JPS61222469A - Tennis counter - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention provides an improvement to a tennis counter, particularly a tennis counter having a predetermined display section for arbitrarily displaying at least the points I to number of tennis matches and the number of games. It is related to.

[Prior Art] Due to the rapid increase in the number of tennis enthusiasts in recent years, tennis matches are frequently held in various places. There is a strong demand for a counter for displaying the records necessary for the progress of a game.

In particular, in regular tennis matches, it is rare for an experienced referee to lead the match, and the match is conducted by a general tennis player who is not familiar with the rules, so there are often errors in R1 calculations and memory loss. There was a problem that the correct rules could not be applied due to differences etc.

In response to such demands, portable counters for wristwatches, for example, have been proposed in the past, and one example of this type is known in Japanese Patent Laid-Open No. 58-130066.

This conventional device is characterized by displaying score counts in games involving multiple court changes, such as tennis, sequentially on the display section for each opponent, and these displays can be exchanged between the left and right sides each time there is a change in pitch. Tennis counter C is also extremely useful.

[Problems to be Solved by the Invention] Conventional Problems However, in the conventional device, at the end of each game, the display section displays the contents of the game counter that have been added in sequence, and the numbers 1 to 1 of the game counter are displayed. The content is usually troublesome to correct, such as when a tennis counter user accidentally enters a game over score.
The tennis counter itself displays a game in which one game has been added to the winner's side, and there is a problem in that this correction is extremely troublesome.

In particular, with a tennis counter that can display both points and games, it is relatively easy to correct each point, but once the game is over and the number of games has been changed, There was a problem in that it took time to correct the numbers, and it was almost impossible to make such corrections near the end of the game when the match was tense, and its practicality was questionable.

Purpose of the Invention The present invention has been made in view of the above-mentioned conventional problems, and its purpose is to restore the game display to the original point display state at the time of game over by the same operation as normal point correction. An object of the present invention is to provide an improved tennis counter.

[Means for Solving the Problems] In order to achieve the above object, the present invention includes a point counter that counts the number of points by inputting the score for each player, and a game count that counts the number of games based on the winner signal from these point counters. The game counter includes a game counter that counts the number of players, a display section that can arbitrarily display the contents of both counters, and the game counter includes a counter provided for each opponent and a pseudo display unit connected to each of these counters. It includes an addition circuit and a gate circuit for temporarily suspending the supply of the winner signal to the counter, and the winner signal is not directly supplied to the counter but is once supplied to the pseudo addition circuit and displayed on the display section. The point counter is equipped with a correction circuit that allows a simulated game display to be registered as an input to the counter by pressing the game start button, and which can invalidate the winner signal by normal correction operations in the temporary hold state. It is characterized by the presence of

[Function] According to the present invention, normal score input is performed sequentially by the input means for each opponent, and points are added and the number of games is added, and the number of games is added by a winner signal when the game is over. is performed in a temporary hold state by the pseudo addition circuit, and then the incorrectly input score is subtracted and corrected by the same operation as normal point input correction.
The number of games immediately returns to the original point display state, and the display can be quickly corrected to display the necessary information without disturbing the progress of the game.

[Example] Preferred embodiments of the present invention will be described below based on the drawings.

First, the rules of the tennis game to which the present invention is applied will be briefly explained.

1 game is O (love), 15 (fifteen), 30
(Saarty), 40 () A-T), game over 4 points 1 ~ If it is established by first to win, and both become a 3 point pair of 40.40, it will be a sea course, one of them will have an advantage, then the game will be over. This is established by winning two points in a row. One set is established by winning six games first, and one match is determined by winning a predetermined number of sets first. When each set is established, a difference of two games is a condition for establishing one set when the game is 5 vs. 5, and various different rules have been established for this. In addition, as the game progresses, Zapis rights and Two 1 to 1 rights are allocated to each opponent before the start of the match, court changes are made at the end of each odd-numbered game, and reserve rights are exchanged after each game. Also, the service position must be changed alternately for each point.

Based on the above J:Una rule, the tennis counter in this embodiment is configured to satisfactorily override these rules, and the counter can help the progress of the match within each set.

FIG. 1 shows a schematic configuration of a tennis counter according to the present invention, which includes a display body 10 that can be placed in the hands of a referee or worn on the referee's arm or the like. This display body 10 has a display part 12 capable of selectively displaying the number of points in a match and the number of games, disposed approximately in the center thereof, and according to the embodiment,
As shown in FIG. 2, the display section 12 consists of a 7-segment light emitting diode, a liquid crystal display, and display elements a-g.
A two-digit numerical display is configured in each of the left and right divided display areas.

The display body 10 is further provided with a service position display section that is characteristic of this embodiment, and in this embodiment, when the display section 12 is likened to a tennis court, four service positions are provided as 14a to 14d. By lighting or blinking any one of these four service location display sections 14, the service location can be indicated to the user.

Furthermore, the display body 10 of the embodiment has display parts 16a and 1 to the code 1.
6b, and when the opponents are A and B, the court of each opponent can be indicated by a chance judgment of the number of games.

Furthermore, in the embodiment, these two 1 to display sections 16 are also used to display an advantage, and this can be notified by changing the normal lighting display to a blinking display depending on the opponent's advantage.

As is clear from the figure, the input section 18 of the device includes five input pushbutton switches, these are the game start button 201, the foreign capotan 22 for the opponent on the left side as seen from the referee. The right input capo 24 includes a correction button 26 and a relet button 28, and these input signals are respectively outputted to a splicing processing circuit whose waveform is shaped by a chattering prevention circuit 30.

Points 1 to 1 of the opponents obtained from the input section are counted by a point counter 32, and the number of games acquired by each player is counted by a game counter 3/I in response to a game over signal according to a predetermined rule.

The points are determined by a point decoder 36 as the first acquisition of 4 points, advantage, and disuse;
As a result, a predetermined determination signal is output to the point 1 game switching circuit 38 due to game over.

In this embodiment, the court side switching circuit 4 is used to display the court side on the display section 16.
0 is provided, thereby outputting a court switching signal corresponding to the initial ]-to setting and the subsequent number of acquired games.

The number of points and number of games accompanying the match signal are displayed from the display decoder 42 to the display body 10 via the driver 47I.
In the embodiment, the number of points or the number of games is selectively displayed numerically on the display section 12. Further, as described above, the advantage is given by flashing the court display on the court display section 16a or 16b of the corresponding side.

A characteristic feature of this embodiment is that the service location display section 14 is provided within the display body 10 as described above, and the service location display section 14 is provided within the facility as described above. Correspondingly, the equipment has a Garvis position selection circuit 46, which outputs a service position signal according to a predetermined rule according to the coincidence of the number of games and the number of points as the match progresses, and selects the court/service position. A desired display signal is supplied from the display circuit 48 to the service position display section 14 via the driver 44.

In addition, the court display signal and the advantage display signal are output from the ]-]t/υ-screw position display circuit 4 to the driver/l/
It is supplied to the court display section 16 via I.

Below, based on the actual match progress, 1. The structure and operation of each circuit shown in FIG. 1 described above will be explained in sequence.

Initializing Tennis Counter To initialize the tennis counter, first, when the reset button 28 of the input section 18 is turned on, the input signal C1
- sets the flip 70 knob (hereinafter referred to as "F") 50 of the single screw position selection circuit shown in FIG.
An all-counter reset signal CLH is output, and each circuit, particularly the point counter and game counter, is reset.

At this time, in FIG. 3, the FF 52 is reset at the same time, and a code signal A3 for indicating a service position, which will be described later, is set to "O" as the output of the exclusive OR gate 54. The service position display is determined from this exclusive or gate 54, other exclusive or gates 56 that accept input from point 1, and a gate group 58.60°62.64, and a court signal A3 that changes as the game progresses. A predetermined service position signal is output from the point A4 in each game.

Further, the serve position selection circuit 46 is provided with a quaternary counter 66 and exclusive OR gates 68 and 70 for outputting court signals, and upon initialization, the quaternary counter 66 is also reset, and as a result, the counter output A1. Δ2° and the court player selection signal CPS is output from the OR gate 68 output A5 to the OR gate 70.
A is the output of the FF52. Since CPS is "0", the CPS is "0", and in this state, the display 10 in FIG. The person will be displayed.

Table 1 shows that the state of the top player selection signal CPS is sequentially switched from each counter output A, A2 to the OR gate output A5 at the time of restart 11 rise and after the start of each game, and each output is The following code 1” 3
It is selected by one choice, that is, by star 1 to Ao from rOJ or "1".

Court Selection As mentioned above, by initialization, the right court is always set to Δ and the left court is set to . -11 to table of the set "B-Δ" can be changed arbitrarily, and by selecting this court, the match starts.

FIG. 4 shows the coat selection action at this time, at time t.

After initialization, if the initialized state of the coat can be left as is, the personal capotan 22 is pressed and the FF 50 is reset via the OR gate 51 by the input of the signal P1- (time 11). The counter reset signal CLH cancels each reset signal and becomes ready to start receiving signals. And at this time,
FF52 does not change its state, and as a result, 80 is held in the rOJ state, and the court player selection signal CPS
The match starts with ROJ still in place.

On the other hand, in order to change the court from the initialized display state like the opponent [A-BJ] at the start of the match,
As shown at time t2 in FIG.
is turned on, the all counter reset signal CLH is canceled by the signal PR, and FF52 is set, and its output A is set. is set to "1" and the court player selection signal CPS is set to "1" to change the court.

Point Input Once the match initialization and court selection are performed in the manner described above, the match starts, and individual point inputs are performed as the match progresses.

In addition, the display of the service position and the 4J-
The change display of the screw position will be described later.

Point input is performed by turning on the resident capotan 22 or the manned capotan 28 of the input section 18 with the point l~ of the opponent on the left or right court, respectively.

These point 1 to input signals PL and PR have no influence on the service position selection circuit 46 since the FF 50 has already been reset and the AND GOs 1 to 72 have been closed.

FIG. 5 shows a point counter 32 and a point 1 to decoder 36, and the point counter 32 is
It includes a counter 80 and a B counter 82, with the A counter 80 displaying one opponent on the display section 12, and the B counter 82 displaying the opponent on the other side.

Further, point signals PL and PR obtained from the capotans 22 and 28 are supplied from a score addition control circuit 84 to each up input terminal U of both counters 80 and 82 via a score distribution circuit 86. Outputs a signal that increases by one point at the output.

The score distribution circuit 86 is used for initial court selection and court change.
: Even if the positions of the opponents change, these are correctly distributed to predetermined counters 80 and 82 for each opponent, and is switched by the court player selection signal CPS of the service position selection circuit. . In other words, as shown by the solid line in FIG.
", the left point signal PL is supplied to the B counter 82, and the right point signal PR is supplied to the A counter 80. Conversely, when the court is changed and CPS becomes rOJ, both point inputs are added as shown by the broken line. Supply becomes the opposite.

As described above, the points of each court player are added up by both counters 80 and 82, but as shown in Table 2, the output at this time is that the signal of the first digit is P.
CAO and the signal of the 10th digit are indicated by PCAl, and the same is true for the counter 82 used.

If the points of both the counters 80 and 82 become a pair of 40, the rule - [Deuse is declared, but in this embodiment, this state is This is a state in which all the outputs of the digits and 10th digit are "1", and this state is detected by the AND gate 88, prohibits addition of the addition control circuit 84, and immediately starts adding 1 point from now on. 15, the game over is suppressed.

The output of AND gate 88 also triggers AND gates 92 and 94 of advantage detection circuit 90.

Since the output of the score distribution circuit 86 is supplied to both andgoos 1 to 92.94, the points 1 to 94 of any opponent obtained following this dual use state.
] sets the advantage FF 96 or 98 and opens the respective corresponding side of the addition control circuit 84. Therefore, when points are accumulated from this advantage state, since the addition control circuit 84 is open only for the advantage player, it sends a signal to the corresponding counter 80 or 82, increments the counter value by one, and increases the winner A signal WA or At the same time as outputting the winner B signal WB, the OR gate 100 outputs the game end signal G'E.

The advantage circuit 90 outputs the advantage display signal ADA or ADB, thereby controlling the blinking of the display on the court display section 16 as described above (16b in FIG. 6).

When an opponent on the opposite side scores in the advantageous state, the FF 96 or 98 that was indicating an advantage is reset again, the advantage display disappears, and the opening on one side of the addition control circuit 84 is closed, so that the FF 96 or 98 is again in a deused state. The game progresses.

(7) 4 indications Both counters 80 and 82 of the point counter 32 send four types of signals corresponding to each point to PCAO (PCBO) and PGA1 (PCBl) as shown in Table 2. In this way, the point 1 to decoder 36 is provided to display the two-digit point 1 to 00, 15°30.40 on the display unit 12.

In this embodiment, the point 1 to decoder, together with a display decoder 42 to be described later, are subjected to special processing in order to simplify the circuit configuration. In other words, the display used for tennis points is an extremely limited numerical display even when the display shown in Figure 2 is used for the 7-segment 1 display, and in particular, the first digit is not displayed as "0". There are only two types of "5": 1. ><, Since there are only four types for the 10th digit, the point decoder 36 is formed from the combinations of andgoo 1 to 102, 104, 106 and the or gate 108 for each opponent, respectively, as shown in Table 2. The signal of PA3 is output from the PAO indicated by . Here, PAO is used to display the first digit, and from the remaining PAl
A3 is used to display the 10th digit. Therefore, there is an advantage that a desired display can be obtained with a simple circuit.

Game counter and points/game switching When the winner of the game is determined by the first to win 4 points or the first to win 2 points after 4 points, the game counter 34 performs counting, and the display unit 12 displays the number of games acquired by each opponent. Can be switched.

FIG. 7 shows a preferred embodiment of the game counter 34,
It includes a game counter 110 and a B game power I counter 112.

A feature of the present invention is that when a game over occurs due to incorrect counter operation, it can be easily restored to its original state. To this end, the game counter 34 is provided with a pseudo addition circuit. This pseudo addition circuit includes a +1 circuit 1171 (115), and the winning signal WA from the point counter 32 is not immediately supplied to the game counter 110 as a count signal, but is temporarily sent to the +1 circuit 114. Game counter 110 (112) indicating the number of previous games by (115)
A pseudo 1 is added to the output of , and the outputs of outputs GAO to GA3 are temporarily output. For this purpose, an AND gate 116 is provided between the winner signal WA and the game counter 110, and is controlled by the output GS of the game start button 20. Correction of the miss counter using this pseudo addition effect will be described later, but in FIG.
) is output, the game number signal GAO~GA3 (GBO~GB3) is obtained by adding 1 to the number of games acquired up to that point.
It is understood that this will be output. , (tlo in Figure 10
(or t2o) When the game is over, the point/game switching circuit 38 controls the point display to be switched to the game display. In FIG. 8, the point/game switching circuit 38 outputs point 1 to display signals PAO to P.
A3 (PBO-, -PB3) and game display signals GAO-GA3 (GB0-GB3) are switched by switching circuits 118 to 128, respectively, and the switching is controlled by either the game start signal GS or the game end signal GE. Ru. Further, since the signal PAO (PBO) for the first digit of the display from point 1 is not used in the case of game display, the AND gate 130 is activated at the same time as the above switching.
．． 132 blocks the point signal. On the other hand, the signal GA3 (GB3) on the game side is switched and controlled by the J: undo gates 134 and 136, which are valid only at the time of switching.

Therefore, according to the point/game switching circuit 38 of FIG. 8, when the point counter 32 outputs the game end signal GE, the point display shown in FIG. You can switch to the game display.

Courtside Switching Each point or game signal needs to be switched and displayed in the left and right display columns of the display section 12 each time a court change occurs.

As mentioned above, according to the tennis rules, a court change is performed at the end of every odd-numbered game, and for this reason, as shown in FIG.
4, the game start signal GS or game end signal GF is received, and the counter value is sequentially updated accordingly.

As is clear from Table 1 above, the quaternary counter 66
Output A1. Court player selection signal CP by △2
It is understood that S is sequentially switched according to its initial state, and the state of S is reversed every time an odd-numbered game ends.

Therefore, in the court side switching circuit of FIG. 8, the switching circuit 138 uses this court player selection signal CPS.
- 152 in sequence, the point signal or game signal output from the point/game switching circuit 38 can be switched to the right or left display column and output.

In addition, the switching circuit 154°156 of the court side switching circuit
are right and left switching circuits for blinking for advantage display, and switching circuits 158 and 160 are for display section 1.
It is used to switch the left and right display of the first digit in 2.

The output of the courtside switching circuit is converted by the display decoder 42 into display signals for each of seven segments a to g, and a point or game display output is obtained.

The display decoder 42 outputs a point signal PA indicating the 10th digit.
1 to PA3 (PB1 to PB3) or game signal GAO
- For GA3 (GBO-GB3), a normal decoder 162.164 is used, but as mentioned above, the first digit of the point display has two types, rOJ or "5", so the normal complicated decoder is used. As shown in the figure, the inverter 166.16
8. Andgoo 1 to 170, 172, 174.176 can be used, so that when these outputs are "O" or "1" with respect to the signal RO or LO output from the courtside switching circuit. rOJ and “
5" can be displayed.

-No'- As described above, when the game is over, the number of games acquired by the opponent will be displayed on the display unit 12 as shown in Fig. 9. The game number display is a pseudo game display by the circuit, and to confirm this, the game start button 20 of the input section 18 is turned on.

Upon receiving the game start signal GS, the AND gate 7 in FIG.
4, a count signal is supplied to a quaternary counter 66, and the set value is incremented by +1. Therefore, if a court change is required at this time, the court player selection signal CPS is automatically inverted, and the display of each opponent on the display 10 is changed, and the court display is also changed.

In FIG. 7, upon supply of the game start signal GS, the game counter 110 (112) increments its count value, ie, the number of games, by 1 based on the counter input from the AND gate 116.

124 - Also, the game start signal is the AND gate 74 in FIG.
The game next signal GN, which is the output from the OR gate 178 in FIG.
4 loses its function, and the contents of the game counter 110 are recorded as they are (t21 in FIG. 10).

Then, when the game start button 2o is released, the points of the opponent are counted by the point counter 32 of FIG. 5, which is reset by the game next signal GN, and the same operation as described above is repeated.

Game over correction When one of the opponents gets 4 points first or gets 2 points in a row from double use, it is game over, but it is often called game over due to incorrect counter operation, etc., and it is extremely difficult to recover in such cases. It was a hassle.

However, according to the present invention, by employing the pseudo addition circuit shown in FIG. 7, it is possible to easily return to the original state before deciding whether to win or lose the game, that is, before turning on the next game start button. is possible.

That is, if the game is over due to an erroneous operation, the user can instantly recover by simply pressing the correction button 26 of the input section 18 and outputting the correction signal CR.

The point counter 32 shown in FIG. 5 is provided with a correction distribution circuit 180 and a correction subtraction control circuit 182, and the point counter 32 is switched to a correction mode by the correction signal CR.

When the game is over due to an erroneous operation, a game over signal is output from at least one of the counters 80 and 82, and the subtraction control circuit 182 calculates the logical product of this game over signal and the correction signal CR, and outputs the game over signal from the corresponding counter 80. , 82, and subtracts the contents of the counters 80, 82. Therefore, counter 8
0 and 82 cut off the output of the game over signal, and thereby the winner signal WA (WB) and the game end signal GE also disappear, so that the point/game switching circuit 38 can return to the point display state again. (tll in FIG. 10) Correction of Point Input Errors Next, corrections to normal points will be explained. As mentioned above, first, the correction button 26 is turned on, and the correction signal Ct< is set to "1".

In this state, when the input button 22 or 28 on the side that has been operated incorrectly is turned on, this input signal is supplied from the correction distribution circuit 180 to the subtraction control circuit 182, as is clear from the point counter 32, and the corresponding A signal can be supplied to the counter 80 or 82 for subtraction, and the count content of the counter can be subtracted to return to the original state.

This kind of modification is the same for Advantage, and by resetting Advantage FF 96 or 98, it returns to the original deused state, but when returning to Atbandage, the contents of counters 80 and 82 return to the original 40.
Held at 40 vs.

Change of service display for each point j As mentioned above, according to this embodiment, the display body 10 is provided with a service position display section 14, The service location is initialized by initializing and selecting ]-11. In FIG. 3, the court signal Δ is the output of or games 1 to 54. performs this initial setting, and gate 58 ~
64 to any screw position, i.e. the first
Display unit 14a (SVRF) shown in the figure, 14. b
(SV, RI3), 14c (SVLB), 1
4d (SVLF) is selected (see Table 3).

As is well known, the service position is alternately changed from point 1 to the forward and back positions of the same player for each input, and for this reason, as shown in FIG.
A signal PC indicating the first digit from both counters 80 and 82
AO (PCBO) is supplied from the nix exclusive or gate 56, thereby switching the gate groups 58 to 6/l. Therefore, in one game, the signal 5VLF
and 5VLB, and 5VRF and 5VRB are alternately switched for each point.

Changing the service position at the end of each odd-numbered game Also, due to the court change at the end of each odd-numbered game according to tennis rules, the court on the serving side remains at the original court at the end of the odd-numbered game.For this reason, the court signal A in FIG. is effective, and as shown in Table 3, it is possible to accurately display the serve position according to the predetermined rules.

The court/service position display circuit 48 described above is provided to display the service position display section 14 and the court display section 16 of the row 1~/service position display unit 10, and FIG. Details are shown.

In order to display the service location, the S V RF~S
VIB and the signal G/P of the point/game switching circuit are calculated by AND gates 184-190, and control is performed to turn off the light between 1 and 1 hiss while the game is being displayed. Therefore, it is understood that the service position display section 14b is off when the game is displayed as shown in FIG. 9, but the service position display section 14b is lit when the point display is shown in FIG. Ru.

On the other hand, for yaw 1 to display, and gate 192 to 1
98 is provided, and AND gates 200 and 202 suppress the signal from the clock oscillator 204 to perform blinking control in the advantage mode.

In the normal point state up to the advantage,
A combination of RCA and LCB as shown in FIG. 13 is selected by the court player selection signal CPS, and when this is inverted, RCB and l-CA are combined.

On the other hand, in the advantage mode, the atbandage signal ADR or ADI- is output as shown in FIG. An atbandage signal will be sent by.

In addition, the above-mentioned service position display section 14 shows the serve position at the four corners of the display body 10 with the display section 12 likened to a tennis court in the embodiment, but in addition to this, rLFJ
, rLBJ, rRFJ.

It is also possible to indicate the service location with a single character designation, such as rRBj.

[Effects of the Invention] As explained above, according to the present invention, the addition of the number of games at the time of game over is not performed directly by adding a counter, but is temporarily suspended by a pseudo addition circuit, and in this state, the game start button is not pressed. The added number of games can be fixedly registered in the counter, and when an input error occurs, the number of games added at the time of game over can be restored to the original state by a simple operation similar to normal point correction. = 31 -, it is possible to easily make good corrections without interfering with the progress of the match, and it is possible to significantly improve the practicality of tennis counting.

Table 1 (Court player selection signal CPS) Table 2 (Point counter and point display signal) Table 3 (Zerb position display)

[Brief explanation of drawings]

FIG. 1 is a schematic configuration diagram showing a preferred embodiment of a tennis counter according to the present invention; FIG. 2 is an explanatory diagram showing the points or game display segment 1 to display body of the display section used in this embodiment; 3 is a circuit diagram of a preferred embodiment of the service position selection circuit in FIG. 1, FIG. 4 is a timing chart showing the operation at the start of a match in FIG. 3, and FIG. 5 is a circuit diagram of the point counter and circuit in FIG. A preferred embodiment circuit diagram of the point decoder, FIG. 6, is shown in FIG.
7 is a circuit diagram of a preferred embodiment of the game counter in FIG. 1; FIG. 8 is a point/game switching circuit shown in FIG. 1;
A circuit diagram of a preferred embodiment of a courtside switching circuit and a display decoder, FIG. 9 is an explanatory diagram showing a game display of the display shown in FIG. 1, and FIG. 10 is a simulation of the game counter shown in FIG. 7. 11 is a circuit diagram of a preferred embodiment of the court/service position display circuit shown in FIG. 1; FIG. 12 is a timing chart showing the advantage point reduction action of FIG. 11; The figure is an explanatory diagram showing an example of point display on the display body of FIG. 1. 10... Display body 12... Display section 14... Service position display section 16... Court display section 18... Input section 32... Point counter 34... Game counter 36... Point Decoder 38... Point/game switching circuit 40...
Court side switching circuit 42 ... display decoder 46 ... service position selection circuit 48 ... ]-to/service position display circuit, 110
．． 112... Counter 114, 115... Pseudo addition circuit (+1 addition circuit) 116... Gate circuit 180... Modification distribution circuit 182... Subtraction control circuit. Applicant Rhythm Time ■1 Industrial Co., Ltd. Rei Agent Patent Attorney Kenji Yoshida [7-44] (1 other person) = 39- -Fl (17- 〇 Toge Proceedings Amendment Portion (Intoxication) Patent dated May 15, 1985 Director General
! 1.Display of the incident. 1985 Patent Application No. 065924 2, Name of Invention Tennis Counter 3, Relationship with the Amendment Case Patent Applicant Address 2-27-7 Taito, Taito-ku, Tokyo Name
Rhythm Watch Industry Co., Ltd. 4. Agent 5. Drawings to be amended (The drawings have been amended to official drawings. There are no amendments to the content.) 6. Details of the amendments as shown in the attached sheet.

Claims (1)

[Claims] (1) A point counter that counts the number of points according to score input in a tennis match, a game counter that counts the number of games based on a winner signal at the time of game over supplied from the point counter, and a combination of the point counter and the game counter. In a tennis counter having a display section that arbitrarily selects and displays the number of points and the number of games based on an output signal, the game counter includes a counter provided for each opponent, and a counter that outputs a winner signal to the counter output. It includes a pseudo addition circuit that adds 1 to the contents of a counter for each input, and a gate circuit that temporarily suspends the supply of the winning signal to each counter, and opens the gate circuit to supply the winning signal to the counter. At the same time, a game start button is provided that disables the pseudo addition circuit, and the point counter is provided with a correction circuit that disables the winner signal by operating a correction button, so that when the game is over, the game number display is returned to the original point. A tennis counter characterized in that it can be returned to a display state and corrected.