
Foreign References:
| JP2013005022A | 2013-01-07 | |||
| JP2012088979A | 2012-05-10 | |||
| JP2013117785A | 2013-06-13 | |||
| JP2011135349A | 2011-07-07 |
Attorney, Agent or Firm:
MARUSHIMA, Toshikazu (JP)
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