# US 2019/0314715 A1 · Chess pieces operatively arranged to communicate with a sensory chessboard and a chess set comprising the chess pieces and sensory chessboard

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- Number: US 2019/0314715 A1
- Document ID: US20190314715A1
- Status: Published application
- Kind: A1
- Application number: 16/451,649
- Filed: 2019-06-25
- Published: 2019-10-17
- Earliest claimed: 2017-07-18
- Assignees: ZmartFun Electronics, Inc.
- Applicants: ZmartFun Electronics, Inc.
- Inventors: Roberto Socorregut
- Web page: https://patentgrep.com/patent/US20190314715A1

## CPC

- A63F 3/02: Chess; Similar board games
- A63F 3/00643: {Electric board games; Electric features of board games (electric word or number games A63F3/0421; computer chess G06F; electric raffle games A63F3/081)}
- A63F 9/24: Games using electronic circuits not otherwise provided for
- A63F 13/21: characterised by their sensors, purposes or types
- A63F 13/335: using Internet
- A63F 2003/00457: {Details of game board internal structure or materials thereof}
- A63F 2009/2485: {using a general-purpose personal computer}
- A63F 2009/2489: {by radio transmitters, e.g. using RFID}
- A63F: CARD, BOARD, OR ROULETTE GAMES; INDOOR GAMES USING SMALL MOVING PLAYING BODIES; VIDEO GAMES; GAMES NOT OTHERWISE PROVIDED FOR

## Abstract

A chess piece, having a body, the body having a cavity therein, the cavity having a metal weight therein, a ferrite sheet positioned below the metal weight and in proximity thereto, and, an RFID tag positioned below the ferrite sheet, the RFID tag secured to the body.

## Claims

### Claim 1

A chess piece, comprising:
a body having a cavity therein;
a metal weight positioned within said cavity;
a ferrite sheet positioned below said metal weight and in proximity thereto; and,
an RFID tag positioned below said ferrite sheet, said RFID tag secured to said body.

### Claim 2 (depends on 9)

The chess piece recited in claim 9 further comprising a base pad fixedly secured to said RFID tag.

### Claim 3 (depends on 9)

The chess piece recited in claim 9 wherein said metal weight is made of lead.

### Claim 4 (depends on 9)

The chess piece recited in claim 9 wherein said RFID tag comprises an antenna tuned to approximately 13.56 MHz.

### Claim 5 (depends on 12)

The chess piece recited in claim 12 wherein said RFID tag antenna is tuned to a corresponding RFID antenna beneath a square on a chessboard.

### Claim 6 (depends on 12)

The chess piece recited in claim 12 wherein said RFID tag is encoded with a code which uniquely identifies the chess piece.

### Claim 7 (depends on 12)

The chess piece recited in claim 12 wherein said body is made of wood.

### Claim 8 (depends on 12)

The chess piece recited in claim 12 wherein said body is made of plastic.

### Claim 9 (depends on 12)

The chess piece recited in claim 12 wherein said body is made of bone.

### Claim 10 (depends on 12)

The chess piece recited in claim 12 wherein said body is made of ivory.

### Claim 11

A chess piece, comprising:
a body having a base;
an RFID tag secured to said base, where said RFID tag is encoded with a code which uniquely identifies the chess piece.

### Claim 12

A chess set, comprising:
a chessboard comprising:
a top layer comprising sixty-four (64) squares of alternating color arranged in eight parallel ranks and eight parallel files;
a bottom layer comprising a circuit board, said circuit board comprising sixty-four (64) radio frequency identification antennas arranged in registration with said sixty-four (64) squares of alternating color in said top layer;
an electronic circuit operatively arranged to sense positions and movement of chess pieces on said sixty-four (64) squares of said top layer, and communicate said positions and movement to a computer; and,
a plurality of chess pieces for use with said chessboard, where each chess piece comprises a radio frequency identification tag which uniquely identifies said piece, said tag operatively arranged to communicate with said radio frequency identification antennas in said circuit board.