JPS6155982B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a score display device for displaying scores and winning/losing decisions in games with similar rules having a net in the center of the court, and in particular for displaying a count of service rights.

In general, ball games that have a net in the center of the court, such as table tennis, tennis, volleyball, and badminton, have similar rules. That is, (1) A predetermined odd numbered game (set) is set, and the winner is the one who wins the majority of games (set) first.

(2) There are cases in which a player can score regardless of the right to serve, and cases in which the player with the right to serve can score.

(3) The game (set) ends when one of the players reaches a predetermined score.

(4) In the case of Juusu, the game (set) ends with a difference of 2 points.

Therefore, by creating a common score display for this range of competitions and making settings appropriate to the competition, it is possible to not only reduce the labor of referees and score display, but also to reduce the burden on private competitions where these are not present. It is also possible to display scores through operations between competitors.

The present applicant has proposed a score indicator excluding the provision of the right to serve among the above rules in Japanese Patent Application No. 3739 and No. 1983.
- Suggested by 3740. These score display devices include a plurality of switches, a score counting means that is provided corresponding to the plurality of switches and counts the score of the competition according to the input operation of the plurality of switches, and a score display means for respectively displaying the contents of the score count means; a score search means for respectively searching for prescribed scores from the contents of the score display means; and a normal search means for searching for a condition from the contents of the score count means. ,
The basic invention comprises win/lose judgment means for respectively judging the win/lose of the competition based on the search results of the user search means and the score search means, and a win/lose judgment display means for respectively displaying the win/lose judgment results by the judgment means. Additional features are being proposed one after another. The score display of the present invention has the required configuration of the previously proposed score display, and also determines the side having the first service right and the number thereof (hereinafter referred to as initial value) based on the AND output of the plurality of switches. and a service right count that counts the number of service rights based on the initial value determined by the initial service right determining means using the logical sum output of the plurality of switches as input. means, presetting means for setting the service right counting means to an initial value by the logical AND output, and service right display means for displaying the position and remaining number of service rights based on the contents of the service right counting means; an improper service right display means that is defined by the initial value of the initial service right determining means and receives the logical OR output as an input and displays a service right in an unusual situation; The present invention is characterized by comprising a selection means for selecting the right display means and the service right display means.

The present invention will be described in detail below with reference to examples.

Now, we will take a score display for table tennis as an example and enumerate the parts of the rules of table tennis that relate to service rights.

(1) Five games are alternated during each game. However, if the score reaches 20 all (20-20), the players will take turns playing one run at a time.

(2) The first server in that game becomes the receiver in the next game, and this continues alternately until one match (usually 5 games) is completed.

First, an outline of the proposed score display device will be described with reference to FIG. 1, and an embodiment of the present invention according to the above-mentioned rules added thereto will be described with reference to FIG.

In Figure 1, decimal counter (CT) 1 ₁ ~
₁₄ , and the 7 segment decoders (SD) ₂₁ to ₂₄ decode and display the signals necessary for display on the 7 segment display elements (SG) ₃₁ to ₃₄ . AND4
Game points for ₁ , 4, ₂ (for example, 21 in table tennis)
Points, 15 set points in 6-a-side volleyball
point), and use the search output to perform an OR circuit 21 ₁ , 2
Shift register (SR) through 1 ₂ 5 ₁ , 5 ₂
is shifted one bit to the right, the game count is displayed, and the score display is made to blink on the other hand.
Announce the end of the game or match to the contestants, and
Reset the advance counters (CT) ₁₁ to ₁₄ .
In addition, the second search circuit (AND)1
7, the first search output is blocked, and the up-down counter (CT) 15 determines the difference between the two points, and the determined output is used as the OR circuit 21 ₁ , 21 ₂
Shift register (SR) 5 ₁ , 5 ₂ to 1 through
The bit is shifted to the right, the game count is displayed, and the same notification and reset as described above is performed. The score counting and score display section are explained in detail in the aforementioned Japanese Patent Application No. 54-3740, so we will only give an overview here.

FIG. 2 is an explanatory diagram showing the configuration of an embodiment of the main part of the present invention, and FIGS. 3 to 4 are operational waveform diagrams thereof.

First, explanation will be given in accordance with FIG. 2 and with reference to FIG. 3. In FIG. 2, the dotted lines indicate what is included in the configuration of FIG. 1 described above.

In the figure, 22 ₁ to 22 ₁₂ are light emitting diodes, 23 ₁
~23 ₈ , 27, 28 are OR circuits, 24 is binary-
Decimal conversion decoder (for example, RCA product name)
CD4028), 29, 30, 32, and 33 are AND circuits, and 25 is a decimal counter (when the preset (PE) terminal input is high level “H”, the JAM IN terminal (J ₁
~ _J4 ) input state is preset and the output terminal _Q1 ~ _Q4
is output to. ), 26 and 31 are flip-flops, 34 and 38 are resistors, 35 and 39 are capacitors, 36 is a diode, and 37 ₁ and 37 ₂ are NOT circuits that also serve as current amplification.

Now, when the pushbutton switches 11 ₁ and 11 ₂ are turned on at the same time (at time t ₁ in FIG. 3),
The output of the AND circuit 33 changes from a low level "L" to a high level "H" (see the same diagram), and the output is connected to a capacitor 3 with a resistor 34 connected in parallel through a diode 36.
5 (same figure). The charging voltage is applied to one input of an AND circuit 32, and the flip-flop (FF) 31 is triggered by the output of the clock generator 9 applied to the other input (see FIG.
). On the other hand, the charging voltage charges a capacitor 39 through a resistor 38 (see the same figure). The charging voltage resets the shift registers ₅₁ and ₅₂ in FIG. However, as long as "H" is applied to the preset (PE) terminal at this time, presetting continues, and the input state of the JAM IN terminal continues to be output to the output terminals _Q1 to _Q4 (the same figure). ,).

Now, if the Q output of the flip-flop (FF) 31 is "H" in a certain period of the clock generator 9, then the output of the decimal counter (CT) 25 is
“H” level is given to JAM IN terminals _J1 and _J3 , and the output of the decimal counter (CT) 25 is _Q1 ;
“H”, Q ₂ ; “L”, Q ₃ ; “H”, Q ₄ ; “L” (hereinafter referred to simply as 0101), and the “H” level is output to the output terminal 5 of the binary-decimal conversion decoder 24. is output. As a result, "H" level is applied to the anode side of the light emitting diode ₂₂₆ . Also, the decoder 24
"H" at the output terminal 5 of is applied to the anode side of the light emitting diode ₂₂₇ via the OR circuit ₂₃₅ . Similarly, the light emitting diodes 22 ₈ to 2 are
“H” is given to all the anode sides of ₂₁₀ . At this time, the flip-flop (FF) 16 that stores the status is reset by the charging voltage of the capacitor 39 applied via the OR circuit 7, and its output is at the "H" level and the Q output is at the "L" level.
level, and the output “H” level is
It is inverted and amplified by the NOT circuit ₃₇₁ , and an "L" level is applied to the cathode sides of the light emitting diodes ₂₂₁ to ₂₂₁₀ , causing the light emitting diodes ₂₂₆ to ₂₂₁₀ to light up.

In addition, when the Q output of the flip-flop (FF) 31 changes from the "H" level to the "L" level in the next cycle of the clock generator 9, the decimal counter 25
All of the JAM IN terminals _J1 to _J4 of the JAM IN terminal become "L" level, the output of the decimal counter (CT) 25 becomes "0000", and "H" is output to the output terminal 0 of the decoder 24, and the above-mentioned Similarly, the light emitting diodes 22 ₁ to 22 ₅ are turned on. Here, the voltage charged in the capacitor 39 mentioned above is reset at the same time as the shift registers (SR) 5 ₁ and 5 ₂ are reset.
It is applied to one input terminal of the OR circuit 7, and the output of the OR circuit 7 changes from "L" level to "H".
One of the input terminals of the AND circuits 29 and 30 is energized (from the same figure), and the Q and output terminals of the flip-flop (FF) 31 and the flip-flop (FF) 26 are energized.
Connect the S and R terminals of each. At this time, the Q and output of the flip-flop (FF) 26 changes as the Q and output of the flip-flop (FF) 31 changes (as shown in the figure), and the light emitting diode 22 ₁₁ or 2 changes.
The "H" level is applied to the anode side of the flip-flop ( _FF ) 16, but the Q terminal of the flip-flop (FF) 16 is at the "L" level (see the same figure), and it is inverted and amplified by the NOT circuit ₃₇₂ to become the "H" level and the light emitting diode 22
₁₁ , 22 ₁₂ does not light up.

Next, when at least one of the pushbutton switches 11 ₁ or 11 ₂ is released (the time in FIG.
_t2 ), the output of the AND circuit 33 changes from "H" level to "L" level, and the capacitor 35 is connected to the resistor 34.
When the voltage reaches the "L" level (time _t3 in FIG. 3), the clock input of the flip-flop (FF) 31 is connected to the AND circuit 3.
2, and continues to maintain its current state.

Furthermore, the capacitor 39 is also discharged through the resistors 38 and 34, and at the time when its voltage reaches the "L" level (time _t4 in FIG. 3), the reset of the shift registers (SR) ₅₁ and 52 is released and the shift registers 51 and ₅₂ become active. At the same time, one input terminal of the OR circuit 7 and the OR circuit 27 is changed from the "H" level to the "L" level,
Each output "H" level is inverted to "L" level. As a result, the AND circuits 29 and 30 are closed, and the Q and output states of the flip-flop (FF) 31 and the Q, output state of the flip-flop (FF) 26' are
Output remains in the same state and stops. The preset of decimal counter (CT) 25 is canceled and JAM IN occurs.
“0000” or “0101” depending on the input state of the terminal
Stops in this state.

As described above, at the start of a table tennis match, it is possible to display the setting of the game and the service right using an electronic circuit equivalent to the toss or check performed to set the service right.

FIGS. 4A and 4B are explanatory diagrams of each operation waveform showing an example of the state of service rights ranging from normal service to abnormal service. Assume the result of Jiyanken as follows. That is, the flip-flops (FF) 31 and 26 are both Q; "L", ; "H".
It is assumed that the decimal counter (CT) 25 stops at "0000" and the "H" level is output to the output terminal 0 of the decoder 24. Therefore, in this case, 5 of the light emitting diodes 22 ₁ to 22 ₅
The symbol lights up, indicating that one player has the first five service rights. Next, when a competition is held and one of the competitors presses the pushbutton switch ₁₁₁ or ₁₁₂ in order to score and add points at the first service (see the same figure), the output terminal of the OR circuit 28 changes from the "L" level. It is inverted to "H" level, and at the rising edge, the decimal counter (CT) 25 is incremented by one digit (from the same figure), and the output terminal 1 of the decoder 24 is set to "H".
Output the level. As a result, light emitting diode 2
2 ₂ ~ 22 ₅ lights up, one service right is spent,
It is displayed that there are 4 pieces left. in this way,
The decimal counter (CT) 25 counts as the points are added one after another, and only the light emitting diode ₂₂₅ is lit, that is, the decimal counter (CT) 25
is converted to 4 from the initial state and output to the output terminal 4 of the decoder 24.
When a point is added in the same way as described above, the decimal counter (CT) 25 advances by one digit, and as a result, the output terminal 5 of the decoder 24 outputs an "H" level. The light is output and five light emitting diodes 22 ₆ to 22 ₁₀ light up. In this way, when one contestant has used all of the five service rights initially set, the other contestant is given five service rights, and they continue to serve five service rights alternately until the end of the competition. Display.

The rules stipulate that if one of the players scores less than 20 points and the other player fails to score 21 points, the score is 20 all and subsequent serves must be served one at a time.

Now suppose that one contestant scores 20 points and the other contestant scores 19 points. In this case both
39 points have been scored and 39 service rights have been used, and at this point only one light emitting diode ₂₂₁₀ is lit, indicating that it is the 40th service right.
20 if the other contestant scores as the competition progresses
It was all, and the 40th service right was also spent.

Next, the right half of FIG. 4 shows the case where the state has entered the normal stage. A flip-flop (FF) 26, which is triggered by the output of the OR circuit 28 in conjunction with the addition of points, sets Q;
“L”,; “H” is Q;
“H”; “L” and the other contestant scores.
When the 20th point is added, the total becomes 20, and the output of the flip-flop (FF) 26 changes from the "L" level to the "H" level.At the same time, the AND circuit 17 outputs the "H" level, and the flip-flop (FF)
The Q output of 16 is inverted from "L" level to "H" level (see the same figure), and light is emitted by the "L" level output of NOT circuit ₃₇₂ and the "H" level output of flip-flop (FF) 26. diode 22
₁₁ lights up. Further, when one of the contestants scores and adds points, the flip-flop (FF) 26 is inverted, and the Q output changes from the "L" level to the "H" level, and the light emitting diode ₂₂₁₂ lights up in the same manner as described above. In this manner, after 20 all, the light emitting diodes 22 ₁₁ and 22 ₁₂ are lit alternately to display the service right in accordance with the rules.

In this way, the competition progresses and the circuit for determining the winner and loser
AND circuit 4 ₁ or 4 ₂ , AND circuit 20 ₁ of 2-point difference discrimination circuit in the case of 20 cases later
Alternatively, the shift register (SR) 10 is operated via the OR circuit 6 by the discrimination output of ₂₀₂ , and the positive pulse obtained from the _Q8 output of the shift register (SR) 10 is operated via the OR circuit 7 to operate the decimal counter. (CT) ₁₁ to ₁₄ and the flip-flop (FF) 16 (in the same figure,
), decimal counter (CT) 2 via OR circuit 27
5 and then AND circuits 29 and 30.
The initial value of the flip-flop (FF) 26 is set through the steps shown in FIG.

As described above, there is a score search section that counts and displays competition scores through input operations on multiple switches, and searches for a specified score, a match search section that searches for conditions for the match, and both of the above search sections. A score display having a win/lose judgment unit that judges the win/lose of a competition based on the search result and displays the result, an initial service right determining means that determines an initial value based on a logical AND output of a plurality of switches; a service right counting means for counting service rights based on an initial value; a presetting means for setting the initial value in the service right counting means; a service right display means for displaying the contents of the service right counting means;
The apparatus is equipped with an improper service right display means for displaying a service right at an improper time, and a selection means for selecting between the improper service right display means and the service right display means. The number of service rights (for example, 5) is displayed, and as the competition progresses, each time one of the competitors adds points, one service right is subtracted, and when there are no more service rights left, the other competition A predetermined number of service rights are displayed to the user, and when an abnormality occurs, the service rights are alternately displayed one by one by the abnormality service rights display means.

Traditionally, in this type of competition, there were many opportunities for private competitions without referees, and competitors were too focused on the competition.
Players often forgot how many servings they had remaining, and there was no other way to judge it than based on the total points scored by both players, which hindered the smooth running of the competition. The display device according to the present invention not only does not make the players use unnecessary nerves, but also provides accurate display in accordance with the rules, allowing the players to concentrate purely. It is also extremely effective as an auxiliary tool for referees when used in public competitions with referees.

[Brief explanation of the drawing]

FIG. 1 is an explanatory diagram of a conventional proposed example, FIG. 2 is an explanatory diagram showing the configuration of an embodiment of the present invention, and FIGS. 3 to 4 are operational waveform diagrams of the embodiment of FIG. In the figure, 5 ₁ , 5 ₂ are shift registers, 7, 2
7, 28, _{23 1} to 23 ₈ are OR circuits, 9 is a clock generator, 11 ₁ , 11 ₂ are push button switches, 16, 26, 31 are flip-flops, 22
₁ to 22 ₁₂ is a light emitting diode, 24 is a binary-decimal conversion decoder, 25 is a decimal counter, 29, 3
0, 32, 33 are AND circuits, 34, 38 are resistors, 35, 39 are capacitors, 37 ₁ , 37 ₂ are
A NOT circuit is shown.

Claims (1)

[Scope of Claims] 1. A plurality of switches, a score counting means provided corresponding to the plurality of switches, and counting the scores of the competition by input operations of the plurality of switches, score display means for respectively displaying the contents of the score counting means; score search means for searching for predetermined scores from the contents of the score counting means; and normal search means for searching for the conditions from the contents of the score counting means; win/loss determining means for determining the winner or loser of the competition based on the search results of the general search means and the score retrieving means; win/loss determining display means for respectively displaying the results of the winning/losing determination by the win/loss determining means;
an initial service right determining means that determines the initial value of the service right based on the AND output of the plurality of switches; a service right counting means for counting the number of service rights based on the initial value determined by the right determining means; a presetting means for setting the service right counting means to an initial value by the logical AND output; defined by the contents of the right counting means, a service right display means for displaying the position and remaining number of service rights, and an initial value of the initial service right determining means;
Selecting the improper service right display means and the service right display means based on the output of the improper service right display means that inputs the logical sum output and displays the service right in the improper state, and the output of the improper search means. A score display comprising a selection means.