| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a radio-controlled watch capable of raising reception success rate, without complicating the constitution. SOLUTION: A time code judging part 3 outputs minute bit series and hour bit series (block), etc. A block judging flag controller 4 sets '1' for a bit part, corresponding to a flag 7 for an obtained block and leaves '0' for not obtained case. If the lower 6 bits in the flag 7 for a unit period (4 cycles: 4 minutes, for example) becomes '1', then all blocks in a standard time information are supposed to be obtained, and the time information at the moment is contained in a tentative time memory 9 as tentative time information. A unit time period is executed twice, and if the first tentative time and the second tentative time are obtained, the time information production part 10 makes quality time information judgment, based on both the tentative times.</p> |
