Invention Grant
US08692713B2 Receiving device, receiving method, computer program, and portable terminal
有权
接收设备,接收方式,计算机程序和便携式终端
- Patent Title: Receiving device, receiving method, computer program, and portable terminal
- Patent Title (中): 接收设备,接收方式,计算机程序和便携式终端
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Application No.: US13703749Application Date: 2011-07-06
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Publication No.: US08692713B2Publication Date: 2014-04-08
- Inventor: Katsuyuki Tanaka , Hideki Takahashi , Hideki Awata
- Applicant: Katsuyuki Tanaka , Hideki Takahashi , Hideki Awata
- Applicant Address: JP Tokyo
- Assignee: Sony Corporation
- Current Assignee: Sony Corporation
- Current Assignee Address: JP Tokyo
- Agency: Oblon, Spivak, McClelland, Maier & Neustadt, L.L.P.
- Priority: JP2010-159596 20100714
- International Application: PCT/JP2011/065457 WO 20110706
- International Announcement: WO2012/008338 WO 20120119
- Main IPC: G01S19/34
- IPC: G01S19/34

Abstract:
To provide a receiving device which is capable of reducing average power and peak power by holding pseudo synchronization of a satellite signal during a sleep period. Provided is a receiving device including a receiving unit for receiving a signal from a satellite, a frequency conversion unit for converting a frequency of the received signal into a predetermined intermediate frequency, a synchronization acquisition unit for carrying out synchronization acquisition and for detecting a carrier frequency, and a synchronization holding unit for assigning and setting, per satellite, a phase of the spread code and the carrier frequency to each of a plurality of channels independently provided in a corresponding manner to a plurality of the satellites to synchronously hold the spread code and a carrier and also for demodulating a message included in the intermediate frequency. The synchronization holding unit includes a spreading code generation unit for generating a spreading code synchronized with the spread code, and in a sleep period in which a positioning operation is not carried out, the synchronization holding unit causes only the spreading code generation unit to operate and a counter that the synchronization holding unit refers to also operates.
Public/Granted literature
- US20130094541A1 RECEIVING DEVICE, RECEIVING METHOD, COMPUTER PROGRAM, AND PORTABLE TERMINAL Public/Granted day:2013-04-18
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