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Title:
SIGNAL PROCESSING DEVICE AND METHOD
Document Type and Number:
WIPO Patent Application WO/2016/194655
Kind Code:
A1
Abstract:
The present disclosure pertains to a signal processing device and method with which the required power can be reduced. In this signal processing device a real-time clock (RTC) of a main chip and a RTC of a power supply chip are synchronized before the power to the main chip is stopped, and after the power to the main chip is restored, the RTC of the main chip is again synchronized with the time of the RTC of the power supply chip. Thus, the RTCs are able to handle continuous time information before and after the power is stopped. The present disclosure can be applied to a GPS module in which multiple chips are used to form a digital circuit unit.

Inventors:
OHARA Sotaro (1-7-1 Konan, Minato-k, Tokyo 75, 〒1080075, JP)
TANAKA Katsuyuki (1-7-1 Konan, Minato-k, Tokyo 75, 〒1080075, JP)
TAKAOKA Katsumi (1-7-1 Konan, Minato-k, Tokyo 75, 〒1080075, JP)
IZUMI Keita (1-7-1 Konan, Minato-k, Tokyo 75, 〒1080075, JP)
HOUCHI Suguru (1-7-1 Konan, Minato-k, Tokyo 75, 〒1080075, JP)
HIDAI Gaku (1-7-1 Konan, Minato-k, Tokyo 75, 〒1080075, JP)
TAKAGI Yutaka (1-7-1 Konan, Minato-k, Tokyo 75, 〒1080075, JP)
TAKAHASHI Hideki (1-7-1 Konan, Minato-k, Tokyo 75, 〒1080075, JP)
AWATA Hideki (1-7-1 Konan, Minato-k, Tokyo 75, 〒1080075, JP)
KATAYAMA Yasushi (1-7-1 Konan, Minato-k, Tokyo 75, 〒1080075, JP)
YOSHIMOCHI Naoki (1-7-1 Konan, Minato-k, Tokyo 75, 〒1080075, JP)
SHIMIZU Toshimasa (4-16-1 Okata Atsugi-sh, Kanagawa 21, 〒2430021, JP)
Application Number:
JP2016/065025
Publication Date:
December 08, 2016
Filing Date:
May 20, 2016
Export Citation:
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Assignee:
SONY SEMICONDUCTOR SOLUTIONS CORPORATION (4-14-1, Asahi-cho Atsugi-sh, Kanagawa 14, 〒2430014, JP)
International Classes:
G06F1/14; G04G5/00; G04G7/00; G04G99/00
Domestic Patent References:
2012-09-13
Foreign References:
JP2013205286A2013-10-07
JP2009014393A2009-01-22
Attorney, Agent or Firm:
NISHIKAWA Takashi et al. (Nishishinjukukimuraya Building 9F, 5-25 Nishi-Shinjuku 7-chome, Shinjuku-k, Tokyo 23, 〒1600023, JP)
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