WO1997003739A1 - Game apparatus - Google Patents
Game apparatus Download PDFInfo
- Publication number
- WO1997003739A1 WO1997003739A1 PCT/GB1996/001672 GB9601672W WO9703739A1 WO 1997003739 A1 WO1997003739 A1 WO 1997003739A1 GB 9601672 W GB9601672 W GB 9601672W WO 9703739 A1 WO9703739 A1 WO 9703739A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- playing
- detector
- pieces
- piece
- resistance
- Prior art date
Links
Classifications
-
- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63F—CARD, BOARD, OR ROULETTE GAMES; INDOOR GAMES USING SMALL MOVING PLAYING BODIES; VIDEO GAMES; GAMES NOT OTHERWISE PROVIDED FOR
- A63F3/00—Board games; Raffle games
- A63F3/00643—Electric board games; Electric features of board games
-
- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63F—CARD, BOARD, OR ROULETTE GAMES; INDOOR GAMES USING SMALL MOVING PLAYING BODIES; VIDEO GAMES; GAMES NOT OTHERWISE PROVIDED FOR
- A63F3/00—Board games; Raffle games
- A63F3/00643—Electric board games; Electric features of board games
- A63F2003/00662—Electric board games; Electric features of board games with an electric sensor for playing pieces
-
- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63F—CARD, BOARD, OR ROULETTE GAMES; INDOOR GAMES USING SMALL MOVING PLAYING BODIES; VIDEO GAMES; GAMES NOT OTHERWISE PROVIDED FOR
- A63F9/00—Games not otherwise provided for
- A63F9/24—Electric games; Games using electronic circuits not otherwise provided for
- A63F2009/2448—Output devices
- A63F2009/247—Output devices audible, e.g. using a loudspeaker
- A63F2009/2475—Headphones
Definitions
- the invention relates to game apparatus and in particular to apparatus which provides a detector for detecting the position of a playing piece on the apparatus.
- Many proposals have been made in the past for detecting the position of playing pieces on a board of a game but these have been relatively complex, requiring the use of specially constructed playing pieces and boards, and thus are expensive which is particularly undesirable in the field of games.
- US 5082286 discloses electronic game apparatus in which transmit and receive coils are provided beneath the playing positions and a high frequency current is supplied to each transmit coil in turn and a voltage induced in the receive coils is detected. The presence of a playing piece on the playing area being tested will affect the voltage induced in the receive coils and hence the presence, absence or type of playing piece can be determined. This approach has very limited applications since it relies on measuring changes in mutual inductance and in practice the system will only be able to measure an increase or decrease in mutual inductance enabling no more than two different types of playing piece to be distinguished.
- US-A-5013047 discloses game playing apparatus in which each playing position is divided into two halves formed as metal contacts connected to an electrical circuit.
- game apparatus comprises a playing surface defining an array of playing positions; a playing piece detector positioned behind at least one of the playing positions, the or each detector including a pair of capacitor plates electrically insulated from each other; a monitoring system connected to the or each detector for monitoring the value of a resistance in proximity to the capacitor plates and for providing a corresponding output; and a set of one or more playing pieces each having an electrically resistive surface which is placed on or adjacent to the playing surface in use, the arrangement being such that when a playing piece is placed on a playing position associated with the detector, the resistive surface is insulated from the detector but capacitively coupled with it so that the monitoring system can monitor the playing piece resistance.
- the electrically resistive surface of a playing piece is insulated from the detector by providing the surface at a position spaced from the base of the playing piece so as to ensure there is no contact therebetween.
- the electrically resistive surface is positioned on the base of the or each playing piece which contacts the playing surface, the playing surface being electrically insulated from the detector.
- the detector could be covered with an insulating coating or be physically spaced apart from the playing surface.
- the game apparatus includes a plurality of playing pieces
- only one of these pieces may be provided with an electrically resistive surface. This would be suitable in the case where the game only requires the position of one special playing piece to be monitored.
- all the playing pieces are provided with electrically resistive surfaces. In this case, the surfaces may have the same resistance but in the preferred arrangement, the electrically resistive surfaces of at least some of the playing pieces have different resistances so that they can be distinguished.
- a detector may be positioned only in association with a single playing position.
- a detector is associated with a plurality, preferably all, of the playing positions.
- the monitoring system is preferably adapted to poll each detector in turn in order to determine the identity of the playing pieces situated at each playing position.
- the monitoring system carries out a resistance measurement between the two plates of the or each detector at a frequency of about 100kHz.
- An infinite resistance indicates the absence of a playing piece while a finite resistance of a particular value will identify the piece (or pieces) on the playing position.
- the resistance measurement can be carried out in several ways as will be described below.
- the playing surface itself will generally be flat but could have any other form such as curved providing the playing pieces can be positioned on the surface.
- Figure 1 is a plan of part of a board of the game apparatus with a detector being shown in phantom;
- Figure 2 is a cross-section taken on the line 2-2 in Figure l v/ith a playing piece positioned on the board;
- Figure 3 is a block diagram of the processing electronics;
- Figure 4 illustrates part of the scan controller circuit of Figure 3 in more detail; and, Figure 5 illustrates a dummy column of detectors.
- Figure 1 illustrates part of a game board 1 which is divided into a number of playing positions 2 formed as an orthogonal array of rows and columns. Only nine playing positions have been shown in Figure 1 and typically, for example in the case of a chess board, there would be 64 playing positions.
- each playing position 2 is positioned a detector 3.
- One of the detectors 3 is shown in phantom under one of the playing positions 2 in Figure 1.
- the detector 3 is formed as an interdigitated capacitor comprising a first capacitor plate 4 having a number of laterally extending fingers 5 and a second capacitor plate 6 having a number of laterally extending fingers 7 interdigitated between the fingers 5. Only two of each of the fingers 5,7 have been shown in Figure 1 for clarity. In practice, there would be several more, for example six, of each.
- the capacitor plates are connected to processing electronics 8 via suitable tracks (not shown) arranged in conventional "rows and columns" fashion. The construction of the board can be seen in more detail in Figure 2.
- the board comprises a base 10 on which the capacitor plates 4,6 are formed, typically as printed tracks using printed circuit board technology.
- An insulated coating 11 is provided over the tracks defining the capacitors 4,6, the coating being provided with graphics. These graphics typically will outline the playing positions and provide other information in a conventional manner.
- Figure 2 also illustrates a playing piece 12 which has a resistive coating 13 on its base. It will be seen that the resistive coating 13 contacts the insulating coating 11 when the playing piece 12 is positioned at a particular playing position. However, the resistive coating 13 is spaced from the capacitor plates 4,6 by the coating 11.
- the resistive coating 13 is formed by an appropriate combination of conductive and resistive inks. In practice, since the physical dimensions of the coatings 13 on each playing piece will be substantially the same, a difference in resistance is achieved by using appropriately varied combinations of inks to obtain coatings with different resistivities. In a typical game, there will be between 12 and 20 playing pieces, each having a resistive coating with a different resistivity.
- the construction of the processing electronics is shown in more detail in Figure 3.
- the electronics includes a scan-controller circuit 20 connected to the detectors 3 on the game board 1 and constitutes a slave control circuit for the system. It is supplied with a 100kHz (27MHz is a suitable alternative) unmodulated signal from an oscillator 21 and supplies this signal in turn to all the detectors in respective columns of the array of playing positions 2. While the signal is being supplied to a column of detectors, the scan controller circuit 20 routes signals returning from the rows of the game board, in turn, to a demodulator 22.
- the analogue output from the scan controller circuit 20 for each row is fed to a demodulator 22 which includes a diode 23 in series with a parallel arrangement of a capacitor 24 and resistor 25.
- This DC analogue level is fed to an A/D convertor 26 which generates a digital output which is fed to the system controller and speech circuit 27. This is the master control circuit for the system.
- the system controller 27 has a suitably programmed microprocessor which can access a look-up table from which it can determine the playing piece resistances being monitored. At the same time, the system controller 27 is controlling the scan controller circuit 20 so that it also knows the playing position which is currently being monitored and so can determine the location and type of piece. In this example, all the pieces have resistive coatings 13 of different resistances so that following a complete scan of the game board 1, the system controller 27 can build up a complete picture of the type and location of each playing piece on the board.
- the system controller 27 can then use this information in a variety of ways depending upon the game being played.
- the system controller includes a speech circuit for generating commands and other information which is routed via the scan controller circuit 20 to one or both of a pair of headphones 30,31 worn by the players.
- the playing positions 2 may be large enough to accommodate more than one playing piece.
- Providing the resistances of the coatings 13 of the playing pieces are suitably selected, it is possible to be able to identify each individual playing piece on the playing position. For example, if the resistances of the coatings of the two pieces are R 1 , R 2 then their combined resistance will be the parallel combination of these two resistances (R) given by: 1/R 1/R- + 1/R 2
- Figures 4 and 5 show part of the scan controller circuit 20 in more detail.
- the first capacitor plates 4 of each detector 3 in Row 0 are connected to a first port of an analogue switch 40.
- the first capacitor plates 4 of successive rows are connected to successive ports of the analogue switch 40.
- Each row is also connected to a respective 1K ⁇ resistor 41-46.
- the second capacitor plates 6 of the first column (column 0) of detectors is connected to a first port of an analogue switch 47 and in a similar manner the second capacitor plates 6 of successive columns of detectors (Columns 1-4) are connected to successive ports of the analogue switch 47.
- each column of detectors is connected to a respective 1K ⁇ resistor 48-53.
- Each analogue switch 40,47 is controlled from the microprocessor within the system controller and speech circuit 27 via 3 bit row and column control lines 54,55.
- An unmodulated 100kHz signal is generated by the RC oscillator 21 and fed to the analogue switch 40.
- the analogue switch 40 is controlled by the microprocessor via control lines 54 to feed the oscillating signal in turn to each of the rows Row 0 - Row 5.
- Each of the other rows is grounded via the respective resistors 41-46.
- a signal received from a dummy column ( Figure 5) and shown as Column 5 in Figure 4 is permanently fed via a unity gain buffer 59 to the other input of the difference amplifier 58.
- the difference signal from the difference amplifier 58 is fed to the diode 23 where it is converted to DC form as shown in Figure 3.
- the effect of the presence of a playing piece in a playing position is to create a series connection between a capacitor defined by the playing piece and the first capacitor plate 4, a resistance defined by the resistance of the resistive coating 13, and a capacitor defined between the playing piece and the second capacitor plate 6.
- the impedance presented by the two capacitors can be made relatively small compared with the resistance of the coating by using coating resistances in the order of 1M ⁇ .
- each capacitance presenting an impedance of about 100 ⁇ with the result that lov/er coating resistances of the order of 100K ⁇ can be used.
- the resistance of the electrical coating is chosen to be significantly higher than the impedances presented by the capacitances so that these impedances can effectively be ignored.
- the resistance is then monitored by monitoring the current flowing through the resistance which in turn is monitored by monitoring the voltage drop across the resistors 48-53. This voltage drop, represented by the current from the difference amplifier 58 is then used to represent the monitored resistance.
- the dummy column, Column 5 is provided to eliminate effects caused by stray capacitances.
- the dummy column is not affected by the playing piece and so the signal monitored from the dummy column represents the effect of stray capacitances and can simply be subtracted from the signal received from the appropriate one of the columns Col 0-Col 4 by the dil Terence amplifier 58.
- the dummy column can be defined by a set of detectors arranged parallel with the other columns but this is not essential and indeed there is a risk that a player could affect the signal from the dummy column in this situation.
- the dummy column comprises a set of six capacitor/resistor components each connected in series to a respective row line Row 0 - Row 5 and in parallel to the Col 5 line. These are shown at 61-66 in Figure 5.
Abstract
Description
Claims
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AU64649/96A AU695447B2 (en) | 1995-07-14 | 1996-07-11 | Game apparatus |
DE69604405T DE69604405T2 (en) | 1995-07-14 | 1996-07-11 | GAME DEVICE |
EP96924068A EP0839066B1 (en) | 1995-07-14 | 1996-07-11 | Game apparatus |
NZ312747A NZ312747A (en) | 1995-07-14 | 1996-07-11 | Electronic game board, playing piece has resistive bottom surface that bridges capacitor plates in board surface |
JP9506404A JPH11509124A (en) | 1995-07-14 | 1996-07-11 | Game equipment |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GBGB9514422.6A GB9514422D0 (en) | 1995-07-14 | 1995-07-14 | Game apparatus |
GB9514422.6 | 1995-07-14 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1997003739A1 true WO1997003739A1 (en) | 1997-02-06 |
Family
ID=10777661
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/GB1996/001672 WO1997003739A1 (en) | 1995-07-14 | 1996-07-11 | Game apparatus |
Country Status (9)
Country | Link |
---|---|
EP (1) | EP0839066B1 (en) |
JP (1) | JPH11509124A (en) |
AU (1) | AU695447B2 (en) |
CA (1) | CA2226989A1 (en) |
DE (1) | DE69604405T2 (en) |
ES (1) | ES2137012T3 (en) |
GB (1) | GB9514422D0 (en) |
NZ (1) | NZ312747A (en) |
WO (1) | WO1997003739A1 (en) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2344257A (en) * | 1998-11-26 | 2000-05-31 | Innovision Research And Techno | Data communication apparatus and board game |
GB2365267A (en) * | 2000-07-27 | 2002-02-13 | Innovision Res And Technology | A data storage device |
GB2371365A (en) * | 2001-01-17 | 2002-07-24 | Sentec Ltd | Identification and location sensor |
FR2832645A1 (en) * | 2001-11-29 | 2003-05-30 | Berchet Groupe Soc | Childs educational/play platform having tracks and detectors detecting moving elements along tracks/actioning sound units with detectors contacting moving element/at distance. |
US6650870B2 (en) | 1995-12-15 | 2003-11-18 | Innovision Research & Technology Plc | Data communication apparatus |
EP2600950A1 (en) * | 2010-08-04 | 2013-06-12 | Pure Imagination LLC | Interactive game board system incorporating capacitive sensing and identification of game pieces |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2600949A1 (en) * | 2010-08-04 | 2013-06-12 | Pure Imagination LLC | Method and system for identifying a game piece |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3309817A1 (en) * | 1983-03-18 | 1984-09-27 | Arnfried Bergen Pagel | Game |
GB2215221A (en) * | 1988-02-02 | 1989-09-20 | Saitek Ltd | Sensing positions of chess and like pieces |
US5013047A (en) * | 1986-03-12 | 1991-05-07 | Dr. Schwab Gesellschaft fur Technologieberatung mbH | Apparatus for determining the identity and position of game objects |
US5082286A (en) * | 1989-09-07 | 1992-01-21 | Saitek Limited | Sensory games |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3309817A (en) * | 1964-08-17 | 1967-03-21 | Sheller Mfg Corp | Mechanically fastened door weather strip |
-
1995
- 1995-07-14 GB GBGB9514422.6A patent/GB9514422D0/en active Pending
-
1996
- 1996-07-11 JP JP9506404A patent/JPH11509124A/en active Pending
- 1996-07-11 CA CA 2226989 patent/CA2226989A1/en not_active Abandoned
- 1996-07-11 ES ES96924068T patent/ES2137012T3/en not_active Expired - Lifetime
- 1996-07-11 WO PCT/GB1996/001672 patent/WO1997003739A1/en active IP Right Grant
- 1996-07-11 EP EP96924068A patent/EP0839066B1/en not_active Expired - Lifetime
- 1996-07-11 DE DE69604405T patent/DE69604405T2/en not_active Expired - Fee Related
- 1996-07-11 NZ NZ312747A patent/NZ312747A/en unknown
- 1996-07-11 AU AU64649/96A patent/AU695447B2/en not_active Ceased
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3309817A1 (en) * | 1983-03-18 | 1984-09-27 | Arnfried Bergen Pagel | Game |
US5013047A (en) * | 1986-03-12 | 1991-05-07 | Dr. Schwab Gesellschaft fur Technologieberatung mbH | Apparatus for determining the identity and position of game objects |
GB2215221A (en) * | 1988-02-02 | 1989-09-20 | Saitek Ltd | Sensing positions of chess and like pieces |
US5082286A (en) * | 1989-09-07 | 1992-01-21 | Saitek Limited | Sensory games |
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6650870B2 (en) | 1995-12-15 | 2003-11-18 | Innovision Research & Technology Plc | Data communication apparatus |
GB2344257A (en) * | 1998-11-26 | 2000-05-31 | Innovision Research And Techno | Data communication apparatus and board game |
WO2000031676A1 (en) * | 1998-11-26 | 2000-06-02 | Innovision Research & Technology Plc | Games apparatus |
US6835131B1 (en) | 1998-11-26 | 2004-12-28 | Innovision Research & Technology Plc | Game apparatus for supplying power to playing elements |
GB2365267A (en) * | 2000-07-27 | 2002-02-13 | Innovision Res And Technology | A data storage device |
GB2371365A (en) * | 2001-01-17 | 2002-07-24 | Sentec Ltd | Identification and location sensor |
FR2832645A1 (en) * | 2001-11-29 | 2003-05-30 | Berchet Groupe Soc | Childs educational/play platform having tracks and detectors detecting moving elements along tracks/actioning sound units with detectors contacting moving element/at distance. |
EP2600950A1 (en) * | 2010-08-04 | 2013-06-12 | Pure Imagination LLC | Interactive game board system incorporating capacitive sensing and identification of game pieces |
EP2600950A4 (en) * | 2010-08-04 | 2013-12-18 | Pure Imagination Llc | Interactive game board system incorporating capacitive sensing and identification of game pieces |
Also Published As
Publication number | Publication date |
---|---|
EP0839066B1 (en) | 1999-09-22 |
ES2137012T3 (en) | 1999-12-01 |
EP0839066A1 (en) | 1998-05-06 |
DE69604405D1 (en) | 1999-10-28 |
CA2226989A1 (en) | 1997-02-06 |
AU6464996A (en) | 1997-02-18 |
DE69604405T2 (en) | 2000-05-25 |
NZ312747A (en) | 1999-01-28 |
JPH11509124A (en) | 1999-08-17 |
AU695447B2 (en) | 1998-08-13 |
GB9514422D0 (en) | 1995-09-13 |
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