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1. 发明专利

JPH11304969A CLOCKING DEVICE 失效
公开(公告)号：JPH11304969A
公开(公告)日：1999-11-05
申请号：JP11106498
申请日：1998-04-21
申请人： SEIKO EPSON CORP
发明人： MARUYAMA AKIHIKO , KOIKE NOBUHIRO , OKUHARA KENICHI , AKAHA HIDEHIRO
IPC分类号： G04C3/14 , G04C10/00 , G04F7/08 , G04F8/00 , G04G19/02 , G04G1/00
摘要： PROBLEM TO BE SOLVED: To perform redrive by recharging a power supply battery when an operation stops due to a voltage drop by canceling the disabling of the operation when reaching a state where a power supply voltage can be applied so that operation is enabled from a state where a time measurement means is disabled due to a low voltage. SOLUTION: Immediately after the power supply voltage of a secondary battery recovers and a chronograph control part is restarted, a chronograph stays being disabled. In this case, when the power supply voltage of the secondary battery being detected by a voltage detection circuit 1812 is equal to or more than a specific voltage, a first chronograph disable latch circuit 1730 where a detection signal SDK is inputted outputs an L (disable cancellation) latch signal S1 to a start/stop control circuit 1731 and a second chronograph disable latch circuit 1735. Therefore, a signal B of both the circuits reaches H and a latch signal S2 reaches L. Therefore, a mode control circuit 1824 does not output a reset control signal SRC for disabling a chronograph, thus canceling the disabling of a chronograph reference signal generation circuit 1825 and enabling the chronograph part to start running electronic timepiece hands by operating a button.

2. 发明专利

JPH0915350A ELECTRONIC TIMEPIECE 失效
公开(公告)号：JPH0915350A
公开(公告)日：1997-01-17
申请号：JP16492595
申请日：1995-06-30
申请人： CITIZEN WATCH CO LTD
发明人： MURAKAMI AKIISA , SHIMODA KENJI , YAGI MICHIKO , FUJITA KENJI
IPC分类号： G04C3/00 , G04C3/14 , G04C9/08 , G04F8/00 , G04F8/02
摘要： PURPOSE: To drive an electronic timepiece with one motor without sacrificing chronograph function by controlling the rotary direction of a second hand on returning corresponding to the zero-returning direction of the second hand when shifting from a normal time mode to a chronograph mode. CONSTITUTION: For example, when operating a chronograph function is operated for 15s. when a current time is 10 o'clock past 10m 24s, an external switch is pressed and a second hand is rapidly fed in inverse direction and is moved to the position of 12 o'clock. At that time, since an electronic clock is driven by one motor, the hour and minute hands indicate 10 o'clock past 10m which is delayed from a current time by 24s. The second hand becomes a chronograph second hand and starts counting. When it is stopped after 15s., it stops for 10s., then the chronograph mode is automatically canceled, the clock hand rotates in forward direction by 34 seconds, and indicates the current time, 10 o'clock past 10m 49s. In the case of 10 o'clock 10m 25s, the clock hand rotates is formed direction and moves to the position of 12 o'clock, rotates in backward direction, and returns to the current time. In the case of 55s., the clock hand moves and returns in forward direction, thus controlling the rotary direction on returning corresponding to the zero-returning direction when the clock hand moves and driving the electronic timepiece with one motor.

3. 实用新型

JPH0811037Y2 失效
公开(公告)号：JPH0811037Y2
公开(公告)日：1996-03-29
申请号：JP8325589
申请日：1989-07-14
IPC分类号： G04F8/00 , H02K7/118

4. 发明专利

JPH0786538B2 失效
公开(公告)号：JPH0786538B2
公开(公告)日：1995-09-20
申请号：JP18877785
申请日：1985-08-28
IPC分类号： G04F8/02 , G04C3/14 , G04F8/00

5. 发明专利

JPH0544994B2 失效
公开(公告)号：JPH0544994B2
公开(公告)日：1993-07-07
申请号：JP14169484
申请日：1984-07-09
申请人： SEIKO EPSON CORP
发明人： YAMAGUCHI TAKASHI
IPC分类号： G04C3/14 , G04C3/00 , G04F8/00 , G04F8/02

6. 发明专利

JPH0530236B2 失效
公开(公告)号：JPH0530236B2
公开(公告)日：1993-05-07
申请号：JP20538484
申请日：1984-09-29
申请人： CITIZEN WATCH CO LTD
发明人： KAMYAMA YASUO
IPC分类号： G04F7/08 , G04C3/14 , G04C23/08 , G04F8/00 , G04F8/02

7. 发明专利

JPH03243887A STOPWATCH 失效
公开(公告)号：JPH03243887A
公开(公告)日：1991-10-30
申请号：JP4066990
申请日：1990-02-21
申请人： CASIO COMPUTER CO LTD
发明人： SAKAZAKI NAOYUKI
IPC分类号： G04F10/00 , G04F8/00 , G04F10/04
摘要： PURPOSE:To easily set target time by providing a time measuring means, a target time storage means, and a target time storage means which stores measurement data of the time measuring means in the target time storage means as the target time. CONSTITUTION:A time measuring circuit 4 counts pulse signals of 100Hz supplied through an AND circuit 3 to measure an elapsed time. The measurement data obtained by the circuit 4 are outputted to a decoder driver 5 and outputted to a time storage circuit 8 through an AND circuit 7. The circuit 8 is stored with the target time with a setting switch 19 and when the measurement data are inputted from the circuit 4, the measurement data from the circuit 7 are set as the target time. The stored data of the circuit 8 are supplied to the decoder driver 5 and supplied to a comparing circuit 20. The circuit 20 compares the measurement data from the circuit 4 with the stored data supplied from the circuit 8. Further, the circuit 20 outputs alarm signals (a) and (b) to a time casting driving part 21 when the stored data indicates time which is one minute before the stored data or when the measurement data matches with the stored data.

8. 发明专利

JPH03211490A ANALOG ELECTRONIC TIMEPIECE WITH STOPWATCH 失效
公开(公告)号：JPH03211490A
公开(公告)日：1991-09-17
申请号：JP654490
申请日：1990-01-16
申请人： SEIKO INSTR INC
发明人： KANESAKA TOSHIYA
IPC分类号： G04C3/14 , G04C3/00 , G04F8/00 , G04F8/02
摘要： PURPOSE:To obtain the slim stopwatch without providing a small second hand newly by switching a second display, a minute display, or an hour display which is used for a normal time display to a 1/10-second display, second display, or minute display by a mode switching means. CONSTITUTION:A second hand 14 indicates seconds in time display mode and a 1/10 second in stopwatch display mode. The start position of the display of the stopwatch is the 0-o'clock position 15 of the timepiece. When the stopwatch 1/10-second display is made, the second hand 14 rotates clockwise by 9 steps from the 0-o'clock position and then reverses to the 0-o'clock position. Further, graduations for the time display and stopwatch display are provided on a dial 18. The constitution and operation mentioned above are realized to make the second display and the 1/10-second display of the stopwatch with the same indicating hand and dial.

9. 实用新型

JPH028238Y2 失效
公开(公告)号：JPH028238Y2
公开(公告)日：1990-02-27
申请号：JP7661184
申请日：1984-05-25
IPC分类号： G04C3/14 , G04F8/00 , G04F8/02

10. 发明专利

JPS6261914B2 失效
公开(公告)号：JPS6261914B2
公开(公告)日：1987-12-23
申请号：JP15107282
申请日：1982-08-31
申请人： SEIKO EPSON CORP
发明人： USHIGOE KENICHI
IPC分类号： G04C3/00 , G04C3/14 , G04C9/08 , G04F8/00 , G04F8/02 , G04G9/02

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