EP0400542A2 - Dispositif d'affichage pour données astronomiques - Google Patents

Dispositif d'affichage pour données astronomiques Download PDF

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Publication number
EP0400542A2
EP0400542A2 EP90110089A EP90110089A EP0400542A2 EP 0400542 A2 EP0400542 A2 EP 0400542A2 EP 90110089 A EP90110089 A EP 90110089A EP 90110089 A EP90110089 A EP 90110089A EP 0400542 A2 EP0400542 A2 EP 0400542A2
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EP
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Prior art keywords
data
moon
time
register
location
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EP90110089A
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German (de)
English (en)
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EP0400542B1 (fr
EP0400542A3 (fr
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Hiroshi C/O Pat. Dep. Dev. Div. Hamura Sato
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Casio Computer Co Ltd
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Casio Computer Co Ltd
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    • G—PHYSICS
    • G04—HOROLOGY
    • G04G—ELECTRONIC TIME-PIECES
    • G04G9/00—Visual time or date indication means

Definitions

  • the present invention relates to an astronomical data indicating device which is capable of performing operation to obtain astronomical data such as moon's age data, moon phase data and/or hour angle data of the moon and so on, and is also capable of obtaining and indi­cating a good time for hunting or fishing by performing operation of the above various data.
  • a wrist watch As described in U.S. Patent Nos. 4,548,512, 4,684,260 and 4,692,031, as a device for indicating movement of the moon, a wrist watch is known, which has the hour and minute hands and is provided with a moon phase indicating disk or a moon's age indicating disk which makes one revolution during a period of about 29 days and half, thereby displaying figures of the moon.
  • the present invention has been made to improve the above mentioned inconvenience can has an object to provide an astronomical data indicating device which is capable of generating extremely precise astronomical data such as moon phase data, moon's age data and hour angle data of the moon.
  • an astronomical data indicating device which comprises location data storing means for storing location data representing a first location on the earth; first calculation means for performing calculation to obtain astronomical data representing astronomical position corresponding to a second location on the earth, said second location on the earth being pre­viously decided on a place different from the first location represented by the location data; second calculation means for performing calculation on the astronomical data obtained by said first opera­tion means to obtain astronomical data corresponding to the first location represented by the location data stored in said location data storing means; and indicating means for indicating the astronomical data obtained by said second calculation means.
  • the device constructed as mentioned above may generate not only extremely precise astronomical data, but also the device, by using these precise data such as the data concerning the moon, may provide users of the device with appropriate reference information for fishing or hunting with simple manipulation.
  • Fig. 1 is an external front view of the electronic wrist watch according to the present embodiment.
  • the watch casing body 1 is provided with a watch glass 1a approximately at its front center portion and underneath the watch glass 1a there is provided a display section 2 comprising a liquid crystal display device.
  • Fig. 2 is a view showing a construction of display elements (display electrodes) of the display section 2.
  • display elements display electrodes
  • Nine units of the liquid crystal display elements from the display element 2 a1 for a new moon at the left end side to the display element 2 a9 for a new moon at the right end side are sequentially turned on for indication of the moon phase which changes as moon's age lapses in accordance with the moon waxing and waning motion.
  • a sun display element 2b which is turned on to indicate the sunrise, while a sunrise time is indicated on segment display elements 2h, as will be described later, while at the side right to the right end display element 2 a9 , there is also provided a sun display element 2b, which is turned on to indicate the sunset while a sunset time is indicated on segments 2i, which will be also described in detail later.
  • hour angle display elements 2c At the lower side to the above sun display elements 2b for indicating the sunrise and sunset and the moon phase display elements 2 a1 to 2 a9 , there are provided 25 units of hour angle display elements 2c.
  • One of the hour angle display elements 2c which corresponds to an hour angle of the moon for each time obtained by hour angle operation, is turned on to indicate an hour angle of the moon, as will be described in detail later.
  • the hour angle display elements 2c there are printed white colored numerals on a black background, which numerals indicate hour angles of the moon such as 0 hour, 6 hours, 12 hours and 18 hours. A user of the wrist watch can seen from these numerals which are turned on what time the hour angle display element 2c is indicating.
  • indicating elements 2e of a bar type are printed for indicating good times for fishing or good times for hunting when the hour angles of the moon take these values 0, 6, 12, 18.
  • Four fish shaped indicating elements 2f printed on the upper side to the hour angle indicating elements 2c serve to indicate in accordance with the moon phase and the hour angle of the moon whether or not it is good time for fishing or hunting.
  • the user of the wrist watch can get knowledge from the number of the fish shaped indication elements 2f which are turned on, if the good time for fishing or hunting is reached. For example, since the time is best for fishing when the moon is new moon and the hour angle of the moon is 0 hour or 12 hours, all of the fish shaped indication elements 2f are turned on to advise the user of the best time for fishing.
  • Dotted matrix indicating elements 2g appearing at the left intermediate portion of the display section 2 are capable of indicating three characters and serve to indicate other information such as day of the week and moon's age. Segment indicating elements 2h and 2i consisting of a plurality of digits serve to indicate date and time, respectively.
  • the watch casing body 1 is provided with push button switches K1 and K2 at its lower portion to the display section 2.
  • Push button switches K3 and K4 are provided on the right side wall of the casing body 1 and further push button switches K5 and K6 are provided on the left side wall. Operation of these push button switches will be described later.
  • Fig. 3 is a view showing a circuit construction of the above mentioned electronic wrist watch.
  • An oscillator 10 generates a clock signal having a constant frequency such as 32,768 HZ and supplies the same signal to a frequency division circuit 11 and a timing signal generating circuit 12.
  • the frequency division circuit 11 divides the above clock signal to generate a time counting signal as a base reference signal for time counting operation of a control section (CPU) 13.
  • the timing signal generating circuit 12 generates various timing signals for operations performed by various circuits (not shown) involved in the control section 13.
  • a key switch input section 14 comprises the above mentioned switches K1 to K6 and outputs key operation signals of these switches to the control section 13.
  • the control section 13 is a central processing unit, which performs operations to obtain the present time and hour angles of the moon under control of programs prepared for performance of operations in accordance with flow charts described later.
  • the programs comprise a time counting program, a key program, a display program, a calculating program for calculating moon data such as hour angle and moon phase of the moon, a fishing program, all of which are stored in a program ROM 15.
  • the control section 13 serves to store calculation data obtained by various calculations in RAM 16 as described later and supplies display data stored in RAM 16 to a decoder driver circuit 17.
  • the display data fed to the decoder driver circuit 17 is converted into display signals and then is supplied to the display section 2 to be displayed as times, moon data such as moon phases and hour angles of the moon and so on.
  • Data ROM 18 is a read only memory for constants required for various calculations in the control sections 13.
  • Fig. 4 is a view showing a construction of a register involved in RAM 16.
  • a register A in RAM 16 is a display register for storing display data, which is to be supplied to the above mentioned decoder driver circuit 17.
  • a register M is a mode register, which is a register for storing numerical data corresponding to operation modes.
  • a present time register C serves to store present time data comprising time counted data such as year data, date data, day of the week data, hour data, minute data and second data.
  • a register B serves to store data of time dif­ference between the time stored in the register C and Greenwich Time as a location data.
  • a register D stores longitude data which is input as a location data and a register H stores latitude data which is also input as a location data.
  • a register E temporarily stores present time data stored in the register C.
  • Registers T0 to T3 serve to store fishing time date obtained by a calculation described later.
  • this flag F0 is set, an hour angle calculation is performed as will be described later.
  • a moon's age calculation is performed.
  • a flag F2 is set to a value "1", when the wrist watch is in a fishing mode i.e., when the register M takes a value "1” to display a best time data for fishing, while the flag F2 is set to a value "1", when the wrist watch is in a sunrise and sunset time display mode, i.e., when the register M takes value "2" to display sunrise time or sunset time.
  • Registers J and K store a sunrise time data and a sunset time data.
  • a register R stores moon's age data of the day obtained from a day carry of every one day stored in the register C, while a register S stores hour angle data obtained from hour carry of every one hour stored in the register C.
  • a register L stores numerical data which sequen­tially designate time difference, latitude and longitude which are to be sequentially modified, when the time difference, latitude and longitude are displayed or modified.
  • a register P serves to sequentially designate and display times stored in the registers T0 to T3, when four times best for fishing in one day, which are stored in the registers T0 to T3, are selected and displayed.
  • a register U stores a moon's age data for the date set by switch input and a register W stores hour angle data of the moon for the time set by switch input.
  • a register X stores sunrise time on the day set by switch input, while a register Y stores sunset time on the day set by switch input.
  • Registers Q0 to Q3 store data concerning how much fish is expected at the best times for fishing stored in the registers T0 to T3. In other words, the registers Q0 to Q3 store data for instructing how many fish-mark indicating elements 2f of Fig. 2 should be turned on.
  • Registers t0 and t1 store variables used in a time calculation for obtaining moon's age, hour angle of the moon, sunrise time and sunset times as will be described later.
  • a register comprising registers Z0, Z1 through Zn is a work register for performing calculation or for temporarily storing operation results.
  • Fig. 5 is a whole flow chart illustrating operation of the circuit construction system of Fig. 3.
  • the system at all times stays in a halt state at Step S1 of Fig. 5 and at time-count timing of, for example, every 16 Hz, the system executes a time-counting process in unit of less than hour unit.
  • the system counts time in units of 1/16 seconds, second and minute in the time-­counting process in unit of less than hour unit and outputs an hour carry signal, when data in minute unit reaches 60 minutes.
  • the system judges if an hour carry signal has been generated.
  • a value "1" is set to a flag F0 at Step S4. Setting a value "1" to the flag F0 allows an hour angle operation to be performed in hour unit.
  • a time-counting process in hour unit is executed at Step S5.
  • the time-counting process in hour unit it an hour carry signal has been generated as a result of the above mentioned time-counting process in unit of less than hour unit, data in hour unit is added with a value "1".
  • data in hour unit exceeds 24 hours, then a day carry signal is output.
  • Step S6 the system judges if a day carry signal has been generated.
  • a value "1" is set to a flag F1 at Step S7. Setting a value "1" allows a moon's age operation to be performed in day unit.
  • a time-counting process is executed for day, month, day of the week and year.
  • this time-counting process if a day carry signal has been generated, the day of the week is changed and data in day unit is added with a value "1". If a month carry signal or an year carry signal has been generated as a result of the above addition, time data in month unit or in year unit is revised and the revised time data is transferred to the time register C in RAM 16.
  • Step S9 it is judged that an operation timing has been reached for calculating hour angle of the moon of every hour, and at the following Step S10, an operation process is executed for calculating hour angles of the moon.
  • Step S13 After execution of the moon's age calculation at Step S13, the flag F1 is reset to "0" at Step S14 and then at Step S16 a sunrise and sunset time operation is performed for calculating a sunrise time and sunset time on that day.
  • Step S15 a display operation is executed in accordance with a mood described later.
  • Fig. 6 is a flow chart illustrating details of the hour angle operation at Step S10 of Fig. 5.
  • Step S21 of Fig. 6 the present time counted in the time counting process and stored in the register C is converted into Greenwich means time on the basis of time difference data stored in the register B and the converted Greenwich mean time is stored in a register Z0 of RAM 16.
  • a variable t is calculated for obtaining Greenwich sidereal time and right ascension of the moon and is stored in the register t0 in RAM 16.
  • variable t is calculated from the above equation and the result thereof is stored in a register t0 of RAM 16.
  • Greenwich Sidereal Time is calculated from the above equation and the result of the calculation is stored in a register Z1 of RAM 16.
  • ⁇ (m) 24 x FRAC( ⁇ /24)
  • ⁇ (m) 24 x FRAC( ⁇ /24)
  • ⁇ (m) 24 x FRAC( ⁇ /24)
  • the hour angle of the moon obtained from the above equation is stored in a register Z3 of RAM 16.
  • Step S26 date data of the time stored in the register Z0 is added with "1" and stored in the register Z4, and at the same time a variable t for the following day which is defined by adding "1" to the date data as described above is calculated and stored in the register t1 of RAM 16 in the same manner as in the process of Step S22.
  • the lunar day period is defined as a time duration from a time when an hour angle of the moon reaches 0h (0 hour) to a time when the hour angle of the moon reaches 0h (0 hour) for the second time.
  • the lunar day period is a period of the diurnal motion of the moon.
  • the lunar day period is calculated from the above equations and the result thereof is stored in a register Z8 of RAM 16.
  • Fig. 7 is a chart illustrating, for easy under­standing, an example of the calculation to obtain a lunar day period.
  • a time (Universal Time) when an hour angle of the moon reaches 0h is calculated at Step S31.
  • Fig. 8 is a chart illustrating, for easy under­standing, calculation for obtaining a time (Universal Time) when an hour angle of the moon reaches 0h.
  • a time when an hour angle of the moon reaches 0h at a designated location or at a location where time counting is executed is calculated from the time, calculated in the above operation, when the hour angle of the moon reaches 0h at Greenwich.
  • the time TH when the hour angle of the moon reaches 0h at the time counting location is calculated by substituting the longitude of the time counting location and the time difference from Greenwich Mean Time in the above equation and the result is stored in a register Z10 of RAM 16.
  • a present time under time counting operation at Step S33 i.e., an hour angle of the moon at the time stored in the register C is calculated and stored in a register S of RAM 16.
  • Fig. 9 is a chart illustrating an example of calcu­lation to obtain an hour angle of the moon : 35 minutes past 11 o'clock, at Tokyo.
  • a precise hour angle of the moon at a given time at a given location can be easily obtained by the above operation using the longitude of the given location and a time difference from Greenwich Mean Time.
  • Fig. 10 is a flow chart illustrating details of a moon's age calculation at Step S13 of Fig. 5.
  • Step S41 the time stored in the present time register C is converted into Greenwich Mean Time on the basis of the time difference from Greenwich Mean Time stored in the register B. Then, the above described variable t is calculated from the Greenwich Mean Time at Step S42.
  • Step S43 the celestial longitude of the moon is calculated from the following equation using the variable t obtained at Step S42:
  • Celestial longitude of the moon 481267.9 ⁇ t + 218.3 + 6.3 ⁇ COS(45 + 4572000 ⁇ t) + 1.3 ⁇ COS(11 + 413300 ⁇ t)
  • Step S45 an elongation of the moon is obtained from a difference between the celestial longitude of the moon and the celestial longitude of the sun obtained as mentioned above.
  • Elongation of the moon means an angle between an imaginary straight line from the earth to the sun and another imaginary straight line from the earth to the moon.
  • the moon phase changes with variations of the elongation of the moon. For example, when the elon­gation of the moon is 0 degree, the moon is a new moon. When the elongation of the moon is 180 degrees, the moon is a full moon and when the elongation of the moon is 270 degrees, the moon is a waning moon.
  • moon's age data is calculated from the above elongation of the moon and the waxing and waning period of the moon and the result is stored in a register R.
  • moon's age at Greenwich Mean Time is calculated from a proportion-calculation using the above waxing and waning period of the moon and the elongation of the moon calculated every day. Then, the moon's age at the corresponding location is calculated using a time difference between Greenwich Mean Time and the local time at the location.
  • Fig. 11 is a table which lists relations among elongation of the moon, moon's ages and phases of the moon.
  • the moon's age takes a value in the range of 0.0 to 1.8 days in accordance with the elongation of the moon.
  • the calculated moon's age data is written into the register R of RAM 16.
  • the moon's age of 0.1 to 1.8 days corresponds to a new moon.
  • moon's age data takes a value in the range of 13.0 to 16.6 days. The moon's age data obtained thus is written into the register R.
  • Fig. 12 is a flow chart illustrating in detail a sunrise and sunset time calculation at Step S16 in Fig. 5.
  • the present time is converted into Greenwich Mean Time and the result is stored in the register Z in the similar manner to that at Step S41 of Fig. 10.
  • Step S52 a variable t3 of number of days lapsed from January 1 of the year is obtained.
  • variable t3 Y - YY
  • variable t3 is stored in the register z0.
  • Step S42 the variable t is obtained at Step S53.
  • a mean time difference KJS is obtained from the variable t3 and the result is stored at Step S54.
  • sunrise and sunset times are calculated and the results are stored in registers J and K of RAM 16, respectively.
  • Fig. 13 is a flow chart illustrating in detail the display process at Step S15 of Fig. 5, and Fig. 14 illustrates transition of display states on the display section 2.
  • Step S60 of Fig. 13 it is judged if a value of the mode register M is "0".
  • Step 65 the data stored in the register A are transferred to the recorder driver circuit 17 of Fig. 3 and are displayed on the display section 2.
  • the present time 58 minutes 50 seconds after 10 o'clock P.M., June 26, Monday is displayed on the display section 2 and the moon phase on the day is displayed by a display element 2 a7 , as shown at A in Fig. 14, whereby a user of the wrist watch can get knowledge that the moon is a waning moon and that the hour angle is 15h, i.e., the moon is in the direction of 15h by a turned-on display element 2c.
  • Step S100 it is judged if the key K1 is operated. When the result is "YES”, the process advances to Step S101, where it is judged if the register M is "0". When the register M is "0”, the process advances to Step S102, where "1" is set to the register "M”.
  • Step S103 the present time stored in the register C is transferred to the register E and is stored therein.
  • the register M sequentially takes one of values "0", “1", “2", “1” and so on every time the key switch K1 is operated. In the display process of Fig.
  • Step S67 when the result is "YES”, then the process advances to Step S67, where it is judged if the flag F2 is "0".
  • Step S69 data to be displayed is transferred to the register depending on that the flag F2 is "1" or "0" (not shown), and the data is displayed at Step S65.
  • a value of the register N When a value of the register N is "0”, it is judged that the switch K2 has been operated in a state of A of Fig. 14 and the process advances to Step S110, where a value "1” is set to the register N and digits for representing "second” are designated to be corrected.
  • Step S111 the process advances from Step S111 to Step S112, where a value "0” is set to the register L while a value "2" is set to the register N.
  • Step S113 When a value of the register N is "2", the process advances from Step S113 to Step S114, where operations for obtaining hour angle of the moon, moon's age and sunrise and sunset times are executed in the same manner as in the process of Steps S10, S13 and S16 in Fig. 5 and at the same time a value "0" is set to the register N.
  • the wrist watch is brought to a time correction mode, where the present time may be corrected as shown at C in Fig. 14.
  • the wrist watch is brought to a time difference/longitude/latitude setting mode.
  • the process in the display process of Fig. 13 advances from Step S71 to Steps S74 and S75, where a value of the register L is discriminated.
  • a value of the register L is "0”
  • the process advances from Step S74 to Step S76, where character data of GMT, time difference data of the register B and time/minute/second data of the register C are transferred to the register A.
  • the sunrise time of the day, 25 minutes after 5 o'clock and the sunset time, 35 minutes after 8 o'clock are indicated on the display section together with the sunrise and sunset mark indicating elements 2b and 2b, and the moon's age data are 22.4 days and the moon phase are indicated, too.
  • a value "0" is set to the register N at step S120 in Fig. 15 and the wrist watch returns to the present time display mode shown at A in Fig. 14.
  • Step S121 when the present time correction mode is set, digits to be corrected are corrected, and when the time difference/longitude/latitude setting mode is set, time difference data, longitude data and latitude data designated by the register L are sequentially corrected or set.
  • the operation for obtaining the moon's age at Step S127 is almost similar to the operation of Step S13 in Fig. 5, i.e., the operation shown in Fig. 10.
  • the operation at Step S127 is different from the operation shown in Fig. 10 merely in that the operation at Step S127 is performed on the basis of time data stored in the register E, i.e., on the basis of the present time data or time data arbi­trarily set by operation of the switch K3 and in that moon's age data obtained by the operation at Step S46 of Fig. 10 is stored not in the register R but in the register U.
  • the operation at Step S128 for obtaining hour angle of the moon is performed in a similar manner to the operation performed at Steps S21 through S32 but is different in that the operation at Step S128 is performed on the basis of the time data in the register E.
  • Step S32 a time when the hour angle reaches 0h (hour) is obtained and stored in a register W.
  • times when hour angle reaches 6h, 12h and 18h are calculated at Step S129.
  • the time data obtained at Steps S128 and S129 are stored in the registers T0 through T3, respectively.
  • fish catch forecasting data is calculated form the moon's age data obtained at Step S127 and hour angle data of 0, 6, 12 and 18 hours and the calculated fish catch forecasting data corresponding to hour angles of 0, 6, 12 and 18 hours are stored in registers Q0 through Q3, respectively.
  • Fig. 17 is a view illustrating an operation performed at Step S131 for deciding number of fish marks to be turned on or displayed.
  • hour angle of the moon is 0h or 12h
  • the moon's age data is within the range 0.0 to 1.8 or 27.7 to 29.5 (new moon) or within the range of 13.0 to 16.0 (full moon) as shown in Fig. 11
  • data for displaying all of the four fish mark indicating elements 2f are stored in the registers Q0 and Q2 to indicate a best time for fishing.
  • the hour angle of the moon is data indicating waning moon or waxing moon
  • data for displaying three of the four fish mark indicating elements 2f is stored in the registers Q0 and Q2 to indicate a second best time for fishing.
  • Step S131 in Fig. 15 data for display process, each corresponding to an hour angle of the moon and moon's age data, are stored in the registers Q0 through Q3, respectively.
  • Step S132 a value "1" is set to the flag F2.
  • the display on the display section 2 is changed from B or I in Fig. 14 to the fishing best time indicating mode shown at G in Fig. 4.
  • the moon's age data stored in the register U, date data stored in the register E, time data at the hour angle, 0h, stored in the register T0 and numeral data "2" are transferred to the register A at Step S85.
  • Data is transferred to the register A at Step S86, which data decides which one of the moon phase indicating elements 2 a1 to 2 a9 among the moon's age data stored in the register U should be turned on or displayed.
  • the data transferred to the register A are displayed on the display section 2 at Step S65.
  • the register P takes one of values "0", “1", “2” and “3” in accordance with the operation of the switch K5.
  • the fishing catch forecasting data indicates the second best time for fishing (when all of the four fish mark indicating elements 2f are turned on, the best time for fishing is indicated and meanwhile since three fish mark indicating elements are turned on in the above case, the second best time for fishing is indicated).
  • Step S78 data to be displayed when the hour angle is 6h is transferred to the register A.
  • Step S90 data to be displayed when the hour angle is 12h is transferred to the register A.
  • Step S93 data to be displayed when the hour angle is 18h is transferred to the register A. More specifically, data for displaying the corresponding hour angle indicating elements 2c are set at Steps S87, S90 and S93, respectively.
  • Step S132 F2 is set to "1" and then it is judged at Step S69 in the display process of Fig. 13 if F2 is set to "1".
  • F2 "1" is true, the data stored in the registers U, X and Y are displayed. Accordingly, sunrise and sunset times and moon's age data on the day stored in the register E, date, moon phase and sunrise/sunset mark indicating elements 2b and 2b are displayed as shown at E in Fig. 14. The display state in this case is the same as that shown at D in Fig. 14.
  • N "1" is not true
  • Step S147 when a switch other than the above described switches, for example, a switch K6 is operated, the process advances to Step S147, where other function is effected (not shown).
  • the operation for obtaining hour angles of the moon is performed every one hour at Steps S3, S4, S9 and S10 of Fig. 10 in the present time display mode shown at A in Fig. 14 and the results are displayed with the indicating elements 2c.
  • the operation for obtaining moon's age and sunrise/sunset times is performed every time when date is changed at Steps S6, S7, S12, S13 and S16 of Fig. 5, and the moon's age data is converted into moon phase data, which is displayed with the indicating elements 2 a1 through 2 a9 .
  • the switch K3 is operated, the sunrise time as well as the sunset time on that day are displayed together with the moon's age and moon phase as shown at D in Fig. 14.
  • the present embodiment has the following features, that is, the data obtained in the embodiment, such as the hour angle of the moon, moon's age, sunrise time and sunset time are extremely precise, because the operation for obtaining these data is performed on the basis of the location data specifying a location on the earth where the present wrist watch is used, such as the longitude and latitude which have been set in the time difference/­longitude/latitude setting mode shown at F in Fig. 14 and in addition only algorithm with respect to GMT (Greenwich Mean Time) is required for operations performed in the embodiment, because the above operation is performed with respect to the present time at the location where the wrist watch is used, which present time has been converted into GMT by setting a time difference from GMT. Therefore, the process executed in very simple way in the embodiment.
  • GMT Greenwich Mean Time
  • the switch K1 when the switch K1 is operated in the present time display mode shown at A in Fig. 14, the present date is shown on the display section 2 as shown at B in Fig. 14.
  • the switch K4 When the switch K4 is operated while the present date is on display, the best time for fishing on that day is indicated as shown at G in Fig. 14.
  • the best time for fishing and fish mark indicating elements 2f are displayed on the display section 2 every time the switch K5 is operated as shown in Fig. 18.
  • the user of the wrist watch can conveniently use it, when he plans to go fishing at a best time for fishing.
  • the switch K4 when the switch K4 is operated after a desired date has been set by operation of the switch K3 in the state displaying the present date as shown at E in Fig. 14, the sunrise time, the sunset time, moon's age and moon phase on that day are displayed.
  • the present invention has been described with reference to the embodiment which is applied to a wrist watch.
  • the present invention should not be limited to the above embodiment and it may be installed in a small-sized electronic calculator, a data bank machine, a scheduler and an IC card, and further it may be installed in a particular device for fishing or for hunting.
  • the present invention may be installed in a device for indicating hour angles of the moon, moon's age, moon phases and so on.
  • Another embodiment of the invention may be constructed such that time data and location data are inputted through a keyboard which is provided with a date input key, time input key and key for inputting location on the earth and various operations are performed in terms of the input data as described with reference to the above embodiment.
  • Still another embodiment may be constructed such that moon data for one month or for one week are calcu­lated at the beginning of month or week and the results are stored in memories, and then the calculated moon data are successively displayed as time lapses.
  • the fish catch forecasting is indicated with the four fish mark indicating elements but number of the indicating elements may be increased for more precise indication or digital indicating means may be employed to indicate times for fishing in percent, such that the best time for fishing is expressed with "100%".
  • Figs. 19 to 22 are views illustrating yet another embodiment of the present invention. This embodiment will be described hereafter with reference to only its portions different from the above described first embodiment shown in Figs. 1 through 18.
  • the process of Fig. 19 includes an additional operation of Step T1 for obtaining data to indicate an expected fish catch volume after Step S10 in the whole processes of Fig. 5.
  • Step T1 number of fish mark indicating elements to be turned on is calculated at Step T2 from present hour angle of the moon and moon phase or moon's age, and the result is stored in a register Z.
  • Step T3 the data stored in the register Z is transferred to a register Q0.
  • the fish mark indicating elements stored in the register Q0 are displayed in the present time indicating mode.
  • Step T2 in Fig. 20 for obtaining number of the fish mark indicating elements is as shown in Fig. 21 and different numbers of fish mark indicating elements are obtained by combining moon phases and hour angles of the moon other than those at 0h, 6h, 12h and 18h in addition to the table shown in Fig. 17.
  • the embodiment which is capable of indicating expected fish catch volume together with the present time may be provided with a feature which functions to generate an alarm when the best time for fishing is reached or when all of the fish mark indicating elements 2f are turned on. Further, the embodiment may be provided with a feature which functions to generate different alarm sounds each time when the expected fish catch volume is changed.
  • time difference from GMT, longitude and latitude are set, but a world watch is well known which is capable of indicating cities around the world as well as the times at these cities and the present invention may be applied to this type of watch, thereby indicating moon data for these cites.
  • New York is at 74 degrees of longitude and 41 degrees of latitude and the time difference from GMT is minus 5 hours.
  • still another embodiment may be constructed such that longitude data, latitude data and time difference from GMT for various cities are stored, for example, in ROM, and when, for example, New York is designated on the world watch and time at New York is indicated, hour angle of the moon, moon phase, sunrise time and sunset time are calculated from the data stored in ROM and the present time at New York, and these data thus calculated are displayed.
  • a world watch may be constructed such that longitude data and latitude data for various cities are displayed, and these data are changed, and thereby moon data for an area in the vicinity of these cities are obtained.
  • the present invention is not limited to the above embodiments but may be used in various manners, and may be also used to obtain locations of various planets other than the moon or locations of fixed stars.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Electric Clocks (AREA)
  • Calculators And Similar Devices (AREA)
  • Digital Computer Display Output (AREA)
  • Management, Administration, Business Operations System, And Electronic Commerce (AREA)
EP19900110089 1989-05-29 1990-05-28 Dispositif d'affichage pour données astronomiques Expired - Lifetime EP0400542B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP135096/89 1989-05-29
JP13509689A JP2688649B2 (ja) 1989-05-29 1989-05-29 時刻情報表示装置

Publications (3)

Publication Number Publication Date
EP0400542A2 true EP0400542A2 (fr) 1990-12-05
EP0400542A3 EP0400542A3 (fr) 1992-01-22
EP0400542B1 EP0400542B1 (fr) 1995-02-22

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EP19900110089 Expired - Lifetime EP0400542B1 (fr) 1989-05-29 1990-05-28 Dispositif d'affichage pour données astronomiques

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EP (1) EP0400542B1 (fr)
JP (1) JP2688649B2 (fr)
DE (1) DE69017082T2 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2390185A (en) * 2002-06-28 2003-12-31 Integrated Display Technology Fish or animal location predictor

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USRE36662E (en) * 1992-07-10 2000-04-18 Galison; William A. Display of changing moon on watch face
JPH07119813B2 (ja) * 1993-01-11 1995-12-20 渉 山本 データ表示機能付時計
DE102005032356A1 (de) * 2005-07-08 2007-01-11 Poniwerski, Mark, Dr. Zeitanzeigevorrichtung, insbesondere Armbanduhr

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0042360A2 (fr) * 1980-06-10 1981-12-23 Spacetronic Société Anonyme Montre, notamment montre-bracelet, électronique à affichage digital, avec fonctions géographico-solaires
FR2500181A1 (fr) * 1981-02-13 1982-08-20 Staiger Feinmech Appareil de mesure du temps
JPS60164290A (ja) * 1984-02-07 1985-08-27 Osaki Denki Kogyo Kk ソ−ラ−機能付タイムスイツチ
GB2183869A (en) * 1984-12-05 1987-06-10 Citizen Watch Co Ltd Apparatus for displaying astrological information

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0042360A2 (fr) * 1980-06-10 1981-12-23 Spacetronic Société Anonyme Montre, notamment montre-bracelet, électronique à affichage digital, avec fonctions géographico-solaires
FR2500181A1 (fr) * 1981-02-13 1982-08-20 Staiger Feinmech Appareil de mesure du temps
JPS60164290A (ja) * 1984-02-07 1985-08-27 Osaki Denki Kogyo Kk ソ−ラ−機能付タイムスイツチ
GB2183869A (en) * 1984-12-05 1987-06-10 Citizen Watch Co Ltd Apparatus for displaying astrological information

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 10, no. 7 (P-419)(2064) 11 January 1986; & JP-A-60 164 290 (OOSAKI DENKI KOGYO K.K.) 27 August 1985 *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2390185A (en) * 2002-06-28 2003-12-31 Integrated Display Technology Fish or animal location predictor
GB2390185B (en) * 2002-06-28 2005-11-02 Integrated Display Technology Device for predicting the presence of creatures

Also Published As

Publication number Publication date
JPH02311789A (ja) 1990-12-27
DE69017082D1 (de) 1995-03-30
DE69017082T2 (de) 1995-06-14
JP2688649B2 (ja) 1997-12-10
EP0400542B1 (fr) 1995-02-22
EP0400542A3 (fr) 1992-01-22

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