Receiving unit driving control method, receiving device and electronic apparatus
First Claim
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1. A receiving unit driving control method comprising:
- operating the receiving unit in a first driving control mode of intermittently driving the receiving unit, which receives a satellite signal from a positioning satellite, in accordance with a first intermittent driving pattern having a first driving period of a predetermined unit time, wherein in the first driving control mode, a RF receiving circuit and a baseband processing circuit of the receiving unit are turned on and off together at the same time according to the first intermittent driving pattern, and the RF receiving circuit remains turned on while the baseband processing circuit is turned on; and
operating the receiving unit in a multistage driving control mode of intermittently driving the receiving unit with a multistage intermittent driving pattern, wherein in the multistage driving control mode, the baseband processing circuit is turned on and off in accordance with the first intermittent driving pattern, and while the baseband processing circuit is turned on for at least the predetermined unit time, the RF receiving circuit is turned on and off according to a second intermittent driving pattern having a second driving period that is shorter than the predetermined unit time of the first driving period.
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Abstract
An RF receiving circuit unit that receives a GPS satellite signal from a GPS satellite is intermittently driven by a first driving control of intermittently driving the RF receiving circuit unit with a first intermittent driving pattern and a multistage driving control of intermittently driving the RF receiving circuit unit with a multistage intermittent driving pattern in which a driving period in the first intermittent driving pattern is set to a second intermittent driving pattern of which an intermittent cycle is shorter than that of the first intermittent driving pattern.
16 Citations
10 Claims
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1. A receiving unit driving control method comprising:
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operating the receiving unit in a first driving control mode of intermittently driving the receiving unit, which receives a satellite signal from a positioning satellite, in accordance with a first intermittent driving pattern having a first driving period of a predetermined unit time, wherein in the first driving control mode, a RF receiving circuit and a baseband processing circuit of the receiving unit are turned on and off together at the same time according to the first intermittent driving pattern, and the RF receiving circuit remains turned on while the baseband processing circuit is turned on; and operating the receiving unit in a multistage driving control mode of intermittently driving the receiving unit with a multistage intermittent driving pattern, wherein in the multistage driving control mode, the baseband processing circuit is turned on and off in accordance with the first intermittent driving pattern, and while the baseband processing circuit is turned on for at least the predetermined unit time, the RF receiving circuit is turned on and off according to a second intermittent driving pattern having a second driving period that is shorter than the predetermined unit time of the first driving period. - View Dependent Claims (2, 3, 4, 5, 6, 7, 10)
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8. A receiving device comprising:
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a receiving unit that receives a satellite signal from a positioning satellite; and a switching control unit that controls driving of the receiving unit by switching between a plurality of operating modes including; a first driving control mode in which a receiving circuit and a baseband processing circuit of the receiving unit are turned on and off together at the same time according to a first intermittent driving pattern having a first driving period of a predetermined unit time; and a multistage driving control mode in which the baseband processing circuit is turned on and off in accordance with the first intermittent driving pattern, and when the baseband processing circuit is turned on, the receiving unit is turned on and off according to a second intermittent driving pattern having a second driving period that is shorter than the predetermined unit time of the first driving period. - View Dependent Claims (9)
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Specification