发明授权
- 专利标题: Receiving apparatus with intermittent receiving
- 专利标题(中): 接收装置间歇接收
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申请号: US09106747申请日: 1998-06-30
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公开(公告)号: US06359870B1公开(公告)日: 2002-03-19
- 发明人: Masayuki Inoue , Yukio Sato
- 申请人: Masayuki Inoue , Yukio Sato
- 优先权: JP9-180865 19970707
- 主分类号: H04J306
- IPC分类号: H04J306
摘要:
A receiving apparatus with intermittent receiving for receiving a TDMA SIG is disclosed. The receiving apparatus receives a FRQ reference SIG to control a voltage controlled OSC for generating a system clock and receives a TDMA synchronizing SIG to control the phase of a TDMA timing SIG to establish the reference FRQ synchronizing and the TDMA synchronizing. To save a power consumption in the sleep interval during the intermittent receiving, it is stopped to supply a supply power to a d/a converter supplied with the FRQ control data to supply a FRQ control voltage to the voltage controlled OSC. Just before an intermittent receiving interval, that is, the end of the sleep mode, the supply power to the d/a converter is supplied and the TDMA timing is compensated by calculation from the sleeping interval and the FRQ of the self-oscillation of the voltage controlled OSC. The TDMA timing may be not compensated but receives the TDMA synchronizing SIG to control the TDMA synchronizing if the phase difference in the TDMA timing is within the range of the correlator. The FRQ reference SIG may be received to compensate the FRQ and phase of the system clock and the TDMA synchronizing timing may be compensated by calculation from the sleeping interval and the FRQ of the self-oscillation of the voltage controlled OSC.
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